Home HOME Neoplasma 2004 Neoplasma Vol.51, p.127-135, 2004

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Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

Published in English

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Neoplasma Vol.51, p.127-135, 2004

Title: Combined effect of sodium selenite and campthotecin on cervical carcinoma cells
Author: E., RUDOLF ; J., RADOCHA ; M., CERVINKA ; J., CERMAN ;

Abstract: The effects of selenite, campthotecin and their combination were investigated in cervical carcinoma cell line Hep-2 HeLa during 24h. The measured parameters included morphological changes, proliferation, oxidative stress, mitochondrial status, caspase-3 activation and nuclear fragmentation. Selenite at all but lowest concentrations inhibited cell growth and proliferation and induced cell death characterized by membrane blebbing, oxidative stress and mitochondrial damage, occurring in the absence of caspase-3 activation and nuclear fragmentation. Campthotecin at all concentrations induced gradual apoptosis including all measured morphological and molecular parameters with exception of oxidative stress. A combination of selenite and campthotecin induced both antagonistic and synergistic effects on cervical carcinoma cells. While low selenium concentration slightly reduced cytotoxicity and proapoptotic effects of campthotecin, moderate and higher concentrations of selenium enhanced them, changing simultaneously apoptosis into more necrosis-like death. These results show importance of selenium as a potential modulator and enhancer of campthotecin-based anticancer therapy in nonovarian malignancies.

Keywords: selenite, campthotecin, cervical cancer, apoptosis, mitochondria
Year: 2004, Volume: 51, Issue: Page From: 127, Page To: 135

Price: 21.60 €






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