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Updated: Apr 20, 2026

Characterizing DNA Repair Processes at Transient and Long-lasting Double-strand DNA Breaks by Immunofluorescence Microscopy
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Dynamics of double strand breaks and chromosomal translocations

Olga V Iarovaia, Mikhail Rubtsov, Elena Ioudinkova

  • 1UMR8126, Université Paris-Sud, CNRS, Institut de cancérologie Gustave Roussy, Villejuif 94805, France. vassetzky@igr.fr.

Molecular Cancer
|November 19, 2014
PubMed

Insights

Chromosomal translocations driving cancer are poorly understood. This review explores how DNA double-strand breaks (DSBs) form, move, and repair, highlighting the crucial role of nuclear organization in translocation development.

Area of Science:

  • Genetics
  • Molecular Biology
  • Cancer Research

Background:

  • Chromosomal translocations are significant drivers of cancer development.
  • The precise mechanisms underlying specific translocation formation remain largely unknown.
  • DNA double-strand breaks (DSBs) are key initiators of translocations.

Purpose of the Study:

  • To review recent findings on the generation, mobility, and repair of DNA double-strand breaks (DSBs).
  • To emphasize the role of nuclear organization in the process of chromosomal translocation formation.
  • To elucidate the mechanisms leading to cancer-associated translocations.

Main Methods:

  • Literature review of recent data on DNA double-strand break (DSB) mechanisms.
  • Analysis of factors influencing DSB generation, mobility, and repair.
  • Examination of the impact of nuclear organization on translocation events.

Main Results:

  • DSB generation, mobility, and repair are complex processes.
  • Nuclear organization significantly influences the likelihood and specificity of DSB repair outcomes.
  • Understanding these mechanisms is crucial for cancer research.

Conclusions:

  • The intricate interplay between DSB dynamics and nuclear architecture dictates translocation formation.
  • Further research into these mechanisms could reveal novel therapeutic targets for cancer.
  • Elucidating translocation origins is vital for advancing cancer genetics.

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