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Khar A, Ali AM, Begum Z, Pardhasaradhi BV, Varalakshmi C: Induction of apoptosis in AK-5 cells by rotenone involves participation of caspases. Indian J Biochem Biophys. 1999 Apr;36(2):77-81. AK-5 tumour cells undergo apoptosis after treatment with rotenone an electron transport inhibitor and oligomycin which inhibits mitochondrial ATPases. Apoptotic process involves the induction of caspases 2 and 3, whereas caspase 1 does not seem to be participating in rotenone/oligomycin induced apoptosis. DEVD which is a specific inhibitor of caspase 3, inhibited apoptosis in AK-5 cells. We have also observed a significant lowering of intracellular pH in AK-5 cells which are induced into the apoptotic process by rotenone. These results suggest an important role for mitochondrial electron transport in the induction of apoptosis in AK-5 tumour cells. |
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