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中国临床药理学与治疗学 ›› 2007, Vol. 12 ›› Issue (4): 440-443.

• 基础研究 • 上一篇    下一篇

胡黄连苷Ⅱ在谷氨酸诱导的PC12 细胞损伤中的保护作用

郭明川1, 曹艳1, 刘建文2   

  1. 1华东理工大学生物反应器工程国家重点实验室;2药学院, 上海200237
  • 收稿日期:2006-11-28 修回日期:2006-11-28 发布日期:2020-10-30
  • 通讯作者: 刘建文, 男, 教授, 博士生导师, 研究方向:新物质的生物活性和药理药效学。Tel:021-64252044 E-mai l:liujian @ecust.edu.cn

Protective effects of picroside Ⅱon glutamate injury of PC12 cells

GUO Ming-chuan1, CAO Yan1, LIU Jian-wen2   

  1. 1StateKey laboratory of Bioreactor Engineer, 2School of Pharmacy, East China University of Science and Technology,Shanghai 200237, China
  • Received:2006-11-28 Revised:2006-11-28 Published:2020-10-30

摘要: 目的 以谷氨酸为工具药建立氧化应激模型,观察胡黄连苷Ⅱ的保护作用并初步探讨其作用机制。 方法 分别用不同浓度的胡黄连苷Ⅱ 和10 mmol L 的谷氨酸处理PC12 细胞, 通过MTT 法检测细胞的活力, CDCFH 染色法检测细胞氧自由基水平, DNA 琼脂糖凝胶电泳检测细胞凋亡, Western blot检测bcl-2 表达。 结果 胡黄连苷Ⅱ能明显减轻谷氨酸对PC12 细胞的损伤, 提高细胞的存活率, 降低细胞内的氧自由基水平, 上调Bcl-2 蛋白的表达, 抑制细胞凋亡。 结论 胡黄连苷Ⅱ对谷氨酸引起的PC12细胞损伤有保护作用, 其作用机制可能与抑制或清除谷氨酸诱导的细胞内活性氧的生成, 调节凋亡相关基因Bcl-2 蛋白的表达有关。

关键词: 胡黄连苷Ⅱ, 谷氨酸, PC12 细胞, 氧化应激

Abstract: AIM: To investigate the effect of picroside Ⅱ on apoptosis induced by glutamate. METHODS: After being treated with picroside Ⅱ and glutamate, the viability of PC12 cells was detected by MTT assays, and CDCFH was used to detect the reactive oxygen species (ROS).The apoptosis rate was measured by DNA fragmentation agarose gel electrophoresis;The expression of Bcl-2 was detected by Western blot. RESULTS: Picroside Ⅱ could significantly protect PC12 cells from the apoptosis induced by glutamate, increase cell survival rate, decrease the level of intracellular ROS and upregulate Bcl-2 protein expression. CONCLUSION: The underlying mechanisms may be involved in the inhibition or decreasing of ROS formation, and increasing the expression of Bcl-2.

Key words: picroside Ⅱ, glutamate, PC12 cells, oxidative stress

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