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REVIEW ARTICLE
Year : 2017  |  Volume : 8  |  Issue : 2  |  Page : 93-97

DNA double-strand break repair in mammals


Department of Biochemistry, n Institute of Science, Bengaluru, Karnataka, India

Correspondence Address:
Sathees C Raghavan
Department of Biochemistry, Indian Institute of Science, Bengaluru, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jrcr.jrcr_18_17

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Failure in repair of DNA double-strand breaks (DSBs) could result in various disorders in mammals including cancer. Among various exogenous agents, radiation is one of the primary causes for induction of DSBs. Homologous recombination, nonhomologous end-joining, and a less efficient microhomology-mediated end-joining are responsible for repair of DSBs to ensure the genomic integrity and stability. This review highlights DNA damage response (DDR) induced following various insults to the genome and how the DNA repair mechanisms have evolved to restore genomic integrity. We also briefly discuss the potential therapeutic targets associated with DDR and DSB repair and novel inhibitors developed against such targets and their well-defined mechanism of action, which may increase sensitivity to traditional radio- and chemo-therapeutic modalities.


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