Exploring microglial replacement: From disease models to clinical translation.

Area of Science:

• Neuroscience
• Immunology
• Regenerative Medicine

Background:

• Microglia are key immune cells in the central nervous system (CNS), crucial for surveillance, synaptic plasticity, and neuroinflammation.
• Dysfunctional microglia contribute to various CNS disorders.
• Microglial replacement therapy is emerging as a strategy to restore CNS health.

Purpose of the Study:

• To review the current research on microglial replacement therapy for CNS disorders.
• To highlight preclinical findings on depletion methods, cell sources, and therapeutic impacts.
• To discuss challenges and considerations for clinical translation.

Main Methods:

• Literature review of preclinical studies on microglial replacement therapy.
• Analysis of diverse microglial depletion models.
• Evaluation of different sources for replaced microglia.
• Assessment of therapeutic outcomes in CNS disorder models.

Main Results:

• Preclinical studies demonstrate the feasibility of microglial replacement.
• Various depletion and repopulation strategies show potential for mitigating CNS pathology.
• Impacts on neuroinflammation and functional recovery are observed across different models.

Conclusions:

• Microglial replacement therapy shows significant promise for treating CNS disorders.
• It offers a novel approach to restore CNS homeostasis and reduce neuroinflammation.
• Further research and clinical translation are needed to realize its full therapeutic potential.