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  • 1
    Keywords: APOPTOSIS ; CANCER ; Germany ; NEW-YORK ; POPULATION ; RISK ; GENE ; ASSOCIATION ; polymorphism ; SUSCEPTIBILITY ; BREAST ; breast cancer ; BREAST-CANCER ; DELETION ; NO ; PROMOTER ; REDUCED RISK ; cancer risk ; REGION ; case-control studies ; ONCOLOGY ; case-control study ; RE ; VARIANT ; PROMOTER POLYMORPHISM ; USA ; caspases ; PROMOTER REGION ; CANCER-RISK ; COMMON VARIANT ; breast cancer risk ; Sp1 binding site ; CASP8-652 6N del
    Abstract: A recent study on an Asian population reported a six-nucleotide insertion-deletion polymorphism (-652 6N del) in the CASP8 promoter region to be strongly associated with a decreased risk of multiple types of cancer, including breast cancer (BC). Here, we investigate the effect of this deletion in four independent large European BC case-control studies, including data from a total of 7,753 cases and 7,921 controls. The combined per allele odds ratio (OR) was 0.97 (95% confidence interval (CI), 95% CI = 0.93-1.02). The present result indicates that the CASP8 -652 6N del variant has no significant effect on BC risk in Europeans
    Type of Publication: Journal article published
    PubMed ID: 17891485
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  • 2
    Keywords: CANCER ; COMMON ; DISEASE ; RISK ; RISKS ; GENE ; GENES ; primary ; ASSOCIATION ; polymorphism ; POLYMORPHISMS ; single nucleotide polymorphism ; SUSCEPTIBILITY ; VARIANTS ; BREAST ; breast cancer ; BREAST-CANCER ; STAGE ; PATTERNS ; OVARIAN-CANCER ; SNP ; DATABASE ; Jun ; POPULATIONS ; familial risk ; BRCA2 MUTATIONS ; SUSCEPTIBILITY GENE ; SINGLE ; AGGREGATION ; VARIANT ; ALLELE ; SINGLE NUCLEOTIDE POLYMORPHISMS ; SNPs ; CANCER SUSCEPTIBILITY ; ALLELES ; LEVEL ; familial aggregation ; single-nucleotide ; UNIT ; ENGLAND ; LOCI ; CHEK2-ASTERISK-1100DELC ; breast cancer susceptibility ; GENOME-WIDE ASSOCIATION ; association study ; GENETIC-SUSCEPTIBILITY ; GROWTH-FACTOR RECEPTOR-2
    Abstract: Breast cancer exhibits familial aggregation, consistent with variation in genetic susceptibility to the disease. Known susceptibility genes account for less than 25% of the familial risk of breast cancer, and the residual genetic variance is likely to be due to variants conferring more moderate risks. To identify further susceptibility alleles, we conducted a two-stage genome-wide association study in 4,398 breast cancer cases and 4,316 controls, followed by a third stage in which 30 single nucleotide polymorphisms (SNPs) were tested for confirmation in 21,860 cases and 22,578 controls from 22 studies. We used 227,876 SNPs that were estimated to correlate with 77% of known common SNPs in Europeans at r(2) 〉 0.5. SNPs in five novel independent loci exhibited strong and consistent evidence of association with breast cancer (P 〈 10(-7)). Four of these contain plausible causative genes (FGFR2, TNRC9, MAP3K1 and LSP1). At the second stage, 1,792 SNPs were significant at the P 〈 0.05 level compared with an estimated 1,343 that would be expected by chance, indicating that many additional common susceptibility alleles may be identifiable by this approach
    Type of Publication: Journal article published
    PubMed ID: 17529967
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  • 3
    Keywords: CANCER ; EXPRESSION ; MODEL ; COMMON ; POPULATION ; RISK ; RISKS ; GENE ; PROTEIN ; BIOLOGY ; MOLECULAR-BIOLOGY ; ASSOCIATION ; polymorphism ; POLYMORPHISMS ; single nucleotide polymorphism ; SUSCEPTIBILITY ; VARIANTS ; BREAST ; breast cancer ; BREAST-CANCER ; BRCA1 ; OVARIAN-CANCER ; MUTATION ; genetics ; SNP ; cancer risk ; CARRIERS ; case-control studies ; ESTROGEN-RECEPTOR ; SINGLE ; molecular biology ; case control study ; case-control study ; population-based case-control study ; BRCA2 ; VARIANT ; SINGLE NUCLEOTIDE POLYMORPHISMS ; SNPs ; MUTATION CARRIERS ; ALLELES ; INCREASED RISK ; population-based ; CANCER-RISK ; COMMON VARIANT ; 8Q24 ; NOV ; GENOME-WIDE ASSOCIATION ; GENERAL-POPULATION ; breast cancer risk ; UK ; Genetic ; 33 ; COMMON VARIANTS ; Genome-wide association studies ; BRCA1 and BRCA2
    Abstract: Genome-wide association studies of breast cancer have identified multiple single nucleotide polymorphisms (SNPs) that are associated with increased breast cancer risks in the general population. In a previous study, we demonstrated that the minor alleles at three of these SNPs, in FGFR2, TNRC9 and MAP3K1, also confer increased risks of breast cancer for BRCA1 or BRCA2 mutation carriers. Three additional SNPs rs3817198 at LSP1, rs13387042 at 2q35 and rs13281615 at 8q24 have since been reported to be associated with breast cancer in the general population, and in this study we evaluated their association with breast cancer risk in 9442 BRCA1 and 5665 BRCA2 mutation carriers from 33 study centres. The minor allele of rs3817198 was associated with increased breast cancer risk only for BRCA2 mutation carriers [hazard ratio (HR) = 1.16, 95% CI: 1.07-1.25, P-trend = 2.8 x 10(-4)]. The best fit for the association of SNP rs13387042 at 2q35 with breast cancer risk was a dominant model for both BRCA1 and BRCA2 mutation carriers (BRCA1: HR = 1.14, 95% CI: 1.04-1.25, P = 0.0047; BRCA2: HR = 1.18 95% CI: 1.04-1.33, P = 0.0079). SNP rs13281615 at 8q24 was not associated with breast cancer for either BRCA1 or BRCA2 mutation carriers, but the estimated association for BRCA2 mutation carriers (per-allele HR = 1.06, 95% CI: 0.98-1.14) was consistent with odds ratio estimates derived from population-based case-control studies. The LSP1 and 2q35 SNPs appear to interact multiplicatively on breast cancer risk for BRCA2 mutation carriers. There was no evidence that the associations vary by mutation type depending on whether the mutated protein is predicted to be stable or not
    Type of Publication: Journal article published
    PubMed ID: 19656774
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  • 4
    Keywords: RECEPTOR ; APOPTOSIS ; CANCER ; HISTORY ; RISK ; SAMPLE ; TUMOR-NECROSIS-FACTOR ; FAMILY ; BIOMARKERS ; ASSOCIATION ; polymorphism ; POLYMORPHISMS ; single nucleotide polymorphism ; FREQUENCIES ; BREAST ; breast cancer ; BREAST-CANCER ; HEALTH ; AGE ; WOMEN ; SNP ; cancer risk ; GENOTYPES ; HETEROGENEITY ; FAMILIES ; VARIANT ; SINGLE NUCLEOTIDE POLYMORPHISMS ; ESTROGEN ; SINGLE-NUCLEOTIDE POLYMORPHISMS ; ALLELES ; biomarker ; GENOTYPE ; FAMILY-HISTORY ; USA ; CANCER-RISK ; Sample Size ; CONSORTIUM ; ERCC4 ; RECEPTOR STATUS ; PROGESTERONE-RECEPTOR GENE ; CASP8
    Abstract: Previous studies have suggested that minor alleles for ERCC4 rs744154, TNF rs361525, CASP10 rs13010627, PGR rs1042838, and BID rs8190315 may influence breast cancer risk, but the evidence is inconclusive due to their small sample size. These polymorphisms were genotyped in more than 30,000 breast cancer cases and 30,000 controls, primarily of European descent, from 30 studies in the Breast Cancer Association Consortium. We calculated odds ratios (OR) and 95% confidence intervals (95% CI) as a measure of association. We found that the minor alleles for these polymorphisms were not related to invasive breast cancer risk overall in women of European descent: ECCR4 per-allele OR (95% CI) = 0.99 (0.97-1.02), minor allele frequency = 27.5%; TNF 1.00 (0.95-1.06), 5.0%; CASP10 1.02 (0.98-1.07), 6.5%; PGR 1.02 (0.99-1.06), 15.3%; and BID 0.98 (0.86-1.12), 1.7%. However, we observed significant between-study heterogeneity for associations with risk for single-nucleotide polymorphisms (SNP) in CASP10, PGR, and BID. Estimates were imprecise for women of Asian and African descent due to small numbers and lower minor allele frequencies (with the exception of BID SNP). The ORs for each copy of the minor allele were not significantly different by estrogen or progesterone receptor status, nor were any significant interactions found between the polymorphisms and age or family history of breast cancer. In conclusion, our data provide persuasive evidence against an overall association between invasive breast cancer risk and ERCC4 rs744154, TNF rs361525, CASPIO rs13010627, PGR rs1042838, and BID rs8190315 genotypes among women of European descent. (Cancer Epidemiol Biomarkers Prev 2009;18(5):1610-6)
    Type of Publication: Journal article published
    PubMed ID: 19423537
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  • 5
    Keywords: CANCER ; RISK ; ASSOCIATION ; SUSCEPTIBILITY ; BREAST ; breast cancer ; BREAST-CANCER ; VARIANT ; SNPs
    Abstract: The Breast Cancer Association Consortium (BCAC) has been established to conduct combined case-control analyses with augmented statistical power to try to confirm putative genetic associations with breast cancer. We genotyped nine SNPs for which there was some prior evidence of an association with breast cancer: CASP8 D302H (rs1045485), IGFBP3 -202 C --〉 A (rs2854744), SOD2 V16A (rs1799725), TGFB1 L10P (rs1982073), ATM S49C (rs1800054), ADH1B 3' UTR A --〉 G (rs1042026), CDKN1A S31R (rs1801270), ICAM5 V301I (rs1056538) and NUMA1 A794G (rs3750913). We included data from 9-15 studies, comprising 11,391-18,290 cases and 14,753-22,670 controls. We found evidence of an association with breast cancer for CASP8 D302H (with odds ratios (OR) of 0.89 (95% confidence interval (c.i.): 0.85-0.94) and 0.74 (95% c.i.: 0.62-0.87) for heterozygotes and rare homozygotes, respectively, compared with common homozygotes; P(trend) = 1.1 x 10(-7)) and weaker evidence for TGFB1 L10P (OR = 1.07 (95% c.i.: 1.02-1.13) and 1.16 (95% c.i.: 1.08-1.25), respectively; P(trend) = 2.8 x 10(-5)). These results demonstrate that common breast cancer susceptibility alleles with small effects on risk can be identified, given sufficiently powerful studies
    Type of Publication: Journal article published
    PubMed ID: 17293864
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