The effects of mutational processes and selection on driver mutations across cancer types

Daniel Temko (), Ian P. M. Tomlinson, Simone Severini, Benjamin Schuster-Böckler () and Trevor A. Graham ()
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Daniel Temko: Queen Mary University of London, Charterhouse Sq
Ian P. M. Tomlinson: University of Birmingham
Simone Severini: University College London
Benjamin Schuster-Böckler: University of Oxford
Trevor A. Graham: Queen Mary University of London, Charterhouse Sq

Nature Communications, 2018, vol. 9, issue 1, 1-10

Abstract: Abstract Epidemiological evidence has long associated environmental mutagens with increased cancer risk. However, links between specific mutation-causing processes and the acquisition of individual driver mutations have remained obscure. Here we have used public cancer sequencing data from 11,336 cancers of various types to infer the independent effects of mutation and selection on the set of driver mutations in a cancer type. First, we detect associations between a range of mutational processes, including those linked to smoking, ageing, APOBEC and DNA mismatch repair (MMR) and the presence of key driver mutations across cancer types. Second, we quantify differential selection between well-known alternative driver mutations, including differences in selection between distinct mutant residues in the same gene. These results show that while mutational processes have a large role in determining which driver mutations are present in a cancer, the role of selection frequently dominates.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04208-6

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DOI: 10.1038/s41467-018-04208-6

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