GM-CSF Antibody (83308)

Recombinant Rat GM‑CSF (Catalog # 518-GM) stimulates proliferation in the DA3 mouse myeloma cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Rat GM‑CSF (0.5 ng/mL) is neutralized (green line) by increasing concentrations of Rat GM‑CSF Monoclonal Antibody (Catalog # MAB5181). The ND50 is typically 1-4 µg/mL.

GM-CSF was detected in immersion fixed rat splenocytes using Rat GM-CSF Monoclonal Antibody (Catalog # MAB5181) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

• Reactivity: Rt
• Applications: WB, B/N, CyTOF-ready, Flow, ICC/IF
• Clone: 83308
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated

GM-CSF Antibody (83308) Summary

• Immunogen: E. coli-derived recombinant rat GM-CSF
  Ala1-Lys127
  Accession # P48750
• Specificity: Detects rat GM-CSF in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant GM‑CSF from mouse, human, or pig is observed.
• Source: N/A
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Gene: CSF2
• Purity Statement: Protein A or G purified from hybridoma culture supernatant
• Endotoxin Note: <0.10 EU per 1 μg of the antibody by the LAL method.

Applications/Dilutions

• Dilutions:
  • CyTOF-ready
  • Immunocytochemistry 8-25 ug/mL
  • Intracellular Staining by Flow Cytometry 2.5 ug/10^6 cells
  • Neutralization 1-4 ug/mL
  • Western Blot 1 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. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

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

Alternate Names for GM-CSF Antibody (83308)

• colony stimulating factor 2 (granulocyte-macrophage)
• Colony-stimulating factor
• CSF
• CSF2
• CSF-2
• GMCSF
• GM-CSF
• GMCSFgranulocyte-macrophage colony-stimulating factor
• granulocyte-macrophage colony stimulating factor
• MGC131935
• MGC138897
• Molgramostim
• molgramostin
• Sargramostim

Background

GM-CSF was initially characterized as a factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is also a growth factor for erythroid, megakaryocyte, and eosinophil progenitors. GM-CSF is produced by a number of different cell types (including T cells, B cells, macrophages, mast cells, endothelial cells, fibroblasts, and adipocytes) in response to cytokine or inflammatory stimuli. On mature hematopoietic cells, GM-CSF is a survival factor for and activates the effector functions of granulocytes, monocytes/macrophages, and eosinophils (1, 2). GM-CSF promotes a Th1 biased immune response, angiogenesis, allergic inflammation, and the development of autoimmunity (3‑5). It shows clinical effectiveness in ameliorating chemotherapy-induced neutropenia, and GM-CSF transfected tumor cells are utilized as cancer vaccines (6, 7). The 22 kDa glycosylated GM-CSF, similar to IL‑3 and IL‑5, is a cytokine with a core of four bundled alpha ‑helices (8‑10). Mature rat GM-CSF shares 56%‑69% amino acid sequence identity with canine, feline, human, mouse, and porcine GM‑CSF. GM‑CSF exerts its biological effects through a heterodimeric receptor complex composed of GM‑CSF R alpha /CD116 and the signal transducing common beta chain (CD131) which is also a component of the high-affinity receptors for IL-3 and IL-5 (11, 12). In addition, GM-CSF binds a naturally occurring soluble form of GM‑CSF R alpha (13). Rat GM‑CSF is active on mouse cells, although mouse GM‑CSF is only weakly active on rat cells (14, 15).

1. Martinez-Moczygemba, M. and D.P. Huston (2003) J. Allergy Clin. Immunol. 112:653.
2. Barreda, D.R. et al. (2004) Dev. Comp. Immunol. 28:509.
3. Eksioglu, E.A. et al. (2007) Exp. Hematol. 35:1163.
4. Cao, Y. (2007) J. Clin. Invest. 117:2362.
5. Fleetwood, A.J. et al. (2005) Crit. Rev. Immunol. 25:405.
6. Heuser, M. et al. (2007) Semin. Hematol. 44:148.
7. Hege, K.M. et al. (2006) Int. Rev. Immunol. 25:321.
8. Kaushansky, K. et al. (1992) Biochemistry 31:1881.
9. Diederichs, K. et al. (1991) Science 254:1779.
10. Smith, L.R. et al. (1994) Immunogenetics 39:80.
11. Onetto-Pothier, N. et al. (1990) Blood 75:59.
12. Hayashida, K. et al. (1990) Proc. Natl. Acad. Sci. 87:9655.
13. Pelley, J.L. et al. (2007) Exp. Hematol. 35:1483.
14. Oaks, M.K. et al. (1995) J. Interferon Cytokine Res. 15:1095.
15. Vandenabeele, P. et al. (1990) Lymphokine Res. 9:381.

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 GM-CSF Antibody (MAB5181)(2)

Publications using MAB5181

• Stojic-Vukanic Z, Nacka-Aleksic M, Pilipovic I, Vujnovic I, Blagojevic V, Kosec D, Dimitrijevic M, Leposavic G Aging diminishes the resistance of AO rats to EAE: putative role of enhanced generation of GM-CSF Expressing CD4+ T cells in aged rats. Immun Ageing, 2015-10-06;12(0):16. 2015-10-06 [PMID: 26448779] (Flow Cytometry, Rat)
• Sousa R, Halper J, Zhang J Effect of Lactobacillus acidophilus supernatants on body weight and leptin expression in rats. BMC Complement Altern Med, 2008-02-19;8(0):5. 2008-02-19 [PMID: 18284678] (IHC-P, Rat)

Bioinformatics

• Gene Symbol: CSF2
• Uniprot:
  • P48750()