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We have conducted a three-stage, comprehensive single nucleotide polymorphism (SNP)-tagging association study of ESR1 gene variants (SNPs) in more than 55,000 breast cancer cases and controls from studies within the Breast Cancer Association Consortium (BCAC). No large risks or highly significant associations were revealed. SNP rs3020314, tagging a region of ESR1 intron 4, is associated with an increase in breast cancer susceptibility with a dominant mode of action in European populations. Carriers of the c-allele have an odds ratio (OR) of 1.05 [95% Confidence Intervals (CI) 1.02-1.09] relative to t-allele homozygotes, P = 0.004. There is significant heterogeneity between studies, P = 0.002. The increased risk appears largely confined to oestrogen receptor-positive tumour risk. The region tagged by SNP rs3020314 contains sequence that is more highly conserved across mammalian species than the rest of intron 4, and it may subtly alter the ratio of two mRNA splice forms.

Original publication

DOI

10.1093/hmg/ddn429

Type

Journal article

Journal

Human molecular genetics

Publication Date

03/2009

Volume

18

Pages

1131 - 1139

Addresses

Department of Oncology, University of Cambridge, Cambridge, UK. alisond@srl.cam.ac.uk

Keywords

SEARCH, EPIC, MEC, ABCS, ABCFS, BBCC, BBCS, CGPS, CNIO-BCS, GENICA, GC-HBOC, HABCS, HEBCS, KARBAC, KBCS, kConFab and the AOCS Management Group, MARIE, for MCBCS, MCCS, NBCS, NHS, ORIGO, PBCS, SASBAC, SEBCS, TWBCS, UCIBCS, USRTS, BCAC, Humans, Breast Neoplasms, Genetic Predisposition to Disease, Estrogen Receptor alpha, RNA, Neoplasm, Neoplasm Staging, Haplotypes, Polymorphism, Single Nucleotide, Female