Journal Article

DZNE-2026-00040

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Integrating simulated and experimental data to identify mitochondrial bioenergetic defects in Parkinson's Disease models.

Chenna, S. ; Joselin, A. ; Theurey, P. ; Bano, D.DZNE* ; Pizzo, P. ; Ankarcrona, M. ; Park, D. S. ; Prehn, J. H. ; Connolly, N. M. C.

2026
PLOS San Francisco, California, US

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Please use a persistent id in citations: doi:10.1371/journal.pone.0339326

Abstract: Mitochondrial bioenergetics are vital for ATP production and are associated with several diseases, including Parkinson's Disease (PD). Here, we simulated a computational model of mitochondrial ATP production to interrogate mitochondrial bioenergetics under physiological and pathophysiological conditions, and provide a data resource that can be used to interpret mitochondrial bioenergetics experiments. We first characterised the impact of several common electron transport chain (ETC) impairments on experimentally-observable bioenergetic parameters. We then established an analysis pipeline to integrate simulations with experimental data and predict the molecular defects underlying experimental bioenergetic phenotypes. We applied the pipeline to data from PD models. We verified that the impaired bioenergetic profile previously measured in Parkin knockout (KO) neurons can be explained by increased mitochondrial uncoupling. We then generated primary cortical neurons from a Pink1 KO mouse model of PD, and measured reduced oxygen consumption rate (OCR) capacity and increased resistance to Complex III inhibition. Here, our pipeline predicted that multiple impairments are required to explain this bioenergetic phenotype. Finally, we provide all simulated data as a user-friendly resource that can be used to interpret mitochondrial bioenergetics experiments, predict underlying molecular defects, and inform experimental design.

Keyword(s): Animals (MeSH) ; Mitochondria: metabolism (MeSH) ; Mitochondria: pathology (MeSH) ; Parkinson Disease: metabolism (MeSH) ; Parkinson Disease: pathology (MeSH) ; Parkinson Disease: genetics (MeSH) ; Energy Metabolism (MeSH) ; Mice (MeSH) ; Disease Models, Animal (MeSH) ; Neurons: metabolism (MeSH) ; Neurons: pathology (MeSH) ; Mice, Knockout (MeSH) ; Computer Simulation (MeSH) ; Oxygen Consumption (MeSH) ; Ubiquitin-Protein Ligases: genetics (MeSH) ; Ubiquitin-Protein Ligases: metabolism (MeSH) ; Protein Kinases: genetics (MeSH) ; Protein Kinases: metabolism (MeSH) ; Adenosine Triphosphate: metabolism (MeSH) ; Adenosine Triphosphate: biosynthesis (MeSH) ; Humans (MeSH) ; PTEN-induced putative kinase ; Ubiquitin-Protein Ligases ; Protein Kinases ; Adenosine Triphosphate ; parkin protein

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Contributing Institute(s):

1. Aging and Neurodegeneration (AG Bano)

Research Program(s):

1. 351 - Brain Function (POF4-351) (POF4-351)

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