The Role of Structural Variants in the Genetic Architecture of Parkinson's Disease

Int J Mol Sci. 2024 Apr 27;25(9):4801. doi: 10.3390/ijms25094801.

Abstract

Parkinson's disease (PD) significantly impacts millions of individuals worldwide. Although our understanding of the genetic foundations of PD has advanced, a substantial portion of the genetic variation contributing to disease risk remains unknown. Current PD genetic studies have primarily focused on one form of genetic variation, single nucleotide variants (SNVs), while other important forms of genetic variation, such as structural variants (SVs), are mostly ignored due to the complexity of detecting these variants with traditional sequencing methods. Yet, these forms of genetic variation play crucial roles in gene expression and regulation in the human brain and are causative of numerous neurological disorders, including forms of PD. This review aims to provide a comprehensive overview of our current understanding of the involvement of coding and noncoding SVs in the genetic architecture of PD.

Keywords: Parkinson’s disease; genetics; long-read sequencing; structural variants.

Publication types

  • Review

MeSH terms

  • Genetic Predisposition to Disease*
  • Genetic Variation
  • Genome-Wide Association Study
  • Humans
  • Parkinson Disease* / genetics
  • Polymorphism, Single Nucleotide*

Grants and funding

This research was supported, in part, by the Intramural Research Program of the National Institutes of Health (National Institute on Aging, National Institute of Neurological Disorders and Stroke project numbers: project numbers 1ZIA-NS003154, Z01-AG000949-02, and Z01-ES101986). K.D. reports receiving grants from the Japan Society for the Promotion of Science Research Fellowship for Japanese Biomedical and Behavioral Researchers at the National Institutes of Health.