Role of microglia autophagy and mitophagy in age-related neurodegenerative diseases
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Published on: February 14, 2021
Mingkai Lin1, Hongwen Yu1, Qiuyan Xie1
1Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Abstract:
Microglia, characterized by responding to damage, regulating the secretion of soluble inflammatory mediators, and engulfing specific segments in the central nervous system (CNS), function as key immune cells in the CNS. Emerging evidence suggests that microglia coordinate the inflammatory responses in CNS system and play a pivotal role in the pathogenesis of age-related neurodegenerative diseases (NDDs). Remarkably, microglia autophagy participates in the regulation of subcellular substances, which includes the degradation of misfolded proteins and other harmful constituents produced by neurons. Therefore, microglia autophagy regulates neuronal homeostasis maintenance and process of neuroinflammation. In this review, we aimed at highlighting the pivotal role of microglia autophagy in the pathogenesis of age-related NDDs. Besides the mechanistic process and the co-interaction between microglia autophagy and different kinds of NDDs, we also emphasized potential therapeutic agents and approaches that could be utilized at the onset and progression of these diseases through modulating microglia autophagy, including promising nanomedicines. Our review provides a valuable reference for subsequent studies focusing on treatments of neurodegenerative disorders. The exploration of microglia autophagy and the development of nanomedicines greatly enhances current understanding of NDDs.
Insights
Microglia autophagy is crucial for maintaining brain health and fighting neuroinflammation in age-related neurodegenerative diseases (NDDs). Modulating this process, potentially with nanomedicines, offers new therapeutic avenues for NDDs.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Microglia are the primary immune cells of the central nervous system (CNS), responding to damage and regulating inflammation.
- Emerging evidence links microglia's inflammatory roles to the pathogenesis of age-related neurodegenerative diseases (NDDs).
- Microglia autophagy, the process of degrading cellular waste, is vital for neuronal health and controlling neuroinflammation.
Purpose of the Study:
- To review the critical role of microglia autophagy in the development of age-related NDDs.
- To explore the mechanisms and interactions between microglia autophagy and various NDDs.
- To highlight potential therapeutic strategies, including nanomedicines, for modulating microglia autophagy in NDDs.
Main Methods:
- Literature review focusing on microglia autophagy and NDDs.
- Analysis of mechanistic pathways involved in microglia autophagy.
- Examination of therapeutic interventions targeting microglia autophagy.
Main Results:
- Microglia autophagy plays a pivotal role in regulating neuronal homeostasis and neuroinflammation.
- Dysfunctional microglia autophagy contributes to the pathogenesis of age-related NDDs.
- Modulating microglia autophagy presents promising therapeutic potential for NDDs.
Conclusions:
- Microglia autophagy is a key factor in age-related neurodegenerative diseases.
- Targeting microglia autophagy, potentially via nanomedicines, offers a promising therapeutic strategy for NDDs.
- Further research into microglia autophagy and nanomedicine development is essential for advancing NDD treatments.
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