Alpha-Synuclein: The Interplay of Pathology, Neuroinflammation, and Environmental Factors in Parkinson's Disease

Neurodegener Dis. 2020;20(2-3):55-64. doi: 10.1159/000511083. Epub 2021 Jan 19.

Abstract

Background: Parkinson's disease (PD) is a multifactorial, chronic, and progressive neurodegenerative disease. α-Synuclein (α-syn), which is the main protein component of Lewy bodies, plays an important role in the pathological hallmarks of PD. However, the pathological function of α-syn and the molecular mechanisms responsible for the degeneration of dopaminergic neurons are still elusive.

Summary: Cumulative evidence implicates that abnormal processing of α-syn will be predicted to lead to pathological changes in PD. Key Messages: In this review, we summarize the structure and physiological function of α-syn, and further discuss the interplay of pathology, neuroinflammation, and environmental factors in PD. Additionally, we suggest future directions for understanding the toxicity of α-syn to neurons, which may ultimately encourage us to better design disease-modifying therapeutic strategies for PD.

Keywords: Environmental factors; Neuroinflammation; Parkinson’s disease; Protein aggregation; α-Synuclein.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Dopaminergic Neurons / metabolism
  • Humans
  • Parkinson Disease / pathology*
  • alpha-Synuclein / metabolism*

Substances

  • alpha-Synuclein