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Complex I deficiency disrupts postnatal neurogenesis in the subventricular zone in a mouse model of Leigh Syndrome

GSE297078 Mus musculus Expression profiling by high throughput sequencing 4 samples Submitted 2025/12/05 Platform GPL34290
Summary
Leigh syndrome (LS) is a complex, genetic mitochondrial disorder defined by neurodegenerative phenotypes with pediatric manifestation. However, recent patient studies suggest behavioral phenotypes more akin to neurodevelopment delays preceding degenerative regression of skills. Reevaluating a mouse model of LS that recapitulates key disease features, we show neurodevelopmental defects occur in the highly neurogenic subventricular zone (SVZ) region postnatally prior to neurodegenerative events. We demonstrate a reduced number of neural stem cells with less regenerative potential and stall in maturation throughout neurodevelopment. We employ single cell RNA sequencing technology to identify shifts in the neural stem cell progenitor lineage in LS mice and identify gene clusters responsible for the dysregulation of neurogenesis. We also demonstrate that cell cycle perturbations are partially responsible for deficits found in the SVZ. Given that LS is purely considered a neurodegenerative disease, we propose that mitochondrial diseases may have neurodevelopmental origins
Published in
Impaired Complex I dysregulates neural/glial precursors and corpus callosum development revealing postnatal defects in Leigh Syndrome mice
Biswas SR, Tomsick PL, Kelly C et al. · bioRxiv : the preprint server for biology 2025 · PMID 40462991 · doi:10.1101/2025.05.16.654318
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Also filed as BioProject PRJNA1262481 and SRA study SRP585023. Searching any of these in the dataset finder brings you back here.

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