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Activation of several GPCRs, including cannabinoid receptor 2 (CB2R) and adenosine A<jats:sub>1<\/jats:sub> receptor (A<jats:sub>1<\/jats:sub>AR), protects against noise and drug-induced ototoxicity. One such drug, cisplatin, an anticancer agent used to treat various solid tumors, produces permanent hearing loss in experimental animals and in a high percentage of cancer patients who undergo treatments. In this study we show that cisplatin induces the expression of the <jats:italic>RGS17<\/jats:italic> gene and increases\u00a0the levels of RGS17 protein which contributes to a significant proportion of the hearing loss. Knockdown of <jats:italic>RGS17<\/jats:italic> suppressed cisplatin-induced hearing loss in male Wistar rats, while overexpression of <jats:italic>RGS17<\/jats:italic> alone produced hearing loss in vivo. Furthermore, RGS17 and CB2R negatively regulate the expression of each other. These data suggest that RGS17 mediates cisplatin ototoxicity by uncoupling cytoprotective GPCRs from their normal G protein interactions, thereby mitigating the otoprotective contributions of endogenous ligands of these receptors. Thus, RGS17 represents a novel mediator of cisplatin ototoxicity and a potential therapeutic target for treating hearing loss.<\/jats:p>","DOI":"10.1038\/s41598-021-87387-5","type":"journal-article","created":{"date-parts":[[2021,4,14]],"date-time":"2021-04-14T10:05:44Z","timestamp":1618394744000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Regulator of G protein signaling 17 represents a novel target for treating cisplatin induced hearing loss"],"prefix":"10.1038","volume":"11","author":[{"given":"Asmita","family":"Dhukhwa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raheem F. 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