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2. Reproductive factors and mammographic density within the International Consortium of Mammographic Density: A cross-sectional study

Author

O’Driscoll, Jessica, Burton, Anya, Maskarinec, Gertraud, Perez-Gomez, Beatriz, Vachon, Celine, Miao, Hui, Lajous, Martín, López-Ridaura, Ruy, Eliassen, A. Heather, Pereira, Ana, Garmendia, Maria Luisa, Tamimi, Rulla M., Bertrand, Kimberly, Kwong, Ava, Ursin, Giske, Lee, Eunjung, Qureshi, Samera A., Ma, Huiyan, Vinnicombe, Sarah, Moss, Sue, Allen, Steve, Ndumia, Rose, Vinayak, Sudhir, Teo, Soo-Hwang, Mariapun, Shivaani, Fadzli, Farhana, Peplonska, Beata, Nagata, Chisato, Stone, Jennifer, Hopper, John L., Giles, Graham, Ozmen, Vahit, Aribal, Mustafa Erkin, Schüz, Joachim, Van Gils, Carla H., Wanders, Johanna O. P., Sirous, Reza, Sirous, Mehri, Hipwell, John, Kim, Jisun, Lee, Jong Won, Hartman, Mikael, Li, Jingmei, Scott, Christopher, Chiarelli, Anna M., Linton, Linda, Pollan, Marina, Flugelman, Anath Arzee, Salem, Dorria, Kamal, Rasha, Boyd, Norman, dos-Santos-Silva, Isabel, McCormack, Valerie, and Mullooly, Maeve

Published
2024
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4. Aggregation tests identify new gene associations with breast cancer in populations with diverse ancestry

Author

Mueller, Stefanie H, Lai, Alvina G, Valkovskaya, Maria, Michailidou, Kyriaki, Bolla, Manjeet K, Wang, Qin, Dennis, Joe, Lush, Michael, Abu-Ful, Zomoruda, Ahearn, Thomas U, Andrulis, Irene L, Anton-Culver, Hoda, Antonenkova, Natalia N, Arndt, Volker, Aronson, Kristan J, Augustinsson, Annelie, Baert, Thais, Freeman, Laura E Beane, Beckmann, Matthias W, Behrens, Sabine, Benitez, Javier, Bermisheva, Marina, Blomqvist, Carl, Bogdanova, Natalia V, Bojesen, Stig E, Bonanni, Bernardo, Brenner, Hermann, Brucker, Sara Y, Buys, Saundra S, Castelao, Jose E, Chan, Tsun L, Chang-Claude, Jenny, Chanock, Stephen J, Choi, Ji-Yeob, Chung, Wendy K, Colonna, Sarah V, Cornelissen, Sten, Couch, Fergus J, Czene, Kamila, Daly, Mary B, Devilee, Peter, Dörk, Thilo, Dossus, Laure, Dwek, Miriam, Eccles, Diana M, Ekici, Arif B, Eliassen, A Heather, Engel, Christoph, Evans, D Gareth, Fasching, Peter A, Fletcher, Olivia, Flyger, Henrik, Gago-Dominguez, Manuela, Gao, Yu-Tang, García-Closas, Montserrat, García-Sáenz, José A, Genkinger, Jeanine, Gentry-Maharaj, Aleksandra, Grassmann, Felix, Guénel, Pascal, Gündert, Melanie, Haeberle, Lothar, Hahnen, Eric, Haiman, Christopher A, Håkansson, Niclas, Hall, Per, Harkness, Elaine F, Harrington, Patricia A, Hartikainen, Jaana M, Hartman, Mikael, Hein, Alexander, Ho, Weang-Kee, Hooning, Maartje J, Hoppe, Reiner, Hopper, John L, Houlston, Richard S, Howell, Anthony, Hunter, David J, Huo, Dezheng, Ito, Hidemi, Iwasaki, Motoki, Jakubowska, Anna, Janni, Wolfgang, John, Esther M, Jones, Michael E, Jung, Audrey, Kaaks, Rudolf, Kang, Daehee, Khusnutdinova, Elza K, Kim, Sung-Won, Kitahara, Cari M, Koutros, Stella, Kraft, Peter, Kristensen, Vessela N, Kubelka-Sabit, Katerina, Kurian, Allison W, Kwong, Ava, Lacey, James V, Lambrechts, Diether, and Le Marchand, Loic

Subjects
Breast Cancer, Genetics, Clinical Research, Cancer, Aetiology, 2.1 Biological and endogenous factors, Humans, Female, Breast Neoplasms, Genetic Predisposition to Disease, Black People, Genetic Testing, Genome-Wide Association Study, Polymorphism, Single Nucleotide, Formins, Breast cancer susceptibility, Diverse ancestry, Rare variants, Gene regulation, Genome-wide association study, NBCS Collaborators, CTS Consortium, ABCTB Investigators, Clinical Sciences
Abstract

BackgroundLow-frequency variants play an important role in breast cancer (BC) susceptibility. Gene-based methods can increase power by combining multiple variants in the same gene and help identify target genes.MethodsWe evaluated the potential of gene-based aggregation in the Breast Cancer Association Consortium cohorts including 83,471 cases and 59,199 controls. Low-frequency variants were aggregated for individual genes' coding and regulatory regions. Association results in European ancestry samples were compared to single-marker association results in the same cohort. Gene-based associations were also combined in meta-analysis across individuals with European, Asian, African, and Latin American and Hispanic ancestry.ResultsIn European ancestry samples, 14 genes were significantly associated (q

Published
2023

5. Copy number variants as modifiers of breast cancer risk for BRCA1/BRCA2 pathogenic variant carriers

Author

Hakkaart, Christopher, Pearson, John F, Marquart, Louise, Dennis, Joe, Wiggins, George AR, Barnes, Daniel R, Robinson, Bridget A, Mace, Peter D, Aittomäki, Kristiina, Andrulis, Irene L, Arun, Banu K, Azzollini, Jacopo, Balmaña, Judith, Barkardottir, Rosa B, Belhadj, Sami, Berger, Lieke, Blok, Marinus J, Boonen, Susanne E, Borde, Julika, Bradbury, Angela R, Brunet, Joan, Buys, Saundra S, Caligo, Maria A, Campbell, Ian, Chung, Wendy K, Claes, Kathleen BM, Collonge-Rame, Marie-Agnès, Cook, Jackie, Cosgrove, Casey, Couch, Fergus J, Daly, Mary B, Dandiker, Sita, Davidson, Rosemarie, de la Hoya, Miguel, de Putter, Robin, Delnatte, Capucine, Dhawan, Mallika, Diez, Orland, Ding, Yuan Chun, Domchek, Susan M, Donaldson, Alan, Eason, Jacqueline, Easton, Douglas F, Ehrencrona, Hans, Engel, Christoph, Evans, D Gareth, Faust, Ulrike, Feliubadaló, Lidia, Fostira, Florentia, Friedman, Eitan, Frone, Megan, Frost, Debra, Garber, Judy, Gayther, Simon A, Gehrig, Andrea, Gesta, Paul, Godwin, Andrew K, Goldgar, David E, Greene, Mark H, Hahnen, Eric, Hake, Christopher R, Hamann, Ute, Hansen, Thomas VO, Hauke, Jan, Hentschel, Julia, Herold, Natalie, Honisch, Ellen, Hulick, Peter J, Imyanitov, Evgeny N, Isaacs, Claudine, Izatt, Louise, Izquierdo, Angel, Jakubowska, Anna, James, Paul A, Janavicius, Ramunas, John, Esther M, Joseph, Vijai, Karlan, Beth Y, Kemp, Zoe, Kirk, Judy, Konstantopoulou, Irene, Koudijs, Marco, Kwong, Ava, Laitman, Yael, Lalloo, Fiona, Lasset, Christine, Lautrup, Charlotte, Lazaro, Conxi, Legrand, Clémentine, Leslie, Goska, Lesueur, Fabienne, Mai, Phuong L, Manoukian, Siranoush, Mari, Véronique, Martens, John WM, McGuffog, Lesley, Mebirouk, Noura, Meindl, Alfons, Miller, Austin, and Montagna, Marco

Subjects
Human Genome, Prevention, Breast Cancer, Cancer, Genetics, Aetiology, 2.1 Biological and endogenous factors, BRCA1 Protein, BRCA2 Protein, Breast Neoplasms, DNA Copy Number Variations, Female, Genetic Predisposition to Disease, Heterozygote, Humans, RNA, Messenger, GEMO Study Collaborators, EMBRACE Collaborators, SWE-BRCA Investigators, kConFab Investigators, HEBON Investigators
Abstract

The contribution of germline copy number variants (CNVs) to risk of developing cancer in individuals with pathogenic BRCA1 or BRCA2 variants remains relatively unknown. We conducted the largest genome-wide analysis of CNVs in 15,342 BRCA1 and 10,740 BRCA2 pathogenic variant carriers. We used these results to prioritise a candidate breast cancer risk-modifier gene for laboratory analysis and biological validation. Notably, the HR for deletions in BRCA1 suggested an elevated breast cancer risk estimate (hazard ratio (HR) = 1.21), 95% confidence interval (95% CI = 1.09-1.35) compared with non-CNV pathogenic variants. In contrast, deletions overlapping SULT1A1 suggested a decreased breast cancer risk (HR = 0.73, 95% CI 0.59-0.91) in BRCA1 pathogenic variant carriers. Functional analyses of SULT1A1 showed that reduced mRNA expression in pathogenic BRCA1 variant cells was associated with reduced cellular proliferation and reduced DNA damage after treatment with DNA damaging agents. These data provide evidence that deleterious variants in BRCA1 plus SULT1A1 deletions contribute to variable breast cancer risk in BRCA1 carriers.

Published
2022

6. Incorporating progesterone receptor expression into the PREDICT breast prognostic model

Author

Grootes, Isabelle, Keeman, Renske, Blows, Fiona M, Milne, Roger L, Giles, Graham G, Swerdlow, Anthony J, Fasching, Peter A, Abubakar, Mustapha, Andrulis, Irene L, Anton-Culver, Hoda, Beckmann, Matthias W, Blomqvist, Carl, Bojesen, Stig E, Bolla, Manjeet K, Bonanni, Bernardo, Briceno, Ignacio, Burwinkel, Barbara, Camp, Nicola J, Castelao, Jose E, Choi, Ji-Yeob, Clarke, Christine L, Couch, Fergus J, Cox, Angela, Cross, Simon S, Czene, Kamila, Devilee, Peter, Dörk, Thilo, Dunning, Alison M, Dwek, Miriam, Easton, Douglas F, Eccles, Diana M, Eriksson, Mikael, Ernst, Kristina, Evans, D Gareth, Figueroa, Jonine D, Fink, Visnja, Floris, Giuseppe, Fox, Stephen, Gabrielson, Marike, Gago-Dominguez, Manuela, García-Sáenz, José A, González-Neira, Anna, Haeberle, Lothar, Haiman, Christopher A, Hall, Per, Hamann, Ute, Harkness, Elaine F, Hartman, Mikael, Hein, Alexander, Hooning, Maartje J, Hou, Ming-Feng, Howell, Sacha J, Investigators, ABCTB, Investigators, kConFab, Ito, Hidemi, Jakubowska, Anna, Janni, Wolfgang, John, Esther M, Jung, Audrey, Kang, Daehee, Kristensen, Vessela N, Kwong, Ava, Lambrechts, Diether, Li, Jingmei, Lubiński, Jan, Manoochehri, Mehdi, Margolin, Sara, Matsuo, Keitaro, Taib, Nur Aishah Mohd, Mulligan, Anna Marie, Nevanlinna, Heli, Newman, William G, Offit, Kenneth, Osorio, Ana, Park, Sue K, Park-Simon, Tjoung-Won, Patel, Alpa V, Presneau, Nadege, Pylkäs, Katri, Rack, Brigitte, Radice, Paolo, Rennert, Gad, Romero, Atocha, Saloustros, Emmanouil, Sawyer, Elinor J, Schneeweiss, Andreas, Schochter, Fabienne, Schoemaker, Minouk J, Shen, Chen-Yang, Shibli, Rana, Sinn, Peter, Tapper, William J, Tawfiq, Essa, Teo, Soo Hwang, Teras, Lauren R, Torres, Diana, Vachon, Celine M, van Deurzen, Carolien HM, Wendt, Camilla, and Williams, Justin A

Subjects
Cancer, Breast Cancer, Breast Neoplasms, Female, Humans, Progesterone, Prognosis, Receptor, ErbB-2, Receptors, Progesterone, PREDICT Breast, breast cancer, Progesterone receptor, ABCTB Investigators, kConFab Investigators, Receptor, erbB-2, Oncology and Carcinogenesis, Public Health and Health Services, Oncology & Carcinogenesis
Abstract

BackgroundPredict Breast (www.predict.nhs.uk) is an online prognostication and treatment benefit tool for early invasive breast cancer. The aim of this study was to incorporate the prognostic effect of progesterone receptor (PR) status into a new version of PREDICT and to compare its performance to the current version (2.2).MethodThe prognostic effect of PR status was based on the analysis of data from 45,088 European patients with breast cancer from 49 studies in the Breast Cancer Association Consortium. Cox proportional hazard models were used to estimate the hazard ratio for PR status. Data from a New Zealand study of 11,365 patients with early invasive breast cancer were used for external validation. Model calibration and discrimination were used to test the model performance.ResultsHaving a PR-positive tumour was associated with a 23% and 28% lower risk of dying from breast cancer for women with oestrogen receptor (ER)-negative and ER-positive breast cancer, respectively. The area under the ROC curve increased with the addition of PR status from 0.807 to 0.809 for patients with ER-negative tumours (p = 0.023) and from 0.898 to 0.902 for patients with ER-positive tumours (p = 2.3 × 10-6) in the New Zealand cohort. Model calibration was modest with 940 observed deaths compared to 1151 predicted.ConclusionThe inclusion of the prognostic effect of PR status to PREDICT Breast has led to an improvement of model performance and more accurate absolute treatment benefit predictions for individual patients. Further studies should determine whether the baseline hazard function requires recalibration.

Published
2022

7. Cancer Risks Associated With BRCA1 and BRCA2 Pathogenic Variants

Author

Li, Shuai, Silvestri, Valentina, Leslie, Goska, Rebbeck, Timothy R, Neuhausen, Susan L, Hopper, John L, Nielsen, Henriette Roed, Lee, Andrew, Yang, Xin, McGuffog, Lesley, Parsons, Michael T, Andrulis, Irene L, Arnold, Norbert, Belotti, Muriel, Borg, Åke, Buecher, Bruno, Buys, Saundra S, Caputo, Sandrine M, Chung, Wendy K, Colas, Chrystelle, Colonna, Sarah V, Cook, Jackie, Daly, Mary B, de la Hoya, Miguel, de Pauw, Antoine, Delhomelle, Hélène, Eason, Jacqueline, Engel, Christoph, Evans, D Gareth, Faust, Ulrike, Fehm, Tanja N, Fostira, Florentia, Fountzilas, George, Frone, Megan, Garcia-Barberan, Vanesa, Garre, Pilar, Gauthier-Villars, Marion, Gehrig, Andrea, Glendon, Gord, Goldgar, David E, Golmard, Lisa, Greene, Mark H, Hahnen, Eric, Hamann, Ute, Hanson, Helen, Hassan, Tiara, Hentschel, Julia, Horvath, Judit, Izatt, Louise, Janavicius, Ramunas, Jiao, Yue, John, Esther M, Karlan, Beth Y, Kim, Sung-Won, Konstantopoulou, Irene, Kwong, Ava, Laugé, Anthony, Lee, Jong Won, Lesueur, Fabienne, Mebirouk, Noura, Meindl, Alfons, Mouret-Fourme, Emmanuelle, Musgrave, Hannah, Yie, Joanne Ngeow Yuen, Niederacher, Dieter, Park, Sue K, Pedersen, Inge Sokilde, Ramser, Juliane, Ramus, Susan J, Rantala, Johanna, Rashid, Muhammad U, Reichl, Florian, Ritter, Julia, Rump, Andreas, Santamariña, Marta, Saule, Claire, Schmidt, Gunnar, Schmutzler, Rita K, Senter, Leigha, Shariff, Saba, Singer, Christian F, Southey, Melissa C, Stoppa-Lyonnet, Dominique, Sutter, Christian, Tan, Yen, Teo, Soo Hwang, Terry, Mary Beth, Thomassen, Mads, Tischkowitz, Marc, Toland, Amanda E, Torres, Diana, Vega, Ana, Wagner, Sebastian A, Wang-Gohrke, Shan, Wappenschmidt, Barbara, Weber, Bernhard HF, Yannoukakos, Drakoulis, Spurdle, Amanda B, Easton, Douglas F, and Chenevix-Trench, Georgia

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Prostate Cancer, Women's Health, Digestive Diseases, Breast Cancer, Ovarian Cancer, Pancreatic Cancer, Prevention, Cancer, Urologic Diseases, Rare Diseases, 2.1 Biological and endogenous factors, BRCA1 Protein, BRCA2 Protein, Breast Neoplasms, Breast Neoplasms, Male, Female, Genetic Predisposition to Disease, Heterozygote, Humans, Infant, Newborn, Male, Mutation, Ovarian Neoplasms, Pancreatic Neoplasms, Risk, Clinical Sciences, Oncology & Carcinogenesis, Oncology and carcinogenesis
Abstract

PurposeTo provide precise age-specific risk estimates of cancers other than female breast and ovarian cancers associated with pathogenic variants (PVs) in BRCA1 and BRCA2 for effective cancer risk management.MethodsWe used data from 3,184 BRCA1 and 2,157 BRCA2 families in the Consortium of Investigators of Modifiers of BRCA1/2 to estimate age-specific relative (RR) and absolute risks for 22 first primary cancer types adjusting for family ascertainment.ResultsBRCA1 PVs were associated with risks of male breast (RR = 4.30; 95% CI, 1.09 to 16.96), pancreatic (RR = 2.36; 95% CI, 1.51 to 3.68), and stomach (RR = 2.17; 95% CI, 1.25 to 3.77) cancers. Associations with colorectal and gallbladder cancers were also suggested. BRCA2 PVs were associated with risks of male breast (RR = 44.0; 95% CI, 21.3 to 90.9), stomach (RR = 3.69; 95% CI, 2.40 to 5.67), pancreatic (RR = 3.34; 95% CI, 2.21 to 5.06), and prostate (RR = 2.22; 95% CI, 1.63 to 3.03) cancers. The stomach cancer RR was higher for females than males (6.89 v 2.76; P = .04). The absolute risks to age 80 years ranged from 0.4% for male breast cancer to approximately 2.5% for pancreatic cancer for BRCA1 carriers and from approximately 2.5% for pancreatic cancer to 27% for prostate cancer for BRCA2 carriers.ConclusionIn addition to female breast and ovarian cancers, BRCA1 and BRCA2 PVs are associated with increased risks of male breast, pancreatic, stomach, and prostate (only BRCA2 PVs) cancers, but not with the risks of other previously suggested cancers. The estimated age-specific risks will refine cancer risk management in men and women with BRCA1/2 PVs.

Published
2022

8. Contraceptive use and the risk of ovarian cancer among women with a BRCA1 or BRCA2 mutation

Author

Xia, Yue Yin, Gronwald, Jacek, Karlan, Beth, Lubinski, Jan, McCuaig, Jeanna M, Brooks, Jennifer, Moller, Pal, Eisen, Andrea, Sun, Sophie, Senter, Leigha, Bordeleau, Louise, Neuhausen, Susan L, Singer, Christian F, Tung, Nadine, Foulkes, William D, Sun, Ping, Narod, Steven A, Kotsopoulos, Joanne, Yerushalmi, Rinat, Fruscio, Robert, Rastelli, Antonella, Zovato, Stefania, Hyder, Zerin, Huzarski, Tomasz, Cybulski, Cezary, Sweet, Kevin, Wood, Marie, McKinnon, Wendy, Elser, Christine, Pal, Tuya, Wiesner, Georgia, Friedman, Eitan, Meschino, Wendy, Snyder, Carrie, Metcalfe, Kelly, Poll, Aletta, Gojska, Nicole, Warner, Ellen, Kim, Raymond H, Rosen, Barry, Demsky, Rochelle, Ainsworth, Peter, Panabaker, Karen, Steele, Linda, Saal, Howard, Serfas, Kim, Panchal, Seema, Cullinane, Carey A, Reilly, Robert E, Blum, Joanne L, Kwong, Ava, Rayson, Daniel, Isaacs, Claudine, Ramón y Cajal, Teresa, Dungan, Jeffrey, and Cohen, Stephanie

Subjects
Reproductive Medicine, Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Rare Diseases, Breast Cancer, Clinical Research, Prevention, Contraception/Reproduction, Cancer, Ovarian Cancer, 2.2 Factors relating to the physical environment, Aetiology, Reproductive health and childbirth, Good Health and Well Being, BRCA1 Protein, BRCA2 Protein, Breast Neoplasms, Carcinoma, Ovarian Epithelial, Case-Control Studies, Contraceptives, Oral, Female, Heterozygote, Humans, Mutation, Ovarian Neoplasms, Risk Factors, BRCA, Ovarian cancer, Contraception, Intrauterine device, Case-control, Hereditary Ovarian Cancer Clinical Study Group, Paediatrics and Reproductive Medicine, Oncology & Carcinogenesis, Clinical sciences, Oncology and carcinogenesis, Reproductive medicine
Abstract

Background BRCA1 and BRCA2 (BRCA) mutation carriers face a high lifetime risk of developing ovarian cancer. Oral contraceptives are protective in this population; however, the impact of other types of contraception (e.g. intrauterine devices, implants, injections) is unknown. We undertook a matched case-control study to evaluate the relationship between type of contraception and risk of ovarian cancer among women with BRCA mutations. Methods A total of 1733 matched pairs were included in this analysis. Women were matched according to year of birth, date of study entry, country of residence, BRCA mutation type and history of breast cancer. Detailed information on hormonal, reproductive and lifestyle exposures were collected from a routinely administered questionnaire. Conditional logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI) associated with each contraceptive exposure. Results Ever use of any contraceptive was significantly associated with reduced risk of ovarian cancer (OR = 0.62; 95% CI 0.52-0.75; P

Published
2022

10. The predictive ability of the 313 variant-based polygenic risk score for contralateral breast cancer risk prediction in women of European ancestry with a heterozygous BRCA1 or BRCA2 pathogenic variant.

Author

Lakeman, Inge MM, van den Broek, Alexandra J, Vos, Juliën AM, Barnes, Daniel R, Adlard, Julian, Andrulis, Irene L, Arason, Adalgeir, Arnold, Norbert, Arun, Banu K, Balmaña, Judith, Barrowdale, Daniel, Benitez, Javier, Borg, Ake, Caldés, Trinidad, Caligo, Maria A, Chung, Wendy K, Claes, Kathleen BM, GEMO Study Collaborators, EMBRACE Collaborators, Collée, J Margriet, Couch, Fergus J, Daly, Mary B, Dennis, Joe, Dhawan, Mallika, Domchek, Susan M, Eeles, Ros, Engel, Christoph, Evans, D Gareth, Feliubadaló, Lidia, Foretova, Lenka, Friedman, Eitan, Frost, Debra, Ganz, Patricia A, Garber, Judy, Gayther, Simon A, Gerdes, Anne-Marie, Godwin, Andrew K, Goldgar, David E, Hahnen, Eric, Hake, Christopher R, Hamann, Ute, Hogervorst, Frans BL, Hooning, Maartje J, Hopper, John L, Hulick, Peter J, Imyanitov, Evgeny N, OCGN Investigators, HEBON Investigators, KconFab Investigators, Isaacs, Claudine, Izatt, Louise, Jakubowska, Anna, James, Paul A, Janavicius, Ramunas, Jensen, Uffe Birk, Jiao, Yue, John, Esther M, Joseph, Vijai, Karlan, Beth Y, Kets, Carolien M, Konstantopoulou, Irene, Kwong, Ava, Legrand, Clémentine, Leslie, Goska, Lesueur, Fabienne, Loud, Jennifer T, Lubiński, Jan, Manoukian, Siranoush, McGuffog, Lesley, Miller, Austin, Gomes, Denise Molina, Montagna, Marco, Mouret-Fourme, Emmanuelle, Nathanson, Katherine L, Neuhausen, Susan L, Nevanlinna, Heli, Yie, Joanne Ngeow Yuen, Olah, Edith, Olopade, Olufunmilayo I, Park, Sue K, Parsons, Michael T, Peterlongo, Paolo, Piedmonte, Marion, Radice, Paolo, Rantala, Johanna, Rennert, Gad, Risch, Harvey A, Schmutzler, Rita K, Sharma, Priyanka, Simard, Jacques, Singer, Christian F, Stadler, Zsofia, Stoppa-Lyonnet, Dominique, Sutter, Christian, Tan, Yen Yen, Teixeira, Manuel R, Teo, Soo Hwang, Teulé, Alex, Thomassen, Mads, and Thull, Darcy L

Subjects
GEMO Study Collaborators, EMBRACE Collaborators, OCGN Investigators, HEBON Investigators, KconFab Investigators, Humans, Breast Neoplasms, Genetic Predisposition to Disease, BRCA1 Protein, BRCA2 Protein, Risk Factors, Retrospective Studies, Heterozygote, Mutation, Adult, Female, Prevention, Cancer, Aging, Breast Cancer, 2.1 Biological and endogenous factors, Genetics & Heredity, Genetics, Clinical Sciences
Abstract

PurposeTo evaluate the association between a previously published 313 variant-based breast cancer (BC) polygenic risk score (PRS313) and contralateral breast cancer (CBC) risk, in BRCA1 and BRCA2 pathogenic variant heterozygotes.MethodsWe included women of European ancestry with a prevalent first primary invasive BC (BRCA1 = 6,591 with 1,402 prevalent CBC cases; BRCA2 = 4,208 with 647 prevalent CBC cases) from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA), a large international retrospective series. Cox regression analysis was performed to assess the association between overall and ER-specific PRS313 and CBC risk.ResultsFor BRCA1 heterozygotes the estrogen receptor (ER)-negative PRS313 showed the largest association with CBC risk, hazard ratio (HR) per SD = 1.12, 95% confidence interval (CI) (1.06-1.18), C-index = 0.53; for BRCA2 heterozygotes, this was the ER-positive PRS313, HR = 1.15, 95% CI (1.07-1.25), C-index = 0.57. Adjusting for family history, age at diagnosis, treatment, or pathological characteristics for the first BC did not change association effect sizes. For women developing first BC

Published
2021

14. Functional annotation of the 2q35 breast cancer risk locus implicates a structural variant in influencing activity of a long-range enhancer element

Author

Baxter, Joseph S, Johnson, Nichola, Tomczyk, Katarzyna, Gillespie, Andrea, Maguire, Sarah, Brough, Rachel, Fachal, Laura, Michailidou, Kyriaki, Bolla, Manjeet K, Wang, Qin, Dennis, Joe, Ahearn, Thomas U, Andrulis, Irene L, Anton-Culver, Hoda, Antonenkova, Natalia N, Arndt, Volker, Aronson, Kristan J, Augustinsson, Annelie, Becher, Heiko, Beckmann, Matthias W, Behrens, Sabine, Benitez, Javier, Bermisheva, Marina, Bogdanova, Natalia V, Bojesen, Stig E, Brenner, Hermann, Brucker, Sara Y, Cai, Qiuyin, Campa, Daniele, Canzian, Federico, Castelao, Jose E, Chan, Tsun L, Chang-Claude, Jenny, Chanock, Stephen J, Chenevix-Trench, Georgia, Choi, Ji-Yeob, Clarke, Christine L, Collaborators, NBCS, Colonna, Sarah, Conroy, Don M, Couch, Fergus J, Cox, Angela, Cross, Simon S, Czene, Kamila, Daly, Mary B, Devilee, Peter, Dörk, Thilo, Dossus, Laure, Dwek, Miriam, Eccles, Diana M, Ekici, Arif B, Eliassen, A Heather, Engel, Christoph, Fasching, Peter A, Figueroa, Jonine, Flyger, Henrik, Gago-Dominguez, Manuela, Gao, Chi, García-Closas, Montserrat, García-Sáenz, José A, Ghoussaini, Maya, Giles, Graham G, Goldberg, Mark S, González-Neira, Anna, Guénel, Pascal, Gündert, Melanie, Haeberle, Lothar, Hahnen, Eric, Haiman, Christopher A, Hall, Per, Hamann, Ute, Hartman, Mikael, Hatse, Sigrid, Hauke, Jan, Hollestelle, Antoinette, Hoppe, Reiner, Hopper, John L, Hou, Ming-Feng, Investigators, kConFab, Investigators, ABCTB, Ito, Hidemi, Iwasaki, Motoki, Jager, Agnes, Jakubowska, Anna, Janni, Wolfgang, John, Esther M, Joseph, Vijai, Jung, Audrey, Kaaks, Rudolf, Kang, Daehee, Keeman, Renske, Khusnutdinova, Elza, Kim, Sung-Won, Kosma, Veli-Matti, Kraft, Peter, Kristensen, Vessela N, Kubelka-Sabit, Katerina, Kurian, Allison W, Kwong, Ava, and Lacey, James V

Subjects
Human Genome, Genetics, Cancer, Estrogen, Prevention, Breast Cancer, 2.1 Biological and endogenous factors, Aetiology, Breast Neoplasms, CRISPR-Cas Systems, Cell Line, Chromosome Mapping, Chromosomes, Human, Pair 2, Female, Genetic Association Studies, Genetic Variation, Humans, Insulin-Like Growth Factor Binding Protein 5, Molecular Sequence Annotation, Promoter Regions, Genetic, Risk Factors, Sequence Deletion, NBCS Collaborators, kConFab Investigators, ABCTB Investigators, breast cancer risk, functional annotation, risk locus, Biological Sciences, Medical and Health Sciences, Genetics & Heredity
Abstract

A combination of genetic and functional approaches has identified three independent breast cancer risk loci at 2q35. A recent fine-scale mapping analysis to refine these associations resulted in 1 (signal 1), 5 (signal 2), and 42 (signal 3) credible causal variants at these loci. We used publicly available in silico DNase I and ChIP-seq data with in vitro reporter gene and CRISPR assays to annotate signals 2 and 3. We identified putative regulatory elements that enhanced cell-type-specific transcription from the IGFBP5 promoter at both signals (30- to 40-fold increased expression by the putative regulatory element at signal 2, 2- to 3-fold by the putative regulatory element at signal 3). We further identified one of the five credible causal variants at signal 2, a 1.4 kb deletion (esv3594306), as the likely causal variant; the deletion allele of this variant was associated with an average additional increase in IGFBP5 expression of 1.3-fold (MCF-7) and 2.2-fold (T-47D). We propose a model in which the deletion allele of esv3594306 juxtaposes two transcription factor binding regions (annotated by estrogen receptor alpha ChIP-seq peaks) to generate a single extended regulatory element. This regulatory element increases cell-type-specific expression of the tumor suppressor gene IGFBP5 and, thereby, reduces risk of estrogen receptor-positive breast cancer (odds ratio = 0.77, 95% CI 0.74-0.81, p = 3.1 × 10-31).

Published
2021

15. Neratinib + capecitabine sustains health-related quality of life in patients with HER2-positive metastatic breast cancer and ≥ 2 prior HER2-directed regimens

Author

Moy, Beverly, Oliveira, Mafalda, Saura, Cristina, Gradishar, William, Kim, Sung-Bae, Brufsky, Adam, Hurvitz, Sara A, Ryvo, Larisa, Fagnani, Daniele, Kalmadi, Sujith, Silverman, Paula, Delaloge, Suzette, Alarcon, Jesus, Kwong, Ava, Lee, Keun Seok, Ang, Peter Cher Siang, Ow, Samuel Guan Wei, Chu, Sung-Chao, Bryce, Richard, Keyvanjah, Kiana, Bebchuk, Judith, Zhang, Bo, Oestreicher, Nina, Bose, Ron, and Chan, Nancy

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Breast Cancer, Cancer, Clinical Trials and Supportive Activities, Clinical Research, Evaluation of treatments and therapeutic interventions, 6.1 Pharmaceuticals, Antineoplastic Combined Chemotherapy Protocols, Breast Neoplasms, Capecitabine, Female, Humans, Quality of Life, Quinolines, Receptor, ErbB-2, Neratinib, Metastatic breast cancer, Health-related quality of life, HER2-positive, Receptor, erbB-2, Clinical Sciences, Oncology & Carcinogenesis, Clinical sciences, Oncology and carcinogenesis
Abstract

PurposeTo characterize health-related quality of life (HRQoL) in patients with human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC) from the NALA phase 3 study.MethodsIn NALA (NCT01808573), patients were randomized 1:1 to neratinib + capecitabine (N + C) or lapatinib + capecitabine (L + C). HRQoL was assessed using seven prespecified scores from the European Organisation for Research and Treatment of Cancer Quality Of Life Questionnaire core module (QLQ-C30) and breast cancer-specific questionnaire (QLQ-BR23) at baseline and every 6 weeks. Descriptive statistics summarized scores over time, mixed models evaluated differences between treatment arms, and Kaplan-Meier methods were used to assess time to deterioration in HRQoL scores of ≥ 10 points.ResultsOf the 621 patients randomized in NALA, patients were included in the HRQoL analysis if they completed baseline and at least one follow-up questionnaire. The summary, global health status, physical functioning, fatigue, constipation, and systemic therapy side effects scores were stable over time with no persistent differences between treatment groups. There were no differences in time to deterioration (TTD) for the QLQ-C30 summary score between treatment arms; the hazard ratio (HR) for N + C vs. L + C was 0.94 (95% CI 0.63-1.40). Only the diarrhea score worsened significantly more in the N + C arm as compared to the L + C arm, and this remained over time (HR for TTD for N + C vs. L + C was 1.71 [95% CI 1.32-2.23]).ConclusionIn NALA, patients treated with N + C maintained their global HRQoL over time, despite a worsening of the diarrhea-related scores. These results may help guide optimal treatment selection for HER2-positive MBC.

Published
2021

17. Breast Cancer Polygenic Risk Score and Contralateral Breast Cancer Risk

Author

Kramer, Iris, Hooning, Maartje J, Mavaddat, Nasim, Hauptmann, Michael, Keeman, Renske, Steyerberg, Ewout W, Giardiello, Daniele, Antoniou, Antonis C, Pharoah, Paul DP, Canisius, Sander, Abu-Ful, Zumuruda, Andrulis, Irene L, Anton-Culver, Hoda, Aronson, Kristan J, Augustinsson, Annelie, Becher, Heiko, Beckmann, Matthias W, Behrens, Sabine, Benitez, Javier, Bermisheva, Marina, Bogdanova, Natalia V, Bojesen, Stig E, Bolla, Manjeet K, Bonanni, Bernardo, Brauch, Hiltrud, Bremer, Michael, Brucker, Sara Y, Burwinkel, Barbara, Castelao, Jose E, Chan, Tsun L, Chang-Claude, Jenny, Chanock, Stephen J, Chenevix-Trench, Georgia, Choi, Ji-Yeob, Clarke, Christine L, Collée, J Margriet, Couch, Fergus J, Cox, Angela, Cross, Simon S, Czene, Kamila, Daly, Mary B, Devilee, Peter, Dörk, Thilo, dos-Santos-Silva, Isabel, Dunning, Alison M, Dwek, Miriam, Eccles, Diana M, Evans, D Gareth, Fasching, Peter A, Flyger, Henrik, Gago-Dominguez, Manuela, García-Closas, Montserrat, García-Sáenz, José A, Giles, Graham G, Goldgar, David E, González-Neira, Anna, Haiman, Christopher A, Håkansson, Niclas, Hamann, Ute, Hartman, Mikael, Heemskerk-Gerritsen, Bernadette AM, Hollestelle, Antoinette, Hopper, John L, Hou, Ming-Feng, Howell, Anthony, Ito, Hidemi, Jakimovska, Milena, Jakubowska, Anna, Janni, Wolfgang, John, Esther M, Jung, Audrey, Kang, Daehee, Kets, C Marleen, Khusnutdinova, Elza, Ko, Yon-Dschun, Kristensen, Vessela N, Kurian, Allison W, Kwong, Ava, Lambrechts, Diether, Le Marchand, Loic, Li, Jingmei, Lindblom, Annika, Lubiński, Jan, Mannermaa, Arto, Manoochehri, Mehdi, Margolin, Sara, Matsuo, Keitaro, Mavroudis, Dimitrios, Meindl, Alfons, Milne, Roger, Mulligan, Anna Marie, Muranen, Taru A, Neuhausen, Susan L, Nevanlinna, Heli, Newman, William G, Olshan, Andrew F, Olson, Janet E, Olsson, Håkan, Park-Simon, Tjoung-Won, and Peto, Julian

Subjects
Breast Cancer, Prevention, Cancer, Adult, Aged, Asian People, Breast Neoplasms, Cohort Studies, Estrogen Receptor alpha, Female, Gene Expression, Genetic Predisposition to Disease, Genome, Human, Genome-Wide Association Study, Humans, Middle Aged, Multifactorial Inheritance, Neoadjuvant Therapy, Neoplasms, Second Primary, Prognosis, Proportional Hazards Models, Receptor, ErbB-2, Receptors, Progesterone, Risk Assessment, White People, NBCS Collaborators, ABCTB Investigators, kConFab Investigators, Receptor, erbB-2, contralateral breast cancer, epidemiology, genetic, polygenic risk score, Biological Sciences, Medical and Health Sciences, Genetics & Heredity
Abstract

Previous research has shown that polygenic risk scores (PRSs) can be used to stratify women according to their risk of developing primary invasive breast cancer. This study aimed to evaluate the association between a recently validated PRS of 313 germline variants (PRS313) and contralateral breast cancer (CBC) risk. We included 56,068 women of European ancestry diagnosed with first invasive breast cancer from 1990 onward with follow-up from the Breast Cancer Association Consortium. Metachronous CBC risk (N = 1,027) according to the distribution of PRS313 was quantified using Cox regression analyses. We assessed PRS313 interaction with age at first diagnosis, family history, morphology, ER status, PR status, and HER2 status, and (neo)adjuvant therapy. In studies of Asian women, with limited follow-up, CBC risk associated with PRS313 was assessed using logistic regression for 340 women with CBC compared with 12,133 women with unilateral breast cancer. Higher PRS313 was associated with increased CBC risk: hazard ratio per standard deviation (SD) = 1.25 (95%CI = 1.18-1.33) for Europeans, and an OR per SD = 1.15 (95%CI = 1.02-1.29) for Asians. The absolute lifetime risks of CBC, accounting for death as competing risk, were 12.4% for European women at the 10th percentile and 20.5% at the 90th percentile of PRS313. We found no evidence of confounding by or interaction with individual characteristics, characteristics of the primary tumor, or treatment. The C-index for the PRS313 alone was 0.563 (95%CI = 0.547-0.586). In conclusion, PRS313 is an independent factor associated with CBC risk and can be incorporated into CBC risk prediction models to help improve stratification and optimize surveillance and treatment strategies.

Published
2020

20. Polygenic risk scores and breast and epithelial ovarian cancer risks for carriers of BRCA1 and BRCA2 pathogenic variants

Author

Barnes, Daniel R, Rookus, Matti A, McGuffog, Lesley, Leslie, Goska, Mooij, Thea M, Dennis, Joe, Mavaddat, Nasim, Adlard, Julian, Ahmed, Munaza, Aittomäki, Kristiina, Andrieu, Nadine, Andrulis, Irene L, Arnold, Norbert, Arun, Banu K, Azzollini, Jacopo, Balmaña, Judith, Barkardottir, Rosa B, Barrowdale, Daniel, Benitez, Javier, Berthet, Pascaline, Białkowska, Katarzyna, Blanco, Amie M, Blok, Marinus J, Bonanni, Bernardo, Boonen, Susanne E, Borg, Åke, Bozsik, Aniko, Bradbury, Angela R, Brennan, Paul, Brewer, Carole, Brunet, Joan, Buys, Saundra S, Caldés, Trinidad, Caligo, Maria A, Campbell, Ian, Christensen, Lise Lotte, Chung, Wendy K, Claes, Kathleen BM, Colas, Chrystelle, Collonge-Rame, Marie-Agnès, Cook, Jackie, Daly, Mary B, Davidson, Rosemarie, de la Hoya, Miguel, de Putter, Robin, Delnatte, Capucine, Devilee, Peter, Diez, Orland, Ding, Yuan Chun, Domchek, Susan M, Dorfling, Cecilia M, Dumont, Martine, Eeles, Ros, Ejlertsen, Bent, Engel, Christoph, Evans, D Gareth, Faivre, Laurence, Foretova, Lenka, Fostira, Florentia, Friedlander, Michael, Friedman, Eitan, Frost, Debra, Ganz, Patricia A, Garber, Judy, Gehrig, Andrea, Gerdes, Anne-Marie, Gesta, Paul, Giraud, Sophie, Glendon, Gord, Godwin, Andrew K, Goldgar, David E, González-Neira, Anna, Greene, Mark H, Gschwantler-Kaulich, Daphne, Hahnen, Eric, Hamann, Ute, Hanson, Helen, Hentschel, Julia, Hogervorst, Frans BL, Hooning, Maartje J, Horvath, Judit, Hu, Chunling, Hulick, Peter J, Imyanitov, Evgeny N, Isaacs, Claudine, Izatt, Louise, Izquierdo, Angel, Jakubowska, Anna, James, Paul A, Janavicius, Ramunas, John, Esther M, Joseph, Vijai, Karlan, Beth Y, Kast, Karin, Koudijs, Marco, Kruse, Torben A, Kwong, Ava, Laitman, Yael, Lasset, Christine, and Lazaro, Conxi

Subjects
Clinical Research, Cancer, Ovarian Cancer, Prevention, Rare Diseases, Breast Cancer, 2.1 Biological and endogenous factors, Aetiology, BRCA1 Protein, BRCA2 Protein, Breast Neoplasms, Carcinoma, Ovarian Epithelial, Female, Genetic Predisposition to Disease, Heterozygote, Humans, Mutation, Ovarian Neoplasms, Prospective Studies, Retrospective Studies, Risk Factors, BRCA1, 2, breast cancer, ovarian cancer, PRS, genetics, GEMO Study Collaborators, EMBRACE Collaborators, kConFab Investigators, HEBON Investigators, GENEPSO Investigators, Consortium of Investigators of Modifiers of BRCA and BRCA2, BRCA1/2, Genetics, Clinical Sciences, Genetics & Heredity
Abstract

PurposeWe assessed the associations between population-based polygenic risk scores (PRS) for breast (BC) or epithelial ovarian cancer (EOC) with cancer risks for BRCA1 and BRCA2 pathogenic variant carriers.MethodsRetrospective cohort data on 18,935 BRCA1 and 12,339 BRCA2 female pathogenic variant carriers of European ancestry were available. Three versions of a 313 single-nucleotide polymorphism (SNP) BC PRS were evaluated based on whether they predict overall, estrogen receptor (ER)-negative, or ER-positive BC, and two PRS for overall or high-grade serous EOC. Associations were validated in a prospective cohort.ResultsThe ER-negative PRS showed the strongest association with BC risk for BRCA1 carriers (hazard ratio [HR] per standard deviation = 1.29 [95% CI 1.25-1.33], P = 3×10-72). For BRCA2, the strongest association was with overall BC PRS (HR = 1.31 [95% CI 1.27-1.36], P = 7×10-50). HR estimates decreased significantly with age and there was evidence for differences in associations by predicted variant effects on protein expression. The HR estimates were smaller than general population estimates. The high-grade serous PRS yielded the strongest associations with EOC risk for BRCA1 (HR = 1.32 [95% CI 1.25-1.40], P = 3×10-22) and BRCA2 (HR = 1.44 [95% CI 1.30-1.60], P = 4×10-12) carriers. The associations in the prospective cohort were similar.ConclusionPopulation-based PRS are strongly associated with BC and EOC risks for BRCA1/2 carriers and predict substantial absolute risk differences for women at PRS distribution extremes.

Published
2020

21. Relevance of the MHC region for breast cancer susceptibility in Asians

Author

Ho, Peh Joo, Khng, Alexis Jiaying, Tan, Benita Kiat-Tee, Tan, Ern Yu, Tan, Su-Ming, Tan, Veronique Kiak Mien, Lim, Geok Hoon, Aronson, Kristan J., Chan, Tsun L., Choi, Ji-Yeob, Dennis, Joe, Ho, Weang-Kee, Hou, Ming-Feng, Ito, Hidemi, Iwasaki, Motoki, John, Esther M., Kang, Daehee, Kim, Sung-Won, Kurian, Allison W., Kwong, Ava, Lophatananon, Artitaya, Matsuo, Keitaro, Mohd-Taib, Nur Aishah, Muir, Kenneth, Murphy, Rachel A., Park, Sue K., Shen, Chen-Yang, Shu, Xiao-Ou, Teo, Soo Hwang, Wang, Qin, Yamaji, Taiki, Zheng, Wei, Bolla, Manjeet K., Dunning, Alison M., Easton, Douglas F., Pharoah, Paul D. P., Hartman, Mikael, and Li, Jingmei

Published
2022
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26. BRCA1 and BRCA2 pathogenic sequence variants in women of African origin or ancestry

Author

Friebel, Tara M, Andrulis, Irene L, Balmaña, Judith, Blanco, Amie M, Couch, Fergus J, Daly, Mary B, Domchek, Susan M, Easton, Douglas F, Foulkes, William D, Ganz, Patricia A, Garber, Judy, Glendon, Gord, Greene, Mark H, Hulick, Peter J, Isaacs, Claudine, Jankowitz, Rachel C, Karlan, Beth Y, Kirk, Judy, Kwong, Ava, Lee, Annette, Lesueur, Fabienne, Lu, Karen H, Nathanson, Katherine L, Neuhausen, Susan L, Offit, Kenneth, Palmero, Edenir I, Sharma, Priyanka, Tischkowitz, Marc, Toland, Amanda E, Tung, Nadine, van Rensburg, Elizabeth J, Vega, Ana, Weitzel, Jeffrey N, Collaborators, GEMO Study, Hoskins, Kent F, Maga, Tara, Parsons, Michael T, McGuffog, Lesley, Antoniou, Antonis C, Chenevix‐Trench, Georgia, Huo, Dezheng, Olopade, Olufunmilayo I, and Rebbeck, Timothy R

Subjects
Biological Sciences, Biomedical and Clinical Sciences, Genetics, Breast Cancer, Cancer, Alleles, BRCA1 Protein, BRCA2 Protein, Black People, Female, Genetic Association Studies, Genetic Predisposition to Disease, Genetic Variation, Humans, Mutation, Population Surveillance, African ancestry, BRCA1, BRCA2, mutation, pathogenic sequence variant, Clinical Sciences, Genetics & Heredity, Clinical sciences
Abstract

BRCA1 and BRCA2 (BRCA1/2) pathogenic sequence variants (PSVs) confer elevated risks of multiple cancers. However, most BRCA1/2 PSVs reports focus on European ancestry individuals. Knowledge of the PSV distribution in African descent individuals is poorly understood. We undertook a systematic review of the published literature and publicly available databases reporting BRCA1/2 PSVs also accessed the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA) database to identify African or African descent individuals. Using these data, we inferred which of the BRCA PSVs were likely to be of African continental origin. Of the 43,817 BRCA1/2 PSV carriers in the CIMBA database, 469 (1%) were of African descent. Additional African descent individuals were identified in public databases (n = 291) and the literature (n = 601). We identified 164 unique BRCA1 and 173 unique BRCA2 PSVs in individuals of African ancestry. Of these, 83 BRCA1 and 91 BRCA2 PSVs are of likely or possible African origin. We observed numerous differences in the distribution of PSV type and function in African origin versus non-African origin PSVs. Research in populations of African ancestry with BRCA1/2 PSVs is needed to provide the information needed for clinical management and decision-making in African descent individuals worldwide.

Published
2019

27. Two truncating variants in FANCC and breast cancer risk.

Author

Dörk, Thilo, Peterlongo, Paolo, Mannermaa, Arto, Bolla, Manjeet K, Wang, Qin, Dennis, Joe, Ahearn, Thomas, Andrulis, Irene L, Anton-Culver, Hoda, Arndt, Volker, Aronson, Kristan J, Augustinsson, Annelie, Freeman, Laura E Beane, Beckmann, Matthias W, Beeghly-Fadiel, Alicia, Behrens, Sabine, Bermisheva, Marina, Blomqvist, Carl, Bogdanova, Natalia V, Bojesen, Stig E, Brauch, Hiltrud, Brenner, Hermann, Burwinkel, Barbara, Canzian, Federico, Chan, Tsun L, Chang-Claude, Jenny, Chanock, Stephen J, Choi, Ji-Yeob, Christiansen, Hans, Clarke, Christine L, Couch, Fergus J, Czene, Kamila, Daly, Mary B, Dos-Santos-Silva, Isabel, Dwek, Miriam, Eccles, Diana M, Ekici, Arif B, Eriksson, Mikael, Evans, D Gareth, Fasching, Peter A, Figueroa, Jonine, Flyger, Henrik, Fritschi, Lin, Gabrielson, Marike, Gago-Dominguez, Manuela, Gao, Chi, Gapstur, Susan M, García-Closas, Montserrat, García-Sáenz, José A, Gaudet, Mia M, Giles, Graham G, Goldberg, Mark S, Goldgar, David E, Guénel, Pascal, Haeberle, Lothar, Haiman, Christopher A, Håkansson, Niclas, Hall, Per, Hamann, Ute, Hartman, Mikael, Hauke, Jan, Hein, Alexander, Hillemanns, Peter, Hogervorst, Frans BL, Hooning, Maartje J, Hopper, John L, Howell, Tony, Huo, Dezheng, Ito, Hidemi, Iwasaki, Motoki, Jakubowska, Anna, Janni, Wolfgang, John, Esther M, Jung, Audrey, Kaaks, Rudolf, Kang, Daehee, Kapoor, Pooja Middha, Khusnutdinova, Elza, Kim, Sung-Won, Kitahara, Cari M, Koutros, Stella, Kraft, Peter, Kristensen, Vessela N, Kwong, Ava, Lambrechts, Diether, Marchand, Loic Le, Li, Jingmei, Lindström, Sara, Linet, Martha, Lo, Wing-Yee, Long, Jirong, Lophatananon, Artitaya, Lubiński, Jan, Manoochehri, Mehdi, Manoukian, Siranoush, Margolin, Sara, Martinez, Elena, Matsuo, Keitaro, Mavroudis, Dimitris, and Meindl, Alfons

Subjects
ABCTB Investigators, NBCS Collaborators, Humans, Breast Neoplasms, Fanconi Anemia, Genetic Predisposition to Disease, BRCA1 Protein, BRCA2 Protein, Case-Control Studies, Sequence Deletion, Female, Fanconi Anemia Complementation Group C Protein, Genetic Variation, Clinical Research, Breast Cancer, Genetics, Cancer, 2.1 Biological and endogenous factors, Biochemistry and Cell Biology, Other Physical Sciences
Abstract

Fanconi anemia (FA) is a genetically heterogeneous disorder with 22 disease-causing genes reported to date. In some FA genes, monoallelic mutations have been found to be associated with breast cancer risk, while the risk associations of others remain unknown. The gene for FA type C, FANCC, has been proposed as a breast cancer susceptibility gene based on epidemiological and sequencing studies. We used the Oncoarray project to genotype two truncating FANCC variants (p.R185X and p.R548X) in 64,760 breast cancer cases and 49,793 controls of European descent. FANCC mutations were observed in 25 cases (14 with p.R185X, 11 with p.R548X) and 26 controls (18 with p.R185X, 8 with p.R548X). There was no evidence of an association with the risk of breast cancer, neither overall (odds ratio 0.77, 95%CI 0.44-1.33, p = 0.4) nor by histology, hormone receptor status, age or family history. We conclude that the breast cancer risk association of these two FANCC variants, if any, is much smaller than for BRCA1, BRCA2 or PALB2 mutations. If this applies to all truncating variants in FANCC it would suggest there are differences between FA genes in their roles on breast cancer risk and demonstrates the merit of large consortia for clarifying risk associations of rare variants.

Published
2019

28. Height and Body Mass Index as Modifiers of Breast Cancer Risk in BRCA1/2 Mutation Carriers: A Mendelian Randomization Study.

Author

Qian, Frank, Wang, Shengfeng, Mitchell, Jonathan, McGuffog, Lesley, Barrowdale, Daniel, Leslie, Goska, Oosterwijk, Jan C, Chung, Wendy K, Evans, D Gareth, Engel, Christoph, Kast, Karin, Aalfs, Cora M, Adank, Muriel A, Adlard, Julian, Agnarsson, Bjarni A, Aittomäki, Kristiina, Alducci, Elisa, Andrulis, Irene L, Arun, Banu K, Ausems, Margreet GEM, Azzollini, Jacopo, Barouk-Simonet, Emmanuelle, Barwell, Julian, Belotti, Muriel, Benitez, Javier, Berger, Andreas, Borg, Ake, Bradbury, Angela R, Brunet, Joan, Buys, Saundra S, Caldes, Trinidad, Caligo, Maria A, Campbell, Ian, Caputo, Sandrine M, Chiquette, Jocelyne, Claes, Kathleen BM, Margriet Collée, J, Couch, Fergus J, Coupier, Isabelle, Daly, Mary B, Davidson, Rosemarie, Diez, Orland, Domchek, Susan M, Donaldson, Alan, Dorfling, Cecilia M, Eeles, Ros, Feliubadaló, Lidia, Foretova, Lenka, Fowler, Jeffrey, Friedman, Eitan, Frost, Debra, Ganz, Patricia A, Garber, Judy, Garcia-Barberan, Vanesa, Glendon, Gord, Godwin, Andrew K, Gómez Garcia, Encarna B, Gronwald, Jacek, Hahnen, Eric, Hamann, Ute, Henderson, Alex, Hendricks, Carolyn B, Hopper, John L, Hulick, Peter J, Imyanitov, Evgeny N, Isaacs, Claudine, Izatt, Louise, Izquierdo, Ángel, Jakubowska, Anna, Kaczmarek, Katarzyna, Kang, Eunyoung, Karlan, Beth Y, Kets, Carolien M, Kim, Sung-Won, Kim, Zisun, Kwong, Ava, Laitman, Yael, Lasset, Christine, Hyuk Lee, Min, Won Lee, Jong, Lee, Jihyoun, Lester, Jenny, Lesueur, Fabienne, Loud, Jennifer T, Lubinski, Jan, Mebirouk, Noura, Meijers-Heijboer, Hanne EJ, Meindl, Alfons, Miller, Austin, Montagna, Marco, Mooij, Thea M, Morrison, Patrick J, Mouret-Fourme, Emmanuelle, Nathanson, Katherine L, Neuhausen, Susan L, Nevanlinna, Heli, Niederacher, Dieter, Nielsen, Finn C, Nussbaum, Robert L, and Offit, Kenneth

Subjects
GEMO Study Collaborators, HEBON, EMBRACE, Humans, Breast Neoplasms, Genetic Predisposition to Disease, BRCA1 Protein, BRCA2 Protein, Body Mass Index, Body Height, Prognosis, Risk Factors, Mutation, Polymorphism, Single Nucleotide, Adult, Female, Mendelian Randomization Analysis, Oncology & Carcinogenesis, Oncology and Carcinogenesis
Abstract

BackgroundBRCA1/2 mutations confer high lifetime risk of breast cancer, although other factors may modify this risk. Whether height or body mass index (BMI) modifies breast cancer risk in BRCA1/2 mutation carriers remains unclear.MethodsWe used Mendelian randomization approaches to evaluate the association of height and BMI on breast cancer risk, using data from the Consortium of Investigators of Modifiers of BRCA1/2 with 14 676 BRCA1 and 7912 BRCA2 mutation carriers, including 11 451 cases of breast cancer. We created a height genetic score using 586 height-associated variants and a BMI genetic score using 93 BMI-associated variants. We examined both observed and genetically determined height and BMI with breast cancer risk using weighted Cox models. All statistical tests were two-sided.ResultsObserved height was positively associated with breast cancer risk (HR = 1.09 per 10 cm increase, 95% confidence interval [CI] = 1.0 to 1.17; P = 1.17). Height genetic score was positively associated with breast cancer, although this was not statistically significant (per 10 cm increase in genetically predicted height, HR = 1.04, 95% CI = 0.93 to 1.17; P = .47). Observed BMI was inversely associated with breast cancer risk (per 5 kg/m2 increase, HR = 0.94, 95% CI = 0.90 to 0.98; P = .007). BMI genetic score was also inversely associated with breast cancer risk (per 5 kg/m2 increase in genetically predicted BMI, HR = 0.87, 95% CI = 0.76 to 0.98; P = .02). BMI was primarily associated with premenopausal breast cancer.ConclusionHeight is associated with overall breast cancer and BMI is associated with premenopausal breast cancer in BRCA1/2 mutation carriers. Incorporating height and BMI, particularly genetic score, into risk assessment may improve cancer management.

Published
2019

29. Polygenic risk modeling for prediction of epithelial ovarian cancer risk

Author

Dareng, Eileen O., Tyrer, Jonathan P., Barnes, Daniel R., Jones, Michelle R., Yang, Xin, Aben, Katja K. H., Adank, Muriel A., Agata, Simona, Andrulis, Irene L., Anton-Culver, Hoda, Antonenkova, Natalia N., Aravantinos, Gerasimos, Arun, Banu K., Augustinsson, Annelie, Balmaña, Judith, Bandera, Elisa V., Barkardottir, Rosa B., Barrowdale, Daniel, Beckmann, Matthias W., Beeghly-Fadiel, Alicia, Benitez, Javier, Bermisheva, Marina, Bernardini, Marcus Q., Bjorge, Line, Black, Amanda, Bogdanova, Natalia V., Bonanni, Bernardo, Borg, Ake, Brenton, James D., Budzilowska, Agnieszka, Butzow, Ralf, Buys, Saundra S., Cai, Hui, Caligo, Maria A., Campbell, Ian, Cannioto, Rikki, Cassingham, Hayley, Chang-Claude, Jenny, Chanock, Stephen J., Chen, Kexin, Chiew, Yoke-Eng, Chung, Wendy K., Claes, Kathleen B. M., Colonna, Sarah, Cook, Linda S., Couch, Fergus J., Daly, Mary B., Dao, Fanny, Davies, Eleanor, de la Hoya, Miguel, de Putter, Robin, Dennis, Joe, DePersia, Allison, Devilee, Peter, Diez, Orland, Ding, Yuan Chun, Doherty, Jennifer A., Domchek, Susan M., Dörk, Thilo, du Bois, Andreas, Dürst, Matthias, Eccles, Diana M., Eliassen, Heather A., Engel, Christoph, Evans, Gareth D., Fasching, Peter A., Flanagan, James M., Fortner, Renée T., Machackova, Eva, Friedman, Eitan, Ganz, Patricia A., Garber, Judy, Gensini, Francesca, Giles, Graham G., Glendon, Gord, Godwin, Andrew K., Goodman, Marc T., Greene, Mark H., Gronwald, Jacek, Hahnen, Eric, Haiman, Christopher A., Håkansson, Niclas, Hamann, Ute, Hansen, Thomas V. O., Harris, Holly R., Hartman, Mikael, Heitz, Florian, Hildebrandt, Michelle A. T., Høgdall, Estrid, Høgdall, Claus K., Hopper, John L., Huang, Ruea-Yea, Huff, Chad, Hulick, Peter J., Huntsman, David G., Imyanitov, Evgeny N., Isaacs, Claudine, Jakubowska, Anna, James, Paul A., Janavicius, Ramunas, Jensen, Allan, Johannsson, Oskar Th., John, Esther M., Jones, Michael E., Kang, Daehee, Karlan, Beth Y., Karnezis, Anthony, Kelemen, Linda E., Khusnutdinova, Elza, Kiemeney, Lambertus A., Kim, Byoung-Gie, Kjaer, Susanne K., Komenaka, Ian, Kupryjanczyk, Jolanta, Kurian, Allison W., Kwong, Ava, Lambrechts, Diether, Larson, Melissa C., Lazaro, Conxi, Le, Nhu D., Leslie, Goska, Lester, Jenny, Lesueur, Fabienne, Levine, Douglas A., Li, Lian, Li, Jingmei, Loud, Jennifer T., Lu, Karen H., Lubiński, Jan, Mai, Phuong L., Manoukian, Siranoush, Marks, Jeffrey R., Matsuno, Rayna Kim, Matsuo, Keitaro, May, Taymaa, McGuffog, Lesley, McLaughlin, John R., McNeish, Iain A., Mebirouk, Noura, Menon, Usha, Miller, Austin, Milne, Roger L., Minlikeeva, Albina, Modugno, Francesmary, Montagna, Marco, Moysich, Kirsten B., Munro, Elizabeth, Nathanson, Katherine L., Neuhausen, Susan L., Nevanlinna, Heli, Yie, Joanne Ngeow Yuen, Nielsen, Henriette Roed, Nielsen, Finn C., Nikitina-Zake, Liene, Odunsi, Kunle, Offit, Kenneth, Olah, Edith, Olbrecht, Siel, Olopade, Olufunmilayo I., Olson, Sara H., Olsson, Håkan, Osorio, Ana, Papi, Laura, Park, Sue K., Parsons, Michael T., Pathak, Harsha, Pedersen, Inge Sokilde, Peixoto, Ana, Pejovic, Tanja, Perez-Segura, Pedro, Permuth, Jennifer B., Peshkin, Beth, Peterlongo, Paolo, Piskorz, Anna, Prokofyeva, Darya, Radice, Paolo, Rantala, Johanna, Riggan, Marjorie J., Risch, Harvey A., Rodriguez-Antona, Cristina, Ross, Eric, Rossing, Mary Anne, Runnebaum, Ingo, Sandler, Dale P., Santamariña, Marta, Soucy, Penny, Schmutzler, Rita K., Setiawan, V. Wendy, Shan, Kang, Sieh, Weiva, Simard, Jacques, Singer, Christian F., Sokolenko, Anna P., Song, Honglin, Southey, Melissa C., Steed, Helen, Stoppa-Lyonnet, Dominique, Sutphen, Rebecca, Swerdlow, Anthony J., Tan, Yen Yen, Teixeira, Manuel R., Teo, Soo Hwang, Terry, Kathryn L., Terry, Mary Beth, Thomassen, Mads, Thompson, Pamela J., Thomsen, Liv Cecilie Vestrheim, Thull, Darcy L., Tischkowitz, Marc, Titus, Linda, Toland, Amanda E., Torres, Diana, Trabert, Britton, Travis, Ruth, Tung, Nadine, Tworoger, Shelley S., Valen, Ellen, van Altena, Anne M., van der Hout, Annemieke H., Van Nieuwenhuysen, Els, van Rensburg, Elizabeth J., Vega, Ana, Edwards, Digna Velez, Vierkant, Robert A., Wang, Frances, Wappenschmidt, Barbara, Webb, Penelope M., Weinberg, Clarice R., Weitzel, Jeffrey N., Wentzensen, Nicolas, White, Emily, Whittemore, Alice S., Winham, Stacey J., Wolk, Alicja, Woo, Yin-Ling, Wu, Anna H., Yan, Li, Yannoukakos, Drakoulis, Zavaglia, Katia M., Zheng, Wei, Ziogas, Argyrios, Zorn, Kristin K., Kleibl, Zdenek, Easton, Douglas, Lawrenson, Kate, DeFazio, Anna, Sellers, Thomas A., Ramus, Susan J., Pearce, Celeste L., Monteiro, Alvaro N., Cunningham, Julie, Goode, Ellen L., Schildkraut, Joellen M., Berchuck, Andrew, Chenevix-Trench, Georgia, Gayther, Simon A., Antoniou, Antonis C., and Pharoah, Paul D. P.

Published
2022
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30. The association of age at menarche and adult height with mammographic density in the International Consortium of Mammographic Density

Author

Ward, Sarah V., Burton, Anya, Tamimi, Rulla M., Pereira, Ana, Garmendia, Maria Luisa, Pollan, Marina, Boyd, Norman, dos-Santos-Silva, Isabel, Maskarinec, Gertraud, Perez-Gomez, Beatriz, Vachon, Celine, Miao, Hui, Lajous, Martín, López-Ridaura, Ruy, Bertrand, Kimberly, Kwong, Ava, Ursin, Giske, Lee, Eunjung, Ma, Huiyan, Vinnicombe, Sarah, Moss, Sue, Allen, Steve, Ndumia, Rose, Vinayak, Sudhir, Teo, Soo-Hwang, Mariapun, Shivaani, Peplonska, Beata, Bukowska-Damska, Agnieszka, Nagata, Chisato, Hopper, John, Giles, Graham, Ozmen, Vahit, Aribal, Mustafa Erkin, Schüz, Joachim, Van Gils, Carla H., Wanders, Johanna O. P., Sirous, Reza, Sirous, Mehri, Hipwell, John, Kim, Jisun, Lee, Jong Won, Dickens, Caroline, Hartman, Mikael, Chia, Kee-Seng, Scott, Christopher, Chiarelli, Anna M., Linton, Linda, Flugelman, Anath Arzee, Salem, Dorria, Kamal, Rasha, McCormack, Valerie, and Stone, Jennifer

Published
2022
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31. Correction: Management of granulomatous lobular mastitis: an international multidisciplinary consensus (2021 edition)

Author

Yuan, Qian-Qian, Xiao, Shu-Yuan, Farouk, Omar, Du, Yu-Tang, Sheybani, Fereshte, Tan, Qing Ting, Akbulut, Sami, Cetin, Kenan, Alikhassi, Afsaneh, Yaghan, Rami Jalal, Durur-Subasi, Irmak, Altintoprak, Fatih, Eom, Tae Ik, Alper, Fatih, Hasbahceci, Mustafa, Martínez-Ramos, David, Oztekin, Pelin Seher, Kwong, Ava, Pluguez-Turull, Cedric W., Brownson, Kirstyn E., Chandanwale, Shirish, Habibi, Mehran, Lan, Liu-Yi, Zhou, Rui, Zeng, Xian-Tao, Bai, Jiao, Bai, Jun-Wen, Chen, Qiong-Rong, Chen, Xing, Zha, Xiao-Ming, Dai, Wen-Jie, Dai, Zhi-Jun, Feng, Qin-Yu, Gao, Qing-Jun, Gao, Run-Fang, Han, Bao-San, Hou, Jin-Xuan, Hou, Wei, Liao, Hai-Ying, Luo, Hong, Liu, Zheng-Ren, Lu, Jing-Hua, Luo, Bin, Ma, Xiao-Peng, Qian, Jun, Qin, Jian-Yong, Wei, Wei, Wei, Gang, Xu, Li-Ying, Xue, Hui-Chao, Yang, Hua-Wei, Yang, Wei-Ge, Zhang, Chao-Jie, Zhang, Fan, Zhang, Guan-Xin, Zhang, Shao-Kun, Zhang, Shu-Qun, Zhang, Ye-Qiang, Zhang, Yue-Peng, Zhang, Sheng-Chu, Zhao, Dai-Wei, Zheng, Xiang-Min, Zheng, Le-Wei, Xu, Gao-Ran, Zhou, Wen-Bo, and Wu, Gao-Song

Published
2022
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32. Management of granulomatous lobular mastitis: an international multidisciplinary consensus (2021 edition)

Author

Yuan, Qian-Qian, Xiao, Shu-Yuan, Farouk, Omar, Du, Yu-Tang, Sheybani, Fereshte, Tan, Qing Ting, Akbulut, Sami, Cetin, Kenan, Alikhassi, Afsaneh, Yaghan, Rami Jalal, Durur-Subasi, Irmak, Altintoprak, Fatih, Eom, Tae Ik, Alper, Fatih, Hasbahceci, Mustafa, Martínez-Ramos, David, Oztekin, Pelin Seher, Kwong, Ava, Pluguez-Turull, Cedric W., Brownson, Kirstyn E., Chandanwale, Shirish, Habibi, Mehran, Lan, Liu-Yi, Zhou, Rui, Zeng, Xian-Tao, Bai, Jiao, Bai, Jun-Wen, Chen, Qiong-Rong, Chen, Xing, Zha, Xiao-Ming, Dai, Wen-Jie, Dai, Zhi-Jun, Feng, Qin-Yu, Gao, Qing-Jun, Gao, Run-Fang, Han, Bao-San, Hou, Jin-Xuan, Hou, Wei, Liao, Hai-Ying, Luo, Hong, Liu, Zheng-Ren, Lu, Jing-Hua, Luo, Bin, Ma, Xiao-Peng, Qian, Jun, Qin, Jian-Yong, Wei, Wei, Wei, Gang, Xu, Li-Ying, Xue, Hui-Chao, Yang, Hua-Wei, Yang, Wei-Ge, Zhang, Chao-Jie, Zhang, Fan, Zhang, Guan-Xin, Zhang, Shao-Kun, Zhang, Shu-Qun, Zhang, Ye-Qiang, Zhang, Yue-Peng, Zhang, Sheng-Chu, Zhao, Dai-Wei, Zheng, Xiang-Min, Zheng, Le-Wei, Xu, Gao-Ran, Zhou, Wen-Bo, and Wu, Gao-Song

Published
2022
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35. Reproductive factors and mammographic density within the International Consortium of Mammographic Density: A cross-sectional study.

Author

O'Driscoll, Jessica, Burton, Anya, Maskarinec, Gertraud, Perez-Gomez, Beatriz, Vachon, Celine, Miao, Hui, Lajous, Martín, López-Ridaura, Ruy, Eliassen, A. Heather, Pereira, Ana, Garmendia, Maria Luisa, Tamimi, Rulla M., Bertrand, Kimberly, Kwong, Ava, Ursin, Giske, Lee, Eunjung, Qureshi, Samera A., Ma, Huiyan, Vinnicombe, Sarah, and Moss, Sue

Subjects
HORMONE therapy, BODY mass index, BREAST cancer, CONSORTIA, DISEASE risk factors
Abstract

Background: Elevated mammographic density (MD) for a woman's age and body mass index (BMI) is an established breast cancer risk factor. The relationship of parity, age at first birth, and breastfeeding with MD is less clear. We examined the associations of these factors with MD within the International Consortium of Mammographic Density (ICMD). Methods: ICMD is a consortium of 27 studies with pooled individual-level epidemiological and MD data from 11,755 women without breast cancer aged 35–85 years from 22 countries, capturing 40 country-& ethnicity-specific population groups. MD was measured using the area-based tool Cumulus. Meta-analyses across population groups and pooled analyses were used to examine linear regression associations of square-root (√) transformed MD measures (percent MD (PMD), dense area (DA), and non-dense area (NDA)) with parity, age at first birth, ever/never breastfed and lifetime breastfeeding duration. Models were adjusted for age at mammogram, age at menarche, BMI, menopausal status, use of hormone replacement therapy, calibration method, mammogram view and reader, and parity and age at first birth when not the association of interest. Results: Among 10,988 women included in these analyses, 90.1% (n = 9,895) were parous, of whom 13% (n = 1,286) had ≥ five births. The mean age at first birth was 24.3 years (Standard deviation = 5.1). Increasing parity (per birth) was inversely associated with √PMD (β: − 0.05, 95% confidence interval (CI): − 0.07, − 0.03) and √DA (β: − 0.08, 95% CI: − 0.12, − 0.05) with this trend evident until at least nine births. Women who were older at first birth (per five-year increase) had higher √PMD (β:0.06, 95% CI:0.03, 0.10) and √DA (β:0.06, 95% CI:0.02, 0.10), and lower √NDA (β: − 0.06, 95% CI: − 0.11, − 0.01). In stratified analyses, this association was only evident in women who were post-menopausal at MD assessment. Among parous women, no associations were found between ever/never breastfed or lifetime breastfeeding duration (per six-month increase) and √MD. Conclusions: Associations with higher parity and older age at first birth with √MD were consistent with the direction of their respective associations with breast cancer risk. Further research is needed to understand reproductive factor-related differences in the composition of breast tissue and their associations with breast cancer risk. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Mutation Spectrum Comparison between Benign Breast Lesion Cohort, Unselected Cancer Cohort and High-Risk Breast Cancer Cohort.

Author

Kwong, Ava, Ho, Cecilia Y. S., Leung, Henry C. M., Leung, Amy W. S., Au, Chun-Hang, and Ma, Edmond S. K.

Subjects
*BREAST tumor risk factors, *RISK assessment, *HYPERPLASIA, *RESEARCH funding, *BREAST tumors, *FISHER exact test, *CANCER patients, *DESCRIPTIVE statistics, *LONGITUDINAL method, *GENETIC variation, *FIBROCYSTIC breast disease, *CANCER cells, *ONE-way analysis of variance, *GENETIC mutation, *DATA analysis software, *GENETIC testing, CONNECTIVE tissue tumors
Abstract

Simple Summary: Germline mutation rates and spectra across three cohorts of Chinese patients: a high-risk breast cancer cohort, an unselected breast cancer cohort, and a benign breast lesion cohort were compared. The high-risk cohort had the highest mutation rate at 11.9%, while the unselected cancer and benign lesion cohorts had rates of 6.5% and 8.1%, respectively. Notably, 29.3% of the unselected breast cancer patients met genetic testing criteria, and this subgroup had a mutation rate similar to the high-risk cohort. High-penetrance gene mutations were only found in the high-risk and unselected cancer cohorts. Unexpectedly, a 2% mutation rate was observed in the benign lesion cohort. These findings highlight the need for broader genetic testing of all breast cancer patients, not just those deemed high-risk, to identify more individuals harboring clinically relevant germline mutations. Mutation study for high-risk breast and ovarian cancer (HBOC) has been extensively studied in patients of different ethnicities. Here we compared the germline mutation rate and mutation spectrum of patients (n = 4341) with benign breast diseases or breast cancers, with and without other risk factors. Three cohorts of Chinese patients were recruited. The first cohort, high-risk cohort (HR, n = 3935) included high-risk breast cancer patients fulfilling high-risk HBOC criteria and who are recruited at our genetics clinic. The second cohort, unselected cancer cohort (CC, n = 307) was from general recruitment of patients with breast cancer at breast surgery clinics. The third cohort, benign breast lesion cohort (NC, n = 99) comprised 99 patients with benign breast diseases such as fibroadenoma, fibroadenomatoid hyperplasia, and intraductal papilloma. Thirty HBOC related genes were sequenced on the above-mentioned patient cohorts. The germline mutation rates of HR, CC, and NC cohort were 11.9%, 6.5%, and 8.1%, respectively. In the CC cohort, 29.3% (90/307) of patients fulfilled the National Comprehensive Cancer Network (NCCN) high-risk genetic test criteria 2022 v.2. The mutation rate for this group of patients was 11.1%, similar to that of the HR cohort, while the mutation rate for those not fulfilling testing criteria was 4.6%, like that of the NC cohort. High penetrance genes (BRCA1/2, CDH1, PALB2, PTEN, and TP53) mutations were only found in the HR (10.6%) and CC (3.3%) cohorts but were not found in the NC cohort. ATM, BRIP1, RAD51C, and RAD51D mutations were identified in all cohorts. RAD51C and RAD51D mutations showed conflicting penetrance. An unexpectedly high mutation rate of total 2% was found in the NC cohort but it was only 0.3% and 0.5% in the HR cohort and CC cohort, respectively. Our results show a clinical need to enhance genetic testing of unselected breast cancer patients to identify the high-risk patients. [ABSTRACT FROM AUTHOR]

Published
2024
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38. Germline RAD51C and RAD51D Mutations in High-Risk Chinese Breast and/or Ovarian Cancer Patients and Families.

Author

Kwong, Ava, Ho, Cecilia Yuen Sze, Au, Chun Hang, Tey, Sze Keong, and Ma, Edmond Shiu Kwan

Subjects
*HOMOLOGOUS recombination, *CANCER genetics, *GENETIC counseling, *MOLECULAR pathology, *FAMILY counseling
Abstract

Background: RAD51C and RAD51D are crucial in homologous recombination (HR) DNA repair. The prevalence of the RAD51C and RAD51D mutations in breast cancer varies across ethnic groups. Associations of RAD51C and RAD51D germline pathogenic variants (GPVs) with breast and ovarian cancer predisposition have been recently reported and are of interest. Methods: We performed multi-gene panel sequencing to study the prevalence of RAD51C and RAD51D germline mutations among 3728 patients with hereditary breast and/or ovarian cancer (HBOC). Results: We identified 18 pathogenic RAD51C and RAD51D mutation carriers, with a mutation frequency of 0.13% (5/3728) and 0.35% (13/3728), respectively. The most common recurrent mutation was RAD51D c.270_271dupTA; p.(Lys91Ilefs*13), with a mutation frequency of 0.30% (11/3728), which was also commonly identified in Asians. Only four out of six cases (66.7%) of this common mutation tested positive for homologous recombination deficiency (HRD). Conclusions: Taking the family studies in our registry and tumor molecular pathology together, we concluded that this relatively common RAD51D variant showed incomplete penetrance in our local Chinese community. Personalized genetic counseling emphasizing family history for families with this variant, as suggested at the UK Cancer Genetics Group (UKCGG) Consensus meeting, would also be appropriate in Chinese families. [ABSTRACT FROM AUTHOR]

Published
2024
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42. A Transcriptome-Wide Association Study Among 97,898 Women to Identify Candidate Susceptibility Genes for Epithelial Ovarian Cancer Risk

Author

Lu, Yingchang, Beeghly-Fadiel, Alicia, Wu, Lang, Guo, Xingyi, Li, Bingshan, Schildkraut, Joellen M, Im, Hae Kyung, Chen, Yian A, Permuth, Jennifer B, Reid, Brett M, Teer, Jamie K, Moysich, Kirsten B, Andrulis, Irene L, Anton-Culver, Hoda, Arun, Banu K, Bandera, Elisa V, Barkardottir, Rosa B, Barnes, Daniel R, Benitez, Javier, Bjorge, Line, Brenton, James, Butzow, Ralf, Caldes, Trinidad, Caligo, Maria A, Campbell, Ian, Chang-Claude, Jenny, Claes, Kathleen BM, Couch, Fergus J, Cramer, Daniel W, Daly, Mary B, deFazio, Anna, Dennis, Joe, Diez, Orland, Domchek, Susan M, Dörk, Thilo, Easton, Douglas F, Eccles, Diana M, Fasching, Peter A, Fortner, Renée T, Fountzilas, George, Friedman, Eitan, Ganz, Patricia A, Garber, Judy, Giles, Graham G, Godwin, Andrew K, Goldgar, David E, Goodman, Marc T, Greene, Mark H, Gronwald, Jacek, Hamann, Ute, Heitz, Florian, Hildebrandt, Michelle AT, Høgdall, Claus K, Hollestelle, Antoinette, Hulick, Peter J, Huntsman, David G, Imyanitov, Evgeny N, Isaacs, Claudine, Jakubowska, Anna, James, Paul, Karlan, Beth Y, Kelemen, Linda E, Kiemeney, Lambertus A, Kjaer, Susanne K, Kwong, Ava, Le, Nhu D, Leslie, Goska, Lesueur, Fabienne, Levine, Douglas A, Mattiello, Amalia, May, Taymaa, McGuffog, Lesley, McNeish, Iain A, Merritt, Melissa A, Modugno, Francesmary, Montagna, Marco, Neuhausen, Susan L, Nevanlinna, Heli, Nielsen, Finn C, Nikitina-Zake, Liene, Nussbaum, Robert L, Offit, Kenneth, Olah, Edith, Olopade, Olufunmilayo I, Olson, Sara H, Olsson, Håkan, Osorio, Ana, Park, Sue K, Parsons, Michael T, Peeters, Petra HM, Pejovic, Tanja, Peterlongo, Paolo, Phelan, Catherine M, Pujana, Miquel Angel, Ramus, Susan J, Rennert, Gad, Risch, Harvey, Rodriguez, Gustavo C, Rodríguez-Antona, Cristina, and Romieu, Isabelle

Subjects
Biological Sciences, Biomedical and Clinical Sciences, Genetics, Prevention, Human Genome, Ovarian Cancer, Rare Diseases, Cancer, 2.1 Biological and endogenous factors, Aetiology, Carcinogenesis, Carcinoma, Ovarian Epithelial, Cohort Studies, Female, Gene Expression Profiling, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Ovarian Neoplasms, Polymorphism, Single Nucleotide, Prognosis, Quantitative Trait Loci, Risk Factors, Transcriptome, Oncology and Carcinogenesis, Oncology & Carcinogenesis, Biochemistry and cell biology, Oncology and carcinogenesis
Abstract

Large-scale genome-wide association studies (GWAS) have identified approximately 35 loci associated with epithelial ovarian cancer (EOC) risk. The majority of GWAS-identified disease susceptibility variants are located in noncoding regions, and causal genes underlying these associations remain largely unknown. Here, we performed a transcriptome-wide association study to search for novel genetic loci and plausible causal genes at known GWAS loci. We used RNA sequencing data (68 normal ovarian tissue samples from 68 individuals and 6,124 cross-tissue samples from 369 individuals) and high-density genotyping data from European descendants of the Genotype-Tissue Expression (GTEx V6) project to build ovarian and cross-tissue models of genetically regulated expression using elastic net methods. We evaluated 17,121 genes for their cis-predicted gene expression in relation to EOC risk using summary statistics data from GWAS of 97,898 women, including 29,396 EOC cases. With a Bonferroni-corrected significance level of P < 2.2 × 10-6, we identified 35 genes, including FZD4 at 11q14.2 (Z = 5.08, P = 3.83 × 10-7, the cross-tissue model; 1 Mb away from any GWAS-identified EOC risk variant), a potential novel locus for EOC risk. All other 34 significantly associated genes were located within 1 Mb of known GWAS-identified loci, including 23 genes at 6 loci not previously linked to EOC risk. Upon conditioning on nearby known EOC GWAS-identified variants, the associations for 31 genes disappeared and three genes remained (P < 1.47 × 10-3). These data identify one novel locus (FZD4) and 34 genes at 13 known EOC risk loci associated with EOC risk, providing new insights into EOC carcinogenesis.Significance: Transcriptomic analysis of a large cohort confirms earlier GWAS loci and reveals FZD4 as a novel locus associated with EOC risk. Cancer Res; 78(18); 5419-30. ©2018 AACR.

Published
2018

43. Prospective evaluation of body size and breast cancer risk among BRCA1 and BRCA2 mutation carriers.

Author

Kim, Shana J, Huzarski, Tomasz, Gronwald, Jacek, Singer, Christian F, Møller, Pål, Lynch, Henry T, Armel, Susan, Karlan, Beth Y, Foulkes, William D, Neuhausen, Susan L, Senter, Leigha, Eisen, Andrea, Eng, Charis, Panchal, Seema, Pal, Tuya, Olopade, Olufunmilayo, Zakalik, Dana, Lubinski, Jan, Narod, Steven A, Kotsopoulos, Joanne, Ainsworth, Peter, Bordeleau, Louise, Tung, Nadine, Friedman, Eitan, Meschino, Wendy, Snyder, Carrie, Metcalfe, Kelly, Warner, Ellen, Rosen, Barry, Demsky, Rochelle, Weitzel, Jeffrey N, Panabaker, Karen, Couch, Fergus, Manoukian, Siranoush, Pasini, Barbara, Daly, Mary B, Steele, Linda, Saal, Howard, Fallen, Taya, Wood, Marie, McKinnon, Wendy, Lemire, Edmond, Chudley, Albert E, Serfas, Kim, Elser, Christine, Vadaparampil, Susan T, Ginsburg, Ophira, Cullinane, Carey A, Blum, Joanne L, Ross, Theodora, Mauer, Caitlin, Kwong, Ava, Cybulski, Cezary, McCuaig, Jeanna, Rayson, Daniel, and Isaacs, Claudine

Subjects
Cancer, Aging, Nutrition, Prevention, Breast Cancer, Obesity, Clinical Research, Aetiology, 2.2 Factors relating to the physical environment, BMI, body size, breast cancer, BRCA, hereditary cancer, Hereditary Breast Cancer Clinical Study Group, Statistics, Public Health and Health Services, Epidemiology
Abstract

BACKGROUND:Although evidence suggests that larger body size in early life confers lifelong protection from developing breast cancer, few studies have investigated the relationship between body size and breast cancer risk among BRCA mutation carriers. Therefore, we conducted a prospective evaluation of body size and the risk of breast cancer among BRCA mutation carriers. METHODS:Current height and body mass index (BMI) at age 18 were determined from baseline questionnaires. Current BMI and weight change since age 18 were calculated from updated biennial follow-up questionnaires. Cox proportional hazards models were used to estimate the hazard ratio (HR) and 95% confidence interval (CI). RESULTS:Among 3734 BRCA mutation carriers, there were 338 incident breast cancers over a mean follow-up of 5.5 years. There was no association between height, current BMI or weight change and breast cancer risk. Women with BMI at age 18 ≥22.1 kg/m2 had a decreased risk of developing post-menopausal breast cancer compared with women with a BMI at age 18 between 18.8 and 20.3 kg/m2 (HR 0.49; 95% CI 0.30-0.82; P = 0.006). BMI at age 18 was not associated with risk of pre-menopausal breast cancer. CONCLUSIONS:There was no observed association between height, current BMI and weight change and risk of breast cancer. The inverse relationship between greater BMI at age 18 and post-menopausal breast cancer further supports a role of early rather than current or adulthood exposures for BRCA-associated breast cancer development. Future studies with longer follow-up and additional measures of adiposity are necessary to confirm these findings.

Published
2018

44. Mutational spectrum in a worldwide study of 29,700 families with BRCA1 or BRCA2 mutations.

Author

Rebbeck, Timothy R, Friebel, Tara M, Friedman, Eitan, Hamann, Ute, Huo, Dezheng, Kwong, Ava, Olah, Edith, Olopade, Olufunmilayo I, Solano, Angela R, Teo, Soo-Hwang, Thomassen, Mads, Weitzel, Jeffrey N, Chan, TL, Couch, Fergus J, Goldgar, David E, Kruse, Torben A, Palmero, Edenir Inêz, Park, Sue Kyung, Torres, Diana, van Rensburg, Elizabeth J, McGuffog, Lesley, Parsons, Michael T, Leslie, Goska, Aalfs, Cora M, Abugattas, Julio, Adlard, Julian, Agata, Simona, Aittomäki, Kristiina, Andrews, Lesley, Andrulis, Irene L, Arason, Adalgeir, Arnold, Norbert, Arun, Banu K, Asseryanis, Ella, Auerbach, Leo, Azzollini, Jacopo, Balmaña, Judith, Barile, Monica, Barkardottir, Rosa B, Barrowdale, Daniel, Benitez, Javier, Berger, Andreas, Berger, Raanan, Blanco, Amie M, Blazer, Kathleen R, Blok, Marinus J, Bonadona, Valérie, Bonanni, Bernardo, Bradbury, Angela R, Brewer, Carole, Buecher, Bruno, Buys, Saundra S, Caldes, Trinidad, Caliebe, Almuth, Caligo, Maria A, Campbell, Ian, Caputo, Sandrine M, Chiquette, Jocelyne, Chung, Wendy K, Claes, Kathleen BM, Collée, J Margriet, Cook, Jackie, Davidson, Rosemarie, de la Hoya, Miguel, De Leeneer, Kim, de Pauw, Antoine, Delnatte, Capucine, Diez, Orland, Ding, Yuan Chun, Ditsch, Nina, Domchek, Susan M, Dorfling, Cecilia M, Velazquez, Carolina, Dworniczak, Bernd, Eason, Jacqueline, Easton, Douglas F, Eeles, Ros, Ehrencrona, Hans, Ejlertsen, Bent, EMBRACE, Engel, Christoph, Engert, Stefanie, Evans, D Gareth, Faivre, Laurence, Feliubadaló, Lidia, Ferrer, Sandra Fert, Foretova, Lenka, Fowler, Jeffrey, Frost, Debra, Galvão, Henrique CR, Ganz, Patricia A, Garber, Judy, Gauthier-Villars, Marion, Gehrig, Andrea, GEMO Study Collaborators, Gerdes, Anne-Marie, Gesta, Paul, Giannini, Giuseppe, Giraud, Sophie, and Glendon, Gord

Subjects
EMBRACE, GEMO Study Collaborators, HEBON, Humans, BRCA1 Protein, BRCA2 Protein, Family, Mutation, Geography, Internationality, Databases, Genetic, BRCA1, BRCA2, breast cancer, ethnicity, geography, mutation, ovarian cancer, Databases, Genetic, Genetics & Heredity, Genetics, Clinical Sciences
Abstract

The prevalence and spectrum of germline mutations in BRCA1 and BRCA2 have been reported in single populations, with the majority of reports focused on White in Europe and North America. The Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA) has assembled data on 18,435 families with BRCA1 mutations and 11,351 families with BRCA2 mutations ascertained from 69 centers in 49 countries on six continents. This study comprehensively describes the characteristics of the 1,650 unique BRCA1 and 1,731 unique BRCA2 deleterious (disease-associated) mutations identified in the CIMBA database. We observed substantial variation in mutation type and frequency by geographical region and race/ethnicity. In addition to known founder mutations, mutations of relatively high frequency were identified in specific racial/ethnic or geographic groups that may reflect founder mutations and which could be used in targeted (panel) first pass genotyping for specific populations. Knowledge of the population-specific mutational spectrum in BRCA1 and BRCA2 could inform efficient strategies for genetic testing and may justify a more broad-based oncogenetic testing in some populations.

Published
2018

45. Rapid detection of BRCA1/2 recurrent mutations in Chinese breast and ovarian cancer patients with multiplex SNaPshot genotyping panels

Author

Kwong, Ava, Ho, John CW, Shin, Vivian Y, Kurian, Allison W, Tai, Edmund, Esserman, Laura J, Weitzel, Jeffery N, Lin, Po-Han, Field, Michael, Domchek, Susan M, Lo, Jessica, Ngan, Hextan YS, S.K., Edmond, Chan, Tsun L, and Ford, James M

Subjects
Genetics, Rare Diseases, Breast Cancer, Genetic Testing, Cancer, Ovarian Cancer, Clinical Research, Prevention, 4.1 Discovery and preclinical testing of markers and technologies, Detection, screening and diagnosis, BRCA1/2, breast cancer, genetic testing, mutation, ovarian cancer, Oncology and Carcinogenesis
Abstract

BRCA1/2 mutations are significant risk factors for hereditary breast and ovarian cancer (HBOC), its mutation frequency in HBOC of Chinese ethnicity is around 9%, in which nearly half are recurrent mutations. In Hong Kong and China, genetic testing and counseling are not as common as in the West. To reduce the barrier of testing, a multiplex SNaPshot genotyping panel that targeted 25 Chinese BRCA1/2 mutation hotspots was developed, and its feasibility was evaluated in a local cohort of 441 breast and 155 ovarian cancer patients. For those who tested negative, they were then subjected to full-gene testing with next-generation sequencing (NGS). BRCA mutation prevalence in this cohort was 8.05% and the yield of the recurrent panel was 3.52%, identifying over 40% of the mutation carriers. Moreover, from 79 Chinese breast cancer cases recruited overseas, 2 recurrent mutations and one novel BRCA2 mutation were detected by the panel and NGS respectively. The developed genotyping panel showed to be an easy-to-perform and more affordable testing tool that can provide important contributions to improve the healthcare of Chinese women with cancer as well as family members that harbor high risk mutations for HBOC.

Published
2018

46. Analysis of the pan-Asian subgroup of patients in the NALA Trial: a randomized phase III NALA Trial comparing neratinib+capecitabine (N+C) vs lapatinib+capecitabine (L+C) in patients with HER2+metastatic breast cancer (mBC) previously treated with two or more HER2-directed regimens

Author

Dai, Ming Shen, Feng, Yin Hsun, Chen, Shang Wen, Masuda, Norikazu, Yau, Thomas, Chen, Shou Tung, Lu, Yen Shen, Yap, Yoon Sim, Ang, Peter C. S., Chu, Sung Chao, Kwong, Ava, Lee, Keun Seok, Ow, Samuel, Kim, Sung Bae, Lin, Johnson, Chung, Hyun Cheol, Ngan, Roger, Kok, Victor C., Rau, Kun Ming, Sangai, Takafumi, Ng, Ting Ying, Tseng, Ling Ming, Bryce, Richard, Bebchuk, Judith, Chen, Mei Chieh, and Hou, Ming Feng

Published
2021
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49. Male breast cancer in BRCA1 and BRCA2 mutation carriers: pathology data from the Consortium of Investigators of Modifiers of BRCA1/2

Author

Silvestri, Valentina, Barrowdale, Daniel, Mulligan, Anna Marie, Neuhausen, Susan L, Fox, Stephen, Karlan, Beth Y, Mitchell, Gillian, James, Paul, Thull, Darcy L, Zorn, Kristin K, Carter, Natalie J, Nathanson, Katherine L, Domchek, Susan M, Rebbeck, Timothy R, Ramus, Susan J, Nussbaum, Robert L, Olopade, Olufunmilayo I, Rantala, Johanna, Yoon, Sook-Yee, Caligo, Maria A, Spugnesi, Laura, Bojesen, Anders, Pedersen, Inge Sokilde, Thomassen, Mads, Jensen, Uffe Birk, Toland, Amanda Ewart, Senter, Leigha, Andrulis, Irene L, Glendon, Gord, Hulick, Peter J, Imyanitov, Evgeny N, Greene, Mark H, Mai, Phuong L, Singer, Christian F, Rappaport-Fuerhauser, Christine, Kramer, Gero, Vijai, Joseph, Offit, Kenneth, Robson, Mark, Lincoln, Anne, Jacobs, Lauren, Machackova, Eva, Foretova, Lenka, Navratilova, Marie, Vasickova, Petra, Couch, Fergus J, Hallberg, Emily, Ruddy, Kathryn J, Sharma, Priyanka, Kim, Sung-Won, kConFab Investigators, Teixeira, Manuel R, Pinto, Pedro, Montagna, Marco, Matricardi, Laura, Arason, Adalgeir, Johannsson, Oskar Th, Barkardottir, Rosa B, Jakubowska, Anna, Lubinski, Jan, Izquierdo, Angel, Pujana, Miguel Angel, Balmaña, Judith, Diez, Orland, Ivady, Gabriella, Papp, Janos, Olah, Edith, Kwong, Ava, Hereditary Breast and Ovarian Cancer Research Group Netherlands (HEBON), Nevanlinna, Heli, Aittomäki, Kristiina, Perez Segura, Pedro, Caldes, Trinidad, Van Maerken, Tom, Poppe, Bruce, Claes, Kathleen BM, Isaacs, Claudine, Elan, Camille, Lasset, Christine, Stoppa-Lyonnet, Dominique, Barjhoux, Laure, Belotti, Muriel, Meindl, Alfons, Gehrig, Andrea, Sutter, Christian, Engel, Christoph, Niederacher, Dieter, Steinemann, Doris, Hahnen, Eric, Kast, Karin, Arnold, Norbert, Varon-Mateeva, Raymonda, Wand, Dorothea, Godwin, Andrew K, Evans, D Gareth, Frost, Debra, Perkins, Jo, Adlard, Julian, Izatt, Louise, and Platte, Radka

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Oncology and Carcinogenesis, Breast Cancer, Cancer, 2.1 Biological and endogenous factors, Aetiology, Adult, Aged, BRCA1 Protein, BRCA2 Protein, Breast Neoplasms, Breast Neoplasms, Male, Female, Genetic Predisposition to Disease, Humans, Male, Middle Aged, Mutation, Neoplasm Staging, Polymorphism, Single Nucleotide, Male breast cancer, BRCA1/2, Pathology, Histologic grade, Genotype-phenotype correlations, kConFab Investigators, Hereditary Breast and Ovarian Cancer Research Group Netherlands, EMBRACE, Oncology & Carcinogenesis, Oncology and carcinogenesis
Abstract

BackgroundBRCA1 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).MethodsWe 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.ResultsAmong 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)).ConclusionsOn 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.

Published
2016

50. Inheritance of deleterious mutations at both BRCA1 and BRCA2 in an international sample of 32,295 women.

Author

Rebbeck, Timothy R, Friebel, Tara M, Mitra, Nandita, Wan, Fei, Chen, Stephanie, Andrulis, Irene L, Apostolou, Paraskevi, Arnold, Norbert, Arun, Banu K, Barrowdale, Daniel, Benitez, Javier, Berger, Raanan, Berthet, Pascaline, Borg, Ake, Buys, Saundra S, Caldes, Trinidad, Carter, Jonathan, Chiquette, Jocelyne, Claes, Kathleen BM, Couch, Fergus J, Cybulski, Cezary, Daly, Mary B, de la Hoya, Miguel, Diez, Orland, Domchek, Susan M, Nathanson, Katherine L, Durda, Katarzyna, Ellis, Steve, EMBRACE, Evans, D Gareth, Foretova, Lenka, Friedman, Eitan, Frost, Debra, Ganz, Patricia A, Garber, Judy, Glendon, Gord, Godwin, Andrew K, Greene, Mark H, Gronwald, Jacek, Hahnen, Eric, Hallberg, Emily, Hamann, Ute, Hansen, Thomas VO, HEBON, Imyanitov, Evgeny N, Isaacs, Claudine, Jakubowska, Anna, Janavicius, Ramunas, Jaworska-Bieniek, Katarzyna, John, Esther M, Karlan, Beth Y, Kaufman, Bella, Investigators, KConFab, Kwong, Ava, Laitman, Yael, Lasset, Christine, Lazaro, Conxi, Lester, Jenny, Loman, Niklas, Lubinski, Jan, Manoukian, Siranoush, Mitchell, Gillian, Montagna, Marco, Neuhausen, Susan L, Nevanlinna, Heli, Niederacher, Dieter, Nussbaum, Robert L, Offit, Kenneth, Olah, Edith, Olopade, Olufunmilayo I, Park, Sue Kyung, Piedmonte, Marion, Radice, Paolo, Rappaport-Fuerhauser, Christine, Rookus, Matti A, Seynaeve, Caroline, Simard, Jacques, Singer, Christian F, Soucy, Penny, Southey, Melissa, Stoppa-Lyonnet, Dominique, Sukiennicki, Grzegorz, Szabo, Csilla I, Tancredi, Mariella, Teixeira, Manuel R, Teo, Soo-Hwang, Terry, Mary Beth, Thomassen, Mads, Tihomirova, Laima, Tischkowitz, Marc, Toland, Amanda Ewart, Toloczko-Grabarek, Aleksandra, Tung, Nadine, van Rensburg, Elizabeth J, Villano, Danylo, Wang-Gohrke, Shan, Wappenschmidt, Barbara, Weitzel, Jeffrey N, Zidan, Jamal, and Zorn, Kristin K

Subjects
EMBRACE, HEBON, Humans, Breast Neoplasms, Population Surveillance, Heterozygote, Phenotype, Loss of Heterozygosity, Germ-Line Mutation, Alleles, Genes, BRCA1, Genes, BRCA2, Exons, Female, Promoter Regions, Genetic, BRCA1, BRCA2, Hereditary breast and ovarian cancer, Transheterozygosity, Genes, Promoter Regions, Genetic, Clinical Research, Breast Cancer, Cancer, 2.1 Biological and endogenous factors, Oncology & Carcinogenesis, Oncology and Carcinogenesis
Abstract

BackgroundMost BRCA1 or BRCA2 mutation carriers have inherited a single (heterozygous) mutation. Transheterozygotes (TH) who have inherited deleterious mutations in both BRCA1 and BRCA2 are rare, and the consequences of transheterozygosity are poorly understood.MethodsFrom 32,295 female BRCA1/2 mutation carriers, we identified 93 TH (0.3 %). "Cases" were defined as TH, and "controls" were single mutations at BRCA1 (SH1) or BRCA2 (SH2). Matched SH1 "controls" carried a BRCA1 mutation found in the TH "case". Matched SH2 "controls" carried a BRCA2 mutation found in the TH "case". After matching the TH carriers with SH1 or SH2, 91 TH were matched to 9316 SH1, and 89 TH were matched to 3370 SH2.ResultsThe majority of TH (45.2 %) involved the three common Jewish mutations. TH were more likely than SH1 and SH2 women to have been ever diagnosed with breast cancer (BC; p = 0.002). TH were more likely to be diagnosed with ovarian cancer (OC) than SH2 (p = 0.017), but not SH1. Age at BC diagnosis was the same in TH vs. SH1 (p = 0.231), but was on average 4.5 years younger in TH than in SH2 (p

Published
2016

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