Discovery and characterization of coding and non-coding driver mutations in more than 2,500 whole cancer genomes

Author:

Rheinbay EstherORCID,Nielsen Morten MuhligORCID,Abascal Federico,Tiao GraceORCID,Hornshøj Henrik,Hess Julian M.ORCID,Pedersen Randi IstrupORCID,Feuerbach LarsORCID,Sabarinathan RadhakrishnanORCID,Madsen TobiasORCID,Kim JaegilORCID,Mularoni LorisORCID,Shuai ShiminORCID,Lanzós AndrésORCID,Herrmann CarlORCID,Maruvka Yosef E.,Shen Ciyue,Amin Samirkumar B.ORCID,Bertl JohannaORCID,Dhingra PriyankaORCID,Diamanti KlevORCID,Gonzalez-Perez AbelORCID,Guo QianyunORCID,Haradhvala Nicholas J.ORCID,Isaev Keren,Juul MaleneORCID,Komorowski JanORCID,Kumar SushantORCID,Lee DonghoonORCID,Lochovsky LucasORCID,Liu Eric MinweiORCID,Pich OriolORCID,Tamborero DavidORCID,Umer Husen M.ORCID,Uusküla-Reimand Liis,Wadelius ClaesORCID,Wadi Lina,Zhang JingORCID,Boroevich Keith A.ORCID,Carlevaro-Fita JoanaORCID,Chakravarty Dimple,Chan Calvin W.Y.ORCID,Fonseca Nuno A.,Hamilton Mark P.,Hong Chen,Kahles AndreORCID,Kim Youngwook,Lehmann Kjong-VanORCID,Johnson Todd A.ORCID,Kahraman AbdullahORCID,Park Keunchil,Saksena GordonORCID,Sieverling LinaORCID,Sinnott-Armstrong Nicholas A.ORCID,Campbell Peter J.,Hobolth AsgerORCID,Kellis ManolisORCID,Lawrence Michael S.,Raphael BenORCID,Rubin Mark A.ORCID,Sander Chris,Stein LincolnORCID,Stuart Josh,Tsunoda TatsuhikoORCID,Wheeler David A.ORCID,Johnson RoryORCID,Reimand Jüri,Gerstein Mark B.ORCID,Khurana EktaORCID,López-Bigas NúriaORCID,Martincorena IñigoORCID,Pedersen Jakob SkouORCID,Getz GadORCID

Abstract

AbstractDiscovery of cancer drivers has traditionally focused on the identification of protein-coding genes. Here we present a comprehensive analysis of putative cancer driver mutations in both protein-coding and non-coding genomic regions across >2,500 whole cancer genomes from the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium. We developed a statistically rigorous strategy for combining significance levels from multiple driver discovery methods and demonstrate that the integrated results overcome limitations of individual methods. We combined this strategy with careful filtering and applied it to protein-coding genes, promoters, untranslated regions (UTRs), distal enhancers and non-coding RNAs. These analyses redefine the landscape of non-coding driver mutations in cancer genomes, confirming a few previously reported elements and raising doubts about others, while identifying novel candidate elements across 27 cancer types. Novel recurrent events were found in the promoters or 5’UTRs ofTP53, RFTN1, RNF34,andMTG2,in the 3’UTRs ofNFKBIZandTOB1,and in the non-coding RNARMRP.We provide evidence that the previously reported non-coding RNAsNEAT1andMALAT1may be subject to a localized mutational process. Perhaps the most striking finding is the relative paucity of point mutations driving cancer in non-coding genes and regulatory elements. Though we have limited power to discover infrequent non-coding drivers in individual cohorts, combined analysis of promoters of known cancer genes show little excess of mutations beyondTERT.

Publisher

Cold Spring Harbor Laboratory

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