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Published on: December 26, 2016
Decoding microglial functions in Alzheimer's disease: insights from human models
Chandrika Rao1, Stefan Semrau1, Valentina Fossati1
1The New York Stem Cell Foundation Research Institute, New York, NY, USA.
Abstract:
Microglia, key orchestrators of the brain's immune responses, play a pivotal role in the progression of Alzheimer's disease (AD). Emerging human models, including stem cell-derived microglia and cerebral organoids, are transforming our understanding of microglial contributions to AD pathology. In this review, we highlight how these models have uncovered human-specific microglial responses to amyloid plaques and their regulation of neuroinflammation, which are not recapitulated in animal models. We also illustrate how advanced human models that better mimic brain physiology and AD pathology are providing unprecedented insights into the multifaceted roles of microglia. These innovative approaches, combined with sophisticated technologies for cell editing and analysis, are shaping AD research and opening new avenues for therapeutic interventions targeting microglia.
Insights
Human cell models reveal unique microglial responses in Alzheimer's disease (AD), offering new therapeutic targets. These advanced models improve our understanding of neuroinflammation and amyloid plaque interactions in AD progression.
Area of Science:
- Neuroscience
- Immunology
- Stem Cell Biology
Background:
- Microglia are central to brain immune responses and Alzheimer's disease (AD) pathology.
- Traditional animal models do not fully replicate human-specific microglial behavior in AD.
- Advancements in human cell models are crucial for understanding AD.
Purpose of the Study:
- To review the role of emerging human models in studying microglia in Alzheimer's disease.
- To highlight human-specific microglial responses to AD pathology.
- To explore new therapeutic avenues targeting microglia.
Main Methods:
- Utilizing stem cell-derived microglia and cerebral organoids.
- Analyzing human-specific microglial responses to amyloid plaques.
- Investigating the regulation of neuroinflammation in advanced human models.
Main Results:
- Human models reveal unique microglial responses to amyloid plaques, distinct from animal models.
- These models elucidate the regulation of neuroinflammation in Alzheimer's disease.
- Advanced models provide deeper insights into the complex roles of microglia in AD.
Conclusions:
- Innovative human models are essential for understanding Alzheimer's disease.
- These models offer new perspectives on microglial function and neuroinflammation.
- Targeting microglia presents promising therapeutic strategies for AD.
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