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Published on: February 3, 2017
Insulin and Autophagy in Neurodegeneration
Natália Prudente de Mello1, Ana Maria Orellana2, Caio Henrique Mazucanti2
1Laboratory of Molecular and Functional Neurobiology, Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Abstract:
Crosstalk in the pathophysiological processes underpinning metabolic diseases and neurodegenerative disorders have been the subject of extensive investigation, in which insulin signaling and autophagy impairment demonstrate to be a common factor in both conditions. Although it is still somewhat conflicting, pharmacological and genetic strategies that regulate these pathways may be a promising approach for aggregate protein clearancing and consequently the delaying of onset or progression of the disease. However, as the response due to this modulation seems to be time-dependent, finding the right regulation of autophagy may be a potential target for drug development for neurodegenerative diseases. In this way, this review focuses on the role of insulin signaling/resistance and autophagy in some neurodegenerative diseases, discussing pharmacological and non-pharmacological interventions in these diseases.
Insights
Insulin resistance and impaired autophagy are linked in metabolic and neurodegenerative diseases. Modulating these pathways, especially autophagy, may offer new therapeutic targets for neurodegenerative conditions.
Area of Science:
- Neurobiology
- Metabolic Disorders
- Cellular Biology
Background:
- Metabolic diseases and neurodegenerative disorders share common pathophysiological pathways.
- Impaired insulin signaling and autophagy are key factors in both conditions.
- Understanding this crosstalk is crucial for developing novel therapeutic strategies.
Purpose of the Study:
- To review the role of insulin signaling/resistance and autophagy in neurodegenerative diseases.
- To discuss potential pharmacological and non-pharmacological interventions targeting these pathways.
- To highlight the time-dependent nature of therapeutic responses in autophagy modulation.
Main Methods:
- Literature review focusing on insulin signaling, autophagy, and neurodegeneration.
- Analysis of studies investigating the interplay between metabolic and neurological health.
- Synthesis of current research on therapeutic interventions.
Main Results:
- Insulin resistance and autophagy dysfunction are consistently observed in neurodegenerative conditions.
- Pharmacological and genetic strategies targeting insulin and autophagy pathways show promise for protein aggregate clearance.
- The efficacy of these interventions is often dependent on timing and specific pathway modulation.
Conclusions:
- Targeting insulin signaling and autophagy presents a potential therapeutic avenue for neurodegenerative diseases.
- Further research into the time-dependent regulation of autophagy is warranted for drug development.
- A comprehensive approach considering both metabolic and neurological factors is essential.
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