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Báo cáo khoa học: a-Fetoprotein positively regulates cytochrome c-mediated caspase activation and apoptosome complex formation

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:12

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Báo cáo khoa học: a-Fetoprotein positively regulates cytochrome c-mediated caspase activation and apoptosome complex formation

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Previous results have shown that theoncoembryonicmarker a-fetoprotein (AFP) is able to induce apoptosis in tumor cells through activation of caspase 3, bypassing Fas-dependent and tumor necrosis factor receptor-dependent signaling. In this study we further investigate the molecular interactions involvedin the AFP-mediatedsignaling of apoptosis. We show that AFP treatment of tumor cells is accompaniedby cytosolic translocation of mitochondrial cytochromec. In a cell-free system, AFP mediates process-ing andactivation of caspases 3 and9 by synergistic enhancement of the low-dose cytochromec-mediated sig-nals....

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Nội dung Text: Báo cáo khoa học: a-Fetoprotein positively regulates cytochrome c-mediated caspase activation and apoptosome complex formation

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