Function and Regulation of IL-36 Signaling in Inflammatory Diseases and Cancer Development

Dawn Queen, Chathumadavi Ediriweera, Liang Liu

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations

Abstract

The IL-36 subfamily of cytokines belongs to the IL-1 superfamily and consists of three pro-inflammatory agonists IL-36α, IL-36β, IL-36γ, 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.

Original languageEnglish (US)
Article number317
JournalFrontiers in Cell and Developmental Biology
Volume7
DOIs
StatePublished - Dec 4 2019

Bibliographical note

Funding Information:
This work was supported in part by the NIH/NIAMS grant K01AR064315, the Prevent Cancer Foundation award, the Paint the Town Pink research award, and The Hormel Foundation.

Keywords

  • IL-36 signaling
  • cancer
  • cytokine
  • inflammation
  • psoriasis

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