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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Role of the mitochondrial pathway in apoptosis induction by taxanes in breast cancer cells
 Schmiedlová, Martina ; Kovář, Jan (advisor) ; Anděra, Ladislav (referee)
Apoptosis represents one of the cell death mechanisms which is realized after the application of taxanes in breast cancer cell lines. Apoptosis induction can be principally triggered either by outer or inner pathway. The aim of the diploma thesis is to contribute to the elucidation of role and mechanisms of the inner mitochondrial pathway of apoptosis induction after taxane application (paclitaxel and SB-T-1216) employing a model of breast carcinoma cell lines SK- BR-3 (nonfunctional p53, functional capase-3) and MCF-7 (functional p53, nonfunctional caspase-3). Specifically, we tested the effect of both employed taxanes on mitochondrial membrane potential, ROS level and the expression and localization of proteins regulating inner mitochondrial pathway. Taxane application resulted in mitochondrial membrane dissipation in SK-BR-3 cell line. However, this was not shown in MCF-7 cell line. We found no changes in Bax and Smac/DIABLO expression after taxane application in both tested cell lines. There was a decrease of Bid expression after taxane application in SK-BR-3 line, but not in MCF-7 line. Taxane application did not lead to the translocation of Bax and Bid (tBid) proteins from cytosol to mitochondria in both tested cell lines. Similarly, there was no Smac/DIABLO release from mitochondria to...
Detailed record
Role of the mitochondrial pathway in apoptosis induction by taxanes in breast cancer cells
 Schmiedlová, Martina ; Kovář, Jan (advisor) ; Anděra, Ladislav (referee)
Apoptosis represents one of the cell death mechanisms which is realized after the application of taxanes in breast cancer cell lines. Apoptosis induction can be principally triggered either by outer or inner pathway. The aim of the diploma thesis is to contribute to the elucidation of role and mechanisms of the inner mitochondrial pathway of apoptosis induction after taxane application (paclitaxel and SB-T-1216) employing a model of breast carcinoma cell lines SK- BR-3 (nonfunctional p53, functional capase-3) and MCF-7 (functional p53, nonfunctional caspase-3). Specifically, we tested the effect of both employed taxanes on mitochondrial membrane potential, ROS level and the expression and localization of proteins regulating inner mitochondrial pathway. Taxane application resulted in mitochondrial membrane dissipation in SK-BR-3 cell line. However, this was not shown in MCF-7 cell line. We found no changes in Bax and Smac/DIABLO expression after taxane application in both tested cell lines. There was a decrease of Bid expression after taxane application in SK-BR-3 line, but not in MCF-7 line. Taxane application did not lead to the translocation of Bax and Bid (tBid) proteins from cytosol to mitochondria in both tested cell lines. Similarly, there was no Smac/DIABLO release from mitochondria to...
Detailed record

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