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中国临床药理学与治疗学 ›› 2011, Vol. 16 ›› Issue (2): 126-129.

• 基础研究 • 上一篇    下一篇

ERK1/2信号通路在青蒿琥酯抑制PDGF-BB诱导HSC细胞增殖中的作用

来丽娜1, 任泽恩2, 杨柳絮3, 张晓一1, 王黎敏4, 范毅敏4   

  1. 1长治医学院药理教研室, 3肝病研究所, 4机能实验室,长治 046000,山西; 2长治市第二人民医院,长治 046000,山西
  • 收稿日期:2010-12-24 修回日期:2011-01-12 发布日期:2011-04-20
  • 作者简介:来丽娜,女,硕士,副教授,主要从事中药药理学研究。E-mail: lailina@126.com
  • 基金资助:
    山西省高校科技研究开发项目(20081032);长治医学院科研发展基金项目(200705)

ERK1/2 signal transduction pathway in anti-proliferation effect of PDGF-BB on HSC cells treated with Artesunate

LAI Li-na1, REN Ze-en2, YANG Liu-xu1, ZHANG Xiao-yi1, WANG Li-min4, FAN Yi-min4   

  1. 1Department of Pharmacology, 3Institute of Hepatology, 4Functional Lab of Medicine,Changzhi Medical College,Changzhi 046000,Shanxi,China;
    2Changzhi No.2 Peoples Hospital,Changzhi 046000,Shanxi,China
  • Received:2010-12-24 Revised:2011-01-12 Published:2011-04-20

摘要: 目的:观察青蒿琥酯(Artesunate,Art)对血小板衍生生长因子-BB(platelet derived growth factor-BB,PDGF-BB)刺激大鼠肝星状细胞(hepatic stellate cell,HSC)增殖,磷酸化细胞外信号调节蛋白激酶1/2(phosphorylated extracellular signal regulated kinase 1/2,p-ERK1/2)表达的影响,探讨Art抗肝纤维化的分子机制。方法: 实验分为对照组、PDGF-BB组、PDGF-BB + Art组和PDGF-BB +PD98059组。以PDGF-BB诱导HSC增殖,再分别加入不同浓度的Art和ERK1/2抑制剂PD98059。CCK-8法检测各组HSC细胞的增殖情况,ELISA法测定细胞上清液中Ⅰ型胶原的含量,免疫印迹(Western blotting)法检测各组细胞ERK1/2的表达及活化情况。结果: PDGF-BB可诱导HSC细胞增殖,p-ERK1/2表达增高,而PDGF-BB+Art组、PDGF-BB+PD98059组HSCⅠ型胶原的含量及p-ERK1/2活性均降低。结论:ERK1/2参与了PDGF-BB诱导HSC细胞增殖的作用,Art抗PDGF-BB所诱导的HSC细胞增殖作用与其抑制ERK1/2的活化有关。

关键词: 青蒿琥酯, 肝星状细胞, 血小板衍生生长因子-BB, 细胞外信号调节蛋白激酶1/2, Ⅰ型胶原

Abstract: AIM: To investigate the anti-proliferation effect of Artesunate and phosphorylated extracellular signal-regulated kinase1/2 expression in rat hepatic stellate cell stimulated by platelet derived growth factor-BB,and to elucidate the molecular mechanism of Artesunate against hepatic fibrosis.METHODS: HSC cells were treated with PDGF-BB to induce cell proliferation. Artesunate and PD98059 were added respectively in order to study the relationship between the activity of ERK1/2 and proliferation of HSC cells. The cells were divided into control group, PDGF-BB group, PDGF-BB plus Artesunate group, PDGF-BB plus PD98059 group. The proliferation rates of HSC cells with different treatments were detected by CCK-8.Collagen typeⅠsynthesis was detected by ELISA. Activities of ERK1/2 in HSC cells were determined by Western blotting.RESULTS:PDGF-BB increased the proliferation rate and activity of ERK1/2 in HSC cells. PDGF-BB + Art or PDGF-BB +PD98059 decreased the proliferation rate of HSC cells and activity of ERK1/2 in HSC cells.CONCLUSION: The activity of ERK1/2 is involved in the effect of PDGF-BB on HSC cells. Anti-proliferation effect of Artesunate on HSC cells affected by PDGF-BB is related to the decrease in the activity of ERK1/2.

Key words: Artesunate, Hepatic stellate cell, PDGF-BB, ERK1/2, Collagen typeⅠ

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