title: Effect of Trans-resveratrol on Rotenone-induced Cytotoxicity in Human Breast Adenocarcinoma Cells.
abstract: Rotenone, a botanical insecticide is known to cause apoptosis in various cell types. Trans-resveratrol, a natural phytophenol present in red grapes and wine, is also well documented for its antioxidant, anti-inflammatory, anti-mutagenic, and anticarcinogenic activities. Therefore, the present investigations were carried out to assess the protective effect of trans-resveratrol against rotenone-induced cell death in human breast adenocarcinoma (MCF-7) cells. MCF-7 cells were exposed with various concentrations of rotenone for 24 h, and the loss in percent cell viability was evaluated by MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide] and neutral red uptake (NRU) assays. A significant decrease in percent cell viability in MCF-7 cells was observed at 50 μM and above concentrations of rotenone, as compared to untreated control. Furthermore, various concentrations (5, 10, and 25 μM) of trans-resveratrol were used to see its protective role on cell viability in rotenone-induced cell death in MCF-7 cells. Pre- or post- treatment of trans-resveratrol for 24 h was given to the cells. The data exhibited a significant dose dependent increase in the percent cell viability under pre- and post-treatment conditions. However, post-treatment of trans-resveratrol for 24 h after rotenone exposure to the cells was relatively less effective. Overall, the results suggest that trans-resveratrol significantly protects MCF-7 cells from rotenone-induced cell death. This model can be used as an effective and economical alternative to animal models for screening the antioxidant activity of a variety of natural compounds/drugs.
authors: A.R. Al-Jeraisy Chair for DNA Research, College of Science, King Saud University, Riyadh, Saudi Arabia.
authors: M A
authors: MA
authors: Siddiqui
authors: Q
authors: Q
authors: Saquib
authors: M
authors: M
authors: Ahamed
authors: J
authors: J
authors: Ahmad
authors: A A
authors: AA
authors: Al-Khedhairy
authors: F M
authors: FM
authors: Abou-Tarboush
authors: J
authors: J
authors: Musarrat