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茶叶科学 ›› 2007, Vol. 27 ›› Issue (1): 33-38.doi: 10.13305/j.cnki.jts.2007.01.005

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茶黄素双没食子酸酯的抗癌活性及其作用机理研究

江和源1, 2, HangXiao2, 袁新跃1, 王川丕1, Chung S Yang2   

  1. 1. 中国农业科学院茶叶研究所,浙江 杭州 310008;
    2. Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ08854, USA.
  • 收稿日期:2006-07-27 修回日期:2006-09-27 出版日期:2007-03-25 发布日期:2019-09-11
  • 作者简介:江和源(1974— ),男,江西都昌人,工学博士,现从事茶叶天然产物提取与利用、茶叶化学与加工等研究。
  • 基金资助:
    国家自然科学基金(30570191)和浙江省自然科学基金(Y304477)研究内容

Anticancer Activity of Theaflavin Diagallate and its Mechanism

JIANG He-yuan1, 2, Hang Xiao2, YUAN Xin-yue1, WANG Chuan-pi1, Chung S Yang2   

  1. 1. Tea Research Institute, Chinese Academy of Agriculture Sciences, Zhejiang, Hangzhou 310008, China;
    2. Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, NJ08854, USA
  • Received:2006-07-27 Revised:2006-09-27 Online:2007-03-25 Published:2019-09-11

摘要: 以Sephadex LH-20柱色谱分离得到茶黄素双没食子酸酯(TFDG)成分,以H1299和HCT-116细胞分析了该成分的抗癌活性及其作用机理。结果表明,TFDG具有良好的抑制H1299细胞生长的活性,IC50为25μmol/L;有调节细胞周期的活性,可增加HCT-116细胞G1期细胞的比例;有促进HCT-116细胞凋亡的作用,浓度为50μmol/L时效果显著,48βh凋亡率达到40%以上;Western杂交技术分析结果表明,它可降低HCT-116细胞中促癌蛋白质因子Bcl-xL的表达量,可增加抑癌蛋白质因子Bax的表达量。

关键词: 茶黄素, 抗癌, 细胞周期, 凋亡, 蛋白质印迹

Abstract: Theaflavin digallate was purified by Sephadex LH-20 column chromatography. Its anticancer activity and mechanism were analyzed on H1299 and HCT-116 cancer cell lines. Results from MTT assay showed that Theaflavin digallate could inhibit the growth of H1299, and its IC50 value is 25μmol/L. Theaflavin digallate could slightly adjust the cell cycle of HCT-116 cancer cell, and significantly promote the apoptosis of HCT-116 cancer cell at 50μmol/L. Theaflavin digallagte could decrease the expression of cancer-promoting biomarker, Bcl-xL, and increase the expression of cancer-inhibiting biomarker, Bax, on HCT-116 cancer cell line.

Key words: theaflavin, anticancer, cell cycle, apoptosis, western blotting

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