Defining the molecular pathology of pancreatic body and tail adenocarcinoma. BJS 2018; 105: e183-e191.
Published: 17th January 2018
Authors: S. B. Dreyer, N. B. Jamieson, R. Upstill‐Goddard, P. J. Bailey, C. J. McKay, A. V. Biankin et al.
Pancreatic ductal adenocarcinoma (PDAC) remains a dismal disease, with very little improvement in survival over the past 50 years. Recent large‐scale genomic studies have improved understanding of the genomic and transcriptomic landscape of the disease, yet very little is known about molecular heterogeneity according to tumour location in the pancreas; body and tail PDACs especially tend to have a significantly worse prognosis. The aim was to investigate the molecular differences between PDAC of the head and those of the body and tail of the pancreas.
Detailed correlative analysis of clinicopathological variables, including tumour location, genomic and transcriptomic data, was performed using the Australian Pancreatic Cancer Genome Initiative (APGI) cohort, part of the International Cancer Genome Consortium study.
Clinicopathological data were available for 518 patients recruited to the APGI, of whom 421 underwent genomic analyses; 179 of these patients underwent whole‐genome and 96 RNA sequencing. Patients with tumours of the body and tail had significantly worse survival than those with pancreatic head tumours (12·1
PDACs of the body and tail demonstrate aggressive tumour biology that may explain worse clinical outcomes.Full text
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