SARS-CoV-2 Infection and Alpha-Synucleinopathies: Potential Links and Underlying Mechanisms

Area of Science:

• Neuroscience
• Virology
• Pathology

Background:

• Alpha-synuclein (α-syn) is vital for brain function but can misfold and aggregate, causing neurodegeneration.
• Alpha-synucleinopathies, including Parkinson's disease, are linked to α-syn aggregation and neuroinflammation.
• SARS-CoV-2 infection affects the nervous system, prompting investigation into its role in neurodegenerative diseases.

Purpose of the Study:

• To investigate if SARS-CoV-2 acts as an environmental trigger for alpha-synucleinopathies.
• To review evidence on SARS-CoV-2's role in modulating α-syn function.
• To discuss the potential causal link between SARS-CoV-2 and parkinsonism-like symptoms.

Main Methods:

• Literature review focusing on SARS-CoV-2 and α-synuclein.
• Analysis of existing evidence on neuroinflammation and viral impact on the nervous system.
• Examination of studies linking COVID-19 to neurological symptoms and α-syn aggregation.

Main Results:

• SARS-CoV-2 infection is associated with neurological symptoms and neuroinflammation.
• Evidence suggests SARS-CoV-2 may influence α-syn misfolding and aggregation.
• A potential causal relationship exists between SARS-CoV-2 and the development of parkinsonism-like symptoms.

Conclusions:

• SARS-CoV-2 may contribute to the onset or progression of alpha-synucleinopathies.
• Further research is needed to fully understand the mechanisms linking SARS-CoV-2 to α-syn aggregation and neurodegeneration.
• COVID-19 could represent a novel environmental risk factor for Parkinson's disease and related disorders.