Mechanisms of CCl₄-induced liver fibrosis with combined transcriptomic and proteomic analysis

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  • Dong Shu
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Chen Qi-Long
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Song Ya-Nan
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Sun Yang
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Wei Bin
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Li Xiao-Yan
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China
  • Hu Yi-Yang
    Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, China
  • Liu Ping
    Institute of E, Shanghai University of Traditional Chinese Medicine, China
  • Su Shi-Bing
    Research Center for Traditional Chinese Medicine Complexity System, Shanghai University of Traditional Chinese Medicine, China

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タイトル別名
  • Mechanisms of CCl<sub>4</sub>-induced liver fibrosis with combined transcriptomic and proteomic analysis

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<p>The classic toxicity of carbon tetrachloride (CCl4) is to induce liver lesion and liver fibrosis. Liver fibrosis is a consequence of chronic liver lesion, which can progress into liver cirrhosis even hepatocarcinoma. However, the toxicological mechanisms of CCl4-induced liver fibrosis remain not fully understood. We combined transcriptomic and proteomic analysis and biological network technology, predicted toxicological targets and regulatory networks of CCl4 in liver fibrosis. Wistar rats were treated with CCl4 for 9 weeks. Histopathological changes, hydroxyproline (Hyp) contents, serum ALT and AST in the CCl4-treated group were significantly higher than that of CCl4-untreated group. CCl4-treated and -untreated liver tissues were examined by microarray and iTRAQ. The results showed that 3535 genes (fold change ≥ 1.5, P < 0.05) and 1412 proteins (fold change ≥ 1.2, P < 0.05) were differentially expressed. Moreover, the integrative analysis of transcriptomics and proteomics data showed 523 overlapped proteins, enriched in 182 GO terms including oxidation reduction, response to oxidative stress, inflammatory response, extracellular matrix organization, etc. Furthermore, KEGG pathway analysis showed that 36 pathways including retinol metabolism, PPAR signaling pathway, glycolysis/gluconeogenesis, arachidonic acid metabolism, metabolism of xenobiotics by cytochrome P450 and drug metabolism. Network of protein-protein interaction (PPI) and key function with their related targets were performed and the degree of network was calculated with Cytoscape. The expression of key targets such as CYP4A3, ALDH2 and ALDH7A1 decreased after CCl4 treatment. Therefore, the toxicological mechanisms of CCl4-induced liver fibrosis may be related with multi biological process, pathway and targets which may provide potential protection reaction mechanism for CCl4 detoxication in the liver.</p>

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