Evidence map›Paper›PMID 18717627›Full record

ArticleAntioxidants & redox signaling2009

Inhibition of ref-1 stimulates the production of reactive oxygen species and induces differentiation in adult cardiac stem cells.

Narasimman Gurusamy, Subhendu Mukherjee, Istvan Lekli, Claudia Bearzi, Silvana Bardelli, Dipak K Das

Open access · greenAbstract read
In one paragraph

Article in Antioxidants & redox signaling, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. International journal of molecular sciences · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Adult Cardiac Stem Cell Aging: A Reversible Stochastic Phenomenon?Oxidative medicine and cellular longevity · 2019
    Review
  11. Cardiac Cell Senescence and Redox Signaling.Frontiers in cardiovascular medicine · 2017
    Review
  12. Article
  13. Article
  14. Redox signaling in cardiac renewal.Antioxidants & redox signaling · 2014
    Review
  15. Nox2 and Nox4 influence neonatal c-kit(+) cardiac precursor cell status and differentiation.American journal of physiology. Heart and circulatory physiology · 2013
    Article
  16. Review
  17. Article
  18. Redox signaling in cardiac myocytes.Free radical biology & medicine · 2011
    Review
  19. Hyperbaric oxygen stimulates vasculogenic stem cell growth and differentiation in vivo.Journal of applied physiology (Bethesda, Md. : 1985) · 2009
    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

6 authors at 1 institution in 1 country.

Narasimman GurusamyCardiovascular Research Center, University of Connecticut School of Medicine, Farmington, Connecticut 06030-1110, USA.
Subhendu Mukherjee
Istvan Lekli
Claudia Bearzi
Silvana Bardelli
Dipak K Das
University of Connecticut · US

Funding

PHOSPHOLIPIDS IN MYOCARDIAL REPERFUSION INJURYR01HL034360 · NHLBI · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI DAS, DIPAK K · 1987 to 2009
$2.8M
MYOCARDIAL PRESERVATION DURING ISCHEMIC ARRESTR01HL022559 · NHLBI · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI DAS, DIPAK K · 1985 to 2008
$2.7M
SUPEROXIDE RADICALS IN REPERFUSION INJURYR01HL033889 · NHLBI · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI DAS, DIPAK K · 1986 to 1988
–
NHLBI NIH HHS HL 22559NHLBI NIH HHS HL 33889NHLBI NIH HHS HL 34360
6 · The paper itself

Abstract

Redox effector protein-1 (Ref-1) plays an essential role in DNA repair and redox regulation of several transcription factors. In the present study, we examined the role of Ref-1 in maintaining the redox status and survivability of adult cardiac stem cells challenged with a subtoxic level of H2O2 under inhibition of Ref-1 by RNA interference. Treatment of cardiac stem cells with a low concentration of H2O2 induced Ref-1-mediated survival signaling through phosphorylation of Akt. However, Ref-1 inhibition followed by H2O2 treatment extensively induced the level of intracellular reactive oxygen species (ROS) through activation of the components of NADPH oxidase, like p22( phox ), p47( phox ), and Nox4. Cardiac differentiation markers (Nkx2.5, MEF2C, and GATA4), and cell death by apoptosis were significantly elevated in Ref-1 siRNA followed by H2O2-treated stem cells. Further, inhibition of Ref-1 increased the level of p53 but decreased the phosphorylation of Akt, a molecule involved in survival signaling. Treatment with ROS scavenger N-acetyl-L-cysteine attenuated Ref-1 siRNA-mediated activation of NADPH oxidase and cardiac differentiation. Taken together, these results indicate that Ref-1 plays an important role in maintaining the redox status of cardiac stem cells and protects them from oxidative injury-mediated cell death and differentiation.

Indexed as

Cell DifferentiationAdultBase SequenceDNA-(Apurinic or Apyrimidinic Site) LyaseDNA PrimersHumansIn Situ Nick-End LabelingMyocardiumReactive Oxygen SpeciesReverse Transcriptase Polymerase Chain ReactionStem CellsAPEX1 protein, humanDNA-(Apurinic or Apyrimidinic Site) LyaseDNA PrimersReactive Oxygen Species

Identifiers

PMID18717627
PMCPMC2933566
OpenAlexW2074183044

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.