n/a
Abstract Title:

Benzyl isothiocyanate promotes apoptosis of oral cancer cells via an acute redox stress-mediated DNA damage response.

Abstract Source:

Food Chem Toxicol. 2016 Nov ;97:336-345. Epub 2016 Sep 28. PMID: 27693243

Abstract Author(s):

Yao-Tsung Yeh, Yen-Nien Hsu, Sheng-Yun Huang, Jian-Sheng Lin, Zi-Feng Chen, Nan-Haw Chow, Shu-Hui Su, Huey-Wen Shyu, Ching-Chiang Lin, Wu-Tein Huang, Hua Yeh, Yu-Chia Chih, Yu-Hsuan Huang, Shu-Jem Su

Article Affiliation:

Yao-Tsung Yeh

Abstract:

Benzyl isothiocyanate (BITC) is a cruciferous vegetable-derived compound with anticancer properties in human cancer cells. However, its anticancer potential and underlying mechanisms remain absent in human oral cancer cells. Results indicate that BITC inhibits growth, promotes G/M phase arrest and triggers apoptosis of OC2 cells with a minimal toxicity to normal cells. BITC-induced cell death was completely prevented by pretreatment with thiol-containing redox compounds including N-acetyl-l-cysteine (NAC), glutathione (GSH), dithiothreitol, and 2-mercaptoethanol, but not free radical scavengers mito-TEMPO, catalase, apocynin, l-NAME and mannitol. BITC rapidly produced reactive oxygen species and nitric oxide, triggered oxidative DNA damage. BITC effectively decreased the intracellular GSH and GSH/GSSG ratio and redox balance recovery by thiol-containing redox compounds, but not by free radical scavengers. Accordingly, redox stresses-DNA damage response (DDR) activated ATM, Chk2, p53, and p21 and subsequently resulted in G/M phase arrest by inhibiting Cdc2 and cyclin B1. Notably, BITC-induced apoptosis was associated with reduced Mcl-1 and Bcl-2 expression, diminished mitochondrial membrane potential (ΔΨm), and increased PARP cleavage. These BITC-induced redox stress-mediated DDR and apoptosis could be blocked by NAC and GSH. Therefore, BITC can be a rational drug candidate for oral cancer and acted via a redox-dependent pathway.

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.