癌变·畸变·突变 ›› 2015, Vol. 27 ›› Issue (5): 357-360.doi: 10.3969/j.issn.1004-616x.2015.05.006

• 论著 • 上一篇    下一篇

维生素E琥珀酸酯对人食管癌TE-1和Eca-109细胞增殖及凋亡的影响

陈海军1, 刘玉琴2, 李雨泽2, 王昕2, 李楠2, 李殿忠2   

  1. 1. 黑龙江省医院CT室, 黑龙江 哈尔滨 150036;
    2. 黑龙江省传染病防治院, 黑龙江 哈尔滨 150500
  • 收稿日期:2014-12-16 修回日期:2015-04-17 出版日期:2015-09-30 发布日期:2015-09-30
  • 通讯作者: 李殿忠,E-mail:lidianzhong2010@163.com E-mail:lidianzhong2010@163.com
  • 作者简介:陈海军,E-mail:candy5301@sina.com。

Vitamin E succinate inhibits proliferation and induces apoptosis in human esophageal carcinoma cells TE-1 and Eca-109

CHEN Haijun1, LIU Yuqin2, LI Yuze2, WANG Xin2, LI Nan2, LI Dianzhong2   

  1. 1. Heilongjiang Province Hospital, Harbin 150036;
    2. Heilongjiang Province Tuberculosis Control Center, Harbin 150500, Heilongjiang, China
  • Received:2014-12-16 Revised:2015-04-17 Online:2015-09-30 Published:2015-09-30

摘要:

目的:探讨维生素E琥珀酸酯(VES)对人食管鳞癌低分化细胞株TE-1以及高分化细胞株Eca-109增殖的抑制作用及诱发凋亡的作用。方法:不同浓度(0、5、10、15、20 μg/mL)VES分别处理TE-1及Eca-109细胞24 h后,采用MTT法检测细胞增殖情况;光镜下观察细胞形态;DAPI染色观察细胞核凋亡形态,Western blot方法检测细胞中凋亡标志蛋白多聚ADP核糖聚合酶(PARP)的表达情况。结果:与对照组比较,MTT检测结果显示随着VES剂量增加,两种细胞株均出现了不同程度的增殖抑制,在20 μg/mL VES组细胞增殖率均达到最低(TE-1:15.89%±6.22%;Eca-109:13.78%±4.89%)。光镜下细胞形态随着VES剂量增加发生明显改变,TE-1细胞在10 μg/mL VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态;Eca-109细胞在15 μg/mL VES组开始出现细胞变圆、体积缩小、漂浮死亡等形态。DAPI染色结果显示,VES高剂量组(20 μg/mL)两株细胞的细胞核均出现明显的凋亡形态。Western blot显示,随着VES剂量增加,凋亡标记蛋白PARP裂解激活,在20 μg/mL VES处理组达到最大裂解程度。结论:VES对低分化及高分化人食管癌细胞的增殖均有抑制作用并诱导细胞发生凋亡。

关键词: 维生素E琥珀酸酯, 食管鳞癌, 凋亡, 增殖

Abstract:

OBJECTIVE: To study the effects of vitamin E succinate(VES) on proliferation, apoptosis and expressions of associated protein of human esophageal carcinoma cell line Eca-109 and TE-1.METHODS:Eca-109 and TE-1 human esophageal carcinoma cells were cultured in vitro. Cells were treated with different concentrations of VES for 24 h. MTT was used to measure the proliferation of cells. Morphological changes of cells were examined by inverted microscopy. Apoptosis was assessed by DAPI staining. The expression of poly ADP-ribose polymerase(PARP) of two cell lines among different concentration groups was examined by Western blotting.RESULTS:The inhibitory rate increased gradually with increasing concentration of vitamin E succinate (P<0.05). The number of dead cells decreased with increasing concentration of VES. Apoptosis appeared in different degrees in cells with increasing concentration of VES. The cleavage of PARP protein in two cell lines also increased gradually. CONCLUSION:Vitamin E succinate could inhibit proliferation and induce apoptosis of Eca-109 and TE-1 cell lines.

Key words: vitamin E succinate, human esophageal carcinoma cells, apoptosis, proliferation

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