Autophagy Dysregulation and Obesity-Associated Pathologies
Sim Namkoong1, Chun-Seok Cho1, Ian Semple1
1Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan 48109-2200, USA.
Molecules and Cells
|January 27, 2018
Summary
Autophagy is crucial for maintaining homeostasis during obesity. However, obesity can disrupt autophagy, worsening metabolic pathologies, though its inhibition may offer benefits in specific contexts.
Area of Science:
- Cellular Biology
- Metabolic Disorders
- Physiology
Background:
- Autophagy is a key cellular mechanism for clearing cellular damage and maintaining homeostasis.
- Obesity induces lipotoxic, proteotoxic, and oxidative stresses that impact cellular functions.
- Autophagy plays a vital role in counteracting these obesity-associated stresses.
Purpose of the Study:
- To review the impact of obesity on the autophagic process.
- To discuss the role of autophagy dysregulation in obesity-related metabolic pathologies.
- To explore the paradoxical beneficial effects of autophagy inhibition in obesity.
Main Methods:
- Literature review of current research on autophagy and obesity.
- Analysis of mechanisms by which obesity affects autophagy.
- Discussion of the consequences of autophagy dysregulation in metabolic organs.
Main Results:
- Obesity-induced stresses interfere with autophagy.
- Dysfunctional autophagy exacerbates obesity-related metabolic diseases.
- Autophagy inhibition can paradoxically alleviate some obesity consequences.
Conclusions:
- Obesity significantly impacts autophagy, leading to its dysregulation.
- Autophagy dysregulation contributes to metabolic pathologies associated with obesity.
- Targeting autophagy may offer therapeutic strategies for obesity-related conditions.
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