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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Effect of oxidative stress on the differentiation of mesenchymal stem cells.
 Bura, Radek ; Tlapáková, Tereza (advisor) ; Pacherník, Jiří (referee)
Mesenchymal stem cells are capable of forming different types of tissue such as muscle, bone, fat or cartilage tissue, thanks to the ability to divide and transform into another cell type. Mesenchymal stem cells obtained from various tissues are used for cell therapy and regenerative medicine. Knowledge of the influence of various factors on the differentiation of these multipotent cells is important. Currently, little is known about the effect of reactive oxygen species (ROS) on the differentiation potential of mesenchymal stem cells. The aim of this bachelor's thesis is to summarize the knowledge of the effect of oxidative stress on the differentiation of mesenchymal stem cells and the affected signaling pathways.
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Regulation of DLX1 gene expression through AP-1 binding site
 Rejlová, Kateřina ; Starková, Júlia (advisor) ; Machová Poláková, Kateřina (referee)
Regulation of expression DLX1 gene, whose elevated levels are detected in patients with acute myeloid leukemia with FLT3-ITD mutations, is not still completely explored topic. The first aim of this study was to determine which selected signaling pathways regulate gene expression of DLX1. ERK a JNK pathways were selected by using qRT-PCR and western blot. These pathways cause activation of the transcription factor AP-1 subunits, the AP-1 putative promoter binding site was identified also in the promoter of the DLX1 gene. The second aim of this study was to test the hypothesis on the regulation of gene expression of DLX1 (via ERK/JNK pathway) through AP-1 binding site on the promoter. Dual luciferase assay using luminescent luciferase activity was performed to test this hypothesis. Gene of the luciferase is contained in the used luciferase vector. The short and the long part of the DLX1 promoter (around AP-1 site) were inserted before the gene of the luciferase in the constructs used in this method. The results of this study indicate that the regulation of gene expression through AP-1 promoter binding site is important but not sufficient part of the regulatory cascade running through ERK and JNK pathway. There must be another transcription factors activated by ERK1/2 kinase which are probably also involved in...
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