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The mutational signature profile of known and suspected human carcinogens in mice
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The mutational signature profile of known and suspected human carcinogens in mice
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Journal Article
The mutational signature profile of known and suspected human carcinogens in mice
2020
Overview
Epidemiological studies have identified many environmental agents that appear to significantly increase cancer risk in human populations. By analyzing tumor genomes from mice chronically exposed to 1 of 20 known or suspected human carcinogens, we reveal that most agents do not generate distinct mutational signatures or increase mutation burden, with most mutations, including driver mutations, resulting from tissue-specific endogenous processes. We identify signatures resulting from exposure to cobalt and vinylidene chloride and link distinct human signatures (SBS19 and SBS42) with 1,2,3-trichloropropane, a haloalkane and pollutant of drinking water, and find these and other signatures in human tumor genomes. We define the cross-species genomic landscape of tumors induced by an important compendium of agents with relevance to human health.
A genomic analysis of tumors in mice caused by known or suspected carcinogens shows that most carcinogens do not generate distinct mutational signatures.
Publisher
Nature Publishing Group US,Nature Publishing Group
Subject
