| Code | CSB-AP004001HU |
| Abbreviation | Recombinant Human LIF protein (Active) |
| MSDS | |
| Size | $204 |
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LIF drives JAK/STAT3 signaling critical to stem cell pluripotency maintenance, tumor microenvironment modulation, and myeloid cell differentiation—making validated bioactivity essential for meaningful functional data. This tag-free recombinant human LIF, encompassing the full mature sequence (aa 23–202), demonstrates an ED50 of 25–150 pg/mL in TF-1 cell proliferation assays, confirming potent signaling capacity suitable for JAK/STAT pathway activation studies, differentiation assays, and dose-response characterization in cancer biology models. Endotoxin levels below 1.0 EU/μg eliminate LPS-driven confounding in sensitive immune cell experiments, supporting use in primary cell cultures, in vivo tumor biology studies, and as a reference standard in cytokine detection platforms. Purity exceeding 95% by SDS-PAGE, combined with this stringent endotoxin control, provides a suitable basis for antibody development workflows including immunization, ELISA coating, and Western blot positive controls.
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