食品科学

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川皮苷体外抗氧化活性及对肿瘤细胞生长抑制作用

张 玉1,2,李洪军1,*,窦华亭3,贺稚非1   

  1. 1.西南大学食品科学学院,重庆 400715;2.重庆市特色食品工程技术研究中心,重庆 400715;
    3.西南大学柑桔研究所,重庆 400712
  • 出版日期:2015-10-15 发布日期:2015-10-20

Antioxidant Activity in vitro of Nobiletin and Its Inhibitory Effect on the Proliferation of Tumor Cells

ZHANG Yu1,2, LI Hongjun1,*, DOU Huating3, HE Zhifei1   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China;
    2. Chongqing Engineering Research Center of Regional Food, Chongqing 400715, China;
    3. Citrus Research Institute, Southwest University, Chongqing 400712, China
  • Online:2015-10-15 Published:2015-10-20

摘要:

目的:研究川皮苷的抗氧化活性及对肿瘤细胞生长抑制作用。方法:在体外测定川皮苷对1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基、羟自由基(•OH)和超氧阴离子自由基(O2-•)的清除能力;通过四甲基偶氮唑蓝(methyl thiazolyl tetrazolium,MTT)法筛选对川皮苷作用敏感的肿瘤细胞株,并用倒置显微镜和透射电镜观察敏感细胞株在川皮苷作用之后细胞结构的变化。结果:川皮苷在体外对DPPH自由基、•OH和O2-•都具有清除能力,其中对•OH的清除能力突出。同时,人胰腺癌细胞株PANC-1对川皮苷作用敏感,即川皮苷可抑制PANC-1细胞的生长;透射电镜观察发现川皮苷可使PANC-1细胞的细胞核膜破裂,胞质溶出,形成凋亡小体。结论:川皮苷具有显著的体外抗氧化活性,并且可以抑制PANC-1细胞的增殖,在功能食品等领域具有良好的应用前景。

关键词: 川皮苷, 抗氧化, 细胞增殖

Abstract:

Objective: To investigate the antioxidant activity of nobiletin and its inhibitory capacity on the proliferation of
cancer cells in vitro. Methods: The scavenging activities of nobiletin on DPPH, hydroxyl and superoxide anion radicals
were detected. MTT assay was utilized to evaluate the effect of nobiletin on the growth of different tumor cells. The
changes in organelles and cell morphology were observed through inverted microscope and transmission electron
microscope. Results: Nobiletin had a strong ability to scavenge DPPH, hydroxyl and superoxide anion radicals, especially
to remove hydroxyl radical. Nobiletin had a significant inhibitory effect on the growth of PANC-1 cells. The viability and
proliferation of PANC-1 cells were decreased in culture medium with nobiletin. As observed under inverted microscope
and transmission electron microscope, nobiletin could result in disruption of the nuclear membrane, release of cytoplasmic
contents and generation of apoptotic bodies. Conclusion: Nobiletin has excellent capability to scavenge free radicals and
inhibit the proliferation of human PANC-1 cells.

Key words: nobiletin, antioxidant activity, cell proliferation

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