α-Synuclein in Parkinson's Disease: From Bench to Bedside

Area of Science:

• Neuroscience
• Immunology
• Pathology

Background:

• Alpha-synuclein (α-syn) is a key pathological hallmark in Parkinson's disease (PD).
• Pathological α-syn aggregates in both neuronal and non-neuronal cells across central and peripheral tissues.
• This accumulation occurs early in PD, contributing to disease progression.

Purpose of the Study:

• To review the structure and function of physiological and pathological α-syn.
• To examine the role of α-syn in linking neuroinflammation and neurodegeneration in PD.
• To discuss α-syn as a potential therapeutic target for PD.

Main Methods:

• Literature review of current studies on α-syn in PD.
• Analysis of the correlation between α-syn accumulation and PD symptoms/neuroinflammation.
• Discussion of therapeutic strategies targeting α-syn.

Main Results:

• Pathological α-syn deposition promotes neuroimmune-inflammatory responses, contributing to neuroinflammation in PD.
• α-syn accumulation in central and peripheral tissues correlates with PD, its symptoms, and neuroinflammation.
• Neuronal and non-neuronal α-syn play critical roles at the neuroinflammation-neurodegeneration interface.

Conclusions:

• α-syn acts as a crucial link between neuroinflammation and neurodegeneration in PD.
• Targeting α-syn presents a promising therapeutic avenue for Parkinson's disease.
• Further research into α-syn's multifaceted role is warranted.