Interleukin-10 (IL-10) ELISA

Formerly sold as BE53101 Interleukin-12 (IL-12) is a pleiotropic cytokine, formerly termed cytotoxic lymphocyte maturation factor (CLMF) or natural killer cell stimulatory factor (NKSF), which is produced primarily by stimulated macrophages. IL-12 exerts a variety of biological effects on human T and natural killer cells. Apart from promotion of Th1 development and its ability to promote cytolytic activity it mediates some of its physiological activities by acting as a potent inducer of interferon (IFN) gamma production and the stimulation of other cytokines from peripheral blood T and NK cells. IFN-g then enhances the ability of the phagocytic cells to produce IL-12 and other proinflammatory cytokines. Thus, IL-12 induced IFN-g acts in a positive feedback loop that represents an important amplifying mechanism in the inflammatory response to infections. Its role in directing development of a Th1 type immune response from naive T cells demonstrates its critical role in regulation of the immune respons. IL-12 is a disulfide-linked heterodimeric cytokine composed of a 35 kDa light chain (p35) and a 40 kDa heavy chain (p40) resulting in the only biologically active 70 kDa (p70) form of IL-12. The p40 subunit can also form a homodimer which has been shown to be able to bind the IL- 12 receptor and thus acts as an IL-12 antagonist. Additionally, the p40 subunit has been found to be expressed in a high excess over p70. The critical role of IL-12 in several pathogeneses has been shown. Synonyms: Cytotoxic lymphocyte maturation factor, CLMF, NK cell stimulatory factor, NKSF1 Synonyms: Cytokine synthesis inhibitory factor, CSIF