Fine-Scale Mapping at 9p22.2 Identifies Candidate Causal Variants That Modify Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers
| Autor: | Vigorito, E., Kuchenbaecker, K.B., Beesley, J., Adlard, J., Agnarsson, B.A., Andrulis, I.L., Arun, B.K., Barjhoux, L., Belotti, M., Benitez, J., Berger, A., Bojesen, A., Bonanni, B., Brewer, C., Caldes, T., Caligo, M.A., Campbell, I., Chan, S.B., Claes, K.B., Cohn, D.E., Cook, J., Daly, M.B., Damiola, F., Davidson, R., Pauw, A. de, Delnatte, C., Diez, O., Domchek, S.M., Dumont, M., Durda, K., Dworniczak, B., Easton, D.F., Eccles, D., Edwinsdotter Ardnor, C., Eeles, R., Ejlertsen, B., Ellis, S., Evans, D.G., Feliubadalo, L., Fostira, F., Foulkes, W.D., Friedman, E., Frost, D., Gaddam, P., Ganz, P.A., Garber, J., Garcia-Barberan, V., Gauthier-Villars, M., Gehrig, A., Gerdes, A.M., Giraud, S., Godwin, A.K., Goldgar, D.E., Hake, C.R., Hansen, T.V., Healey, S., Hodgson, S., Hogervorst, F.B., Houdayer, C., Hulick, P.J., Imyanitov, E.N., Isaacs, C., Izatt, L., Izquierdo, A., Jacobs, L, Jakubowska, A., Janavicius, R., Jaworska-Bieniek, K., Jensen, U.B., John, E.M., Vijai, J., Karlan, B.Y., Kast, K., Khan, S., Kwong, A., Laitman, Y., Lester, J., Lesueur, F., Liljegren, A., Lubinski, J., Mai, P.L., Manoukian, S., Mazoyer, S., Meindl, A., Mensenkamp, A.R., Montagna, M., Nathanson, K.L., Neuhausen, S.L., Nevanlinna, H., Niederacher, D., Olah, E., Olopade, O.I., Ong, K.R., Osorio, A., Park, S.K., Paulsson-Karlsson, Y., Pedersen, I.S., Peissel, B., Peterlongo, P. |
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| Přispěvatelé: | Prokunina-Olsson, Ludmila |
| Rok vydání: | 2016 |
| Předmět: |
endocrine system diseases
General Science & Technology Chromosomes Rare Diseases Clinical Research Breast Cancer Tumours of the digestive tract Radboud Institute for Molecular Life Sciences [Radboudumc 14] Genetics 2.1 Biological and endogenous factors Humans Genetic Predisposition to Disease Aetiology Polymorphism skin and connective tissue diseases Cancer Ovarian Neoplasms Prevention Genetic Carrier Screening Human Genome Chromosome Mapping Single Nucleotide BRCA1 BRCA2 Ovarian Cancer Genes Female KConFab Investigators Human Pair 9 |
| Zdroj: | PloS one, vol 11, iss 7 PLoS One, 11 PLoS One, 11, 7 |
| ISSN: | 1932-6203 1012-4837 |
| DOI: | 10.1371/journal.pone.0158801 |
| Popis: | Contains fulltext : 172560.PDF (Publisher’s version ) (Open Access) Population-based genome wide association studies have identified a locus at 9p22.2 associated with ovarian cancer risk, which also modifies ovarian cancer risk in BRCA1 and BRCA2 mutation carriers. We conducted fine-scale mapping at 9p22.2 to identify potential causal variants in BRCA1 and BRCA2 mutation carriers. Genotype data were available for 15,252 (2,462 ovarian cancer cases) BRCA1 and 8,211 (631 ovarian cancer cases) BRCA2 mutation carriers. Following genotype imputation, ovarian cancer associations were assessed for 4,873 and 5,020 SNPs in BRCA1 and BRCA 2 mutation carriers respectively, within a retrospective cohort analytical framework. In BRCA1 mutation carriers one set of eight correlated candidate causal variants for ovarian cancer risk modification was identified (top SNP rs10124837, HR: 0.73, 95%CI: 0.68 to 0.79, p-value 2x 10-16). These variants were located up to 20 kb upstream of BNC2. In BRCA2 mutation carriers one region, up to 45 kb upstream of BNC2, and containing 100 correlated SNPs was identified as candidate causal (top SNP rs62543585, HR: 0.69, 95%CI: 0.59 to 0.80, p-value 1.0 x 10-6). The candidate causal in BRCA1 mutation carriers did not include the strongest associated variant at this locus in the general population. In sum, we identified a set of candidate causal variants in a region that encompasses the BNC2 transcription start site. The ovarian cancer association at 9p22.2 may be mediated by different variants in BRCA1 mutation carriers and in the general population. Thus, potentially different mechanisms may underlie ovarian cancer risk for mutation carriers and the general population. |
| Databáze: | OpenAIRE |
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