Cited by 242Telomeres, Telomerase, and SenescenceMicrotubule and mitosis dynamicsCancer-related Molecular Pathways

Telomere-Driven Tetraploidization Occurs in Human Cells Undergoing Crisis and Promotes Transformation of Mouse Cells

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Davoli, Teresa, de Lange, Titia·2012·Cancer Cell

Abstract

Human cancers with a subtetraploid karyotype are thought to originate from tetraploid precursors, but the cause of tetraploidization is unknown. We previously documented endoreduplication in mouse cells with persistent telomere dysfunction or genome-wide DNA damage. We now report that endoreduplication and mitotic failure occur during telomere crisis in human fibroblasts and mammary epithelial cells and document the role of p53 and Rb in repressing tetraploidization. Using an inducible system to generate transient telomere damage, we show that telomere-driven tetraploidization enhances the tumorigenic transformation of mouse cells. Similar to human solid cancers, the resulting tumors evolved subtetraploid karyotypes. These data establish that telomere-driven tetraploidization is induced by critically short telomeres and has the potential to promote tumorigenesis in early cancerous lesions.

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Crossref · 10.1016/j.ccr.2012.03.044

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  • Loss of telomere function at a few chromosome ends is sufficient to induce replicative arrest.

    “Loss of telomere function at a few chromosome ends in a cell is sufficient to induce replicative arrest9,39,40 (FIG. 2b).”
  • Telomere crisis can induce tetraploidization.

    “Finally, telomere crisis can induce tetraploidization (doubling the set of chromosomes)8,9, which is inferred to be a frequent event during the development of human cancers125.”
  • 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.”
  • Tetraploidization can be induced in cells lacking p53 and RB pathways that have a high load of dysfunctional telomeres.

    “Tetraploidization can be induced in cells that lack the p53 and RB pathways, which have a high load of dysfunctional telomeres8,9 (FIG. 6).”
  • Tetraploidization triggered by permanently damaged telomeres promotes tumorigenic transformation of mouse cells.

    “Subsequent work by the same team has shown that tetraploidization triggered by permanently damaged telomeres promotes tumorigenic transformation of mouse cells. 92”

    From Senescence from G2 arrest, revisited (2015) · cites this paper as [92]

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Authors
Davoli, T., & de Lange, T.
Affiliations
Rockefeller University (US)
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2012-06
Volume
21
Issue
6
Pages
765-776
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2121212012
Cited by
242
References
50
Citations by year
2026: 10 · 2025: 7 · 2024: 12 · 2023: 17 · 2022: 8 · 2021: 27 · 2020: 20 · 2019: 16 · 2018: 28 · 2017: 17 · 2016: 19 · 2015: 18 · 2014: 17 · 2013: 14 · 2012: 12
FWCI
13.07
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • American Cancer Society
  • Breast Cancer Research Foundation
  • National Institutes of Health (CA160924)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Microtubule and mitosis dynamics
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
tetraploidization, telomere crisis, endoreduplication, mitotic failure, p53, Rb, telomere dysfunction, carcinogenesis, fibroblasts, mammary epithelial cells
MeSH terms
Animals, Cell Line, Cell Transformation, Neoplastic, Cells, Cultured, DNA Damage, Epithelial Cells, Fibroblasts, Flow Cytometry, Humans, Mitosis, Time Factors, Immunoblotting, Tumor Suppressor Protein p53, Retinoblastoma Protein, Telomere, In Situ Hybridization, Fluorescence, RNA Interference, Mammary Glands, Human, Mice, Tetraploidy, Cell Cycle Checkpoints, Karyotype

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