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Title: A genome-wide association study identifies alleles in FGFR2 associated with risk of sporadic postmenopausal breast cancer.
Authors: Hunter DJ,  Kraft P,  Jacobs KB,  Cox DG,  Yeager M,  Hankinson SE,  Wacholder S,  Wang Z,  Welch R,  Hutchinson A,  Wang J,  Yu K,  Chatterjee N,  Orr N,  Willett WC,  Colditz GA,  Ziegler RG,  Berg CD,  Buys SS,  McCarty CA,  Feigelson HS,  Calle EE,  Thun MJ,  Hayes RB,  Tucker M,  Gerhard DS,  Fraumeni JF Jr,  Hoover RN,  Thomas G,  Chanock SJ
Journal: Nat Genet
Date: 2007 Jul
Branches: BB, CGR, EBP, ITEB, OEEB, OD
PubMed ID: 17529973
PMC ID: PMC3493132
Abstract: We conducted a genome-wide association study (GWAS) of breast cancer by genotyping 528,173 SNPs in 1,145 postmenopausal women of European ancestry with invasive breast cancer and 1,142 controls. We identified four SNPs in intron 2 of FGFR2 (which encodes a receptor tyrosine kinase and is amplified or overexpressed in some breast cancers) that were highly associated with breast cancer and confirmed this association in 1,776 affected individuals and 2,072 controls from three additional studies. Across the four studies, the association with all four SNPs was highly statistically significant (P(trend) for the most strongly associated SNP (rs1219648) = 1.1 x 10(-10); population attributable risk = 16%). Four SNPs at other loci most strongly associated with breast cancer in the initial GWAS were not associated in the replication studies. Our summary results from the GWAS are available online in a form that should speed the identification of additional risk loci.