J4

• 基础研究 • 上一篇    下一篇

吗啡对C6神经胶质细胞瘤P53及Bcl-2蛋白质水平的影响

姚路禹,洪 敏*,刘 畅   

  1. 吉林大学基础医学院生物化学与分子生物学教研室,吉林 长春 130021
  • 收稿日期:2003-09-19 修回日期:1900-01-01 出版日期:2004-05-28 发布日期:2004-05-28
  • 通讯作者: 洪 敏

Effects of morphine on P53 and Bcl-2 proteinlevels in C6 glioma cells in rats

YAO Lu-yu, HONG Min*, LIU Chang   

  1. Department of Biochemistry and Molecular Biology, School of BasicMedical Sciences, Jilin University, Changchun 130021, China
  • Received:2003-09-19 Revised:1900-01-01 Online:2004-05-28 Published:2004-05-28
  • Contact: HONG Min

摘要: 目的: 研究吗啡对培养的大鼠胶质细胞瘤C6的增殖抑制作用及其机制。 方法:采用氮蓝四唑(MTT)比色法及3H-TdR掺入法研究吗啡对细胞增殖的作用,采用免疫组化方法研究吗啡对细胞P53及Bcl-2蛋白质水平的影响。 结果:不同浓度吗啡(0.01、0.1、1.0、10和100 mg•L-1)作用于培养C6细胞24 h后,3H-TdR掺入量以剂量依赖的形式降低,不同浓度组之间及不同浓度组与对照相比较,差异均有显著性(P<0.01),MTT法测得的细胞增殖抑制率达30%以上。免疫组化结果表明,10 mg•L-1吗啡作用于培养的C6细胞24 h后,C6细胞的P53及Bcl-2蛋白质水平与对照组相比均减少(P<0.01)。结论:吗啡对胶质细胞瘤C6的增殖具有抑制作用,吗啡使细胞中P53及Bcl-2蛋白质水平均降低。

关键词: 吗啡, 基因, p53, 基因, bcl-2

Abstract: Objective To study the effects of morphine on proliferation of cultured C6 glioma cells in rats and its mechanism. Methods 3H-TdR incorporation and MTT colorimetry were used to study the effect of morphine on cell proliferation. Immunohistochemistry method was applied to determine the effect of morphine on P53 and Bcl-2 protein level. Results After different doses of morphine (0.01, 0.1, 1.0, 10 and 100 mg•L-1) were acted on cultured C6 cells, the level of 3H-TdR incorporation decreased in a dose-dependent manner, compared with control and compared with each other among every two adjacent-dose groups. There were significant differences(P<0.01), and the inhibitory rate of morphine on C6 cell examined by MTT colorimetry was over 30%. The levels of P53 protein and Bcl-2 protein in C6 glioma cells decreased after exposed to morphine with the dose of 10 mg•L-1 for 24 hours(P<0.01). Conclusion Morphine has inhibitory effect on proliferation of C6 glioma cells in rats and can inhibit P53 and Bcl-2 protein level.

Key words: morphine, genes, p53, genes, bcl-2

中图分类号: 

  • Q7