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Study on the Effect and Mechanism of Andrographolide Combined with Pirfenidone on the Activation of Hepatic Stellate Cells Induced by TGF-β1 |
XU Guang, MA Ti-dong, ZHAO Fan, et al |
Department of Neonatal Surgery, Hunan Children's Hospital, Changsha Hunan 410007 |
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Abstract 【Objective】To investigate the effect of andrographolide (AG) combined with pirfenidone (PFD) on hepatic stellate cell activation induced by transforming growth factor-β1(TGF-β1) and its mechanism . 【Methods】 Hepatic stellate cells (LX-2) were used as the research object. After routine in vitro culture, they were divided into control group, TGF-β1 Group , AG group, PFD group and AG + PFD group. MTT assay was used to determine the cell viability of five groups, RT-PCR was used to detect the mRNA expression levels of fiber markers and inflammatory markers, and Western blot was used to detect the related protein expression level of TGF -β/ Smad signaling pathway cells in each group.【Results】 Compared with TGF- β1 group, fiber markers(α- SMA mRNA, Collagen-ⅠmRNA and CTGF mRNA) inflammatory marker (IL-1βmRNA, IL-6 mRNA and TNF- αmRNA) and TGF-β/ Smad signaling pathway related proteins (p-Smad2, p-smad3) of the AG group, the PFD group and the AG + PFD group were significantly down regulated (mean P<0.05); Compared with the PFD group, the expression levels of α- SMA mRNA and IL-6 mRNA in the AG + PFD group were significantly down regulated (mean P<0.05).【Conclusion】 Compared with monotherapy, AG combined with PFD therapy has significant effect on the activation of hepatic stellate cells induced by TGF-β1, and plays a better role in anti hepatic fibrosis, and its mechanism may be related to the regulation of TGF-β/ Smad signaling pathway.
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Received: 10 January 2022
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