癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (6): 343-345.doi: 10.3969/j.issn.1004-616x.2005.06.006

• 论著 • 上一篇    下一篇

六价铬对大鼠肝细胞体外的毒作用

王晓峰;傅文宇;朱 欣;徐立红   

  1. 浙江大学医学院生物化学与分子生物学教研室
  • 收稿日期:2004-12-14 修回日期:2005-01-24 出版日期:2005-11-30 发布日期:2005-11-30
  • 通讯作者: 徐立红

Cytotoxicity of Hexavalent Chromium to Rat Hepatocytes in Vitro

WANG Xiao-feng; FU Wen-yu; ZHU Xin; XU Li-hong   

  1. Department of Biochemistry and Molecular Biology, School of Medicine
  • Received:2004-12-14 Revised:2005-01-24 Online:2005-11-30 Published:2005-11-30
  • Contact: XU Li-hong

摘要: 背景与目的: 了解六价铬[Cr(VI)]对肝细胞引起的毒性作用。 材料与方法: 用Cr(VI)浓度为0、0.1、1、10 及100 μmol/L的溶液作用于大鼠肝细胞BRL_3A,以四甲基偶氮唑蓝(3_[4,5_dimethylthiazol_2_yl]_2,5 diphenyl tetrazolium bromide,MTT)法检测细胞存活率及流式细胞术分析细胞凋亡率。 结果: 随着Cr(VI)浓度的升高细胞活性有降低趋势并且Cr(VI)所导致的细胞凋亡率也与其浓度存在正相关关系。 结论: Cr(VI)可引起肝细胞的损伤,导致细胞凋亡的发生。

关键词: Cr(VI), 肝细胞, 毒性

Abstract: BACKGROUND & AIM: To study the toxicity of hexavalent chromium on rat hepatocytes . MATERIAL AND METHODS: Rat hepatocytes BRL-3A were treated with hexavalent chromium at concentrations of 0, 0.1, 1, 10 and 100 μmol/L Viability was assessed by 3_[4,5_dimethylthiazol_2_yl]_2,5 diphenyl tetrazolium bromide(MTT) method and flow cytometry was used to analyze cell apoptosis. RESULTS: Viability decreased with the increasing concentration of hexavalent chromium. Cell apoptosis induced by hexavalent chromium also showed in a dose_dependent pattern. CONCLUSION: These data indicated that hexavalent chromium had a damaging effect on hepatocytes and induced apoptosis at the concentrations used in the present study.

Key words: hexavalent chromium, hepatocytes, toxicity