Interleukin-12 ( IL-12 ) ;is a cytokine that is secreted by activated phagocytes and dendritic cells and that induces interferon-γproduction by natural-killer and T lymphocytes. IL-12 is a 75 kDa heterodimer composed of a 35 kDa subunit ( IL-12A p35 ) and a 40 kDa subunit ( IL-12B p40 ) that is secreted by a wide variety of antigen presenting cells ( APCs ) ;including phagocytes;B cells and Langerhans cells. IL-12B has been found to be important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of IL-12B was observed in the central nervous system of patients with multiple sclerosis ( MS ) ;suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of IL-12B has been reported to be associated with the severity of atopic and non-atopic asthma in children.

IL-23A;IL23P19;P19;SGRF

Human

PBS with 0.04% Proclin 300; 50% glycerol; pH 7.5; PBS with 0.04% Proclin 300; 1% protective protein; 50% glycerol; pH 7.5

-20℃

12个月