Genome-wide association study identifies variants in the ABO locus associated with susceptibility to pancreatic cancer
- PMID: 19648918
- PMCID: PMC2839871
- DOI: 10.1038/ng.429
Genome-wide association study identifies variants in the ABO locus associated with susceptibility to pancreatic cancer
Abstract
We conducted a two-stage genome-wide association study of pancreatic cancer, a cancer with one of the lowest survival rates worldwide. We genotyped 558,542 SNPs in 1,896 individuals with pancreatic cancer and 1,939 controls drawn from 12 prospective cohorts plus one hospital-based case-control study. We conducted a combined analysis of these groups plus an additional 2,457 affected individuals and 2,654 controls from eight case-control studies, adjusting for study, sex, ancestry and five principal components. We identified an association between a locus on 9q34 and pancreatic cancer marked by the SNP rs505922 (combined P = 5.37 x 10(-8); multiplicative per-allele odds ratio 1.20; 95% confidence interval 1.12-1.28). This SNP maps to the first intron of the ABO blood group gene. Our results are consistent with earlier epidemiologic evidence suggesting that people with blood group O may have a lower risk of pancreatic cancer than those with groups A or B.
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Comment in
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The prognostic value of ABO blood group in cancer patients.Blood Transfus. 2016 Sep;14(5):434-40. doi: 10.2450/2015.0164-15. Epub 2015 Nov 6. Blood Transfus. 2016. PMID: 26674825 Free PMC article. Review.
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