Characterization of the mechanisms underlying alterations in macroautophagy and survival signalling in Huntington’s disease

作者: Laura Rué Cabré

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摘要: La malaltia de Huntington es un trastorn neurodegeneratiu progressiu causat per una expansio repeticions del triplet CAG (mes 37) en l’exo 1 gen la huntingtina que genera proteina aberrant. Aquesta modificada toxica i provoca perdua selectiva neurones GABAergiques projeccio el nucli estriat, tot tambe s’han detectat alteracions degeneracio altres arees l’encefal, generant simptomatologia complexa engloba motores, cognitives emocionals. Un marcador patologia formacio d’agregats proteics, principalment compostos fragments N-terminals mutada generen l’accio proteases. dels processos condueix a mort les l’activacio l’apoptosi. L’equilibri entre vies pro-apoptotiques supervivencia no nomes regula desti cel•lula, sino podria participar regulacio l’aparicio primers simptomes individu afectat. En aquesta Tesi descriuen tres possibles mecanismes cel•lulars activats model muri Huntington, podrien compensar toxicitat aixi retardar-ne patologia: (1) sobreactivacio l’autofagia estadis inicials patologia, important degradacio mutada; (2) via senyalitzacio mTOR-AKT, participa cel•lular; (3) inhibicio PKC?, quan troba activada apoptosis cel•lular cel•lules expressen mutada. Potenciar des d’edats primerenques qualsevol d’aquests mecanismes, doncs, ser bona estrategia terapeutica Huntington.

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