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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (11): 1266-1274.

• 研究原著 • 上一篇    下一篇

一氧化氮诱导 PC12 细胞凋亡及芍药苷的保护作用

孙蓉1,2, 武栋栋1, 刘国卿1   

  1. 1中国药科大学药理教研室,南京 210009,江苏;
    2山东省中医药研究院,济南 250014,山东
  • 收稿日期:2005-05-18 修回日期:2005-08-02 出版日期:2005-11-26 发布日期:2020-11-12
  • 通讯作者: 刘国卿, 博士生导师, 教授, 研究方向:E-mail:liugq@mailbox.cpu.edu.cn
  • 作者简介:孙蓉,女,博士研究生,硕士生导师,副研究员,研究方向为神经和脑血管药理。E-mail:sunrong312@263.net

Nitric oxide-induced PC12 cells apoptosis and protective effect of paeoni-florin

SUN Rong1,2, WU Dong-dong1, LIU Guo-qing1   

  1. 1Department of Pharmacology,China Pharmaceutical University,Nanjing 210009,Jiangsu,China; 2Shandong Research Academy of TCM,Jinan 250014,Shandong,China
  • Received:2005-05-18 Revised:2005-08-02 Online:2005-11-26 Published:2020-11-12

摘要: 目的: 探讨一氧化氮诱导PC12细胞凋亡及芍药苷保护作用的可能机制。方法: MTT和乳酸脱氢酶活性测定细胞存活率,DNA凝胶电泳观察DNA的断裂情况,流式细胞仪测定细胞凋亡率、检测线粒体跨膜电位。结果: 500μmol·L-1硝普钠(SNP)可诱导PC12细胞凋亡,细胞线粒体跨膜电位明显下降。预先经过0.1、1和10μmol·L-1等浓度芍药苷处理后,SNP诱导的PC12细胞凋亡明显减少,同时明显减弱一氧化氮对线粒体跨膜电位的影响。结论: 芍药苷可抑制一氧化氮诱导PC12细胞凋亡,其作用机制可能与其稳定细胞线粒体跨膜电位有关。

关键词: 芍药苷, 一氧化氮, 凋亡, 线粒体, PC12细胞

Abstract: AIM: To explore the possible mechanism of nitric oxide-induced PC12 cells apoptosis and the pro-tective effect of paeoniflorin.METHODS: Cell survival was detected by MTT and lactate dehydrogenase detec-tion.DNA fragmentation was observed by gels electro-phoresis.Apoptotic cells and mitochondral transmembrane potentiall were observed by flow cytometry in PC12 cells.RESULTS: 500μmol·L-1of SNPinduced PC12 cells apoptosis.Paeoniflorin decreased nitric oxide induced PC12 cells apoptotic rate and increased mitochondrial transmembrane potential.CONCLUSION: Paeoniflorin can inhibit nitric oxide-induced apoptosis in PC12 cells.The mechanism is related to preventing loss of MMPin PC12 cells.

Key words: paeoniflorin, nitric oxide, apoptosis, mitochondrial, PC12 cell

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