›› 2006, Vol. 37 ›› Issue (6): 669-672.doi:

• 论著 • 上一篇    下一篇

用骨髓间充质干细胞建立抗砷细胞模型

慕晓玲;姜玉峰;李思源等   

  1. 1华中科技大学同济医学院组织学胚胎学教研室,武汉 430030;2石河子大学医学院组织学胚胎学教研室,新疆地方与民族高发病重点实验室,石河子 832002
  • 收稿日期:2005-04-06 修回日期:2006-07-14 出版日期:2006-12-06
  • 通讯作者: 李和

Inducing Arsenic Resistance Cells with Human Bone Marrow Derived Mesenchymal Stem Cells

  1. 1Department of Histology and Embryology, Tongji Medical College Huazhong University of Science, Wuhan\ 430030,China; 2Department Histology and Embryology, College of Medicine, Shihezi University, Shihezi\ 832002,China
  • Received:2005-04-06 Revised:2006-07-14 Online:2006-12-06
  • Contact: LI He

关键词: 砷, 间充质干细胞, 抗砷细胞, 噻唑蓝法

Abstract: Objective To obtain stable arsenicresistance cells, the fetal bone marrow mesenchymal stem cells (BMSCs)were exposed to lowlevel arsenite for 18 weeks. Methods Cells from 4 months fetal bone marrow were cultured in αMEM medium to obtain BMSCs. After 24h cytotoxicity test of the fetal BMSCs, we chosed 1?μmol/L NaAsO\-2 to be the dose under which the cell deathrate was 5%10%. The fetal BMSCs were exposed to lowlevel arsenite. MTT was used to detect the survival rate and IC50 of arsenicexposed cells and the control cells, which can reflect the change of arsenic tolerance. A hydride generationatomic fluorescence spectrometry method was used to detect arsenic in the arsenicresistance cells and the control cells. In order to study the mechanism of arsenicresistance, we also examined the intracellular GSH and GST content in the arsenicresistance cells and the control cells. Results The fetal BMSCs were continuously exposed to 1?μmol/L NaAsO\-2. Parallel cells were cultured in medium without arsenic provided passagematched control. After the fetal BMSCs were continuously exposed to low level NaAsO\-2 for 18 weeks, cells exhibited dramatic resistance to acute arsenite toxicity. Compared to control cells, arsenicresistance cells showed reduction in arsenic accumulation in cells. The

Key words: Arsenic, Mesenchymal stem cells, Arsenicresistance cells, MTT

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