Macroautophagy and Mitophagy in Neurodegenerative Disorders: Focus on Therapeutic Interventions

• Autor(a) principal: Magalhães, João Duarte
• Data de Publicação: 2021
• Outros Autores: Fão, Lígia, Vilaça, Rita, Cardoso, Sandra Morais, Rego, A. Cristina
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/103764; https://doi.org/10.3390/biomedicines9111625
• topic: neurodegenerative disorders; autophagy; mitophagy mitochondrial dysfunction; mutant proteins; therapeutic strategies

Macroautophagy, a quality control mechanism, is an evolutionarily conserved pathway of lysosomal degradation of protein aggregates, pathogens, and damaged organelles. As part of its vital homeostatic role, macroautophagy deregulation is associated with various human disorders, including neurodegenerative diseases. There are several lines of evidence that associate protein misfolding and mitochondrial dysfunction in the etiology of Alzheimer's, Parkinson's, and Huntington's diseases. Macroautophagy has been implicated in the degradation of different protein aggregates such as Aβ, tau, alpha-synuclein (α-syn), and mutant huntingtin (mHtt) and in the clearance of dysfunctional mitochondria. Taking these into consideration, targeting autophagy might represent an effective therapeutic strategy to eliminate protein aggregates and to improve mitochondrial function in these disorders. The present review describes our current understanding on the role of macroautophagy in neurodegenerative disorders and focuses on possible strategies for its therapeutic modulation.