Search results for: Caspase 2 Substrate VDVAD AFC
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Mechanism of nitric oxide-induced apoptosis in human neuroblastoma SH-SY5Y cells.
We have attempted to elucidate the precise mechanism of nitric oxide (NO)-induced apoptotic neuronal cell death. Enzymatic cleavages of DEVD-AFC, VDVAD-AFC, and LEHD-AFC (specific substrates for caspase-3-like protease (caspase-3 and -7), caspase-2, and caspase-9, respectively) were observed by treatment with NO. Western blot analysis showed that pro-forms of caspase-2, -3, -6, and -7 are decreased during apoptosis. Interestingly, Ac-DEVD-CHO, a caspase-3-like protease inhibitor, blocked not only the decreases in caspase-2 and -7, but also the formation of p17 from p20 in caspase-3 induced by NO, suggesting that caspase-3 exists upstream of caspase-2 and -7. Bongkrekic acid, a potent inhibitor of mitochondrial permeability transition, specifically blocked both the loss of mitochondrial membrane potential and subsequent DNA fragmentation in response to NO. Thus, NO results in neuronal apoptosis through the sequential loss of mitochondrial membrane potential, caspase activation, and degradation of inhibitor of caspase-activated DNase (CAD) (CAD activation).R Moriya, T Uehara, Y Nomura
2762 related Products with: Mechanism of nitric oxide-induced apoptosis in human neuroblastoma SH-SY5Y cells.
1 mg1.00 flask10 ug1.00 flask4 Membranes/Box5ug96tests50 ul 100ul100 4 Arrays/Slide1.00 flaskRelated Pathways
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