Full Text:   <3279>

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CLC number: R737.9

On-line Access: 2017-01-26

Received: 2016-01-26

Revision Accepted: 2016-03-08

Crosschecked: 2017-01-04

Cited: 1

Clicked: 5593

Citations:  Bibtex RefMan EndNote GB/T7714


Shu-min Liu


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Journal of Zhejiang University SCIENCE B 2017 Vol.18 No.2 P.89-98


Green tea polyphenols induce cell death in breast cancer MCF-7 cells through induction of cell cycle arrest and mitochondrial-mediated apoptosis

Author(s):  Shu-min Liu, Shi-yi Ou, Hui-hua Huang

Affiliation(s):  Department of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; more

Corresponding email(s):   fehhuang@scut.edu.cn

Key Words:  Green tea polyphenol (GTP), Breast cancer, MCF-7 cells, Mitochondrial-mediated apoptosis, Cell death, Cell cycle arrest

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Shu-min Liu, Shi-yi Ou, Hui-hua Huang. Green tea polyphenols induce cell death in breast cancer MCF-7 cells through induction of cell cycle arrest and mitochondrial-mediated apoptosis[J]. Journal of Zhejiang University Science B, 2017, 18(2): 89-98.

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author="Shu-min Liu, Shi-yi Ou, Hui-hua Huang",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Green tea polyphenols induce cell death in breast cancer MCF-7 cells through induction of cell cycle arrest and mitochondrial-mediated apoptosis
%A Shu-min Liu
%A Shi-yi Ou
%A Hui-hua Huang
%J Journal of Zhejiang University SCIENCE B
%V 18
%N 2
%P 89-98
%@ 1673-1581
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1600022

T1 - Green tea polyphenols induce cell death in breast cancer MCF-7 cells through induction of cell cycle arrest and mitochondrial-mediated apoptosis
A1 - Shu-min Liu
A1 - Shi-yi Ou
A1 - Hui-hua Huang
J0 - Journal of Zhejiang University Science B
VL - 18
IS - 2
SP - 89
EP - 98
%@ 1673-1581
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1600022

In order to study the molecular mechanisms of green tea polyphenols (GTPs) in treatment or prevention of breast cancer, the cytotoxic effects of GTPs on five human cell lines (MCF-7, A549, Hela, PC3, and HepG2 cells) were determined and the antitumor mechanisms of GTPs in MCF-7 cells were analyzed. The results showed that GTPs exhibited a broad spectrum of inhibition against the detected cancer cell lines, particularly the MCF-7 cells. Studies on the mechanisms revealed that the main modes of cell death induced by GTPs were cell cycle arrest and mitochondrial-mediated apoptosis. Flow cytometric analysis showed that GTPs mediated cell cycle arrest at both G1/M and G2/M transitions. GTP dose dependently led to apoptosis of MCF-7 cells via the mitochondrial pathways, as evidenced by induction of chromatin condensation, reduction of mitochondrial membrane potential (ΔΨm), improvement in the generation of reactive oxygen species (ROS), induction of DNA fragmentation, and activations of caspase-3 and caspase-9 in the present paper.


方法:首先选取不同组织来源的五种人肿瘤细胞(人肝癌细胞HepG2、人肺癌细胞A549、人前列腺癌细胞PC3、人宫颈癌细胞Hela、人乳腺癌细胞MCF-7)作为体外模型,以MTT法检测茶多酚对其增殖抑制作用。然后,选用最敏感细胞MCF-7为研究对象,采用流式细胞术检测茶多酚对细胞周期分布的影响,用Hoechst 3328染色法观察茶多酚对细胞核形态的影响,用JC-1染色法观察茶多酚对细胞线粒体跨膜电位的影响,用双氯荧光素(DCFH-DA)染色法观察茶多酚对细胞活性氧(ROS)水平的影响,用凝胶电泳DNA片段测定法(DNA ladder)观察茶多酚处理后细胞DNA断裂情况,用蛋白质印迹法(Western blot)检测茶多酚对细胞凋亡关键蛋白caspase-3和caspase-9表达的影响,全面探讨了茶多酚体外抗肿瘤机制。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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