Interleukin (IL)-17 is a proinflammatory cytokine mainly produced by immune cells, especially activated T-helper 17 cells, which contribute to chronic inflammatory and autoimmune diseases including psoriasis. Although the molecular mechanisms of transcription in IL-17-mediated signaling pathways are well established, post-transcriptional control remains to be elucidated. Notably, IL-17 regulates post-transcriptional modifications, which induce elevated levels of target inflammatory mRNAs. Regnase-1, an endoribonuclease and deubiquitinase, post-transcriptionally downregulates various IL-17-driven signaling pathways, including mRNA stability. The ACT1-TBK1/IKKϵ pathway and ARID5A were induced and activated by IL-17-stimulation, leading to the inhibition of inflammatory mRNA degradation by Regnase-1. In this review, we focus on IL-17-mediated mRNA stabilization of psoriasis-related IκB-ζ and provide novel therapeutic strategies for the treatment of Th17-mediated inflammation and autoimmunity.
Citation: Ryuta Muromoto, Kenji Oritani, Tadashi Matsuda. IL-17 signaling is regulated through intrinsic stability control of mRNA during inflammation[J]. AIMS Allergy and Immunology, 2022, 6(3): 188-199. doi: 10.3934/Allergy.2022014
Interleukin (IL)-17 is a proinflammatory cytokine mainly produced by immune cells, especially activated T-helper 17 cells, which contribute to chronic inflammatory and autoimmune diseases including psoriasis. Although the molecular mechanisms of transcription in IL-17-mediated signaling pathways are well established, post-transcriptional control remains to be elucidated. Notably, IL-17 regulates post-transcriptional modifications, which induce elevated levels of target inflammatory mRNAs. Regnase-1, an endoribonuclease and deubiquitinase, post-transcriptionally downregulates various IL-17-driven signaling pathways, including mRNA stability. The ACT1-TBK1/IKKϵ pathway and ARID5A were induced and activated by IL-17-stimulation, leading to the inhibition of inflammatory mRNA degradation by Regnase-1. In this review, we focus on IL-17-mediated mRNA stabilization of psoriasis-related IκB-ζ and provide novel therapeutic strategies for the treatment of Th17-mediated inflammation and autoimmunity.
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