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• 研究论文 • 上一篇    

苏拉明在肝纤维化大鼠肝星状细胞增殖和凋亡中的作用

陈新, 修贺明, 姜慧卿*   

  1. 1. 北京市垂杨柳医院 儿科, 北京 100022
    2. 河北医科大学 第二医院消化科 河北省消化病重点实验室 河北省消化病研究所, 河北 石家庄 050051
  • 收稿日期:2011-03-14 修回日期:2011-05-30 出版日期:2011-07-01 发布日期:2011-07-01
  • 通讯作者: 姜慧卿*

Effects of suramin on proliferation and apoptosis of hepatic stellate cells of hepatic fibrosis rats

Xin Chen, He-Ming Xiu, Hui-Qing Jiang*   

  1. 1. Department of Pediatrics, Chuiyangliu Hospital of Beijing, Beijing 100022, China
    2. Department of Gastroenterology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Shijiazhuang 050051, China
  • Received:2011-03-14 Revised:2011-05-30 Online:2011-07-01 Published:2011-07-01
  • Contact: Hui-Qing Jiang*

摘要:

本研究旨在探究苏拉明在肝星状细胞 (HSCs)增殖、凋亡中的作用。将HSCs株分别在不同浓度的苏拉明和无苏拉明的培养基中体外培养。应用MTT法检测细胞增殖率; 流式细胞术测定细胞周期和增殖指数; TUNEL法检测细胞凋亡率; 显微镜下观察细胞形态学变化。结果显示苏拉明干预后, 与对照组比较HSCs增殖率均显著减低; 苏拉明(1.4×10–5 mol/L)干预 72小时, HSCs增殖率降低最明显, 且呈时间和剂量依赖性; 苏拉明(1.4×10–5 mol/L)干预24小时, G1期HSCs百分比显著升高, 增殖指数显著降低, 而HSCs凋亡率无显著变化。苏拉明对HSCs形态无显著影响。我们认为在实验剂量范围内, 苏拉明可抑制HSCs增殖, 而对HSCs凋亡无影响。

关键词: 苏拉明, 肝星状细胞, 增殖, 凋亡, 肝纤维化

Abstract:

The aim of the study was to investigate the role of suramin in the proliferation and apoptosis of activated hepatic stellate cells (HSCs). HSCs were cultured in medium with different doses of suramin. The cell proliferation rate was determined using methyl thiazolyl tetrazolium (MTT) assay. Both the cell cycle and proliferation index (PRI) were analyzed using flow cytometry. The apoptotic rate of HSCs was measured using TdT-mediated dUTP nick end labeling (TUNEL) method. The conformation of HSCs was observed using microscopy. The results indicated that the HSCs proliferation rate of suramin treated cells was significantly reduced compared to the control cells. After HSCs were treated with suramin for 72 h, the cell proliferation rate reached the lowest value compared to the control cells. Our results indicated that suramin inhibited the proliferation of HSCs in a time- and dose-dependent manner. After HSCs were treated with suramin for 24 h, the percentage of HSCs in the G1 phase exhibited a significant increase, the PRI showed a remarkable decrease, while the HSCs apoptosis rate did not show any obvious change. In addition, it seemed that suramin failed to affect the conformation of HSCs. Our data suggested that within the dose range used in the present study, suramin inhibited the proliferation of HSCs, but it could not induce HSCs apoptosis.

Key words: Suramin, Hepatic stellate cells, Proliferation, Apoptosis, Hepatic fibrosis

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*Corresponding author. Tel.: 86-311-66002955; E-mail: huiqingjiang@yahoo.com.cn