Cited by 797Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsDNA and Nucleic Acid Chemistry

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Senescence Induced by Altered Telomere State, Not Telomere Loss

Karlseder, Jan, Smogorzewska, Agata, de Lange, Titia·2002·Science

Abstract

Primary human cells in culture invariably stop dividing and enter a state of growth arrest called replicative senescence. This transition is induced by programmed telomere shortening, but the underlying mechanisms are unclear. Here, we report that overexpression of TRF2, a telomeric DNA binding protein, increased the rate of telomere shortening in primary cells without accelerating senescence. TRF2 reduced the senescence setpoint, defined as telomere length at senescence, from 7 to 4 kilobases. TRF2 protected critically short telomeres from fusion and repressed chromosome-end fusions in presenescent cultures, which explains the ability of TRF2 to delay senescence. Thus, replicative senescence is induced by a change in the protected status of shortened telomeres rather than by a complete loss of telomeric DNA.

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Crossref · 10.1126/science.1069523

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Research works printed but not linked: 2

  1. Supplementary material is available on Science Online at www.sciencemag.org/cgi/content/full/295/5564/2446/DC1.
  2. Hinds P. W., et al., Cell Growth Differ. 1, 571 (1990).

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Metadata

Authors
Karlseder, J., Smogorzewska, A., & de Lange, T.
Affiliations
  • Rockefeller University (US)
  • Laboratory for Cell Biology and Genetics, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.
Venue
Science
Published
2002-03-29
Volume
295
Issue
5564
Pages
2446-2449
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2088926897
Cited by
796
References
25
Citations by year
2026: 10 · 2025: 11 · 2024: 22 · 2023: 11 · 2022: 14 · 2021: 22 · 2020: 18 · 2019: 19 · 2018: 26 · 2017: 22 · 2016: 20 · 2015: 29 · 2014: 24 · 2013: 22 · 2012: 35
FWCI
47.76
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (AG 16643)
  • National Cancer Institute (R01CA076027, CA76027)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
replicative senescence, telomere shortening, TRF2, telomere length, telomere fusion, primary human cells, growth arrest
MeSH terms
Antigens, Polyomavirus Transforming, Cell Division, Cell Line, Cells, Cultured, DNA, DNA-Binding Proteins, Humans, Oncogene Proteins, Viral, Repressor Proteins, Retroviridae, Transformation, Genetic, Tumor Suppressor Protein p53, Retinoblastoma Protein, Telomere, Cellular Senescence, Telomeric Repeat Binding Protein 2, Papillomavirus E7 Proteins

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