Browsing Genetics and Epidemiology by author "Fletcher, Olivia"
Now showing items 1-20 of 35
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A transcriptome-wide association study of 229,000 women identifies new candidate susceptibility genes for breast cancer.
Wu, L; Shi, W; Long, J; Guo, X; Michailidou, K; et al. (NATURE PUBLISHING GROUP, 2018-07-01)The breast cancer risk variants identified in genome-wide association studies explain only a small fraction of the familial relative risk, and the genes responsible for these associations remain largely unknown. To identify ... -
Age- and Tumor Subtype-Specific Breast Cancer Risk Estimates for CHEK2*1100delC Carriers.
Schmidt, MK; Hogervorst, F; van Hien, R; Cornelissen, S; Broeks, A; et al. (AMER SOC CLINICAL ONCOLOGY, 2016-08-10)PURPOSE: CHEK2*1100delC is a well-established breast cancer risk variant that is most prevalent in European populations; however, there are limited data on risk of breast cancer by age and tumor subtype, which limits its ... -
Aggregation tests identify new gene associations with breast cancer in populations with diverse ancestry.
Mueller, SH; Lai, AG; Valkovskaya, M; Michailidou, K; Bolla, MK; et al. (BMC, 2023-01-26)BACKGROUND: Low-frequency variants play an important role in breast cancer (BC) susceptibility. Gene-based methods can increase power by combining multiple variants in the same gene and help identify target genes. METHODS: ... -
Association analysis identifies 65 new breast cancer risk loci.
Michailidou, K; Lindström, S; Dennis, J; Beesley, J; Hui, S; et al. (2017-11)Breast cancer risk is influenced by rare coding variants in susceptibility genes, such as BRCA1, and many common, mostly non-coding variants. However, much of the genetic contribution to breast cancer risk remains unknown. ... -
Association of genetic susceptibility variants for type 2 diabetes with breast cancer risk in women of European ancestry.
Zhao, Z; Wen, W; Michailidou, K; Bolla, MK; Wang, Q; et al. (SPRINGER, 2016-05-01)PURPOSE: Type 2 diabetes (T2D) has been reported to be associated with an elevated risk of breast cancer. It is unclear, however, whether this association is due to shared genetic factors. METHODS: We constructed a genetic ... -
Associations of obesity and circulating insulin and glucose with breast cancer risk: a Mendelian randomization analysis.
Shu, X; Wu, L; Khankari, NK; Shu, X-O; Wang, TJ; et al. (OXFORD UNIV PRESS, 2019-06-01)BACKGROUND: In addition to the established association between general obesity and breast cancer risk, central obesity and circulating fasting insulin and glucose have been linked to the development of this common malignancy. ... -
Capture Hi-C identifies the chromatin interactome of colorectal cancer risk loci.
Jäger, R; Migliorini, G; Henrion, M; Kandaswamy, R; Speedy, HE; et al. (NATURE PORTFOLIO, 2015-02-19)Multiple regulatory elements distant from their targets on the linear genome can influence the expression of a single gene through chromatin looping. Chromosome conformation capture implemented in Hi-C allows for genome-wide ... -
Common Susceptibility Loci for Male Breast Cancer.
Maguire, S; Perraki, E; Tomczyk, K; Jones, ME; Fletcher, O; et al. (OXFORD UNIV PRESS INC, 2021-04-06)BACKGROUND: The etiology of male breast cancer (MBC) is poorly understood. In particular, the extent to which the genetic basis of MBC differs from female breast cancer (FBC) is unknown. A previous genome-wide association ... -
Cross-Cancer Genome-Wide Analysis of Lung, Ovary, Breast, Prostate, and Colorectal Cancer Reveals Novel Pleiotropic Associations.
Fehringer, G; Kraft, P; Pharoah, PD; Eeles, RA; Chatterjee, N; et al. (AMER ASSOC CANCER RESEARCH, 2016-09-01)Identifying genetic variants with pleiotropic associations can uncover common pathways influencing multiple cancers. We took a two-stage approach to conduct genome-wide association studies for lung, ovary, breast, prostate, ... -
CYP3A7*1C allele: linking premenopausal oestrone and progesterone levels with risk of hormone receptor-positive breast cancers.
Johnson, N; Maguire, S; Morra, A; Kapoor, PM; Tomczyk, K; et al. (SPRINGERNATURE, 2021-02-16)BACKGROUND: Epidemiological studies provide strong evidence for a role of endogenous sex hormones in the aetiology of breast cancer. The aim of this analysis was to identify genetic variants that are associated with urinary ... -
DNA methylation of the long intergenic noncoding RNA 299 gene in triple-negative breast cancer: results from a prospective study.
Manoochehri, M; Jones, M; Tomczyk, K; Fletcher, O; Schoemaker, MJ; et al. (NATURE PUBLISHING GROUP, 2020-07-16)Triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype associated with a high rate of recurrence and poor prognosis. Recently we identified a hypermethylation in the long noncoding RNA 299 (LINC00299) ... -
Epigenome-wide association study for lifetime estrogen exposure identifies an epigenetic signature associated with breast cancer risk.
Johansson, A; Palli, D; Masala, G; Grioni, S; Agnoli, C; et al. (BMC, 2019-04-30)BACKGROUND: It is well established that estrogens and other hormonal factors influence breast cancer susceptibility. We hypothesized that a woman's total lifetime estrogen exposure accumulates changes in DNA methylation, ... -
Evaluation of European-based polygenic risk score for breast cancer in Ashkenazi Jewish women in Israel.
Levi, H; Carmi, S; Rosset, S; Yerushalmi, R; Zick, A; et al. (BMJ PUBLISHING GROUP, 2023-11-27)BACKGROUND: Polygenic risk score (PRS), calculated based on genome-wide association studies (GWASs), can improve breast cancer (BC) risk assessment. To date, most BC GWASs have been performed in individuals of European ... -
Evidence that the 5p12 Variant rs10941679 Confers Susceptibility to Estrogen-Receptor-Positive Breast Cancer through FGF10 and MRPS30 Regulation.
Ghoussaini, M; French, JD; Michailidou, K; Nord, S; Beesley, J; et al. (CELL PRESS, 2016-10-06)Genome-wide association studies (GWASs) have revealed increased breast cancer risk associated with multiple genetic variants at 5p12. Here, we report the fine mapping of this locus using data from 104,660 subjects from 50 ... -
Fine scale mapping of the 17q22 breast cancer locus using dense SNPs, genotyped within the Collaborative Oncological Gene-Environment Study (COGs).
Darabi, H; Beesley, J; Droit, A; Kar, S; Nord, S; et al. (NATURE PORTFOLIO, 2016-09-07)Genome-wide association studies have found SNPs at 17q22 to be associated with breast cancer risk. To identify potential causal variants related to breast cancer risk, we performed a high resolution fine-mapping analysis ... -
Fine-mapping of 150 breast cancer risk regions identifies 191 likely target genes.
Fachal, L; Aschard, H; Beesley, J; Barnes, DR; Allen, J; et al. (NATURE PORTFOLIO, 2020-01-07)Genome-wide association studies have identified breast cancer risk variants in over 150 genomic regions, but the mechanisms underlying risk remain largely unknown. These regions were explored by combining association ... -
Fine-Mapping of the 1p11.2 Breast Cancer Susceptibility Locus.
Horne, HN; Chung, CC; Zhang, H; Yu, K; Prokunina-Olsson, L; et al. (PUBLIC LIBRARY SCIENCE, 2016-08-24)The Cancer Genetic Markers of Susceptibility genome-wide association study (GWAS) originally identified a single nucleotide polymorphism (SNP) rs11249433 at 1p11.2 associated with breast cancer risk. To fine-map this locus, ... -
Fine-scale mapping of 8q24 locus identifies multiple independent risk variants for breast cancer.
Shi, J; Zhang, Y; Zheng, W; Michailidou, K; Ghoussaini, M; et al. (WILEY, 2016-09-15)Previous genome-wide association studies among women of European ancestry identified two independent breast cancer susceptibility loci represented by single nucleotide polymorphisms (SNPs) rs13281615 and rs11780156 at 8q24. ... -
Functional annotation of the 2q35 breast cancer risk locus implicates a structural variant in influencing activity of a long-range enhancer element.
Baxter, JS; Johnson, N; Tomczyk, K; Gillespie, A; Maguire, S; et al. (CELL PRESS, 2021-07-01)A combination of genetic and functional approaches has identified three independent breast cancer risk loci at 2q35. A recent fine-scale mapping analysis to refine these associations resulted in 1 (signal 1), 5 (signal 2), ... -
Functional mechanisms underlying pleiotropic risk alleles at the 19p13.1 breast-ovarian cancer susceptibility locus.
Lawrenson, K; Kar, S; McCue, K; Kuchenbaeker, K; Michailidou, K; et al. (NATURE PORTFOLIO, 2016-09-07)A locus at 19p13 is associated with breast cancer (BC) and ovarian cancer (OC) risk. Here we analyse 438 SNPs in this region in 46,451 BC and 15,438 OC cases, 15,252 BRCA1 mutation carriers and 73,444 controls and identify ...