PMID- 31867327 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2296-634X (Print) IS - 2296-634X (Electronic) IS - 2296-634X (Linking) VI - 7 DP - 2019 TI - Function and Regulation of IL-36 Signaling in Inflammatory Diseases and Cancer Development. PG - 317 LID - 10.3389/fcell.2019.00317 [doi] LID - 317 AB - The IL-36 subfamily of cytokines belongs to the IL-1 superfamily and consists of three pro-inflammatory agonists IL-36alpha, IL-36beta, IL-36gamma, and an IL-36 receptor (IL-36R) antagonist, IL-36Ra. These IL-36 cytokines function through a common receptor to modulate innate and adaptive immune responses. IL-36 cytokines are expressed as inactive precursors and require proteolytic processing to become fully active. Upon binding to IL-36R, IL-36 agonists augment the expression and production of inflammatory cytokines via activating signaling pathways. IL-36 is mainly expressed in epidermal, bronchial, and intestinal epithelial cells that form the barrier structures of the body and regulates the balance between pro-inflammatory and anti-inflammatory cytokine production at these tissue sites. Dysregulation of IL-36 signaling is a major etiological factor in the development of autoimmune and inflammatory diseases. Besides its critical role in inflammatory skin diseases such as psoriasis, emerging evidence suggests that aberrant IL-36 activities also promote inflammatory diseases in the lung, kidneys, and intestines, underscoring the potential of IL-36 as a therapeutic target for common inflammatory diseases. The role of IL-36 signaling in cancer development is also under investigation, with limited studies suggesting a potential anti-tumor effect. In this comprehensive review, we summarize current knowledge regarding the expression, activation, regulatory mechanisms, and biological functions of IL-36 signaling in immunity, inflammatory diseases, and cancer development. CI - Copyright (c) 2019 Queen, Ediriweera and Liu. FAU - Queen, Dawn AU - Queen D AD - Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, United States. FAU - Ediriweera, Chathumadavi AU - Ediriweera C AD - The Hormel Institute, University of Minnesota, Austin, MN, United States. FAU - Liu, Liang AU - Liu L AD - The Hormel Institute, University of Minnesota, Austin, MN, United States. LA - eng GR - K01 AR064315/AR/NIAMS NIH HHS/United States GR - P30 AR044535/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Review DEP - 20191204 PL - Switzerland TA - Front Cell Dev Biol JT - Frontiers in cell and developmental biology JID - 101630250 PMC - PMC6904269 OTO - NOTNLM OT - IL-36 signaling OT - cancer OT - cytokine OT - inflammation OT - psoriasis EDAT- 2019/12/24 06:00 MHDA- 2019/12/24 06:01 PMCR- 2019/01/01 CRDT- 2019/12/24 06:00 PHST- 2019/09/05 00:00 [received] PHST- 2019/11/20 00:00 [accepted] PHST- 2019/12/24 06:00 [entrez] PHST- 2019/12/24 06:00 [pubmed] PHST- 2019/12/24 06:01 [medline] PHST- 2019/01/01 00:00 [pmc-release] AID - 10.3389/fcell.2019.00317 [doi] PST - epublish SO - Front Cell Dev Biol. 2019 Dec 4;7:317. doi: 10.3389/fcell.2019.00317. eCollection 2019.