alexa Interleukin-22: a novel T- and NK-cell derived cytokine that regulates the biology of tissue cells.


Journal of Clinical & Cellular Immunology

Author(s): Wolk K, Sabat R

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Abstract Interleukin (IL)-22, discovered in 2000, is a member of the IL-10 family of cytokines. The major sources of IL-22 are activated T1- and NK-cells. IL-22 acts via a heterodimeric receptor complex consisting of IL-22R1 and IL-10R2. Neither resting nor activated immune cells express IL-22R1 or respond to IL-22. In contrast, tissue cells at outer body barriers, i.e. of the skin, kidney, and the digestive and respiratory systems are targets of this cytokine. IL-22 functions by promoting the anti-microbial defense, protecting against damage, and re-organizing non-immune tissues. Furthermore, IL-22 induces acute phase reactants. These findings indicate that IL-22 represents a novel type of immune mediator that, although produced by immune cells, regulates tissue protection and homeostasis. This article was published in Cytokine Growth Factor Rev and referenced in Journal of Clinical & Cellular Immunology

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