摘要Background:ZhiZi-BoPi Decoction(ZZBPD),a traditional prescription for liver and gallbladder protection,has garnered significant clinical interest due to its hepatoprotective properties.Despite its proven efficacy in mitigating intrahepatic cholestasis,the precise mechanisms underlying its therapeutic effects remain inadequately understood.This study aims to comprehensively investigate the pharmacological mechanisms underlying the therapeutic effects of ZZBPD in cholestatic liver injury(CLI).Methods:Firstly,we evaluated the hepatoprotective effects of ZZBPD on mice with CLI induced by α-naphthylisothiocyanate(ANIT),by measuring biochemical markers,inflammatory factors,and bile acid levels.Subsequently,we employed network pharmacology and single-cell RNA sequencing(scRNA-seq)to identify key targets and potential signaling pathways for the prevention and treatment of CLI.Finally,we further validated the mechanism of action of ZZBPD on these key targets through molecular docking,western blotting,and immunofluorescence techniques.Results:ZZBPD notably improved serum liver function,reduced hepatic inflammation,and restored bile acid balance.Through network pharmacology and scRNA-seq analysis,48 core targets were identified,including TNF,IL-6,and NFKB1,all of which are linked to the IL-17 and NF-κB signaling pathways,as shown by KEGG enrichment analysis.Molecular docking further confirmed stable interactions between ZZBPD's key active components and molecules such as IL-6,IL-17,and NF-κB.Additionally,western blotting and immunofluorescence validated the downregulation of IL-17 and NF-κB protein expression in liver tissue.Conclusion:ZZBPD effectively treats CLI by activating pathways related to the bile acid receptor FXR,while also modulating the IL-17/NF-κB signaling pathway.This dual action enhances bile secretion and alleviates liver inflammation.These findings offer important insights into the pharmacological mechanisms of ZZBPD and underscore its potential as a promising therapeutic for CLI.