甲基阿魏酸对TGF-β_1刺激人肝星状细胞增殖及活化的抑制作用

目的探讨甲基阿魏酸(MFA)对转化生长因子(TGF)-β_1刺激人肝星状细胞(HSC)-LX-2增殖及活化的抑制作用。方法将体外培养的HSC-LX-2细胞作为正常对照组,采用1μg/L TGF-β_1刺激HSC-LX-2进行细胞造模为模型组,药物组含终质量浓度为1μg/L的TGF-β_1和0.312 5、0.625、1.25、2.5、5、10、20、40 mg/L的MFA。根据MTT法检测MFA对药物组HSC-LX-2细胞增殖的影响,选择MFA作用浓度为1.25、2.5、5 mg/L作为低、中、高剂量组,将细胞孵育72h后,采用RT-PCR法检测各组α-平滑肌肌动蛋白(α-SMA)mRNA、Ⅰ...

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Published in山东医药 Vol. 56; no. 25; pp. 1 - 4
Main Author 熊美丽 李勇文 李丽 杨成芳 钟毓娟
Format Magazine Article
LanguageChinese
Published 2016
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ISSN1002-266X

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Summary:目的探讨甲基阿魏酸(MFA)对转化生长因子(TGF)-β_1刺激人肝星状细胞(HSC)-LX-2增殖及活化的抑制作用。方法将体外培养的HSC-LX-2细胞作为正常对照组,采用1μg/L TGF-β_1刺激HSC-LX-2进行细胞造模为模型组,药物组含终质量浓度为1μg/L的TGF-β_1和0.312 5、0.625、1.25、2.5、5、10、20、40 mg/L的MFA。根据MTT法检测MFA对药物组HSC-LX-2细胞增殖的影响,选择MFA作用浓度为1.25、2.5、5 mg/L作为低、中、高剂量组,将细胞孵育72h后,采用RT-PCR法检测各组α-平滑肌肌动蛋白(α-SMA)mRNA、Ⅰ型前胶原(PCⅠ)mRNA表达;采用Western blotting法检测各组α-SMA蛋白表达;采用ELISA法检测各组PCⅠ蛋白表达。结果在0.312 5-5 mg/L质量浓度范围内,随着MFA质量浓度升高,HSC-LX-2细胞生长抑制率逐渐升高,呈浓度依赖性(P均〈0.05);当MFA质量浓度大于10 mg/L时,HSC-LX-2生长抑制率逐渐降低(P均〈0.05)。在1.25-5.0 mg/L范围内随MFA质量浓度逐渐增高,HSC-LX-2细胞中α-SMA及PCⅠ的mRNA及蛋白表达量逐渐降低(P均〈0.05)。结论 MFA可抑制TGF-β_1刺激的人肝星状细胞-LX-2增殖,减弱α-SMA、PCⅠ表达,抑制HSC-LX-2细胞外基质的合成及HSC-LX-2表型的转化。
Bibliography:Objective To investigate inhibitory effect of meth-ferulic acid( MFA) on proliferation and activation of transforming growth factor-β_1( TGF-β_1)-induced human hepatic stellate cells( HSC-LX-2). Methods HSC-LX-2 were cultured in vitro as the contol group and using 1 μg/L TGF-β_1to stimulate HSC-LX-2 as the model group. Meanwhile,the drug intervention group contained 1 μg/L TGF-β_1and 0. 312 5,0. 625,1. 25,2. 5,5,10,20 and 40 mg/L MFA. MTT assay was used to evaluate the effect of MFA on the proliferation of HSC-LX-2 in the model group and the drug intervention group,then the we chose the suitable concentrations of MFA into the low-dose,medium-dose and high-dose groups( 1. 25,2. 5 and 5. 0 mg/L). After 72 h incubation,the mRNA expression of α-SMA and PCⅠin the above five groups was determined by RT-PCR,the protein expression ofα-SMA was determined by Western blotting,and the protein expression of PCⅠin each group was determined by ELISA. Results With the increasing MFA concentration in the range of 0. 312 5-5 m
ISSN:1002-266X