Identification of four novel susceptibility loci for oestrogen receptor negative breast cancer
Research output: Contribution to journal › Journal article › Research › peer-review
Fergus J Couch, Karoline B Kuchenbaecker, Kyriaki Michailidou, Gustavo A Mendoza-Fandino, Silje Nord, Janna Lilyquist, Curtis Olswold, Emily Hallberg, Simona Agata, Habibul Ahsan, Kristiina Aittomäki, Christine B Ambrosone, Irene L Andrulis, Hoda Anton-Culver, Volker Arndt, Banu K Arun, Brita Arver, Monica Barile, Rosa B Barkardottir, Daniel Barrowdale & 229 others
Common variants in 94 loci have been associated with breast cancer including 15 loci with genome-wide significant associations (P<5 × 10(-8)) with oestrogen receptor (ER)-negative breast cancer and BRCA1-associated breast cancer risk. In this study, to identify new ER-negative susceptibility loci, we performed a meta-analysis of 11 genome-wide association studies (GWAS) consisting of 4,939 ER-negative cases and 14,352 controls, combined with 7,333 ER-negative cases and 42,468 controls and 15,252 BRCA1 mutation carriers genotyped on the iCOGS array. We identify four previously unidentified loci including two loci at 13q22 near KLF5, a 2p23.2 locus near WDR43 and a 2q33 locus near PPIL3 that display genome-wide significant associations with ER-negative breast cancer. In addition, 19 known breast cancer risk loci have genome-wide significant associations and 40 had moderate associations (P<0.05) with ER-negative disease. Using functional and eQTL studies we implicate TRMT61B and WDR43 at 2p23.2 and PPIL3 at 2q33 in ER-negative breast cancer aetiology. All ER-negative loci combined account for ∼11% of familial relative risk for ER-negative disease and may contribute to improved ER-negative and BRCA1 breast cancer risk prediction.
|Number of pages||13|
|Publication status||Published - 2016|
- Journal Article