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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
The mechanism of cell death induction in human malignant melanoma in vitro
 Rudolf, Kamil ; Červinka, Miroslav (advisor) ; Mlejnek, Petr (referee) ; Janisch, Roman (referee)
Melanoma is a complex malignant disease characterized by increasing incidence and mortality. Melanoma biology is complicated and comprises many aberrant genes and signaling pathways. Treatment of melanoma relies on surgery, the role of radiation therapy and chemotherapy are limited. In advanced disseminating and metastasizing melanoma chemotherapy largely fails and that is why new approaches are being sought including identification of deregulated molecules or processes which could be used as targets. Some of these targets center on frequently aberrant cell death regulating mechanisms. Some traditional cytostatic drugs such as inhibitors of topoisomerases although useful in other types tumors so far proved useless in treatment of melanoma. Nevertheless, expression of topoisomerases in melanoma is often high, thereby enabling at least theoretically their use as targets for chemotherapeutical intervention. Aim of this study was to assess the cytoxicity and proapoptotic effect of campthotecin (topoisomerase I inhibitor), etoposide (topoisomerase IIα inhibitor) and their combination in selected human melanoma cell lines. We found that campthotecin may induce apoptosis by a combination of mechanisms including p53 as well as p73 and kaspase-2. Etoposide-induced cell death in Bowes melanoma cells included...
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Quantification of gene expression in Hep-2 and HL-60 cells after induction of apoptosis
 Královcová, Dita ; Pejchalová, Marcela (advisor) ; Janisch, Roman (referee) ; Celer, Vladimír (referee)
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