期刊
JOURNAL OF PROTEOME RESEARCH
卷 7, 期 5, 页码 2050-2058出版社
AMER CHEMICAL SOC
DOI: 10.1021/pr800019k
关键词
apoptosis; death receptors; indioside D; mitochondria; oxidative stress
Medicinal plants represent a rich source of cancer drug leads. Indioside D, a furostanol glycoside isolated from Solanum mammosum, was found to possess anti proliferative activity toward a panel of human cancer cell lines. Proteomic analysis of indioside D-treated HeLa cells revealed profound protein changes related to energy production and oxidative stress, suggesting that mitochondria dysfunction plays a role in indioside D-induced apoptosis. Indioside D caused a rapid dissipation of mitochondrial transmembrane potential (Delta Psi(m)) and the generation of reactive oxygen species (ROS), leading to the activation of caspase-dependent apoptotic cell death. The Fas death receptor pathway was also activated following indioside D treatment, and triggered the activation of caspase-8 and cleavage of Bid, which also acted through the mitochondrial apoptosis pathway. These results suggest that indioside D induced apoptosis in HeLa cells via both intrinsic and extrinsic cell death pathways.
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