Evidence map›Paper›PMID 40069408›Full record

ArticleCommunications biology2025

Mitochondrial dysfunction drives a neuronal exhaustion phenotype in methylmalonic aciduria.

Matthew C S Denley, Monique S Straub, Giulio Marcionelli, Miriam A Güra, David Penton, Igor Delvendahl, Martin Poms, Beata Vekeriotaite, Sarah Cherkaoui, Federica Conte and 3 more

Abstract read
In one paragraph

Article in Communications biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Organoids for Metabolic Disease Modeling.Journal of inherited metabolic disease · 2026
    Review
  6. Review
  7. Review
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Matthew C S DenleyDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.ORCID http://orcid.org/0000-0003-2798-9448
Monique S StraubDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.ORCID http://orcid.org/0000-0002-7721-5048
Giulio MarcionelliDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.
Miriam A GüraDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.ORCID http://orcid.org/0000-0003-2485-2294
David PentonElectrophysiology Core Facility, University of Zurich, Zurich, CH-8057, Switzerland.ORCID http://orcid.org/0000-0002-6425-3766
Igor DelvendahlDepartment of Molecular Life Sciences, University of Zurich, Zurich, CH-8057, Switzerland.ORCID http://orcid.org/0000-0002-6151-2363
Martin PomsClinical Chemistry and Biochemistry and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.ORCID http://orcid.org/0000-0002-4426-314X
Beata VekeriotaiteLaboratory of Nutrition and Metabolic Epigenetics, Institute for Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8603, Switzerland.ORCID http://orcid.org/0000-0002-1030-5110
Sarah CherkaouiPediatric Cancer Metabolism Laboratory, Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland.ORCID http://orcid.org/0000-0002-0636-4177
Federica ConteDepartment of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud, University Medical Center, Nijmegen, 6525 GA, Netherlands.ORCID http://orcid.org/0000-0003-1481-7401
Ferdinand von MeyennLaboratory of Nutrition and Metabolic Epigenetics, Institute for Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8603, Switzerland.ORCID http://orcid.org/0000-0001-9920-3075
D Sean FroeseDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland. Sean.Froese@kispi.uzh.ch.ORCID http://orcid.org/0000-0003-1557-3517
Matthias R BaumgartnerDivision of Metabolism and Children's Research Center, University Children's Hospital Zurich, University of Zurich, Zurich, CH-8032, Switzerland. Matthias.Baumgartner@kispi.uzh.ch.ORCID http://orcid.org/0000-0002-9270-0826

Funding

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (Swiss National Science Foundation) 310030_175779Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (Swiss National Science Foundation) 310030_192505Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (Swiss National Science Foundation) 310030_212505
6 · The paper itself

Abstract

Methylmalonic aciduria (MMA) is an inborn error of metabolism resulting in loss of function of the enzyme methylmalonyl-CoA mutase (MMUT). Despite acute and persistent neurological symptoms, the pathogenesis of MMA in the central nervous system is poorly understood, which has contributed to a dearth of effective brain specific treatments. Here we utilised patient-derived induced pluripotent stem cells and in vitro differentiation to generate a human neuronal model of MMA. We reveal strong evidence of mitochondrial dysfunction caused by deficiency of MMUT in patient neurons. By employing patch-clamp electrophysiology, targeted metabolomics, and bulk transcriptomics, we expose an altered state of excitability, which is exacerbated by application of dimethyl-2-oxoglutarate, and we suggest may be connected to metabolic rewiring. Our work provides first evidence of mitochondrial driven neuronal dysfunction in MMA, which through our comprehensive characterisation of this paradigmatic model, enables first steps to identifying effective therapies.

Indexed as

Amino Acid Metabolism, Inborn ErrorsMethylmalonyl-CoA MutaseMitochondriaNeuronsHumansInduced Pluripotent Stem CellsPhenotypeMethylmalonyl-CoA Mutase

Identifiers

PMID40069408
PMCPMC11897345

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.