南方医科大学学报2024，Vol.44Issue(11)：2201-2208,8.DOI:10.12122/j.issn.1673-4254.2024.11.17
鼠曲草总黄酮通过激活Nrf2/SLC7A11/GPX-4信号通路抑制肝细胞铁死亡缓解对乙酰氨基酚诱导的小鼠急性肝损伤
Total flavonoids of Salvia miltiorrhiza alleviate acetaminophen-induced acute liver injury in mice by suppressing hepatocyte ferroptosis via activating the Nrf2/HO-1 signaling pathway
摘要
Abstract
Objective To investigate the protective effect of total flavonoids of Salvia divinorum extract against acetaminophen(APAP)-induced acute liver injury(ALI)and its molecular mechanism.Methods The main chemical constituents of total flavonoids of Salvia divinorum were obtained through literature search,and their pharmacological mechanisms were predicted using bioinformatics analysis.In a mouse model of APAP-induced ALI,the protective effects of 100,200 and 400 mg/kg total flavonoids of Salvia miltiorrhiza and 150 mg/kg bifidus were evaluated by observing changes in blood biochemistry and liver histopathology and detecting expressions of the key proteins in the Nrf2/HO-1 signaling pathway.Results Network pharmacology analysis suggested that the main active components in total flavonoids of Salvia divinorum for regulating APAP-induced liver injury included quercetin,lignocerol,caruric acid,and kaempferol,for which GO function enrichment analysis yielded 632 GO entries,including 472 involving biological processes,42 involving cellular composition,and 118 involving molecular function.KEGG enrichment analysis showed that the total flavonoids of Salvia divinorum regulated APAP-induced liver injury mainly through ferroptosis-related signaling pathway.In mice with APAP-induced ALI,treatment with the total flavonoids significantly lowered ALT and AST levels,improved liver histopathology and inflammatory cell infiltration,reduced iron deposition in liver tissues,improved lipid peroxidation-related indexes,promoted the expressions of Nrf2,HO-1,SLC7A11,and GPX-4 proteins,and inhibited the expression of keap1 protein.Conclusion The total flavonoids of Salvia divinorum alleviate APAP-induced ALI in mice possibly by suppressing hepatocyte ferroptosis via activating the Nrf2/SLC7A11/GPX-4 signaling pathway.关键词
鼠曲草总黄酮/Nrf2/SLC7A11/GPX-4/铁死亡/网络药理学/急性肝损伤Key words
total flavonoids of Salvia divinorum/Nrf2/HO-1/ferroptosis/network pharmacology/acute liver injury引用本文复制引用
蔡华俊,陈致岐,胡文婷,谭伟,吴昊,王超..鼠曲草总黄酮通过激活Nrf2/SLC7A11/GPX-4信号通路抑制肝细胞铁死亡缓解对乙酰氨基酚诱导的小鼠急性肝损伤[J].南方医科大学学报,2024,44(11):2201-2208,8.基金项目
湖北省自然科学基金(2022CFB515) （2022CFB515）
湖北恩施学院指导性项目(KYJZ202314) （KYJZ202314）
