Measured by its ability to neutralize Oncostatin M/OSM-induced proliferation in the NIH‑3T3 mouse embryonic fibroblast cell line. The Neutralization Dose (ND50) is typically 0.2-1.2 µg/mL in the presence of 1 ng/mL Recombinant Mouse Oncostatin M/OSM.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Cell Proliferation Induced by Oncostatin M/OSM and Neutralization by Mouse Oncostatin M/OSM Antibody
Recombinant Mouse Oncostatin M/OSM (Catalog # 495-MO) stimulates proliferation in the NIH-3T3 mouse embryonic fibroblast cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse Oncostatin M/OSM (1 ng/mL) is neutralized (green line) by increasing concentrations of Rat Anti-Mouse Oncostatin M/OSM Monoclonal Antibody (Catalog # MAB4951). The ND50 is typically 0.2-1.2 µg/mL.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.
Background: Oncostatin M/OSM
Oncostatin M (OSM) is a member of a cytokine subfamily that includes IL-6, IL-11, LIF, CNTF, and Cardiotrophin-1. These cytokines have overlapping biological functions and shared receptor components. Mouse OSM was cloned and identified as an immediate early gene induced in various myeloid and lymphoid cell lines by a subset of cytokines including IL-2, IL-3, GM-CSF, and Erythropoietin. The mouse OSM cDNA encodes a 263 amino acid residue precursor protein that shows 48% identity with human OSM. Similar to human OSM, the C-terminal region of mouse OSM contains a highly charged region. Deletion of this C-terminal region appears to be essential for the formation of biologically active mouse OSM. The biological activity of human OSM has been shown to be mediated either by the LIF/OSM receptor complex composed of gp130 and LIF R alpha or by a human OSM specific receptor composed of gp130 and OSM R alpha. It remains to be determined if the biological activities of mouse OSM can also be mediated by both receptor complexes in mouse cells.
Yoshimura, A. et al. (1996) EMBO J. 15:1055.
Ray, P. et al. (1996) Endocrinology 137:1151.
Rose, T.M. and A.G. Bruce (1994) in Guidebook to Cytokines and Their Receptors, N.A. Nicola, editor, Oxford University Press, New York, p. 127.
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