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- W4311402978 abstract "Effective treatment of liver fibrosis remains a challenging medical problem. Taraxasterol (TAR) has anti-inflammatory, anti-tumor and hepatoprotective effects. Studies have shown that TAR has good biological activity against liver injury induced by various factors. However, the anti-fibrotic effect of TAR and its mechanism are never clarified. The purpose of this study was to investigate the effects of TAR in liver fibrosis and to reveal its possible mechanism by RNA sequencing. Our results suggested that TAR attenuated CCl4-induced hepatocyte necrosis, inflammatory infiltration and ECM deposition. TAR inhibited the levels of ALT, AST, ALP, γ-GT, LN, HA, PC III and IV-C in serum and TNF-α, IL-6, IL-1β and MDA in liver. In addition, TAR increased the activities of SOD and GSH-Px in liver. RNA sequencing analysis of liver tissues revealed that CCl4 and TAR significantly altered 4,155 genes and 2,675 genes, respectively. TAR reversed changes in ECM-related genes. More specifically, TAR mediated the expression of genes related to the activation of the Hippo pathway, while inhibiting the expression of genes related to the activation of HIF-1α, TGF-β/Smad, and Wnt pathways. In the validation experiments, the qRT-PCR results showed that the expression levels of Yap1, Tead3, Hif1α, Vegfa, Tgfβ1, Want3a, and Ctnnb1 mRNA were consistent with the RNA sequencing results. The Western blot results showed that TAR inhibited the levels of TGF-β1 and p-Smad2. In addition, the results in vitro were consistent with those in vivo. Therefore, we concluded that TAR improved CCl4-induced liver fibrosis by regulating Hippo, HIF-1α, TGF-β/Smad and Wnt pathways." @default.
- W4311402978 created "2022-12-26" @default.
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- W4311402978 date "2023-01-01" @default.
- W4311402978 modified "2023-09-27" @default.
- W4311402978 title "The effects of taraxasterol on liver fibrosis revealed by RNA sequencing" @default.
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- W4311402978 doi "https://doi.org/10.1016/j.intimp.2022.109481" @default.
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