학술논문

Genomewide Association Studies of LRRK2 Modifiers of Parkinson's Disease
Document Type
article
Source
Annals of Neurology. 90(1)
Subject
Biomedical and Clinical Sciences
Neurosciences
Clinical Sciences
Aging
Genetics
Brain Disorders
Prevention
Parkinson's Disease
Neurodegenerative
Human Genome
Aetiology
2.1 Biological and endogenous factors
Neurological
Aged
Female
Genetic Predisposition to Disease
Genome-Wide Association Study
Genotype
Humans
Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
Male
Middle Aged
Mutation
Parkinson Disease
Penetrance
23andMe Research Team
Neurology & Neurosurgery
Clinical sciences
Language
Abstract
ObjectiveThe aim of this study was to search for genes/variants that modify the effect of LRRK2 mutations in terms of penetrance and age-at-onset of Parkinson's disease.MethodsWe performed the first genomewide association study of penetrance and age-at-onset of Parkinson's disease in LRRK2 mutation carriers (776 cases and 1,103 non-cases at their last evaluation). Cox proportional hazard models and linear mixed models were used to identify modifiers of penetrance and age-at-onset of LRRK2 mutations, respectively. We also investigated whether a polygenic risk score derived from a published genomewide association study of Parkinson's disease was able to explain variability in penetrance and age-at-onset in LRRK2 mutation carriers.ResultsA variant located in the intronic region of CORO1C on chromosome 12 (rs77395454; p value = 2.5E-08, beta = 1.27, SE = 0.23, risk allele: C) met genomewide significance for the penetrance model. Co-immunoprecipitation analyses of LRRK2 and CORO1C supported an interaction between these 2 proteins. A region on chromosome 3, within a previously reported linkage peak for Parkinson's disease susceptibility, showed suggestive associations in both models (penetrance top variant: p value = 1.1E-07; age-at-onset top variant: p value = 9.3E-07). A polygenic risk score derived from publicly available Parkinson's disease summary statistics was a significant predictor of penetrance, but not of age-at-onset.InterpretationThis study suggests that variants within or near CORO1C may modify the penetrance of LRRK2 mutations. In addition, common Parkinson's disease associated variants collectively increase the penetrance of LRRK2 mutations. ANN NEUROL 2021;90:82-94.