期刊
ONCOGENE
卷 40, 期 25, 页码 4263-4270出版社
SPRINGERNATURE
DOI: 10.1038/s41388-021-01856-9
关键词
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资金
- NCI [CA222092, CA097096]
- DOD [W81XWH-18-1-004]
- Intramural Research Program of the NIH
Translocations occur when end of one chromosome break is joined to a different chromosome break, potentially leading to disease and cancer. Understanding the mechanisms and cellular responses to chromosome breaks is crucial in preventing translocations. The location of breaks plays a significant role in translocation potential.
Translocations arise when an end of one chromosome break is mistakenly joined to an end from a different chromosome break. Since translocations can lead to developmental disease and cancer, it is important to understand the mechanisms leading to these chromosome rearrangements. We review how characteristics of the sources and the cellular responses to chromosome breaks contribute to the accumulation of multiple chromosome breaks at the same moment in time. We also discuss the important role for chromosome break location; how translocation potential is impacted by the location of chromosome breaks both within chromatin and within the nucleus, as well as the effect of altered mobility of chromosome breaks. A common theme in work addressing both temporal and spatial contributions to translocation is that there is no shortage of examples of factors that promote translocation in one context, but have no impact or the opposite impact in another. Accordingly, a clear message for future work on translocation mechanism is that unlike normal DNA metabolic pathways, it isn't easily modeled as a simple, linear pathway that is uniformly followed regardless of differing cellular contexts.
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