Effect of caffeic acid phenethyl ester, an antioxidant from propolis, on inducing apoptosis in human leukemic HL-60 cells

被引:126
作者
Chen, YJ
Shiao, MS
Hsu, ML
Tsai, HT
Wang, SY
机构
[1] Vet Gen Hosp, Dept Med Res & Educ, Taipei 11217, Taiwan
[2] Natl Yang Ming Univ, Inst Tradit Med, Taipei 11221, Taiwan
[3] Mackay Mem Hosp, Dept Radiat Oncol, Taipei 10449, Taiwan
[4] Chinese Culture Univ, Dept Martial Arts, Taipei 11114, Taiwan
[5] Natl Res Inst Chinese Med, Dept Pharmacol, Taipei 11211, Taiwan
关键词
caffeic acid phenethyl ester (CAPE); apoptosis; caspase-3; Bcl-2; Bax;
D O I
10.1021/jf0107252
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Caffeic acid phenethyl ester (CAPE) is an active component isolated from propolis, The aim of this study was to investigate the mechanism of CAPE-induced apoptosis in human leukemic HL-60 cells. It was found that CAPE entered HL-60 cells very quickly and then inhibited their survival in a concentration- and time-dependent manner. CAPE induced characteristic DNA fragmentation and morphological changes typical of apoptosis in these cells. Estimation of the apoptotic percentage showed a time-dependent increase after CAPE (6 mug/mL) treatment (up to 66.7 +/- 2.0% at 72 h). Treatment with CAPE caused rapid activation of caspase-3 after 4 h, down-regulation of Bcl-2 expression after 6 h, and up-regulation of Bax expression after 16 h. These results suggest that CAPE is a potent apoptosis-inducing agent; its action is accompanied by activation of caspase-3, down-regulation of Bcl-2, and up-regulation of Bax in human leukemic HL-60 cells.
引用
收藏
页码:5615 / 5619
页数:5
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