Abstract:
:Paeoniflorin (PF) is the main active component of Paeonia lactiflora Pall., which is used in the treatment of severe cholestatic hepatitis. However, its biological mechanism in regulating bile acid metabolism and cholestatic liver injury has not been fully revealed. Our study aimed to reveal the mechanism of PF in the treatment of cholestatic liver injury in an in vivo metabolic environment using bioinformatics analysis. The serum of rats with bile duct ligation (BDL)-induced cholestatic liver injury treated with PF was analyzed by UHPLC-Q-TOF, and specific metabolites were screened using a metabolomics method. These specific metabolites were further analyzed by network pharmacology to identify the upstream signaling pathways and key protein targets. Finally, the key target proteins were verified by immunohistochemistry using cholestatic rat liver tissue. The serum ALT, AST, TBA, and TBIL levels, as well as the pathological state of the liver tissues, were significantly improved by PF. Twenty-five specific metabolites and 157 corresponding target proteins were screened for the treatment of cholestatic liver injury by PF. The "PF-target-metabolite" interaction network was constructed, and five protein targets (MAP2K1, MAPK1, ILBP, ABCB1, and LTA4H) that may regulate specific metabolites were obtained. The results of immunohistochemistry showed that PF improved the expression of these proteins. The integrated application of multiple bioinformatics methods revealed that PF plays a key role in the treatment of cholestatic liver injury by intervening in important targets related to bile acid metabolism and inflammation.
journal_name
Front Pharmacoljournal_title
Frontiers in pharmacologyauthors
Wei S,Ma X,Niu M,Wang R,Yang T,Wang D,Wen J,Li H,Zhao Ydoi
10.3389/fphar.2020.586806subject
Has Abstractpub_date
2020-10-20 00:00:00pages
586806issn
1663-9812pii
586806journal_volume
11pub_type
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