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Melanoma suppression by quercein is correlated with RIG-I and type I interferon signaling. | LitMetric

Melanoma suppression by quercein is correlated with RIG-I and type I interferon signaling.

Biomed Pharmacother

Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China; Department of Immunology and Microbiology, Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, 200025, China. Electronic address:

Published: May 2020

AI Article Synopsis

Article Abstract

Melanoma is a life-threatening cancer with limited treatments. Retinoic acid-inducible gene I (RIG-I) is a cytosolic pattern recognition receptor (PRR) crucial to RNA virus sensing, interferon production, and tumor suppression. Quercetin, a natural flavonoid, has particularly therapeutic interests to prevent and treat cancer, for its pharmacological effects against oxidant, inflammation, and angiogenesis. Quercetin was investigated for its anti-melanoma activity and potential mechanisms in this study. We found that quercetin inhibited mouse melanoma growth in vivo, and suppressed proliferation and promoted apoptosis of both B16 and A375 cells in vitro. Quercetin upregulated IFN-α and IFN-β expression through activating RIG-I promoter in B16 cells. The induction of IFN-α and IFN-β, which could be severely impaired by silencing RIG-I induced interferon stimulated genes (ISGs). Moreover, RIG-I likely amplifies antitumor effects by activating signal transduction and activator of transcription 1 (STAT1) in the IFN-JAK-STAT pathway in an autocrine and paracrine manner. Our study provided novel insights regarding biological and anti-proliferative activities of quercetin against melanoma, and we identified RIG-I as a potential target in anti-tumor therapies.

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Source
http://dx.doi.org/10.1016/j.biopha.2020.109984DOI Listing

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