Cited by 675Telomeres, Telomerase, and SenescenceDNA Repair MechanismsMicrotubule and mitosis dynamics

Chromothripsis and Kataegis Induced by Telomere Crisis

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Maciejowski, John, Li, Yilong, Bosco, Nazario, Campbell, Peter J., de Lange, Titia·2015·Cell

Abstract

Telomere crisis occurs during tumorigenesis when depletion of the telomere reserve leads to frequent telomere fusions. The resulting dicentric chromosomes have been proposed to drive genome instability. Here, we examine the fate of dicentric human chromosomes in telomere crisis. We observed that dicentric chromosomes invariably persisted through mitosis and developed into 50-200 μm chromatin bridges connecting the daughter cells. Before their resolution at 3-20 hr after anaphase, the chromatin bridges induced nuclear envelope rupture in interphase, accumulated the cytoplasmic 3' nuclease TREX1, and developed RPA-coated single stranded (ss) DNA. CRISPR knockouts showed that TREX1 contributed to the generation of the ssDNA and the resolution of the chromatin bridges. Post-crisis clones showed chromothripsis and kataegis, presumably resulting from DNA repair and APOBEC editing of the fragmented chromatin bridge DNA. We propose that chromothripsis in human cancer may arise through TREX1-mediated fragmentation of dicentric chromosomes formed in telomere crisis.

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Crossref · 10.1016/j.cell.2015.11.054

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  • Chromothripsis induced by experimental telomere crisis is often accompanied by kataegis.

    “Chromothripsis induced by experimental telomere crisis is often accompanied by kataegis (FIG. 5c).”
  • Kataegis is found at the breakpoints of chromothriptic rearrangements created by telomere crisis, consistent with APOBEC activity.

    “Consistent with APOBEC activity, kataegis is found at the breakpoints of chromothriptic rearrangements created by telomere crisis3.”
  • Chromothripsis was demonstrated to result from telomere crisis induced by inactivation of TRF2 in p53-deficient and RB-deficient epithelial cells.

    “Consistent with these associations, chromothripsis was demonstrated to be the result of telomere crisis induced by the inactivation of the shelterin subunit TRF2 in p53-deficient and RB-deficient epithelial cells3.”
  • Live-cell imaging showed that dicentric chromosomes formed during telomere crisis do not break during mitosis.

    “This study used live-cell imaging to determine the fate of dicentric chromosomes formed during telomere crisis and showed that dicentric chromosomes do not break during mitosis.”
  • The repertoire of genomic alterations attributable to telomere crisis is more extensive and includes whole-genome reduplication, chromothripsis, and kataegis.

    “However, it has recently become clear that the repertoire of genomic alterations that can be ascribed to telomere crisis is more extensive and includes whole-genome reduplication, chromothripsis and kataegis3,8,9.”

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Authors
Maciejowski, J., Li, Y., Bosco, N., Campbell, P. J., & de Lange, T.
Affiliations
  • Rockefeller University (US)
  • Wellcome Sanger Institute (GB)
Corresponding author
Campbell, Peter J.
Venue
Cell
Publisher
Elsevier BV
Published
2015-12
Volume
163
Issue
7
Pages
1641-1654
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2197269124
Cited by
675
References
67
Citations by year
2026: 39 · 2025: 47 · 2024: 61 · 2023: 57 · 2022: 60 · 2021: 98 · 2020: 82 · 2019: 58 · 2018: 67 · 2017: 56 · 2016: 45 · 2015: 4
FWCI
41.81
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Cancer Society
  • Breast Cancer Research Foundation
  • Jane Coffin Childs Memorial Fund for Medical Research
  • Memorial Sloan-Kettering Cancer Center
  • Wellcome Trust (077012/Z/05/Z, 103858, WT088340MA)
  • National Institutes of Health
  • National Cancer Institute (R01CA181090, P30CA008748)
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 › Cell Biology › Microtubule and mitosis dynamics
Keywords
chromothripsis, kataegis, telomere crisis, dicentric chromosomes, chromatin bridges, TREX1, APOBEC mutagenesis, single-stranded DNA, genomic instability, telomere fusion, DNA repair, nuclear envelope rupture
MeSH terms
Chromosome Aberrations, Chromosomes, Human, DNA, Single-Stranded, Exodeoxyribonucleases, Humans, Mitosis, Neoplasms, Nuclear Envelope, Phosphoproteins, Telomere, Genomic Instability, Chromosomal Instability, Cytokinesis

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