Evidence map›Paper›PMID 20798040›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Hyper telomere recombination accelerates replicative senescence and may promote premature aging.

R Tanner Hagelstrom, Krastan B Blagoev, Laura J Niedernhofer, Edwin H Goodwin, Susan M Bailey

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
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  4. Roles for Non-coding RNAs in Spatial Genome Organization.Frontiers in cell and developmental biology · 2019
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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

5 authors at 5 institutions in 2 countries.

R Tanner HagelstromDepartment of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, 80523-1618, USA.
Krastan B Blagoev
Laura J Niedernhofer
Edwin H Goodwin
Susan M Bailey
Colorado State University · USKromaTiD (United States) · USTranslational Genomics Research Institute · USUPMC Hillman Cancer Center · USU.S. National Science Foundation · US

Funding

The contribution of DNA interstrand crosslinks to agingR01ES016114 · NIEHS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIEDERNHOFER, LAURA JANE · 2007 to 2011
$2.5M
NIEHS NIH HHS ES16114NIEHS NIH HHS R01 ES016114
6 · The paper itself

Abstract

Werner syndrome and Bloom syndrome result from defects in the RecQ helicases Werner (WRN) and Bloom (BLM), respectively, and display premature aging phenotypes. Similarly, XFE progeroid syndrome results from defects in the ERCC1-XPF DNA repair endonuclease. To gain insight into the origin of cellular senescence and human aging, we analyzed the dependence of sister chromatid exchange (SCE) frequencies on location [i.e., genomic (G-SCE) vs. telomeric (T-SCE) DNA] in primary human fibroblasts deficient in WRN, BLM, or ERCC1-XPF. Consistent with our other studies, we found evidence of elevated T-SCE in telomerase-negative but not telomerase-positive backgrounds. In telomerase-negative WRN-deficient cells, T-SCE-but not G-SCE-frequencies were significantly increased compared with controls. In contrast, SCE frequencies were significantly elevated in BLM-deficient cells irrespective of genome location. In ERCC1-XPF-deficient cells, neither T- nor G-SCE frequencies differed from controls. A theoretical model was developed that allowed an in silico investigation into the cellular consequences of increased T-SCE frequency. The model predicts that in cells with increased T-SCE, the onset of replicative senescence is dramatically accelerated even though the average rate of telomere loss has not changed. Premature cellular senescence may act as a powerful tumor-suppressor mechanism in telomerase-deficient cells with mutations that cause T-SCE levels to rise. Furthermore, T-SCE-driven premature cellular senescence may be a factor contributing to accelerated aging in Werner and Bloom syndromes, but not XFE progeroid syndrome.

Indexed as

Cell DivisionRecombination, GeneticTelomereAging, PrematureAnimalsCells, CulturedDNA-Binding ProteinsEndonucleasesExodeoxyribonucleasesHumansMiceRecQ HelicasesSister Chromatid ExchangeWerner Syndrome HelicaseBloom syndrome proteinDNA-Binding ProteinsEndonucleasesERCC1 protein, humanExodeoxyribonucleasesRecQ HelicasesWerner Syndrome HelicaseWRN protein, human

Identifiers

PMID20798040
PMCPMC2936608
OpenAlexW2088880824

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.