Cited by 36Cancer-related Molecular PathwaysGenetics, Aging, and Longevity in Model OrganismsTelomeres, Telomerase, and Senescence

Reassessing the role of p53 in cancer and ageing from an evolutionary perspective

Aranda-Anzaldo, Armando, Dent, Myrna A.R.·2007·Mechanisms of Ageing and Development

Abstract

The gene p53 has been fashioned as the guardian of the genome and as prototype of the tumour suppressor gene (TSG) whose function must be inactivated in order for tumours to develop. The ubiquitous expression of truncated p53 protein isoforms, results in "premature ageing" of laboratory mouse strains engineered for expressing such isoforms. These facts have been construed in the argument that p53 evolved in order to protect organisms with renewable tissues from developing cancer yet, because p53 is also an inducer of cellular senescence or apoptosis after extensive DNA damage, it becomes a limiting factor for tissue renewal by depleting tissues from stem/precursor cells thus leading to whole-organism ageing. From that point of view p53 displays antagonist pleiotropy contributing to the establishment of degenerative diseases and ageing. Therefore, tumour suppression becomes a balancing act between cancer prevention and ageing. Nevertheless, here we present current evidence showing that the aforementioned argument is rather inconsistent and unwarranted on evolutionary grounds. The evolutionary perspective indicates that p53 evolved so as to play a subtle but very important role during development while its role as a TSG is only important in animals that are protected from most sources of extrinsic mortality, thus suggesting that p53 was primarily selected for its developmental role and not as a TSG. Therefore no real antagonist pleiotropy can be attached to p53 functions and their relationship with whole-organism ageing might be a laboratory artefact.

Integrity signals

Registry

Crossref · 10.1016/j.mad.2007.01.001

Cites

112 of 112 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • p53 probably did not evolve in humans specifically to act as a tumor suppressor.

    “Finally, it is unlikely that p53 was selected for as a tumor suppressor in humans, as the frequency of cancer onset is low during peak reproductive years, and increases sharply in old age [105].”

    From The p53 orchestra: Mdm2 and Mdmx set the tone (2010) · cites this paper as [105]

  • Cancer is uncommon during the years of peak reproduction and becomes much more common late in life.

    “Finally, it is unlikely that p53 was selected for as a tumor suppressor in humans, as the frequency of cancer onset is low during peak reproductive years, and increases sharply in old age [105].”

    From The p53 orchestra: Mdm2 and Mdmx set the tone (2010) · cites this paper as [105]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Aranda-Anzaldo, A., & Dent, M. A. R.
Affiliations
Universidad Autónoma del Estado de México (MX)
Venue
Mechanisms of Ageing and Development
Publisher
Elsevier BV
Published
2007-04
Volume
128
Issue
4
Pages
293-302
ISSN
0047-6374 (ISSN-L)
OpenAlex
W1985586273
Cited by
36
References
112
Citations by year
2026: 3 · 2023: 1 · 2022: 1 · 2021: 2 · 2018: 3 · 2017: 1 · 2016: 2 · 2014: 1 · 2013: 2 · 2012: 2
FWCI
0.50
Type
journal article
Language
en
Open access
closed
Locations
  • Mechanisms of Ageing and Development (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
p53, tumor suppressor, aging, antagonistic pleiotropy, premature aging, cellular senescence, apoptosis, DNA damage, tissue renewal, stem cells, degenerative diseases, tumor evolution, extrinsic mortality
MeSH terms
Aging, Animals, Humans, Neoplasms, Neoplasms, Experimental, Tumor Suppressor Protein p53, Evolution, Molecular

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review