Evidence map›Paper›PMID 19396980›Full record

ArticleMechanisms of ageing and development2009

Altered senescence, apoptosis, and DNA damage response in a mutant p53 model of accelerated aging.

George W Hinkal, Catherine E Gatza, Neha Parikh, Lawrence A Donehower

Open access · greenAbstract read
In one paragraph

Article in Mechanisms of ageing and development, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

24 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. p53 and the Carcinogenicity of Chronic Inflammation.Cold Spring Harbor perspectives in medicine · 2016
    Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Four faces of cellular senescence.The Journal of cell biology · 2011
    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

4 authors at 1 institution in 1 country.

George W HinkalInterdepartmental Program in Cell and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
Catherine E Gatza
Neha Parikh
Lawrence A Donehower
Baylor College of Medicine · US

Funding

Oncogenic Function of a P53-Induced PhosphataseR01CA100420 · NCI · BAYLOR COLLEGE OF MEDICINE · PI DONEHOWER, LAWRENCE A. · 2003 to 2012
$2.7M
P53 and Organismal AgingR01AG019693 · NIA · BAYLOR COLLEGE OF MEDICINE · PI DONEHOWER, LAWRENCE A. · 2002 to 2006
$2.7M
INACTIVATED P53 GENE IN MICER01CA054897 · NCI · BAYLOR COLLEGE OF MEDICINE · PI DONEHOWER, LAWRENCE A. · 1992 to 2002
$1.0M
NCI NIH HHS R01 CA054897NCI NIH HHS R01 CA100420NIA NIH HHS R01 AG019693
6 · The paper itself

Abstract

The tumor suppressors p16(INK4a) and p53 have been implicated as contributors to age-associated stem cell decline. Key functions of p53 are the induction of cell cycle arrest, senescence, or apoptosis in response to DNA damage. Here, we examine senescence, apoptosis, and DNA damage responses in a mouse accelerated aging model that exhibits increased p53 activity, the p53(+/m) mouse. Aged tissues of p53(+/m) mice display higher percentages of senescent cells (as determined by senescence-associated beta-galactosidase staining and p16(INK4a) and p21 accumulation) compared to aged tissues from p53(+/+) mice. Surprisingly, despite having enhanced p53 activity, p53(+/m) lymphoid tissues exhibit reduced apoptotic activity in response to ionizing radiation compared to p53(+/+) tissues. Ionizing radiation treatment of p53(+/m) tissues also induces higher and prolonged levels of senescence markers p16(INK4a) and p21, suggesting that in p53(+/m) tissues the p53 stress response is enhanced and is shifted away from apoptosis toward senescence. One potential mechanism for accelerated aging in the p53(+/m) mouse is a failure to remove damaged or dysfunctional cells (including stem and progenitor cells) through apoptosis. The increased accumulation of dysfunctional and senescent cells may contribute to reduced tissue regeneration, tissue atrophy, and some of the accelerated aging phenotypes in p53(+/m) mice.

Indexed as

ApoptosisAgingAnimalsBiomarkersCells, CulturedDNA DamageFemaleFibroblastsMaleMiceMice, TransgenicModels, AnimalMutationStress, PhysiologicalTumor Suppressor Protein p53BiomarkersTumor Suppressor Protein p53

Identifiers

PMID19396980
PMCPMC2722837
OpenAlexW2077336023

What OpenQuestion holds

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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.