A Mutual Nexus Between Epilepsy and α-Synuclein: A Puzzle Pathway

Area of Science:

• Neuroscience
• Pathology
• Molecular Biology

Background:

• Alpha-synuclein (α-Syn) is a neuronal protein crucial for neurotransmitter release and synaptic vesicle transport.
• Exosome-associated α-Syn, specific to the central nervous system (CNS), plays a role in epilepsy pathogenesis.

Purpose of the Study:

• To review the potential link between α-Syn and epilepsy.
• To elucidate how α-Syn influences epilepsy pathophysiology.

Main Methods:

• Review of preclinical and clinical studies.
• Analysis of the molecular mechanisms involving α-Syn in epilepsy.

Main Results:

• Upregulation of α-Syn can lead to progressive neuronal dysfunction, oxidative stress, neuroinflammation, and impaired autophagy, contributing to severe epilepsy.
• α-Syn accumulation in epilepsy may be a secondary effect of cellular changes like oxidative stress, neuroinflammation, reduced BDNF and PGN, and autophagy failure.

Conclusions:

• The exact mechanism of α-Syn-induced epileptogenesis remains unclear.
• α-Syn accumulation might be a secondary consequence of epilepsy.
• Further preclinical and clinical studies are essential to establish a causal relationship between α-Syn and epilepsy.