IL-17C

null Interleukin-17C (IL-17C) belongs to the IL-17 cytokine family. IL-17C is predominantly expressed by epithelial cells and is produced by cells expressing Chromogranin A (enteroendocrine cells) and mucin (goblet cells). IL-17C can also be expressed in keratinocytes, mononuclear cells, and endothelial cells. IL-17C binds to its functional receptor, a heterodimer formed by IL-17RA and IL-17RE. TLR2, TLR3, and TLR5 upregulate the expression of IL-17C at mucosal surfaces. The expression of IL-17C is also regulated by cytokines (TNF-α, IL-1β and IL-17A). IL-17C is an early response cytokine in the defense against bacterial pathogens and upregulates the expression of a variety of antimicrobial peptides including human beta-defensin 2 (hBD2), Lipocalin 2 (LCN2), and granzyme B. IL-17C also stimulates the release of cytokines (IL-1β, TNF-α, and IL-6). IL-17C is implicated in autoimmune disorders and bacterial infections[1]. Human and mouse IL-17C shares 76.68% sequence identity.