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Published on: December 26, 2016
Microglia in Alzheimer's disease: pathogenesis, mechanisms, and therapeutic potentials
Jifei Miao1,2, Haixia Ma3, Yang Yang3
1Shenzhen Bao'an Traditional Chinese Medicine Hospital, Shenzhen, China.
Abstract:
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by protein aggregation in the brain. Recent studies have revealed the critical role of microglia in AD pathogenesis. This review provides a comprehensive summary of the current understanding of microglial involvement in AD, focusing on genetic determinants, phenotypic state, phagocytic capacity, neuroinflammatory response, and impact on synaptic plasticity and neuronal regulation. Furthermore, recent developments in drug discovery targeting microglia in AD are reviewed, highlighting potential avenues for therapeutic intervention. This review emphasizes the essential role of microglia in AD and provides insights into potential treatments.
Insights
Microglia play a key role in Alzheimer's disease (AD) pathogenesis by influencing neuroinflammation and neuronal regulation. Understanding these cells offers new therapeutic targets for AD drug discovery.
Area of Science:
- Neuroscience
- Immunology
- Pharmacology
Background:
- Alzheimer's disease (AD) is a neurodegenerative disorder marked by brain protein aggregation.
- Microglia, the brain's immune cells, are increasingly recognized for their critical role in AD pathogenesis.
- Dysfunctional microglia contribute to neuroinflammation and neuronal damage in AD.
Purpose of the Study:
- To comprehensively review the multifaceted role of microglia in Alzheimer's disease.
- To explore genetic factors, phenotypic changes, and functional capacities of microglia in AD.
- To summarize recent advancements in microglial-targeted drug discovery for AD therapeutics.
Main Methods:
- Literature review of current research on microglia in AD.
- Analysis of genetic, cellular, and functional aspects of microglial involvement.
- Survey of emerging therapeutic strategies targeting microglial pathways.
Main Results:
- Microglial genetic determinants significantly influence AD risk and progression.
- Microglial phenotypes (e.g., pro-inflammatory vs. phagocytic) impact disease trajectory.
- Microglial dysfunction affects synaptic plasticity and neuronal health in AD models.
- Targeting microglial pathways shows promise for novel AD treatments.
Conclusions:
- Microglia are central players in Alzheimer's disease pathology.
- Modulating microglial function represents a promising therapeutic strategy for AD.
- Further research into microglial biology is essential for effective AD treatment development.
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