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Analyses of non-coding somatic drivers in 2,658 cancer whole genomes.

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Peer-reviewed

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Article

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Authors

Rheinbay, Esther 
Nielsen, Morten Muhlig 
Abascal, Federico 
Wala, Jeremiah A 
Shapira, Ofer 

Abstract

The discovery of drivers of cancer has traditionally focused on protein-coding genes1-4. Here we present analyses of driver point mutations and structural variants in non-coding regions across 2,658 genomes from the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium5 of the International Cancer Genome Consortium (ICGC) and The Cancer Genome Atlas (TCGA). For point mutations, we developed a statistically rigorous strategy for combining significance levels from multiple methods of driver discovery that overcomes the limitations of individual methods. For structural variants, we present two methods of driver discovery, and identify regions that are significantly affected by recurrent breakpoints and recurrent somatic juxtapositions. Our analyses confirm previously reported drivers6,7, raise doubts about others and identify novel candidates, including point mutations in the 5' region of TP53, in the 3' untranslated regions of NFKBIZ and TOB1, focal deletions in BRD4 and rearrangements in the loci of AKR1C genes. We show that although point mutations and structural variants that drive cancer are less frequent in non-coding genes and regulatory sequences than in protein-coding genes, additional examples of these drivers will be found as more cancer genomes become available.

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Journal Title

Nature

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Journal ISSN

0028-0836

Volume Title

578

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Sponsorship
NHGRI NIH HHS (R01 HG007069)
NCI NIH HHS (R01 CA188228, U24 CA210999, R01 CA215489, U54 CA143798, U24 CA143845, U24 CA211000)
Cancer Research UK (29076, 23526)
NIGMS NIH HHS (R35 GM127029)