Evidence map›Paper›PMID 26760297›Full record

ArticlePLoS genetics2016

MPV17 Loss Causes Deoxynucleotide Insufficiency and Slow DNA Replication in Mitochondria.

Ilaria Dalla Rosa, Yolanda Cámara, Romina Durigon, Chloe F Moss, Sara Vidoni, Gokhan Akman, Lilian Hunt, Mark A Johnson, Sarah Grocott, Liya Wang and 9 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04802707 (A Phase II, Monocenter, Single Arm Study To Assess The Safety and Efficacy Of Combination Deoxycytidine and Deoxythymidine For Mitochondrial Depletion Disorders), which is not on this map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
8.4field-weighted citation impact, top 2% of its field
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.

NCT04802707 phase2recruitingnot on this mapstarted 2021, after this paper: background citation

A Phase II, Monocenter, Single Arm Study To Assess The Safety and Efficacy Of Combination Deoxycytidine and Deoxythymidine For Mitochondrial Depletion Disorders

TypeinterventionalSponsorKenneth Myers, MDRan2021 to 2029Enrolled200ConditionsMitochondrial Diseases, Mitochondrial Encephalomyopathy, Mitochondrial Encephalopathy, Mitochondrial DNA DepletionArmsdeoxycytidine and deoxythymidine
3 · Its place in the literature

Who cites it

53 citing papers in PubMed, 108 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Gene therapy and mRNA drugs approach for mitochondrial OXPHOS deficiencies.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  6. Observational
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Red Flags in Primary Mitochondrial Diseases: What Should We Recognize?International journal of molecular sciences · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Mitochondrial DNA Instability in Mammalian Cells.Antioxidants & redox signaling · 2022
    Review
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

19 authors at 10 institutions in 5 countries.

Ilaria Dalla RosaMRC Mill Hill Laboratory, London, United Kingdom.
Yolanda CámaraLaboratory of Mitochondrial Disorders, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Catalonia.
Romina DurigonMRC Mill Hill Laboratory, London, United Kingdom.
Chloe F MossMRC Mill Hill Laboratory, London, United Kingdom.
Sara VidoniMRC Mitochondrial Biology Unit, Wellcome Trust-MRC Building, Cambridge, United Kingdom.
Gokhan AkmanMRC Mill Hill Laboratory, London, United Kingdom.
Lilian HuntMRC Mill Hill Laboratory, London, United Kingdom.
Mark A JohnsonMRC Mitochondrial Biology Unit, Wellcome Trust-MRC Building, Cambridge, United Kingdom.
Sarah GrocottMitochondrial Genetics Group, Nuffield Department of Obstetrics and Gynaecology, Women's Centre, The John Radcliffe Hospital, Oxford, United Kingdom.
Liya WangDepartment of Anatomy, Physiology and Biochemistry, The Swedish University of Agricultural Sciences, Biomedical Center, Uppsala, Sweden.
David R ThorburnMurdoch Childrens Research Institute and University of Melbourne Department of Paediatrics, Royal Children's Hospital, Flemington Road, Parkville, Victoria, Australia.
Michio HiranoDepartment of Neurology, Columbia University Medical Center, New York, New York, United States of America.
Joanna PoultonMitochondrial Genetics Group, Nuffield Department of Obstetrics and Gynaecology, Women's Centre, The John Radcliffe Hospital, Oxford, United Kingdom.
Robert W TaylorWellcome Trust Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, The Medical School, Newcastle upon Tyne, United Kingdom.
Greg ElgarMRC Mill Hill Laboratory, London, United Kingdom.
Ramon MartíLaboratory of Mitochondrial Disorders, Vall d'Hebron Institut de Recerca, Universitat Autònoma de Barcelona, Barcelona, Catalonia.
Peter VosholInstitute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom.
Ian J HoltMRC Mill Hill Laboratory, London, United Kingdom.
Antonella SpinazzolaMRC Mill Hill Laboratory, London, United Kingdom.
John Radcliffe Hospital · GBCentre for Biomedical Network Research on Rare Diseases · ESColumbia University Irving Medical Center · USInstituto de Salud Carlos III · ESMRC Mitochondrial Biology Unit · GBMurdoch Children's Research Institute · AUNewcastle University · GBSwedish University of Agricultural Sciences · SEUniversity of Cambridge · GBWellcome Trust · GB

Funding

Tech-CoreP01HD080642 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI QUINZII, CATARINA M. · 2014 to 2018
$7.8M
Medical Research Council MC_PC_13029Medical Research Council MC_PC_13029/1Medical Research Council MC_PC_13029/2Medical Research Council MC_U105663140Medical Research Council MR/K000608/1NICHD NIH HHS P01 HD080642Wellcome TrustWellcome Trust 096919/Z/11/Z
6 · The paper itself

Abstract

MPV17 is a mitochondrial inner membrane protein whose dysfunction causes mitochondrial DNA abnormalities and disease by an unknown mechanism. Perturbations of deoxynucleoside triphosphate (dNTP) pools are a recognized cause of mitochondrial genomic instability; therefore, we determined DNA copy number and dNTP levels in mitochondria of two models of MPV17 deficiency. In Mpv17 ablated mice, liver mitochondria showed substantial decreases in the levels of dGTP and dTTP and severe mitochondrial DNA depletion, whereas the dNTP pool was not significantly altered in kidney and brain mitochondria that had near normal levels of DNA. The shortage of mitochondrial dNTPs in Mpv17-/- liver slows the DNA replication in the organelle, as evidenced by the elevated level of replication intermediates. Quiescent fibroblasts of MPV17-mutant patients recapitulate key features of the primary affected tissue of the Mpv17-/- mice, displaying virtual absence of the protein, decreased dNTP levels and mitochondrial DNA depletion. Notably, the mitochondrial DNA loss in the patients' quiescent fibroblasts was prevented and rescued by deoxynucleoside supplementation. Thus, our study establishes dNTP insufficiency in the mitochondria as the cause of mitochondrial DNA depletion in MPV17 deficiency, and identifies deoxynucleoside supplementation as a potential therapeutic strategy for MPV17-related disease. Moreover, changes in the expression of factors involved in mitochondrial deoxynucleotide homeostasis indicate a remodeling of nucleotide metabolism in MPV17 disease models, which suggests mitochondria lacking functional MPV17 have a restricted purine mitochondrial salvage pathway.

Indexed as

AnimalsDeoxyguanine NucleotidesDNA, MitochondrialDNA ReplicationFemaleFibroblastsGene Expression RegulationHumansMembrane ProteinsMiceMitochondria, LiverSignal TransductionThymine NucleotidesDeoxyguanine Nucleotidesdeoxyguanosine triphosphateDNA, MitochondrialMembrane ProteinsMpv17 protein, mousethymidine 5'-triphosphateThymine Nucleotides

Identifiers

PMID26760297
PMCPMC4711891
OpenAlexW2235284000

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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 OpenQuestion graph.