Evidence map›Paper›PMID 32694840›Full record

ArticleNature metabolism2019

Defects in mtDNA replication challenge nuclear genome stability through nucleotide depletion and provide a unifying mechanism for mouse progerias.

Riikka H Hämäläinen, Juan C Landoni, Kati J Ahlqvist, Steffi Goffart, Sanna Ryytty, M Obaidur Rahman, Virginia Brilhante, Katherine Icay, Sampsa Hautaniemi, Liya Wang and 2 more

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Nature metabolism, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.9field-weighted citation impact, top 5% 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.

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

53 citing papers in PubMed, 84 citations in OpenAlex.

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  14. Mitochondrial DNA signals driving immune responses: Why, How, Where?Cell communication and signaling : CCS · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 3 countries.

Riikka H HämäläinenA.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland. riikka.martikainen@uef.fi.ORCID http://orcid.org/0000-0002-5102-0672
Juan C Landoni *Research Program in Stem Cells and Metabolism, University of Helsinki, Helsinki, Finland.ORCID http://orcid.org/0000-0002-0318-6707
Kati J Ahlqvist *Research Program in Stem Cells and Metabolism, University of Helsinki, Helsinki, Finland.
Steffi GoffartDepartment of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland.
Sanna RyyttyA.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
M Obaidur RahmanA.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
Virginia BrilhanteResearch Program in Stem Cells and Metabolism, University of Helsinki, Helsinki, Finland.
Katherine IcayResearch Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
Sampsa HautaniemiResearch Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.ORCID http://orcid.org/0000-0002-7749-2694
Liya WangDepartment of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Marikki LaihoDepartment of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Anu SuomalainenResearch Program in Stem Cells and Metabolism, University of Helsinki, Helsinki, Finland. anu.wartiovaara@helsinki.fi.ORCID http://orcid.org/0000-0003-4833-5195
University of Helsinki · FIUniversity of Eastern Finland · FIJohns Hopkins University · USSwedish University of Agricultural Sciences · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial DNA (mtDNA) mutagenesis and nuclear DNA repair defects are considered cellular mechanisms of ageing. mtDNA mutator mice with increased mtDNA mutagenesis show signs of premature ageing. However, why patients with mitochondrial diseases, or mice with other forms of mitochondrial dysfunction, do not age prematurely remains unknown. Here, we show that cells from mutator mice display challenged nuclear genome maintenance similar to that observed in progeric cells with defects in nuclear DNA repair. Cells from mutator mice show slow nuclear DNA replication fork progression, cell cycle stalling and chronic DNA replication stress, leading to double-strand DNA breaks in proliferating progenitor or stem cells. The underlying mechanism involves increased mtDNA replication frequency, sequestering of nucleotides to mitochondria, depletion of total cellular nucleotide pools, decreased deoxynucleoside 5'-triphosphate (dNTP) availability for nuclear genome replication and compromised nuclear genome maintenance. Our data indicate that defects in mtDNA replication can challenge nuclear genome stability. We suggest that defects in nuclear genome maintenance, particularly in the stem cell compartment, represent a unified mechanism for mouse progerias. Therefore, through their destabilizing effects on the nuclear genome, mtDNA mutations are indirect contributors to organismal ageing, suggesting that the direct role of mtDNA mutations in driving ageing-like symptoms might need to be revisited.

Indexed as

DNA ReplicationAnimalsCell LineCell NucleusDNADNA, MitochondrialDNA RepairGenomeMiceMitochondriaMutationNucleotidesProgeriaRNAStem CellsDNADNA, MitochondrialNucleotidesRNA

Identifiers

PMID32694840
OpenAlexW2977605477

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.