Updated MDSGene review on the clinical and genetic spectrum of LRRK2 variants in Parkinson´s disease

Abstract Pathogenic variants in the LRRK2 gene are one of the most commonly identifiable monogenic causes of Parkinson´s disease (PD, PARK-LRRK2). This systematic MDSGene literature review comprehensively summarizes published demographic, clinical, and genetic findings related to LRRK2 variants ( ht...

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Main Authors: Clara Krüger, Shen-Yang Lim, Alissa Buhrmann, Fenja L. Fahrig, Carolin Gabbert, Natascha Bahr, Harutyun Madoev, Connie Marras, Christine Klein, Katja Lohmann
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:npj Parkinson's Disease
Online Access:https://doi.org/10.1038/s41531-025-00881-9
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Summary:Abstract Pathogenic variants in the LRRK2 gene are one of the most commonly identifiable monogenic causes of Parkinson´s disease (PD, PARK-LRRK2). This systematic MDSGene literature review comprehensively summarizes published demographic, clinical, and genetic findings related to LRRK2 variants ( https://www.mdsgene.org/ ). Data on 4660 individuals with 283 different variants were curated. The median age at onset in the PD patients with available information was 56 years, notably, with approximately one-third having PD onset <50 years. Tremor was the most frequently reported initial symptom and more common than reported in other dominantly inherited forms of PD. Of the 211 potentially PD-causing variants, 25 were classified as pathogenic or likely pathogenic, and the remaining 186 (88.2%) were variants of uncertain significance. p.G2019S was the most frequently reported pathogenic variant, followed by p.R1441G and p.R1441C. This systematic review represents the most extensive database on PARK-LRRK2 to date and provides a vital resource to improve precision medicine.
ISSN:2373-8057