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Abstract Title:

Paeonol alleviates CCl-induced liver fibrosis through suppression of hepatic stellate cells activation via inhibiting the TGF-β/Smad3 signaling.

Abstract Source:

Immunopharmacol Immunotoxicol. 2019 Jun ;41(3):438-445. Epub 2019 May 23. PMID: 31119954

Abstract Author(s):

Shengwang Wu, Laicheng Liu, Sen Yang, Ge Kuang, Xinru Yin, Yuanyuan Wang, Fangzhi Xu, Lingyi Xiong, Meixia Zhang, Jingyuan Wan, Xia Gong

Article Affiliation:

Shengwang Wu

Abstract:

Paeonol is a natural phenolic component isolated from the root bark of peony with multiple pharmacological activities. We investigated the anti-fibrotic effect and underlying mechanism of paeonol.Twenty-four male C57BL/6J mice were divided into 4 groups ( = 6 in each group), injected with CClto induce liver fibrosis and administrated with paeonol according to the regimen. The serum activity of ALT and AST, and H&E staining were to assess liver injury. Sirius and Masson staining, and hydroxyproline content were to evaluate the degree of liver fibrosis. TNF-α, IL-6, TGF-β, MDA, GSH-PX, SOD, and CAT were detected to reflect inflammation and oxidative stress. RT-qPCR and Western blot analysis to assess the activation of HSCs and TGF-β/Smad3 signaling.Paeonol ameliorated liver injury and liver fibrosis, reflected by the decrease of ALT, AST, less lesion in H&E staining, mitigated fibrosis in Sirius and Masson staining, lessened content of hydroxyproline. Paeonol attenuated the level of IL-6 and TNF-α, and elevated the activity of GSH-PX, SOD, and CAT with reducing the level of MDA. The expression of col 1a, α-SMA, vimentin, and desmin were down-regulated and TGF-β/Smad3 signaling pathway was inhibited.These data demonstrated that paeonol could alleviate CCl-induced liver fibrosis through suppression of hepatic stellate cells activation via inhibiting the TGF-β/Smad3 signaling.

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