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Abstract Title:

Resveratrol induces apoptosis of human nasopharyngeal carcinoma cells via activation of multiple apoptotic pathways.

Abstract Source:

J Cell Physiol. 2011 Mar;226(3):720-8. PMID: 20717957

Abstract Author(s):

Tsung-Teng Huang, Hung-Chi Lin, Chang-Chieh Chen, Chia-Chen Lu, Chia-Fong Wei, Ting-Shu Wu, Fu-Guo Liu, Hsin-Chih Lai

Article Affiliation:

Department of Life Science, National Central University, and Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan, Republic of China.

Abstract:

Resveratrol, a naturally occurring dietary compound with chemopreventive properties has been reported to trigger a variety of cancer cell types to apoptosis. Whether resveratrol shows any activity on human nasopharyngeal carcinoma (NPC) cells remained to be determined. The aim of this study was to investigate the effect and mechanism of resveratrol on human NPC cells. Treatment of resveratrol resulted in significant decrease in cell viability of NPC cell lines in a dose- and time-dependent manner. A dose-dependent apoptotic cell death was also measured by flow cytometery analysis. Molecular mechanistic studies of apoptosis unraveled resveratrol treatment resulted in a significant loss of mitochondrial transmembrane potential, release of cytochrome c, enhanced expression of Fas ligand (FasL), and suppression of glucose-regulated protein 78 kDa (GRP78). These were followed by activation of caspases-9, -8, -4, and -3, subsequently leading to DNA fragmentation and cell apoptosis. Furthermore, up-regulation of proapoptotic Bax and down-regulation of antiapoptotic Bcl-2 protein were also observed. Taken together, resveratrol induces apoptosis in human NPC cells through regulation of multiple apoptotic pathways, including death receptor, mitochondria, and endoplasmic reticulum (ER) stress. Resveratrol can be developed as an effective compound for human NPC treatment.

Study Type : In Vitro Study

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