Recurrent noncoding regulatory mutations in pancreatic ductal adenocarcinoma.

ABSTRACT: The contributions of coding mutations to tumorigenesis are relatively well known; however, little is known about somatic alterations in noncoding DNA. Here we describe GECCO (Genomic Enrichment Computational Clustering Operation) to analyze somatic noncoding alterations in 308 pancreatic ductal adenocarcinomas (PDAs) and identify commonly mutated regulatory regions. We find recurrent noncoding mutations to be enriched in PDA pathways, including axon guidance and cell adhesion, and newly identified processes, including transcription and homeobox genes. We identified mutations in protein binding sites correlating with differential expression of proximal genes and experimentally validated effects of mutations on expression. We developed an expression modulation score that quantifies the stren

SUBMITTER: Feigin ME 

PROVIDER: S-EPMC5659388 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature