Genomic Studies Reveal New Aspects of the Biology of DNA Damaging Agents

Gillingham, Dennis and Sauter, Basilius. (2017) Genomic Studies Reveal New Aspects of the Biology of DNA Damaging Agents. ChemBioChem, 18 (24). pp. 2368-2375.

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Official URL: http://edoc.unibas.ch/58665/

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A flurry of papers has appeared recently to force a rethinking of our understanding of how chemicals, light, and metal complexes damage our genomes. Conventional wisdom was that damaging agents were indiscriminate and it was statistical bad luck, coupled with evolutionary selection, that drove mutational signatures after exposure of DNA to damaging agents. Recent data, however, suggests that primary DNA damage itself does not drive mutational signatures; instead, it is the selectivity of repair pathways on different regions of the genome that is decisive. In particular, genomic regions shielded by transcription factors or packed densely in nucleosomes are poorly repaired by nucleotide excision repair and are far more susceptible to mutation. There are plenty of approved therapies, the mode-of-action of which is to alkylate DNA, and although historically efforts have been focused on understanding how chemicals modify DNA, these new findings suggest that focus should be shifted to understanding genome-wide repair specificities when different types of alkylation damage occur.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Organische Chemie (Gillingham)
UniBasel Contributors:Gillingham, Dennis and Sauter, Basilius
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Jan 2018 11:35
Deposited On:10 Jan 2018 11:35

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