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<dc:title xml:lang="en">Role of lysine acetyltransferase (KAT) activation in spatial memory : a new therapeutic approach for memory related disorders such as Alzheimer’s disease</dc:title>
<dcterms:alternative xml:lang="fr">Activation des lysines acétyltransférases (KAT) dans la mémoire spatiale : une nouvelle approche thérapeutique pour les maladies de la mémoire, telles que la maladie d'Alzheimer</dcterms:alternative>
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<dc:subject xml:lang="fr">Acétylation des histones</dc:subject>
<dc:subject xml:lang="fr">Mémoire spatiale</dc:subject>
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<dc:subject xml:lang="en">Histone acetylation</dc:subject>
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<dcterms:abstract xml:lang="fr">La CREB Binding Protein (CBP) a une activité lysine acétyltransférase intrinsèque et fonctionne aussi comme un co-activateur transcriptionnel. L'activité acétyltransférase et la fonction de coactivateur transcriptionel sont toutes deux essentielles pour la formation de mémoire à long terme. De plus, la dérégulation de CBP a été observée dans des maladies neurodégénératives comme la maladie d'Alzheimer et la maladie de Huntington. L'objectif de ma thèse était d'étudier le rôle de la CBP et de son activation pharmacologique dans le cadre de la formation de la mémoire spatiale, une forme de mémoire qui est démantelé très tôt dans la MA. Les données obtenues à partir de ma thèse montrent que l'activation de la fonction acétyltransférase CBP par l’activateur CSP-TTK21 améliore les processus mnésiques chez des souris adultes normales et aussi dans un modèle murin de MA (THY-Tau22). Ainsi, la stratégie d’activation pharmacologique de l'activité acétyltransférase de CBP a un énorme potentiel pour une utilisation en tant qu'agent thérapeutique pour le traitement des maladies liées à l'altération de la mémoire tel que la maladie d'Alzheimer.</dcterms:abstract>
<dcterms:abstract xml:lang="en">CREB Binding Protein (CBP) has an intrinsic lysine acetyltransferase activity and alsofunctions as a transcriptional co-activator. Both the acetyltransferase activity and the transcriptional co-activator function are critical for long-term memory formation. Importantly, CBP dysregulation has been observed in neurodegenerative conditions like in Alzheimer’s disease and Huntington’s disease. The focus of my thesis was to study the role of CBP and its activation by a new pharmacological tool, in the context of spatial memory formation, a form of memory that is very early dismantled in AD. Data obtained from my thesis clearly suggests that activation of CBP acetyltransferase function by small molecule activator CSP-TTK21 can improve memory related processes in healthy adult mice and also in a mouse model of AD, (THY-Tau22). Therefore, the strategy of pharmacological activation of CBP acetyltransferase activity has tremendous potential for use as therapeutics for the treatment of diseases related to memory impairment such as Alzheimer’s disease.</dcterms:abstract>
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