Cytotoxic Activity of the Red Grape Polyphenol Resveratrol against Human Prostate Cancer Cells: A Molecular Mechanism Mediated by Mobilization of Nuclear Copper and Generation of Reactive Oxygen Species

被引:0
|
作者
Farhan, Mohd [1 ,2 ]
机构
[1] King Faisal Univ, Coll Sci, Dept Chem, Al Hasa 31982, Saudi Arabia
[2] King Faisal Univ, Dept Basic Sci, Preparatory Year, Al Hasa 31982, Saudi Arabia
来源
LIFE-BASEL | 2024年 / 14卷 / 05期
关键词
resveratrol; prostate cancer cells; reactive oxygen species; pro-oxidant; apoptosis; HUMAN PERIPHERAL LYMPHOCYTES; OXIDATIVE DNA BREAKAGE; FRENCH PARADOX; CELLULAR-DNA; IONS; LEADS; MODULATION; FLAVONOIDS; APOPTOSIS;
D O I
10.3390/life14050611
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Resveratrol, a polyphenolic compound found primarily in red grapes and pomegranates is known as an antioxidant but can act as a pro-oxidant when copper ions are present. Here, resveratrol is demonstrated to reduce cell growth (as evaluated by MTT assay) and promote apoptosis-like cell death (as measured by Histone/DNA ELISA) in prostate cancer cell lines PC3 and C42B. This effect is effectively inhibited by a copper chelator (neocuproine) and reactive oxygen species (ROS) scavengers (thiourea for hydroxyl radical, superoxide dismutase for superoxide anion, and catalase for hydrogen peroxide). These inhibitory effects provide evidence that intracellular copper reacts with resveratrol within cancer cells, resulting in DNA damage via the generation of reactive oxygen species. Additionally, it has been demonstrated that non-tumorigenic epithelial cell lines (MCF-10A) grown in media supplemented with copper are more susceptible to growth inhibition by resveratrol, as confirmed by the observed reduction in cell proliferation. Copper supplementation induces enhanced expression of the copper transporter CTR1 in MCF-10A cells, which is reduced by the addition of resveratrol to the media. The selective cell death of cancer cells generated by copper-mediated and ROS mechanisms may help to explain the anticancer properties of resveratrol.
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页数:15
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