Black tea polyphenols reverse epithelial-to-mesenchymal transition and suppress cancer invasion and proteases in human oral cancer cells.

doi:10.1021/jf302223g

中山醫學大學機構典藏 CSMUIR > 口腔醫學院 > 牙醫學系暨碩士班 > 期刊論文 > Item 310902500/11289

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題名:	Black tea polyphenols reverse epithelial-to-mesenchymal transition and suppress cancer invasion and proteases in human oral cancer cells.
作者:	Chang, YC Chen, PN Chu, SC Lin, CY Kuo, WH Hsieh, YS
貢獻者:	中山醫學大學
日期:	2012
上傳時間:	2015-07-15T08:07:00Z (UTC)
ISSN:	0021-8561
摘要:	Epithelial-to-mesenchymal transition (EMT) in cancer cells is considered to be a prerequisite for acquiring invasive/migratory phenotype and subsequent metastasis. This study provides molecular evidence associated with the antimetastatic effect of black tea polyphenol extracts (BTE), which contain polyphenols including gallic acid, gallocatechin, catechin, epigallocatechin-3-gallate, epicatechin-3-gallate, and theaflavin 3,3'-digallate, in an an oral squamous cell culture system by showing a nearly complete inhibition on the invasion (p < 0.001) of SCC-4 cells via reduced activities of MMP-2 (p < 0.001) and u-PA (p < 0.001). Immunoblot was performed to find that BTE could induce up-regulation of epithelial markers such as E-cadherin and inhibit mesenchymal markers such as snail-1 and vimentin. BTE inhibited p-FAK and p-paxillin, indicating the anti-EMT effect of BTE in oral squamous cell carcinoma. BTE was evidenced by its inhibition of the tumor growth of SCC-4 cells via cancer cell xenografted nude mice mode. These results suggested that BTE could reduce invasion by reversing EMT in human oral cancer cells.
URI:	https://ir.csmu.edu.tw:8080/ir/handle/310902500/11289
關聯:	J Agric Food Chem. 2012 Aug 29;60(34):8395-403.
顯示於類別:	[牙醫學系暨碩士班] 期刊論文

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