癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (2): 87-89.doi: 10.3969/j.issn.1004-616x.2005.02.006

• 论著 • 上一篇    下一篇

维生素E琥珀酸酯对人胃癌细胞增殖分化和热休克蛋白70表达的影响

赵 岚;李红卫;吴 坤   

  1. 哈尔滨医科大学公共卫生学院营养与食品卫生教研室, 黑龙江 哈尔滨 150001
  • 收稿日期:2004-03-11 修回日期:2004-06-28 出版日期:2005-03-30 发布日期:2005-03-30
  • 通讯作者: 赵 岚

Effect of Vitamin E Succinate on Cell Proliferation, Differentiation and Expression of Heat Shock Protein 70 in Human Gastric Carcinoma

ZHAO Lan;LI Hong-wei;WU Kun   

  1. Department of Nutrition and Food Hygiene,Harbin Medical University, Harbin Heilongjiang 150001, China
  • Received:2004-03-11 Revised:2004-06-28 Online:2005-03-30 Published:2005-03-30
  • Contact: ZHAO Lan

摘要: 背景与目的: 研究维生素E琥珀酸酯(Vitamin E Succiaate,VES)对人胃癌SGC-7901细胞增殖和分化作用及其可能机制。材料与方法:采用噻唑蓝(3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyltetrazolium broide,MTT)法检测细胞的生长;流式细胞术检测细胞周期的分布;分光光度法检测分化标志酶的活性;Western Blot法检测不同剂量VES对人胃癌SGC-7901细胞热休克蛋白70(HSP70)的影响。 结果: VES可抑制SGC-7901细胞的生长;VES作用48 h可使细胞出现G0/G1期停滞,分化标志酶AKP、LDH活性降低,并使HSP70蛋白表达降低。结论: VES可抑制SGC-7901细胞的生长并诱导分化,其机制可能是通过抑制HSP70的表达而使细胞发生G0/G1期阻滞,从而抑制肿瘤细胞的增殖,诱导SGC-7901细胞发生分化。

关键词: 维生素E琥珀酸酯, 胃癌, 诱导周期, 热休克蛋白70

Abstract: BACKGROUND&AIM: To study the effect of vitamin E succinat(VES) on the human gastric carcinoma SGC-7901 cell and the possible mechanism. MATERIAL AND METHODS: Using cell culture in vitro, the effect of VES at the dose of 5,10 μg/ml were measured by MTT method for cell growth rate, by flow cytometry for cell cycle distribution, by spectrophotometer for enzyme activity, by western blotting for the expression of HSP70(heat shock protein 70). RESULTS: After treated with VES, SGC-7901 cells were led to growth inhibition, cell cycle arrest, AKP, LDH activity suppressant. Western blotting analysis demonstrated that the expression of HSP70 in SGC-7901 cells was markedly decreased. CONCLUSION: HSP70 is involved in VES induced growth inhibition and differentiation of SGC-7901 cells, and associate with cell cycle arrest.

Key words: vitamin E succinate, gastric carcinoma, cell cycle, heat shock protein 70