Abstract
Vitis vinifera. L is one of the most widely consumed fruits in the world and are rich in antioxidant abundant polyphenols. The present study was carried out to assess the antiproliferative and apoptotic effects of Vitis vinifera peel and seed extracts in an in vitro model usinghuman epidermoid carcinoma A431 cell lines. Vitis vinifera peel and seed extracts were incubated with A431 cells to evaluate the antiproliferative, apoptotic effects and the morphological apoptotic changes induced by the extracts. Mitochondrial membrane potential was also measured after incubating the cells with extracts. At the inhibitory concentration (IC50), grape seed extract (111.11µg/mL) and grape peel extract (319.14µg/mL) were incubated for 24h with A431 cells. Vitis vinifera peel and seed extracts were able to impart cytotoxic effects, induced apoptosis and apoptotic morphological changes in A431 cells significantly (p<0.01) and this effect is associated with the interference with mitochondrial membrane potential. This reduction in mitochondrial membrane potential probably initiated the apoptotic cascade in the extracts treated cells. Vitis vinifera peel and seed phytochemicals can selectively target cancer cells and the phytochemicals that are occluded can serve as potential anticancer agents providing better efficacy in killing cancer cells.
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