Description: The human IL-22 ELISA is an enzyme-linked immunosorbent assay for the quantitative detection of human IL-22. The human IL-22 ELISA is for research use only. Not for diagnostic or therapeutic procedures.
IL-22 is a new cytokine originally identified as a gene induced by IL-9 in murine T lymphocytes, and showing 22% amino acid identity with IL-10. In the mouse, the IL-22 gene is located on chromosome 10, in the same region as the IFN gamma gene.
IL-22 is produced by activated Th1 and NK cells acting primarily on epithelial cells and is involved in inflammatory responses. Neither resting nor activated immune cells express IL-22 receptor, and IL-22 does not have any effects on these cells in vitro and in vivo. In contrast, cells of the skin and the digestive and respiratory systems represent putative targets of this cytokine. Thus IL-22 does not serve the communication between immune cells but is a T cell mediator that directly promotes the innate, nonspecific immunity of tissues. IL-22 serves as a protective molecule to counteract the destructive nature of the immune response to limit tissue damage.
IL-22 regulates the production of acute phase proteins of the immunological response. On binding to its cognate receptor (IL-22R1), which is associated to the interleukin-10 receptor 2 (IL-10R2), IL-22 promotes activation of signal transducer and activator of transcription (STAT) pathway and several other cellular responses.
Psoriatic patients show strongly elevated IL-22 plasma levels, which correlated with the disease severity.
IL-22 plays a protective role in T cell-mediated hepatitis induced by Concanavalin A (Con A), acting as a survival factor for hepatocytes. IL-22 is present in high quantities in the blood of Crohn's disease patients in contrast to IFN-gamma and IL-17.
Components
Aluminium pouch(es) with a Microwell Plate coated with monoclonal antibody to human IL-22
Biotin-Conjugate anti-human IL-22 monoclonal antibody
Streptavidin-HRP
Human IL-22 Standard lyophilized, 4 ng/ml upon reconstitution
Sample Diluent
Assay Buffer Concentrate 20x (PBS with 1% Tween 20 and 10% BSA)
Wash Buffer Concentrate 20x (PBS with 1% Tween 20)
Substrate Solution (tetramethyl-benzidine)
Stop Solution (1M Phosphoric acid)
Blue-Dye
Green-Dye
Red-Dye
Adhesive Films