Evidence map›Paper›PMID 17515610›Full record

ArticleMolecular and cellular biology2007

p53 mediates senescence-like arrest induced by chronic replicational stress.

Andriy Marusyk, Linda J Wheeler, Christopher K Mathews, James DeGregori

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

39 citing papers in PubMed, 80 citations in OpenAlex.

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  6. Antioxidant Effect ofBioMed research international · 2021
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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 2 institutions in 1 country.

Andriy MarusykDepartment of Biochemistry and Molecular Genetics, Program in Molecular Biology, University of Colorado at Denver Health Sciences Center, Aurora, CO 80045, USA.
Linda J Wheeler
Christopher K Mathews
James DeGregori
Oregon State University · USUniversity of Colorado Denver · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Poor competition in hematopoietic stem/progenitor pools favors tumorigenesisR01CA109657 · NCI · UNIVERSITY OF COLORADO DENVER · PI DEGREGORI, JAMES V · 2005 to 2009
$1.1M
NCI NIH HHS 2 P30 CA 46934NCI NIH HHS P30 CA046934NCI NIH HHS R01 CA109657
6 · The paper itself

Abstract

Previous studies have shown that exposure of cells to high levels of replicational stress leads to permanent proliferation arrest that does not require p53. We have examined cellular responses to therapeutically relevant low levels of replicational stress that allow limited proliferation. Chronic exposure to low concentrations of hydroxyurea, aphidicolin, or etoposide induced irreversible cell cycle arrest after several population doublings. Inhibition of p53 activity antagonized this arrest and enhanced the long-term proliferation of p53 mutant cells. p21CIP1 was found to be a critical p53 target for arrest induced by hydroxyurea or aphidicolin, but not etoposide, as judged by the ability of p21CIP1 suppression to mimic the effects of p53 disruption. Suppression of Rad51 expression, required for homologous recombination repair, blocked the ability of mutant p53 to antagonize arrest induced by etoposide, but not aphidicolin. Thus, the ability of mutant p53 to prevent arrest induced by replicational stress per se is primarily dependent on preventing p21CIP1 up-regulation. However, when replication stress is associated with DNA strand breaks (such as with etoposide), up-regulation of homologous recombination repair in response to p53 disruption becomes important. Since replicational stress leads to clonal selection of cells with p53 mutations, our results highlight the potential importance of chronic replicational stress in promoting cancer development.

Indexed as

Cellular SenescenceDNA ReplicationAnimalsAphidicolinCell LineCell ProliferationCheckpoint Kinase 1Cyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p21DNAHerpes Simplex Virus Protein Vmw65HumansMutationNucleotidesProtein KinasesRad51 RecombinaseAphidicolinCheckpoint Kinase 1Cyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p21DNAHerpes Simplex Virus Protein Vmw65NucleotidesProtein KinasesRad51 RecombinaseTumor Suppressor Protein p53

Identifiers

PMID17515610
PMCPMC1952086
OpenAlexW2141161107

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.