ED50 < 10 ng/mL, measured by a cell proliferation assay using TF-1 cells, corresponding to a specific activity of > 1x 10^5 units/mg. AA 26-252, expressed with an N-terminal Met.
Lyophilized recombinant human Oncostatin M (rhOSM) remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, rhOSM should be stable up to 2 weeks at 4 °C or up to 3 months at -20 °C.
OSM Protein, OncoM Protein, oncostatin M Protein, OSM Protein, Osm Protein
Hintergrund
Oncostatin M (OSM) is a multifunctional cytokine, and belongs to Interleukin-6 (IL-6) subfamily, including IL-11, leukemia inhibitory factor (LIF), ciliary neurotropic factor, cardiotrophin-1, and novel neurotropin-1. In vivo, OSM is secreted from activated T cells, monocytes, neutrophils, and endothelial cells. OSM is related to LIF, and share a receptor with LIF in human. Human OSM can bind to gp130 and recruit OSM Receptor beta or LIF Receptor beta to form a ternary complex. OSM stimulates the growth of different types of cells, including megakaryocytes, fibroblasts, vascular endothelial cells, and T cells. On the other hand, OSM inhibits the proliferation of several cancer cell lines, such as solid tissue tumor cells, lung cancer cells, melanoma cells, and breast cancer cells.Recombinant human Oncostatin M (rhOSM) produced in E. coli is a single non-glycosylated polypeptide chain containing 228 amino acids. A fully biologically active molecule, rhOSM has a molecular mass of 25.9 kDa analyzed by reducing SDS-PAGE. Synonyms: OSM