IL-1 beta/IL-1F2 Antibody [Unconjugated]

HAF017). A specific band was detected for IL-1 beta /IL-1F2 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1." > HAF017). A specific band was detected for IL-1 beta /IL-1F2 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1." title="Western blot shows lysates of THP-1 human acute monocytic leukemia cell line untreated (-) or treated (+) with 200 nM PMA for 24 hours and 10 µg/mL LPS for 4 hours and RAW 264.7 mouse monocyte/macrophage cell line untreated (-) or treated (+) with 10 µg/mL LPS for 24 hours. PVDF membrane was probed with 0.25 µg/mL of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (HAF017). A specific band was detected for IL-1 beta /IL-1F2 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1." />

Western blot shows lysates of THP-1 human acute monocytic leukemia cell line untreated (-) or treated (+) with 200 nM PMA for 24 hours and 10 µg/mL LPS for 4 hours and RAW 264.7 mouse monocyte/macrophage cell line untreated (-) or treated (+) with 10 µg/mL LPS for 24 hours. PVDF membrane was probed with 0.25 µg/mL of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (<a class=

NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips." > NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips." title="IL-1 beta /IL-1F2 was detected in immersion fixed MCF-7 human breast cancer cell line using Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips." />

IL-1 beta /IL-1F2 was detected in immersion fixed MCF-7 human breast cancer cell line using Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; <a class=

CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections." > CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections." title="IL-1 beta /IL-1F2 was detected in perfusion fixed frozen sections of mouse thymus using Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections." />

IL-1 beta /IL-1F2 was detected in perfusion fixed frozen sections of mouse thymus using Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; <a class=

HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system." > HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system." title="Simple Western lane view shows lysates of RAW 264.7 mouse monocyte/macrophage cell line untreated (-) or treated (+) with 10 µg/mL LPS for 24 hours, loaded at 0.5 mg/mL. A specific band was detected for IL-1 beta /IL-1F2 at approximately 40 kDa (as indicated) using 2.5 µg/mL of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system." />

Simple Western lane view shows lysates of RAW 264.7 mouse monocyte/macrophage cell line untreated (-) or treated (+) with 10 µg/mL LPS for 24 hours, loaded at 0.5 mg/mL. A specific band was detected for IL-1 beta /IL-1F2 at approximately 40 kDa (as indicated) using 2.5 µg/mL of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (<a class=

401-ML) stimulates proliferation in the the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line) as measured by Resazurin (AR002). Proliferation elicited by Recombinant Mouse IL-1 beta /IL-1F2 (50 pg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA). The ND₅₀ is typically ≤ 0.25 µg/mL." > 401-ML) stimulates proliferation in the the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line) as measured by Resazurin (AR002). Proliferation elicited by Recombinant Mouse IL-1 beta /IL-1F2 (50 pg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA). The ND₅₀ is typically ≤ 0.25 µg/mL." title="Recombinant Mouse IL-1 beta /IL-1F2 (401-ML) stimulates proliferation in the the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line) as measured by Resazurin (AR002). Proliferation elicited by Recombinant Mouse IL-1 beta /IL-1F2 (50 pg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse IL-1 beta /IL-1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA). The ND₅₀ is typically ≤ 0.25 µg/mL." />

Recombinant Mouse IL-1 beta /IL-1F2 (<a class=

VC006). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in epithelial cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents." > VC006). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in epithelial cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents." title="IL‑1 beta /IL‑1F2 was detected in perfusion fixed paraffin-embedded sections of Mouse Intestine using Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Sheep IgG VisUCyte™ HRP Polymer Antibody (VC006). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in epithelial cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents." />

IL‑1 beta /IL‑1F2 was detected in perfusion fixed paraffin-embedded sections of Mouse Intestine using Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Sheep IgG VisUCyte™ HRP Polymer Antibody (<a class=

Quercetin inhibits auto-reactive NLRP3 inflammasome.(A) IL-1 beta concentrations in Nlrp3A350V/A350V and WT BMDM culture supernatants primed with LPS (500 ng/ml) for 90 min and treated with quercetin 1 h after LPS. (B) Supernatants of BMDM were analyzed by anti-ASC, anti-Caspase-1 immunoblotting. Lysates of BMDM were analyzed by anti-IL-1 beta and anti-beta -actin immunoblotting. Data shown are representative of two or more experiments (means ± SD) ***p < 0.001. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/28148962), licensed under a CC-BY license. Not internally tested by R&D Systems.

GRA7-I-induced inflammasome activation was required for antimicrobial activity in MTB-infected macrophages.(A and B) BMDMs from PKC alpha +/+ and PKC alpha -/- mice (A) and BMDMs were transduced with lentivirus-shRNA-NS or lentivirus-shRNA-ASC for 2 days (B) infected with MTB (MOI = 1) for 4 h and then stimulated with rGRA7 (1, 5, 10 μg/ml) and its mutants for 18 h. IB analysis for IL-1 beta p17, IL-18 p18, or caspase-1 p10 in supernatants (SN), ASC, NLRP3, pro-IL-1 beta , pro-IL-18, or pro-caspase-1 in whole-cell lysates (WCL). Actin was used as a loading control. (C and D) Intracellular survival of MTB was assessed by CFU assay. BMDMs were infected with MTB for 4 h, followed by treatment with rGRA7, and then lysed to determine intracellular bacterial loads. The data are representative of five independent experiments with similar results (A and B). Data shown are the mean ± SD of five experiments (C and D). Significant differences (*P < 0.05; **P < 0.01; ***P < 0.001) compared with rVector. CFU, colony-forming units. ns, not significant. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006126), licensed under a CC-BY license. Not internally tested by R&D Systems.

M. bovis-induced inflammasome activation requires ERS. (A) Immunoblot analysis at different time-points of Bip and p-IRE1 alpha in lysates of BMDMs infected with M. bovis (MOI 10). (B) Immunoblot analysis at different time-points of IL-1 beta in supernatants of BMDMs infected with M. bovis (MOI 10). (C) ELISA for IL-1 beta analysis from supernatants of BMDMs infected with M. bovis (MOI 10). (D) IL-1 beta immunoblot analysis of supernatants from BMDM infected for 24 h with M. bovis (MOI 10) in the presence or absence of 4-PBA. (E) ELISA for IL-1 beta quantification from supernatants of BMDMs treated with or without 4-PBA for 1 h and then infected with M. bovis (MOI 10) for 24 h. ELISA for (F) TNF- alpha and (G) IL-6 detection in supernatants from M. bovis (MOI 10) infected BMDMs. ELISA for (H) TNF-alpha and (I) IL-6 detection from supernatants of BMDMs treated with or without 4-PBA for 1 h and then infected with M. bovis (MOI 10) for 24 h. TM, tunicamycin, positive control for ERS induced mitochondrial damage, 10 μg/mL; LPS+ATP, positive control for inflammasome activation, 200 ng/mL, and 1 mM, respectively; LPS, positive control for TNF-alpha and IL-6 production, 200 ng/mL; UNT, untreated; 4-PBA, 4-phenyl butyric acid, ERS inhibitor, 5 mM; MOI, multiplicity of infection. For (C,F,G), Data are representative of at least three independent experiments, each performed in triplicate for WB. The results are shown are the mean ± SD. The asterisks indicate statistically significant differences compared with untreated cells (*P < 0.05, **P < 0.01, ***P < 0.001, n.s., not significant). P-values were obtained by using one-way ANOVA followed by post-hoc Turkey' comparison test. For (E,H,I), data are representative of at least three independent experiments. The results are shown as the mean ± SD. *P < 0.05, **P < 0.01, ***P < 0.001, n.s., not significant. P-values were analyzed using Student's t-test. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30846986)

NLRP1A is activated by N-terminal proteolysis.(A) The amino acid sequence of the first 244 residues of NLRP1AB6 was aligned to NLRP1B129 and NLRP1BB6. The arrow above the alignment indicates the LF-cleavage site in NLRP1B129. (B) 293T cells were transfected for 36h with 200ng empty vector (V) or plasmids pcDNA3.1-HA-NLRP1B129 or -NLRP1AB6-MYC (CMV promoter) along with 200ng mCASP1 and 200ng mIL-1 beta expression vectors. Cells were treated overnight with anthrax lethal toxin (LeTx, 1μg/ml) 24h post-transfection, and then lysates were analyzed by immunoblotting (IB) with the indicated antibodies. (C) 293T cells were transfected for 36h with plasmids encoding 400ng GFP-HA-NLRP1B129 or GFP-HA-NLRP1AB6 (under the control of the LTR promoter in pMSCV) or with mutants engineered to contain an N-terminal TEV protease site. Cells were also co-transfected with 100ng empty vector (V) or plasmids encoding TEV-protease (pTEV) or lethal factor protease (pLF), plus 300ng empty pMSCV. (D) To assess IL-1 beta cleavage, cells were transfected as in C, but with 8ng of GFP-HA-NLRP1B and co-transfected with vectors encoding 200ng mCASP1 and 200ng mIL-1 beta . For panels B-D, data shown are representative of at least three similar experiments. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006052), licensed under a CC-BY license. Not internally tested by R&D Systems.

Colocalization of phagosome markers with internalized Bb in WT and MyD88−/− BMDMs. a-b Confocal 40x images of WT (a) and MyD88−/− (b) BMDMs after 6 h stimulation with Bb at MOI 10:1, depicting colocalization of Bb-containing phagosomes with LAMP-1. White box indicates phagosome depicted in inset. Graph shows the intensity of each indicated pixel across the white line (distance on x-axis). Green is Bb, red is LAMP-1 and yellow is actin. c Quantitation of colocalization between Bb and LAMP-1 in 10 phagosomes of WT (black dots) and MyD88−/− (red dots) BMDMs by measuring intensity difference between LAMP-1 staining and Bb staining. d Western blot of protein lysate isolated from WT BMDMs after 6 h stimulation with Bb +/− ATP (C = cell lysate, S = supernatant) Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/34000990), licensed under a CC-BY license. Not internally tested by R&D Systems.

Differential effects of IL-1 beta neutralization on melanoma lung nodules in WT and DJ-1 KO mice.(A) IL-1 beta antibody (10μg) or control IgG was intravenously injected into mice once. The melanoma cells (6×104) were intravenously injected 30 minutes later. The mice were sacrificed three weeks later. Bar chart showed that the anti-IL-1 beta neutralizing antibody can effectively lower serum IL-1 beta levels as compared with control IgG in both WT and DJ-1 KO mice. Note that serum IL-1 beta levels were higher in DJ-1 KO mice than those in WT mice. (B) Inhibition of IL-1 beta neutralization on lung nodules formation in DJ-1 KO mice. Upper panels: melanoma nodules in lungs of WT (top) and KO (bottom) mice treated with control IgG (left) or neutralizing anti-IL-1 beta antibody (right). For each experimental condition, the gross and microscopic morphologies of tumor nodules are indicated by arrows, and are shown at left and right sites, respectively. Scale bars: 0.5 mm for lung photographs and 0.5 mm for H&E staining. Lower panel: Bar chart showed the summarized results of lung nodule numbers in WT and DJ-1 KO mice. Note that IL-1 beta neutralization enhanced and suppressed melanoma nodules formation in WT and DJ-1 KO mice, respectively. Data are presented as mean ± S.E.M. n = 5 for each group, * p < 0.05 compared with control IgG-treated WT mice, # p<0.05 compared with respective control IgG in WT and DJ-1 KO mice. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0115827), licensed under a CC-BY license. Not internally tested by R&D Systems.

Pro-IL-1 beta degradation is induced by the autophagy inhibitors chloroquine and bafilomycin A, and by the proteasome activator betulinic acid. (A) Chloroquine selectively attenuates IL-1 beta release from cardiac fibroblasts. The cells were incubated with LPS and/or 20 μM chloroquine phosphate as indicated for 18 h, then activated with 3 mM ATP for 60 min. IL-1 beta , TNF, MIP-2, and IL-6 were quantified in the conditioned media (n = 3). (B,C) Cardiac fibroblasts were incubated with LPS for 18 h with or without 20 μM chloroquine phosphate and pro-IL-1 beta quantified with western blot (n = 3). (D) Pro-IL-1 beta mRNA expression was quantified with qPCR (n = 3). (E,F) Cardiac fibroblasts were incubated with LPS for 20 h with or without 10% FCS or 20 μM chloroquine phosphate as indicated. The amount of total ubiquitinated protein was quantified with western blot (n = 4). (G,H) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 100 nM bafilomycin A1 for 20 h. Pro-IL-1 beta was quantified with western blot. (I,J) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 20 μM betulinic acid as indicated for 20 h. Pro-IL-1 beta was quantified with western blot. All columns are mean with SEM. *p < 0.05, **p < 0.01 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31244838), licensed under a CC-BY license. Not internally tested by R&D Systems.

The B6 variant of NLRP1B is not cleaved by LF but can form an inflammasome in response to proteolysis.(A) The amino acid sequence of the first 244 residues of NLRP1BB6 was aligned to the homologous sequence of NLRP1B129. The arrow above the alignment indicates the LF-cleavage site in NLRP1B129. Asterisks indicate sites of amino acid identity. (B) For detection of NLRP1B expression, 293T cells were transfected with the indicated amounts of and empty vector (V) or plasmids encoding GFP-HA-NLRP1B129 or GFP-HA-NLRP1BB6 (construct schematics and the predicted molecular weight of each protein is depicted in the upper panel). Cells were treated overnight with anthrax lethal toxin protein (LeTx, 1μg/ml) 24h post-transfection, and then lysates were analyzed by immunoblotting (IB) with the indicated antibodies. For NLRP1 expression and cleavage, CASP1 and IL1B were omitted to prevent cell death and resulting apparent differences of expression. For blots probed with anti-HA (NLRP1B), the lysates were not boiled prior to loading to prevent aggregation and smearing of full-length and FIIND-processed NLRP1B on the immunoblot. To visualize the N-terminal processed form of NLRP1B, the lysates were boiled and resolved on a separate gel. (C) 293T Cells were transfected with the same amount of titrated NLRP1B encoding plasmid and treated as in B, but transfections also included plasmids encoding mouse CASP1 (200ng), IL-1 beta (200ng) and 200ng of empty vector. (D) For detection of NLRP1B expression, 293T cells were transfected for 36h with 250ng of plasmids encoding WT 129 or B6 NLRP1B or mutants engineered to express the TEV-protease site. Each plasmid was co-transfected with either 100ng of empty vector (V) or plasmids encoding TEV-protease (pTEV) or lethal factor protease (pLF), supplemented with 300ng empty vector (pMSCV). Cells were not treated with LeTx and lysates were analyzed by immunoblotting as in (B). (E) Cells were treated as in C, but with 8ng of plasmids encoding NLRP1B, al

Pro-IL-1 beta degradation is induced by the autophagy inhibitors chloroquine and bafilomycin A, and by the proteasome activator betulinic acid. (A) Chloroquine selectively attenuates IL-1 beta release from cardiac fibroblasts. The cells were incubated with LPS and/or 20 μM chloroquine phosphate as indicated for 18 h, then activated with 3 mM ATP for 60 min. IL-1 beta , TNF, MIP-2, and IL-6 were quantified in the conditioned media (n = 3). (B,C) Cardiac fibroblasts were incubated with LPS for 18 h with or without 20 μM chloroquine phosphate and pro-IL-1 beta quantified with western blot (n = 3). (D) Pro-IL-1 beta mRNA expression was quantified with qPCR (n = 3). (E,F) Cardiac fibroblasts were incubated with LPS for 20 h with or without 10% FCS or 20 μM chloroquine phosphate as indicated. The amount of total ubiquitinated protein was quantified with western blot (n = 4). (G,H) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 100 nM bafilomycin A1 for 20 h. Pro-IL-1 beta was quantified with western blot. (I,J) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 20 μM betulinic acid as indicated for 20 h. Pro-IL-1 beta was quantified with western blot. All columns are mean with SEM. *p < 0.05, **p < 0.01 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31244838), licensed under a CC-BY license. Not internally tested by R&D Systems.

Rapamycin increases pro-IL-1 beta protein levels, rescues serum starvation-induced pro-IL-1 beta degradation, inhibits mTOR but induces no autophagy in LPS-stimulated cardiac fibroblasts. (A) IL-1 beta release was quantified in conditioned media from cardiac fibroblasts primed with 10 ng/mL LPS for 20 h with or without 500 nM rapamycin, as indicated, prior to activation with 3 mM ATP for 60 min. (B,C) Fibroblasts were primed with 10 ng/mL LPS for 20 h with or without 500 nM rapamycin and pro-IL-1 beta western blot performed (n = 3). (D,E) Control cells were incubated with 10% FCS, while serum deprived cells were incubated with or without 500 nM Rapamycin. Protein expressions were quantified with western blot (n = 4) (F,G). IL-1 beta and TNF-alpha were quantified in conditioned media from cardiac fibroblasts incubated with or without 10% FCS and 500 nM rapamycin and stimulated with LPS 10 ng/mL for 20 h prior to activation with 3 mM ATP for 60 min as indicated (n = 6) (H,I) IL-1 beta and TNF mRNA were quantified with PCR. (J–L) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 500 nM rapamycin for 20 h and mTOR (K) and p70 S6 kinase (L) activity were quantified with western blot (n = 5). (M,N) Cardiac fibroblasts primed with LPS (10 ng/mL) were incubated with 10% FCS (control) or no serum for 4 h. Cells were labeled with anti-LC3B and Hoechst and whole slides scanned with an automated immunofluorescence microscope. LC3B puncta in all cells in were automatically counted and ratio to number of Hoechst-labeled kernels calculated. Columns are mean with SEM of paired data normalized to control = 1 (n = 5). (O) Cardiac fibroblasts were incubated with 10% FCS, 10 ng/mL LPS, and/or 5 mM 3-methyladenine (3-MA) for 18 h and/or ATP 3 mM for 60 min as indicated (n = 3). Rapa: rapamycin. 3-MA: 3-methyladenine, ns: not significant, *p < 0.05, **p < 0.01, ****p < 0.0001 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubm

SHP deficiency increases caspase-1 cleavage and IL-1 beta maturation.(a–e) LPS-primed BMDMs from SHP+/+ and SHP−/− mice were stimulated with ATP (5 mM, a,d), nigericin (15 μM, b,e), or transfected with polyinosine–polycytidylic acid (poly I:C, 5 μg ml−1, c) for the indicated durations. (a–c) Supernatants were collected and subjected to ELISA for interleukin (IL)-1 beta , IL-18 and tumour necrosis factor (TNF)-alpha . (d,e) IB analysis for IL-1 beta p17 or caspase-1 p10 in supernatants (SN), SHP, pro-IL-1 beta or pro-caspase-1 in whole-cell lysates (WCL). Actin was used as a loading control. *P<0.05; **P<0.01; ***P<0.001, compared with SHP+/+ cell cultures (two-tailed Student’s t-test). Data are the means±s.d. of values from four independent experiments (a–c). Data are representative of three independent experiments with similar results (d,e). Image collected and cropped by CiteAb from the following publication (//www.nature.com/articles/ncomms7115), licensed under a CC-BY license. Not internally tested by R&D Systems.

ERS mediates M. bovis-induced inflammasome activation in vivo. (A) ELISA detection of IL-1 beta in serum samples from C57BL/6 mice treated with or without 4-PBA (18.6 mg/mouse/day) and infected with M. bovis (CFU 200) (n = 7). (B) Immunoblot analysis of NLRP3, AIM2, pro-IL-1 beta , and IL-1 beta in the lung tissues of M. bovis-infected mice in the presence or absence of 4-PBA. (C,D) Pathological lesions (H&E staining) in the lung of mice infected with M. bovis for 3 weeks (C) or 6 weeks (D) in the presence or absence of 4-PBA (18.6 mg/mouse/day) (n = 3). 4-PBA, 4-phenyl butyric acid, ERS inhibitor, 18.6 mg/mouse/day; CFU, colony forming units (n = 3). The results are shown as the mean ± SD. ***P < 0.001, n.s., not significant. P-values were analyzed by using Student's t-test (C,D). Scale bar = 100 μm. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30846986), licensed under a CC-BY license. Not internally tested by R&D Systems.

POH1 negatively modifies K63-linked polyubiquitination of pro-IL-1 beta . a BMDMs stimulated with LPS for the indicated time periods were immunoprecipitated (IP) with an anti-POH1 or control IgG antibody and immunoblotted (IB) with the indicated antibodies. b HEK293T cells transfected with His-POH1 and either Flag-NLRP3, Flag-caspase-1 or Flag-ASC were subjected to IP with an anti-Flag antibody and IB with an anti-His antibody. c The lysates of HEK293T cells expressing Flag-POH1 and His-pro-IL-1 beta were IP with an anti-Flag antibody and IB with an anti-His antibody in cell lysates. d HEK293T cells transfected with Vsv-ASC, V5-tagged pro-caspase-1, HA-tagged K48-only or K63-only Ub and His-tagged pro-IL-1 beta , along with or without Flag-tagged POH1, were subjected to IP with an anti-V5 antibody or anti-His antibody and then IB with the indicated antibodies. ePoh1 delta /+ and Poh1 delta / delta BMDMs treated as indicated were subjected to IP with an anti-pro-IL-1 beta antibody and IB with the indicated antibodies. f HEK293T cells were transfected with Flag-caspase-1, Vsv-ASC, His-pro-IL-1 beta , Flag-POH1 (WT) or Flag-H113Q-POH1, along with HA-tagged K63-only Ub, then cells were subjected to IP with an anti-His or control IgG antibody and IB with the indicated antibodies. Similar results were obtained from three independent experiments Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30315153), licensed under a CC-BY license. Not internally tested by R&D Systems.

BTK inhibitors and its dysfunctional mutation suppress NLRP3 inflammasome activation.(a) Enzyme-linked immunosorbent assay (ELISA) of human IL-1 beta in supernatants and immunoblot analysis of human IL-1 beta p17, caspase-1 p20/p22 in supernatants and pro-IL-1 beta in cell lysates of THP-1-Mφs that were pretreated with the indicated inhibitors for 30 min and then stimulated with alum for 6 h. ELISA of murine IL-1 beta (b,c) and TNF-alpha (b) in supernatants of LPS-primed murine peritoneal macrophages that were pretreated with LFM-A13 and then stimulated with alum for 3 h. (d,e) Immunoblot analysis of the indicated proteins (d) and ELISA of murine IL-1 beta and IL-6 in supernatants of LPS-primed peritoneal macrophages from Xid and WT mice stimulated with alum for 6 h. (f) ELISA of murine IL-1 beta in supernatants of LPS-primed murine peritoneal macrophages pretreated with LFM-A13 and/or Syk inhibitor (R406), then stimulated with alum for 3 h. (g) ELISA of murine IL-1 beta and immunoblot analysis of murine caspase-1 p20 in supernatant of LPS-primed murine peritoneal macrophages stimulated with the indicated NLRP3 inflammasome activators for 3 h. Immunoblot analysis of murine IL-1 beta p17, caspase-1 p20 in supernatants, pro-IL-1 beta , pro-caspase-1 and ASC in cell lysates (h), and ELISA of murine IL-1 beta in supernatants (i) of LPS-primed murine peritoneal macrophages that were pretreated with LFM-A13 and then stimulated with alum or poly(dA:dT) for 3 h. Data are representative of three independent experiments. Data are presented as mean±s.d. (triplicate). **P<0.01; ***P<0.003. Two-sided Student's t-test. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/26059659), licensed under a CC-BY license. Not internally tested by R&D Systems.

Rapamycin increases pro-IL-1 beta protein levels, rescues serum starvation-induced pro-IL-1 beta degradation, inhibits mTOR but induces no autophagy in LPS-stimulated cardiac fibroblasts. (A) IL-1 beta release was quantified in conditioned media from cardiac fibroblasts primed with 10 ng/mL LPS for 20 h with or without 500 nM rapamycin, as indicated, prior to activation with 3 mM ATP for 60 min. (B,C) Fibroblasts were primed with 10 ng/mL LPS for 20 h with or without 500 nM rapamycin and pro-IL-1 beta western blot performed (n = 3). (D,E) Control cells were incubated with 10% FCS, while serum deprived cells were incubated with or without 500 nM Rapamycin. Protein expressions were quantified with western blot (n = 4) (F,G). IL-1 beta and TNF-alpha were quantified in conditioned media from cardiac fibroblasts incubated with or without 10% FCS and 500 nM rapamycin and stimulated with LPS 10 ng/mL for 20 h prior to activation with 3 mM ATP for 60 min as indicated (n = 6) (H,I) IL-1 beta and TNF mRNA were quantified with PCR. (J–L) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 500 nM rapamycin for 20 h and mTOR (K) and p70 S6 kinase (L) activity were quantified with western blot (n = 5). (M,N) Cardiac fibroblasts primed with LPS (10 ng/mL) were incubated with 10% FCS (control) or no serum for 4 h. Cells were labeled with anti-LC3B and Hoechst and whole slides scanned with an automated immunofluorescence microscope. LC3B puncta in all cells in were automatically counted and ratio to number of Hoechst-labeled kernels calculated. Columns are mean with SEM of paired data normalized to control = 1 (n = 5). (O) Cardiac fibroblasts were incubated with 10% FCS, 10 ng/mL LPS, and/or 5 mM 3-methyladenine (3-MA) for 18 h and/or ATP 3 mM for 60 min as indicated (n = 3). Rapa: rapamycin. 3-MA: 3-methyladenine, ns: not significant, *p < 0.05, **p < 0.01, ****p < 0.0001 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubm

SHP inhibits the signal 2 activation of NLRP3 inflammasome.(a,b) LPS-primed BMDMs were treated with fenofibrate (10, 20, 50 μM for 4 h), or (c,d) LPS-primed THP-1 cells were treated with recombinant macrophage-stimulating protein (MSP 10, 50, 100 ng ml−1 for 4 h), and then activated with ATP (5 mM) for 30 min, followed by IB analysis of IL-1 beta p17 or caspase-1 p10 in supernatants (SN), pro-IL-1 beta or pro-caspase-1 in whole-cell lysates (WCL), with actin as a loading control. Data are representative of three independent experiments (a,c). Supernatants were collected and subjected to ELISA for IL-1 beta , IL-18, TNF-alpha and IL-8. Data are the means±s.d. of values from four independent experiments (b,d). *P<0.05; **P<0.01; ***P<0.001, compared with control (two-tailed Student’s t-test). FF, fenofibrate. Image collected and cropped by CiteAb from the following publication (//www.nature.com/articles/ncomms7115), licensed under a CC-BY license. Not internally tested by R&D Systems.

The ESX-1 secretion system of Mtb does not affect secretion of proinflammatory cytokines in dendritic cells but is important for complete inflammasome activation.BMDCs were left uninfected (UI), infected with wild-type Mtb (Mtb) or the esxA deletion mutant ( delta esxA) for 4 h at MOI of 10, washed and incubated for an additional 24 h (A+B) or the indicated timepoints (C+D). (A) The cytokine profile in the supernatants was analyzed using a bead-based immunoassay (black = uninfected, white = Mtb, gray = delta esxA). (B) and (C) IL-1 beta secretion was analyzed by ELISA. (D) The percent of cells with activated caspase-1 was determined via flow cytometry using fluorescent caspase-1 substrates (FLICA). (E) Pro-IL-1 beta protein levels in BMDCs. (F) GFP-labeled bacteria were used to infect BMDCs and rate of infection was determined via flow cytometry. Shown are means and standard deviation of triplicate measurements of one representative experiment out of three. In all figures, the asterisks denote range of p values (* = p<0.05, ** = 0.01>p>0.001,***p<0.001, ns = not significant ) as determined by one way ANOVA with Tukey's post test. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0040722), licensed under a CC-BY license. Not internally tested by R&D Systems.

Effects of IL-1 beta neutralization on the accumulation of MDSCs in lungs.(A) Immunofluorescent photos showed that Gr-1+ (green)/CD11b+ (red) cells indicate MDSCs and increased in lungs of DJ-1 KO mice. Treatment with anti-IL-1 beta neutralizing antibody antagonized the accumulation of MDSCs. DAPI was used to stain nuclei. (B) Bar chart showed the summarized results of MDSCs in lungs of WT and DJ-1 KO mice. Note that the neutralizing antibody significantly reduced the number of MDSCs accumulated in lungs. n = 9 for each group, * p < 0.05 compared with control IgG-treated WT mice, # p<0.05 compared with respective control IgG in WT and DJ-1 KO mice. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0115827), licensed under a CC-BY license. Not internally tested by R&D Systems.

Pro-IL-1 beta degradation is induced by the autophagy inhibitors chloroquine and bafilomycin A, and by the proteasome activator betulinic acid. (A) Chloroquine selectively attenuates IL-1 beta release from cardiac fibroblasts. The cells were incubated with LPS and/or 20 μM chloroquine phosphate as indicated for 18 h, then activated with 3 mM ATP for 60 min. IL-1 beta , TNF, MIP-2, and IL-6 were quantified in the conditioned media (n = 3). (B,C) Cardiac fibroblasts were incubated with LPS for 18 h with or without 20 μM chloroquine phosphate and pro-IL-1 beta quantified with western blot (n = 3). (D) Pro-IL-1 beta mRNA expression was quantified with qPCR (n = 3). (E,F) Cardiac fibroblasts were incubated with LPS for 20 h with or without 10% FCS or 20 μM chloroquine phosphate as indicated. The amount of total ubiquitinated protein was quantified with western blot (n = 4). (G,H) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 100 nM bafilomycin A1 for 20 h. Pro-IL-1 beta was quantified with western blot. (I,J) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 20 μM betulinic acid as indicated for 20 h. Pro-IL-1 beta was quantified with western blot. All columns are mean with SEM. *p < 0.05, **p < 0.01 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31244838), licensed under a CC-BY license. Not internally tested by R&D Systems.

Pro-IL-1 beta maturation is regulated by POH1-mediated deubiquitination. a, b HEK293T cells were transfected with plasmids encoding Flag-caspase-1, Vsv-ASC, His-pro-IL-1 beta (WT) or His-pro-IL-1 beta -K133R with different amounts (125, 250, 500 ng) of plasmid encoding Flag-POH1 and 500 ng of control plasmid, the secretion of a IL-1 beta in the supernatants was quantified by ELISA 36 h after transfection; b the cell lysates were IB with the indicated antibodies. c Mutants of murine pro-IL-1 beta with replacement of various lysine residues. d-f HEK293T cells were transfected with Flag-POH1, V5-caspase-1, V5-ASC, His-pro-IL-1 beta (WT) or its mutants, along d with or e-f without HA-tagged K63-only Ub, then d cells were subjected to IP with an anti-His antibody and IB with the indicated antibodies. e The IL-1 beta levels in supernatants were measured by ELISA; or f the cell lysates were collected and IB with the indicated antibodies. g Proposed function of POH1 as a negative regulator in mediating IL-1 beta processing. POH1, upregulated by TLR3/4 activation, interacts with and deubiquitinates pro-IL-1 beta , resulting in restriction of IL-1 beta cleavage and secretion. Similar results were obtained from three independent experiments. The results represent the mean ± s.d. of three independent sets of experiments. **p < 0.01, ***p < 0.001 (one-way ANOVA with Tukey’s post-hoc test) Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30315153), licensed under a CC-BY license. Not internally tested by R&D Systems.

Serum starvation selectively induces pro-IL-1 beta degradation in cardiac fibroblasts. (A) Cells were incubated with 10 ng/mL LPS for 5 or 20 h with or without 10% FCS and western blot analysis of pro-IL-1 beta and NLRP3 performed. Blots are representative of 3 independent experiments. (B) Protein bands were quantified and the ratios to beta -actin normalized to mean control = 1 (n = 3). (C,D) Cardiac fibroblasts were incubated with or without 10% FCS and primed with LPS for 20 h. Western blot analysis of complex II (mitochondrial mass marker) and NLRP3- inflammasome protein components (NEK7, NLRP3, ASC, pro-caspase-1, and pro-IL-1 beta ) were performed. Bands were quantified and the ratios to beta -actin normalized to mean control = 1 (n = 4, for ASC n = 10). (E,F) Cardiac fibroblasts (120,000 cells per well seeded in 6 well plates) were incubated with 10 ng/mL LPS for 20 h, with or without 10% FCS, then stained with 500 nM MitoTracker Deep Red for 45 min before MitoTracker fluorescence intensity was quantified with flow cytometry analysis (633 nm laser). All cells were analyzed and all gated cells included in the analysis. The presented dot plots (E) show the gate in red and are representative for 9 biological repeats. Median MitoTracker intensity with and without 10% FCS are shown (F). All columns are mean with SEM. *p < 0.05,**p < 0.01 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31244838), licensed under a CC-BY license. Not internally tested by R&D Systems.

Differential effects of IL-1 beta neutralization on melanoma lung nodules in WT and DJ-1 KO mice.(A) IL-1 beta antibody (10μg) or control IgG was intravenously injected into mice once. The melanoma cells (6×104) were intravenously injected 30 minutes later. The mice were sacrificed three weeks later. Bar chart showed that the anti-IL-1 beta neutralizing antibody can effectively lower serum IL-1 beta levels as compared with control IgG in both WT and DJ-1 KO mice. Note that serum IL-1 beta levels were higher in DJ-1 KO mice than those in WT mice. (B) Inhibition of IL-1 beta neutralization on lung nodules formation in DJ-1 KO mice. Upper panels: melanoma nodules in lungs of WT (top) and KO (bottom) mice treated with control IgG (left) or neutralizing anti-IL-1 beta antibody (right). For each experimental condition, the gross and microscopic morphologies of tumor nodules are indicated by arrows, and are shown at left and right sites, respectively. Scale bars: 0.5 mm for lung photographs and 0.5 mm for H&E staining. Lower panel: Bar chart showed the summarized results of lung nodule numbers in WT and DJ-1 KO mice. Note that IL-1 beta neutralization enhanced and suppressed melanoma nodules formation in WT and DJ-1 KO mice, respectively. Data are presented as mean ± S.E.M. n = 5 for each group, * p < 0.05 compared with control IgG-treated WT mice, # p<0.05 compared with respective control IgG in WT and DJ-1 KO mice. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.pone.0115827), licensed under a CC-BY license. Not internally tested by R&D Systems.

Inflammasome assembly and mature IL-1 beta release in the spinal cord after sciatic nerve axotomy. a Speck-like costaining of NLRP3 and ASC in injured neurons 3 days after the injury (arrows). b Representative WB images of mature IL-1 beta and beta -actin proteins 3 days after unilateral axotomy of sciatic nerve. c Quantification of active IL-1 beta protein expression. N = 3 animals/group. The graph shows values normalized to beta -actin levels and relative to contralateral side. Mean values are shown on bars. Bars represent average ± SEM. **p < 0.01 (ANOVA with Bonferroni post hoc, ax. + vehicle vs. contralateral side). #p < 0.05, ##p < 0.01 (ANOVA with Bonferroni post hoc, compared to ax. + vehicle). Ax. axotomy Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/35305649), licensed under a CC-BY license. Not internally tested by R&D Systems.

GRA7-I activated inflammasomes in an ASC-binding dependent manner.(A) Bacterially purified 6xHis-GRA7-I and its mutants were analyzed by Coomassie blue staining (left) or IB with alpha His (right). (B) BMDMs from PKC alpha +/+ and PKC alpha -/- (left) or BMDMs were transduced with lentivirus-shRNA-NS or lentivirus-shRNA-ASC (MOI = 100) with polybrene (8 μg/mL) (right) for 2 days, the cells were stimulated with rGRA7 (5 μg/ml) and its mutants for the indicated times and culture supernatants were harvested and analyzed for cytokine ELISA for IL-1 beta and IL-18. Data shown are the means ± SD of five experiments. Significant differences (*P < 0.05; ***P < 0.001) compared with PKC alpha +/+ or shRNA-NS. (C) IB analysis for IL-1 beta p17, IL-18 p18, or caspase-1 p10 in supernatants (SN), ASC, NLRP3, pro-IL-1 beta , pro-IL-18, or pro-caspase-1 in whole-cell lysates (WCL). Actin was used as a loading control. (D) IB analysis of lysates of BMDMs as in B and C solubilized with Triton X-100–containing buffer, followed by cross-linkage of insoluble fractions with disuccinimidyl suberate to capture ASC oligomers and analysis of those fractions (I + DSS) and soluble fractions (S) with antibody to ASC. Actin was used as a loading control. (E) Fluorescence confocal images showing formation of speck-like ASC pyroptosomes in BMDMs from PKC alpha +/+ and PKC alpha -/- mice were stimulated with rGRA7 and its mutants for 18 h, fixed, immunostained with antibodies for ASC (Alexa 488). Scale bar, 10 μm. The data are representative of five independent experiments with similar results (A and C-E). Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006126), licensed under a CC-BY license. Not internally tested by R&D Systems.

GRA7-I activated inflammasomes in an ASC-binding dependent manner.(A) Bacterially purified 6xHis-GRA7-I and its mutants were analyzed by Coomassie blue staining (left) or IB with alpha His (right). (B) BMDMs from PKC alpha +/+ and PKC alpha -/- (left) or BMDMs were transduced with lentivirus-shRNA-NS or lentivirus-shRNA-ASC (MOI = 100) with polybrene (8 μg/mL) (right) for 2 days, the cells were stimulated with rGRA7 (5 μg/ml) and its mutants for the indicated times and culture supernatants were harvested and analyzed for cytokine ELISA for IL-1 beta and IL-18. Data shown are the means ± SD of five experiments. Significant differences (*P < 0.05; ***P < 0.001) compared with PKC alpha +/+ or shRNA-NS. (C) IB analysis for IL-1 beta p17, IL-18 p18, or caspase-1 p10 in supernatants (SN), ASC, NLRP3, pro-IL-1 beta , pro-IL-18, or pro-caspase-1 in whole-cell lysates (WCL). Actin was used as a loading control. (D) IB analysis of lysates of BMDMs as in B and C solubilized with Triton X-100–containing buffer, followed by cross-linkage of insoluble fractions with disuccinimidyl suberate to capture ASC oligomers and analysis of those fractions (I + DSS) and soluble fractions (S) with antibody to ASC. Actin was used as a loading control. (E) Fluorescence confocal images showing formation of speck-like ASC pyroptosomes in BMDMs from PKC alpha +/+ and PKC alpha -/- mice were stimulated with rGRA7 and its mutants for 18 h, fixed, immunostained with antibodies for ASC (Alexa 488). Scale bar, 10 μm. The data are representative of five independent experiments with similar results (A and C-E). Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006126), licensed under a CC-BY license. Not internally tested by R&D Systems.

The B6 variant of NLRP1B is not cleaved by LF but can form an inflammasome in response to proteolysis.(A) The amino acid sequence of the first 244 residues of NLRP1BB6 was aligned to the homologous sequence of NLRP1B129. The arrow above the alignment indicates the LF-cleavage site in NLRP1B129. Asterisks indicate sites of amino acid identity. (B) For detection of NLRP1B expression, 293T cells were transfected with the indicated amounts of and empty vector (V) or plasmids encoding GFP-HA-NLRP1B129 or GFP-HA-NLRP1BB6 (construct schematics and the predicted molecular weight of each protein is depicted in the upper panel). Cells were treated overnight with anthrax lethal toxin protein (LeTx, 1μg/ml) 24h post-transfection, and then lysates were analyzed by immunoblotting (IB) with the indicated antibodies. For NLRP1 expression and cleavage, CASP1 and IL1B were omitted to prevent cell death and resulting apparent differences of expression. For blots probed with anti-HA (NLRP1B), the lysates were not boiled prior to loading to prevent aggregation and smearing of full-length and FIIND-processed NLRP1B on the immunoblot. To visualize the N-terminal processed form of NLRP1B, the lysates were boiled and resolved on a separate gel. (C) 293T Cells were transfected with the same amount of titrated NLRP1B encoding plasmid and treated as in B, but transfections also included plasmids encoding mouse CASP1 (200ng), IL-1 beta (200ng) and 200ng of empty vector. (D) For detection of NLRP1B expression, 293T cells were transfected for 36h with 250ng of plasmids encoding WT 129 or B6 NLRP1B or mutants engineered to express the TEV-protease site. Each plasmid was co-transfected with either 100ng of empty vector (V) or plasmids encoding TEV-protease (pTEV) or lethal factor protease (pLF), supplemented with 300ng empty vector (pMSCV). Cells were not treated with LeTx and lysates were analyzed by immunoblotting as in (B). (E) Cells were treated as in C, but with 8ng of plasmids encoding NLRP1B, al

SHP inhibits the signal 2 activation of NLRP3 inflammasome.(a,b) LPS-primed BMDMs were treated with fenofibrate (10, 20, 50 μM for 4 h), or (c,d) LPS-primed THP-1 cells were treated with recombinant macrophage-stimulating protein (MSP 10, 50, 100 ng ml−1 for 4 h), and then activated with ATP (5 mM) for 30 min, followed by IB analysis of IL-1 beta p17 or caspase-1 p10 in supernatants (SN), pro-IL-1 beta or pro-caspase-1 in whole-cell lysates (WCL), with actin as a loading control. Data are representative of three independent experiments (a,c). Supernatants were collected and subjected to ELISA for IL-1 beta , IL-18, TNF-alpha and IL-8. Data are the means±s.d. of values from four independent experiments (b,d). *P<0.05; **P<0.01; ***P<0.001, compared with control (two-tailed Student’s t-test). FF, fenofibrate. Image collected and cropped by CiteAb from the following publication (//www.nature.com/articles/ncomms7115), licensed under a CC-BY license. Not internally tested by R&D Systems.

NLRP1A is activated by N-terminal proteolysis.(A) The amino acid sequence of the first 244 residues of NLRP1AB6 was aligned to NLRP1B129 and NLRP1BB6. The arrow above the alignment indicates the LF-cleavage site in NLRP1B129. (B) 293T cells were transfected for 36h with 200ng empty vector (V) or plasmids pcDNA3.1-HA-NLRP1B129 or -NLRP1AB6-MYC (CMV promoter) along with 200ng mCASP1 and 200ng mIL-1 beta expression vectors. Cells were treated overnight with anthrax lethal toxin (LeTx, 1μg/ml) 24h post-transfection, and then lysates were analyzed by immunoblotting (IB) with the indicated antibodies. (C) 293T cells were transfected for 36h with plasmids encoding 400ng GFP-HA-NLRP1B129 or GFP-HA-NLRP1AB6 (under the control of the LTR promoter in pMSCV) or with mutants engineered to contain an N-terminal TEV protease site. Cells were also co-transfected with 100ng empty vector (V) or plasmids encoding TEV-protease (pTEV) or lethal factor protease (pLF), plus 300ng empty pMSCV. (D) To assess IL-1 beta cleavage, cells were transfected as in C, but with 8ng of GFP-HA-NLRP1B and co-transfected with vectors encoding 200ng mCASP1 and 200ng mIL-1 beta . For panels B-D, data shown are representative of at least three similar experiments. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006052), licensed under a CC-BY license. Not internally tested by R&D Systems.

POH1 inhibits inflammasome-induced pro-IL-1 beta processing. a-c BMDMs from Poh1 delta /+ and Poh1 delta / delta mice were primed with LPS for 12–14 h and then stimulated with ATP (0.5 h), nigericin (Nig, 0.5 h), poly(dA:dT) (5 h) or flagellin (5 h) as indicated, a IL-1 beta , b IL-6 and c TNF alpha levels in supernatants were analysed by ELISA. d-f BMDMs lentivirally transduced with control (Vector) or POH1 were stimulated as in a, d IL-1 beta , e IL-6 and f TNF alpha levels in supernatants were analysed by ELISA. g, h BMDMs g derived from Poh1 delta /+ and Poh1 delta / delta mice or h infected by indicated lentiviruses were treated as in a, the cell lysates (CL) and supernatants (SN) were collected and immunoblotted with the indicated antibodies. Similar results were obtained from three independent experiments. The results represent the mean ± s.d. of three independent sets of experiments. **p < 0.01, ***p < 0.001 (two-tailed Student’s t-test) Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/30315153), licensed under a CC-BY license. Not internally tested by R&D Systems.

Quercetin inhibits NLRP3 and AIM2 Inflammasomes.LPS (500 ng/ml)-primed BMDM were treated with the indicated flavonoids and concentrations or vehicle (DMSO 0.01%), then stimulated with (A) 5 mM ATP (B) 10 μM Nigericin (C) 130 μg/ml Alum or (D) 400 ng/ml Poly (dA:dT) 30 minutes after treatment. (A–D) IL-1 beta and (E) TNF-alpha concentration in the culture supernatant were measured by ELISA. (B,F,G) LPS-primed BMDM were stimulated with Nigericin treated with quercetin 30 minutes before secondary stimulation. Supernatants and Lysate of BMDM were analyzed by immunoblotting. Cells were stained with FLICA and Caspase-1 activation was determined by FLICA positivity. Data shown are representative of two or more independent experiments (means ± SD) *p < 0.05, **p < 0.01, ***p < 0.001. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/28148962), licensed under a CC-BY license. Not internally tested by R&D Systems.

GRA7-I-induced inflammasome activation was required for antimicrobial activity in MTB-infected macrophages.(A and B) BMDMs from PKC alpha +/+ and PKC alpha -/- mice (A) and BMDMs were transduced with lentivirus-shRNA-NS or lentivirus-shRNA-ASC for 2 days (B) infected with MTB (MOI = 1) for 4 h and then stimulated with rGRA7 (1, 5, 10 μg/ml) and its mutants for 18 h. IB analysis for IL-1 beta p17, IL-18 p18, or caspase-1 p10 in supernatants (SN), ASC, NLRP3, pro-IL-1 beta , pro-IL-18, or pro-caspase-1 in whole-cell lysates (WCL). Actin was used as a loading control. (C and D) Intracellular survival of MTB was assessed by CFU assay. BMDMs were infected with MTB for 4 h, followed by treatment with rGRA7, and then lysed to determine intracellular bacterial loads. The data are representative of five independent experiments with similar results (A and B). Data shown are the mean ± SD of five experiments (C and D). Significant differences (*P < 0.05; **P < 0.01; ***P < 0.001) compared with rVector. CFU, colony-forming units. ns, not significant. Image collected and cropped by CiteAb from the following publication (//dx.plos.org/10.1371/journal.ppat.1006126), licensed under a CC-BY license. Not internally tested by R&D Systems.

P. gingivalis and its OMVs differentially induce inflammasome signaling and pyroptosis in human macrophages. MDM were infected as before (2 h at MOI of 25:1, see Materials and Methods) with viable P. gingivalis (Pg), heat-killed-Pg (HK-Pg), OMVs, or heat-inactivated-OMVs (HI-OMVs) and (A) the activation of inflammasome components in the lysates was measured after 24 h by Western blot; beta -actin serves as a loading control throughout. Western blot data are representative of at least three independent experiments. (B) Production of IL-1 beta and IL-18 (by ELISA) from MDM was measured in the supernatant at 24 h. Data are mean ± SD from four independent experiments. Cell viability was determined by measuring extracellular LDH release and by 7-AAD exclusion (by flow-cytometry) at 24 h. 7-AAD is a membrane impermeant dye that is excluded from viable cells. The percent of 7-AAD positive (±SD) cells from three independent experiments was calculated relative to the untreated control. MDM treated with H2O2 (1 mM for 60 min) were included as positive control for 7-AAD. A representative histogram is shown. Cells were also treated where indicated with OMVs in the presence of KYT-1 and KYT-36 (10 μM of each). *p < 0.05: n.s, not significant. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/28824884), licensed under a CC-BY license. Not internally tested by R&D Systems.

Pro-IL-1 beta degradation is induced by the autophagy inhibitors chloroquine and bafilomycin A, and by the proteasome activator betulinic acid. (A) Chloroquine selectively attenuates IL-1 beta release from cardiac fibroblasts. The cells were incubated with LPS and/or 20 μM chloroquine phosphate as indicated for 18 h, then activated with 3 mM ATP for 60 min. IL-1 beta , TNF, MIP-2, and IL-6 were quantified in the conditioned media (n = 3). (B,C) Cardiac fibroblasts were incubated with LPS for 18 h with or without 20 μM chloroquine phosphate and pro-IL-1 beta quantified with western blot (n = 3). (D) Pro-IL-1 beta mRNA expression was quantified with qPCR (n = 3). (E,F) Cardiac fibroblasts were incubated with LPS for 20 h with or without 10% FCS or 20 μM chloroquine phosphate as indicated. The amount of total ubiquitinated protein was quantified with western blot (n = 4). (G,H) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 100 nM bafilomycin A1 for 20 h. Pro-IL-1 beta was quantified with western blot. (I,J) Cardiac fibroblasts were incubated with 10% FCS with or without 10 ng/mL LPS and/or 20 μM betulinic acid as indicated for 20 h. Pro-IL-1 beta was quantified with western blot. All columns are mean with SEM. *p < 0.05, **p < 0.01 (paired student t-test). Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/31244838), licensed under a CC-BY license. Not internally tested by R&D Systems.

P. gingivalis and its OMVs differentially induce inflammasome signaling and pyroptosis in murine macrophages. BMM were infected as before (2 h at MOI of 25:1, see Materials and Methods) with viable P. gingivalis (Pg), heat-killed-Pg (HK-Pg), OMVs, or heat-inactivated-OMVs (HI-OMVs) and (A) the activation of inflammasome components in the lysates [or supernatants (sup) where indicated] measured after 24 h by Western blot; beta -actin serves as a loading control throughout. Western blot data are representative of at least three independent experiments. (B) Production of IL-1 beta and IL-18 (by ELISA) from BMM was measured in the supernatant at 24 h. Data are mean ± SD from four independent experiments. Cell viability was determined by measuring extracellular LDH release and by 7-AAD exclusion (by flow-cytometry) at 24 h. 7-AAD is a membrane impermeant dye that is excluded from viable cells. The percent of 7-AAD positive (±SD) cells from three independent experiments was calculated relative to the untreated control. BMM treated with H2O2 (1 mM for 60 min) were included as positive control for 7-AAD. A representative histogram is shown. Cells were also treated where indicated with OMVs in the presence of KYT-1 and KYT-36 (10 μM of each). *p < 0.05. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/28824884), licensed under a CC-BY license. Not internally tested by R&D Systems.

Caspase-1 but not gasdermin-D processing depends on ASC oligomerization.(a) Western blot analysis for cleaved caspase-1 p20, IL-1 beta p17, and HMGB-1 in cell supernatants (SN) and pro-caspase-1, pro-IL-1 beta and HMGB-1 in cell lysates (lys) of LPS-primed immortalized Asc−/− BMDMs or Asc−/− BMDMs expressing ASCFL, ASCY59A or ASCE80R 3 h after poly(dA:dT) transfection (1 μg ml−1). (b) Release of LDH from LPS-primed immortalized Asc−/− BMDMs or Asc−/− BMDMs expressing ASCFL, ASCY59A or ASCE80R, or derived Casp1 knockouts 3 h after poly(dA:dT) transfection (1 μg ml−1). (c) Western blot analysis for processing of full-length gasdermin-D (GSDMDFL) into the active N-terminal fragment (GSDMDN-term) in combined lysates and supernatants (lys + SN) of LPS-primed immortalized Asc−/− BMDMs expressing ASCFL, ASCY59A or ASCE80R, or derived Casp1 knockouts 3 h after poly(dA:dT) transfection (1 μg ml−1). Arrowhead, gasdermin-DNterm p30; *a cross-reacting band. (d) Release of LDH from LPS-primed primary C57BL/6 WT (WT), Casp1−/−/Casp11−/− or Asc−/− BMDMs infected with S. Typhimurium (multiplicity of infection (MOI)=10, 1 h). (e) Western blot analysis for processing of full-length gasdermin-D (GSDMDFL) into the active N-terminal fragment (GSDMDN-term) in combined lysates and supernatants (lys+SN) of LPS-primed primary C57BL/6 WT (WT), Casp1−/−/Casp11−/− or Asc−/− BMDMs infected with S. Typhimurium (MOI=10, 1 h) or left uninfected. Arrowhead, gasdermin-DNterm p30; *a cross-reacting band; ** a S. Typhimurium-specific cross-reactive band. See also Supplementary Figs 8 and 9. Image collected and cropped by CiteAb from the following publication (//www.nature.com/articles/ncomms11929), licensed under a CC-BY license. Not internally tested by R&D Systems.

Nimbidiol treatment mitigated elevated pro-inflammatory cytokine and chemokine in the diabetic kidney. Representative images from (A) Semi-quantitative RT-PCR analyses showing gene expression and (B) western blot analyses showing protein expression of TNF-alpha , IL-1 beta and MCP-1 in the kidney. The bar diagrams represent the fold change from WT + Saline. Data are mean ± SD (n = 6/group). *p < 0.05 versus WT + Saline, WT + Nimbidiol and Akita + Nimbidiol, †p < 0.05 versus Akita + Saline. Image collected and cropped by CiteAb from the following publication (//pubmed.ncbi.nlm.nih.gov/36522378), licensed under a CC-BY license. Not internally tested by R&D Systems.

Loss IL-1 beta K133 ubiquitylation or the IL-1 beta K133:D129 salt bridge stabilizes IL-1 beta .a WT Il1b, Il1bK133A and Il1bD129A cDNAs were expressed in 293T cells and 48 h after transfection cells exposed to cycloheximide (CHX, 20 μg/ml) for up to 7 h. Cell lysates were immunoblotted for IL-1 beta levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of three experiments. b WT Il1b cDNA was transfected into 293T cells and after 48 h cells were cultured with MG132 (20 μM) as indicated for 15 min prior to cycloheximide (CHX, 20 μg/ml) treatment for up to 7 h. Immunoblots were performed on total cell lysates for IL-1 beta protein levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of two experiments. c 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta D129A and IL-1 beta D117A were co-transfected with Caspase-1 (250 or 500 ng) in the presence or absence of the pan-caspase inhibitor Z-VAD-fmk (50 μM) for 24 h. Immunoblots were performed on cell supernatants and total cell lysates for the indicated proteins. One of 2–3 experiments. d, e 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta S134A (phospho-ablating) and IL-1 beta S134E (phospho-mimetic) were co-transfected with 200 and 400 ng of d Caspase-1 or e Caspase-8, as indicated, for 24 h. IL-1 beta secretion was analyzed by ELISA. Data are the mean + S.D of three independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

Identification of new NLRP3 inflammasome activators. a Schematic of activator-suppressor screens for IL-1 beta release. b Effect of the top 3 activators (6 h treatment, this notation is used throughout the figure legends) on IL-1 beta release (nigericin; positive control). c Immunoblot of biologically active IL-1 beta (p17) and caspase-1 (Casp1; p20) following activator treatment (3 h). Data represent two independent experiments; full gel images are in Supplementary Figure 14. d Effect of gene knockout of NLRP3 inflammasome components on IL-1 beta release (6 h). Guide RNA corresponding to non-targeting negative controls (N.Ctl) or gene-specific targets are indicated. e Effect of activators on LDH release (1 h, 3 h, 6 h). f Effect of P2RX7 antagonist on IL-1 beta release (1 h A438079 pretreatment followed by 6 h activator treatment in the presence of A438079). Data are mean ± s.d.; n = 3 (b, f), 6 (e), or 8 (d) biological replicates from one independent experiment; data are representative of two independent experiments. P values were determined by two-way ANOVA followed by Tukey’s multiple testing (d, e). *P < 0.0001 compared to N.Ctl1 (d) or no activator control of each time point (e). THP-1 macrophages (b, c, e, f) or THP-1 macrophages expressing guide RNA (d) were used for measurements. Activators were used at 1 μM (niclosamide), 2.5 μM (AG-879), 1 μM (ouabain), 20 μM (nigericin), or 5 mM (ATP) (c–f) Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/30740538), licensed under a CC-BY license. Not internally tested by R&D Systems.

Niclosamide-biased suppressors prevent intracellular potassium loss. a Results of suppressor screens using nigericin (20 μM) or niclosamide (5 μM) as activators. Yellow circles indicate the top 60 validated activators. b, c Effect of niclosamide-biased suppressors on IL-1 beta release. d Effect of suppressors on LDH release. e Immunoblot of biologically active IL-1 beta (p17) and caspase-1 (Casp1; p20) after suppressor treatment. Data represent two independent experiments. Full gel images are shown in Supplementary Figure 14. f FACS analysis of mitochondrial ROS. Data represent three independent experiments. g Effect of suppressors on intracellular potassium level. h Rescue of IL-1 beta release by nigericin following suppressor treatment. Numbers (1–3) represent experimental scheme illustrated above the figure panel. Data are mean ± s.d.; n = 3 (b, c), 4 (g), 5 (h), or 6 (d) biological replicates from one independent experiment; data are representative of two independent experiments. P values were determined by two-way ANOVA followed by Tukey’s multiple testing. *P < 0.05, ***P < 0.001, ****P < 0.0001 as indicated. THP-1 macrophages (a–e, h) or THP-1 macrophages expressing NLRP3 guide RNA (f, g) were used for measurements. 1 h suppressor treatment (10 μM DPI, 10 μM LP44, or as indicated) was followed by 1 h (f) or 6 h (b–e, g–h) activator treatment (1 μM niclosamide, 20 μM nigericin, 1 μM ouabain, or 250 μg mL−1 silica) in the presence of suppressors (b–h). Nigericin rescue (h) (20 μM) for 1 h was performed following 6 h niclosamide treatment Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/30740538), licensed under a CC-BY license. Not internally tested by R&D Systems.

Cleavage of NLRP1B is sufficient to promote inflammasome activation.A) 293T cells were transfected with WT, TEV-site2 or TEV-site1 GFP-HA-NLRP1B along with empty vector, TEV expression vector, or a LF expression plasmids. In all conditions cells were also co-transfected with Casp1 and Il1b expression vectors. Cleavage of GFP-HA-NLRP1B and IL-1 beta was determined 24 h post transfection. B) Immortalized B6 macrophages were transduced with a retrovirus encoding the indicated GFP-HA-NLRP1B form followed by a sequential transduction with a TEV-expression retrovirus co-expressing THY1.1. Percent transduction was determined by measuring expression of the respective retroviral integration markers (GFP and anti-THY1.1-PE-Cy7) by flow cytometry, and are expressed in relative fluorescent units (RFU). The numbers within each quadrant represent the percentage of live cells within the respective quadrant. C) RAW264.7 macrophages were transduced with GFP-HA-NLRP1B and a Tet-On construct expressing the indicated gene. Cells were treated with 5 µg/ml doxycycline for 20 h and supernatants were assayed for LDH release. D) 293T cells were transfected with empty vector, FL-NLRP1B-HA, the truncated NLRP1B-HA, or delta LRR HA-NLRP1B, along with Casp1 and Il1b and assayed by immunoblotting. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/23818853), licensed under a CC-BY license. Not internally tested by R&D Systems.

LPS-induced IL-1 beta is increased in Il1bK133R/K133R mice in vivo.a BMDMs derived from mice of the indicated genotypes were treated with LPS (100 ng/ml) for 3 h, followed by proteasome inhibition (PS341, 10 μM) for an additional 3 h. Biotin conjugated IL-1 beta antibody was used to purify IL-1 beta from cell lysates and its modification analyzed using the indicated ubiquitin (Ub) chain-specific antibodies. Cell lysates from the same experiment were run in triplicate with roman numerals on the bottom right of the blots indicating the membrane probed. One of two independent experiments. b BMDMs were primed with LPS (100 ng/ml) for 3 h followed by treatment for a further 3 h with PS341 (10 μM). Cells were subsequently lysed in buffer containing either PS341 (10 μM), or PS341 and PR619 (10 μM), as indicated. Recombinant caspase-1 (5 Units) was added and cell lysates incubated at 37 °C for 80 min. Subsequently, ubiquitylated proteins were purified by Tandem Ubiquitin Binding Entities (TUBEs) and analyzed by immunoblot. One of two independent experiments. c–f WT and Il1bK133R/K133R mice were injected intra-peritoneally with 100 μg of LPS. After 2 h serum and peritoneal fluid was harvested and analyzed by ELISA for levels of c IL-1 beta , d TNF, and e IL-6. Data are mean ± SEM, symbols represent individual mice, n ≥ 19 mice/genotype from three pooled independent experiments for c, d and n ≥ 14 for e from 2 to 3 pooled experiments. P-values were calculated using an unpaired two-tailed t-test for comparisons between genotypes. f Peritoneal fluid was analyzed by immunoblot for the indicated proteins. Each lane represents an individual mouse. n = 5–6 mice per genotype. One of two independent experiments (analysis of nine additional WT and 19 Il1bK133R/K133R mice are shown in Supplementary Fig. 7b). Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

Loss IL-1 beta K133 ubiquitylation or the IL-1 beta K133:D129 salt bridge stabilizes IL-1 beta .a WT Il1b, Il1bK133A and Il1bD129A cDNAs were expressed in 293T cells and 48 h after transfection cells exposed to cycloheximide (CHX, 20 μg/ml) for up to 7 h. Cell lysates were immunoblotted for IL-1 beta levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of three experiments. b WT Il1b cDNA was transfected into 293T cells and after 48 h cells were cultured with MG132 (20 μM) as indicated for 15 min prior to cycloheximide (CHX, 20 μg/ml) treatment for up to 7 h. Immunoblots were performed on total cell lysates for IL-1 beta protein levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of two experiments. c 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta D129A and IL-1 beta D117A were co-transfected with Caspase-1 (250 or 500 ng) in the presence or absence of the pan-caspase inhibitor Z-VAD-fmk (50 μM) for 24 h. Immunoblots were performed on cell supernatants and total cell lysates for the indicated proteins. One of 2–3 experiments. d, e 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta S134A (phospho-ablating) and IL-1 beta S134E (phospho-mimetic) were co-transfected with 200 and 400 ng of d Caspase-1 or e Caspase-8, as indicated, for 24 h. IL-1 beta secretion was analyzed by ELISA. Data are the mean + S.D of three independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

PEG-Arg1 treatment reduced retinal inflammation and reversed MΦ/microglia soma enlargement. (A,C) Representative Western blots of the pro-inflammatory cytokines IL-1 beta and TNF- alpha in retinal protein lysates from PEG-A1-treated db/db mice with quantification (B,D, respectively) compared with the PEG-treated db/db controls (n = 6/group, * p < 0.05, ** p < 0.01). (E) Retinal flat-mounts imaged at the level of the superficial vascular plexus labeled with isolectin B4 (vasculature) and Iba-1 (MΦ/microglia) with Iba-1 in the enlarged inset (boxed in white) showing exceptionally enlarged perivascular MΦ/microglia. (F) Quantification of MΦ/microglia soma size, demonstrating significant size reductions in the db/db mice treated with PEG-Arg1 compared with the vehicle-treated controls (n = 3 mice/group, * p < 0.05). Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36139465), licensed under a CC-BY license. Not internally tested by R&D Systems.

ATP and nigericin can augment proteasomal-mediated IL-1 beta degradation.a BMDMs were primed with Lipopolysaccharide (LPS, 50 ng/ml) for 3 h and stimulated with ATP (5 mM) and Nigericin (10 μM) for up to 2 h. Total cell lysates were analyzed by immunoblot. One of three experiments. b, cCaspase-1−/− BMDMs were primed with LPS (50 ng/ml) for 3 h, and in the last 30 min of priming treated with MG132 (20 μM), as indicated. Cells were treated with b ATP (5 mM) and c Nigericin (10 μM) for up to 90 min. Immunoblots were performed on total cell lysates to detect the specified proteins. One of three experiments. d WT, Nlrp3−/−, Asc−/− and Caspase-1−/− BMDMs were primed with LPS (50 ng/ml) for 3 h and stimulated with ATP for 20 min. Ubiquitylated (Ub.) proteins were purified from cell lysates by Tandem Ubiquitin Binding Entities (TUBEs). Immunoblots were performed on cell lysates and TUBE isolated ubiquitylated proteins for the indicated proteins. One of two experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

Loss of K133 ubiquitylation in mice stabilizes IL-1 beta and increases IL-1 beta activation.a. WT and Il1bK133R/K133R BMDMs were primed with Lipopolysaccharide (LPS, 50 ng/ml) or Pam3Cys-Ser-(Lys)4 (Pam3Cys, 500 ng/ml) for 3 h with Q-VD-OPh (20 μM) added in the last 30 min of priming. Cells were then treated with the protein synthesis inhibitor cycloheximide (CHX, 20 μg/ml) for up to 6 h. Total cell lysates were analyzed for the indicated proteins by immunoblot. One of four experiments. b, c WT and Il1bK133R/K133R BMDMs were primed with LPS (50 ng/ml) for 3 h and then treated with ATP (5 mM) and Nigericin (10 μM) for the times indicated in Opti-MEM media. b IL-1 beta and c TNF levels were measured in cell supernatants by ELISA. Data are the mean + SD of two independent experiments combined using three mice of each genotype. d WT and Il1bK133R/K133R BMDMs were primed with LPS (50 ng/ml) for 3 h and treated with ATP (5 mM) and Nigericin (10 μM) for up to 60 min in Opti-MEM media. Cell supernatants and lysates were analyzed by immunoblot for the indicated proteins. One of three experiments. e WT and Il1bK133R/K133R neutrophils sorted from bone marrow were primed with IFN gamma (50 ng/ml, 1 h) and then treated with LPS (100 ng/ml) for a further 3 h. Cells were then stimulated with Nigericin (10 μM) for up to 6 h, as indicated. Cell supernatants and lysates were analyzed by immunoblot for the specified proteins. One of three experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

Co-localization of inflammasome components&production of active interleukin-1 beta (IL-1 beta )&IL-18 (IL-18) in the XII. nucleus. (D) Representative WB images of IL-1 beta &IL-18 proteins in of the hypoglossal nuclei after unilateral axotomy of corresponding brain nerve. Arrows indicate pro-forms, arrowheads show active cytokines. Image collected & cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33328988), licensed under a CC-BY license. Not internally tested by R&D Systems.

EhaF inhibits innate immune responses to EHEC infection.a–c, e–l Secretion of indicated cytokines by C57BL/6 or Tlr4−/− BMDMs infected with EHEC, the indicated isogenic mutant, or complement strains at an MOI of 50 (MOI of 50 for all infections hereafter unless otherwise indicated) or treated with 0.5 μg/ml LPS or 0.5 μg/ml Pam3CSK4 for 6 h (b, c, f, g, h, j, k) or 18 h (a, e, i, l). d Immunoblot for pro IL-1 beta and beta -actin in the lysates of BMDMs infected with EHEC or delta OI-14-15 for the indicated times. m, n Fold increase in the expression of indicated genes in C57BL/6 or Tlr4−/− BMDMs infected with the indicated E. coli strains or treated with 0.5 μg/ml Pam3CSK4 relative to uninfected BMDMs (medium) as determined by real time quantitative PCR at 2 h post-stimulation. o, p Secretion of indicated cytokines by Caco2 cells infected with the indicated (on x-axis) MOI of EHEC or delta EhaF for 24 h. a–c, e–p, Data (mean ± SEM) were from three independent experiments and each dot is a mean of each experiment’s technical replicates. d Immunoblot from one experiment representative of three independent experiments is shown. Statistical significance was assessed using one-way ANOVA (a–c, e–i) or two-way ANOVA (j–p) followed by Tukey’s post-test. p < 0.05 indicated statistical significance. Multiplicity adjusted p values are presented. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37041208), licensed under a CC-BY license. Not internally tested by R&D Systems.

Loss IL-1 beta K133 ubiquitylation or the IL-1 beta K133:D129 salt bridge stabilizes IL-1 beta .a WT Il1b, Il1bK133A and Il1bD129A cDNAs were expressed in 293T cells and 48 h after transfection cells exposed to cycloheximide (CHX, 20 μg/ml) for up to 7 h. Cell lysates were immunoblotted for IL-1 beta levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of three experiments. b WT Il1b cDNA was transfected into 293T cells and after 48 h cells were cultured with MG132 (20 μM) as indicated for 15 min prior to cycloheximide (CHX, 20 μg/ml) treatment for up to 7 h. Immunoblots were performed on total cell lysates for IL-1 beta protein levels. The arrow indicates pro-IL-1 beta . Actin is included as a loading control. One of two experiments. c 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta D129A and IL-1 beta D117A were co-transfected with Caspase-1 (250 or 500 ng) in the presence or absence of the pan-caspase inhibitor Z-VAD-fmk (50 μM) for 24 h. Immunoblots were performed on cell supernatants and total cell lysates for the indicated proteins. One of 2–3 experiments. d, e 293T cells expressing WT IL-1 beta , IL-1 beta K133R, IL-1 beta K133A, IL-1 beta S134A (phospho-ablating) and IL-1 beta S134E (phospho-mimetic) were co-transfected with 200 and 400 ng of d Caspase-1 or e Caspase-8, as indicated, for 24 h. IL-1 beta secretion was analyzed by ELISA. Data are the mean + S.D of three independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/33976225), licensed under a CC-BY license. Not internally tested by R&D Systems.

Elevated retinal inflammation and MΦ/microglia soma enlargement in db/db mice. (A) Representative Western blots of IL-1 beta in retinal protein lysates with quantification in (B), demonstrating significant increases in IL-1 beta (n = 10) expression in db/db mice compared with the lean DB/+ controls. (C) Retinal flat-mounts imaged at the level of the superficial vascular plexus and labeled with isolectin B4 (vasculature) and Iba-1 (MΦ/microglia). White arrows point to the perivascular macrophages with Iba-1 in the enlarged inset (boxed in white) showing exceptionally enlarged perivascular MΦ/microglia. (D) Quantification of MΦ/microglia soma size, demonstrating a significant size increase in db/db mouse retinas compared with the lean controls (n = 3 mice/genotype, * p < 0.05). Data are presented as the mean ± SEM. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36139465), licensed under a CC-BY license. Not internally tested by R&D Systems.

Rac1 haploinsufficiency rescues arthritis & inflammatory signaling in Pggt1b delta / delta mice. d WBs showing levels of mature Il-1 beta & caspase-1 in supernatants (Sup), & pro-Il-1 beta & pro-caspase-1 in lysates (Lys) of LPS (200 ng/ml) stimulated BM macrophages; tubulin in lysates was used as a loading control. The antibiotic nigericin (28 mM) was used as a positive control for inflammasome-mediated caspase-1 activation & Il-1 beta production. Image collected & cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/31484924), licensed under a CC-BY license. Not internally tested by R&D Systems.

Examining the role of microglia-derived IL-1 beta in promoting astrocyte TIMP-1 expression. A. Determination of IL-1 beta in LPS-activated MG-CM. Microglial cultures were treated with LPS for 2 days, then subject to either six rounds of IL-1 beta immunodepletion, or mock depletion, as described in Materials and Methods, and samples analyzed for the presence of IL-1 beta . Note that IL-1 beta was detected in the LPS-activated MG-CM before, but not after the IL-1 beta immunodepletion, demonstrating the effectiveness of the immunodepletion strategy. B and C. The effect of removing IL-1 beta from LPS-activated MG-CM on astrocyte TIMP-1 production. Pure astrocyte cultures received either: LPS, microglia + LPS, LPS-activated MG-CM (mock depleted) or LPS-activated MG-CM depleted of IL-1 beta . Note that the presence of LPS-activated microglia or LPS-activated MG-CM strongly induced TIMP-1 expression in astrocytes, but this effect was markedly attenuated after IL-1 beta removal from the MG-CM. * p < 0.02. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/21631912), licensed under a CC-BY license. Not internally tested by R&D Systems.

AGER is required for caspase-11 inflammasome activation. (A–C) Analysis of cytotoxicity (A), IL-1 beta release (B), and IL-18 release (C) in LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h) in the absence or presence of FPS-ZM1 (100 nM, 500 nM, and 1 μM). n = 3, data expressed as means ± SD of three independent experiments, *P < 0.05 vs. HHD group, t test. (D–F) Analysis of cytotoxicity (D), IL-1 beta release (E), and IL-18 release (F) in indicated LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h), LPS electroporation (LPSe; 1 μg, 16 h), or E. coli infection (MOI = 25, 16 h). n = 3, data expressed as means ± SD of three independent experiments, *P < 0.05 vs. WT group, t test. (G) Western blot analysis of indicated proteins in the supernatant (SN) or cell lysate in LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h) or LPS electroporation (LPSe; 1 μg, 16 h). Western blot data represent two independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/31440260), licensed under a CC-BY license. Not internally tested by R&D Systems.

GSDMD is required for nuclear DAMP complex-induced pyroptosis. (A) Western blot analysis of indicated proteins in the supernatant (SN) or cell lysate in indicated LPS-primed BMDMs after HHD treatment (500 ng/mL, 16 h). (B–G) Analysis of cytotoxicity (B), IL-1 beta (C), IL-18 (D), TNF (E), IL-6 (F), and IL-12 (G) release in indicated LPS-primed BMDMs after HHD treatment (500 ng/mL, 16 h) in the absence or presence of the overexpression of GSDMD WT or D275A cDNA. n = 3, data expressed as means ± SD of three independent experiments, *P < 0.05, t test. Western blot data represent two independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/31440260), licensed under a CC-BY license. Not internally tested by R&D Systems.

Charged liposomes activate the NLRP3 inflammasome to induce IL-1 beta secretion ELISA for IL-1 beta from the supernatants of (a) LPS-primed wild-type BMDMs or (b) PMA-primed THP1 cells that were stimulated with either the indicated liposomes (30 μg/ml for BMDMs and 50 μg/ml for THP1 cells) or alum (250 μg/ml for BMDMs and 500 μg/ml for THP1 cells). (c) Immunoblots of procaspase-1, activated caspase-1 (p10), pro-IL-1 beta and cleaved IL-1 beta (p17) in the culture supernatants (Sup) and cell lysates (Lys) from LPS-primed BMDMs after stimulation with indicated liposomes or alum. (d) IL-1 beta from supernatants of LPS-primed BMDMs that were pretreated with caspase-1 inhibitor (z-YVAD-fmk, 10 μM) for 45 min followed by stimulations with indicated liposomes or alum. (e) ELISA for IL-1 beta from the supernatants of LPS-primed or unprimed wild-type BMDMs that were stimulated with indicated liposomes (30 μg/ml) or alum (250 μg/ml). (f) The IL-1 beta levels from the supernatants of LPS-primed immortalized mouse macrophages from wild-type, Nlrp3−/−, Asc−/−, Caspase-1−/− or Nlrc4−/− mice that were stimulated with liposomes (70 μg/ml). (g) ELISA for IL-1 beta from the supernatants of LPS-primed wild-type BMDMs that were cultured in 150 mM of KCl or NaCl followed by stimulation with liposomes or alum. Data in a, b and d–g are shown as mean ± s.d., and all data are representative of at least three independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/23511475), licensed under a CC-BY license. Not internally tested by R&D Systems.

AGER-mediated lipid peroxidation promotes caspase-11 inflammasome activation. (A–C) Analysis of lipoxygenase activity (A), MDA level (B), and 4-HNE level (C) in indicated LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h) or LPS electroporation (LPSe; 1 μg, 16 h) in the absence or presence of FPS-ZM1 (1 μM). n = 3, data expressed as means ± SD of three independent experiments, *P < 0.05, t test. (D–F) Analysis of cytotoxicity (D), IL-1 beta release (E), and IL-18 release (F) in indicated LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h) or LPS electroporation (LPSe; 1 μg, 16 h) in the absence or presence of zileuton (5 μM). n = 3, data expressed as means ± SD of three independent experiments, *P < 0.05, t test. (G) Western blot analysis of indicated proteins in the supernatant (SN) or cell lysate in LPS-primed BMDMs after HHD treatment (500 ng/ml, 16 h) or LPS electroporation (LPSe; 1 μg, 16 h). Western blot data represent two independent experiments. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/31440260), licensed under a CC-BY license. Not internally tested by R&D Systems.

IL-1 beta promotes priming and activation of the NLRP3 inflammasome in HUVEC. The expression of the NLRP3 inflammasome components (A) NLRP3 and (B) pro-IL-1 beta was determined by Western blot in total lysates from HUVEC stimulated for 18-24 h with IL-1 beta . Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 4-5; *p<0.05 vs. untreated cells by unpaired t-test). (C) The NLRP3 inflammasome activation was determined by the observation of ASC specks by indirect immunofluorescence after treatment with IL-1 beta alone or in presence of MCC 950 (1 µM). The percentage of ASC specks per cell culture field was quantified under a fluorescence microscope (n= 3-4; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). (D) Confocal representative photographs (630X magnification) where white arrowheads show the location of toroidal-shaped ASC specks as detected by a specific antibody against ASC (red), while cell nuclei were counterstained with DAPI (blue). (E) IL-1 beta , the final product of the NLRP3 inflammasome activation was measured in the supernatant of treated cells by ELISA (n= 4-5; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cultures levels by two-way ANOVA and Tukey post-hoc test). HUVEC were treated with 2.5 ng/ml IL-1 beta in all experiments. All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

Manoalide inhibits the NLRP3 inflammasome activation. (A-C) BMDMs were primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin for 15 min (A) ELISA of mature IL-1 beta in supernatant from BMDMs. (B) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (C) LDH release in the supernatant from BMDMs. (D) ELISA of mature IL-1 beta and (E) Western blots of SN and Input from BMDMs primed with LPS and stimulated with nigericin, MSU and ATP with or without 500 nM manoalide. (F-H) BMDMs were primed with Pam3K for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with cytosolic LPS (cLPS) for 16 h. (F) Production of mature IL-1 beta in supernatant from BMDMs. (G) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (H) LDH release in the supernatant from BMDMs. (I) ELISA of mature human IL-1 beta in supernatant from PBMCs primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin. Data are derived from three independent experiments (A,C,D,F,H,I) and displayed as mean and SEM (n = 6) or represent three independent experiments (B,E,G). Statistically significant difference was calculated by unpaired Student’s t-test: ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35252186), licensed under a CC-BY license. Not internally tested by R&D Systems.

The activation of NLRP3 by IL-1 beta is mediated by NF-kappa B. The expression of (A) phosphorylated p65 (p-p65) and total p65 (p65), used as a marker of NF-kappa B activation, and the NLRP3 inflammasome components (B) NLRP3, (C) pro-IL-1 beta and (D) mature IL-1 beta levels was determined by Western blot in total lysates from HUVEC stimulated for 18 h with IL-1 beta in presence or absence of PDTC (100 µM). Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 5-7; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

PL dose-dependently inhibits nigericin-induced NLRP3 inflammasome activation. (A) Cell viability of PL (1–40 μM) in peritoneal macrophages. (B–D) ELISA of IL-1 beta (B), TNF-alpha (C), and release of LDH (D) in supernatants from LPS-primed mouse peritoneal macrophages treated with 1–10 μM PL and stimulated with nigericin. (E) Immunoblot of supernatants or cell lysates from LPS-primed mouse peritoneal macrophages treated with 1–10 μM PL and stimulated with nigericin. All data were representative of three independent experiments. Values shown are mean ± SD. For statistical analysis, A–D were analyzed using one-way ANOVA and the Bonferroni test. *p < 0.05; **p < 0.01; ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35095532), licensed under a CC-BY license. Not internally tested by R&D Systems.

The activation of NLRP3 by IL-1 beta is mediated by NF-kappa B. The expression of (A) phosphorylated p65 (p-p65) and total p65 (p65), used as a marker of NF-kappa B activation, and the NLRP3 inflammasome components (B) NLRP3, (C) pro-IL-1 beta and (D) mature IL-1 beta levels was determined by Western blot in total lysates from HUVEC stimulated for 18 h with IL-1 beta in presence or absence of PDTC (100 µM). Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 5-7; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

Manoalide has no effects on the activation of AIM2 inflammasome, IPAF inflammasome or Pyrin inflammasome. (A) ELISA of mature IL-1 beta and (B) Western blots of SN and Input from BMDMs primed with LPS and stimulated with nigericin, Poly (A:T) or salmonella (MOI = 10) with or without 500 nM manoalide. (C) ELISA of mature IL-1 beta in SN from BMDMs primed with LPS and then were pretreated with 500 nM manoalide before stimulation with C3 toxin. Data are derived from three independent experiments (A,C) and displayed as mean and SEM (n = 6) or represent three independent experiments (B). Statistically significant difference was calculated by unpaired Student’s t-test: ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35252186), licensed under a CC-BY license. Not internally tested by R&D Systems.

149-01 does not affect the activation of AIM2, NLRC4, or Pyrin inflammasomes. (A–C) BMDMs were first primed with LPS, then treated with or without 149-01 (600 nM) for 30 min, lastly stimulated with nigericin, poly (A/T), Salmonella or C3 toxin. (A,C) IL-1 beta releases in supernatants were detected by ELISA. (B) Active IL-1 beta and p20 in supernatants and pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates were measured by western blot. Data are obtained from three independent experiments, each with two biological replicates and are expressed as mean ± s. e.m (n = 6) (A,C), or are representative of three independent experiments (B). One-way ANOVA was applied to calculate statistical significance: ***p <.001, NS, not significant. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35250572), licensed under a CC-BY license. Not internally tested by R&D Systems.

Manoalide inhibits the NLRP3 inflammasome activation. (A-C) BMDMs were primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin for 15 min (A) ELISA of mature IL-1 beta in supernatant from BMDMs. (B) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (C) LDH release in the supernatant from BMDMs. (D) ELISA of mature IL-1 beta and (E) Western blots of SN and Input from BMDMs primed with LPS and stimulated with nigericin, MSU and ATP with or without 500 nM manoalide. (F-H) BMDMs were primed with Pam3K for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with cytosolic LPS (cLPS) for 16 h. (F) Production of mature IL-1 beta in supernatant from BMDMs. (G) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (H) LDH release in the supernatant from BMDMs. (I) ELISA of mature human IL-1 beta in supernatant from PBMCs primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin. Data are derived from three independent experiments (A,C,D,F,H,I) and displayed as mean and SEM (n = 6) or represent three independent experiments (B,E,G). Statistically significant difference was calculated by unpaired Student’s t-test: ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35252186), licensed under a CC-BY license. Not internally tested by R&D Systems.

Identification of 149-01 as a highly potent inhibitor for NLRP3 inflammasome. (A) 149-01 structure. (B–F) BMDMs were first primed with LPS for 3 h, then pretreated with indicated doses of 149-01 (200-600 nM) for 30 min, lastly stimulated with nigericin. (B) IL-1 beta releases in supernatants were detected by ELISA. (C) Active IL-1 beta and p20 (cleaved caspase-1) in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates (Input) were measured by western blot. (D) The release of LDH in supernatants. (E) IL-6 and (F) TNF-alpha secretion levels in supernatants were determined by ELISA. (G,H) BMDMs were first primed with LPS, then treated with or without 149-01 (600 nM) for 30 min, lastly stimulated with nigericin, ATP or MSU. (G) IL-1 beta releases in supernatants were detected by ELISA. (H) Active IL-1 beta and p20 in supernatants and pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates were measured by western blot. (I,J) PBMCs were first primed with LPS for 3 h, then pretreated with indicated doses of 149-01 for 30 min, lastly stimulated with nigericin. (I) IL-1 beta and (J) TNF-alpha secretion levels in supernatants were determined by ELISA. Data are obtained from three independent experiments, each with two biological replicates and are expressed as mean ± s. e.m (n = 6) (B,D–G,I,J), or are representative of three independent experiments (C,H). One-way ANOVA was applied to calculate statistical significance: ***p <.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35250572), licensed under a CC-BY license. Not internally tested by R&D Systems.

FA inhibits I/R-induced myocardial injury by inhibiting NLRP3 inflammasome activation. (A–F) Expression of NLRP3, pro-caspase-1, caspase-1, pro-IL-1 beta , and IL-1 beta in the heart tissue of WT mice was detected by western blotting. (G) HE staining of heart tissue sections in WT mice and Nlrp3−/−mice. (H–K) Expression of IL-1 beta , caspase-1, and NLRP3 in heart tissues of WT mice and Nlrp3−/− mice in each experimental group, detected by western blotting. (L–O) Expression of CK-MB, LDH, troponin-1, and NT-proBNP in the serum of each experimental group in WT mice and Nlrp3−/−mice, determined by ELISA. Data are expressed as the means ± sd from three independent experiments or are representative of three independent experiments. **p < 0.01, ***p < 0.001; ns indicates no significance. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35496295), licensed under a CC-BY license. Not internally tested by R&D Systems.

FA inhibits I/R-induced myocardial injury by inhibiting NLRP3 inflammasome activation. (A–F) Expression of NLRP3, pro-caspase-1, caspase-1, pro-IL-1 beta , and IL-1 beta in the heart tissue of WT mice was detected by western blotting. (G) HE staining of heart tissue sections in WT mice and Nlrp3−/−mice. (H–K) Expression of IL-1 beta , caspase-1, and NLRP3 in heart tissues of WT mice and Nlrp3−/− mice in each experimental group, detected by western blotting. (L–O) Expression of CK-MB, LDH, troponin-1, and NT-proBNP in the serum of each experimental group in WT mice and Nlrp3−/−mice, determined by ELISA. Data are expressed as the means ± sd from three independent experiments or are representative of three independent experiments. **p < 0.01, ***p < 0.001; ns indicates no significance. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35496295), licensed under a CC-BY license. Not internally tested by R&D Systems.

The activation of NLRP3 by IL-1 beta is mediated by NF-kappa B. The expression of (A) phosphorylated p65 (p-p65) and total p65 (p65), used as a marker of NF-kappa B activation, and the NLRP3 inflammasome components (B) NLRP3, (C) pro-IL-1 beta and (D) mature IL-1 beta levels was determined by Western blot in total lysates from HUVEC stimulated for 18 h with IL-1 beta in presence or absence of PDTC (100 µM). Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 5-7; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

PL inhibits ATP or MSU-induced NLRP3 inflammasome activation. (A–C) ELISA of IL-1 beta (A), TNF-alpha (B), and release of LDH (C) in supernatants from LPS-primed mouse peritoneal macrophages treated with 10 μM PL or DMSO and stimulated with ATP or MSU. (D) Immunoblot of supernatants or cell lysates from LPS-primed mouse peritoneal macrophages treated with 10 μM PL and stimulated with indicated stimuli. All data were representative of three independent experiments. Values shown are mean ± SD. For statistical analysis, A, B, and C were analyzed using two-way ANOVA and the Bonferroni test; **p < 0.01; ***p < 0.001; ****p < 0.0001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35095532), licensed under a CC-BY license. Not internally tested by R&D Systems.

The inflammasome NLRP3 is implicated in the pro-senescence effect of IL-1 beta in endothelial human cells. HUVEC were treated with IL-1 beta (2.5 ng/ml) alone or in presence of the NLRP3 inflammasome inhibitor MCC 950 (1 μM) for 18-24 h. (A) SA-beta -Gal positive stained cells were quantified by manual scoring by a blind observer after the indicated treatments. (B) Representative phase-contrast images are shown SA-beta -Gal positive cells stained in blue (black arrowheads). Data are expressed as percentage of the number of senescent cells stained in non-treated cells (n= 5-7; *p<0.05 vs. untreated cells; #p<0.05 vs IL-1 beta -treated cultures levels by two-way ANOVA and Tukey post-hoc test). (C) The expression of p21 was determined by Western blot in total lysates from HUVEC. A representative blot is shown on top of each graph, where beta -Actin was employed as loading control (n= 6-8; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). All data are shown as mean ± SEM. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

IL-1 beta promotes priming and activation of the NLRP3 inflammasome in HUVEC. The expression of the NLRP3 inflammasome components (A) NLRP3 and (B) pro-IL-1 beta was determined by Western blot in total lysates from HUVEC stimulated for 18-24 h with IL-1 beta . Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 4-5; *p<0.05 vs. untreated cells by unpaired t-test). (C) The NLRP3 inflammasome activation was determined by the observation of ASC specks by indirect immunofluorescence after treatment with IL-1 beta alone or in presence of MCC 950 (1 µM). The percentage of ASC specks per cell culture field was quantified under a fluorescence microscope (n= 3-4; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). (D) Confocal representative photographs (630X magnification) where white arrowheads show the location of toroidal-shaped ASC specks as detected by a specific antibody against ASC (red), while cell nuclei were counterstained with DAPI (blue). (E) IL-1 beta , the final product of the NLRP3 inflammasome activation was measured in the supernatant of treated cells by ELISA (n= 4-5; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cultures levels by two-way ANOVA and Tukey post-hoc test). HUVEC were treated with 2.5 ng/ml IL-1 beta in all experiments. All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

Identification of 149-01 as a highly potent inhibitor for NLRP3 inflammasome. (A) 149-01 structure. (B–F) BMDMs were first primed with LPS for 3 h, then pretreated with indicated doses of 149-01 (200-600 nM) for 30 min, lastly stimulated with nigericin. (B) IL-1 beta releases in supernatants were detected by ELISA. (C) Active IL-1 beta and p20 (cleaved caspase-1) in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates (Input) were measured by western blot. (D) The release of LDH in supernatants. (E) IL-6 and (F) TNF-alpha secretion levels in supernatants were determined by ELISA. (G,H) BMDMs were first primed with LPS, then treated with or without 149-01 (600 nM) for 30 min, lastly stimulated with nigericin, ATP or MSU. (G) IL-1 beta releases in supernatants were detected by ELISA. (H) Active IL-1 beta and p20 in supernatants and pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates were measured by western blot. (I,J) PBMCs were first primed with LPS for 3 h, then pretreated with indicated doses of 149-01 for 30 min, lastly stimulated with nigericin. (I) IL-1 beta and (J) TNF-alpha secretion levels in supernatants were determined by ELISA. Data are obtained from three independent experiments, each with two biological replicates and are expressed as mean ± s. e.m (n = 6) (B,D–G,I,J), or are representative of three independent experiments (C,H). One-way ANOVA was applied to calculate statistical significance: ***p <.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35250572), licensed under a CC-BY license. Not internally tested by R&D Systems.

Protein expression of inflammasome NLRP3 in PBMCs in the presence of Convulxin. Western blot of NLRP3, Pro-Caspase-1, Active Caspase-1, IL-1 beta , and beta -actin (control) using 1 × 107 PBMCs stimulated RPMI (negative control), LPS (1 μg/mL; positive control) or CVX (5 and 10 μg/mL) for 3 h. (A) Figure representative of one experiment of three independent experiments. Relative immunoreactivity analysis (fold of beta -actin) of the western blots from NLRP3, Pro-Caspase-1, Active Caspase-1, IL-1 beta (B). IL-1 beta release was also quantified in PBMCs pretreated with N-tosyl-l-phenylalanine chloromethyl ketone (TPCK) (30 µM), Ac-YVAD-cmk (50 µM) (C), MCC950 (10 µM) (D) for 30 min and after incubated with RPMI (negative control) or CVX (10 µg/mL). IL-1 beta was also quantified in PBMCs pretreated with Apocynin (300 µM) and Rotenone (10 µM) for 30 min and after incubated with RPMI (negative control) or CVX (10 µg/mL) (E). Results were expressed in pg/mL of released cytokines and represent the mean ± S.E.M of 3 donors. Values are mean S.E.M. from 3 donors. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001 compared to negative control (data were presented with ANOVA followed by Dunnett post-test). Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35304541), licensed under a CC-BY license. Not internally tested by R&D Systems.

149-01 targets Cys409 of NLRP3. HEK-293T cells transfected with Flag-tagged NACHT (A), LRR (B), PYD (C), or NACHT (C409A) (D) were lysed and the cell lysates incubated overnight with or without 149-01 (80 μM) before pronase digestion were detected by western blot. (E) The interactions between NEK7 and WT or mutant NLRP3 in HEK-293T cells treated with or without 149-01 (3 μM) were evaluated by IP and western blot. (F,G)Nlrp3−/− BMDMs reconstituted with mouse WT or mutant NLRP3 were first primed with LPS, then treated with or without 149-01 (600 nM) for 30 min, lastly stimulated with nigericin. (F) IL-1 beta releases in supernatants were detected by ELISA. (G) Active IL-1 beta and p20 in supernatants and NLRP3, pro-IL-1 beta , pro-caspase-1 and beta -actin in cell lysates were measured by western blot. Data are obtained from three independent experiments, each with two biological replicates and are expressed as mean ± s. e.m (n = 6) (F), or are representative of three independent experiments (A–E,G). One-way ANOVA was applied to calculate statistical significance: ***p <.001, NS, not significant. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35250572), licensed under a CC-BY license. Not internally tested by R&D Systems.

AMPK activation restores A beta 42‐induced mitochondrial hyperfission and inflammasome activation in LPS‐primed microglia. LPS‐primed microglia were pretreated with AICAR (1 mM) for 1 h and then treated with A beta 42 for 24 h. (a–e) Representative immunoblot (a) and densitometric quantifications (b–e) of the protein levels of pAMPK, AMPK, pSyk, Syk, Drp1, pro‐IL‐1 beta , and beta ‐actin in total cell lysate. (f–g) MitoSOX (red) and DAPI (blue) staining and quantification of MitoSOX fluorescence intensity. Scale bar: 10 μm. (h) Immunostaining of ASC (red) and DAPI (blue). Scale bar: 10 μm. (i) Percentages of microglia containing ASC foci were counted. Data are shown as mean ± SEM from at least three independent experiments and are analyzed by one‐way ANOVA and Tukey's multiple comparisons test. *p < 0.05, **p < 0.01, ***p < 0.001, and ****p < 0.0001 Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35474599), licensed under a CC-BY license. Not internally tested by R&D Systems.

Ang-(1-7) attenuates the induction and activation of the NLRP3 inflammasome mediated by IL-1 beta in HUVEC. The expression of NLRP3 inflammasome components (A) NLRP3 and (B) pro-IL-1 beta was determined by Western blot in total lysates from HUVEC stimulated for 18-24 h with IL-1 beta (2.5 ng/ml) in presence or absence of Ang-(1-7) (100 nM). Representative blots are shown on top of the corresponding graphs, where beta -Actin was employed as loading control (n= 6-8; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). (C) The NLRP3 inflammasome activation was determined by the detection of ASC specks by indirect immunofluorescence. The percentage of ASC specks per culture field was quantified under a fluorescence microscope (n= 3-4; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). (D) Confocal representative photographs (630X magnification) where white arrowheads show the location of toroidal-shaped ASC specks as revealed by a specific antibody against ASC (red), while cell nuclei were counterstained with DAPI (blue). (E) levels of mature IL-1 beta were measured in total cell lysates by Western blot, and also (F) detected in the supernatants of treated cells by ELISA (n= 3-4; *p<0.05 vs. untreated cells; #p<0.05 vs. IL-1 beta -treated cells, by two-way ANOVA and Tukey post-hoc test). All data are shown as mean ± SEM and expressed as percentage of IL-1 beta -induced levels. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35111374), licensed under a CC-BY license. Not internally tested by R&D Systems.

Manoalide inhibits the NLRP3 inflammasome activation. (A-C) BMDMs were primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin for 15 min (A) ELISA of mature IL-1 beta in supernatant from BMDMs. (B) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (C) LDH release in the supernatant from BMDMs. (D) ELISA of mature IL-1 beta and (E) Western blots of SN and Input from BMDMs primed with LPS and stimulated with nigericin, MSU and ATP with or without 500 nM manoalide. (F-H) BMDMs were primed with Pam3K for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with cytosolic LPS (cLPS) for 16 h. (F) Production of mature IL-1 beta in supernatant from BMDMs. (G) Western blots analysis of supernatant (SN) and cell lysates (Input) from BMDMs. (H) LDH release in the supernatant from BMDMs. (I) ELISA of mature human IL-1 beta in supernatant from PBMCs primed with LPS for 3 h and then were pretreated with 125, 250, 500 nM manoalide before stimulation with nigericin. Data are derived from three independent experiments (A,C,D,F,H,I) and displayed as mean and SEM (n = 6) or represent three independent experiments (B,E,G). Statistically significant difference was calculated by unpaired Student’s t-test: ***p < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35252186), licensed under a CC-BY license. Not internally tested by R&D Systems.

miR-1208 is the key miRNA bind to METTL3 in EVs to exert anti-inflammatory effects. A. Western blot analysis of Ago-2 expression in hucMSCs lysates. B. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. C. Heat map of miRNA levels in hucMSCs-EVs (n = 3, Student’s t test). D. Four most significantly upregulated miRNAs in hucMSCs-EVs. E. The target sequence of miR-1208 estimated within 3′-UTR of METTL3. F. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. G. Luciferase reporter assay showing that METTL3 is the target gene for miR-1208 (n = 3, Student’s t test) Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35842714), licensed under a CC-BY license. Not internally tested by R&D Systems.

Multiple TCAs specifically induce the NLRP3 inflammasome activation by triggering upstream signaling events. a The structures of these antidepressants. b LPS-primed BMDMs were stimulated with protriptyline, amitriptyline, nortriptyline, imipramine, doxepin, clomipramine, agomelatine, mirtazapine, and phenothiazine. Western blot assessed the expression of caspase-1 and IL-1 beta in SN and GSDMD cleavage in WCL. c BMDMs were incubated with LPS and MCC950 and then treated with imipramine, amitriptyline, protriptyline and nortriptyline. The expressions of IL-1 beta and caspase-1 in SN as well as GSDMD cleavage in WCL were evaluated using western blotting. dNlrp3−/− BMDMs were incubated with LPS followed by imipramine, amitriptyline, protriptyline and nortriptyline stimulation. The expression of IL-1 beta and caspase-1 in SN and GSDMD cleavage in WCL were measured by western blotting. e BMDMs or hepatocytes were pretreated with LPS and MCC950 and then treated with nortriptyline, western blot was used to measure the expression of caspase-1 in SN. f BMDMs or Kupffer cells were incubated with LPS and MCC950 followed by nortriptyline treatment. The expression of caspase-1 in SN were assessed by western blot Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37231437), licensed under a CC-BY license. Not internally tested by R&D Systems.

IL‐1 beta secretion occurs independently of pore formationWild‐type and GsdmD−/− HoxB8 macrophages were treated as indicated for 16 h. Supernatants were analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were seeded in an 8‐well Ibidi chamber and treated for 14 h with LPS and GM‐CSF. Cells were fixed and stained for gasdermin D (green), IL‐1 beta (red), and DAPI (blue). Images were taken at the Zeiss LSM880 Confocal microscope.HoxB8 macrophages were co‐stimulated with three different PEG 3 mM for 16 h as indicated. Supernatants were analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were seeded in a 96‐well microplate and treated as indicated. Before treatment, SYTOX green was added and cells were imaged in an IncuCyte incubator microscope every hour for 16 h. Shown is the SYTOX green signal normalized to the total cell area.Wild‐type and GsdmD−/− HoxB8 macrophages were treated as indicated for 16 h. Proteins were extracted and analyzed for IL‐1 beta ubiquitination by western blot.Data information: n ≥ 3 biological replicates (every dot represents one biological replicate). For all panels, error bars are SEM. Significance was calculated using one‐way ANOVA with multiple comparisons, or two‐way ANOVA to compare across genotypes. P‐values are shown. Microscopy pictures and westerns are representative images from three biological replicates. Scale bars in microscopy images represent 10 µm.Source data are available online for this figure. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35695080), licensed under a CC-BY license. Not internally tested by R&D Systems.

NLRP3 inflammasome activation in MSC-mediated mandibular healing. Two-month-old WT or Prx1-Cre/ROSAnTnG mice used, as specified in the figure legends. Mice received mandibular osteotomy surgery & sacrificed at various time points during healing, N=4. (F-H) M-MSCs from WT mice cultured & stimulated with or without 10 μg/ml LPS ± 5 mM ATP during culture, as indicated in the figures. (F) WB of cell lysates & supernatants from M-MSCs cultures. Image collected & cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36778113), licensed under a CC-BY license. Not internally tested by R&D Systems.

GM‐CSF induces NLRP3‐dependent IL‐1 beta secretionBMDMM were treated as indicated with either 60 ng/ml ultra‐pure (UP) LPS, 50 ng/ml human‐derived recombinant GM‐CSF, 40 µM WEHD‐FMK for 16 h, or 5 µM nigericin for the last hour. Supernatants were then analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were treated with the indicated dilutions of GM‐CSF using supernatants from GM‐CSF‐expressing cells. Shown are ELISA analysis of IL‐1 beta secretion in supernatants and western blots indicating IL‐1 beta expression in lysates.HoxB8 macrophages of the indicated genotypes were treated as indicated with 60 ng/ml UP‐LPS, 1% GM‐CSF containing supernatant (approximately 2 ng/ml GM‐CSF), 40 µM WEHD.FMK, and 0.5 µM CRT‐0066101 for 16 h; 5 µM nigericin was added for the last hour. Supernatants were analyzed by ELISA for IL‐1 beta . Inlay panels show western blots for levels of IL‐1 beta expression in the indicated knockouts.HoxB8 cells were treated with 60 ng/ml of UP‐LPS, 1% GM‐CSF supernatant, 50 mM KCl, and 5 µM nigericin as indicated for 16 h before supernatants were analyzed for IL‐1 beta by ELISA. Data information: n ≥ 3 biological replicates (every dot represents one biological replicate). For all panels, error bars are SEM. Significance was calculated using one‐way ANOVA with multiple comparisons or two‐way ANOVA to compare across genotypes. P‐values are shown. Source data are available online for this figure. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35695080), licensed under a CC-BY license. Not internally tested by R&D Systems.

miR-1208 is the key miRNA bind to METTL3 in EVs to exert anti-inflammatory effects. A. Western blot analysis of Ago-2 expression in hucMSCs lysates. B. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. C. Heat map of miRNA levels in hucMSCs-EVs (n = 3, Student’s t test). D. Four most significantly upregulated miRNAs in hucMSCs-EVs. E. The target sequence of miR-1208 estimated within 3′-UTR of METTL3. F. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. G. Luciferase reporter assay showing that METTL3 is the target gene for miR-1208 (n = 3, Student’s t test) Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35842714), licensed under a CC-BY license. Not internally tested by R&D Systems.

Multiple TCAs specifically induce the NLRP3 inflammasome activation by triggering upstream signaling events. a The structures of these antidepressants. b LPS-primed BMDMs were stimulated with protriptyline, amitriptyline, nortriptyline, imipramine, doxepin, clomipramine, agomelatine, mirtazapine, and phenothiazine. Western blot assessed the expression of caspase-1 and IL-1 beta in SN and GSDMD cleavage in WCL. c BMDMs were incubated with LPS and MCC950 and then treated with imipramine, amitriptyline, protriptyline and nortriptyline. The expressions of IL-1 beta and caspase-1 in SN as well as GSDMD cleavage in WCL were evaluated using western blotting. dNlrp3−/− BMDMs were incubated with LPS followed by imipramine, amitriptyline, protriptyline and nortriptyline stimulation. The expression of IL-1 beta and caspase-1 in SN and GSDMD cleavage in WCL were measured by western blotting. e BMDMs or hepatocytes were pretreated with LPS and MCC950 and then treated with nortriptyline, western blot was used to measure the expression of caspase-1 in SN. f BMDMs or Kupffer cells were incubated with LPS and MCC950 followed by nortriptyline treatment. The expression of caspase-1 in SN were assessed by western blot Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37231437), licensed under a CC-BY license. Not internally tested by R&D Systems.

GM‐CSF induces NLRP3‐dependent IL‐1 beta secretionBMDMM were treated as indicated with either 60 ng/ml ultra‐pure (UP) LPS, 50 ng/ml human‐derived recombinant GM‐CSF, 40 µM WEHD‐FMK for 16 h, or 5 µM nigericin for the last hour. Supernatants were then analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were treated with the indicated dilutions of GM‐CSF using supernatants from GM‐CSF‐expressing cells. Shown are ELISA analysis of IL‐1 beta secretion in supernatants and western blots indicating IL‐1 beta expression in lysates.HoxB8 macrophages of the indicated genotypes were treated as indicated with 60 ng/ml UP‐LPS, 1% GM‐CSF containing supernatant (approximately 2 ng/ml GM‐CSF), 40 µM WEHD.FMK, and 0.5 µM CRT‐0066101 for 16 h; 5 µM nigericin was added for the last hour. Supernatants were analyzed by ELISA for IL‐1 beta . Inlay panels show western blots for levels of IL‐1 beta expression in the indicated knockouts.HoxB8 cells were treated with 60 ng/ml of UP‐LPS, 1% GM‐CSF supernatant, 50 mM KCl, and 5 µM nigericin as indicated for 16 h before supernatants were analyzed for IL‐1 beta by ELISA. Data information: n ≥ 3 biological replicates (every dot represents one biological replicate). For all panels, error bars are SEM. Significance was calculated using one‐way ANOVA with multiple comparisons or two‐way ANOVA to compare across genotypes. P‐values are shown. Source data are available online for this figure. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35695080), licensed under a CC-BY license. Not internally tested by R&D Systems.

A 1-hydroxy phenothiazinium-based small molecule inhibits OMV-mediated cytotoxicity and cytokine release in vitro.A Scheme showing the screening strategy to identify potent inhibitors of caspase-11 signaling; B Drug-like properties of PHZ-OH; C Cytotoxicity and IL-1 alpha secretion of wild type (WT), Casp11−/−, Gsdmd−/−, or Nlrp3−/− mouse peritoneal macrophages under a treatment of PHZ-OH (5 μM), and/or a challenge of OMV (10 μg/mL) or E. coli (a MOI of 10) for 16 h; D Caspase-11 mRNA level and cytotoxicity of macrophages primed using LPS (1 μg/mL), Pam3cSK4 (1 μg/mL) or Poly(I:C) (1 μg/mL) for 3 h and challenged with OMV (10 μg/mL) or E. coli (a MOI of 10) for 16 h in the presence or absence of PHZ-OH (5 μM); E TLR4-dependent cytokines (TNF alpha and IL-6) released from WT or Casp11−/− macrophages under a treatment of saline or PHZ-OH (5 μM), and/or a challenge of OMV (10 μg/mL) for 16 h; F Western blots for IL-1 alpha , IL-1 beta and caspase-11 expression and GSDMD cleavage in saline-treated or OMV-challenged macrophages under a treatment of saline or different doses of PHZ-OH (P, 5 or 10 μM); G–J LDH (G or I) and IL-1 alpha as well as IL-1 beta (H or J) released from mouse peritoneal macrophages (WT and Casp11−/−) or THP-1 cells (Transfected with control or caspase-4 siRNA), respectively, in the presence of different concentrations of PHZ-OH (1, 2, 4 μM) and challenged with OMV (10 μg/mL) for 16 h. Data are shown as mean ± SEM of three independent experiments. *P < 0.05. ns, not significant. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35982051), licensed under a CC-BY license. Not internally tested by R&D Systems.

IL‐1 beta secretion occurs independently of pore formationWild‐type and GsdmD−/− HoxB8 macrophages were treated as indicated for 16 h. Supernatants were analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were seeded in an 8‐well Ibidi chamber and treated for 14 h with LPS and GM‐CSF. Cells were fixed and stained for gasdermin D (green), IL‐1 beta (red), and DAPI (blue). Images were taken at the Zeiss LSM880 Confocal microscope.HoxB8 macrophages were co‐stimulated with three different PEG 3 mM for 16 h as indicated. Supernatants were analyzed for IL‐1 beta secretion by ELISA.HoxB8 macrophages were seeded in a 96‐well microplate and treated as indicated. Before treatment, SYTOX green was added and cells were imaged in an IncuCyte incubator microscope every hour for 16 h. Shown is the SYTOX green signal normalized to the total cell area.Wild‐type and GsdmD−/− HoxB8 macrophages were treated as indicated for 16 h. Proteins were extracted and analyzed for IL‐1 beta ubiquitination by western blot.Data information: n ≥ 3 biological replicates (every dot represents one biological replicate). For all panels, error bars are SEM. Significance was calculated using one‐way ANOVA with multiple comparisons, or two‐way ANOVA to compare across genotypes. P‐values are shown. Microscopy pictures and westerns are representative images from three biological replicates. Scale bars in microscopy images represent 10 µm.Source data are available online for this figure. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35695080), licensed under a CC-BY license. Not internally tested by R&D Systems.

miR-1208 is the key miRNA bind to METTL3 in EVs to exert anti-inflammatory effects. A. Western blot analysis of Ago-2 expression in hucMSCs lysates. B. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. C. Heat map of miRNA levels in hucMSCs-EVs (n = 3, Student’s t test). D. Four most significantly upregulated miRNAs in hucMSCs-EVs. E. The target sequence of miR-1208 estimated within 3′-UTR of METTL3. F. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. G. Luciferase reporter assay showing that METTL3 is the target gene for miR-1208 (n = 3, Student’s t test) Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35842714), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod mediates inflammasome activation through mitochondrial damage and reactive oxygen species production. (A) Analysis by confocal microscopy of LPS-primed BMDMs stimulated with nigericin or apilimod and subsequently stained with MitoTracker Red (50 nM) follow by the DNA-binding dye DAPI (blue). Scale bar, 20 μm. (B) Analysis by FACS of THP1 cells stimulated with nigericin or apilimod and subsequently stained with MitoTracker deep red (50 nM) and MitoTracker green (50 nM). (C, D) Analysis by confocal microscopy and FACS of BMDMs stimulated with nigericin or apilimod and subsequently stained with MitoSOX Red (1 μM). Scale bar, 20 μm. (E, F) LPS-primed BMDMs were pretreated with a ROS inhibitor (MnTBAP, 150 μM) for 30 min and then stimulated with apilimod for 2 hours. (E) ELISA of IL-1 beta in culture supernatants. (F) Western blot of IL-1 beta , cleaved caspase-1 in supernatants (SN) and pro-IL-1 beta , pro-caspase-1, beta –actin in cell lysate (Input). The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 3 or 4) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod damage the mitochondria through inducing lysosomal calcium flux. (A, B) BMDMs were first primed with LPS for 3 hours, then pretreated with BAPTA-AM (25 μM, 50 μM) for 30 minutes, and stimulated with apilimod for 2 hours. (A) Fluo-4 AM (5 μM) staining of BMDMs after apilimod treatment, FACS analysis was conducted to show changes in cell calcium flux. (B) ELISA of IL-1 beta in culture supernatants. (C–E) LPS-primed BMDMs pretreated with ML-SI3 for 30 min and then stimulated with apilimod. (C) Fluo-4 AM staining of BMDMs after apilimod treatment, FACS analysis was conducted to show changes in cell calcium flux. (D) ELISA of IL-1 beta in culture supernatants.(E) Western blot of IL-1 beta , cleaved caspase-1 in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 (pro-casp1), beta –actin in cell lysate. (F, G) BMDMs transfected with siRNA against Trpml1 or control siRNA were primed with LPS for 3 h and were then treated with apilimod or nigericin. The supernatant of the cell culture was collected. (F)Trpml1 mRNA in BMDMs. (G) ELISA of IL-1 beta in the supernatants of BMDMs. (H) LPS-primed THP-1 cells were pretreated with BAPTA-AM (50 μM) or ML-SI3 (40 μM) for 30 minutes, and stimulated with apilimod for 2 hours. subsequently stained with MitoTracker deep red (50 nM) and MitoTracker green (50 nM). Analysis by FACS of THP1 cells. The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 3) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: **P < 0.01; ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

Astrocytes activation upon A beta 1-42 fibrils. (a) Cell lysates of primary astrocytes treated with 10 μM A beta 1-42 fibrils for 16 h, or with 10 mM-DMSO HCl as a control, were subjected to immunoblotting using IL-1 beta , clusterin (Clu) and GAPDH antibodies. Data are representative of several independent experiments (IL-1 beta : n = 10, clusterin: n = 4). (b) ROS mean signal intensity was assessed in primary astrocytes exposed to 10 μM A beta 1-42 fibrils for 16 h or to 10 mM-DMSO HCl as a control. Data are representative of five independent experiments and are expressed as mean ± SEM. Data were analyzed using unpaired t-test, *** p < 0.0001. (c) Representative cytofluorimetric profile and MFI values of astrocytes exposed to 10 µM FAM-A beta fibrils for different time points (1 h, 2 h and 4 h). The control curve represents the autofluorescence level of untreated cells. (d) Representative images of astrocytes exposed to A beta 1-42 fibrils for 2 h, fixed and immunostained for A beta 1-42 (green) and GFAP (red). Nuclei were stained with DAPI (blue). Scale bar 10 µm. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36830676), licensed under a CC-BY license. Not internally tested by R&D Systems.

Multiple TCAs specifically induce the NLRP3 inflammasome activation by triggering upstream signaling events. a The structures of these antidepressants. b LPS-primed BMDMs were stimulated with protriptyline, amitriptyline, nortriptyline, imipramine, doxepin, clomipramine, agomelatine, mirtazapine, and phenothiazine. Western blot assessed the expression of caspase-1 and IL-1 beta in SN and GSDMD cleavage in WCL. c BMDMs were incubated with LPS and MCC950 and then treated with imipramine, amitriptyline, protriptyline and nortriptyline. The expressions of IL-1 beta and caspase-1 in SN as well as GSDMD cleavage in WCL were evaluated using western blotting. dNlrp3−/− BMDMs were incubated with LPS followed by imipramine, amitriptyline, protriptyline and nortriptyline stimulation. The expression of IL-1 beta and caspase-1 in SN and GSDMD cleavage in WCL were measured by western blotting. e BMDMs or hepatocytes were pretreated with LPS and MCC950 and then treated with nortriptyline, western blot was used to measure the expression of caspase-1 in SN. f BMDMs or Kupffer cells were incubated with LPS and MCC950 followed by nortriptyline treatment. The expression of caspase-1 in SN were assessed by western blot Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37231437), licensed under a CC-BY license. Not internally tested by R&D Systems.

A 1-hydroxy phenothiazinium-based small molecule inhibits OMV-mediated cytotoxicity and cytokine release in vitro.A Scheme showing the screening strategy to identify potent inhibitors of caspase-11 signaling; B Drug-like properties of PHZ-OH; C Cytotoxicity and IL-1 alpha secretion of wild type (WT), Casp11−/−, Gsdmd−/−, or Nlrp3−/− mouse peritoneal macrophages under a treatment of PHZ-OH (5 μM), and/or a challenge of OMV (10 μg/mL) or E. coli (a MOI of 10) for 16 h; D Caspase-11 mRNA level and cytotoxicity of macrophages primed using LPS (1 μg/mL), Pam3cSK4 (1 μg/mL) or Poly(I:C) (1 μg/mL) for 3 h and challenged with OMV (10 μg/mL) or E. coli (a MOI of 10) for 16 h in the presence or absence of PHZ-OH (5 μM); E TLR4-dependent cytokines (TNF alpha and IL-6) released from WT or Casp11−/− macrophages under a treatment of saline or PHZ-OH (5 μM), and/or a challenge of OMV (10 μg/mL) for 16 h; F Western blots for IL-1 alpha , IL-1 beta and caspase-11 expression and GSDMD cleavage in saline-treated or OMV-challenged macrophages under a treatment of saline or different doses of PHZ-OH (P, 5 or 10 μM); G–J LDH (G or I) and IL-1 alpha as well as IL-1 beta (H or J) released from mouse peritoneal macrophages (WT and Casp11−/−) or THP-1 cells (Transfected with control or caspase-4 siRNA), respectively, in the presence of different concentrations of PHZ-OH (1, 2, 4 μM) and challenged with OMV (10 μg/mL) for 16 h. Data are shown as mean ± SEM of three independent experiments. *P < 0.05. ns, not significant. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35982051), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod induces caspase-1 activation and IL-1 beta secretion. (A–E) BMDMs were first primed with LPS for 3 h, then stimulated with doses of apilimod (2.5-7.5 μM) for 2 hours. The supernatant of the cell culture was collected. (A) ELISA of IL-1 beta releases in culture supernatants. (B) Immunoblot analysis of Active IL-1 beta and p20 (cleaved caspase-1) in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 (pro-casp1) and beta -actin in cell lysates (Input). (C) The release of LDH in supernatants (D) TNF-alpha and (E) IL-6 secretion levels in supernatants were detected by ELISA. (F) Immunoblot analysis of cleaved IL-1 beta and caspase-1 (p20) in culture supernatants (SN) and inactive precursor molecule (pro– IL-1 beta , pro–caspase-1(pro-casp1) in cell lysates (Input) of PMA-differentiated THP-1 cells stimulated with different doses of apilimod. (G) IL-1 beta secretion levels of PBMCs in supernatants were determined by ELISA. The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 4 or 3) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

Astrocytes activation upon A beta 1-42 fibrils. (a) Cell lysates of primary astrocytes treated with 10 μM A beta 1-42 fibrils for 16 h, or with 10 mM-DMSO HCl as a control, were subjected to immunoblotting using IL-1 beta , clusterin (Clu) and GAPDH antibodies. Data are representative of several independent experiments (IL-1 beta : n = 10, clusterin: n = 4). (b) ROS mean signal intensity was assessed in primary astrocytes exposed to 10 μM A beta 1-42 fibrils for 16 h or to 10 mM-DMSO HCl as a control. Data are representative of five independent experiments and are expressed as mean ± SEM. Data were analyzed using unpaired t-test, *** p < 0.0001. (c) Representative cytofluorimetric profile and MFI values of astrocytes exposed to 10 µM FAM-A beta fibrils for different time points (1 h, 2 h and 4 h). The control curve represents the autofluorescence level of untreated cells. (d) Representative images of astrocytes exposed to A beta 1-42 fibrils for 2 h, fixed and immunostained for A beta 1-42 (green) and GFAP (red). Nuclei were stained with DAPI (blue). Scale bar 10 µm. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36830676), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod mediates inflammasome activation through mitochondrial damage and reactive oxygen species production. (A) Analysis by confocal microscopy of LPS-primed BMDMs stimulated with nigericin or apilimod and subsequently stained with MitoTracker Red (50 nM) follow by the DNA-binding dye DAPI (blue). Scale bar, 20 μm. (B) Analysis by FACS of THP1 cells stimulated with nigericin or apilimod and subsequently stained with MitoTracker deep red (50 nM) and MitoTracker green (50 nM). (C, D) Analysis by confocal microscopy and FACS of BMDMs stimulated with nigericin or apilimod and subsequently stained with MitoSOX Red (1 μM). Scale bar, 20 μm. (E, F) LPS-primed BMDMs were pretreated with a ROS inhibitor (MnTBAP, 150 μM) for 30 min and then stimulated with apilimod for 2 hours. (E) ELISA of IL-1 beta in culture supernatants. (F) Western blot of IL-1 beta , cleaved caspase-1 in supernatants (SN) and pro-IL-1 beta , pro-caspase-1, beta –actin in cell lysate (Input). The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 3 or 4) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

NLRP3 inflammasome activation in MSC-mediated mandibular healing. Two-month-old WT or Prx1-Cre/ROSAnTnG mice used, as specified in the figure legends. Mice received mandibular osteotomy surgery & sacrificed at various time points during healing, N=4. (F-H) M-MSCs from WT mice cultured & stimulated with or without 10 μg/ml LPS ± 5 mM ATP during culture, as indicated in the figures. (F) WB of cell lysates & supernatants from M-MSCs cultures. Image collected & cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/36778113), licensed under a CC-BY license. Not internally tested by R&D Systems.

Multiple TCAs specifically induce the NLRP3 inflammasome activation by triggering upstream signaling events. a The structures of these antidepressants. b LPS-primed BMDMs were stimulated with protriptyline, amitriptyline, nortriptyline, imipramine, doxepin, clomipramine, agomelatine, mirtazapine, and phenothiazine. Western blot assessed the expression of caspase-1 and IL-1 beta in SN and GSDMD cleavage in WCL. c BMDMs were incubated with LPS and MCC950 and then treated with imipramine, amitriptyline, protriptyline and nortriptyline. The expressions of IL-1 beta and caspase-1 in SN as well as GSDMD cleavage in WCL were evaluated using western blotting. dNlrp3−/− BMDMs were incubated with LPS followed by imipramine, amitriptyline, protriptyline and nortriptyline stimulation. The expression of IL-1 beta and caspase-1 in SN and GSDMD cleavage in WCL were measured by western blotting. e BMDMs or hepatocytes were pretreated with LPS and MCC950 and then treated with nortriptyline, western blot was used to measure the expression of caspase-1 in SN. f BMDMs or Kupffer cells were incubated with LPS and MCC950 followed by nortriptyline treatment. The expression of caspase-1 in SN were assessed by western blot Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37231437), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod induces caspase-1 activation and IL-1 beta secretion. (A–E) BMDMs were first primed with LPS for 3 h, then stimulated with doses of apilimod (2.5-7.5 μM) for 2 hours. The supernatant of the cell culture was collected. (A) ELISA of IL-1 beta releases in culture supernatants. (B) Immunoblot analysis of Active IL-1 beta and p20 (cleaved caspase-1) in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 (pro-casp1) and beta -actin in cell lysates (Input). (C) The release of LDH in supernatants (D) TNF-alpha and (E) IL-6 secretion levels in supernatants were detected by ELISA. (F) Immunoblot analysis of cleaved IL-1 beta and caspase-1 (p20) in culture supernatants (SN) and inactive precursor molecule (pro– IL-1 beta , pro–caspase-1(pro-casp1) in cell lysates (Input) of PMA-differentiated THP-1 cells stimulated with different doses of apilimod. (G) IL-1 beta secretion levels of PBMCs in supernatants were determined by ELISA. The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 4 or 3) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

Apilimod damage the mitochondria through inducing lysosomal calcium flux. (A, B) BMDMs were first primed with LPS for 3 hours, then pretreated with BAPTA-AM (25 μM, 50 μM) for 30 minutes, and stimulated with apilimod for 2 hours. (A) Fluo-4 AM (5 μM) staining of BMDMs after apilimod treatment, FACS analysis was conducted to show changes in cell calcium flux. (B) ELISA of IL-1 beta in culture supernatants. (C–E) LPS-primed BMDMs pretreated with ML-SI3 for 30 min and then stimulated with apilimod. (C) Fluo-4 AM staining of BMDMs after apilimod treatment, FACS analysis was conducted to show changes in cell calcium flux. (D) ELISA of IL-1 beta in culture supernatants.(E) Western blot of IL-1 beta , cleaved caspase-1 in supernatants (SN) and pro-IL-1 beta , pro-caspase-1 (pro-casp1), beta –actin in cell lysate. (F, G) BMDMs transfected with siRNA against Trpml1 or control siRNA were primed with LPS for 3 h and were then treated with apilimod or nigericin. The supernatant of the cell culture was collected. (F)Trpml1 mRNA in BMDMs. (G) ELISA of IL-1 beta in the supernatants of BMDMs. (H) LPS-primed THP-1 cells were pretreated with BAPTA-AM (50 μM) or ML-SI3 (40 μM) for 30 minutes, and stimulated with apilimod for 2 hours. subsequently stained with MitoTracker deep red (50 nM) and MitoTracker green (50 nM). Analysis by FACS of THP1 cells. The data are from three independent experiments with biological duplicates in each and are shown as the mean ± SEM values (n = 3) or are representative of three independent experiments. One-way ANOVA was applied to calculate statistical significance: **P < 0.01; ***P < 0.001. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37359517), licensed under a CC-BY license. Not internally tested by R&D Systems.

miR-1208 is the key miRNA bind to METTL3 in EVs to exert anti-inflammatory effects. A. Western blot analysis of Ago-2 expression in hucMSCs lysates. B. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. C. Heat map of miRNA levels in hucMSCs-EVs (n = 3, Student’s t test). D. Four most significantly upregulated miRNAs in hucMSCs-EVs. E. The target sequence of miR-1208 estimated within 3′-UTR of METTL3. F. Western blot analysis of IL-1 beta and cleaved caspase-1 levels in culture SN and pro-IL-1 beta , pro-caspase-1, NLRP3, and METTL3 levels in macrophage cell lysates in each group. G. Luciferase reporter assay showing that METTL3 is the target gene for miR-1208 (n = 3, Student’s t test) Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/35842714), licensed under a CC-BY license. Not internally tested by R&D Systems.

MafB knockdown promotes the activation of the NLRP3 inflammasome.a–c PMs were transfected with 50 nM control or MafB siRNAs. Forty-eight hours after transfection, were treated with 100 ng/ml LPS for 3 h. were then washed & stimulated with or without ATP (5 mM), Nigericin (5 uM) or MSU (1 mM) in serum-free media for an additional 1 h. Levels of the supernatant IL-1 beta (a) & IL-18 (b) were determined by ELISA. Levels of the supernatant LDH (c) were determined by LDH assay. d PMs were transfected, primed & stimulated with the NLRP3 agonists as in (a). Supernatant proteins were precipitated by TCA & combined with the respective cellular extracts. Levels of the indicated proteins were determined by WBting. Vertically stacked bands originate either from a single membrane or from a replicate membrane, with the same sample loadings. e, f PMs were transfected with control siRNAs or MafB siRNAs. Forty-eight hours after transfection, were primed with LPS for 3 h, followed by stimulation with or without Nigericin for 1 h. were then fixed with 4% PFA & subjected to immunofluorescence staining for ASC. Scale bars: 100 μm (e). ASC specks in the were quantified (f). n = 3–8. g, h J774A.1 macrophages were transfected with control siRNAs or MafB siRNAs. 48 h after transfection, were primed with LPS for 4 h, followed by stimulation with or without ATP (5 mM) or Nigericin (10 μM) for 1 h. Levels of the supernatant IL-1 beta & LDH were determined (g). Levels of the indicated proteins in the supernatants & were determined by WBting (h). Vertically stacked bands originate either from a single membrane or from a replicate membrane, with the same sample loadings. Mean ± SD; *P < 0.05, **P < 0.01, ***P < 0.001. Representative of three independent experiments. LDH lactate dehydrogenase. Image collected & cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/37845329), licensed under a CC-BY license. Not internally tested by R&D Systems.

NPC86 reduces IL-1 beta protein levels. (a) An automated Western blot analysis using JESS was performed on adipose tissue from DIOD and DIOD + NPC86 (500 ng/kg b.w.) mice using antibodies against IL-1 beta and GAPDH. Representative blots and quantification are displayed. A statistical analysis was performed in GraphPad Prism using an unpaired t-test (n = 3 per group). The data are presented as mean ± SEM, with statistical significance indicated as *** p < 0.001. (b) The serum concentrations of IL-1 beta , GM-CSF, G-CSF, and MCP-1 were measured by ELISA in DIOD and DIOD + NPC86 (500 ng/kg and 1 μg/kg b.w.) mice. A statistical analysis was performed in GraphPad Prism using an unpaired t-test (n = 3 per group). The data are presented as mean ± SEM, with statistical significance indicated as * p < 0.05, ** p < 0.01. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/40332318), licensed under a CC-BY license. Not internally tested by R&D Systems.

AP specifically reduces NLRP3 inflammasome activation. (a,b) Cell viability assays of J774A.1 cells (a) and differentiated THP-1 cells (b) treated with AP (10 μg/mL, 50 μg/mL, 100 μg/mL) for 2 h. Cell viability was analyzed by EZ-CYTOX, measured at a wavelength of 450 nm. Ns not significant. (c–e) Western blots of IL-1 beta in the supernatants (Sup), pro-IL-1 beta and alpha -tubulin in the soluble lysates (Lys) of treated cells. LPS-primed J774A.1 cells were treated with AP for 2 h and activated for 30 min with nigericin (10 μM) (c) or ATP (5 mM) (d) with or without MCC950, differentiated, and LPS-primed THP-1 cells were treated with AP for 2 h and activated for 30 min with nigericin (10 μM) with or without MCC950 (e). (f,g) LPS-primed J774A.1 cells were treated with AP for 2 h and activated for 3 h with transfection of dsDNA (2 μg/mL) (f) or flagellin (1.25 μg/mL) (g). Image collected and cropped by CiteAb from the following open publication (//www.nature.com/articles/s41598-024-55651-z), licensed under a CC-BY license. Not internally tested by R&D Systems.

The CR3-Als3 complex at the F-actin cuff promotes Syk phosphorylation and inflammasome activation. A Immunoblot analysis of p-Syk from C57BL/6 and CD18−/− M0 BMDM (without GM-CSF priming) lysates after stimulation with C. albicans hyphae for indicated periods. Total Syk served as a loading control. b WT M0 BMDMs were pretreated with anti-CD11b blocking antibody (M1/70, 10 μg/mL) for 30 min before stimulation with C. albicans hyphae. Cell lysates were subjected to immunoblot analysis of p-Syk and total Syk. IgG2b, kappa was used as an isotype control. c Immunoblot analysis of p-Syk and total Syk from C57BL/6 or CD18−/− M0 BMDMs after WT, als1 delta / delta als3 delta / delta , or als1 delta / delta als3S170Y hyphal infection. d Immunoblot analysis of p-Syk from C57BL/6 and CD18−/− M0 BMDM (without GM-CSF priming) lysates after stimulation with 15 µg ml-1 Als3 or Als3S170Y for indicated periods. Total Syk served as a loading control. e Immunofluorescence images of M0 BMDMs after stimulation with C. albicans hyphae expressing TagBFP for 20 min. p-Tyr, CD11b, and F-actin were analyzed. Scale bars, 7.5 µm. f Immunofluorescence images of M1 BMDMs after infection with C. albicans hyphae expressing TagBFP for 20 min. p-Syk, CD11b, and Dectin-2 were analyzed. Scale bar, 7.5 µm. g Immunoblot analysis of caspase-1 and IL-1 beta after infection with C. albicans hyphae in BMDMs with or without Cyto D and Lat B. Hyphae were induced in RMPI medium a–c, e, f and SC medium plus GlcNAc g. Each experiment was repeated three times independently. Data in g are presented as mean ± SEM. P values in g were determined by one-way ANOVA (Tukey’s multiple comparisons test). ns not significant. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (//www.nature.com/articles/s41467-024-48093-8), licensed under a CC-BY license. Not internally tested by R&D Systems.

Inhibition of Clec7a effectively mitigates microglial synaptic phagocytosis and neuroinflammation in PS19 mice. (A) Representative Western blots of indicated proteins in the ventral hippocampal lysates from 6-month-old WT mice and Laminarin-administered PS19 mice. (B) Quantitation of Clec7a, P-SYK, NLRP3, ASC, Procaspase-1, and IL-1 beta proteins in (A) (n = 6 mice per group, unpaired Student’s t test). (C) Representative Western blots of indicated proteins in the ventral hippocampal lysates from 6-months old WT mice and Laminarin-administered PS19 mice. (D,E) Quantitation of PSD95 (D) and synaptophysin (E) proteins (n = 6 mice per group, unpaired Student’s t test). (F) Confocal images of synaptic puncta engulfed by microglia showing the colocalization of PSD95 (green) with CD68 (grays) within Iba1+ microglia (red) in the DG regions of hippocampal tissue from WT mice and Laminarin-administered PS19 mice. Scale bars, 5 μm. (G) Quantitation of CD68 volume. (H) Quantitation of PSD95 engulfment within CD68+ microglial structures (n = 6 mice per group, one-way ANOVA test). * p < 0.05; ** p < 0.01; *** p < 0.001. Data are presented as mean ± SD. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/40243488), licensed under a CC-BY license. Not internally tested by R&D Systems.

Pyroptosis is the primary mode of AEC death induced by cadmium. MLE12 cells were treated with different concentrations of CdCl2 for 24 h. Cell morphology was photographed through a microscope (A, bar = 100 μm). Cell viability was detected by CCK8 assay (B, n = 5). The LDH activity of the cell culture supernatant was assayed (C, n = 3). The Pan-caspase inhibitor (ZVAD-FMK) but not the necroptosis or ferroptosis inhibitor restored cell viability within 24 h of CdCl2 incubation (D, n = 5). Cell morphology was photographed through a microscope (E, bar = 100 μm). The expressions of SPC, NLRP3, pro-Caspase1, Caspase1 p20, IL-1 beta p17, and GSDMD-N protein in MLE12 cells were detected using western blot (F-G, n = 3). The fluorescence intensity of GSDMD was detected by immunofluorescence (H, bar = 5 μm). Data are expressed as the mean ± SD. Differences among multiple groups were performed using ANOVA. Tukey’s test was used as a post hoc test for pairwise comparisons. *P < 0.05, **P < 0.01, and ***P < 0.001 Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/39587603), licensed under a CC-BY license. Not internally tested by R&D Systems.

Hectd3 deficiency promotes the activation of NLRP3 inflammasome.A–H BMDMs isolated from Hectd3+/+ and Hectd3−/− mice were primed with LPS and stimulated with different secondary signals, including ATP and MSU. Supernatant IL-1 beta , IL-6 and TNF-alpha were analyzed using ELISA, n = 3 per group (A–C). Supernatants (SN) and cell extracts lysate (Lys) were analyzed using immunoblot assays (D). Cell death were detected by CCK8 asssay, n = 4 per group (E). Supernatants were collected to measure cell death by LDH release assay, n = 3 per group (F). PI staining was detected by fluorescence and the quantification of PI-positive cells is shown, n = 3 per group (G). The cleavage of GSDMD were detected using immunoblot assays (H); I, J. HEK293T cells were transfected with Flag-NLRP3, Myc-ASC, Flag-pro-caspase-1, Flag-pro-IL-1 beta plasmids as well as si-RNA of HECTD3 and stimulated with 2.5 mM ATP. Supernatants (SN) and cell extracts lysate (Lys) were analyzed using immunoblot assays (I); Supernatant IL-1 beta were analyzed using ELISA, n = 3 per group (J); K BMDMs isolated from Hectd3+/+ and Hectd3−/− mice were treated with 200 ng/mL LPS for 15 or 30 min, cell extracts were analyzed with immunoblot assays. Data are the mean ± SEM, ns (non-significant), P > 0.05; *P < 0.05; **P < 0.01; ***P < 0.001, two-tailed unpaired Student’s t test was used. Image collected and cropped by CiteAb from the following open publication (//www.nature.com/articles/s41419-024-06473-4), licensed under a CC-BY license. Not internally tested by R&D Systems.

AP does not affect the NF-kappa B signaling pathway. (a) 293 T cells were transfected with the pGL4.32 luciferase reporter vector and treated with TNF-alpha (20 ng/mL) for 5 h with or without AP. Luciferase activity was analyzed using the Promega Bright-Glo™ Luciferase Assay System. (b) LPS-primed J774A.1 cells were treated with AP for 2 h and activated for 30 min with nigericin (10 μM). IL-1 beta in the supernatants (Sup), phospho-NF-kappa B and NF-kappa B in the soluble lysates (Lys) were analyzed using a Western blot. Image collected and cropped by CiteAb from the following open publication (//www.nature.com/articles/s41598-024-55651-z), licensed under a CC-BY license. Not internally tested by R&D Systems.

Neutrophil recruitment contributes to BBB disruption following peripheral inflammatory stimulation.a Representative immunoblots detecting pro-IL-1 beta , IL-1 beta , and NLRP3 in brain lysates of WT mice at different time points (0, 1 ~ 6 h) after the second LPS injection. b, c Quantification of brain-infiltrating myeloid cells or neutrophils in the brain of WT mice upon PBS or repeated LPS injection at different time points by flow cytometry. (1 ~ 6 h post second LPS injection, n = 5, PBS, 4 h; 6, 3 h; 4, all other group). d Violin plot showing chemokine receptor gene expression in neutrophils of all groups. e Circle plot visualizing cell-cell communication in the CXCL signaling pathways for each experimental group. The plot displays interactions among two cell types in the PBS group and 5 cell types (Endo Endothelial cell, Peri Pericyte, Astro Astrocyte, Micro Microglia, Neutro Neutrophil) in the LPS x2 group. The width and color of arrows represent the probability of interaction. f Quantification of Evans blue depositions in the WT mouse brains upon repeated LPS injection pretreated with IgG (n = 4) or anti-Ly6G (n = 6) antibodies (50 μg, i.p.) 1 h before 1st LPS injection. g Quantification of Evans blue depositions in the WT mouse brains upon repeated LPS injection in the presence of vehicle (n = 6) or anti-CXCR2 antagonist SB225002 (n = 8) treatment (2 mg/kg, i.p.). h Quantification of Evans Blue extravasation into the brain followed by LPS injections in WT and Ccr2−/− mice. n = 5 (WT) or 3 (Ccr2−/−) mice. Error bars, s.e.m. One-way ANOVA with Dunnett post hoc test (b, c) and unpaired two-sided Student’s t test (f, g, h). Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (//pubmed.ncbi.nlm.nih.gov/39814731), licensed under a CC-BY license. Not internally tested by R&D Systems.

401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" > 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" title="Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" />

Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # <a class=

401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" > 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" title="Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" />

Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # <a class=

401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" > 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" title="Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" />

Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # <a class=

401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" > 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" title="Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" />

Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # <a class=

401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" > 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" title="Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) was serially diluted and captured by Rat Anti-Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB401) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse IL‑1 beta /IL‑1F2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-401-NA) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)" />

Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # <a class=

• Reactivity: Mu
• Applications: WB, Simple Western, IHC, B/N, ICC/IF
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Unconjugated
• Concentration: LYOPH

IL-1 beta/IL-1F2 Antibody [Unconjugated] Summary

• Immunogen: E. coli-derived recombinant mouse IL-1 beta /IL-1F2
  Val118-Ser269
  Accession # NP_032387
• Specificity: Detects mouse IL-1 beta /IL-1F2 in direct ELISAs. In direct ELISAs, less than 15% cross-reactivity with recombinant porcine IL-1 beta is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: IL1B
• Purity Statement: Antigen Affinity-purified
• Endotoxin Note: <0.10 EU per 1 μg of the antibody by the LAL method.

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry 5-15 ug/mL
  • Immunohistochemistry 5-15 ug/mL
  • Neutralization ≤0.25 ug/mL
  • Simple Western 2.5 ug/mL
  • Western Blot 0.25 ug/mL

Packaging, Storage & Formulations

• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
  *Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for IL-1 beta/IL-1F2 Antibody [Unconjugated]

• catabolin
• IL1 beta
• IL-1 beta
• IL-1
• IL1B
• IL-1b
• IL1-BETA
• IL-1F2
• IL1F2IL-1 beta
• interleukin 1, beta
• interleukin-1 beta
• preinterleukin 1 beta
• pro-interleukin-1-beta

Background

IL-1 is a name that designates two pleiotropic cytokines, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2, IL1B), which are the products of distinct genes. IL-1 alpha and IL-1 beta are structurally related polypeptides that share approximately 17% amino acid (aa) identity in mouse. Both proteins are produced by a wide variety of cells in response to inflammatory agents, infections, or microbial endotoxins. While IL-1 alpha and IL-1 beta are regulated independently, they bind to the same receptor and exert identical biological effects. IL-1 RI binds directly to IL-1 alpha or IL-1 beta and then associates with IL-1 R accessory protein (IL-1 R3/IL-1 R AcP) to form a high-affinity receptor complex that is competent for signal transduction. IL-1 RII has high affinity for IL-1 beta but functions as a decoy receptor and negative regulator of IL-1 beta activity. IL-1ra functions as a competitive antagonist by preventing IL-1 alpha and IL-1 beta from interacting with IL-1 RI. Intracellular cleavage of the IL-1 beta precursor by Caspase-1/ICE is a key step in the inflammatory response. The 17 kDa molecular weight mature mouse IL-1 beta shares 90% aa sequence identity with cotton rat and rat and 67%-78% with canine, equine, feline, human, porcine, and rhesus macaque IL-1 beta . IL-1 beta functions in a central role in immune and inflammatory responses, bone remodeling, fever, carbohydrate metabolism, and GH/IGF-I physiology. IL-1 beta dysregulation is implicated in many pathological conditions including sepsis, rheumatoid arthritis, inflammatory bowel disease, acute and chronic myelogenous leukemia, insulin-dependent diabetes mellitus, atherosclerosis, neuronal injury, and aging-related diseases.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for IL-1 beta/IL-1F2 Antibody (AF-401-NA)(608)

Publications using AF-401-NA

• Luo, J;Liang, Q;Gong, M;Liu, Y;D'Ursi, P;Zheng, Y;Yang, XD; Oxyphenbutazone suppresses non-canonical inflammasome activation and protects against LPS-induced sepsis International immunopharmacology 2026-05-18 [PMID: 42150290] (Western Blot, Mouse)
• Herr, SM;Stalkopf, D;Padaszus, S;Herbst, LA;Dörrie, A;Niedenthal, R;Ronkina, N;Yakovleva, T;Kotlyarov, A;Gaestel, M; MK2/p38/p53 Suppress Basal IL-1? and Non-Canonical NF-?B Signaling in Macrophages International journal of molecular sciences 2026-04-02 [PMID: 41977413] (Western Blot, Mouse, Transgenic Mouse)
• Park, YH;Batu, ED;Matthiasardottir, B;Kim, Y;Akkaya-Ulum, YZ;Kastner, DL;Chae, JJ; Cofilin-1 is a redox-sensitive guard of the NLRP3 inflammasome Nature immunology 2026-03-18 [PMID: 41851524] (Western Blot, Mouse)
• Zhang, ZH;Wang, XY;Quan, SL;Zeng, ZY;Zhang, KJ;Wu, YL;Zhan, ZY;Nan, JX;Lian, LH; Entadamide A-?-D-glucopyranoside Attenuates Psoriatic Dermatitis by Restoring Keratinocyte Homeostasis and Suppressing Neutrophil Extracellular Traps Journal of ethnopharmacology 2026-03-13 [PMID: 41833762] (Western Blot, Mouse)
• Chen, L;Li, J;Wang, S;Ren, R;Xiong, W;Gan, X;Kang, H;Wen, Y;Li, J;He, L; Daucosterol alleviates osteoarthritis by targeting chondrocyte senescence via inhibiting of the JNK pathway International immunopharmacology 2026-03-02 [PMID: 41775106] (Bioassay, Mouse)
• Montero-Jodra, A;Estebán-Amo, MJ;Fernández-Martínez, SP;García Martínez, C;de la Fuente García, MÁ;García-Concejo, A;Martín-Fernández, M;Tamayo, E;Simarro, M; The KEAP1/NRF2 axis controls LPS-induced oxidative stress, inflammasome activation and caspase-1 activity in human endothelial cells PloS one 2026-02-04 [PMID: 41637413] (Western Blot, Human)
• Yang, H;Liu, W;Zhang, D;Xu, Q;Lee, J;Sun, J;Xue, S;Sun, X;Che, C; IL-24 regulates corneal inflammation and fibrosis in fungal keratitis via the caspase-11/gasdermin D pathway The ocular surface 2026-01-21 [PMID: 41577293] (Western Blot, Mouse)
• Huang, Y;He, Y;Wang, Z;Zhang, F;Han, M;Guo, X;Xie, Y;Wang, J;Ma, X;Dan, J;Deng, Y;Wu, H;Hu, H;Wang, J;Yu, L;Jiang, BC;Yan, M;Ma, L; A positive feedback loop between FGR and p65 sustains satellite glial cell activation and chronic neuropathic pain Cell reports 2026-02-24 [PMID: 41575848] (Neutralization, Mouse)
• Herrmann, BI;Zamba-Campero, M;Garcia-Sillas, R;Yost, WW;Peterson, LW;Roncaioili, JL;Rankin, SC;Schifferli, DM;Ravichandran, K;Brodsky, IE; Innate detection of Salmonella replication triggers caspase-8-dependent apoptosis via TLR-driven TNF signaling and NLRC4-mediated sensing of the SPI-2 Type III secretion system bioRxiv : the preprint server for biology 2025-10-11 [PMID: 40964383] (Western Blot, Mouse)
• Miao, F;Cai, H;Chen, Y;Yan, Z;Jin, R;Dai, Y;Li, L;Wang, H;Xu, Y;Sun, W; NLRP3 inflammasome impairs fracture repair in Rheumatoid arthritis through RhoA/Rac1-IL1? axis-mediated suppression of osteoblast differentiation Journal of orthopaedic translation 2025-09-01 [PMID: 40822518] (Immunohistochemistry, Western Blot, Immunocytochemistry, Mouse)
• Sato, T;Ishikawa, M;Izumi, Y;Shibata, N;Sato, K;Ohno-Oishi, M;Tawarayama, H;Kunikata, H;Zorumski, CF;Nakazawa, T; Involvement of Microglia in Retinal Ganglion Cell Injury Induced by IOP Elevation in a Rat Ex Vivo Acute Glaucoma Model Biomedicines 2025-07-08 [PMID: 40722741] (Western Blot, Rat)
• Chen, X;Zheng, Y;Zhang, X;Zheng, A;Huang, J;Deng, G;Wu, X;Peng, Y;Zhang, X;Chen, R;Xiao, Q;Ye, W; Harnessing FDA-approved dipyridamole to inhibit NLRP3 inflammasome and improve outcomes of acute lung injury in sepsis Toxicology and applied pharmacology 2025-07-01 [PMID: 40360054] (Western Blot, Mouse)
• Kharitonova, A;Patel, RS;Osborne, B;Krause-Hauch, M;Lui, A;Vidyarthi, G;Li, S;Cai, J;Patel, NA; NPC86 Increases LncRNA Gas5 In Vivo to Improve Insulin Sensitivity and Metabolic Function in Diet-Induced Obese Diabetic Mouse Model International journal of molecular sciences 2025-04-14 [PMID: 40332318] (Western Blot, Mouse)
• Son, S;Xu, C;Jang, J;Dinh, M;Skorobogatko, Y;Fu, H;Valentine, JM;An, G;Ying, W;Yu, RT;Downes, M;Evans, RM;Saltiel, AR; Sympathetic activation of white adipose tissue recruits neutrophils to limit energy expenditure Research square 2025-04-16 [PMID: 40321773] (Western Blot, Mouse)
• Xu, H;Xu, H;Li, W;Liang, Z;Luo, W;Sheng, S;Liang, G;Zhang, Z; Modulating the NLRP3 Inflammasome: Acitretin as a potential treatment for Sepsis-induced acute lung injury International immunopharmacology 2025-04-24 [PMID: 40187888] (Western Blot, Mouse)
• Pushpakumar, S;Juin, SK;Almarshood, H;Gondim, DD;Ouseph, R;Sen, U; Diallyl Trisulfide Attenuates Ischemia-Reperfusion-Induced ER Stress and Kidney Dysfunction in Aged Female Mice Cells 2025-03-12 [PMID: 40136669] (Western Blot, Mouse)
• Zhang, SQ;Deng, Q;Tian, C;Zhao, HH;Yang, LY;Cheng, XW;Wang, GP;Liu, D; Costunolide normalizes neuroinflammation and improves neurogenesis deficits in a mouse model of depression through inhibiting microglial Akt/mTOR/NF-?B pathway Acta pharmacologica Sinica 2025-02-26 [PMID: 40011631] (Western Blots, Mouse)
• Chan, FHM;Yeap, HW;Liu, Z;Rosli, SN;Low, KE;Bonne, I;Wu, Y;Chong, SZ;Chen, KW; Plasticity of cell death pathways ensures GSDMD activation during Yersinia pseudotuberculosis infection Cell reports 2025-01-16 [PMID: 39823227] (Western Blot, Mouse)
• Wei, S;Guan, G;Luan, X;Yu, C;Miao, L;Yuan, X;Chen, P;Di, G; NLRP3 inflammasome constrains liver regeneration through impairing MerTK-mediated macrophage efferocytosis Science advances 2025-01-03 [PMID: 39742469] (In vivo assay, Mouse)
• Zhong, X;Wu, H;Zhang, W;Shi, Y;Gwack, Y;Xue, HH;Sun, Z; Distinct ROR?t-dependent Th17 immune responses are required for autoimmune pathogenesis and protection against bacterial infection Cell reports 2024-11-05 [PMID: 39504243] (Neutralization, Mouse)
• Li, D;Yang, Q;Luo, J;Xu, Y;Li, J;Tao, L; Bacterial toxins induce non-canonical migracytosis to aggravate acute inflammation Cell discovery 2024-11-05 [PMID: 39500876] (Immunohistochemistry, Mouse)
• Huynh, P;Hoffmann, JD;Gerhardt, T;Kiss, MG;Zuraikat, FM;Cohen, O;Wolfram, C;Yates, AG;Leunig, A;Heiser, M;Gaebel, L;Gianeselli, M;Goswami, S;Khamhoung, A;Downey, J;Yoon, S;Chen, Z;Roudko, V;Dawson, T;Ferreira da Silva, J;Ameral, NJ;Morgenroth-Rebin, J;D'Souza, D;Koekkoek, LL;Jacob, W;Munitz, J;Lee, D;Fullard, JF;van Leent, MMT;Roussos, P;Kim-Schulze, S;Shah, N;Kleinstiver, BP;Swirski, FK;Leistner, D;St-Onge, MP;McAlpine, CS; Myocardial infarction augments sleep to limit cardiac inflammation and damage Nature 2024-10-30 [PMID: 39478215] (Neutralization, Transgenic Mouse)
• Zhang, ZH;Zhan, ZY;Jiang, M;Wang, XY;Quan, SL;Wu, YL;Nan, JX;Lian, LH; Casting NETs on Psoriasis: The modulation of inflammatory feedback targeting IL-36/IL-36R axis International immunopharmacology 2024-09-21 [PMID: 39306890] (Western Blot, Immunocytochemistry, Mouse)
• Nabukhotna, K;Kordus, SL;Shupe, JA;Cano Rodríguez, R;Smith, A;Bohannon, JK;Washington, MK;Lacy, DB; Purified CDT toxins and a clean deletion within the CDT locus provide novel insights into the contribution of binary toxin in cellular inflammation and Clostridioides difficile infection PLoS pathogens 2024-09-19 [PMID: 39298531] (Western Blot, Mouse)
• Liu, W;Yang, H;Xu, Q;Lee, J;Sun, J;Xue, S;Yang, X;Sun, X;Che, C; Role of MYO1F in neutrophil and macrophage recruitment and pro-inflammatory cytokine production in Aspergillus fumigatus keratitis International immunopharmacology 2024-09-13 [PMID: 39276460] (Western Blot, Mouse)
• Song, M;Deng, M;Peng, Z;Dai, F;Wang, Y;Shu, W;Zhou, X;Zhang, J;Hou, Y;Yu, B; Granulocyte colony-stimulating factor mediates bone loss via the activation of IL-1?/JNK signaling pathway in murine Staphylococcus aureus-induced osteomyelitis International immunopharmacology 2024-08-19 [PMID: 39163688] (In vivo assay, Mouse)
• Yao, Q;Wen, J;Chen, S;Wang, Y;Wen, X;Wang, X;Li, C;Zheng, C;Li, J;Ma, Z;Zhan, X;Xiao, X;Bai, Z; Shuangdan Jiedu Decoction improved LPS-induced acute lung injury by regulating both cGAS-STING pathway and inflammasome Journal of ethnopharmacology 2024-08-17 [PMID: 39159837] (Western Blot, Mouse)
• Wang, M;Flaswinkel, H;Joshi, A;Napoli, M;Masgrau-Alsina, S;Kamper, JM;Henne, A;Heinz, A;Berouti, M;Schmacke, NA;Hiller, K;Kremmer, E;Wefers, B;Wurst, W;Sperandio, M;Ruland, J;Fröhlich, T;Hornung, V; Phosphorylation of PFKL regulates metabolic reprogramming in macrophages following pattern recognition receptor activation Nature communications 2024-07-31 [PMID: 39085210] (Western Blot, Human)
• Sun, Y;Lu, Y;Liu, L;Saaoud, F;Shao, Y;Xu, K;Drummer Iv, C;Cueto, R;Shan, H;Jiang, X;Zhao, H;Wang, H;Yang, X; Caspase-4/11 promotes hyperlipidemia and chronic kidney disease-accelerated vascular inflammation by enhancing trained immunity JCI insight 2024-07-18 [PMID: 39024553] (Western Blot, Human, Transgenic Mouse)
• Yow, SJ;Rosli, SN;Hutchinson, PE;Chen, KW; Differential signalling requirements for RIPK1-dependent pyroptosis in neutrophils and macrophages Cell death & disease 2024-07-04 [PMID: 38965211] (Western Blot, Mouse, Transgenic Mouse)
• Kang, H;Choi, SW;Kim, JY;Oh, SJ;Kim, SJ;Lee, MS; ER-to-lysosome Ca2+ refilling followed by K+ efflux-coupled store-operated Ca2+ entry in inflammasome activation and metabolic inflammation eLife 2024-07-02 [PMID: 38953285] (Western Blot, Mouse)
• Redmer, T;Raigel, M;Sternberg, C;Ziegler, R;Probst, C;Lindner, D;Aufinger, A;Limberger, T;Trachtova, K;Kodajova, P;Högler, S;Schlederer, M;Stoiber, S;Oberhuber, M;Bolis, M;Neubauer, HA;Miranda, S;Tomberger, M;Harbusch, NS;Garces de Los Fayos Alonso, I;Sternberg, F;Moriggl, R;Theurillat, JP;Tichy, B;Bystry, V;Persson, JL;Mathas, S;Aberger, F;Strobl, B;Pospisilova, S;Merkel, O;Egger, G;Lagger, S;Kenner, L; JUN mediates the senescence associated secretory phenotype and immune cell recruitment to prevent prostate cancer progression Molecular cancer 2024-05-29 [PMID: 38811984] (Immunohistochemistry, Human)
• Ge, X;Han, H;Desert, R;Das, S;Song, Z;Komakula, SSB;Chen, W;Athavale, D;Lantvit, D;Nieto, N; A PROTEIN COMPLEX OF LIVER ORIGIN ACTIVATES A PRO-INFLAMMATORY PROGRAM THAT DRIVES HEPATIC AND INTESTINAL INJURY IN ALCOHOL-ASSOCIATED LIVER DISEASE Cellular and molecular gastroenterology and hepatology 2024-05-22 [PMID: 38788899] (Western Blot, Transgenic Mouse)
• Wang, Z;Liu, J;Mou, Y;Liao, W;Li, Y;Liu, J;Tang, J; Anti-inflammatory and uric acid lowering effects of Euodiae fructus on hyperuricemia and gout mice Frontiers in pharmacology 2024-04-19 [PMID: 38708084] (Western Blot, Mouse)
• Liu, A;Hayashi, M;Ohsugi, Y;Katagiri, S;Akira, S;Iwata, T;Nakashima, T; The IL-33/ST2 axis is protective against acute inflammation during the course of periodontitis Nature communications 2024-03-28 [PMID: 38548743] (Immunohistochemistry, Mouse)
• Tran, HT;Kratina, T;Coutansais, A;Michalek, D;Hogan, BM;Lawlor, KE;Vince, JE;Silke, J;Lalaoui, N; RIPK3 cleavage is dispensable for necroptosis inhibition but restricts NLRP3 inflammasome activation Cell death and differentiation 2024-03-21 [PMID: 38514849] (Western Blot, Transgenic Mouse)
• Li, Y;Wu, C;Lee, J;Ning, Q;Lim, J;Eoh, H;Wang, S;Hurrell, BP;Akbari, O;Ou, JJ; Hepatitis B virus e antigen induces atypical metabolism and differentially regulates programmed cell deaths of macrophages PLoS pathogens 2024-03-11 [PMID: 38466743] (Human)
• Gleeson, TA;Kaiser, C;Lawrence, CB;Brough, D;Allan, SM;Green, JP; The NLRP3 inflammasome is essential for IL-18 production in a murine model of macrophage activation syndrome bioRxiv : the preprint server for biology 2024-03-01 [PMID: 38464243] (Western Blot, Mouse)
• Zhan, ZY;Zhang, ZH;Sun, RH;Wu, YL;Nan, JX;Lian, LH; A therapeutic strategy of parthenolide in improving imiquimod-induced psoriasis-like skin inflammation targeting IL-36/NETs through skin transdermal therapeutic system International immunopharmacology 2024-03-09 [PMID: 38461633] (Western Blot, Mouse)
• Cao, F;Chen, G;Xu, Y;Wang, X;Tang, X;Zhang, W;Song, X;Yang, X;Zeng, W;Xie, J; METTL14 contributes to acute lung injury by stabilizing NLRP3 expression in an IGF2BP2-dependent manner Cell death & disease 2024-01-13 [PMID: 38218935] (Western Blot, Mouse)
• Lee, S;Yun, S;Yang, H;Lee, N;Kim, Y;Lee, S;Zamora, NA;Montero, SS;Yi, DK;Kim, SY;Choi, S;Choi, T;Kim, MS;Lee, Y;Park, YH; Guarea microcarpa C. DC. extract inhibits NLRP3 inflammasome by suppressing its ATPase activity Journal of ethnopharmacology 2024-01-03 [PMID: 38176663] (Western Blot, Mouse)
• Exconde, PM;Hernandez-Chavez, C;Bourne, CM;Richards, RM;Bray, MB;Lopez, JL;Srivastava, T;Egan, MS;Zhang, J;Yoo, W;Shin, S;Discher, BM;Taabazuing, CY; The tetrapeptide sequence of IL-18 and IL-1? regulates their recruitment and activation by inflammatory caspases Cell reports 2023-12-15 [PMID: 38103201] (Western Blot, Bioassay, Human)
• Cho, E;Mun, SJ;Kim, HK;Ham, YS;Gil, WJ;Yang, CS; Colon-targeted S100A8/A9-specific peptide systems ameliorate colitis and colitis-associated colorectal cancer in mouse models Acta pharmacologica Sinica 2023-12-01 [PMID: 38040838] (Western Blot, Mouse)
• McCrory, C;Verma, J;Tucey, TM;Turner, R;Weerasinghe, H;Beilharz, TH;Traven, A; The short-chain fatty acid crotonate reduces invasive growth and immune escape of Candida albicans by regulating hyphal gene expression mBio 2023-11-06 [PMID: 37929941] (Western Blot, Mouse)
• Caronni, N;La Terza, F;Vittoria, FM;Barbiera, G;Mezzanzanica, L;Cuzzola, V;Barresi, S;Pellegatta, M;Canevazzi, P;Dunsmore, G;Leonardi, C;Montaldo, E;Lusito, E;Dugnani, E;Citro, A;Ng, MSF;Schiavo Lena, M;Drago, D;Andolfo, A;Brugiapaglia, S;Scagliotti, A;Mortellaro, A;Corbo, V;Liu, Z;Mondino, A;Dellabona, P;Piemonti, L;Taveggia, C;Doglioni, C;Cappello, P;Novelli, F;Iannacone, M;Ng, LG;Ginhoux, F;Crippa, S;Falconi, M;Bonini, C;Naldini, L;Genua, M;Ostuni, R; IL-1?+ macrophages fuel pathogenic inflammation in pancreatic cancer Nature 2023-11-01 [PMID: 37914939] (IHC, Mouse)
• Meibers, HE;Warrick, KA;VonHandorf, A;Vallez, CN;Kawarizadeh, K;Saha, I;Donmez, O;Jain, VG;Kottyan, LC;Weirauch, MT;Pasare, C; Effector memory T cells induce innate inflammation by triggering DNA damage and a non-canonical STING pathway in dendritic cells Cell reports 2023-09-27 [PMID: 37794597] (Flow Cytometry, Western Blot, Mouse)
• Wong, MP;Juan, EYW;Chelluri, SS;Wang, P;Pahmeier, F;Castillo-Rojas, B;Blanc, SF;Biering, SB;Vance, RE;Harris, E; The Inflammasome Pathway is Activated by Dengue Virus Non-structural Protein 1 and is Protective During Dengue Virus Infection bioRxiv : the preprint server for biology 2023-09-21 [PMID: 37790301] (Western Blot, Mouse)
• Shosha, E;Shahror, RA;Morris, CA;Xu, Z;Lucas, R;McGee-Lawrence, ME;Rusch, NJ;Caldwell, RB;Fouda, AY; The arginase 1/ornithine decarboxylase pathway suppresses HDAC3 to ameliorate the myeloid cell inflammatory response: implications for retinal ischemic injury Cell death & disease 2023-09-21 [PMID: 37735154] (IHC, Western Blot, Mouse)
• Didi Liu, Yi Huang Protocol for in vivo and in vitro activation of NLRP3 inflammasome in mice using monosodium urate STAR Protoc 9/7/2023 [PMID: 37682717]
• Liu H, Zhang L, Liu Z et al. Galectin-3 as TREM2 upstream factor contributes to lung ischemia-reperfusion injury by regulating macrophage polarization iScience 9/15/2023 [PMID: 37636061]
• Liu H, Zhang L, Liu Z et al. Galectin-3 as TREM2 upstream factor contributes to lung ischemia-reperfusion injury by regulating macrophage polarization iScience 2023-09-15 [PMID: 37636061]
• Sin, R;Sotogaku, N;Ohnishi, YN;Shuto, T;Kuroiwa, M;Kawahara, Y;Sugiyama, K;Murakami, Y;Kanai, M;Funakoshi, H;Chakraborti, A;Bibb, JA;Nishi, A; Inhibition of STAT-mediated cytokine responses to chemically-induced colitis prevents inflammation-associated neurobehavioral impairments Brain, behavior, and immunity 2023-08-23 [PMID: 37625556] (Western Blot, Mouse)
• Ciana Diskin, Emily A. Day, Órlaith C. Henry, Juliana E. Toller-Kawahisa, Luke A. J. O’Neill 4-Octyl Itaconate and Dimethyl Fumarate Induce Secretion of the Anti-Inflammatory Protein Annexin A1 via NRF2 The Journal of Immunology 9/15/2023 [PMID: 37578391]
• Rondeaux, J;Groussard, D;Renet, S;Tardif, V;Dumesnil, A;Chu, A;Di Maria, L;Lemarcis, T;Valet, M;Henry, JP;Badji, Z;Vézier, C;Béziau-Gasnier, D;Neele, AE;de Winther, MPJ;Guerrot, D;Brand, M;Richard, V;Durand, E;Brakenhielm, E;Fraineau, S; Ezh2 emerges as an epigenetic checkpoint regulator during monocyte differentiation limiting cardiac dysfunction post-MI Nature communications 2023-07-25 [PMID: 37491334] (IHC, Mouse)
• Bai, Y;Min, R;Chen, P;Mei, S;Deng, F;Zheng, Z;Jiang, C;Miao, R;Wu, Z;Zhang, P;Pan, Y;Lieberman, J;Liu, X; Disulfiram blocks inflammatory TLR4 signaling by targeting MD-2 Proceedings of the National Academy of Sciences of the United States of America 2023-08-01 [PMID: 37487070] (Western Blot, Mouse)
• Veronica Mutti, Giulia Carini, Alice Filippini, Stefania Castrezzati, Lorena Giugno, Massimo Gennarelli et al. LRRK2 Kinase Inhibition Attenuates Neuroinflammation and Cytotoxicity in Animal Models of Alzheimer’s and Parkinson’s Disease-Related Neuroinflammation Cells 7/6/2023 [PMID: 37443833]
• Bingwei Wang, Yan Ma, Sheng Li, Hang Yao, Mingna Gu, Ying Liu et al. GSDMD in peripheral myeloid cells regulates microglial immune training and neuroinflammation in Parkinson's disease Acta Pharmaceutica Sinica B 6/1/2023 [PMID: 37425058]
• Germana Lentini, Agata Famà, Giuseppe Valerio De Gaetano, Francesco Coppolino, Ahlem Khachroub Mahjoub, Liv Ryan et al. Caspase-8 inhibition improves the outcome of bacterial infections in mice by promoting neutrophil activation Cell Reports Medicine 7/18/2023 [PMID: 37390829]
• Yingting Hou, Hongbin He, Ming Ma, Rongbin Zhou Apilimod activates the NLRP3 inflammasome through lysosome-mediated mitochondrial damage Frontiers in Immunology 6/8/2023 [PMID: 37359517]
• Leem YH, Kim DY, Park JE, Kim HS Necrosulfonamide exerts neuroprotective effect by inhibiting necroptosis, neuroinflammation, and ?-synuclein oligomerization in a subacute MPTP mouse model of Parkinson's disease Scientific reports 5/31/2023 [PMID: 37258791]
• Fang L, Ohashi K, Hayakawa S et al. Adipolin protects against renal injury via PPAR?-dependent reduction of inflammasome activation iScience 2023-05-01 [PMID: 37250342]
• Fang L, Ohashi K, Hayakawa S et al. Adipolin protects against renal injury via PPAR?-dependent reduction of inflammasome activation iScience 5/1/2023 [PMID: 37250342]
• Zhang, Z;Song, J;Kwon, SH;Wang, Z;Park, SG;Piao, X;Ryu, JH;Kim, N;Kim, OS;Kim, SH;Koh, JT; Pirfenidone Inhibits Alveolar Bone Loss in Ligature-Induced Periodontitis by Suppressing the NF-?B Signaling Pathway in Mice International journal of molecular sciences 2023-05-12 [PMID: 37240020] (IHC, Mouse)
• Jack P. Green, Lina Y. El-Sharkawy, Stefan Roth, Jie Zhu, Jiayu Cao, Andrew G. Leach et al. Discovery of an inhibitor of DNA-driven inflammation that preferentially targets the AIM2 inflammasome iScience 2023-05-19 [PMID: 37216118] (Western Blot, Mouse)
• Jack P. Green, Lina Y. El-Sharkawy, Stefan Roth, Jie Zhu, Jiayu Cao, Andrew G. Leach et al. Discovery of an inhibitor of DNA-driven inflammation that preferentially targets the AIM2 inflammasome iScience 5/19/2023 [PMID: 37216118]
• Weerasinghe, H;Simm, C;Djajawi, TM;Tedja, I;Lo, TL;Simpson, DS;Shasha, D;Mizrahi, N;Olivier, FAB;Speir, M;Lawlor, KE;Ben-Ami, R;Traven, A; Candida auris uses metabolic strategies to escape and kill macrophages while avoiding robust activation of the NLRP3 inflammasome response Cell reports 2023-05-18 [PMID: 37204928] (Western Blot, Mouse)
• Foster, SL;Dutton, AJ;Yerzhan, A;March, LB;Barry, K;Seehus, CR;Huang, X;Talbot, S;Woolf, CJ; A Preliminary Study of Mild Heat Stress on Inflammasome Activation in Murine Macrophages Cells 4/19/2023 [PMID: 37190098]
• Ren, M;Chen, J;Xu, H;Li, W;Wang, T;Chi, Z;Lin, Y;Zhang, A;Chen, G;Wang, X;Sun, X;Liang, G;Wang, J;Luo, W; Ergolide covalently binds NLRP3 and inhibits NLRP3 inflammasome-mediated pyroptosis International immunopharmacology 2023-05-12 [PMID: 37182452] (Western Blot, Transgenic Mouse, Mouse)
• Liu, L;Feng, L;Gao, J;Hu, J;Li, A;Zhu, Y;Zhang, C;Qiu, B;Shen, Z; Parthenolide targets NLRP3 to treat inflammasome-related diseases International immunopharmacology 2023-06-01 [PMID: 37167640] (Bioassay, Mouse)
• Huang, LS;Anas, M;Xu, J;Zhou, B;Toth, PT;Krishnan, Y;Di, A;Malik, AB; Endosomal trafficking of two-pore K+ efflux channel TWIK2 to plasmalemma mediates NLRP3 inflammasome activation and inflammatory injury eLife 2023-05-09 [PMID: 37158595] (Mouse)
• Siopi, E;Galerne, M;Rivagorda, M;Saha, S;Moigneu, C;Moriceau, S;Bigot, M;Oury, F;Lledo, PM; Gut microbiota changes require vagus nerve integrity to promote depressive-like behaviors in mice Molecular psychiatry 2023-05-02 [PMID: 37131071] (Western Blot, Mouse)
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  Dilutions: 1:1000
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  Details:
  PKM1 antibody used for WB on lysates of LPS-stimulated bone marrow derived macrophages/BMDMs which were isolated from C57BL/6 mice (Figure 1D). WB also performed on BMDMs from mice carrying a PKM2fl/fl allele and relative PKM2+/+ controls were treated or not with 600 nM Tamoxifen for 72 hours, followed by LPS for 24 hours (Figure 5C).
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  Details:
  Inhibition of S. aureus (Fig 6C) and MRSA (Fig 6D) activation in mouse neutrophils isolated from mouse bone marrow. The glibenclamide inhibitor was used at 100 micromolar. Readout assay: IL-1B production. Glibenclamide inhibited IL-1B production by about
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• Zachary L. Newman, Devorah Crown, Stephen H. Leppla, Mahtab Moayeri Anthrax lethal toxin activates the inflammasome in sensitive rat macrophages Biochemical and Biophysical Research Communications 2010-08-06 [PMID: 20638366] (Western Blot, Rat)
• Zachary L. Newman, Devorah Crown, Stephen H. Leppla, Mahtab Moayeri Anthrax lethal toxin activates the inflammasome in sensitive rat macrophages Biochemical and Biophysical Research Communications 8/6/2010 [PMID: 20638366]
• Petr Broz, Kim Newton, Mohamed Lamkanfi, Sanjeev Mariathasan, Vishva M. Dixit, Denise M. Monack Redundant roles for inflammasome receptors NLRP3 and NLRC4 in host defense against Salmonella Journal of Experimental Medicine 2010-08-02 [PMID: 20603313] (Western Blot, Immunocytochemistry, Mouse, Transgenic Mouse)
• Petr Broz, Kim Newton, Mohamed Lamkanfi, Sanjeev Mariathasan, Vishva M. Dixit, Denise M. Monack Redundant roles for inflammasome receptors NLRP3 and NLRC4 in host defense against Salmonella Journal of Experimental Medicine 8/2/2010 [PMID: 20603313]
• Ohno T, Oboki K, Kajiwara N, Morii E, Aozasa K, Flavell RA, Okumura K, Saito H, Nakae S Caspase-1, caspase-8, and calpain are dispensable for IL-33 release by macrophages. J. Immunol., 2009-12-15;183(12):7890-7. 2009-12-15 [PMID: 19933859] (MUSTag PCR Assay, Mouse)
• Ghiringhelli F, Apetoh L, Tesniere A, Aymeric L, Ma Y, Ortiz C, Vermaelen K, Panaretakis T, Mignot G, Ullrich E, Perfettini JL, Schlemmer F, Tasdemir E, Uhl M, Genin P, Civas A, Ryffel B, Kanellopoulos J, Tschopp J, Andre F, Lidereau R, McLaughlin NM, Haynes NM, Smyth MJ, Kroemer G, Zitvogel L Activation of the NLRP3 inflammasome in dendritic cells induces IL-1beta-dependent adaptive immunity against tumors. Nat. Med., 2009-09-20;15(10):1170-8. 2009-09-20 [PMID: 19767732] (Neutralization, Mouse)
• Martin U, Scholler J, Gurgel J, Renshaw B, Sims JE, Gabel CA Externalization of the leaderless cytokine IL-1F6 occurs in response to lipopolysaccharide/ATP activation of transduced bone marrow macrophages. J. Immunol., 2009-08-28;183(6):4021-30. 2009-08-28 [PMID: 19717513] (Western Blot, Mouse)
• Babelova A, Moreth K, Tsalastra-Greul W, Zeng-Brouwers J, Eickelberg O, Young MF, Bruckner P, Pfeilschifter J, Schaefer RM, Schaefer R, Grone HJ, Schaefer L Biglycan, a danger signal that activates the NLRP3 inflammasome via toll-like and P2X receptors. J Biol Chem, 2009-07-15;284(36):24035-48. 2009-07-15 [PMID: 19605353] (IHC-P, Mouse)
• Hyvarinen K, Tuomainen AM, Laitinen S, Bykov IL, Tormakangas L, Lindros K, Käkelä R, Alfthan G, Salminen I, Jauhiainen M, Kovanen PT, Leinonen M, Saikku P, Pussinen PJ Chlamydial and periodontal pathogens induce hepatic inflammation and fatty acid imbalance in apolipoprotein E-deficient mice. Infect. Immun., 2009-05-18;77(8):3442-9. 2009-05-18 [PMID: 19451238] (IHC-P, Mouse)
• Maelfait J, Vercammen E, Janssens S, Schotte P, Haegman M, Magez S, Beyaert R Stimulation of Toll-like receptor 3 and 4 induces interleukin-1beta maturation by caspase-8. J. Exp. Med., 2008-08-25;205(9):1967-73. 2008-08-25 [PMID: 18725521] (Western Blot, Mouse)
• Das S, Mishra MK, Ghosh J, Basu A Japanese Encephalitis Virus infection induces IL-18 and IL-1beta in microglia and astrocytes: correlation with in vitro cytokine responsiveness of glial cells and subsequent neuronal death. J. Neuroimmunol., 2008-03-28;195(1):60-72. 2008-03-28 [PMID: 18374991] (IHC-Fr, Western Blot, Mouse)
• Pozsgai G, Sandor K, Perkecz A, Szolcsanyi J, Helyes Z, Brain SD, Pinter E Topical acetone treatment induces neurogenic oedema on the sensitized mouse ear: an in vivo study using transient receptor potential vanilloid 1 (TRPV1) receptor knockout mice. Inflamm. Res., 2007-11-01;56(11):459-67. 2007-11-01 [PMID: 18224287] (Neutralization, Mouse)
• M. Galle, P. Schotte, M. Haegman, A. Wullaert, H. J. Yang, S. Jin et al. The Pseudomonas aeruginosa Type III secretion system plays a dual role in the regulation of caspase-1 mediated IL-1beta maturation Journal of Cellular and Molecular Medicine 9/1/2008 [PMID: 18081695]
• Miller LS, Pietras EM, Uricchio LH, Hirano K, Rao S, Lin H, O'Connell RM, Iwakura Y, Cheung AL, Cheng G, Modlin RL Inflammasome-mediated production of IL-1beta is required for neutrophil recruitment against Staphylococcus aureus in vivo. J. Immunol., 2007-11-15;179(10):6933-42. 2007-11-15 [PMID: 17982084] (Western Blot, Mouse)
• Ogiso T, Nagaki M, Takai S, Tsukada Y, Mukai T, Kimura K, Moriwaki H Granulocyte colony-stimulating factor impairs liver regeneration in mice through the up-regulation of interleukin-1beta. J. Hepatol., 2007-08-10;47(6):816-25. 2007-08-10 [PMID: 17869372] (Neutralization, Mouse)
• Medeiros MM, Peixoto JR, Oliveira AC, Cardilo-Reis L, Koatz VL, Van Kaer L, Previato JO, Mendonca-Previato L, Nobrega A, Bellio M Toll-like receptor 4 (TLR4)-dependent proinflammatory and immunomodulatory properties of the glycoinositolphospholipid (GIPL) from Trypanosoma cruzi. J. Leukoc. Biol., 2007-05-31;82(3):488-96. 2007-05-31 [PMID: 17540734] (Neutralization, Mouse)
• Shchors K, Shchors E, Rostker F, Lawlor ER, Brown-Swigart L, Evan GI The Myc-dependent angiogenic switch in tumors is mediated by interleukin 1beta. Genes Dev., 2006-09-15;20(18):2527-38. 2006-09-15 [PMID: 16980582] (Neutralization, Mouse)
• Perrin FE, Lacroix S, Aviles-Trigueros M, David S Involvement of monocyte chemoattractant protein-1, macrophage inflammatory protein-1alpha and interleukin-1beta in Wallerian degeneration. Brain, 2005-02-02;128(0):854-66. 2005-02-02 [PMID: 15689362] (Neutralization, Mouse)
• Banks WA, Farr SA, La Scola ME Intravenous human interleukin-1alpha impairs memory processing in mice: dependence on blood-brain barrier transport into posterior division of the septum. J. Pharmacol. Exp. Ther., 2001-11-01;299(2):536-41. 2001-11-01 [PMID: 11602664] (Neutralization, Mouse)

Reviews for IL-1 beta/IL-1F2 Antibody (AF-401-NA) (3)

Average Rating: 4.3

(Based on 3 reviews)

We have 3 reviews tested in 1 species: Mouse.

reviewed by: Verified Customer WB Mouse 01/08/2015

Summary

• Application: Western Blot
• Sample Tested: See PMID 23160153
• Species: Mouse

reviewed by: Verified Customer ICC Mouse 01/08/2015

Summary

• Application: Immunocytochemistry
• Sample Tested: See PMID 23920123
• Species: Mouse

reviewed by: Verified Customer ELISA Mouse 01/08/2015

Summary

• Application: ELISA
• Sample Tested: See PMID 21709053
• Species: Mouse

Bioinformatics

• Gene Symbol: IL1B
• Uniprot:
  • NP_032387()