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Refinement of the basis and impact of common 11q23.1 variation to the risk of developing colorectal cancer

Pittman,A.M. ; Webb,E. ; Carvajal-Carmona,L. ; [et al.]

Human Molecular Genetics 17 (23), 3720-3727

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Keywords: CANCER ; EXPRESSION ; COMBINATION ; DISEASE ; RISK ; GENE ; GENE-EXPRESSION ; IMPACT ; BIOLOGY ; MOLECULAR-BIOLOGY ; ASSOCIATION ; polymorphism ; single nucleotide polymorphism ; VARIANTS ; gene expression ; NUMBER ; MUTATION ; genetics ; SNP ; colorectal cancer ; COLORECTAL-CANCER ; REGION ; MUTATIONS ; INDIVIDUALS ; SERIES ; HEALTHY ; heredity ; molecular biology ; molecular ; RE ; VARIANT ; INCREASE ; METAANALYSIS ; ALLELES ; LOCUS ; single-nucleotide polymorphism ; ENGLAND ; 8Q24 ; INCREASES ; GENOME-WIDE ASSOCIATION ; association study ; SCAN ; GENOME-WIDE

Abstract: The common single-nucleotide polymorphism (SNP) rs3802842 at 11q23.1 has recently been reported to be associated with risk of colorectal cancer (CRC). To examine this association in detail we genotyped rs3802842 in eight independent case-control series comprising a total of 10 638 cases and 10 457 healthy individuals. A significant association between the C allele of rs3802842 and CRC risk was found (per allele OR = 1.17; 95% confidence interval [CI]: 1.12-1.22; P = 1.08 x 10(-12)) with the risk allele more frequent in rectal than colonic disease (P = 0.02). In combination with 8q21, 8q24, 10p14, 11q, 15q13.3 and 18q21 variants, the risk of CRC increases with an increasing numbers of variant alleles for the six loci (ORper allele = 1.19; 95% CI: 1.15-1.23; P-trend = 7.4 x 10(-24)). Using the data from our genome-wide association study of CRC, LD mapping and imputation, we were able to refine the location of the causal locus to a 60 kb region and screened for coding changes. The absence of exonic mutations in any of the transcripts (FLJ45803, LOC120376, C11orf53 and POU2AF1) mapping to this region makes the association likely to be a consequence of non-coding effects on gene expression

Type of Publication: Journal article published

PubMed ID: 18753146

Deep Link: http://www.dkfz.de/cgi-bin/sel?http://www.dkfz.de/PublicationManager/Show/ShowJournal.aspx%3fpublishedId=6777

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A genome-wide association study identifies colorectal cancer susceptibility loci on chromosomes 10p14 and 8q23.3

Tomlinson,I.P.M. ; Webb,E. ; Carvajal-Carmona,L. ; [et al.]

Nature Genetics 40 (5), 623-630

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Keywords: CANCER ; tumor ; MODEL ; NEW-YORK ; RISK ; GENE ; GENES ; TUMORS ; ASSOCIATION ; SUSCEPTIBILITY ; BREAST-CANCER ; genetics ; colorectal cancer ; COLORECTAL-CANCER ; PROSTATE-CANCER ; genotyping ; HIGH-RISK ; REPLICATION ; heredity ; RE ; VARIANT ; SNPs ; METAANALYSIS ; ALLELES ; analysis ; PHASE ; USA ; ENGLAND ; GENOME-WIDE ASSOCIATION ; SCAN ; EIF3S3

Abstract: To identify colorectal cancer (CRC) susceptibility alleles, we conducted a genome-wide association study. In phase 1, we genotyped 550,163 tagSNPs in 940 familial colorectal tumor cases (627 CRC, 313 high-risk adenoma) and 965 controls. In phase 2, we genotyped 42,708 selected SNPs in 2,873 CRC cases and 2,871 controls. In phase 3, we evaluated 11 SNPs showing association at P 〈 10(-4) in a joint analysis of phases 1 and 2 in 4,287 CRC cases and 3,743 controls. Two SNPs were taken forward to phase 4 genotyping ( 10,731 CRC cases and 10,961 controls from eight centers). In addition to the previously reported 8q24, 15q13 and 18q21 CRC risk loci, we identified two previously unreported associations: rs10795668, located at 10p14 (P=2.5 x 10(-13) overall; P=6.9 x 10(-12) replication), and rs16892766, at 8q23.3 (P=3.3 x 10(-18) overall; P=9.6 x 10(-17) replication), which tags a plausible causative gene, EIF3H. These data provide further evidence for the 'common-disease common-variant' model of CRC predisposition

Type of Publication: Journal article published

PubMed ID: 18372905

Deep Link: http://www.dkfz.de/cgi-bin/sel?http://www.dkfz.de/PublicationManager/Show/ShowJournal.aspx%3fpublishedId=7178

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