1. Data from Pathology of Breast and Ovarian Cancers among BRCA1 and BRCA2 Mutation Carriers: Results from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA)
- Author
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Antonis C. Antoniou, Douglas F. Easton, Georgia Chenevix-Trench, Beth Karlan, Christine Walsh, Jenny Gross, Kate Nathanson, Simon A. Gayther, Lara Sucheston, Kunle Odunsi, Mary Beattie, Robert Nussbaum, Susan L. Neuhausen, Linda Steele, Karin Henriksson, Anna von Wachenfeld, Johanna Rantala, Paolo Aretini, Maria Caligo, Torben Kruse, Anne-Marie Gerdes, Mads Thomassen, Kevin Sweet, Leigha Senter, Amanda Ewart Toland, Evgeny Imyanitov, Anna Sokolenko, Mark H. Greene, Phuong L. Mai, Christine Rappaport, Muy-Kheng Tea, Christian F. Singer, Mia M. Gaudet, Rita Sakr, Kenneth Offit, Csilla Szabo, Noralane M. Lindor, Vernon S. Pankratz, Zachary Fredericksen, Xianshu Wang, Judy E. Garber, Nadine Tung, Wendy Rubinstein, Timothy R. Rebbeck, Stephen Fox, Max Yan, Emma D'Andrea, Simona Agata, Marco Montagna, Jacques Simard, Martine Dumont, Rosa B. Barkardottir, Adalgeir Arason, Bjarni A. Agnarsson, Joan Brunet, Conxi Lazaro, Ignacio Blanco, Kristiina Aittomäki, Päivi Heikkilä, Tuomas Heikkinen, Carmen Cañadas, Miguel de la Hoya, Trinidad Caldes, Beth N. Peshkin, Claudine Isaacs, Laure Barjhoux, Muriel Belotti, Dominique Stoppa-Lyonnet, Heidrun Gevensleben, Ines Schönbuchner, Raymonda Varon-Mateeva, Sabine Preisler-Adams, Doroteha Gadzicki, Helmut Deissler, Christian Sutter, Dieter Niederacher, Norbert Arnold, Karin Kast, Alfons Meindl, Barbara Wappenschmidt, Rita K. Schmutzler, Andrew K. Godwin, JoEllen Weaver, Catherine Houghton, Lucy E. Side, Mark T. Rogers, Lisa Walker, Carole Brewer, D. Gareth Evans, Debra Frost, Susan Peock, Rob B. van der Luijt, Mieke Kriege, Frans B. Hogervorst, Muhammad U. Rashid, Ute Hamann, Paolo Radice, Laura Ottini, Anna Laura Putignano, Riccardo Dolcetti, Barbara Pasini, Sara Volorio, Monica Barile, Bernard Peissel, Siranoush Manoukian, Javier Benítez, Alexandra Stavropoulou, Ana Osorio, Finn C. Nielsen, Thomas V. O. Hansen, Laima Tihomirova, Ramunas Janavicius, Esther M. John, Frances O'Malley, David Goldgar, Mary Beth Terry, Melissa C. Southey, Olga M. Sinilnikova, Sue Healey, Lesley McGuffog, Christoph Engel, Fergus J. Couch, Anna Marie Mulligan, Mark Sherman, Mark Robson, Amanda Spurdle, Susan J. Ramus, Heli Nevanlinna, Diana Eccles, Susan M. Domchek, Irene L. Andrulis, Daniel Barrowdale, and Nasim Mavaddat
- Abstract
Background: Previously, small studies have found that BRCA1 and BRCA2 breast tumors differ in their pathology. Analysis of larger datasets of mutation carriers should allow further tumor characterization.Methods: We used data from 4,325 BRCA1 and 2,568 BRCA2 mutation carriers to analyze the pathology of invasive breast, ovarian, and contralateral breast cancers.Results: There was strong evidence that the proportion of estrogen receptor (ER)-negative breast tumors decreased with age at diagnosis among BRCA1 (P-trend = 1.2 × 10−5), but increased with age at diagnosis among BRCA2, carriers (P-trend = 6.8 × 10−6). The proportion of triple-negative tumors decreased with age at diagnosis in BRCA1 carriers but increased with age at diagnosis of BRCA2 carriers. In both BRCA1 and BRCA2 carriers, ER-negative tumors were of higher histologic grade than ER-positive tumors (grade 3 vs. grade 1; P = 1.2 × 10−13 for BRCA1 and P = 0.001 for BRCA2). ER and progesterone receptor (PR) expression were independently associated with mutation carrier status [ER-positive odds ratio (OR) for BRCA2 = 9.4, 95% CI: 7.0–12.6 and PR-positive OR = 1.7, 95% CI: 1.3–2.3, under joint analysis]. Lobular tumors were more likely to be BRCA2-related (OR for BRCA2 = 3.3, 95% CI: 2.4–4.4; P = 4.4 × 10−14), and medullary tumors BRCA1-related (OR for BRCA2 = 0.25, 95% CI: 0.18–0.35; P = 2.3 × 10−15). ER-status of the first breast cancer was predictive of ER-status of asynchronous contralateral breast cancer (P = 0.0004 for BRCA1; P = 0.002 for BRCA2). There were no significant differences in ovarian cancer morphology between BRCA1 and BRCA2 carriers (serous: 67%; mucinous: 1%; endometrioid: 12%; clear-cell: 2%).Conclusions/Impact: Pathologic characteristics of BRCA1 and BRCA2 tumors may be useful for improving risk-prediction algorithms and informing clinical strategies for screening and prophylaxis. Cancer Epidemiol Biomarkers Prev; 21(1); 134–47. ©2011 AACR.
- Published
- 2023
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