Glycyrol attenuates colon injury via promotion of SQSTM1/p62 ubiquitination and autophagy by inhibiting the ubiquitin-specific protease USP8
2023
Shangyun Lu | Jiali Xu | Yang Xu | Yang Liu | Dongxing Shi | Jia Wang | Fubin Qiu
Maintaining the integrity and stability of the gut tract is essential for the health of the body. Autophagy is a promising target for balancing gut homeostasis, and numerous studies have focused on regulating autophagy to improve gut health. In this study, we found that glycyrol (GC), a representative coumarin compound isolated from Glycyrrhiza uralensis Fisch (used for medicine and food), can attenuate colon injury by activating autophagy. Specifically, we demonstrated that GC can act on ubiquitin-specific protease 8 (USP8), inhibit the interaction between SQSTM1/p62 and USP8, promote the ubiquitination of p62, and activate autophagy. Collectively, the findings of the present study suggest that GC is a novel and promising colon protector and deserves further investigation.
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