Integrated Genomic Characterization of Pancreatic Ductal Adenocarcinoma

By Benjamin J. Raphael, R. Hruban, A. Aguirre, R. Moffitt, J. Yeh, Chip Stewart, A. G. Robertson, A. Cherniack, M. Gupta, Gad Getz and 256 more. Cancer Cell, 2017

1,688 citations recorded by the source corpus.

SUMMARY We performed integrated genomic, transcriptomic and proteomic profiling of 150 pancreatic ductal adenocarcinoma (PDAC) specimens, including samples with characteristic low neoplastic cellularity. Deep whole-exome sequencing revealed recurrent somatic mutations in KRAS, TP53, CDKN2A, SMAD4, RNF43, ARID1A, TGFβR2, GNAS, RREB1 and PBRM1. KRAS wild-type tumors harbored alterations in other oncogenic drivers, including GNAS, BRAF, CTNNB1 and additional RAS pathway genes. A subset of tumors harbored multiple KRAS mutations, with some showing evidence of biallelic mutations. Protein profiling identified a favorable prognosis subset with low epithelial-mesenchymal transition and high MTOR pathway scores. Associations of non-coding RNAs with tumor-specific mRNA subtypes were also identified. Our integrated multi-platform analysis reveals a complex molecular landscape of PDAC and provides a roadmap for precision medicine.

Subfields: Cancer Research, Oncology, Surgery

View Paper: https://www.semanticscholar.org/paper/2c4bbc1636a7915bb47677368ab580dc324f7812

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