Spatial heterogeneity in microglia-complement crosstalk: Implications for synaptic pruning in Alzheimer's disease.

Area of Science:

• Neuroscience
• Immunology
• Pharmacology

Background:

• Alzheimer's disease (AD) is characterized by early-stage synaptic loss.
• Microglia-complement interactions are central to synaptic pruning, a key pathological feature in AD.
• These interactions display significant spatial heterogeneity in AD.

Purpose of the Study:

• To review the synergistic mechanisms of microglia and complement in physiological synaptic pruning.
• To analyze the evolution of the complement-immune network in AD progression.
• To explore genetic factors amplifying spatial heterogeneity in synaptic pruning.

Main Methods:

• Systematic literature review.
• Analysis of microglia-complement interactions in synaptic pruning.
• Exploration of genetic influences on synaptic pruning heterogeneity.

Main Results:

• Microglia and complement systems play a synergistic role in synaptic pruning.
• The complement-immune network dynamically evolves during AD progression.
• Genetic factors amplify spatial heterogeneity in synaptic pruning.

Conclusions:

• Understanding microglia-complement interactions is crucial for AD research.
• Targeting synaptic pruning offers therapeutic potential for AD.
• Combined Western and traditional Chinese medicine approaches may be beneficial for AD treatment.