TY - JOUR A1 - Vigorito, Elena A1 - Kuchenbaecker, Karoline B. A1 - Beesley, Jonathan A1 - Adlard, Julian A1 - Agnarsson, Bjarni A. A1 - Andrulis, Irene L. A1 - Arun, Banu K. A1 - Barjhoux, Laure A1 - Belotti, Muriel A1 - Benitez, Javier A1 - Berger, Andreas A1 - Bojesen, Anders A1 - Bonanni, Bernardo A1 - Brewer, Carole A1 - Caldes, Trinidad A1 - Caligo, Maria A. A1 - Campbell, Ian A1 - Chan, Salina B. A1 - Claes, Kathleen B. M. A1 - Cohn, David E. A1 - Cook, Jackie A1 - Daly, Mary B. A1 - Damiola, Francesca A1 - Davidson, Rosemarie A1 - de Pauw, Antoine A1 - Delnatte, Capucine A1 - Diez, Orland A1 - Domchek, Susan M. A1 - Dumont, Martine A1 - Durda, Katarzyna A1 - Dworniczak, Bernd A1 - Easton, Douglas F. A1 - Eccles, Diana A1 - Ardnor, Christina Edwinsdotter A1 - Eeles, Ros A1 - Ejlertsen, Bent A1 - Ellis, Steve A1 - Evans, D. Gareth A1 - Feliubadalo, Lidia A1 - Fostira, Florentia A1 - Foulkes, William D. A1 - Friedman, Eitan A1 - Frost, Debra A1 - Gaddam, Pragna A1 - Ganz, Patricia A. A1 - Garber, Judy A1 - Garcia-Barberan, Vanesa A1 - Gauthier-Villars, Marion A1 - Gehrig, Andrea A1 - Gerdes, Anne-Marie A1 - Giraud, Sophie A1 - Godwin, Andrew K. A1 - Goldgar, David E. A1 - Hake, Christopher R. A1 - Hansen, Thomas V. O. A1 - Healey, Sue A1 - Hodgson, Shirley A1 - Hogervorst, Frans B. L. A1 - Houdayer, Claude A1 - Hulick, Peter J. A1 - Imyanitov, Evgeny N. A1 - Isaacs, Claudine A1 - Izatt, Louise A1 - Izquierdo, Angel A1 - Jacobs, Lauren A1 - Jakubowska, Anna A1 - Janavicius, Ramunas A1 - Jaworska-Bieniek, Katarzyna A1 - Jensen, Uffe Birk A1 - John, Esther M. A1 - Vijai, Joseph A1 - Karlan, Beth Y. A1 - Kast, Karin A1 - Khan, Sofia A1 - Kwong, Ava A1 - Laitman, Yael A1 - Lester, Jenny A1 - Lesueur, Fabienne A1 - Liljegren, Annelie A1 - Lubinski, Jan A1 - Mai, Phuong L. A1 - Manoukian, Siranoush A1 - Mazoyer, Sylvie A1 - Meindl, Alfons A1 - Mensenkamp, Arjen R. A1 - Montagna, Marco A1 - Nathanson, Katherine L. A1 - Neuhausen, Susan L. A1 - Nevanlinna, Heli A1 - Niederacher, Dieter A1 - Olah, Edith A1 - Olopade, Olufunmilayo I. A1 - Ong, Kai-ren A1 - Osorio, Ana A1 - Park, Sue Kyung A1 - Paulsson-Karlsson, Ylva A1 - Pedersen, Inge Sokilde A1 - Peissel, Bernard A1 - Peterlongo, Paolo A1 - Pfeiler, Georg A1 - Phelan, Catherine M. A1 - Piedmonte, Marion A1 - Poppe, Bruce A1 - Pujana, Miquel Angel A1 - Radice, Paolo A1 - Rennert, Gad A1 - Rodriguez, Gustavo C. A1 - Rookus, Matti A. A1 - Ross, Eric A. A1 - Schmutzler, Rita Katharina A1 - Simard, Jacques A1 - Singer, Christian F. A1 - Slavin, Thomas P. A1 - Soucy, Penny A1 - Southey, Melissa A1 - Steinemann, Doris A1 - Stoppa-Lyonnet, Dominique A1 - Sukiennicki, Grzegorz A1 - Sutter, Christian A1 - Szabo, Csilla I. A1 - Tea, Muy-Kheng A1 - Teixeira, Manuel R. A1 - Teo, Soo-Hwang A1 - Terry, Mary Beth A1 - Thomassen, Mads A1 - Tibiletti, Maria Grazia A1 - Tihomirova, Laima A1 - Tognazzo, Silvia A1 - van Rensburg, Elizabeth J. A1 - Varesco, Liliana A1 - Varon-Mateeva, Raymonda A1 - Vratimos, Athanassios A1 - Weitzel, Jeffrey N. A1 - McGuffog, Lesley A1 - Kirk, Judy A1 - Toland, Amanda Ewart A1 - Hamann, Ute A1 - Lindor, Noralane A1 - Ramus, Susan J. A1 - Greene, Mark H. A1 - Couch, Fergus J. A1 - Offit, Kenneth A1 - Pharoah, Paul D. P. A1 - Chenevix-Trench, Georgia A1 - Antoniou, Antonis C. T1 - Fine-Scale Mapping at 9p22.2 Identifies Candidate Causal Variants That Modify Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers JF - PLoS ONE N2 - 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 2× 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 × 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. KW - fine-scale mapping KW - ovarian cancer KW - genetics KW - BRCA1 KW - BRCA2 Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-166869 VL - 11 IS - 7 ER - TY - JOUR A1 - Osorio, Ana A1 - Milne, Roger L. A1 - Kuchenbaecker, Karoline A1 - Vaclová, Tereza A1 - Pita, Guillermo A1 - Alonso, Rosario A1 - Peterlongo, Paolo A1 - Blanco, Ignacio A1 - de la Hoya, Miguel A1 - Duran, Mercedes A1 - Diez, Orland A1 - Ramón y Cajal, Teresa A1 - Konstantopoulou, Irene A1 - Martínez-Bouzas, Christina A1 - Conejero, Raquel Andrés A1 - Soucy, Penny A1 - McGuffog, Lesley A1 - Barrowdale, Daniel A1 - Lee, Andrew A1 - Arver, Brita A1 - Rantala, Johanna A1 - Loman, Niklas A1 - Ehrencrona, Hans A1 - Olopade, Olufunmilayo I. A1 - Beattie, Mary S. A1 - Domchek, Susan M. A1 - Nathanson, Katherine A1 - Rebbeck, Timothy R. A1 - Arun, Banu K. A1 - Karlan, Beth Y. A1 - Walsh, Christine A1 - Lester, Jenny A1 - John, Esther M. A1 - Whittemore, Alice S. A1 - Daly, Mary B. A1 - Southey, Melissa A1 - Hopper, John A1 - Terry, Mary B. A1 - Buys, Saundra S. A1 - Janavicius, Ramunas A1 - Dorfling, Cecilia M. A1 - van Rensburg, Elizabeth J. A1 - Steele, Linda A1 - Neuhausen, Susan L. A1 - Ding, Yuan Chun A1 - Hansen, Thomas V. O. A1 - Jønson, Lars A1 - Ejlertsen, Bent A1 - Gerdes, Anne-Marie A1 - Infante, Mar A1 - Herráez, Belén A1 - Moreno, Leticia Thais A1 - Weitzel, Jeffrey N. A1 - Herzog, Josef A1 - Weeman, Kisa A1 - Manoukian, Siranoush A1 - Peissel, Bernard A1 - Zaffaroni, Daniela A1 - Scuvera, Guilietta A1 - Bonanni, Bernardo A1 - Mariette, Frederique A1 - Volorio, Sara A1 - Viel, Alessandra A1 - Varesco, Liliana A1 - Papi, Laura A1 - Ottini, Laura A1 - Tibiletti, Maria Grazia A1 - Radice, Paolo A1 - Yannoukakos, Drakoulis A1 - Garber, Judy A1 - Ellis, Steve A1 - Frost, Debra A1 - Platte, Radka A1 - Fineberg, Elena A1 - Evans, Gareth A1 - Lalloo, Fiona A1 - Izatt, Louise A1 - Eeles, Ros A1 - Adlard, Julian A1 - Davidson, Rosemarie A1 - Cole, Trevor A1 - Eccles, Diana A1 - Cook, Jackie A1 - Hodgson, Shirley A1 - Brewer, Carole A1 - Tischkowitz, Marc A1 - Douglas, Fiona A1 - Porteous, Mary A1 - Side, Lucy A1 - Walker, Lisa A1 - Morrison, Patrick A1 - Donaldson, Alan A1 - Kennedy, John A1 - Foo, Claire A1 - Godwin, Andrew K. A1 - Schmutzler, Rita Katharina A1 - Wappenschmidt, Barbara A1 - Rhiem, Kerstin A1 - Engel, Christoph A1 - Meindl, Alftons A1 - Ditsch, Nina A1 - Arnold, Norbert A1 - Plendl, Hans Jörg A1 - Niederacher, Dieter A1 - Sutter, Christian A1 - Wang-Gohrke, Shan A1 - Steinemann, Doris A1 - Preisler-Adams, Sabine A1 - Kast, Karin A1 - Varon-Mateeva, Raymonda A1 - Gehrig, Andrea A1 - Stoppa-Lyonnet, Dominique A1 - Sinilnikova, Olga M. A1 - Mazoyer, Sylvie A1 - Damiola, Francesca A1 - Poppe, Bruce A1 - Claes, Kathleen A1 - Piedmonte, Marion A1 - Tucker, Kathy A1 - Backes, Floor A1 - Rodríguez, Gustavo A1 - Brewster, Wendy A1 - Wakeley, Katie A1 - Rutherford, Thomas A1 - Caldés, Trinidad A1 - Nevanlinna, Heli A1 - Aittomäki, Kristiina A1 - Rookus, Matti A. A1 - van Os, Theo A. M. A1 - van der Kolk, Lizet A1 - de Lange, J. L. A1 - Meijers-Heijboer, Hanne E. J. A1 - van der Hout, A. H. A1 - van Asperen, Christi J. A1 - Goméz Garcia, Encarna B. A1 - Encarna, B. A1 - Hoogerbrugge, Nicoline A1 - Collée, J. Margriet A1 - van Deurzen, Carolien H. M. A1 - van der Luijt, Rob B. A1 - Devilee, Peter A1 - Olah, Edith A1 - Lázaro, Conxi A1 - Teulé, Alex A1 - Menéndez, Mireia A1 - Jakubowska, Anna A1 - Cybulski, Cezary A1 - Gronwald, Jecek A1 - Lubinski, Jan A1 - Durda, Katarzyna A1 - Jaworska-Bieniek, Katarzyna A1 - Johannsson, Oskar Th. A1 - Maugard, Christine A1 - Montagna, Marco A1 - Tognazzo, Silvia A1 - Teixeira, Manuel R. A1 - Healey, Sue A1 - Olswold, Curtis A1 - Guidugli, Lucia A1 - Lindor, Noralane A1 - Slager, Susan A1 - Szabo, Csilla I. A1 - Vijai, Joseph A1 - Robson, Mark A1 - Kauff, Noah A1 - Zhang, Liying A1 - Rau-Murthy, Rohini A1 - Fink-Retter, Anneliese A1 - Singer, Christine F. A1 - Rappaport, Christine A1 - Kaulich, Daphne Geschwantler A1 - Pfeiler, Georg A1 - Tea, Muy-Kheng A1 - Berger, Andreas A1 - Phelan, Catherine M. A1 - Greene, Mark H. A1 - Mai, Phuong L. A1 - Lejbkowicz, Flavio A1 - Andrulis, Irene A1 - Mulligan, Anna Marie A1 - Glendon, Gord A1 - Toland, Amanda Ewart A1 - Bojesen, Anders A1 - Pedersen, Inge Sokilde A1 - Sunde, Lone A1 - Thomassen, Mads A1 - Kruse, Torben A. A1 - Jensen, Uffe Birk A1 - Friedman, Eitan A1 - Laitman, Yeal A1 - Shimon, Shanie Paluch A1 - Simard, Jaques A1 - Easton, Douglas F. A1 - Offit, Kenneth A1 - Couch, Fergus J. A1 - Chenevix-Trench, Georgia A1 - Antoniou, Antonis C. A1 - Benitez, Javier T1 - DNA Glycosylases Involved in Base Excision Repair May Be Associated with Cancer Risk in BRCA1 and BRCA2 Mutation Carriers JF - PLOS Genetics N2 - Single Nucleotide Polymorphisms (SNPs) in genes involved in the DNA Base Excision Repair (BER) pathway could be associated with cancer risk in carriers of mutations in the high-penetrance susceptibility genes BRCA1 and BRCA2, given the relation of synthetic lethality that exists between one of the components of the BER pathway, PARP1 (poly ADP ribose polymerase), and both BRCA1 and BRCA2. In the present study, we have performed a comprehensive analysis of 18 genes involved in BER using a tagging SNP approach in a large series of BRCA1 and BRCA2 mutation carriers. 144 SNPs were analyzed in a two stage study involving 23,463 carriers from the CIMBA consortium (the Consortium of Investigators of Modifiers of BRCA1 and BRCA2). Eleven SNPs showed evidence of association with breast and/or ovarian cancer at p<0.05 in the combined analysis. Four of the five genes for which strongest evidence of association was observed were DNA glycosylases. The strongest evidence was for rs1466785 in the NEIL2 (endonuclease VIII-like 2) gene (HR: 1.09, 95% CI (1.03-1.16), p = 2.7x10(-3)) for association with breast cancer risk in BRCA2 mutation carriers, and rs2304277 in the OGG1 (8-guanine DNA glycosylase) gene, with ovarian cancer risk in BRCA1 mutation carriers (HR: 1.12 95% CI: 1.03-1.21, p = 4.8x10(-3)). DNA glycosylases involved in the first steps of the BER pathway may be associated with cancer risk in BRCA1/2 mutation carriers and should be more comprehensively studied. KW - single-nucleotide polymorphisms KW - breast cancer KW - ovarian cancer KW - genetic modifiers KW - common variants KW - NEIL2 KW - OGG1 KW - investigators KW - consortium KW - damage Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-116820 SN - 1553-7404 VL - 4 IS - e1004256 ER - TY - JOUR A1 - Kiryluk, Krzysztof A1 - Yifu, Li A1 - Sanna-Cherchi, Simone A1 - Rohanizadegan, Mersedeh A1 - Suzuki, Hitoshi A1 - Eitner, Frank A1 - Snyder, Holly J. A1 - Choi, Murim A1 - Hou, Ping A1 - Scolari, Francesco A1 - Izzi, Claudia A1 - Gigante, Maddalena A1 - Gesualdo, Loreto A1 - Savoldi, Silvana A1 - Amoroso, Antonio A1 - Cusi, Daniele A1 - Zamboli, Pasquale A1 - Julian, Bruce A. A1 - Novak, Jan A1 - Wyatt, Robert J. A1 - Mucha, Krzysztof A1 - Perola, Markus A1 - Kristiansson, Kati A1 - Viktorin, Alexander A1 - Magnusson, Patrik K. A1 - Thorleifsson, Gudmar A1 - Thorsteinsdottir, Unnur A1 - Stefansson, Kari A1 - Boland, Anne A1 - Metzger, Marie A1 - Thibaudin, Lise A1 - Wanner, Christoph A1 - Jager, Kitty J. A1 - Goto, Shin A1 - Maixnerova, Dita A1 - Karnib, Hussein H. A1 - Nagy, Judit A1 - Panzer, Ulf A1 - Xie, Jingyuan A1 - Chen, Nan A1 - Tesar, Vladimir A1 - Narita, Ichiei A1 - Berthoux, Francois A1 - Floege, Jürgen A1 - Stengel, Benedicte A1 - Zhang, Hong A1 - Lifton, Richard P. A1 - Gharavi, Ali G. T1 - Geographic Differences in Genetic Susceptibility to IgA Nephropathy: GWAS Replication Study and Geospatial Risk Analysis JF - PLoS Genetics N2 - IgA nephropathy (IgAN), major cause of kidney failure worldwide, is common in Asians, moderately prevalent in Europeans, and rare in Africans. It is not known if these differences represent variation in genes, environment, or ascertainment. In a recent GWAS, we localized five IgAN susceptibility loci on Chr.6p21 (HLA-DQB1/DRB1, PSMB9/TAP1, and DPA1/DPB2 loci), Chr.1q32 (CFHR3/R1 locus), and Chr.22q12 (HORMAD2 locus). These IgAN loci are associated with risk of other immune-mediated disorders such as type I diabetes, multiple sclerosis, or inflammatory bowel disease. We tested association of these loci in eight new independent cohorts of Asian, European, and African-American ancestry (N = 4,789), followed by meta-analysis with risk-score modeling in 12 cohorts (N = 10,755) and geospatial analysis in 85 world populations. Four susceptibility loci robustly replicated and all five loci were genome-wide significant in the combined cohort (P = 5x10\(^{-32}\) 3x10\(^{-10}\), with heterogeneity detected only at the PSMB9/TAP1 locus (I\(^{-2}\) = 0.60). Conditional analyses identified two new independent risk alleles within the HLA-DQB1/DRB1 locus, defining multiple risk and protective haplotypes within this interval. We also detected a significant genetic interaction, whereby the odds ratio for the HORMAD2 protective allele was reversed in homozygotes for a CFHR3/R1 deletion (P = 2.5x10\(^{-4}\)). A seven-SNP genetic risk score, which explained 4.7% of overall IgAN risk, increased sharply with Eastward and Northward distance from Africa (r = 0.30, P = 3x10\(^{-128}\)). This model paralleled the known East-West gradient in disease risk. Moreover, the prediction of a South-North axis was confirmed by registry data showing that the prevalence of IgAN-attributable kidney failure is increased in Northern Europe, similar to multiple sclerosis and type I diabetes. Variation at IgAN susceptibility loci correlates with differences in disease prevalence among world populations. These findings inform genetic, biological, and epidemiological investigations of IgAN and permit cross-comparison with other complex traits that share genetic risk loci and geographic patterns with IgAN. KW - linkage KW - genome-wide association KW - multiple sclerosis KW - renal disease KW - New mexico KW - recombination hotspot KW - italian population KW - natural history KW - HLA KW - glomerulonephritis Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-130195 VL - 8 IS - 6 ER - TY - JOUR A1 - Silvestri, Valentina A1 - Barrowdale, Daniel A1 - Mulligan, Anna Marie A1 - Neuhausen, Susan L. A1 - Fox, Stephen A1 - Karlan, Beth Y. A1 - Mitchell, Gillian A1 - James, Paul A1 - Thull, Darcy L. A1 - Zorn, Kristin K. A1 - Carter, Natalie J. A1 - Nathanson, Katherine L. A1 - Domchek, Susan M. A1 - Rebbeck, Timothy R. A1 - Ramus, Susan J. A1 - Nussbaum, Robert L. A1 - Olopade, Olufunmilayo I. A1 - Rantala, Johanna A1 - Yoon, Sook-Yee A1 - Caligo, Maria A. A1 - Spugnesi, Laura A1 - Bojesen, Anders A1 - Pedersen, Inge Sokilde A1 - Thomassen, Mads A1 - Jensen, Uffe Birk A1 - Toland, Amanda Ewart A1 - Senter, Leigha A1 - Andrulis, Irene L. A1 - Glendon, Gord A1 - Hulick, Peter J. A1 - Imyanitov, Evgeny N. A1 - Greene, Mark H. A1 - Mai, Phuong L. A1 - Singer, Christian F. A1 - Rappaport-Fuerhauser, Christine A1 - Kramer, Gero A1 - Vijai, Joseph A1 - Offit, Kenneth A1 - Robson, Mark A1 - Lincoln, Anne A1 - Jacobs, Lauren A1 - Machackova, Eva A1 - Foretova, Lenka A1 - Navratilova, Marie A1 - Vasickova, Petra A1 - Couch, Fergus J. A1 - Hallberg, Emily A1 - Ruddy, Kathryn J. A1 - Sharma, Priyanka A1 - Kim, Sung-Won A1 - Teixeira, Manuel R. A1 - Pinto, Pedro A1 - Montagna, Marco A1 - Matricardi, Laura A1 - Arason, Adalgeir A1 - Johannsson, Oskar Th A1 - Barkardottir, Rosa B. A1 - Jakubowska, Anna A1 - Lubinski, Jan A1 - Izquierdo, Angel A1 - Pujana, Miguel Angel A1 - Balmaña, Judith A1 - Diez, Orland A1 - Ivady, Gabriella A1 - Papp, Janos A1 - Olah, Edith A1 - Kwong, Ava A1 - Nevanlinna, Heli A1 - Aittomäki, Kristiina A1 - Segura, Pedro Perez A1 - Caldes, Trinidad A1 - Van Maerken, Tom A1 - Poppe, Bruce A1 - Claes, Kathleen B. M. A1 - Isaacs, Claudine A1 - Elan, Camille A1 - Lasset, Christine A1 - Stoppa-Lyonnet, Dominique A1 - Barjhoux, Laure A1 - Belotti, Muriel A1 - Meindl, Alfons A1 - Gehrig, Andrea A1 - Sutter, Christian A1 - Engel, Christoph A1 - Niederacher, Dieter A1 - Steinemann, Doris A1 - Hahnen, Eric A1 - Kast, Karin A1 - Arnold, Norbert A1 - Varon-Mateeva, Raymonda A1 - Wand, Dorothea A1 - Godwin, Andrew K. A1 - Evans, D. Gareth A1 - Frost, Debra A1 - Perkins, Jo A1 - Adlard, Julian A1 - Izatt, Louise A1 - Platte, Radka A1 - Eeles, Ros A1 - Ellis, Steve A1 - Hamann, Ute A1 - Garber, Judy A1 - Fostira, Florentia A1 - Fountzilas, George A1 - Pasini, Barbara A1 - Giannini, Giuseppe A1 - Rizzolo, Piera A1 - Russo, Antonio A1 - Cortesi, Laura A1 - Papi, Laura A1 - Varesco, Liliana A1 - Palli, Domenico A1 - Zanna, Ines A1 - Savarese, Antonella A1 - Radice, Paolo A1 - Manoukian, Siranoush A1 - Peissel, Bernard A1 - Barile, Monica A1 - Bonanni, Bernardo A1 - Viel, Alessandra A1 - Pensotti, Valeria A1 - Tommasi, Stefania A1 - Peterlongo, Paolo A1 - Weitzel, Jeffrey N. A1 - Osorio, Ana A1 - Benitez, Javier A1 - McGuffog, Lesley A1 - Healey, Sue A1 - Gerdes, Anne-Marie A1 - Ejlertsen, Bent A1 - Hansen, Thomas V. O. A1 - Steele, Linda A1 - Ding, Yuan Chun A1 - Tung, Nadine A1 - Janavicius, Ramunas A1 - Goldgar, David E. A1 - Buys, Saundra S. A1 - Daly, Mary B. A1 - Bane, Anita A1 - Terry, Mary Beth A1 - John, Esther M. A1 - Southey, Melissa A1 - Easton, Douglas F. A1 - Chenevix-Trench, Georgia A1 - Antoniou, Antonis C. A1 - Ottini, Laura T1 - Male breast cancer in BRCA1 and BRCA2 mutation carriers: pathology data from the Consortium of Investigators of Modifiers of BRCA1/2 JF - Breast Cancer Research N2 - Background BRCA1 and, more commonly, BRCA2 mutations are associated with increased risk of male breast cancer (MBC). However, only a paucity of data exists on the pathology of breast cancers (BCs) in men with BRCA1/2 mutations. Using the largest available dataset, we determined whether MBCs arising in BRCA1/2 mutation carriers display specific pathologic features and whether these features differ from those of BRCA1/2 female BCs (FBCs). Methods We characterised the pathologic features of 419 BRCA1/2 MBCs and, using logistic regression analysis, contrasted those with data from 9675 BRCA1/2 FBCs and with population-based data from 6351 MBCs in the Surveillance, Epidemiology, and End Results (SEER) database. Results Among BRCA2 MBCs, grade significantly decreased with increasing age at diagnosis (P = 0.005). Compared with BRCA2 FBCs, BRCA2 MBCs were of significantly higher stage (P for trend = 2 × 10−5) and higher grade (P for trend = 0.005) and were more likely to be oestrogen receptor–positive [odds ratio (OR) 10.59; 95 % confidence interval (CI) 5.15–21.80] and progesterone receptor–positive (OR 5.04; 95 % CI 3.17–8.04). With the exception of grade, similar patterns of associations emerged when we compared BRCA1 MBCs and FBCs. BRCA2 MBCs also presented with higher grade than MBCs from the SEER database (P for trend = 4 × 10−12). Conclusions On the basis of the largest series analysed to date, our results show that BRCA1/2 MBCs display distinct pathologic characteristics compared with BRCA1/2 FBCs, and we identified a specific BRCA2-associated MBC phenotype characterised by a variable suggesting greater biological aggressiveness (i.e., high histologic grade). These findings could lead to the development of gender-specific risk prediction models and guide clinical strategies appropriate for MBC management. KW - Male breast cancer KW - BRCA1/2 KW - Pathology KW - Histologic grade KW - Genotype–phenotype correlations Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164769 VL - 18 IS - 15 ER -