DNA double strand breaks (DSB) and non-homologous end joining (NHEJ) pathways in human leukemia

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70 Citations (Scopus)


DNA double strand breaks (DSB) are considered the most lethal form of DNA damage for eukaryotic cells. DSB can either be properly, repaired, restoring genomic integrity, or misrepaired resulting in drastic consequences, such as cell death, genomic instability, and cancer. It is well established that exposure to DSB-inducing agents is associated with chromosomal abnormalities and leukemogenesis. The non-homologous end joining (NHEJ) pathway is considered a major route for the repair,DSB in mammalian cells. Although the mechanism(s) by which repair of DSB lead to leukemia are poorly understood, recent evidence is beginning to emerge that a poorly defined and error-prone branch of the NHEJ pathway plays a pivotal role in this process. This review discusses some of the ways in which error-prone NHEJ repair may be involved in the development of genomic instability and leukemia. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1 - 9
Number of pages9
JournalCancer Letters
Issue number1
Publication statusPublished - 10 Apr 2003


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