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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Publication Detail

Title: A novel colorectal cancer risk locus at 4q32.2 identified from an international genome-wide association study.

Authors: Schmit, Stephanie L; Schumacher, Fredrick R; Edlund, Christopher K; Conti, David V; Raskin, Leon; Lejbkowicz, Flavio; Pinchev, Mila; Rennert, Hedy S; Jenkins, Mark A; Hopper, John L; Buchanan, Daniel D; Lindor, Noralane M; Le Marchand, Loic; Gallinger, Steven; Haile, Robert W; Newcomb, Polly A; Huang, Shu-Chen; Rennert, Gad; Casey, Graham; Gruber, Stephen B

Published In Carcinogenesis, (2014 Nov)

Abstract: Only a fraction of colorectal cancer heritability is explained by known risk-conferring genetic variation. This study was designed to identify novel risk alleles in Europeans. We conducted a genome-wide association study (GWAS) meta-analysis of colorectal cancer in participants from a population-based case-control study in Israel (n = 1616 cases, 1329 controls) and a consortium study from the Colon Cancer Family Registry (n = 1977 cases, 999 controls). We used a two-stage (discovery-replication) GWAS design, followed by a joint meta-analysis. A combined analysis identified a novel susceptibility locus that reached genome-wide significance on chromosome 4q32.2 [rs35509282, risk allele = A (minor allele frequency = 0.09); odds ratio (OR) per risk allele = 1.53; P value = 8.2 × 10(-9); nearest gene = FSTL5]. The direction of the association was consistent across studies. In addition, we confirmed that 14 of 29 previously identified susceptibility variants were significantly associated with risk of colorectal cancer in this study. Genetic variation on chromosome 4q32.2 is significantly associated with risk of colorectal cancer in Ashkenazi Jews and Europeans in this study.

PubMed ID: 25023989 Exiting the NIEHS site

MeSH Terms: Aged; Aged, 80 and over; Carcinogenesis*; Case-Control Studies; Chromosomes, Human, Pair 4/genetics; Colorectal Neoplasms/genetics*; Colorectal Neoplasms/pathology; Ethnicity; Female; Gene Frequency; Genetic Predisposition to Disease*; Genome-Wide Association Study*; Genotype; Humans; Male; Middle Aged; Polymorphism, Single Nucleotide; Risk Factors

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