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Papazisis KT, Geromichalos GD, Kouretas D, Dimitriadis KA, Kortsaris AH: CDK-inhibitor olomoucine inhibits cell death after exposure of cell lines to cytosine-arabinoside. Cancer Lett. 1999 Apr 26;138(1-2):221-6.
Signal transduction for apoptosis or programmed cell death, after DNA damage in mammalian cells, is believed to involve activation of cyclin-dependent kinases (CDKs), especially CDK-1 (cdc2) and CDK-2. We used CDK-inhibitor olomoucine, a purine analogue to evaluate the role CDK inhibition on cytosine-arabinoside (Ara-C)-induced cell death. The two drugs showed an antagonistic effect, suggesting that apoptosis after exposure to Ara-C is inhibited by olomoucine. DNA-electrophoresis showed a clear inhibition of the apoptotic pattern when olomoucine was added to Ara-C. We conclude that CDK-inhibitor olomoucine inhibits cell death induced by Ara-C. |
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