Cited by 482Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsCancer-related Molecular Pathways

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Different telomere damage signaling pathways in human and mouse cells

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Smogorzewska, Agata, de Lange, Titia·2002·The EMBO Journal

Abstract

Programmed telomere shortening in human somatic cells is thought to act as a tumor suppressor pathway, limiting the replicative potential of developing tumor cells. Critically short human telomeres induce senescence either by activating p53 or by inducing the p16/RB pathway, and suppression of both pathways is required to suppress senescence of aged human cells. Here we report that removal of TRF2 from human telomeres and the ensuing de-protection of chromosome ends induced immediate premature senescence. Although the telomeric tracts remained intact, the TRF2(DeltaBDeltaM)-induced premature senescence was indistinguishable from replicative senescence and could be mediated by either the p53 or the p16/RB pathway. Telomere de-protection also induced a growth arrest and senescent morphology in mouse cells. However, in this setting the loss of p53 function was sufficient to completely abrogate the arrest, indicating that the p16/RB response to telomere dysfunction is not active in mouse cells. These findings reveal a fundamental difference in telomere damage signaling in human and mouse cells that bears on the use of mouse models for the telomere tumor suppressor pathway.

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Metadata

Authors
Smogorzewska, A., & de Lange, T.
Affiliations
Rockefeller University (US)
Venue
The EMBO Journal
Published
2002-08-15
Volume
21
Issue
16
Pages
4338-4348
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2126815966
Cited by
482
References
55
Citations by year
2026: 4 · 2025: 8 · 2024: 11 · 2023: 9 · 2022: 3 · 2021: 16 · 2020: 10 · 2019: 9 · 2018: 17 · 2017: 13 · 2016: 14 · 2015: 19 · 2014: 14 · 2013: 20 · 2012: 25
FWCI
28.62
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ellison Medical Foundation
  • Memorial Sloan-Kettering Cancer Center
  • National Institutes of Health
  • National Institute on Aging (AG 16643)
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
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
premature senescence, TRF2, p53, p16/Rb pathway, replicative senescence, tumor suppressor pathways, human-mouse differences, growth arrest, telomere dysfunction
MeSH terms
Animals, Cell Line, Chromosome Aberrations, DNA Damage, DNA-Binding Proteins, Fibroblasts, Humans, Signal Transduction, Tumor Suppressor Protein p53, Telomere, Cellular Senescence, Cyclin-Dependent Kinase Inhibitor p16, Telomeric Repeat Binding Protein 2, Mice

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