Evidence map›Paper›PMID 11904422›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Preferential maintenance of critically short telomeres in mammalian cells heterozygous for mTert.

Yie Liu, Hue Kha, Mark Ungrin, Murray O Robinson, Lea Harrington

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

50 citing papers in PubMed, 94 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Genomic instability in the naturally and prematurely aged myocardium.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. 5p deletions: Current knowledge and future directions.American journal of medical genetics. Part C, Seminars in medical genetics · 2015
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Telomerase regulation.Mutation research · 2012
    Review
  19. Article
  20. Two RNA subunits and POT1a are components of Arabidopsis telomerase.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
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 2 institutions in 2 countries.

Yie LiuOntario Cancer Institute/Amgen Research Institute, Department of Medical Biophysics, University of Toronto, 620 University Avenue, Toronto, ON, Canada.
Hue Kha
Mark Ungrin
Murray O Robinson
Lea Harrington
Amgen (United States) · USUniversity of Toronto · CA

Funding

NIA NIH HHS AG8422117
6 · The paper itself

Abstract

Prolonged growth of murine embryonic stem (ES) cells lacking the telomerase reverse transcriptase, mTert, results in a loss of telomere DNA and an increased incidence of end-to-end fusions and aneuploidy. Furthermore, loss of only one copy of mTert also results in telomere shortening intermediate between wild-type (wt) and mTert-null ES cells [Liu, Y., Snow, B. E., Hande, M. P., Yeung, D., Erdmann, N. J., Wakeham, A., Itie, A., Siderovski, D. P., Lansdorp, P. M., Robinson, M. O. & Harrington, L. (2000) Curr. Biol. 10, 1459-1462]. Unexpectedly, although average telomere length in mTert(+/-) ES cells declined to a similar level as mTert-null ES cells, mTert(+/-) ES cell lines retained a minimal telomeric DNA signal at all chromosome ends. Consequently, no end-to-end fusions and genome instability were observed in the latest passages of mTert(+/-) ES cell lines. These data uncover a functional distinction between the dosage-dependent function of telomerase in average telomere-length maintenance and the selective maintenance of critically short telomeres in cells heterozygous for mTert. In normal and tumor cells, we suggest that telomerase activity insufficient to maintain a given average telomere length may, nonetheless, provide a protective advantage from end-to-end fusion and genome instability.

Indexed as

HeterozygoteAnimalsCells, CulturedChromosome AberrationsDNA-Binding ProteinsGene DeletionGenomeIn Situ Hybridization, FluorescenceMetaphaseMiceProtein TransportStem CellsTelomeraseTelomereDNA-Binding ProteinsTelomerase

Identifiers

PMID11904422
PMCPMC122569
OpenAlexW1988168493

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.