Evidence map›Paper›PMID 16478982›Full record

ArticleMolecular and cellular biology2006

DNA damage during reoxygenation elicits a Chk2-dependent checkpoint response.

Rachel A Freiberg, Ester M Hammond, Mary Jo Dorie, Scott M Welford, Amato J Giaccia

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

30 citing papers in PubMed, 64 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. ATM activation in hypoxia - causes and consequences.Molecular & cellular oncology · 2014
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Tumor hypoxia and genetic alterations in sporadic cancers.The journal of obstetrics and gynaecology research · 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

5 authors at 1 institution in 1 country.

Rachel A FreibergCCSR South, Room 1255, Department of Radiation Oncology, Stanford University, Stanford, CA 94305-5152, USA.
Ester M Hammond
Mary Jo Dorie
Scott M Welford
Amato J Giaccia
Center for Clinical Research (United States) · US

Funding

TUMOR BIOLOGYT32CA009151 · NCI · STANFORD UNIVERSITY · PI CLEARY, MICHAEL L · 1985 to 2014
$5.5M
HYPOXIA AND GENE REPRESSIONR01CA088480 · NCI · STANFORD UNIVERSITY · PI GIACCIA, AMATO J. · 2000 to 2009
$3.4M
Hypoxia and Gene RepressionR37CA088480 · NCI · STANFORD UNIVERSITY · PI GIACCIA, AMATO J. · 2010 to 2014
$1.6M
NCI NIH HHS CA 88480NCI NIH HHS R01 CA088480NCI NIH HHS R37 CA088480NCI NIH HHS T32 CA009151
6 · The paper itself

Abstract

Due to the abnormal vasculature of solid tumors, tumor cell oxygenation can change rapidly with the opening and closing of blood vessels, leading to the activation of both hypoxic response pathways and oxidative stress pathways upon reoxygenation. Here, we report that ataxia telangiectasia mutated-dependent phosphorylation and activation of Chk2 occur in the absence of DNA damage during hypoxia and are maintained during reoxygenation in response to DNA damage. Our studies involving oxidative damage show that Chk2 is required for G2 arrest. Following exposure to both hypoxia and reoxygenation, Chk2-/- cells exhibit an attenuated G2 arrest, increased apoptosis, reduced clonogenic survival, and deficient phosphorylation of downstream targets. These studies indicate that the combination of hypoxia and reoxygenation results in a G2 checkpoint response that is dependent on the tumor suppressor Chk2 and that this checkpoint response is essential for tumor cell adaptation to changes that result from the cycling nature of hypoxia and reoxygenation found in solid tumors.

Indexed as

AcetylcysteineApoptosisAtaxia TelangiectasiaCarcinomacdc25 PhosphatasesCell HypoxiaCell SurvivalCheckpoint Kinase 2Colorectal NeoplasmsDNA DamageFree Radical ScavengersG2 PhaseHumansOxygenPhosphorylationProtein Serine-Threonine KinasesAcetylcysteineCDC25A protein, humancdc25 PhosphatasesCheckpoint Kinase 2CHEK2 protein, humanFree Radical ScavengersOxygenProtein Serine-Threonine KinasesReactive Oxygen SpeciesThreonineTumor Suppressor Protein p53

Identifiers

PMID16478982
PMCPMC1430245
OpenAlexW2121651181

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.