Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

BACKGROUND: Two recent genome-wide association studies (GWAS) of pancreatic ductal adenocarcinoma (PDAC), conducted, respectively, in a Japanese and in a Chinese population, identified eight novel loci affecting PDAC risk. METHODS: We attempted to replicate the novel loci in a series of PDACs and healthy controls of European ancestry in the context of the newly formed PANcreatic Disease ReseArch (PANDoRA) consortium. We genotyped seven single-nucleotide polymorphisms (SNP): rs12413624, rs1547374, rs372883, rs5768709, rs6464375, rs708224, rs9502893 (one SNP identified in the Chinese GWAS is not polymorphic in Caucasians) in 1,299 PDAC cases and 2,884 controls. We also attempted stratified analysis considering the different stages of the disease and addressed the possible involvement of the selected SNPs on the survival of patients. RESULTS: None of the SNPs were significantly associated with PDAC risk if considering the overall population of the consortium. When stratifying for country of origin, we found that in the Polish subgroup, the G allele of rs372883 was statistically significantly associated with increased risk [OR, 6.40; 95% confidence interval (CI), 2.28-17.91]. However, the sample size of the subgroups was rather small; therefore, this result can be due to chance. None of the SNPs was associated with disease progression or survival. CONCLUSIONS: None of the SNPs associated with PDAC risk in two Asian populations were convincingly associated with PDAC risk in individuals of European descent. IMPACT: This study illustrates the importance of evaluation of PDAC risk markers across ethnic groups.

Original publication

DOI

10.1158/1055-9965.EPI-12-1182

Type

Journal article

Journal

Cancer Epidemiol Biomarkers Prev

Publication Date

02/2013

Volume

22

Pages

320 - 323

Keywords

Adenocarcinoma, Adult, Aged, Asia, Biomarkers, Tumor, Carcinoma, Pancreatic Ductal, Case-Control Studies, Europe, Female, Follow-Up Studies, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Male, Middle Aged, Pancreatic Neoplasms, Polymorphism, Single Nucleotide, Prognosis, Risk Factors, Survival Rate