rhIL-6 Lyophilized. Carrier free. Recombinant, human, interleukin-6 expressed in E. coli. A prototypic pleiotrophic, pro-inflammatory cytokine that stimulates the production of acute phase proteins by hepatocytes. Also known to induce skeletal muscle protein breakdown. Induces growth and differentiation of B cells, T cells, and hepatocytes. Stimulates growth and inhibits constitutive, protein synthesis-independent apoptosis of murine B cell hybridoma 7TD1. IL-6 is produced by macrophages, endothelial cells, and activated T helper cells. Also considered as a potential marker of adipocyte differentiation. Human IL-6 is active on murine cells. Biological activity: 8-20 pg/ml as measured in a cell proliferation assay with a factor-dependent murine plasmacytoma cell line, B9.. Purity: ≥95% by SDS-PAGE. Contaminants: Endotoxin: ≤1.0 EU/µg IL-6 . Ref.: Vicennati, V., et al. 2002. Int. J. Obes. Relat. Metab. Disord. 26, 9. Vallieres, L., and Rivest, S. 1999. Endocrinology 140, 3890. Goodman, M.N. 1994. Proc. Soc. Exp. Biol. Med. 205, 182. Liu, J., et al. 1994. Cell Immunol. 155, 229. Van Snick, J. 1990. Annu. Rev. Immunol. 8, 253. |