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405-ML) stimulates proliferation in the TF-1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse IL-5 (0.5 ng/mL) is neutralized (green line) by increasing concentrations of Rat Anti-Human/Mouse IL-5 Monoclonal Antibody (Catalog # MAB405). The ND50 is typically 0.004-0.015 µg/mL." class="big_lightbox" target="_blank">
MAB002, open histogram), followed by Fluorescein-conjugated Anti-Mouse IgG F(ab')2Secondary Antibody (Catalog # F0103B). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin." class="big_lightbox" target="_blank">
IL-5 (T cell replacing factor (TRF), eosinophil differentiation factor (EDF)) is a hematopoietic growth factor that stimulates the proliferation, differentiation and activation of eosinophils. It is produced by mast cells, T cells and eosinophils and has an important role in activating cell-mediated immunity following parasitic infections. It belongs to the same cytokine family as IL-3 and GM-CSF. The biologically active IL-5 consists of an antiparallel homodimer linked by disulfide bonds. Human and murine IL-5 are 70% identical at the amino acid level and show species cross-reactivity. IL-5 exerts its effects on target cells by binding to specific cell surface receptors.