Chromothripsis pp 209-230 | Cite as

Study of Telomere Dysfunction in TP53 Mutant LoVo Cell Lines as a Model for Genomic Instability

  • Oumar Samassekou
  • Nathalie Bastien
  • Ju Yan
  • Sabine Mai
  • Régen Drouin
Part of the Methods in Molecular Biology book series (MIMB, volume 1769)


Telomere restriction fragment, 3D quantitative FISH on nuclei, and quantitative FISH on metaphases are complementary approaches that explore telomere dysfunction genomically, cellularly, and chromosomally, respectively. We used these approaches to study association between telomere dysfunction and degree of genomic instability related to TP53 mutations in LoVo isogenic cell lines. We found a strong correlation between degree of genomic instability, telomere dysfunction, and specific mutations of TP53. The use of complementary approaches to study telomere biology is essential to have a comprehensive understanding of telomere involvement in genomic instability.

Key words

Telomere Genomic instability Telomere restriction fragment 3D telomere quantitative FISH MFISH Telomere aggregates Telomere length 


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Oumar Samassekou
    • 1
  • Nathalie Bastien
    • 2
  • Ju Yan
    • 3
  • Sabine Mai
    • 4
  • Régen Drouin
    • 5
  1. 1.3D Signatures Holdings Inc. MaRS Centre, South TowerTorontoCanada
  2. 2.Laboratoire d’Anatomopathologie et de Cytologie, Laboratoires médicaux de la Capitale Nationale et des Îles, site IUCPQ-UL, 2725 Chemin Sainte-FoyQuébecCanada
  3. 3.Cytogenetics and Molecular Cytogenetics laboratoryBeijing Boren HospitalBeijingChina
  4. 4.Department of Physiology and Pathophysiology, Cell BiologyUniversity of Manitoba, Research Institute of Oncology and Hematology, CancerCare ManitobaWinnipegCanada
  5. 5.Division of Medical Genetics, Department of PediatricsLaval University and Centre Hospitalier Universitaire de QuébecQuebec CityCanada

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