Genistein Induces Growth Inhibition and G2/M Arrest in Nasopharyngeal Carcinoma Cells

被引:20
作者
Han, Hongyu
Zhong, Caiyun [2 ]
Zhang, Xuchao [4 ]
Liu, Ranyi
Pan, Meixia [4 ]
Tan, Li [3 ]
Li, Yan
Wu, Jiangxue
Zhu, Yinghui
Huang, Wenlin [1 ]
机构
[1] Sun Yat Sen Univ, Ctr Canc, Guangzhou 510060, Guangdong, Peoples R China
[2] Univ Calif Davis, Davis, CA 95616 USA
[3] Guangzhou Med Univ, Affiliated Hosp 1, Guangzhou, Guangdong, Peoples R China
[4] Guangdong Acad Med Sci, Guangzhou, Guangdong, Peoples R China
来源
NUTRITION AND CANCER-AN INTERNATIONAL JOURNAL | 2010年 / 62卷 / 05期
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
DNA TOPOISOMERASE-II; TYROSINE KINASE INHIBITOR; CYCLE ARREST; IN-VITRO; CANCER PREVENTION; G(2)/M ARREST; WISTAR RATS; PROLIFERATION; INVOLVEMENT; ACTIVATION;
D O I
10.1080/01635581003605490
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Nasopharyngeal carcinoma (NPC) is an endemic malignant disease of the head and neck region with unique features including striking ethnic and geographic variations as well as multifactorial etiology. Previous studies have demonstrated the anticancer properties of genistein, the major soy isoflavonoid, in several human cancer cells such as breast, prostate, colon, gastric, lung, and hepatoma. However, the action of genistein in NPC cells has not been determined. In this study, we investigated the inhibitory effects of genistein on NPC cells and its possible underlying mechanisms. We found that genistein dose-dependently inhibited the proliferation of human NPC cell line CNE2 cells. DNA flow cytometric analysis revealed that 30 to 120 M genistein induced dramatic G2/M phase arrest in NPC cells. The mRNA expression levels, as shown by gene expression array and quantitative real-time polymerase chain reaction, and the protein expression levels of the cell cycle regulators p21Cip1 and ATR (Ataxia telangiectasia and Rad3 related) were elevated following genistein treatment. Interestingly, we also observed concomitant induction of p15Ink4b in genistein induced inhibitory effects in NPC cells. Moreover, selective estrogen receptor modulators did not affect genistein induced growth inhibition. These findings provide new insights into the potential intervention of NPC with genistein.
引用
收藏
页码:641 / 647
页数:7
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