Evidence map›Paper›PMID 26027936›Full record

ArticleCell reports2015

mtDNA Mutagenesis Disrupts Pluripotent Stem Cell Function by Altering Redox Signaling.

Riikka H Hämäläinen, Kati J Ahlqvist, Pekka Ellonen, Maija Lepistö, Angela Logan, Timo Otonkoski, Michael P Murphy, Anu Suomalainen

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Age-dependent regenerative mechanisms in the brain.Biochemical Society transactions · 2024
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Emerging roles of mitochondria in animal regeneration.Cell regeneration (London, England) · 2023
    Review
  14. Metabolic control of induced pluripotency.Frontiers in cell and developmental biology · 2023
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Stem Cells of the Aging Brain.Frontiers in aging neuroscience · 2020
    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

8 authors at 3 institutions in 2 countries.

Riikka H HämäläinenResearch Programs Unit, Molecular Neurology, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland.
Kati J AhlqvistResearch Programs Unit, Molecular Neurology, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland.
Pekka EllonenInstitute for Molecular Medicine Finland, FIMM, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland.
Maija LepistöInstitute for Molecular Medicine Finland, FIMM, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland.
Angela LoganMedical Research Council Mitochondrial Biology Unit, Cambridge CB2 0XY, UK.
Timo OtonkoskiResearch Programs Unit, Molecular Neurology, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland; Children's Hospital, Helsinki University Central Hospital, 00290 Helsinki, Finland.
Michael P MurphyMedical Research Council Mitochondrial Biology Unit, Cambridge CB2 0XY, UK.
Anu SuomalainenResearch Programs Unit, Molecular Neurology, Biomedicum-Helsinki, University of Helsinki, 00290 Helsinki, Finland; Department of Neurology, Helsinki University Central Hospital, 00290 Helsinki, Finland; Neuroscience Center, University of Helsinki, 00290 Helsinki, Finland. Electronic address: anu.wartiovaara@helsinki.fi.
University of Helsinki · FIMRC Mitochondrial Biology Unit · GBInstitute for Molecular Medicine Finland · FI

Funding

Medical Research Council MC_U105663142
6 · The paper itself

Abstract

mtDNA mutagenesis in somatic stem cells leads to their dysfunction and to progeria in mouse. The mechanism was proposed to involve modification of reactive oxygen species (ROS)/redox signaling. We studied the effect of mtDNA mutagenesis on reprogramming and stemness of pluripotent stem cells (PSCs) and show that PSCs select against specific mtDNA mutations, mimicking germline and promoting mtDNA integrity despite their glycolytic metabolism. Furthermore, mtDNA mutagenesis is associated with an increase in mitochondrial H2O2, reduced PSC reprogramming efficiency, and self-renewal. Mitochondria-targeted ubiquinone, MitoQ, and N-acetyl-L-cysteine efficiently rescued these defects, indicating that both reprogramming efficiency and stemness are modified by mitochondrial ROS. The redox sensitivity, however, rendered PSCs and especially neural stem cells sensitive to MitoQ toxicity. Our results imply that stem cell compartment warrants special attention when the safety of new antioxidants is assessed and point to an essential role for mitochondrial redox signaling in maintaining normal stem cell function.

Indexed as

AnimalsCell DifferentiationDNA, MitochondrialFemaleMaleMiceMutagenesisOxidation-ReductionPluripotent Stem CellsReactive Oxygen SpeciesSignal TransductionDNA, MitochondrialReactive Oxygen Species

Identifiers

PMID26027936
PMCPMC4509707
OpenAlexW2154599811

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.