Gene-corrected p.A30P SNCA patient-derived isogenic neurons rescue neuronal branching and function

Peter A. Barbuti*, Jochen Ohnmacht, Bruno F.R. Santos, Paul M. Antony, François Massart, Gérald Cruciani, Claire M. Dording, Lukas Pavelka, Nicolas Casadei, Yong Jun Kwon, Rejko Krüger

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Abstract

Parkinson’s disease (PD) is characterised by the degeneration of A9 dopaminergic neurons and the pathological accumulation of alpha-synuclein. The p.A30P SNCA mutation generates the pathogenic form of the alpha-synuclein protein causing an autosomal-dominant form of PD. There are limited studies assessing pathogenic SNCA mutations in patient-derived isogenic cell models. Here we provide a functional assessment of dopaminergic neurons derived from a patient harbouring the p.A30P SNCA mutation. Using two clonal gene-corrected isogenic cell lines we identified image-based phenotypes showing impaired neuritic processes. The pathological neurons displayed impaired neuronal activity, reduced mitochondrial respiration, an energy deficit, vulnerability to rotenone, and transcriptional alterations in lipid metabolism. Our data describes for the first time the mutation-only effect of the p.A30P SNCA mutation on neuronal function, supporting the use of isogenic cell lines in identifying image-based pathological phenotypes that can serve as an entry point for future disease-modifying compound screenings and drug discovery strategies.

Original languageEnglish
Article number21946
Pages (from-to)21946
JournalScientific Reports
Volume11
Issue number1
DOIs
Publication statusPublished - 9 Nov 2021

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