Fig. 8: Schematic illustrating the protective effect and mechanism of Sestrin2 in cholestatic liver injury.

Hepatic Sestrin2 expression is induced by ATF4 and C/EBP-β during cholestatic liver injury and thereby inhibits mTORC1 activity. Sestrin2 also suppresses NLRP3 inflammasome activation and subsequently relieves pyroptosis and inflammatory response in cholestatic livers.