Cited by 74Telomeres, Telomerase, and SenescenceDNA Repair MechanismsDNA and Nucleic Acid Chemistry

Escape from Telomere-Driven Crisis Is DNA Ligase III Dependent

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Jones, Rhiannon E., Oh, Sehyun, Grimstead, Julia W., Zimbric, Jacob, Roger, Laureline, Heppel, Nicole H., Ashelford, Kevin E., Liddiard, Kate +2 more·2014·Cell Reports

Abstract

Short dysfunctional telomeres are capable of fusion, generating dicentric chromosomes and initiating breakage-fusion-bridge cycles. Cells that escape the ensuing cellular crisis exhibit large-scale genomic rearrangements that drive clonal evolution and malignant progression. We demonstrate that there is an absolute requirement for fully functional DNA ligase III (LIG3), but not ligase IV (LIG4), to facilitate the escape from a telomere-driven crisis. LIG3- and LIG4-dependent alternative (A) and classical (C) nonhomologous end-joining (NHEJ) pathways were capable of mediating the fusion of short dysfunctional telomeres, both displaying characteristic patterns of microhomology and deletion. Cells that failed to escape crisis exhibited increased proportions of C-NHEJ-mediated interchromosomal fusions, whereas those that escaped displayed increased proportions of intrachromosomal fusions. We propose that the balance between inter- and intrachromosomal telomere fusions dictates the ability of human cells to escape crisis and is influenced by the relative activities of A- and C-NHEJ at short dysfunctional telomeres.

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Crossref · 10.1016/j.celrep.2014.07.007

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  • In colorectal cancer, telomere fusion occurs during the adenoma-carcinoma transition and may also be present before most somatic mutations.

    “In colorectal cancer, telomere fusion occurs during the adenoma–carcinoma transition and may also be present before the occurrence of most somatic mutations78.”
  • Evidence for past telomere crisis has been obtained in chronic lymphocytic leukaemia, breast cancer, colorectal adenomas, and other solid tumours using a PCR-based assay for telomere-telomere fusions.

    “Using this approach, evidence for past telomere crisis has been obtained in CLL as well as in breast cancer, colorectal adenomas and other solid tumours75,77,78.”
  • Studies on telomere dynamics and karyotype analysis in many human tumor types revealed telomeric fusions indicative of telomere crisis.

    “studies on telomere dynamics and karyotype analysis in many human tumor types revealed telomeric fusions, indicative of telomere crisis [347,352,354,355].”

    From Mechanisms and Regulation of Cellular Senescence (2021) · cites this paper as [352]

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Authors
Jones, R. E., Oh, S., Grimstead, J. W., Zimbric, J., Roger, L., Heppel, N. H., Ashelford, K. E., Liddiard, K., Hendrickson, E. A., & Baird, D. M.
Affiliations
  • Cardiff University (GB)
  • University of Minnesota (US)
Corresponding author
Baird, Duncan M.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2014-08
Volume
8
Issue
4
Pages
1063-1076
ISSN
2211-1247 (ISSN-L)
OpenAlex
W1976685047
Cited by
74
References
70
Citations by year
2026: 4 · 2025: 1 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 10 · 2020: 9 · 2019: 4 · 2018: 11 · 2017: 9 · 2016: 6 · 2015: 8 · 2014: 1
FWCI
5.32
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Funders
  • National Institute for Social Care and Health Research
  • Cancer Research UK (C17199/A13490)
  • National Cancer Institute (R01CA154461, CA15446)
  • National Institute of General Medical Sciences (R01GM088351, GM088351)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
telomere crisis, DNA ligase III, DNA ligase IV, non-homologous end joining, telomere fusion, dicentric chromosomes, breakage-fusion-bridge cycles, microhomology, genome rearrangement, clonal evolution, malignant progression
MeSH terms
DNA Ligase ATP, Poly-ADP-Ribose Binding Proteins, Humans, DNA Ligases, Recombination, Genetic, Apoptosis, Catalytic Domain, Xenopus Proteins, HCT116 Cells, Telomere Homeostasis, DNA End-Joining Repair

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