Human Oncostatin M/OSM APC-conjugated Antibody

  • Species Reactivity
  • Specificity
    Detects human Oncostatin M/OSM in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant mouse Oncostatin M, recombinant human (rh) CLC, rhCNTF, rhCardiotrophin-1, rhIL-6, rhIL-11, or rhLIF is observed.
  • Source
    Monoclonal Mouse IgG2A Clone # 17022
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    E. coli-derived recombinant human Oncostatin M/OSM
    Accession # P13725
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
  • Intracellular Staining by Flow Cytometry
    10 µL/106 cells
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Intracellular Staining by Flow Cytometry
Detection of Oncostatin M/OSM in Human Dendritic Cells by Flow Cytometry. Human dendritic cells stimulated with LPS were stained with Mouse Anti-Human Oncostatin M/OSM APC‑conjugated Monoclonal Antibody (Catalog # IC2951A, filled histogram) or isotype control antibody (Catalog # IC003A, open histogram). View our protocol for Staining Intracellular Molecules.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Protect from light. Do not freeze.
    • 12 months from date of receipt, 2 to 8 °C as supplied.
Background: Oncostatin M/OSM
Oncostatin M (OSM) is a cytokine originally isolated from medium conditioned by PMA-treated U-937 human histiocytic leukemia cells based on its ability to inhibit growth of A375 melanoma cells. The human OSM cDNA encodes a 252 amino acid pre-pro-OSM polypeptide with a 25 residue hydrophobic signal peptide and a hydrophilic C-terminal domain that are proteolytically processed to generate the 196 residue mature form of OSM. Although both mature and pro-OSM are equally active in radio-receptor assays, the mature OSM is 5- to 60-fold more active in growth inhibition assays. Thus, proteolytic processing of the pro-OSM peptide may be important in regulating the in vivo activities of OSM.


OSM is a pleiotropic cytokine that initiates its biological activities by binding to specific cell surface receptors. The biological activity of human OSM is 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. The gp130, a signal transducing component ( beta  subunit) of the IL-6, LIF and CNTF receptor complexes, was identified as a low-affinity OSM receptor that does not transduce OSM signals. The low affinity LIF receptor (LIF R, a gp130-related protein) has been identified to be a component of a high-affinity OSM receptor that will transduce OSM signals. Besides its growth inhibitory activities on human A375 melanoma and mouse M1 myeloid leukemic cells, as well as on other solid tumor cells, OSM also has growth stimulatory activities on normal fibroblasts, AIDS-Kaposi’s sarcoma cells, and a human erythroleukemia cell line, TF-1. Other OSM-mediated activities reported to date include: stimulation of plasminogen activator activity in cultured bovine aortic endothelial cells; regulation of IL-6 expression in human endothelial cells; and stimulation of LDL uptake and up-regulation of cell surface LDL receptors in HepG2 cells.

  • Entrez Gene IDs:
    5008 (Human); 18413 (Mouse)
  • Alternate Names:
    MGC20461; oncostatin M; oncostatin-M
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG2A APC-conjugated Antibody

Ctrl IC003A 1  
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Staining Reagents
Description Application Cat# Citations Images  

Flow Cytometry Permeabilization/Wash Buffer I (1X)

Flow FC005 4
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Flow Cytometry Fixation Buffer (1X)

Flow FC004 3
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Flow Cytometry Fixation & Permeabilization Buffer Kit I

Flow FC009
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Flow Cytometry Fixation/Permeabilization Buffer I (1X)

Flow FC007
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