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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (2): 176-179.

• 研究原著 • 上一篇    下一篇

青蒿琥酯诱导人早幼粒白血病细胞HL60 凋亡的线粒体机制

聂蕾, 殷祎隆, 尹少甫   

  1. 兰州大学免疫学教研室, 兰州730000, 甘肃
  • 收稿日期:2004-10-23 修回日期:2005-01-10 出版日期:2005-02-06 发布日期:2020-11-18
  • 通讯作者: 尹少甫, 男, 副教授, 硕士生导师, 研究方向:肿瘤免疫。Tel:0931-3968866
  • 作者简介:聂蕾, 女, 硕士研究生, 研究方向:肿瘤细胞凋亡。Tel:13239608572 E-mail:budina@sina.com

Mitochondrial mechanisms of apoptosis induced by artesunate in human leukemia HL60 cells

NIE Lei, YIN Yi-long, YIN Shao-fu   

  1. Department of Immunology, Lanzhou University, Gansu 730000, Lanzhou, China
  • Received:2004-10-23 Revised:2005-01-10 Online:2005-02-06 Published:2020-11-18

摘要: 目的:探讨青蒿琥酯(artesunate, Art) 诱导人急性早幼粒白血病细胞HL60 凋亡的线粒体机制。方法:用Art 处理HL60 细胞, 通过MTT 比色法检测细胞增殖抑制的效果;透射电镜、DNA 凝胶电泳技术观察细胞的凋亡;流式细胞术(flow cytometry,FCM) 进行细胞周期分析和线粒体膜电位(mitochondrialmembrane potential, MMP) 水平的检测;比色法检测半胱-天冬氨酸蛋白酶3(cysteine containing aspartate,Caspase 3) 活性。结果:Art 呈浓度和时间依赖性的抑制HL60 细胞的增殖(P<0.05) 。Art 诱导后HL60 细胞出现典型的凋亡形态学变化和生化改变, G2+M 期细胞比例增高, S 期减少, 凋亡率上升(P<0.05), 线粒体膜电位降低(P<0.05),Caspase 3 活性增强(P<0.05) 。结论:Art 可能通过线粒体/半胱-天冬氨酸蛋白酶3 特定途径诱导HL60细胞凋亡。

关键词: 青蒿琥酯, HL60细胞系, 凋亡, 线粒体膜电位, 半胱-天冬氨酸蛋白酶3

Abstract: AIM: To explore mitochondrial mechanisms of apoptosis induced by artesunate in human leukemia HL60 cells.METHODS: Human leukemia HL60 cell lines were treated by artesunate.The inhibitory effect on cell proliferation was assessed by MTT assay.Electron microscopy and DNA gel electrophoresis was applied to demonstrate the presence of apoptosis.The level of MMP, cell-cycle were determined by flow cytometry (FCM). The activity of caspase 3 was observed by colorimetry. RESULTS: Art showed a dose-dependent and time-dependent manner on the growth of HL60 cells (P<0.05).The typical apoptotic morphological and biochemical changes showed in apoptosis of HL60 cells induced by Art.The flow cytometric profiles revealed that Art (200 mg°L-1) led to the shift from 7.3%up to 18.2% of the G2+ M phase and from 55.3% down to 16.0% of the S phase cells in the percentage of HL60 cell with the increased rate of cell apoptosis(P<0.05).Art significantly decreased the level of MMP inHL60 (P<0.05), and enhanced the activity of caspase 3 (P<0.05).CONCLUSION: Art can induce apoptosis in HL60 via a mitochondria/caspase3-specific pathway.

Key words: artesunate, HL60 cell lines, apoptosis, mitochondrial membrane potential, cysteine containing aspartate3

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