1. Ovarian cancer pathology characteristics as predictors of variant pathogenicity in BRCA1 and BRCA2
- Author
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O’Mahony, Denise G, Ramus, Susan J, Southey, Melissa C, Meagher, Nicola S, Hadjisavvas, Andreas, John, Esther M, Hamann, Ute, Imyanitov, Evgeny N, Andrulis, Irene L, Sharma, Priyanka, Daly, Mary B, Hake, Christopher R, Weitzel, Jeffrey N, Jakubowska, Anna, Godwin, Andrew K, Arason, Adalgeir, Bane, Anita, Simard, Jacques, Soucy, Penny, Caligo, Maria A, Mai, Phuong L, Claes, Kathleen BM, Teixeira, Manuel R, Chung, Wendy K, Lazaro, Conxi, Hulick, Peter J, Toland, Amanda E, Pedersen, Inge Sokilde, Neuhausen, Susan L, Vega, Ana, de la Hoya, Miguel, Nevanlinna, Heli, Dhawan, Mallika, Zampiga, Valentina, Danesi, Rita, Varesco, Liliana, Gismondi, Viviana, Vellone, Valerio Gaetano, James, Paul A, Janavicius, Ramunas, Nikitina-Zake, Liene, Nielsen, Finn Cilius, van Overeem Hansen, Thomas, Pejovic, Tanja, Borg, Ake, Rantala, Johanna, Offit, Kenneth, Montagna, Marco, Nathanson, Katherine L, Domchek, Susan M, Osorio, Ana, García, María J, Karlan, Beth Y, De Fazio, Anna, Bowtell, David, McGuffog, Lesley, Leslie, Goska, Parsons, Michael T, Dörk, Thilo, Speith, Lisa-Marie, dos Santos, Elizabeth Santana, da Costa, Alexandre André BA, Radice, Paolo, Peterlongo, Paolo, Papi, Laura, Engel, Christoph, Hahnen, Eric, Schmutzler, Rita K, Wappenschmidt, Barbara, Easton, Douglas F, Tischkowitz, Marc, Singer, Christian F, Tan, Yen Yen, Whittemore, Alice S, Sieh, Weiva, Brenton, James D, Yannoukakos, Drakoulis, Fostira, Florentia, Konstantopoulou, Irene, Soukupova, Jana, Vocka, Michal, Chenevix-Trench, Georgia, Pharoah, Paul DP, Antoniou, Antonis C, Goldgar, David E, Spurdle, Amanda B, and Michailidou, Kyriaki
- Subjects
Biomedical and Clinical Sciences ,Oncology and Carcinogenesis ,Rare Diseases ,Cancer ,Breast Cancer ,Genetics ,Ovarian Cancer ,Aetiology ,2.1 Biological and endogenous factors ,Good Health and Well Being ,Humans ,Female ,Virulence ,BRCA1 Protein ,BRCA2 Protein ,Ovarian Neoplasms ,Genetic Predisposition to Disease ,Breast Neoplasms ,HEBON Investigators ,GEMO Study Collaborators ,AOCS Group ,CZECANCA Consortium ,Consortium of Investigators of Modifiers of BRCA1/2 ,Evidence-based Network for the Interpretation of Germline Mutant Alleles Consortium ,Public Health and Health Services ,Oncology & Carcinogenesis ,Oncology and carcinogenesis - Abstract
BackgroundThe distribution of ovarian tumour characteristics differs between germline BRCA1 and BRCA2 pathogenic variant carriers and non-carriers. In this study, we assessed the utility of ovarian tumour characteristics as predictors of BRCA1 and BRCA2 variant pathogenicity, for application using the American College of Medical Genetics and the Association for Molecular Pathology (ACMG/AMP) variant classification system.MethodsData for 10,373 ovarian cancer cases, including carriers and non-carriers of BRCA1 or BRCA2 pathogenic variants, were collected from unpublished international cohorts and consortia and published studies. Likelihood ratios (LR) were calculated for the association of ovarian cancer histology and other characteristics, with BRCA1 and BRCA2 variant pathogenicity. Estimates were aligned to ACMG/AMP code strengths (supporting, moderate, strong).ResultsNo histological subtype provided informative ACMG/AMP evidence in favour of BRCA1 and BRCA2 variant pathogenicity. Evidence against variant pathogenicity was estimated for the mucinous and clear cell histologies (supporting) and borderline cases (moderate). Refined associations are provided according to tumour grade, invasion and age at diagnosis.ConclusionsWe provide detailed estimates for predicting BRCA1 and BRCA2 variant pathogenicity based on ovarian tumour characteristics. This evidence can be combined with other variant information under the ACMG/AMP classification system, to improve classification and carrier clinical management.
- Published
- 2023