TY  - JOUR
A1  - van Koolwijk, Leonieke M. E.
A1  - Ramdas, Wishal D.
A1  - Ikram, M. Kamran
A1  - Jansonius, Nomdo M.
A1  - Pasutto, Francesca
A1  - Hys, Pirro G.
A1  - Macgregor, Stuart
A1  - Janssen, Sarah F.
A1  - Hewitt, Alex W.
A1  - Viswanathan, Ananth C.
A1  - ten Brink, Jacoline B.
A1  - Hosseini, S. Mohsen
A1  - Amin, Najaf
A1  - Despriet, Dominiek D. G.
A1  - Willemse-Assink, Jacqueline J. M.
A1  - Kramer, Rogier
A1  - Rivadeneira, Fernando
A1  - Struchalin, Maksim
A1  - Aulchenko, Yurii S.
A1  - Weisschuh, Nicole
A1  - Zenkel, Matthias
A1  - Mardin, Christian Y.
A1  - Gramer, Eugen
A1  - Welge-Lüssen, Ulrich
A1  - Montgomery, Grant W.
A1  - Carbonaro, Francis
A1  - Young, Terri L.
A1  - Bellenguez, Céline
A1  - McGuffin, Peter
A1  - Foster, Paul J.
A1  - Topouzis, Fotis
A1  - Mitchell, Paul
A1  - Wang, Jie Jin
A1  - Wong, Tien Y.
A1  - Czudowska, Monika A.
A1  - Hofman, Albert
A1  - Uitterlinden, Andre G.
A1  - Wolfs, Roger C. W.
A1  - de Jong, Paulus T. V. M.
A1  - Oostra, Ben A.
A1  - Paterson, Andrew D.
A1  - Mackey, David A.
A1  - Bergen, Arthur A. B.
A1  - Reis, Andre
A1  - Hammond, Christopher J.
A1  - Vingerling, Johannes R.
A1  - Lemij, Hans G.
A1  - Klaver, Caroline C. W.
A1  - van Duijn, Cornelia M.
T1  - Common Genetic Determinants of Intraocular Pressure and Primary Open-Angle Glaucoma
JF  - PLoS Genetics
N2  - Intraocular pressure (IOP) is a highly heritable risk factor for primary open-angle glaucoma and is the only target for current glaucoma therapy. The genetic factors which determine IOP are largely unknown. We performed a genome-wide association study for IOP in 11,972 participants from 4 independent population-based studies in The Netherlands. We replicated our findings in 7,482 participants from 4 additional cohorts from the UK, Australia, Canada, and the Wellcome Trust Case-Control Consortium 2/Blue Mountains Eye Study. IOP was significantly associated with rs11656696, located in GAS7 at 17p13.1 (p = 1.4 x 10\(^{-8}\)), and with rs7555523, located in TMCO1 at 1q24.1 (p = 1.6 x 10\(^{-8}\)). In a meta-analysis of 4 case-control studies (total N = 1,432 glaucoma cases), both variants also showed evidence for association with glaucoma (p = 2.4 x 10\(^{-2}\) for rs11656696 and p = 9.1 x 10\(^{-4}\) for rs7555523). GAS7 and TMCO1 are highly expressed in the ciliary body and trabecular meshwork as well as in the lamina cribrosa, optic nerve, and retina. Both genes functionally interact with known glaucoma disease genes. These data suggest that we have identified two clinically relevant genes involved in IOP regulation.
KW  - expression
KW  - goldmann applanation tonometer
KW  - central corneal thickness
KW  - genome-wide scan
KW  - beaver-dam eye
KW  - to-disc ratio
KW  - onset
KW  - association
KW  - identification
KW  - population
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-131378
VL  - 8
IS  - 5
ER  - 
TY  - JOUR
A1  - Manchia, Mirko
A1  - Adli, Mazda
A1  - Akula, Nirmala
A1  - Arda, Raffaella
A1  - Aubry, Jean-Michel
A1  - Backlund, Lena
A1  - Banzato, Claudio E. M.
A1  - Baune, Bernhard T.
A1  - Bellivier, Frank
A1  - Bengesser, Susanne
A1  - Biernacka, Joanna M.
A1  - Brichant-Petitjean, Clara
A1  - Bui, Elise
A1  - Calkin, Cynthia V.
A1  - Cheng, Andrew Tai Ann
A1  - Chillotti, Caterina
A1  - Cichon, Sven
A1  - Clark, Scott
A1  - Czerski, Piotr M.
A1  - Dantas, Clarissa
A1  - Del Zompo, Maria
A1  - DePaulo, J. Raymond
A1  - Detera-Wadleigh, Sevilla D.
A1  - Etain, Bruno
A1  - Falkai, Peter
A1  - Frisén, Louise
A1  - Frye, Mark A.
A1  - Fullerton, Jan
A1  - Gard, Sébastien
A1  - Garnham, Julie
A1  - Goes, Fernando S.
A1  - Grof, Paul
A1  - Gruber, Oliver
A1  - Hashimoto, Ryota
A1  - Hauser, Joanna
A1  - Heilbronner, Urs
A1  - Hoban, Rebecca
A1  - Hou, Liping
A1  - Jamain, Stéphane
A1  - Kahn, Jean-Pierre
A1  - Kassem, Layla
A1  - Kato, Tadafumi
A1  - Kelsoe, John R.
A1  - Kittel-Schneider, Sarah
A1  - Kliwicki, Sebastian
A1  - Kuo, Po-Hsiu
A1  - Kusumi, Ichiro
A1  - Laje, Gonzalo
A1  - Lavebratt, Catharina
A1  - Leboyer, Marion
A1  - Leckband, Susan G.
A1  - López Jaramillo, Carlos A.
A1  - Maj, Mario
A1  - Malafosse, Alain
A1  - Martinsson, Lina
A1  - Masui, Takuya
A1  - Mitchell, Philip B.
A1  - Mondimore, Frank
A1  - Monteleone, Palmiero
A1  - Nallet, Audrey
A1  - Neuner, Maria
A1  - Novák, Tomás
A1  - O'Donovan, Claire
A1  - Ösby, Urban
A1  - Ozaki, Norio
A1  - Perlis, Roy H.
A1  - Pfennig, Andrea
A1  - Potash, James B.
A1  - Reich-Erkelenz, Daniela
A1  - Reif, Andreas
A1  - Reininghaus, Eva
A1  - Richardson, Sara
A1  - Rouleau, Guy A.
A1  - Rybakowski, Janusz K.
A1  - Schalling, Martin
A1  - Schofield, Peter R.
A1  - Schubert, Oliver K.
A1  - Schweizer, Barbara
A1  - Seemüller, Florian
A1  - Grigoroiu-Serbanescu, Maria
A1  - Severino, Giovanni
A1  - Seymour, Lisa R.
A1  - Slaney, Claire
A1  - Smoller, Jordan W.
A1  - Squassina, Alessio
A1  - Stamm, Thomas
A1  - Steele, Jo
A1  - Stopkova, Pavla
A1  - Tighe, Sarah K.
A1  - Tortorella, Alfonso
A1  - Turecki, Gustavo
A1  - Wray, Naomi R.
A1  - Wright, Adam
A1  - Zandi, Peter P.
A1  - Zilles, David
A1  - Bauer, Michael
A1  - Rietschel, Marcella
A1  - McMahon, Francis J.
A1  - Schulze, Thomas G.
A1  - Alda, Martin
T1  - Assessment of Response to Lithium Maintenance Treatment in Bipolar Disorder: A Consortium on Lithium Genetics (ConLiGen) Report
JF  - PLoS ONE
N2  - Objective: The assessment of response to lithium maintenance treatment in bipolar disorder (BD) is complicated by variable length of treatment, unpredictable clinical course, and often inconsistent compliance. Prospective and retrospective methods of assessment of lithium response have been proposed in the literature. In this study we report the key phenotypic measures of the "Retrospective Criteria of Long-Term Treatment Response in Research Subjects with Bipolar Disorder" scale currently used in the Consortium on Lithium Genetics (ConLiGen) study. 
Materials and Methods: Twenty-nine ConLiGen sites took part in a two-stage case-vignette rating procedure to examine inter-rater agreement [Kappa (\(\kappa\))] and reliability [intra-class correlation coefficient (ICC)] of lithium response. Annotated first-round vignettes and rating guidelines were circulated to expert research clinicians for training purposes between the two stages. Further, we analyzed the distributional properties of the treatment response scores available for 1,308 patients using mixture modeling. 
Results: Substantial and moderate agreement was shown across sites in the first and second sets of vignettes (\(\kappa\) = 0.66 and \(\kappa\) = 0.54, respectively), without significant improvement from training. However, definition of response using the A score as a quantitative trait and selecting cases with B criteria of 4 or less showed an improvement between the two stages (\(ICC_1 = 0.71\) and \(ICC_2 = 0.75\), respectively). Mixture modeling of score distribution indicated three subpopulations (full responders, partial responders, non responders). 
Conclusions: We identified two definitions of lithium response, one dichotomous and the other continuous, with moderate to substantial inter-rater agreement and reliability. Accurate phenotypic measurement of lithium response is crucial for the ongoing ConLiGen pharmacogenomic study.
KW  - age
KW  - observer agreement
KW  - prophylactic lithium
KW  - mapping susceptibility genes
KW  - mood disorders
KW  - onset
KW  - association
KW  - reliability
KW  - morality
KW  - illness
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-130938
VL  - 8
IS  - 6
ER  - 
TY  - JOUR
A1  - Blein, Sophie
A1  - Bardel, Claire
A1  - Danjean, Vincent
A1  - McGuffog, Lesley
A1  - Healay, Sue
A1  - Barrowdale, Daniel
A1  - Lee, Andrew
A1  - Dennis, Joe
A1  - Kuchenbaecker, Karoline B.
A1  - Soucy, Penny
A1  - Terry, Mary Beth
A1  - Chung, Wendy K.
A1  - Goldgar, David E.
A1  - Buys, Saundra S.
A1  - Janavicius, Ramunas
A1  - Tihomirova, Laima
A1  - Tung, Nadine
A1  - Dorfling, Cecilia M.
A1  - van Rensburg, Elizabeth J.
A1  - Neuhausen, Susan L.
A1  - Ding, Yuan Chun
A1  - Gerdes, Anne-Marie
A1  - Ejlertsen, Bent
A1  - Nielsen, Finn C.
A1  - Hansen, Thomas V. O.
A1  - Osorio, Ana
A1  - Benitez, Javier
A1  - Andreas Conejero, Raquel
A1  - Segota, Ena
A1  - Weitzel, Jeffrey N.
A1  - Thelander, Margo
A1  - Peterlongo, Paolo
A1  - Radice, Paolo
A1  - Pensotti, Valeria
A1  - Dolcetti, Riccardo
A1  - Bonanni, Bernardo
A1  - Peissel, Bernard
A1  - Zaffaroni, Daniela
A1  - Scuvera, Giulietta
A1  - Manoukian, Siranoush
A1  - Varesco, Liliana
A1  - Capone, Gabriele L.
A1  - Papi, Laura
A1  - Ottini, Laura
A1  - Yannoukakos, Drakoulis
A1  - Konstantopoulou, Irene
A1  - Garber, Judy
A1  - Hamann, Ute
A1  - Donaldson, Alan
A1  - Brady, Angela
A1  - Brewer, Carole
A1  - Foo, Claire
A1  - Evans, D. Gareth
A1  - Frost, Debra
A1  - Eccles, Diana
A1  - Douglas, Fiona
A1  - Cook, Jackie
A1  - Adlard, Julian
A1  - Barwell, Julian
A1  - Walker, Lisa
A1  - Izatt, Louise
A1  - Side, Lucy E.
A1  - Kennedy, M. John
A1  - Tischkowitz, Marc
A1  - Rogers, Mark T.
A1  - Porteous, Mary E.
A1  - Morrison, Patrick J.
A1  - Platte, Radka
A1  - Eeles, Ros
A1  - Davidson, Rosemarie
A1  - Hodgson, Shirley
A1  - Cole, Trevor
A1  - Godwin, Andrew K
A1  - Isaacs, Claudine
A1  - Claes, Kathleen
A1  - De Leeneer, Kim
A1  - Meindl, Alfons
A1  - Gehrig, Andrea
A1  - Wappenschmidt, Barbara
A1  - Sutter, Christian
A1  - Engel, Christoph
A1  - Niederacher, Dieter
A1  - Steinemann, Doris
A1  - Plendl, Hansjoerg
A1  - Kast, Karin
A1  - Rhiem, Kerstin
A1  - Ditsch, Nina
A1  - Arnold, Norbert
A1  - Varon-Mateeva, Raymonda
A1  - Schmutzler, Rita K.
A1  - Preisler-Adams, Sabine
A1  - Markov, Nadja Bogdanova
A1  - Wang-Gohrke, Shan
A1  - de Pauw, Antoine
A1  - Lefol, Cedrick
A1  - Lasset, Christine
A1  - Leroux, Dominique
A1  - Rouleau, Etienne
A1  - Damiola, Francesca
A1  - Dreyfus, Helene
A1  - Barjhoux, Laure
A1  - Golmard, Lisa
A1  - Uhrhammer, Nancy
A1  - Bonadona, Valerie
A1  - Sornin, Valerie
A1  - Bignon, Yves-Jean
A1  - Carter, Jonathan
A1  - Van Le, Linda
A1  - Piedmonte, Marion
A1  - DiSilvestro, Paul A.
A1  - de la Hoya, Miguel
A1  - Caldes, Trinidad
A1  - Nevanlinna, Heli
A1  - Aittomäki, Kristiina
A1  - Jager, Agnes
A1  - van den Ouweland, Ans M. W.
A1  - Kets, Carolien M.
A1  - Aalfs, Cora M.
A1  - van Leeuwen, Flora E.
A1  - Hogervorst, Frans B. L.
A1  - Meijers-Heijboer, Hanne E. J.
A1  - Oosterwijk, Jan C.
A1  - van Roozendaal, Kees E. P.
A1  - Rookus, Matti A.
A1  - Devilee, Peter
A1  - van der Luijt, Rob B.
A1  - Olah, Edith
A1  - Diez, Orland
A1  - Teule, Alex
A1  - Lazaro, Conxi
A1  - Blanco, Ignacio
A1  - Del Valle, Jesus
A1  - Jakubowska, Anna
A1  - Sukiennicki, Grzegorz
A1  - Gronwald, Jacek
A1  - Spurdle, Amanda B.
A1  - Foulkes, William
A1  - Olswold, Curtis
A1  - Lindor, Noralene M.
A1  - Pankratz, Vernon S.
A1  - Szabo, Csilla I.
A1  - Lincoln, Anne
A1  - Jacobs, Lauren
A1  - Corines, Marina
A1  - Robson, Mark
A1  - Vijai, Joseph
A1  - Berger, Andreas
A1  - Fink-Retter, Anneliese
A1  - Singer, Christian F.
A1  - Rappaport, Christine
A1  - Geschwantler Kaulich, Daphne
A1  - Pfeiler, Georg
A1  - Tea, Muy-Kheng
A1  - Greene, Mark H.
A1  - Mai, Phuong L.
A1  - Rennert, Gad
A1  - Imyanitov, Evgeny N.
A1  - Mulligan, Anna Marie
A1  - Glendon, Gord
A1  - Andrulis, Irene L.
A1  - Tchatchou, Andrine
A1  - Toland, Amanda Ewart
A1  - Pedersen, Inge Sokilde
A1  - Thomassen, Mads
A1  - Kruse, Torben A.
A1  - Jensen, Uffe Birk
A1  - Caligo, Maria A.
A1  - Friedman, Eitan
A1  - Zidan, Jamal
A1  - Laitman, Yael
A1  - Lindblom, Annika
A1  - Melin, Beatrice
A1  - Arver, Brita
A1  - Loman, Niklas
A1  - Rosenquist, Richard
A1  - Olopade, Olufunmilayo I.
A1  - Nussbaum, Robert L.
A1  - Ramus, Susan J.
A1  - Nathanson, Katherine L.
A1  - Domchek, Susan M.
A1  - Rebbeck, Timothy R.
A1  - Arun, Banu K.
A1  - Mitchell, Gillian
A1  - Karlan, Bethy Y.
A1  - Lester, Jenny
A1  - Orsulic, Sandra
A1  - Stoppa-Lyonnet, Dominique
A1  - Thomas, Gilles
A1  - Simard, Jacques
A1  - Couch, Fergus J.
A1  - Offit, Kenenth
A1  - Easton, Douglas F.
A1  - Chenevix-Trench, Georgia
A1  - Antoniou, Antonis C.
A1  - Mazoyer, Sylvie
A1  - Phelan, Catherine M.
A1  - Sinilnikova, Olga M.
A1  - Cox, David G.
T1  - An original phylogenetic approach identified mitochondrial haplogroup T1a1 as inversely associated with breast cancer risk in BRCA2 mutation carriers
JF  - Breast Cancer Research
N2  - Introduction: 
Individuals carrying pathogenic mutations in the BRCA1 and BRCA2 genes have a high lifetime risk of breast cancer. BRCA1 and BRCA2 are involved in DNA double-strand break repair, DNA alterations that can be caused by exposure to reactive oxygen species, a main source of which are mitochondria. Mitochondrial genome variations affect electron transport chain efficiency and reactive oxygen species production. Individuals with different mitochondrial haplogroups differ in their metabolism and sensitivity to oxidative stress. Variability in mitochondrial genetic background can alter reactive oxygen species production, leading to cancer risk. In the present study, we tested the hypothesis that mitochondrial haplogroups modify breast cancer risk in BRCA1/2 mutation carriers. 

Methods: 
We genotyped 22,214 (11,421 affected, 10,793 unaffected) mutation carriers belonging to the Consortium of Investigators of Modifiers of BRCA1/2 for 129 mitochondrial polymorphisms using the iCOGS array. Haplogroup inference and association detection were performed using a phylogenetic approach. ALTree was applied to explore the reference mitochondrial evolutionary tree and detect subclades enriched in affected or unaffected individuals. 

Results: 
We discovered that subclade T1a1 was depleted in affected BRCA2 mutation carriers compared with the rest of clade T (hazard ratio (HR) = 0.55; 95% confidence interval (CI), 0.34 to 0.88; P = 0.01). Compared with the most frequent haplogroup in the general population (that is, H and T clades), the T1a1 haplogroup has a HR of 0.62 (95% CI, 0.40 to 0.95; P = 0.03). We also identified three potential susceptibility loci, including G13708A/rs28359178, which has demonstrated an inverse association with familial breast cancer risk. 

Conclusions:
This study illustrates how original approaches such as the phylogeny-based method we used can empower classical molecular epidemiological studies aimed at identifying association or risk modification effects.
KW  - single-nucleotide polymorphisms
KW  - genetic modifiers
KW  - oxidative stress
KW  - consortium
KW  - multiple diseases
KW  - DNA
KW  - haplogroups
KW  - susceptibility
KW  - Ovarian
KW  - variants
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-145458
VL  - 17
IS  - 61
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  -