Association of breast cancer risk in BRCA1 and BRCA2 mutation carriers with genetic variants showing differential allelic expression: identification of a modifier of breast cancer risk at locus 11q22.3.
De la Hoya, M
De Leeneer, K
Gareth Evans, D
GEMO Study Collaborators
van den Ouweland, AMW
van der Luijt, RB
van Engelen, K
van Rensburg, EJ
MetadataShow full item record
PURPOSE: Cis-acting regulatory SNPs resulting in differential allelic expression (DAE) may, in part, explain the underlying phenotypic variation associated with many complex diseases. To investigate whether common variants associated with DAE were involved in breast cancer susceptibility among BRCA1 and BRCA2 mutation carriers, a list of 175 genes was developed based of their involvement in cancer-related pathways. METHODS: Using data from a genome-wide map of SNPs associated with allelic expression, we assessed the association of ~320 SNPs located in the vicinity of these genes with breast and ovarian cancer risks in 15,252 BRCA1 and 8211 BRCA2 mutation carriers ascertained from 54 studies participating in the Consortium of Investigators of Modifiers of BRCA1/2. RESULTS: We identified a region on 11q22.3 that is significantly associated with breast cancer risk in BRCA1 mutation carriers (most significant SNP rs228595 p = 7 × 10-6). This association was absent in BRCA2 carriers (p = 0.57). The 11q22.3 region notably encompasses genes such as ACAT1, NPAT, and ATM. Expression quantitative trait loci associations were observed in both normal breast and tumors across this region, namely for ACAT1, ATM, and other genes. In silico analysis revealed some overlap between top risk-associated SNPs and relevant biological features in mammary cell data, which suggests potential functional significance. CONCLUSION: We identified 11q22.3 as a new modifier locus in BRCA1 carriers. Replication in larger studies using estrogen receptor (ER)-negative or triple-negative (i.e., ER-, progesterone receptor-, and HER2-negative) cases could therefore be helpful to confirm the association of this locus with breast cancer risk.
Version of record
BRCA1 and BRCA2 mutation carriers
Differential allelic expression
Chromosomes, Human, Pair 11
Genetic Predisposition to Disease
Quantitative Trait Loci
License start date
Breast Cancer Res Treat, 161 (1), pp. 117 - 134
Showing items related by title, author, creator and subject.
Sottoriva, A; Barnes, CP; Graham, TAThe cancer genome is shaped by three components of the evolutionary process: mutation, selection and drift. While many studies have focused on the first two components, the role of drift in cancer evolution has received ...
Lin, H-Y; Chen, D-T; Huang, P-Y; Liu, Y-H; Ochoa, A; Zabaleta, J; Mercante, DE; Fang, Z; Sellers, TA; Pow-Sang, JM; Cheng, C-H; Eeles, R; Easton, D; Kote-Jarai, Z; Amin Al Olama, A; Benlloch, S; Muir, K; Giles, GG; Wiklund, F; Gronberg, H; Haiman, CA; Schleutker, J; Nordestgaard, BG; Travis, RC; Hamdy, F; Pashayan, N; Khaw, K-T; Stanford, JL; Blot, WJ; Thibodeau, SN; Maier, C; Kibel, AS; Cybulski, C; Cannon-Albright, L; Brenner, H; Kaneva, R; Batra, J; Teixeira, MR; Pandha, H; Lu, Y-J; PRACTICAL Consortium; Park, JYMotivation: Testing SNP-SNP interactions is considered as a key for overcoming bottlenecks of genetic association studies. However, related statistical methods for testing SNP-SNP interactions are underdeveloped. Results: ...
Liu, H; Liu, Z; Wang, Y; Stinchcombe, TE; Owzar, K; Han, Y; Hung, RJ; Brhane, Y; McLaughlin, J; Brennan, P; Bickeböller, H; Rosenberger, A; Houlston, RS; Caporaso, N; Landi, MT; Brüske, I; Risch, A; Wu, X; Ye, Y; Christiani, DC; Amos, CI; Wei, Q; Transdisciplinary Research in Cancer of the Lung (TRICL) Research Team (2017-05-01)Cullin-RING ubiquitin ligases (CRLs) responsible for substrate specificity of ubiquitination play a key role in cell-cycle control and DNA damage response. In this study, we assessed associations between 16 599 SNPs in 115 ...