| Code | CSB-AP002241HU |
| Abbreviation | Recombinant Human OSM protein, partial (Active) |
| MSDS | |
| Size | $354 |
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Oncostatin M is a pleiotropic IL-6 family cytokine that signals through JAK/STAT, MAPK, and NF-κB pathways, making it central to studies of inflammation, hematopoiesis, and tumor microenvironment remodeling. This tag-free recombinant human OSM (residues 26–234) delivers high signaling potency, with an ED50 below 2 ng/ml in a TF-1 cell proliferation assay corresponding to a specific activity exceeding 5.0 × 10⁵ IU/mg, providing a reliable basis for dose-dependent functional assays, STAT3 phosphorylation studies, and macrophage or hepatocyte differentiation experiments. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts that can confound cytokine-specific readouts in primary immune cell cultures and in vivo inflammation models. Purity above 97% by SDS-PAGE, combined with this stringent endotoxin control, supports use as a reference standard in cytokine detection assays and as a positive control for antibody validation by ELISA or Western blot.
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