Genomic analyses identify molecular subtypes of pancreatic cancer
- PMID: 26909576
 - DOI: 10.1038/nature16965 (VSports手机版)
 
Genomic analyses identify molecular subtypes of pancreatic cancer
Abstract
Integrated genomic analysis of 456 pancreatic ductal adenocarcinomas identified 32 recurrently mutated genes that aggregate into 10 pathways: KRAS, TGF-β, WNT, NOTCH, ROBO/SLIT signalling, G1/S transition, SWI-SNF, chromatin modification, DNA repair and RNA processing. Expression analysis defined 4 subtypes: (1) squamous; (2) pancreatic progenitor; (3) immunogenic; and (4) aberrantly differentiated endocrine exocrine (ADEX) that correlate with histopathological characteristics VSports手机版. Squamous tumours are enriched for TP53 and KDM6A mutations, upregulation of the TP63∆N transcriptional network, hypermethylation of pancreatic endodermal cell-fate determining genes and have a poor prognosis. Pancreatic progenitor tumours preferentially express genes involved in early pancreatic development (FOXA2/3, PDX1 and MNX1). ADEX tumours displayed upregulation of genes that regulate networks involved in KRAS activation, exocrine (NR5A2 and RBPJL), and endocrine differentiation (NEUROD1 and NKX2-2). Immunogenic tumours contained upregulated immune networks including pathways involved in acquired immune suppression. These data infer differences in the molecular evolution of pancreatic cancer subtypes and identify opportunities for therapeutic development. .
"VSports app下载" Comment in
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  Pancreatic cancer: A problem quartered--new subtypes, new solutions?Nat Rev Clin Oncol. 2016 Apr;13(4):201. doi: 10.1038/nrclinonc.2016.39. Epub 2016 Mar 15. Nat Rev Clin Oncol. 2016. PMID: 26977785 No abstract available.
 
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