Modulating α-synuclein propagation and decomposition: Implications in Parkinson's disease therapy

Area of Science:

• Neuroscience
• Biochemistry
• Pathology

Background:

• Alpha-synuclein (α-Syn) is intrinsically linked to Parkinson's disease (PD) pathogenesis.
• Pathological α-Syn conformations and aggregation into Lewy bodies (LBs) cause neurotoxicity and neurodegeneration, correlating with Braak staging.
• Current PD diagnostics lack early biomarkers, and treatments primarily manage symptoms, not disease progression.

Purpose of the Study:

• To comprehensively review the role of α-Syn in physiological and pathological states concerning PD.
• To systematically analyze the origin, secretion, aggregation, propagation, and degradation of α-Syn.
• To identify potential therapeutic targets by reviewing drug candidates aimed at mitigating abnormal α-Syn aggregation.

Main Methods:

• Literature review summarizing existing research on α-Syn.
• Systematic analysis of α-Syn's lifecycle (origin, secretion, aggregation, propagation, degradation).
• Review of preclinical and clinical studies on therapeutic strategies targeting α-Syn.

Main Results:

• Detailed summary of α-Syn's physiological functions and its pathological involvement in PD.
• Elucidation of the mechanisms by which α-Syn aggregation and propagation lead to neurodegeneration.
• Identification of key regulatory factors influencing α-Syn processing and aggregation.

Conclusions:

• Understanding α-Syn's multifaceted role is crucial for developing effective PD therapies.
• Targeting α-Syn aggregation pathways offers promising therapeutic avenues for Parkinson's disease.
• Further research into α-Syn regulation and drug candidates is essential for disease modification.