Cited by 517DNA Repair MechanismsGenomic variations and chromosomal abnormalitiesGenome Rearrangement Algorithms

Frequent chromosomal translocations induced by DNA double-strand breaks

Richardson, Christine, Jasin, Maria·2000·Nature

Abstract

The faithful repair of DNA damage such as chromosomal double-strand breaks (DSBs) is crucial for genomic integrity. Aberrant repair of these lesions can result in chromosomal rearrangements, including translocations, which are associated with numerous tumours. Models predict that some translocations arise from DSB-induced recombination in differentiating lymphoid cell types or from aberrant repair of DNA damage induced by irradiation or other agents; however, a genetic system to study the aetiology of these events has been lacking. Here we use a mouse embryonic stem cell system to examine the role of DNA damage on the formation of translocations. We find that two DSBs, each on different chromosomes, are sufficient to promote frequent reciprocal translocations. The results are in striking contrast with interchromosomal repair of a single DSB in an analogous system in which translocations are not recovered. Thus, while interchromosomal DNA repair does not result in genome instability per se, the presence of two DSBs in a single cell can alter the spectrum of repair products that are recovered.

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Crossref · 10.1038/35015097

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Authors
Richardson, C., & Jasin, M.
Affiliations
Memorial Sloan Kettering Cancer Center (US)
Corresponding author
Jasin, Maria
Venue
Nature
Published
2000-06
Volume
405
Issue
6787
Pages
697-700
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1509538618
Cited by
517
References
32
Citations by year
2026: 5 · 2025: 12 · 2024: 7 · 2023: 8 · 2022: 11 · 2021: 15 · 2020: 19 · 2019: 13 · 2018: 17 · 2017: 16 · 2016: 25 · 2015: 18 · 2014: 18 · 2013: 18 · 2012: 19
FWCI
9.41
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Science Foundation
  • Leukemia and Lymphoma Society
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
Keywords
chromosomal translocation, DNA double-strand breaks, DNA repair, reciprocal translocation, genomic instability, mouse embryonic stem cells, lymphoid differentiation, tumour aetiology, recombination
MeSH terms
Animals, Cell Line, DNA, DNA Damage, DNA Repair, Gene Conversion, Recombination, Genetic, Stem Cells, Translocation, Genetic, Blotting, Southern, Polymerase Chain Reaction, Kanamycin Kinase, Mice

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