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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Impact of downregulation of gene expression of the peptidase subunit ClpP of the mitochondrial protease ClpXP on structure and function of mitochondria in human cells
 Kolařík, Daniel ; Stibůrek, Lukáš (advisor) ; Pecina, Petr (referee)
Mitochondria are some of the most complex organelles of eukaryotic cell. They have their own genome and transcriptional apparatus and maintain several key cellular functions. A substantial part of cellular energetic metabolism happens in the mitochondria, as well as formation of iron-sulfur complexes, synthesis of several key molecules and they are also the essential organelles for the apoptotic pathway. In order to maintain the quality of proteins in their oxidative environment, mitochondria have developed a complex system of proteases that reaches all the mitochondrial compartments that degrade damaged proteins and thus promote mitochondrial turnover. The aim of this work was to characterise function of ClpP subunit of ClpXP matrix protease, which role was not yet extensively investigated in human cells. Therefore, we used RNA-interference to silence expression of ClpP in HEK 293 cells and then we performed rescue experiment during which we reintroduced ClpP in cells. Our results show that the ClpP subunit does not actively participate in apoptotic pathway, nevertheless it is essential for correct assembly of all the respiratory complexes as well as the quality of mitochondria itself. We have also shown that the system of mitochondrial proteases is highly functional and that a lack of ClpP...
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Antigen-specific T cell ex vivo detection methods
 Kolařík, Daniel ; Drbal, Karel (advisor) ; Krulová, Magdaléna (referee)
Antigen-specific T cells are an essential component of adaptive immunity. They are involved in protection of organism against extracellular and intracellular pathogens as well as against tumor cells. A defect of their function may lead to autoimmune disorders or allergies. That is why their detection and any further manipulation are essential for clinical immunology. In this thesis, I am going to describe two important methods which are useful for studies of antigen-specific T cells. It involves analysis of static snapshot using flow cytometry and kinetic single-cell detection in microwells. The information obtained by those compatible methods is potentially useful for medical practice in both prevention as well as diagnostics and therapy of relevant human pathologies.
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See also: similar author names
4 Kolařík, David
3 Kolařík, Dušan
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