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. Squamous tumours are enriched for TP53 and KDM6A mutations, upregulation of the TP63ΔN 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.
| Lingua originale | Inglese |
|---|---|
| pagine (da-a) | 47-52 |
| Numero di pagine | 6 |
| Rivista | Nature |
| Volume | 531 |
| Numero di pubblicazione | 7592 |
| DOI | |
| Stato di pubblicazione | Pubblicato - 2016 |
All Science Journal Classification (ASJC) codes
- Multidisciplinare
Keywords
- Animals
- Basic Helix-Loop-Helix Transcription Factors
- Carcinoma
- Cell Line
- Cytoplasmic and Nuclear
- DNA Methylation
- DNA-Binding Proteins
- Gene Expression Regulation
- Gene Regulatory Networks
- Genes
- Genetic
- Genome
- Genomics
- Hepatocyte Nuclear Factor 3-beta
- Hepatocyte Nuclear Factor 3-gamma
- Histone Demethylases
- Homeodomain Proteins
- Human
- Humans
- Mice
- Mutation
- Neoplasm
- Neoplastic
- Nuclear Proteins
- Pancreatic Ductal
- Pancreatic Neoplasms
- Prognosis
- Receptors
- Survival Analysis
- Trans-Activators
- Transcription
- Transcription Factors
- Transcriptome
- Tumor
- Tumor Suppressor Protein p53
- Tumor Suppressor Proteins
- Zebrafish Proteins