›› 2011, Vol. 38 ›› Issue (2): 48-51.

• 生理生化 • 上一篇    下一篇

华蟾毒精对胃腺癌细胞MGC-803作用的研究

王小亮1,宋颖2,田秀丽1,何忠梅3,王珊1,张瑾1,邓旭明1,宋宇1   

  1. (1.吉林大学畜牧兽医学院,吉林长春 130062; 2.长春市宽城区医院内科,吉林长春 130051;3.吉林农业大学中药材学院,吉林长春 130117)
  • 收稿日期:1900-01-01 修回日期:2010-11-15 出版日期:2011-02-20 发布日期:2011-02-20
  • 通讯作者: 宋宇

Effect of Cinobufagin on Human Gastric Cancer MGC-803 Cell

WANG Xiao-liang1,SONG Ying2,TIAN Xiu-li1,HE Zhong-mei3,WANG Shan1,ZHANG Jin1,DENG Xu-ming1,SONG Yu1   

  1. (1.College of Animal Science and Veterinary Medicine,Jilin University,Changchun 130062,China;2. Medical Hospital of Kuangcheng City,Changchun 130051,China;3.College of Chinese Herbal Medicine,Jilin Agricultural University,Changchun 130117,China)
  • Received:1900-01-01 Revised:2010-11-15 Online:2011-02-20 Published:2011-02-20
  • Contact: SONG Yu

摘要: 研究华蟾毒精(cinobufagin,CBG)体外对人胃腺癌细胞MGC-803的抑制作用,并初步探讨其抗肿瘤的作用机制。MTT法测定CBG对胃腺癌MGC-803细胞的生长抑制情况;采用光镜观察CBG对人胃腺癌细胞MGC-803形态的影响;流式细胞术检测CBG对MGC-803细胞的抑制作用、细胞周期及细胞早期凋亡的影响。一定浓度范围内CBG对MGC-803细胞的增殖有剂量、时间依赖性抑制作用;光镜下可见细胞形态明显发生变化,细胞变圆,分泌颗粒增多,细胞折光性下降,大部分细胞脱壁;流式细胞仪检测MGC-803细胞,G1期细胞减少,大量细胞停滞在G2/M期,凋亡细胞增多。CBG对MGC-803细胞的抑制作用与诱导其细胞阻滞及凋亡密切相关。

关键词: 华蟾毒精; 抗肿瘤; 凋亡; 周期阻滞

Abstract: To detect the inhibition of cinobufagin (CBG) on human gastric cancer MGC-803 cells and study its anti-tumor mechanism. The inhibition of cell growth of CBG was measured by MTT assay. Morphological changes were observed by optical microscopy. Apoptosis and cell cycle distribution of MGC-803 cells were determined by flow cytometry.Apoptosis of MGC-803 cell was detected by Annexin V/PI method. Cinobufagin inhibited the growth of MGC-803 cells. MGC-803 cells treated with cinobufagin showed typical characteristics of apoptosis. The cells became round,cell detachment,membrane blebbing,and cell shrinkage with a condensed cytoplasm. A net increase in the percentage of cells at G2/M phase was encountered,and this phase was maintained throughout the treatment time. Annexin V/PI flow cytometry analysis showed that CBG can cause MGC-803 cells in early apoptosis. CBG inhibited the growth of gastric cancer MGC-803 cells,induced morphological changes,made cells arrest at G2/M phase and induced apoptosis of MGC-803. The mechanism may be related to the induction of apoptosis and cell cycle arrest.

Key words: cinobufagin; anti-tumor; apoptosis; cell cycle arrest

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