Identification of ten variants associated with risk of estrogen-receptor-negative breast cancer
Research output: Contribution to journal › Journal article › Research › peer-review
Most common breast cancer susceptibility variants have been identified through genome-wide association studies (GWAS) of predominantly estrogen receptor (ER)-positive disease. We conducted a GWAS using 21,468 ER-negative cases and 100,594 controls combined with 18,908 BRCA1 mutation carriers (9,414 with breast cancer), all of European origin. We identified independent associations at P < 5 × 10-8 with ten variants at nine new loci. At P < 0.05, we replicated associations with 10 of 11 variants previously reported in ER-negative disease or BRCA1 mutation carrier GWAS and observed consistent associations with ER-negative disease for 105 susceptibility variants identified by other studies. These 125 variants explain approximately 16% of the familial risk of this breast cancer subtype. There was high genetic correlation (0.72) between risk of ER-negative breast cancer and breast cancer risk for BRCA1 mutation carriers. These findings may lead to improved risk prediction and inform further fine-mapping and functional work to better understand the biological basis of ER-negative breast cancer.
|Publication status||Published - 2017|
- BRCA1 Protein/genetics, Breast Neoplasms/ethnology, European Continental Ancestry Group/genetics, Female, Genetic Predisposition to Disease/ethnology, Genome-Wide Association Study/methods, Heterozygote, Humans, Mutation, Polymorphism, Single Nucleotide, Receptors, Estrogen/metabolism, Risk Factors