Neurons and Glia Interplay in α-Synucleinopathies

Area of Science:

• Neuroscience
• Pathology
• Cell Biology

Background:

• Alpha-synuclein accumulation in protein inclusions is a hallmark of alpha-synucleinopathies.
• Pathological alpha-synuclein aggregates are found in both neurons and glial cells.
• Glial cells internalize alpha-synuclein, contributing to pathology spread.

Purpose of the Study:

• To summarize current knowledge on alpha-synuclein's role in neurons and glia.
• To highlight the neuron-glia connectome's contribution to disease.
• To identify potential therapeutic targets for alpha-synucleinopathies.

Main Methods:

• Literature review and synthesis of existing research.
• Analysis of alpha-synuclein's pathological mechanisms in different cell types.
• Focus on the interplay between neurons and glia in disease progression.

Main Results:

• Alpha-synuclein aggregates in neurons (Lewy bodies) and glia (glial cytoplasmic inclusions).
• Glial cells, including astrocytes and microglia, are involved in alpha-synuclein internalization and spread.
• Disrupted glial function by aggregated alpha-synuclein contributes to neurodegeneration.

Conclusions:

• The neuron-glia connectome plays a critical role in the initiation and progression of alpha-synucleinopathies.
• Targeting the neuron-glia interactions offers potential therapeutic strategies.
• Further research into glial alpha-synuclein accumulation mechanisms is warranted.