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Schisandrol A, a bioactive constituent from Schisandrae Chinensis Fructus, alleviates drug-induced liver injury by autophagy activation via exosomes.
Bioorganic Chemistry 2023 July 24
OBJECTIVE: To investigate the bioactive compounds of Schisandrae Chinensis Fructus (SCF) and their mechanisms of action in the treatment of drug-induced liver injury (DILI), specifically Acetaminophen (APAP)-induced DILI.
METHOD: Chemical components in SCF were identified using the UPLC-Q-TOF-MS method. Active components were then screened using HotMap, combined with SCF efficacy results concerning the prevention and treatment of drug-induced liver injury. Its direct target was elucidated using a comprehensive chemical-pharmacodynamic-exosome approach.
RESULT: We identified Schisandrol A, is a lignan component, as a key active compound that improved the symptoms DILI in mouse liver tissue; specifically, reducing oxidative stress and thereby the inflammatory response. To further understand the biological function of miRNAs in mouse liver exosomes, we used TargetScan (v5.0) and Miranda (v3.3a) to predict the target genes of MicroRNAs (miRNAs), where changes in the expression of mmu-let-7 family miRNAs were closely related to autophagy. This revealed differential miRNA target genes that were involved in 20 Kyoto Encyclopedia of Genes and Genomes pathways, including glycerol phosphate metabolism, inositol phosphate metabolism, phospholipase D signaling pathway, Rap1 signaling pathway, and Ras signaling pathway.
CONCLUSION: Schisandrol A alleviated the symptoms of DILI in mice by inhibiting oxidative stress and inflammation, whereas, it alleviated DILI by activating autophagy in the exosomes.
METHOD: Chemical components in SCF were identified using the UPLC-Q-TOF-MS method. Active components were then screened using HotMap, combined with SCF efficacy results concerning the prevention and treatment of drug-induced liver injury. Its direct target was elucidated using a comprehensive chemical-pharmacodynamic-exosome approach.
RESULT: We identified Schisandrol A, is a lignan component, as a key active compound that improved the symptoms DILI in mouse liver tissue; specifically, reducing oxidative stress and thereby the inflammatory response. To further understand the biological function of miRNAs in mouse liver exosomes, we used TargetScan (v5.0) and Miranda (v3.3a) to predict the target genes of MicroRNAs (miRNAs), where changes in the expression of mmu-let-7 family miRNAs were closely related to autophagy. This revealed differential miRNA target genes that were involved in 20 Kyoto Encyclopedia of Genes and Genomes pathways, including glycerol phosphate metabolism, inositol phosphate metabolism, phospholipase D signaling pathway, Rap1 signaling pathway, and Ras signaling pathway.
CONCLUSION: Schisandrol A alleviated the symptoms of DILI in mice by inhibiting oxidative stress and inflammation, whereas, it alleviated DILI by activating autophagy in the exosomes.
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