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The effect of immunosupression on cell therapy in mouse model of Alzeimer's disease
Gajdoš, Roman ; Jendelová, Pavla (advisor) ; Chmelová, Martina (referee)
Alzheimer's disease is a chronic, progressive, neurodegenerative disease. It belongs to the most common type of dementia and worldwide it is statistically the fifth cause of mortality. The most common morphological markers are insoluble β amyloid plaques, hyperphosforylated tau proteins and formation of neurofibrilar tangles. Among the manifestations of the disease is amyloid angiopathy, synaptic transmission disorders and subsequent apoptosis, deterioration of cognitive functions and brain atrophy. Studies have shown that administration of mesenchymal stem cells (MSC) has an immunomodulatory effects and it can reduce the production and storage of β amyloid and thus improve cognitive functions. In preclinical studies, which are conducted in transgenic mice and often use xenografts, administration of immunosuppresion may lead to variety of positive or negative effects which can affect the results of the experiment. The subject of the master's thesis was to determine the effect of immunosuppression on experimental therapy with MSC in various time windows of AD progression (model 3xTg). At which scale and combination of immunosupression will influence the cell therapy's effects, the length of graft survival, mortality of experimental animals and changes at the cellular level. We have also assessed...
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The effect of immunosupression on cell therapy in mouse model of Alzeimer's disease
Gajdoš, Roman ; Jendelová, Pavla (advisor) ; Chmelová, Martina (referee)
Alzheimer's disease is a chronic, progressive, neurodegenerative disease. It belongs to the most common type of dementia and worldwide it is statistically the fifth cause of mortality. The most common morphological markers are insoluble β amyloid plaques, hyperphosforylated tau proteins and formation of neurofibrilar tangles. Among the manifestations of the disease is amyloid angiopathy, synaptic transmission disorders and subsequent apoptosis, deterioration of cognitive functions and brain atrophy. Studies have shown that administration of mesenchymal stem cells (MSC) has an immunomodulatory effects and it can reduce the production and storage of β amyloid and thus improve cognitive functions. In preclinical studies, which are conducted in transgenic mice and often use xenografts, administration of immunosuppresion may lead to variety of positive or negative effects which can affect the results of the experiment. The subject of the master's thesis was to determine the effect of immunosuppression on experimental therapy with MSC in various time windows of AD progression (model 3xTg). At which scale and combination of immunosupression will influence the cell therapy's effects, the length of graft survival, mortality of experimental animals and changes at the cellular level. We have also assessed...
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Glial cells and their role in Alzheimer disease
Eliášová, Barbora ; Anděrová, Miroslava (advisor) ; Kazantsev, Dmitry (referee)
Alzheimer's disease is a neurodegenerative disorder, affecting mostly elderly people. It causes memory impairment and modifies the ability to talk, learn and make decisions. These are gradually getting worse until the patient loses them completely. Alzheimer's is the most common form of dementia worldwide, however until these days there is no cure. The main reason for this is that mechanisms and causes of this disease are still not utterly understood. Besides the neurodegeneration caused by aggregation of βamyloid protein and hyperphosphorylated tau protein, glial cells of central nervous system play also important role in the Alzheimer's disease. Astrocytes, microglia, oligodendrocytes and recently discovered synantocytes ensure various functions necessary for correct functioning of the brain and damage of these cells can be fatal. During a neurodegenerative disorder such as Alzheimer's, they are able to improve the course of the disease but also do the contrary and aggravate it by malfunctioning or losing one or even more of their functions. Key words: Alzheimer's disease, β amyloid, tau protein, astrocytes, microglia, oligodendrocytes, synantocytes
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