Purified recombinant Human IL3 protein Expression System: E.coli Bioactivity: The ED50 as determined by the dose-dependent stimulation of the proliferation of human TF-1 cells is ? 0.1 ng/mL, corresponding to a specific activity of ? 1 x 10^7 units/mg.
IL3 is a hematopoietic growth factor that promotes the survival, differentiation and proliferation of committed progenitor cells of the megakaryocyte, granulocyte-macrophage, erythroid, eosinophil, basophil and mast cell lineages. Produced by T cells, mast cells and eosinophils, IL3 enhances thrombopoieses, phagocytosis, and antibody-mediated cellular cytotoxicity. Its ability to activate monocytes suggests that IL3 may have additional immunoregulatory roles. Many of the IL3 activities depend upon co-stimulation with other cytokines. Alternative Names: IL-3 protein, Multi-CSF protein, Interleukin 3 protein, HCGF protein, IL-3, IL 3, IL-3 protein, IL 3 protein, Mast cell growth factor protein, MCGF protein, P-cell stimulation factor protein, IL3