1. Common breast cancer susceptibility alleles are associated with tumour subtypes in BRCA1 and BRCA2 mutation carriers: results from the Consortium of Investigators of Modifiers of BRCA1/2
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Mulligan, Anna Marie, Couch, Fergus J, Barrowdale, Daniel, Domchek, Susan M, Eccles, Diana, Nevanlinna, Heli, Ramus, Susan J, Robson, Mark, Sherman, Mark, Spurdle, Amanda B, Wappenschmidt, Barbara, Lee, Andrew, McGuffog, Lesley, Healey, Sue, Sinilnikova, Olga M, Janavicius, Ramunas, Hansen, Thomas vO, Nielsen, Finn C, Ejlertsen, Bent, Osorio, Ana, Muñoz-Repeto, Iván, Durán, Mercedes, Godino, Javier, Pertesi, Maroulio, Benítez, Javier, Peterlongo, Paolo, Manoukian, Siranoush, Peissel, Bernard, Zaffaroni, Daniela, Cattaneo, Elisa, Bonanni, Bernardo, Viel, Alessandra, Pasini, Barbara, Papi, Laura, Ottini, Laura, Savarese, Antonella, Bernard, Loris, Radice, Paolo, Hamann, Ute, Verheus, Martijn, Meijers-Heijboer, Hanne EJ, Wijnen, Juul, Gómez García, Encarna B, Nelen, Marcel R, Kets, C Marleen, Seynaeve, Caroline, Tilanus-Linthorst, Madeleine MA, van der Luijt, Rob B, van Os, Theo, Rookus, Matti, Frost, Debra, Jones, J Louise, Evans, D Gareth, Lalloo, Fiona, Eeles, Ros, Izatt, Louise, Adlard, Julian, Davidson, Rosemarie, Cook, Jackie, Donaldson, Alan, Dorkins, Huw, Gregory, Helen, Eason, Jacqueline, Houghton, Catherine, Barwell, Julian, Side, Lucy E, McCann, Emma, Murray, Alex, Peock, Susan, Godwin, Andrew K, Schmutzler, Rita K, Rhiem, Kerstin, Engel, Christoph, Meindl, Alfons, Ruehl, Ina, Arnold, Norbert, Niederacher, Dieter, Sutter, Christian, Deissler, Helmut, Gadzicki, Dorothea, Kast, Karin, Preisler-Adams, Sabine, Varon-Mateeva, Raymonda, Schoenbuchner, Ines, Fiebig, Britta, Heinritz, Wolfram, Schäfer, Dieter, Gevensleben, Heidrun, Caux-Moncoutier, Virginie, Fassy-Colcombet, Marion, Cornelis, François, Mazoyer, Sylvie, Léoné, Mélanie, Boutry-Kryza, Nadia, Hardouin, Agnès, Berthet, Pascaline, Muller, Danièle, Fricker, Jean-Pierre, Mortemousque, Isabelle, Pujol, Pascal, Coupier, Isabelle, Lebrun, Marine, Kientz, Caroline, Longy, Michel, Sevenet, Nicolas, Stoppa-Lyonnet, Dominique, Isaacs, Claudine, Caldes, Trinidad, de la Hoya, Miguel, Heikkinen, Tuomas, Aittomäki, Kristiina, Blanco, Ignacio, Lazaro, Conxi, Barkardottir, Rosa B, Soucy, Penny, Dumont, Martine, Simard, Jacques, Montagna, Marco, Tognazzo, Silvia, D'Andrea, Emma, Fox, Stephen, Yan, Max, Rebbeck, Tim, Olopade, Olufunmilayo, Weitzel, Jeffrey N, Lynch, Henry T, Ganz, Patricia A, Tomlinson, Gail E, Wang, Xianshu, Fredericksen, Zachary, Pankratz, Vernon S, Lindor, Noralane M, Szabo, Csilla, Offit, Kenneth, Sakr, Rita, Gaudet, Mia, Bhatia, Jasmine, Kauff, Noah, Singer, Christian F, Tea, Muy-Kheng, Gschwantler-Kaulich, Daphne, Fink-Retter, Anneliese, Mai, Phuong L, Greene, Mark H, Imyanitov, Evgeny, O'Malley, Frances P, Ozcelik, Hilmi, Glendon, Gordon, Toland, Amanda E, Gerdes, Anne-Marie, Thomassen, Mads, Kruse, Torben A, Jensen, Uffe Birk, Skytte, Anne-Bine, Caligo, Maria A, Soller, Maria, Henriksson, Karin, Wachenfeldt, von Anna, Arver, Brita, Stenmark-Askmalm, Marie, Karlsson, Per, Ding, Yuan Chun, Neuhausen, Susan L, Beattie, Mary, Pharoah, Paul DP, Moysich, Kirsten B, Nathanson, Katherine L, Karlan, Beth Y, Gross, Jenny, John, Esther M, Daly, Mary B, Buys, Saundra M, Southey, Melissa C, Hopper, John L, Terry, Mary Beth, Chung, Wendy, Miron, Alexander F, Goldgar, David, Chenevix-Trench, Georgia, Easton, Douglas F, Andrulis, Irene L, Antoniou, Antonis C, Breast Cancer Family Registry, EMBRACE, GEMO Study Collaborators, HEBON, kConFab Investigators, Ontario Cancer Genetics Network, SWE-BRCA, CIMBA, Pediatric Surgery, Neurology, Medical Oncology, Surgery, Clinical Genetics, Department of Laboratory Medicine, St Michael's Hospital-Keenan Research Centre of the Li Ka Shing Knowledge Institute [Toronto], Department of Laboratory Medicine and Pathobiology, University of Toronto, Department of Laboratory Medicine and Pathology, Mayo Clinic, Centre for Cancer Genetic Epidemiology, University of Cambridge [UK] (CAM), Department of Medicine, University of Pennsylvania [Philadelphia]-Abramson Cancer Center, Faculty of Medicine, University of Southampton-University Hospital Southampton, Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Department of Preventive Medicine, University of Southern California (USC)-Keck School of Medicine [Los Angeles], University of Southern California (USC), Memorial Sloane Kettering Cancer Center [New York]-Weill Medical College of Cornell University [New York], Division of Cancer Epidemiology and Genetics, National Cancer Institute [Bethesda] (NCI-NIH), National Institutes of Health [Bethesda] (NIH)-National Institutes of Health [Bethesda] (NIH), Queensland Institute of Medical Research, Department of Gynaecology and Obstetrics, University Hospital of Cologne [Cologne]-Centre of Familial Breast and Ovarian Cancer-Centre for Integrated Oncology (CIO), Unité Mixte de Génétique Constitutionnelle des Cancers Fréquents, Centre Léon Bérard [Lyon]-Hospices Civils de Lyon (HCL), Centre de Recherche en Cancérologie de Lyon (UNICANCER/CRCL), Centre Léon Bérard [Lyon]-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Molecular and Regenerative Medicine, Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Clinics, State Research Institute Innovative Medicine Center, Center for Genomic Medicine, Copenhagen University Hospital-Rigshospitalet [Copenhagen], Copenhagen University Hospital, Department of Oncology, Human Genetics Group, Spanish National Cancer Research Centre-Spain and the Spanish Network on Rare Diseases, Institute of Biology and Molecular Genetics, Universidad de Valladolid (IBGM-UVA), Instituto de investigación sanitaria de Aragón (IIS), Hospital clinico Universitario 'Lozano Blesa', Molecular Diagnostics Laboratory, National Center for Scientific Research 'Demokritos' (NCSR)-IRRP, Unit of Molecular Bases of Genetic Risk and Genetic Testing, Fondazione IRCCS Istituto Nazionale Tumouri (INT), Fondazione Istituto FIRC di Oncologia Molecolare, IFOM, Istituto FIRC di Oncologia Molecolare (IFOM), Unit of Medical Genetics, Division of Cancer Prevention and Genetics, Istituto Europeo di Oncologia, Unit of Experimental Oncology 1, Centro di Riferimento Oncologico, Department of Genetics, Biology and Biochemistry, University of Turin, Medical Genetics Unit, Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Department of Molecular Medicine, Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Division of Medical Oncology, Regina Elena Cancer Institute, Department of Experimental Oncology, Consortium for Genomics Technology (Cogentech)-Istituto Europeo di Oncologia. Milan, Molecular Genetics of Breast Cancer, German Cancer Research Center - Deutsches Krebsforschungszentrum [Heidelberg] (DKFZ), Department of Epidemiology, Netherlands Cancer Institute, Department of Clinical Genetics, VU Medical Center, Department of Human Genetics and Department of Clinical Genetics, Leiden University Medical Center (LUMC), Department of Clinical Genetics and GROW, School for Oncology and Developmental Biology, Department of Human Genetics, Radboud University Medical Center [Nijmegen], Department of Medical Oncology, Erasmus University Medical Center [Rotterdam] (Erasmus MC)-Family Cancer Clinic, Department of Surgical Oncology, Department of Clinical Molecular Genetics, University Medical Center [Utrecht], Academic Medical Center - Academisch Medisch Centrum [Amsterdam] (AMC), University of Amsterdam [Amsterdam] (UvA)-University of Amsterdam [Amsterdam] (UvA), Barts Cancer Institute, Queen Mary University of London (QMUL), Genetic Medicine, Manchester Academic Health Sciences Centre-Central Manchester University Hospitals, Oncogenetics Team, The Institute of Cancer Research and Royal Marsden, Guy's and St. Thomas' NHS Foundation Trust, Yorkshire Regional Genetics Service, Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Sheffield Clinical Genetics Service, Sheffield Children's NHS Foundation Trust, Clinical Genetics Department, St Michael's Hospital, North West Thames Regional Genetics Service, Kennedy-Galton Centre, North of Scotland Regional Genetics Service, University of Aberdeen-NHS Grampian, Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust, Cheshire and Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Leicestershire Clinical Genetics Service, University Hospitals Leicester, North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children [London] (GOSH), All Wales Medical Genetics Services, Singleton Hospital, Department of Pathology and Laboratory Medicine, University of Kansas Medical Center [Lawrence], Institute for Medical Informatics, Statistics and Epidemiology [Leipzig] (IMISE), Universität Leipzig [Leipzig], Klinikum Rechts der Isar, Ludwig-Maximillians University, University Hospital of Schleswig-Holstein (UKSH), University Hospital Düsseldorf, Institute of Human Genetics, Heidelberg University Hospital [Heidelberg], Universitätsklinikum Ulm - University Hospital of Ulm, Institute of Cell and Molecular Pathology, Hannover Medical School [Hannover] (MHH), University Hospital Carl Gustav Carus, Westfälische Wilhelms-Universität Münster (WWU), Campus Virchov Klinikum, Department of Medical Genetic, Julius-Maximilians-Universität Würzburg [Wurtzbourg, Allemagne] (JMU)-Institute of Human Genetics-Centre of Familial Breast and Ovarian Cancer, Universität Regensburg (UR), University Hospital, Frankfurt, Breakthrough Breast Cancer Research Centre, Institute of cancer research, Service de Génétique Oncologique, Institut Curie [Paris], Service de génétique [Avicenne], Université Paris 13 (UP13)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Avicenne [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Hospitalier Sud Francilien, CH Evry-Corbeil, CHU Clermont-Ferrand, Centre Régional de Lutte contre le Cancer François Baclesse [Caen] (UNICANCER/CRLC), UNICANCER-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU), Unité d'oncogénétique, CRLCC Paul Strauss, Service de génétique [Tours], Hôpital Bretonneau-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Service de génétique médicale [Montpellier], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Arnaud de Villeneuve, Service de Génétique Clinique Chromosomique et Moléculaire, CHU Saint-Etienne, Validation et identification de nouvelles cibles en oncologie (VINCO), Institut Bergonié [Bordeaux], UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité de génétique et biologie des cancers (U830), Université Paris Descartes - Paris 5 (UPD5)-Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Lombardi Comprehensive Cancer Center, Georgetown University, Molecular Oncology Laboratory, Hospital Clínico San Carlos, Hereditary Cancer Program, Institut Català d'Oncologia-Hospital Duran i Reynals, Department of Pathology, Landspitali University Hospital, University of Iceland [Reykjavik], Cancer Genomics Laboratory, Centre Hospitalier Universitaire de Québec, Research Chair in Oncogenetics, Université Laval [Québec] (ULaval), Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV - IRCCS, Department of Oncology and Surgical Sciences, Universita degli Studi di Padova, Peter MacCallum Cancer Centre, Peter MacCallum Cancer Center, Department of Anatomical Pathology, Prince of Wales Hospital, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania [Philadelphia]-University of Pennsylvania [Philadelphia], University of Chicago, City of Hope Comprehensive Cancer Center and Department of Population Sciences, Beckman Research Institute, Departments of Medicine, and Preventive Medicine and Public Health, Creighton University, Jonsson Comprehensive Cancer Center, University of California [Los Angeles] (UCLA), University of California-University of California, Department of Internal Medicine, The University of Texas Health Science Center at Houston (UTHealth)-Harold C. Simmons Comprehensive Cancer Center, Department of Pediatrics, The University of Texas Health Science Center at Houston (UTHealth), Department of Medical Genetics, University of Delaware [Newark], Epidemiology Research Program, American Cancer Society, Department of Obstetrics/Gynaecology and Comprehensive Cancer Center, Medizinische Universität Wien = Medical University of Vienna, Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Samuel Lunenfeld Research Institute, Mount Sinai Hospital [Toronto, Canada] (MSH), Prevention & Cancer Control, Cancer Care Ontario, Departments of Molecular VirologyImmunology and Medical Genetics and Internal Medicine, Ohio State University [Columbus] (OSU), University of Copenhagen = Københavns Universitet (KU)-Rigshospital, Odense University Hospital, Aarhus University Hospital, Vejle Hospital, Section of Genetic Oncology, University of Pisa - Università di Pisa, Lund University Hospital, Oncological Centre, Karolinska University Hospital [Stockholm], Department of Clinical and Experimental Medicine, Linköping University (LIU), Sahlgrenska University Hospital [Gothenburg], Department of Population Sciences, Beckman Research Institute of the City of Hope, UCSF Cancer Risk Program and Departments of Medicine and Epidemiology and Biostatistics, University of California [San Francisco] (UCSF), Department of Cancer Prevention and Control, Roswell Park Cancer Institute [Buffalo], Women's Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cancer Prevention Institute of California, Fox Chase Cancer Center, Department of Oncological Sciences, University of Utah-Huntsman Cancer Institute, Genetic Epidemiology Laboratory, University of Melbourne, Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, Columbia University [New York], Department of Cancer Biology, Dana-Farber Cancer Institute [Boston], Department of Dermatology, University of Utah School of Medicine [Salt Lake City], This work was supported by Cancer Research UK grants C12292/A11174 and C1287/A10118. The research leading to these results has received funding from the European Community's Seventh Framework Programme under grant agreement n° 223175 (HEALTH-F2-2009-223175). ACA is a CR-UK Senior Cancer Research Fellow, DFE is CR-UK Principal Research Fellow., for Breast Cancer Family Registry, for EMBRACE, for Ontario Cancer Genetics Network, for SWE-BRCA, for CIMBA, European Project: 223175,EC:FP7:HEALTH,FP7-HEALTH-2007-B,COGS(2009), BMC, Ed., Collaborative Oncological Gene-environment Study - COGS - - EC:FP7:HEALTH2009-05-01 - 2014-01-31 - 223175 - VALID, University of Pennsylvania-Abramson Cancer Center, Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Università degli studi di Torino = University of Turin (UNITO), Università degli Studi di Firenze = University of Florence (UniFI), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Consortium for Genomics Technology (Cogentech)-Istituto Europeo di Oncologia [Milano] (IEO), University of Kansas Medical Center [Kansas City, KS, USA], Westfälische Wilhelms-Universität Münster = University of Münster (WWU), Julius-Maximilians-Universität Würzburg (JMU)-Institute of Human Genetics-Centre of Familial Breast and Ovarian Cancer, Normandie Université (NU)-UNICANCER-Tumorothèque de Caen Basse-Normandie (TCBN), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau, Georgetown University [Washington] (GU), Università degli Studi di Padova = University of Padua (Unipd), University of Pennsylvania-University of Pennsylvania, University of California (UC)-University of California (UC), Rigshospital-University of Copenhagen = Københavns Universitet (UCPH), Vejle Hospital [Danemark], University of California [San Francisco] (UC San Francisco), Lee, Andrew [0000-0003-0677-0252], Pharoah, Paul [0000-0001-8494-732X], Easton, Douglas [0000-0003-2444-3247], Antoniou, Antonis [0000-0001-9223-3116], Apollo - University of Cambridge Repository, University of Cambridge [UK] ( CAM ), University of Southampton [Southampton]-University Hospital Southampton, University of Southern California ( USC ) -Keck School of Medicine [Los Angeles], Memorial Sloan-Kettering Cancer Center-Weill Medical College of Cornell University [New York], National Cancer Institute ( NIH ), Centre Léon Bérard [Lyon]-Hospices Civils de Lyon ( HCL ), Centre de Recherche en Cancérologie de Lyon ( CRCL ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre Léon Bérard [Lyon]-Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Instituto de investigación sanitaria de Aragón ( IIS ), National Center for Scientific Research 'Demokritos' ( NCSR ) -IRRP, IFOM, University of Florence, Università degli Studi di Roma 'La Sapienza' [Rome], Deutsches Krebsforschungszentrum ( DKFZ ), Erasmus University Medical Center-Family Cancer Clinic, University Medical Center Utrecht, Academic Medical Center [Amsterdam] ( AMC ), University of Amsterdam [Amsterdam] ( UvA ) -University of Amsterdam [Amsterdam] ( UvA ), Queen Mary University of London ( QMUL ), Sheffield Children's Hospital, University Hospitals of Leicester, Great Ormond Street Hospital for Children [London] ( GOSH ), University of Kansas Medical Center, Institute for Medical Informatics, Statistics and Epidemiology [Leipzig] ( IMISE ), University of Leipzig, University Hospital Ulm, Hannover Medical School [Hannover] ( MHH ), Westfälische Wilhelms-Universität Münster ( WWU ), University Wurzburg-Institute of Human Genetics-Centre of Familial Breast and Ovarian Cancer, University Regensburg, INSTITUT CURIE, Université Paris 13 ( UP13 ) -Assistance publique - Hôpitaux de Paris (AP-HP)-Hôpital Avicenne, Centre Hospitalier Universitaire Clermont-Ferrand, Centre François Baclesse, Hôpital Bretonneau-CHRU Tours, Centre Hospitalier Régional Universitaire [Montpellier] ( CHRU Montpellier ) -Hôpital Arnaud de Villeneuve, Validation et identification de nouvelles cibles en oncologie ( VINCO ), Université Bordeaux Segalen - Bordeaux 2-Institut Bergonié - CRLCC Bordeaux-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Unité de génétique et biologie des cancers ( U830 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut Curie-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Laval University [Québec], University of Padua and Istituto Oncologico Veneto IOV - IRCCS, University of Pennsylvania Perelman School of Medicine, University of California at Los Angeles [Los Angeles] ( UCLA ), University of Texas at Houston [Houston] ( UTHealth ) -Harold C. Simmons Comprehensive Cancer Center, University of Texas Health Science, Medical University of Vienna, Mount Sinai Hospital, The Ohio State University Comprehensive Cancer Center, University of Copenhagen ( KU ) -Rigshospital, University of Pisa [Pisa], Linköping University ( LIU ), Sahlgrenska University Hospital, the Beckman Research Institute of the City of Hope, University of California [San Francisco] ( UCSF ), European Project : 223175,EC:FP7:HEALTH,FP7-HEALTH-2007-B,COGS ( 2009 ), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Avicenne [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris 13 (UP13), Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut Bergonié [Bordeaux], UNICANCER-UNICANCER-Université Bordeaux Segalen - Bordeaux 2, Human Genetics, Universiteit Leiden-Universiteit Leiden, Nottingham University Hospitals NHS Trust (NUH), Universität Leipzig, Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E), and Roswell Park Cancer Institute [Buffalo] (RPCI)
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Risk ,Heterozygote ,endocrine system diseases ,Population ,Genes, BRCA2 ,Genes, BRCA1 ,Social Sciences ,Estrogen receptor ,Single-nucleotide polymorphism ,[SDV.CAN]Life Sciences [q-bio]/Cancer ,Breast Neoplasms ,Biology ,Polymorphism, Single Nucleotide ,[ SDV.CAN ] Life Sciences [q-bio]/Cancer ,03 medical and health sciences ,610 Medical sciences Medicine ,0302 clinical medicine ,Breast cancer ,[SDV.CAN] Life Sciences [q-bio]/Cancer ,SDG 3 - Good Health and Well-being ,Genotype ,medicine ,Humans ,Genetic Predisposition to Disease ,education ,skin and connective tissue diseases ,Estrogen Receptor Status ,Alleles ,030304 developmental biology ,Medicine(all) ,0303 health sciences ,education.field_of_study ,Samhällsvetenskap ,medicine.disease ,3. Good health ,TOX3 ,Receptors, Estrogen ,Cancer and Oncology ,030220 oncology & carcinogenesis ,Mutation ,Cancer research ,Female ,Ovarian cancer ,Receptors, Progesterone ,Research Article - Abstract
[Introduction]: Previous studies have demonstrated that common breast cancer susceptibility alleles are differentially associated with breast cancer risk for BRCA1 and/or BRCA2 mutation carriers. It is currently unknown how these alleles are associated with different breast cancer subtypes in BRCA1 and BRCA2 mutation carriers defined by estrogen (ER) or progesterone receptor (PR) status of the tumour. [Methods]: We used genotype data on up to 11,421 BRCA1 and 7,080 BRCA2 carriers, of whom 4,310 had been affected with breast cancer and had information on either ER or PR status of the tumour, to assess the associations of 12 loci with breast cancer tumour characteristics. Associations were evaluated using a retrospective cohort approach. [Results]: The results suggested stronger associations with ER-positive breast cancer than ER-negative for 11 loci in both BRCA1 and BRCA2 carriers. Among BRCA1 carriers, single nucleotide polymorphism (SNP) rs2981582 (FGFR2) exhibited the biggest difference based on ER status (per-allele hazard ratio (HR) for ER-positive = 1.35, 95% CI: 1.17 to 1.56 vs HR = 0.91, 95% CI: 0.85 to 0.98 for ER-negative, P-heterogeneity = 6.5 × 10-6). In contrast, SNP rs2046210 at 6q25.1 near ESR1 was primarily associated with ER-negative breast cancer risk for both BRCA1 and BRCA2 carriers. In BRCA2 carriers, SNPs in FGFR2, TOX3, LSP1, SLC4A7/NEK10, 5p12, 2q35, and 1p11.2 were significantly associated with ER-positive but not ER-negative disease. Similar results were observed when differentiating breast cancer cases by PR status. [Conclusions]: The associations of the 12 SNPs with risk for BRCA1 and BRCA2 carriers differ by ER-positive or ER-negative breast cancer status. The apparent differences in SNP associations between BRCA1 and BRCA2 carriers, and non-carriers, may be explicable by differences in the prevalence of tumour subtypes. As more risk modifying variants are identified, incorporating these associations into breast cancer subtype-specific risk models may improve clinical management for mutation carriers.
- Published
- 2011