Microglia and astrocytes underlie neuroinflammation and synaptic susceptibility in autism spectrum disorder

Area of Science:

• Neuroscience
• Immunology
• Developmental Biology

Background:

• Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder with unclear underlying mechanisms.
• Microglia and astrocytes, key glial cells in the central nervous system, are increasingly implicated in ASD.
• Previous studies report altered numbers of reactive microglia and astrocytes in ASD postmortem tissues and models.

Purpose of the Study:

• To review the fundamental functions of microglia and astrocytes.
• To elucidate the specific contributions of these glial cells to the pathophysiology of ASD.
• To highlight the importance of glial cell research for future ASD therapeutic strategies.

Main Methods:

• Literature review of scientific articles on microglia, astrocytes, and ASD.
• Synthesis of findings regarding glial cell roles in brain homeostasis and neuroinflammation.
• Analysis of evidence linking glial cell dysfunction to ASD characteristics.

Main Results:

• Microglia are involved in synaptic pruning and inflammatory responses.
• Astrocytes regulate brain microenvironment homeostasis via neurotransmitter and ion uptake.
• Evidence suggests dysregulation of both microglia and astrocytes in ASD.

Conclusions:

• Microglia and astrocytes play significant roles in ASD pathogenesis.
• Further research into glial cell function is essential for advancing ASD treatments.
• Targeting glial cells may offer novel therapeutic avenues for ASD.