TY - JOUR
T1 - Identification and characterization of novel associations in the CASP8/ALS2CR12 region on chromosome 2 with breast cancer risk
AU - Lin, Wei-Yu
AU - Camp, Nicola J
AU - Ghoussaini, Maya
AU - Beesley, Jonathan
AU - Michailidou, Kyriaki
AU - Hopper, John L
AU - Apicella, Carmel
AU - Southey, Melissa C
AU - Stone, Jennifer
AU - Schmidt, Marjanka K
AU - Broeks, Annegien
AU - Van't Veer, Laura J
AU - Th Rutgers, Emiel J
AU - Muir, Kenneth
AU - Lophatananon, Artitaya
AU - Stewart-Brown, Sarah
AU - Siriwanarangsan, Pornthep
AU - Fasching, Peter A
AU - Haeberle, Lothar
AU - Ekici, Arif B
AU - Beckmann, Matthias W
AU - Peto, Julian
AU - Dos-Santos-Silva, Isabel
AU - Fletcher, Olivia
AU - Johnson, Nichola
AU - Bolla, Manjeet K
AU - Wang, Qin
AU - Dennis, Joe
AU - Sawyer, Elinor J
AU - Cheng, Timothy
AU - Tomlinson, Ian
AU - Kerin, Michael J
AU - Miller, Nicola
AU - Marmé, Frederik
AU - Surowy, Harald M
AU - Burwinkel, Barbara
AU - Guénel, Pascal
AU - Truong, Thérèse
AU - Menegaux, Florence
AU - Mulot, Claire
AU - Bojesen, Stig E
AU - Nordestgaard, Børge G
AU - Nielsen, Sune F
AU - Flyger, Henrik
AU - Benitez, Javier
AU - Zamora, M Pilar
AU - Arias Perez, Jose Ignacio
AU - Menéndez, Primitiva
AU - González-Neira, Anna
AU - Pita, Guillermo
AU - GENICA Network
N1 - © The Author 2014. Published by Oxford University Press. All rights reserved. For Permissions, please email: [email protected].
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Previous studies have suggested that polymorphisms in CASP8 on chromosome 2 are associated with breast cancer risk. To clarify the role of CASP8 in breast cancer susceptibility, we carried out dense genotyping of this region in the Breast Cancer Association Consortium (BCAC). Single-nucleotide polymorphisms (SNPs) spanning a 1 Mb region around CASP8 were genotyped in 46 450 breast cancer cases and 42 600 controls of European origin from 41 studies participating in the BCAC as part of a custom genotyping array experiment (iCOGS). Missing genotypes and SNPs were imputed and, after quality exclusions, 501 typed and 1232 imputed SNPs were included in logistic regression models adjusting for study and ancestry principal components. The SNPs retained in the final model were investigated further in data from nine genome-wide association studies (GWAS) comprising in total 10 052 case and 12 575 control subjects. The most significant association signal observed in European subjects was for the imputed intronic SNP rs1830298 in ALS2CR12 (telomeric to CASP8), with per allele odds ratio and 95% confidence interval [OR (95% confidence interval, CI)] for the minor allele of 1.05 (1.03-1.07), P = 1 × 10(-5). Three additional independent signals from intronic SNPs were identified, in CASP8 (rs36043647), ALS2CR11 (rs59278883) and CFLAR (rs7558475). The association with rs1830298 was replicated in the imputed results from the combined GWAS (P = 3 × 10(-6)), yielding a combined OR (95% CI) of 1.06 (1.04-1.08), P = 1 × 10(-9). Analyses of gene expression associations in peripheral blood and normal breast tissue indicate that CASP8 might be the target gene, suggesting a mechanism involving apoptosis.
AB - Previous studies have suggested that polymorphisms in CASP8 on chromosome 2 are associated with breast cancer risk. To clarify the role of CASP8 in breast cancer susceptibility, we carried out dense genotyping of this region in the Breast Cancer Association Consortium (BCAC). Single-nucleotide polymorphisms (SNPs) spanning a 1 Mb region around CASP8 were genotyped in 46 450 breast cancer cases and 42 600 controls of European origin from 41 studies participating in the BCAC as part of a custom genotyping array experiment (iCOGS). Missing genotypes and SNPs were imputed and, after quality exclusions, 501 typed and 1232 imputed SNPs were included in logistic regression models adjusting for study and ancestry principal components. The SNPs retained in the final model were investigated further in data from nine genome-wide association studies (GWAS) comprising in total 10 052 case and 12 575 control subjects. The most significant association signal observed in European subjects was for the imputed intronic SNP rs1830298 in ALS2CR12 (telomeric to CASP8), with per allele odds ratio and 95% confidence interval [OR (95% confidence interval, CI)] for the minor allele of 1.05 (1.03-1.07), P = 1 × 10(-5). Three additional independent signals from intronic SNPs were identified, in CASP8 (rs36043647), ALS2CR11 (rs59278883) and CFLAR (rs7558475). The association with rs1830298 was replicated in the imputed results from the combined GWAS (P = 3 × 10(-6)), yielding a combined OR (95% CI) of 1.06 (1.04-1.08), P = 1 × 10(-9). Analyses of gene expression associations in peripheral blood and normal breast tissue indicate that CASP8 might be the target gene, suggesting a mechanism involving apoptosis.
KW - Breast Neoplasms
KW - CASP8 and FADD-Like Apoptosis Regulating Protein
KW - Case-Control Studies
KW - Caspase 8
KW - Chromosomes, Human, Pair 2
KW - European Continental Ancestry Group
KW - Female
KW - Genetic Predisposition to Disease
KW - Genome-Wide Association Study
KW - Genotyping Techniques
KW - Humans
KW - Polymorphism, Single Nucleotide
KW - Proteins
U2 - 10.1093/hmg/ddu431
DO - 10.1093/hmg/ddu431
M3 - Journal article
C2 - 25168388
SN - 0964-6906
VL - 24
SP - 285
EP - 298
JO - Human Molecular Genetics
JF - Human Molecular Genetics
IS - 1
ER -