SARS-CoV-2 Proteins Interact with Alpha Synuclein and Induce Lewy Body-like Pathology In Vitro
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES(2022)
Abstract
Growing cases of patients reported have shown a potential relationship between (severe acute respiratory syndrome coronavirus 2) SARS-CoV-2 infection and Parkinson's disease (PD). However, it is unclear whether there is a molecular link between these two diseases. Alpha-synuclein (alpha-Syn), an aggregation-prone protein, is considered a crucial factor in PD pathology. In this study, bioinformatics analysis confirmed favorable binding affinity between alpha-Syn and SARS-CoV-2 spike (S) protein and nucleocapsid (N) protein, and direct interactions were further verified in HEK293 cells. The expression of alpha-Syn was upregulated and its aggregation was accelerated by S protein and N protein. It was noticed that SARS-CoV-2 proteins caused Lewy-like pathology in the presence of alpha-Syn overexpression. By confirming that SARS-CoV-2 proteins directly interact with alpha-Syn, our study offered new insights into the mechanism underlying the development of PD on the background of COVID-19.
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Key words
Parkinson's disease,SARS-CoV-2,alpha-synuclein,spike protein,nucleocapsid protein
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