ArticleThe Kaohsiung journal of medical sciences2026
USP7 Regulates TRPV1 Deubiquitination to Mediate Chondrocyte Ferroptosis and Alleviate Osteoarthritis.
Article in The Kaohsiung journal of medical sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Osteoarthritis (OA) is a common degenerative joint disease characterized by chondrocyte dysfunction. In this study, we explored the function and mechanism of ubiquitin-specific protease 7 (USP7) in chondrocyte ferroptosis in OA. The USP7, TRPV1, collagen II, and GPX4 levels in knee joint tissue were detected using immunohistochemistry. Safranin O-Fast Green staining detected histopathological changes in OA mice. RT-qPCR and western blotting determined the expression of USP, TRPV1, collagen II, iNOS, MMP13, and MMP3. Primary mouse chondrocytes were treated with IL-1β in vitro to simulate OA. Chondrocyte viability was assessed using the MTT assay. Immunofluorescence staining revealed an increase in reactive oxygen species levels. MDA and Fe
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