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中国临床药理学与治疗学 ›› 2004, Vol. 9 ›› Issue (6): 607-611.

• 研究原著 • 上一篇    下一篇

青蒿琥酯诱导肿瘤细胞凋亡与抑制存活蛋白表达有关

李哲1, 袁守军, 聂丽平1, 田增月, 徐兰平, 韩昌明   

  1. 军事医学科学院放射医学研究所, 北京100850
    1辽宁师范大学生命科学学院, 大连116029, 辽宁
  • 收稿日期:2004-02-21 修回日期:2004-03-08 发布日期:2020-11-22
  • 通讯作者: 袁守军, 男, 药理学博士, 副研究员, 硕士生导师, 主要从事肿瘤药理和药物安全评价工作。Tel:010-66930271  E-mai l:yuansj@nic.bmi.ac.cn
  • 作者简介:李哲, 女, 理学硕士, 细胞生物学专业。
  • 基金资助:
    国家自然科学基金资助项目(No30271518)

Apoptosis of tumor cells induced by artesunate is associated with suppressing survivin expression

LI Zhe1, YUAN Shou-Jun, NIE Li-Ping1, TIAN Zeng-Yue, XU Lan-Ping, HAN Chang-Ming   

  1. PInstitute of Radiation, Academy ofMilitary Medical Sciences, Beijing 100850, China;
    1College of Life Science, Liaoning Normal University, Dalian 116029, Liaoning, China
  • Received:2004-02-21 Revised:2004-03-08 Published:2020-11-22

摘要: 目的 探讨青蒿琥酯(artesunate, Art)诱导肿瘤细胞凋亡与存活蛋白(survivin protein)表达的关系。 方法 采用细胞荧光染色、流式细胞术、琼脂糖凝胶电泳法和测定细胞浆Caspase-3 的活性等手段检测肿瘤细胞暴露于不同浓度的Art 时, 对肿瘤细胞凋亡的诱导作用;用RT-PCR、Western Blotting 法,检测不同浓度的Art 作用于肿瘤细胞时, 对survivinmRNA 和survivin 蛋白表达的影响。 结果 HL60 细胞暴露于Art 时, 呈现典型细胞凋亡特征, 如:胞核固缩、形成凋亡小体;凋亡细胞的比例呈浓度依赖性增高;琼脂糖电泳出现明显的“ 梯状” 条带;细胞浆Caspase-3 的活性呈浓度依赖性增高等。RT-PCR 检测表明, A549 细胞暴露于Art 10 和50 g·L-1 72 h后, survivin mRNA 的表达呈浓度依赖性降低, 对照组、10 和50 mg·L-1 处理组的survivin 条带和内标GAPDH 条带灰度的比值分别为1.745、0.390 和0.023;Western Blotting 法也检测到Art 抑制Survivin蛋白的表达。 结论 Art诱导肿瘤细胞发生凋亡, 激活Caspase-3 途径, 可能与抑制survivin 基因表达有关。

关键词: 青蒿素, 青蒿琥酯, 肿瘤, 凋亡, 作用机理, 存活蛋白

Abstract: AIM: To study the relations between apoptosis of tumor cells induced by artesunate (Art)and expression of survivin. METHODS: Tumor cells were exposured to different concentrations of Art, apoptosis was examined by fluorescent staining, flow cytometry, agarose gel electrophoresis (AGE)and Caspase-3 activity assay. The expressions of survivin mRNA and survivin protein were assayed with RT-PCR and Western blotting after cells treated with Art. RESULTS: With Art treatment, HL60 cells showed typical apoptotic features, including chromatin condensation and apoptotic bodies (fluorescent staining), and apoptosis rate of tumor cells increasing in concentration-dependent manners (flow cytometry), DNA ladder (AGE), activity of Caspase-3 enhancing.Analysis of RT-PCR indicated that expression of survivin mRNA was reduced in concentration-dependent manners after A549 cells were exposured to 10 and 50 mg·L-1 Art for 72 h.Intensity ratios between survivin strip and GAPDH strip in control, 10 and 50 mg·L-1 Art groups were 1.745, 0.390 and 0.023, respectively.Western blotting detection was also indicated that Art inhibited expression of survivin protein. CONCLUSION: Tumor cells apoptosis induced by Art might be associated with suppressing survivin expression.

Key words: artemisinin, artesunate, tumor, apoptosis, mechanism, survivin

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