ArticleMovement disorders : official journal of the Movement Disorder Society2025
Evaluation of Induced Pluripotent Stem Cell-Derived Dopaminergic Neurons from Siblings with Gaucher Disease Discordant for Parkinsonism.
Article in Movement disorders : official journal of the Movement Disorder Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Abstract
backgroundIn Gaucher disease (GD), glucocerebrosidase (GCase) deficiency results from biallelic pathogenic GBA1 variants. While GBA1 variants are a major risk factor for Parkinson's disease (PD), most patients with GD never develop parkinsonism.
objectivesTo understand factors impacting PD penetrance in patients with GD by comparing induced pluripotent stem cell (iPSC)-derived dopaminergic neurons (DANs) from GD siblings discordant for PD.
methodsiPSCs, reprogrammed from two different sibling pairs where both siblings had GD but only one developed PD, were differentiated into DANs. In one family, DAN enrichment was achieved via geneticin selection and proteomic evaluations were performed.
resultsGCase and lipid substrate levels were similar in GD and GD/PD DANs. After geneticin selection, proteomic analysis of the enriched DANs showed upregulation of molecular chaperones in the GD/PD line.
conclusionPD discordance in both sets of GD siblings did not correlate with GCase or lipid substrate levels in DANs, implicating the involvement of other modifiers. Published 2025. This article is a U.S. Government work and is in the public domain in the USA. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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