Abstract Title:

Induction of apoptotic death by curcumin in human tongue squamous cell carcinoma SCC-4 cells is mediated through endoplasmic reticulum stress and mitochondria-dependent pathways.

Abstract Source:

Cell Biochem Funct. 2011 Sep 1. Epub 2011 Sep 1. PMID: 21887696

Abstract Author(s):

Siu-Wan Ip, Shan-Ying Wu, Chien-Chih Yu, Chao-Lin Kuo, Chun-Shu Yu, Jai-Sing Yang, Zen-Pin Lin, Shang-Ming Chiou, Hsiung-Kwang Chung, Heng-Chien Ho, Jing-Gung Chung

Article Affiliation:

Department of Nutrition, China Medical University, Taichung, Taiwan.

Abstract:

Curcumin from the rhizome of the Curcuma longa plant has been noted for its chemo-preventative and chemo-therapy activities, and it inhibits the growth of many types of human cancer cell lines. In this study, the mechanisms of cell death involved in curcumin-induced growth inhibition, including cell cycle arrest and induction of apoptosis in human tongue cancer SCC-4 cells, were investigated. Herein, we observed that curcumin inhibited cell growth of SCC-4 cells and induced cell death in a dose-dependent manner. Treatment of SCC-4 cells with curcumin caused a moderate and promoted the G(2) /M phase arrest, which was accompanied with decreases in cyclin B/CDK1 and CDC25C protein levels. Moreover, curcumin significantly induced apoptosis of SCC-4 cells with a decrease of the Bcl-2 level, reduction of mitochondrial membrane potential (ΔΨ(m) ), and promoted the active forms of caspase-3. Curcumin also promoted the releases of AIF and Endo G from the mitochondria in SCC-4 cells by using confocal laser microscope. Therefore, we suggest that curcumin induced apoptosis through a mitochondria-dependent pathway in SCC-4 cells. In addition, we also found that curcumin-induced apoptosis of SCC-4 cells was partly through endoplasmic reticulum stress. In conclusion, curcumin increased G(2) /M phase arrest and induced apoptosis through ER stress and mitochondria-dependent pathways in SCC-4 cells. Copyright © 2011 John Wiley&Sons, Ltd.

Study Type : In Vitro Study

Print Options


Key Research Topics

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2024 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.