Integrated systems toxicology approaches identified the possible involvement of ABC transporters pathway in erythromycin estolate-induced liver injury in rat

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• 作者：Xiaoyan Lu ; Yu Tian ; Xueping Lian ; Yachao Jin ; Tingting Jin ; Qinqin Zhao ; Bin Hu ; Xiuping Shen ; Xiaohui Fan
• 关键词：AA ; arachidonic acid ; ABC ; ATP-binding cassette ; AhR ; aryl hydrocarbon receptor ; ALT ; alanine aminotransferase ; AST ; aspartate aminotransferase ; ALP ; alkaline phosphatase ; CAR ; constitutive androstane receptor ; Cyp1a1 ; P450 family 1 subfamily a ; polypeptide 1 ; DEGs ; differentially expressed genes ; DILI ; drug-induced liver injury ; EE ; erythromycin estolate ; GO ; Gene Ontology ; GPx ; glutathione peroxidase ; GSH ; glutathione ; GSSG ; oxidized glutathione ; HCA ; hierarchical cluster analysis ; 5-HPETE ; 5-
• 刊名：Food and Chemical Toxicology
• 出版年：March, 2014
• 年：2014
• 卷：65
• 期：Complete
• 页码：343-355
• 全文大小：4012 K

文摘

Erythromycin estolate (EE), a macrolide antibiotic, has caused hepatotoxicity both in human and experimental animals. The objective of this study was to integrate general toxicology, transcriptomics, and metabonomics approaches to determine the mechanisms of EE-induced liver injury. Histopathological examinations unveiled dose-dependent hydropic degeneration of hepatocytes after EE administration. Further biochemical analysis of treated rats confirmed that cholestasis and oxidative stress were induced by EE treatments. Microarray analysis of the livers from EE-treated rats showed that differentially expressed genes were enriched in the ABC transporters, cell cycle, and p53 signaling pathways. Metabonomics analysis revealed that EE exposure could lead to disturbances in energy metabolism, amino acid metabolism, lipid metabolism, and nucleotide metabolism, which may be attributable to EE toxicological effects on the liver through oxidative stress. 5-Oxoproline may be used as a biomarker of EE-induced liver injury. More importantly, the integrated analysis of transcriptomics and metabonomics datasets demonstrated that the induction of ABC transporters pathway severed as an anti-cholestatic adaptive mechanism in EE-induced cholestasis. In addition, EE-induced liver injury was also related to alteration in glycogen and sucrose metabolism, arachidonic acid metabolism, and linoleic acid metabolism pathways.