Evidence map›Paper›PMID 25378300›Full record

ArticleNucleic acids research2014

Opposing roles of mitochondrial and nuclear PARP1 in the regulation of mitochondrial and nuclear DNA integrity: implications for the regulation of mitochondrial function.

Bartosz Szczesny, Attila Brunyanszki, Gabor Olah, Sankar Mitra, Csaba Szabo

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
4.3field-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

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. NADFrontiers in neurology · 2026
    Pooled it
  2. Review
  3. Article
  4. Review
  5. Mitochondria-Nuclear Crosstalk: Orchestrating mtDNA Maintenance.Environmental and molecular mutagenesis · 2025
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. PARP1 and OGG1 in Medicated Patients With Depression and the Response to ECT.The international journal of neuropsychopharmacology · 2023
    Article
  19. Article
  20. Mitochondrial PARP1 regulates NADExperimental & molecular medicine · 2022
    Article

4 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Bartosz SzczesnyDepartment of Anesthesiology, University of Texas Medical Branch, Galveston, TX 77555, USA baszczes@utmb.edu.
Attila BrunyanszkiDepartment of Anesthesiology, University of Texas Medical Branch, Galveston, TX 77555, USA.
Gabor OlahDepartment of Anesthesiology, University of Texas Medical Branch, Galveston, TX 77555, USA.
Sankar MitraRadiation Oncology and Cancer Center, Houston Methodist Research Institute, Houston, TX 77030, USA.
Csaba SzaboDepartment of Anesthesiology, University of Texas Medical Branch, Galveston, TX 77555, USA baszczes@utmb.edu.
The University of Texas Medical Branch at Galveston · USHouston Methodist · US

Funding

MODULATION OF THE POSTBURN HYPERMETABOLIC RESPONSER01GM056687 · NIGMS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI HERNDON, DAVID N. · 1998 to 2017
$9.0M
STRUCTURE AND REGULATION OF DNA REPAIR GENES OF MAMMALSR01CA053791 · NCI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI MITRA, SANKAR · 1991 to 2011
$4.0M
NCI NIH HHS R01CA53791NIGMS NIH HHS R01GM056687
6 · The paper itself

Abstract

The positive role of PARP1 in regulation of various nuclear DNA transactions is well established. Although a mitochondrial localization of PARP1 has been suggested, its role in the maintenance of the mitochondrial DNA is currently unknown. Here we investigated the role of PARP1 in the repair of the mitochondrial DNA in the baseline and oxidative stress conditions. We used wild-type A549 cells or cells depleted of PARP1. Our data show that intra-mitochondrial PARP1 interacts with a key mitochondrial-specific DNA base excision repair (BER) enzymes, namely EXOG and DNA polymerase gamma (Polγ), which under oxidative stress become poly(ADP-ribose)lated (PARylated). Interaction between mitochondrial BER enzymes was significantly affected in the presence of PARP1. Moreover, the repair of the oxidative-induced damage to the mitochondrial DNA in PARP1-depleted cells was found to be more robust compared to control counterpart. In addition, mitochondrial biogenesis was enhanced in PARP1-depleted cells, including mitochondrial DNA copy number and mitochondrial membrane potential. This observation was further confirmed by analysis of lung tissue isolated from WT and PARP1 KO mice. In summary, we conclude that mitochondrial PARP1, in opposite to nuclear PARP1, exerts a negative effect on several mitochondrial-specific transactions including the repair of the mitochondrial DNA.

Indexed as

DNA RepairAnimalsCell LineCell NucleusDNA DamageDNA, MitochondrialDNA Repair EnzymesHumansLungMice, KnockoutMitochondriaOxidative StressPoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) PolymerasesDNA, MitochondrialDNA Repair EnzymesPARP1 protein, humanParp1 protein, mousePoly (ADP-Ribose) Polymerase-1Poly(ADP-ribose) Polymerases

Identifiers

PMID25378300
PMCPMC4245951
OpenAlexW2095603792

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.