Human IL-12(Interleukin 12) Introduction

IL-12 is an interleukin that is naturally produced by dendritic cells, macrophages, neutrophils. IL-12 belongs to the family of interleukin-12. IL-12 family is unique in comprising the only heterodimeric cytokines, which includes IL-12, IL-23, IL-27 and IL-35]. Despite sharing many structural features and molecular partners, they mediate surprisingly diverse functional effects. IL-12 is composed of a bundle of four alpha helices. It is a heterodimeric cytokine encoded by two separate genes, IL-12A (p35) and IL-12B (p40). The active heterodimer (referred to as 'p70'), and a homodimer of p40 are formed following protein synthesis.

Human IL-12(Interleukin 12) ELISA Kit Test Method

This kit uses sandwich ELISA to detect the concentration of Human IL-12.

Human IL-12-specific monoclonal antibody has been pre-coated in the wells of the supplied microplate. Standards samples and controls are added to interact with the immobilized antibody. A sandwich complex is formed by additional anti-Human IL-12 antibody with HRP-Streptavidin. TMB solution is added to react with the sandwich for ming optical signal measured by microplate reader. The concentration of Human IL-12 in the sample can be calculated by comparing the absorbance of the sample with the standard curve.

Reference:

1. Kaliński P, Hilkens CM, Snijders A, Snijdewint FG, Kapsenberg ML (July 1997). "IL-12-deficient dendritic cells, generated in the presence of prostaglandin E2, promote type 2 cytokine production in maturing human naive T helper cells". Journal of Immunology. 159 (1): 28–35. PMID 9200435.
2. Vignali DA, Kuchroo VK (July 2012). "IL-12 family cytokines: immunological playmakers". Nature Immunology. 13 (8): 722–8. doi:10.1038/ni.2366. PMC 4158817. PMID 22814351.
3. Hsieh CS, Macatonia SE, Tripp CS, Wolf SF, O'Garra A, Murphy KM (April 1993). "Development of TH1 CD4+ T cells through IL-12 produced by Listeria-induced macrophages". Science. 260 (5107): 547–9. doi:10.1126/science.8097338. PMID 8097338.