Prasad S et al. - Results of western blot showed that lupeol regulates the phosphorylation of cdc2 (Tyr15) and cdc25C (Ser198). Further, on increase of lupeol exposure to PC-3 cells an induction of apoptosis was recorded, which was associated with upregulation of bax, caspase-3, -9, and apaf1 genes and down regulation of antiapoptotic bcl-2 gene. The role of caspase-induced apoptosis was confirmed by increase in reactive oxygen species, loss of mitochondrial membrane potential followed by DNA fragmentation. Thus, our study suggests that lupeol possess novel antiproliferative and apoptotic potential against PCa.
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