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2. The Zebrafish as an Emerging Model to Study DNA Damage in Aging, Cancer and Other Diseases

Author

Maria Luisa Cayuela, Kathleen B. M. Claes, Miguel Godinho Ferreira, Catarina Martins Henriques, Fredericus van Eeden, Máté Varga, Jeroen Vierstraete, and Maria Caterina Mione

Subjects
zebrafish, DDR, aging, telomeres, cancer, genome maintenance, Biology (General), QH301-705.5
Abstract

Cancer is a disease of the elderly, and old age is its largest risk factor. With age, DNA damage accumulates continuously, increasing the chance of malignant transformation. The zebrafish has emerged as an important vertebrate model to study these processes. Key mechanisms such as DNA damage responses and cellular senescence can be studied in zebrafish throughout its life course. In addition, the zebrafish is becoming an important resource to study telomere biology in aging, regeneration and cancer. Here we review some of the tools and resources that zebrafish researchers have developed and discuss their potential use in the study of DNA damage, cancer and aging related diseases.

Published
2019
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3. Polygenic risk scores and breast and epithelial ovarian cancer risks for carriers of BRCA1 and BRCA2 pathogenic variants

Author

Daniel R. Barnes, Matti A. Rookus, Lesley McGuffog, Goska Leslie, Thea M. Mooij, Joe Dennis, Nasim Mavaddat, Julian Adlard, Munaza Ahmed, Kristiina Aittomäki, Nadine Andrieu, Irene L. Andrulis, Norbert Arnold, Banu K. Arun, Jacopo Azzollini, Judith Balmaña, Rosa B. Barkardottir, Daniel Barrowdale, Javier Benitez, Pascaline Berthet, Katarzyna Białkowska, Amie M. Blanco, Marinus J. Blok, Bernardo Bonanni, Susanne E. Boonen, Åke Borg, Aniko Bozsik, Angela R. Bradbury, Paul Brennan, Carole Brewer, Joan Brunet, Saundra S. Buys, Trinidad Caldés, Maria A. Caligo, Ian Campbell, Lise Lotte Christensen, Wendy K. Chung, Kathleen B.M. Claes, Chrystelle Colas, Marie-Agnès Collonge-Rame, Capucine Delnatte, Laurence Faivre, Sophie Giraud, Christine Lasset, Véronique Mari, Noura Mebirouk, Emmanuelle Mouret-Fourme, Hélène Schuster, Dominique Stoppa-Lyonnet, Antonis Antoniou, Jackie Cook, Rosemarie Davidson, Douglas Easton, Ros Eeles, D. Gareth Evans, Debra Frost, Helen Hanson, Louise Izatt, Kai-ren Ong, Lucy Side, Aoife O’Shaughnessy-Kirwan, Marc Tischkowitz, Lisa Walker, Mary B. Daly, Miguel de la Hoya, Robin de Putter, Peter Devilee, Orland Diez, Yuan Chun Ding, Susan M. Domchek, Cecilia M. Dorfling, Martine Dumont, Bent Ejlertsen, Christoph Engel, Lenka Foretova, Florentia Fostira, Michael Friedlander, Eitan Friedman, Patricia A. Ganz, Judy Garber, Andrea Gehrig, Anne-Marie Gerdes, Paul Gesta, Gord Glendon, Andrew K. Godwin, David E. Goldgar, Anna González-Neira, Mark H. Greene, Daphne Gschwantler-Kaulich, Eric Hahnen, Ute Hamann, Julia Hentschel, Frans B.L. Hogervorst, Maartje J. Hooning, Judit Horvath, Chunling Hu, Peter J. Hulick, Evgeny N. Imyanitov, Georgia Chenevix-Trench, Kelly-Anne Phillips, Amanda Spurdle, Marinus Blok, Frans Hogervorst, Maartje Hooning, Marco Koudijs, Arjen Mensenkamp, Hanne Meijers-Heijboer, Matti Rookus, Klaartje van Engelen, Catherine Noguès, Claudine Isaacs, Angel Izquierdo, Anna Jakubowska, Paul A. James, Ramunas Janavicius, Esther M. John, Vijai Joseph, Beth Y. Karlan, Karin Kast, Torben A. Kruse, Ava Kwong, Yael Laitman, Conxi Lazaro, Jenny Lester, Fabienne Lesueur, Annelie Liljegren, Jennifer T. Loud, Jan Lubiński, Phuong L. Mai, Siranoush Manoukian, Hanne E.J. Meijers-Heijboer, Alfons Meindl, Arjen R. Mensenkamp, Austin Miller, Marco Montagna, Semanti Mukherjee, Anna Marie Mulligan, Katherine L. Nathanson, Susan L. Neuhausen, Heli Nevanlinna, Dieter Niederacher, Finn Cilius Nielsen, Liene Nikitina-Zake, Edith Olah, Olufunmilayo I. Olopade, Ana Osorio, Claus-Eric Ott, Laura Papi, Sue K. Park, Michael T. Parsons, Inge Sokilde Pedersen, Bernard Peissel, Ana Peixoto, Paolo Peterlongo, Georg Pfeiler, Karolina Prajzendanc, Miquel Angel Pujana, Paolo Radice, Juliane Ramser, Susan J. Ramus, Johanna Rantala, Gad Rennert, Harvey A. Risch, Mark Robson, Karina Rønlund, Ritu Salani, Leigha Senter, Payal D. Shah, Priyanka Sharma, Lucy E. Side, Christian F. Singer, Thomas P. Slavin, Penny Soucy, Melissa C. Southey, Amanda B. Spurdle, Doris Steinemann, Zoe Steinsnyder, Christian Sutter, Yen Yen Tan, Manuel R. Teixeira, Soo Hwang Teo, Darcy L. Thull, Silvia Tognazzo, Amanda E. Toland, Alison H. Trainer, Nadine Tung, Elizabeth J. van Rensburg, Ana Vega, Jeroen Vierstraete, Gabriel Wagner, Shan Wang-Gohrke, Barbara Wappenschmidt, Jeffrey N. Weitzel, Siddhartha Yadav, Xin Yang, Drakoulis Yannoukakos, Dario Zimbalatti, Kenneth Offit, Mads Thomassen, Fergus J. Couch, Rita K. Schmutzler, Jacques Simard, Douglas F. Easton, Antonis C. Antoniou, Pediatric surgery, Human genetics, CCA - Cancer biology and immunology, CCA - Cancer Treatment and quality of life, Amsterdam Reproduction & Development (AR&D), Apollo - University of Cambridge Repository, University of Cambridge [UK] (CAM), Netherlands Cancer Institute (NKI), Antoni van Leeuwenhoek Hospital, Chapel Allerton Hospital, Great Ormond Street Hospital for Children [London] (GOSH), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Cancer et génome: Bioinformatique, biostatistiques et épidémiologie d'un système complexe, Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Curie [Paris], Université Paris sciences et lettres (PSL), Mount Sinai Hospital [Toronto, Canada] (MSH), University of Toronto (University of Toronto), Christian-Albrechts University of Kiel, The University of Texas M.D. Anderson Cancer Center [Houston], Fondazione IRCCS Istituto Nazionale Tumori - National Cancer Institute [Milan], Vall d'Hebron Institute of Oncology [Barcelone] (VHIO), Vall d'Hebron University Hospital [Barcelona], Landspitali National University Hospital of Iceland, University of Iceland [Reykjavik], CIBER de Enfermedades Raras (CIBERER), Spanish National Cancer Research Center (CNIO), Centre Régional de Lutte contre le Cancer François Baclesse [Caen] (UNICANCER/CRLC), Normandie Université (NU)-UNICANCER-Tumorothèque de Caen Basse-Normandie (TCBN), Pomeranian Medical University [Szczecin] (PUM), University of California (UC), Maastricht University Medical Centre (MUMC), Maastricht University [Maastricht], European Institute of Oncology IRCCS [Milan, Italy] (EIO), Zealand University Hospital [Roskilde, Denmark], Lund University [Lund], National Institute of Oncology [Budapest, Hungary], Abramson Cancer Center [philadelphia], University of Pennsylvania-Perelman School of Medicine, University of Pennsylvania, Institute of Genetic Medicine [Newcastle], Newcastle University [Newcastle], Royal Devon & Exeter Hospital, Exeter, UK, Catalan Institute of Oncology [Barcelone, Espagne], Huntsman Cancer Institute [Salt Lake City], University of Utah, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos [Madrid, Spain] (IdISSC), Pisa University Hospital, Peter MacCallum Cancer Centre [Melbourne, Australie], University of Melbourne, Aarhus University Hospital, Columbia University [New York], Ghent University Hospital, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Sheffield Children's NHS Foundation Trust, Fox Chase Cancer Center, Queen Elizabeth University Hospital (Glasgow), Centre hospitalier universitaire de Nantes (CHU Nantes), Leiden University Medical Center (LUMC), Beckman Research Institute of the City of Hope, Abramson Cancer Center, University of Pretoria [South Africa], Centre Hospitalier Universitaire de Québec Research Center [Canada], Royal Marsden NHS Foundation Trust, Copenhagen University Hospital, Leipzig University, University of Manchester [Manchester], Manchester Academic Health Science Centre (MAHSC), Centre Régional de Lutte contre le cancer Georges-François Leclerc [Dijon] (UNICANCER/CRLCC-CGFL), UNICANCER, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Masaryk Memorial Cancer Institute (MMCI), Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety (INRASTES), National Center for Scientific Research 'Demokritos' (NCSR), NHMRC Clinical Trials Centre [Camperdown NSW 2050, Australie], Chaim Sheba Medical Center, Tel Aviv University (TAU), Jonsson Comprehensive Cancer Center, University of California [Los Angeles] (UCLA), University of California (UC)-University of California (UC), Dana-Farber Cancer Institute [Boston], University of Würzburg, Rigshospitalet [Copenhagen], Centre Hospitalier Georges Renon [Niort] (CH Georges Renon Niort), Hospices Civils de Lyon (HCL), University of Kansas [Kansas City], National Cancer Institute [Bethesda] (NCI-NIH), National Institutes of Health [Bethesda] (NIH), Medizinische Universität Wien = Medical University of Vienna, University of Cologne, German Cancer Research Center - Deutsches Krebsforschungszentrum [Heidelberg] (DKFZ), Lancashire NHS Foundation Trust, University Hospital Leipzig, Department of Medical Oncology, Family Cancer Clinic, Erasmus University Medical Center [Rotterdam] (Erasmus MC), Westfälische Wilhelms-Universität Münster = University of Münster (WWU), Mayo Clinic, NorthShore University HealthSystem [Evanston, IL, USA], The University of Chicago Medicine [Chicago], N. N. Petrov Institute of Oncology, Georgetown Lombardi Comprehensive Cancer Center, Guy's and St Thomas' NHS Foundation Trust [London, UK], Peter MacCallum Cancer Center, East Melbourne, Peter MacCallum Cancer Center, Vilnius University [Vilnius], The State Scientific Research Institute Nature Research Centre, Vilnius, Lithuania, Stanford University School of Medicine [CA, USA], Memorial Sloane Kettering Cancer Center [New York], Cedars-Sinai Medical Center, Technische Universität Dresden = Dresden University of Technology (TU Dresden), University Medical Center [Utrecht], Odense University Hospital [Odense, Denmark], The Hong Kong Hereditary Breast Cancer Family Registry, The University of Hong Kong (HKU), Hong Kong Sanatorium and Hospital [Hong Kong] (HKSH), Equipe de prévention et épidémiologie génétique, Centre Léon Bérard [Lyon], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), David Geffen School of Medicine [Los Angeles], Fondation MINES ParisTech, Karolinska Institutet [Stockholm], University of Pittsburgh School of Medicine, Pennsylvania Commonwealth System of Higher Education (PCSHE), Centre de Lutte contre le Cancer Antoine Lacassagne [Nice] (UNICANCER/CAL), UNICANCER-Université Côte d'Azur (UCA), Amsterdam UMC - Amsterdam University Medical Center, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Radboud University Medical Center [Nijmegen], Roswell Park Cancer Institute [Buffalo], Veneto Institute of Oncology IOV-IRCCS [Padua, Italy], University of Toronto, University Health Network, University Hospital Düsseldorf, Latvian Biomedical Research and Study Centre [Rīga], Sciences Economiques et Sociales de la Santé & Traitement de l'Information Médicale (SESSTIM - U1252 INSERM - Aix Marseille Univ - UMR 259 IRD), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Paoli-Calmettes, Fédération nationale des Centres de lutte contre le Cancer (FNCLCC), University of Chicago, Birmingham Women's and Children's NHS Foundation Trust, Cambridge University Hospitals - NHS (CUH), Charité Campus Virchow-Klinikum (CVK), Università degli Studi di Firenze = University of Florence (UniFI), Seoul National University College of Medicine [Séoul, Corée du Sud] (SNUCM), Seoul National University [Seoul] (SNU), QIMR Berghofer Medical Research Institute, Aalborg University [Denmark] (AAU), IRCCS Istituto Nazionale dei Tumori [Milano], Instituto Português de Oncologia do Porto / Portuguese Oncology Institute of Porto (IPO Porto), IFOM, Istituto FIRC di Oncologia Molecolare (IFOM), Institut d'Investigació Biomèdica de Bellvitge [Barcelone] (IDIBELL), Klinikum rechts der Isar [Munich, Germany], University of New South Wales [Sydney] (UNSW), Garvan Institute of medical research, Technion Faculty of Medicine [Haifa, Israel], Yale School of Medicine [New Haven, Connecticut] (YSM), Vejle Hospital [Danemark], Ohio State University [Columbus] (OSU), Centre de lutte contre le cancer Paul-Strauss, Institut de Cancérologie de Strasbourg Europe (ICANS), Immuno-Rhumatologie Moléculaire, Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM), University of Kansas Medical Center [Kansas City, KS, USA], Princess Anne Hospital, City of Hope Comprehensive Cancer Center [Duarte], Monash University [Clayton], Cancer Council Victoria [Melbourne, VIC, Australia], Hannover Medical School [Hannover] (MHH), Unité de génétique et biologie des cancers (U830), Institut Curie [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris Descartes - Paris 5 (UPD5), Heidelberg University Hospital [Heidelberg], Institute of Biomedical Sciences Abel Salazar - ICBAS [Porto, Portugal], Malaysia and University Malaya Cancer Research Institute, Faculty of Medicine, University of Malaya [Kuala Lumpur, Malaisie], University of Malaya = Universiti Malaya [Kuala Lumpur, Malaisie] (UM), McGill University = Université McGill [Montréal, Canada], Beth Israel Deaconess Medical Center [Boston] (BIDMC), Harvard Medical School [Boston] (HMS), Fundación Pública Galega Medicina Xenómica - SERGAS [Santiago de Compostela, Spain] (Grupo de Medicina Xenómica), CIBER de Enfermedades Raras (CIBERER)-Universidade de Santiago de Compostela [Spain] (USC ), Instituto de Investigaciones Sanitarias, Universidade de Santiago de Compostela [Spain] (USC ), Universiteit Gent = Ghent University (UGENT), Oxford University Hospitals NHS Trust, University of Oxford, Universitätsklinikum Ulm - University Hospital of Ulm, University Hospital of Cologne [Cologne], Mayo Clinic [Rochester], Collaborators : Pascaline Berthet, Chrystelle Colas, Marie-Agnès Collonge-Rame, Capucine Delnatte, Laurence Faivre, Sophie Giraud, Christine Lasset, Véronique Mari, Noura Mebirouk, Emmanuelle Mouret-Fourme, Hélène Schuster, Dominique Stoppa-Lyonnet, Julian Adlard, Munaza Ahmed, Antonis Antoniou, Daniel Barrowdale, Paul Brennan, Carole Brewer, Jackie Cook, Rosemarie Davidson, Douglas Easton, Ros Eeles, D Gareth Evans, Debra Frost, Helen Hanson, Louise Izatt, Kai-Ren Ong, Lucy Side, Aoife O'Shaughnessy-Kirwan, Marc Tischkowitz, Lisa Walker, Georgia Chenevix-Trench, Kelly-Anne Phillips, Amanda Spurdle, Marinus Blok, Peter Devilee, Frans Hogervorst, Maartje Hooning, Marco Koudijs, Arjen Mensenkamp, Hanne Meijers-Heijboer, Matti Rookus, Klaartje van Engelen, Nadine Andrieu, Catherine Noguès, Dupuis, Christine, Institut Català de la Salut, [Barnes DR, McGuffog L, Leslie G, Dennis J] Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK. [Rookus MA, Mooij TM] The Netherlands Cancer Institute, Department of Epidemiology (PSOE), Amsterdam, The Netherlands. [Balmaña J] High Risk and Cancer Prevention Group, Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Servei d’Oncologia Mèdica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Diez O] Oncogenetics Group, Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Àrea de Genètica Clínica i Molecular, Vall d’Hebron Hospital Universitari, Barcelona, Spain, Vall d'Hebron Barcelona Hospital Campus, Barnes, Daniel [0000-0002-3781-7570], Leslie, Goska [0000-0001-5756-6222], Dennis, Joe [0000-0003-4591-1214], Mavaddat, Nasim [0000-0003-0307-055X], RS: GROW - R4 - Reproductive and Perinatal Medicine, MUMC+: DA KG Lab Centraal Lab (9), Universiteit Leiden, Roswell Park Cancer Institute [Buffalo] (RPCI), Medical Oncology, Medicum, Kristiina Aittomäki / Principal Investigator, HUSLAB, Department of Medical and Clinical Genetics, Helsinki University Hospital Area, Department of Obstetrics and Gynecology, Biosciences, HUS Gynecology and Obstetrics, University of Helsinki, Institut Curie [Paris]-MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Santé et de la Recherche Médicale (INSERM), MINES ParisTech - École nationale supérieure des mines de Paris, UNICANCER-Tumorothèque de Caen Basse-Normandie (TCBN)-Normandie Université (NU), Pomeranian Medical University, University of California, University of Pennsylvania [Philadelphia]-Perelman School of Medicine, University of Pennsylvania [Philadelphia], University of Leipzig [Leipzig, Allemagne], Masaryk Memorial Cancer Institute (RECAMO), Tel Aviv University [Tel Aviv], University of California-University of California, University of Münster, Amsterdam UMC, Technical University of Munich (TUM), Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Garvan Institute of Medical Research [Sydney, Australia], Yale University School of Medicine, Vejle Hospital, University of Kansas Medical Center [Lawrence], Université Paris Descartes (Paris 5), University of Malaya [Kuala Lumpur, Malaisie], Universiteit Gent = Ghent University [Belgium] (UGENT), and University of Oxford [Oxford]

Subjects
0301 basic medicine, Oncology, endocrine system diseases, Neoplasms::Neoplasms by Site::Breast Neoplasms [DISEASES], [SDV]Life Sciences [q-bio], Càncer d'ovari, Genetic Phenomena::Genotype::Genetic Predisposition to Disease [PHENOMENA AND PROCESSES], MODIFIERS, Diàtesi, SUSCEPTIBILITY, Carcinoma, Ovarian Epithelial, PRS, 0302 clinical medicine, Breast cancer, 3123 Gynaecology and paediatrics, Risk Factors, Medicine and Health Sciences, Medicine, Genetics(clinical), genetics, Prospective Studies, Prospective cohort study, skin and connective tissue diseases, Genetics (clinical), Ovarian Neoplasms, education.field_of_study, neoplasias::neoplasias por localización::neoplasias de la mama [ENFERMEDADES], Women's cancers Radboud Institute for Molecular Life Sciences [Radboudumc 17], BRCA1 Protein, Hazard ratio, Absolute risk reduction, 1184 Genetics, developmental biology, physiology, article, ASSOCIATION, neoplasias::neoplasias::neoplasias por localización::neoplasias de las glándulas endocrinas::neoplasias ováricas::carcinoma epitelial de ovario [ENFERMEDADES], ddc, 3. Good health, [SDV] Life Sciences [q-bio], ovarian cancer, 030220 oncology & carcinogenesis, Female, Cohort study, medicine.medical_specialty, Heterozygote, Population, 3122 Cancers, Single-nucleotide polymorphism, Breast Neoplasms, MUTATION CARRIERS, Ovaris - Càncer - Aspectes genètics, Càncer de mama, 03 medical and health sciences, breast cancer, SDG 3 - Good Health and Well-being, Ovarian cancer, BRCA1/2, Internal medicine, Humans, Genetic Predisposition to Disease, education, Retrospective Studies, fenómenos genéticos::genotipo::predisposición genética a la enfermedad [FENÓMENOS Y PROCESOS], BRCA2 Protein, IDENTIFICATION, business.industry, Neoplasms::Neoplasms::Neoplasms by Site::Endocrine Gland Neoplasms::Ovarian Neoplasms::Carcinoma, Ovarian Epithelial [DISEASES], Retrospective cohort study, ALLELES, medicine.disease, BRCA1, BRCA2, MODEL, PATHOLOGY, 030104 developmental biology, Mutation, Mama - Càncer - Aspectes genètics, 3111 Biomedicine, business
Abstract

Contains fulltext : 229292.pdf (Publisher’s version ) (Open Access) PURPOSE: We 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. METHODS: Retrospective 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. RESULTS: The 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. CONCLUSION: Population-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
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4. Characterization of the Cancer Spectrum in Men with Germline BRCA1 and BRCA2 Pathogenic Variants:Results from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA)

Author

Christi J. van Asperen, Leigha Senter, Javier Benitez, Kenneth Offit, Marco Montagna, Irene L. Andrulis, Phuong L. Mai, Yen Y. Tan, Lidia Moserle, Sara Torres-Esquius, Trinidad Caldés, Orland Diez, Daniel R. Barnes, Åke Borg, Daniel Barrowdale, Joanne Ngeow, Siranoush Manoukian, Soo Hwang Teo, Maria A. Caligo, Inge Søkilde Pedersen, Jennifer T. Loud, Marta Santamariña, Amanda E. Toland, Anna Marie Mulligan, Irene Konstantopoulou, Antonis C. Antoniou, Paul A. James, Eitan Friedman, Barbara Wappenschmidt, Marc Tischkowitz, Laura Papi, Ana Osorio, Georgia Chenevix-Trench, Eva Machackova, Pedro Pinto, Keivan Majidzadeh-A, Bernardo Bonanni, Kristiina Aittomäki, Berardino Porfirio, Johanna Rantala, Valentina Silvestri, Bent Ejlertsen, Melissa C. Southey, Ramunas Janavicius, Elisabetta Landucci, Liene Nikitina-Zake, Lajos Géczi, Saundra S. Buys, Angela R. Solano, Sarah Colonna, Ana Vega, Fabienne Lesueur, Frans B. L. Hogervorst, Goska Leslie, David E. Goldgar, Peter J. Hulick, Rosa B. Barkardottir, Kristin K. Zorn, Elisa Alducci, Miguel de la Hoya, Fergus J. Couch, Laura Ottini, Anne-Marie Gerdes, Uffe Birk Jensen, Ute Hamann, Christoph Engel, Allison W. Kurian, Douglas F. Easton, Annabeth Høgh Petersen, Alessandra Viel, Linda Steele, Zoe Steinsnyder, Ava Kwong, Alicia Barroso, Eric Hahnen, Mads Thomassen, Maria Rossing, Rita K. Schmutzler, Wendy K. Chung, Angel Izquierdo, Barak Rosenzweig, Jeroen Vierstraete, Mark H. Greene, Lenka Foretova, Jeffrey N. Weitzel, Paolo Radice, Muhammad Usman Rashid, Katherine L. Nathanson, Lesley McGuffog, Ian G. Campbell, John L. Hopper, Laura Cortesi, Christian F. Singer, Sook-Yee Yoon, Lídia Feliubadaló, Bjarni A. Agnarsson, Susan M. Domchek, Vijai Joseph, Manuel R. Teixeira, Dominique Stoppa-Lyonnet, Nadine Tung, Andrew K. Godwin, Jacques Simard, Yuan Chun Ding, Carlo Capalbo, Florentia Fostira, Greet Wieme, Mary Beth Terry, Kathleen Claes, Olufunmilayo I. Olopade, Pedro Pérez-Segura, Heli Nevanlinna, D. Gareth Evans, Edith Olah, Michael T. Parsons, Claudine Isaacs, Miquel Angel Pujana, Timothy R. Rebbeck, Gord Glendon, Susan L. Neuhausen, Judy Kirk, Sue K. Park, Esther M. John, Medicum, Kristiina Aittomäki / Principal Investigator, HUSLAB, Department of Medical and Clinical Genetics, Helsinki University Hospital Area, University of Helsinki, HUS Gynecology and Obstetrics, Biosciences, and Department of Obstetrics and Gynecology

Subjects
Male, Cancer Research, endocrine system diseases, GUIDELINES, 0302 clinical medicine, Neoplasms, Medicine, 030212 general & internal medicine, Prospective cohort study, skin and connective tissue diseases, GENE-ENVIRONMENT INTERACTION, Original Investigation, RISK, Aged, 80 and over, education.field_of_study, BRCA1 Protein, Middle Aged, BRCA2 Protein/genetics, 3. Good health, PROSTATE-CANCER, Phenotype, Oncology, 030220 oncology & carcinogenesis, Male breast cancer, Cohort study, Adult, medicine.medical_specialty, Adolescent, Population, 3122 Cancers, MUTATION CARRIERS, 03 medical and health sciences, Young Adult, Breast cancer, Internal medicine, BREAST-CANCER, Humans, education, Germ-Line Mutation, Aged, Retrospective Studies, BRCA2 Protein, business.industry, Cancer, Correction, Retrospective cohort study, Odds ratio, medicine.disease, BRCA1 Protein/genetics, business, Neoplasms/diagnosis
Abstract

Importance The limited data on cancer phenotypes in men with germline BRCA1 and BRCA2 pathogenic variants (PVs) have hampered the development of evidence-based recommendations for early cancer detection and risk reduction in this population. Objective To compare the cancer spectrum and frequencies between male BRCA1 and BRCA2 PV carriers. Design, Setting, and Participants Retrospective cohort study of 6902 men, including 3651 BRCA1 and 3251 BRCA2 PV carriers, older than 18 years recruited from cancer genetics clinics from 1966 to 2017 by 53 study groups in 33 countries worldwide collaborating through the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). Clinical data and pathologic characteristics were collected. Main Outcomes and Measures BRCA1/2 status was the outcome in a logistic regression, and cancer diagnoses were the independent predictors. All odds ratios (ORs) were adjusted for age, country of origin, and calendar year of the first interview. Results Among the 6902 men in the study (median [range] age, 51.6 [18-100] years), 1634 cancers were diagnosed in 1376 men (19.9%), the majority (922 of 1,376 [67%]) being BRCA2 PV carriers. Being affected by any cancer was associated with a higher probability of being a BRCA2, rather than a BRCA1, PV carrier (OR, 3.23; 95% CI, 2.81-3.70; P

Published
2020
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5. Zebrafish as an in vivo screening tool to establish PARP inhibitor efficacy

Author

Charlotte Fieuws, Andy Willaert, Kathleen Claes, Jeroen Vierstraete, and Anne Vral

Subjects
Poly ADP ribose polymerase, Cell, Drug Evaluation, Preclinical, Antineoplastic Agents, Biology, Poly(ADP-ribose) Polymerase Inhibitors, Biochemistry, Piperazines, Olaparib, Animals, Genetically Modified, 03 medical and health sciences, Prostate cancer, chemistry.chemical_compound, 0302 clinical medicine, In vivo, medicine, Animals, Molecular Biology, Zebrafish, 030304 developmental biology, BRCA2 Protein, 0303 health sciences, Recombinational DNA Repair, Cell Biology, DNA, Zebrafish Proteins, medicine.disease, biology.organism_classification, medicine.anatomical_structure, chemistry, 030220 oncology & carcinogenesis, PARP inhibitor, Models, Animal, Mutation, Cancer research, Phthalazines, Homologous recombination
Abstract

Double strand break (DSB) repair through Homologous Recombination (HR) is essential in maintaining genomic stability of the cell. Mutations in the HR pathway confer an increased risk for breast, ovarian, pancreatic and prostate cancer. PARP inhibitors (PARPi) are compounds that specifically target tumours deficient in HR. Novel PARPi are constantly being developed, but research is still heavily focussed on in vitro data, with mouse xenografts only being used in late stages of development. There is a need for assays that can: 1) provide in vivo data, 2) early in the development process of novel PARPi, 3) provide fast results and 4) at an affordable cost. Here we propose a combination of in vivo zebrafish assays to accurately quantify PARP inhibitor efficacy. We showed that PARPi display functional effects in zebrafish, generally correlating with their PARP trapping capacities. Furthermore, we displayed how olaparib mediated radiosensitization is conserved in our zebrafish model. These assays could aid the development of novel PARPi by providing early in vivo data. In addition, using zebrafish allows for high-throughput testing of combination therapies in search of novel treatment strategies.

Published
2020

6. Association of genomic domains in BRCA1 and BRCA2 with prostate cancer risk and aggressiveness

Author

Henriette Roed Nielsen, Judith Balmaña, Anne-Marie Gerdes, Ellen Honisch, Melissa C. Southey, Ramunas Janavicius, Finn Cilius Nielsen, Douglas F. Easton, Linda Steele, Ava Kwong, Sung Won Kim, Bjarni A. Agnarsson, Piera Rizzolo, Angela R. Solano, Mads Thomassen, Johannes Lemke, Grazia Artioli, Heli Nevanlinna, Johanna I. Kiiski, Frans B. L. Hogervorst, Jong Won Lee, Diana Eccles, Mark H. Greene, Marc Tischkowitz, David E. Goldgar, Angela R. Bradbury, Javier Benitez, Marie Navratilova, Dominique Stoppa-Lyonnet, Arjen R. Mensenkamp, Alfons Meindl, Zisun Kim, Nadine Tung, Agnes Jager, Matthew L. Freedman, Ana Osorio, Norbert Arnold, Doris Steinemann, Inge Søkilde Pedersen, Patricia Llovet, Rob B. van der Luijt, Vivek L Patel, Munaza Ahmed, Lidia Moserle, Irene Konstantopoulou, Jackie Cook, Jacques Simard, Joan Brunet, Johanna Rantala, Kai-ren Ong, Carole Brewer, Joe Dennis, Sook-Yee Yoon, Hanne Meijers-Heijboer, Roberta Villa, Katie Snape, Louise Izatt, Ana Peixoto, Susan M. Domchek, Nina Ditsch, D. Gareth Evans, Tara M. Friebel, Sue K. Park, Katherine L. Nathanson, Lenka Foretova, Miguel Angel Pujana, Edith Olah, Hélène Schuster, Raymonda Varon-Mateeva, Silvia Tognazzo, Payal D. Shah, Oskar T. Johannsson, Hans Ehrencrona, Paul Gesta, Ian G. Campbell, Drakoulis Yannoukakos, Mirjam Larsen, Anthony V. D'Amico, Liene Nikitina-Zake, Davide Bondavalli, Valérie Bonadona, Paul A. James, Alan Donaldson, Antonis C. Antoniou, Bernd Auber, Andrew K. Godwin, Denise Molina Gomes, Jihyoun Lee, Laurence Faivre, Almuth Caliebe, Pilar Garre, Siddhartha Yadav, Julika Borde, Pedro Pérez-Segura, Birgitte Bertelsen, Paolo Peterlongo, Michael T. Parsons, John L. Hopper, Bruno Buecher, Goska Leslie, Shan Wang-Gohrke, Amanda B. Spurdle, T.M. Mooij, Juliane Ramser, kConFab Investigators, Lídia Feliubadaló, Susanne E. Boonen, Bernard Peissel, Anna von Wachenfeldt, Timothy R. Rebbeck, Christi J. van Asperen, Víctor Lorca, Estela Carrasco, Elisa Alducci, Ulrike Faust, Karin Kast, Gord Glendon, Saundra S. Buys, Fergus J. Couch, Mariarosaria Calvello, Istvan Bodrogi, Kathryn J. Ruddy, Philipp Wagner, Fabienne Lesueur, Evan L. Busch, Hebon Investigators, Laura Cortesi, Christian F. Singer, Ute Hamann, Giuseppe Damante, Stefania Tommasi, Esther M. John, Jacopo Azzollini, Cristina Zanzottera, Angelica M. Gutierrez-Barrera, Emmanuelle Mouret-Fourme, Claire Saule, Rosa B. Barkardottir, Kristin K. Zorn, Kerstin Rhiem, Uffe Birk Jensen, Mark Pomerantz, Yuan Chun Ding, Alison H. Trainer, Marco Montagna, Vijai Joseph, Domenico Palli, Kwang-Pil Ko, Angel M. Cronin, Susan L. Neuhausen, Dieter Niederacher, Laura Ottini, Angela Toss, Rita K. Schmutzler, Muriel Belotti, Jeffrey N. Weitzel, Caroline M. Seynaeve, Ileana Carnevali, Adalgeir Arason, Rosalind A. Eeles, Annie T W Chu, Florentia Fostira, Greet Wieme, Brita Arver, Charlotte Kvist Lautrup, Christoph Engel, Marion Gauthier-Villars, Daniel Barrowdale, Caroline Maria Rossing, Kenneth Offit, Kathleen Claes, Olufunmilayo I. Olopade, Penny Soucy, Alicia Barroso, Manuel R. Teixeira, Wendy K. Chung, Gero Kramer, Tsun Leung Chan, Agostina Stradella, Debra Frost, Noura Mebirouk, Liselotte P. van Hest, Esther Darder, Valentina Silvestri, Annabeth Høgh Petersen, Lesley McGuffog, Andrea Gehrig, Mary Porteous, Matti A. Rookus, Lizet E. van der Kolk, Siranoush Manoukian, Lone Sunde, Conxi Lázaro, Maria A. Caligo, Priyanka Sharma, Anne-Bine Skytte, Claus-Eric Ott, Christian Sutter, Paolo Radice, Veronica Medici, Georgia Chenevix-Trench, Vanesa García-Barberán, Kristiina Aittomäki, Amanda E. Toland, Anna Marie Mulligan, Véronique Mari, Bernd Dworniczak, Lynn Martin, Lara Della Puppa, Phuong L. Mai, George Fountzilas, Yen Y. Tan, Simona Agata, Torben A Kruse, Trinidad Caldés, Rosemarie Davidson, Daniel R. Barnes, Thomas Dyrso Jensen, Åke Borg, Mark E. Robson, Jennifer T. Loud, Vivian Y. Shin, Irene López-Perolio, Leigha Senter, Irene L. Andrulis, Rosa Scarpitta, Angela F. Brady, Annika Lindblom, Diana Torres, Lotte Nylandsted Krogh, Barbara Wappenschmidt, Muhammad Rashid, Jeroen Vierstraete, Mary B. Daly, Annelie Liljegren, Frederieke H. van der Baan, Eunyoung Kang, Alessandra Viel, Santiago Cabezas-Camarero, Eric Hahnen, Laura Matricardi, Marinus J. Blok, Edmond S. K. Ma, Maria Grazia Tibiletti, Catarina Santos, Julian Adlard, Soo Hwang Teo, Giuseppe Giannini, Jan Hauke, Peter J. Hulick, Miguel de la Hoya, Clare Miller, Bernardo Bonanni, Bent Ejlertsen, Lajos Géczi, Liliana Varesco, Orland Diez, N Herold, Christine Lasset, Adrià López-Fernández, Min Hyuk Lee, Medicum, Kristiina Aittomäki / Principal Investigator, HUSLAB, Department of Medical and Clinical Genetics, University of Helsinki, INDIVIDRUG - Individualized Drug Therapy, HUS Gynecology and Obstetrics, Clinicum, Department of Obstetrics and Gynecology, RS: GROW - R4 - Reproductive and Perinatal Medicine, MUMC+: DA KG Lab Centraal Lab (9), Medical Oncology, Academic Medical Center, ARD - Amsterdam Reproduction and Development, Leslie, Goska [0000-0001-5756-6222], Adlard, Julian [0000-0002-1693-0435], Arnold, Norbert [0000-0003-4523-8808], Auber, Bernd [0000-0003-1880-291X], Azzollini, Jacopo [0000-0002-9364-9778], Barnes, Daniel R [0000-0002-3781-7570], Brunet, Joan [0000-0003-1945-3512], Caligo, Maria A [0000-0003-0589-1829], Campbell, Ian G [0000-0002-7773-4155], Claes, Kathleen BM [0000-0003-0841-7372], Darder, Esther [0000-0002-7764-1397], Dennis, Joe [0000-0003-4591-1214], Dworniczak, Bernd [0000-0003-4981-7903], Eeles, Rosalind A [0000-0002-3698-6241], Ehrencrona, Hans [0000-0002-5589-3622], Ejlertsen, Bent [0000-0001-8761-714X], Evans, D Gareth [0000-0002-8482-5784], Garre, Pilar [0000-0001-8285-4138], Greene, Mark H [0000-0003-1852-9239], Hulick, Peter J [0000-0001-8397-4078], Jager, Agnes [0000-0002-7713-1450], James, Paul [0000-0002-4361-4657], John, Esther M [0000-0003-3259-8003], Joseph, Vijai [0000-0002-7933-151X], Kim, Sung-Won [0000-0002-1413-2800], Kim, Zisun [0000-0002-1413-2800], Konstantopoulou, Irene [0000-0002-0470-0309], Lesueur, Fabienne [0000-0001-7404-4549], Matricardi, Laura [0000-0002-0241-1810], Gomes, Denise Molina [0000-0002-2836-9008], Nevanlinna, Heli [0000-0002-0916-2976], Olopade, Olufunmilayo I [0000-0002-9936-1599], Palli, Domenico [0000-0002-5558-2437], Park, Sue K [0000-0001-5002-9707], Parsons, Michael T [0000-0003-3242-8477], Peterlongo, Paolo [0000-0001-6951-6855], Petersen, Annabeth Høgh [0000-0002-4503-6942], Pujana, Miguel Angel [0000-0003-3222-4044], Ruddy, Kathryn J [0000-0001-6298-332X], Scarpitta, Rosa [0000-0001-7590-3827], Shah, Payal D [0000-0001-5874-3390], Silvestri, Valentina [0000-0003-0712-9379], Southey, Melissa C [0000-0002-6313-9005], Spurdle, Amanda B [0000-0003-1337-7897], Stoppa-Lyonnet, Dominique [0000-0002-5438-8309], Sunde, Lone [0000-0002-8479-165X], Teixeira, Manuel R [0000-0002-4896-5982], Teo, Soo Hwang [0000-0002-0444-590X], Tommasi, Stefania [0000-0002-2157-2978], Toss, Angela [0000-0002-1854-6701], van der Luijt, Rob B [0000-0002-0018-1089], Vierstraete, Jeroen [0000-0001-7909-6620], Wieme, Greet [0000-0003-2718-5300], Yadav, Siddhartha [0000-0003-4630-9903], Antoniou, Antonis C [0000-0001-9223-3116], Apollo - University of Cambridge Repository, Human genetics, and CCA - Cancer biology and immunology

Subjects
Male, 0301 basic medicine, Oncology, Cancer Research, endocrine system diseases, PHENOTYPE, INCREASE, Prostate cancer, 0302 clinical medicine, Risk Factors, Young adult, skin and connective tissue diseases, Aged, 80 and over, Prostate cancer risk, Women's cancers Radboud Institute for Molecular Life Sciences [Radboudumc 17], MESSENGER-RNA DECAY, BRCA1 Protein, Genomics, GERMLINE MUTATIONS, Middle Aged, Prognosis, OVARIAN, CARRIERS, 3. Good health, 030220 oncology & carcinogenesis, Adult, Heterozygote, medicine.medical_specialty, Adolescent, Tumor suppressor gene, Urology, Association (object-oriented programming), 3122 Cancers, MEDLINE, Article, Young Adult, 03 medical and health sciences, Breast cancer, Germline mutation, SDG 3 - Good Health and Well-being, Internal medicine, BRCA1, BRCA2, Prostate Cancer, Pathogenic sequence variant location, Risk estimation, Journal Article, Genetic predisposition, medicine, Humans, BREAST-CANCER, Genetic Predisposition to Disease, Risk factor, Genetic Association Studies, Aged, BRCA2 Protein, IDENTIFICATION, business.industry, Prostatic Neoplasms, medicine.disease, GENE, Confidence interval, APC, 030104 developmental biology, Mutation, 3111 Biomedicine, business
Abstract

Pathogenic sequence variants (PSV) in BRCA1 or BRCA2 (BRCA1/2) are associated with increased risk and severity of prostate cancer. We evaluated whether PSVs in BRCA1/2 were associated with risk of overall prostate cancer or high grade (Gleason 8+) prostate cancer using an international sample of 65 BRCA1 and 171 BRCA2 male PSV carriers with prostate cancer, and 3,388 BRCA1 and 2,880 BRCA2 male PSV carriers without prostate cancer. PSVs in the 3′ region of BRCA2 (c.7914+) were significantly associated with elevated risk of prostate cancer compared with reference bin c.1001-c.7913 [HR = 1.78; 95% confidence interval (CI), 1.25–2.52; P = 0.001], as well as elevated risk of Gleason 8+ prostate cancer (HR = 3.11; 95% CI, 1.63–5.95; P = 0.001). c.756-c.1000 was also associated with elevated prostate cancer risk (HR = 2.83; 95% CI, 1.71–4.68; P = 0.00004) and elevated risk of Gleason 8+ prostate cancer (HR = 4.95; 95% CI, 2.12–11.54; P = 0.0002). No genotype–phenotype associations were detected for PSVs in BRCA1. These results demonstrate that specific BRCA2 PSVs may be associated with elevated risk of developing aggressive prostate cancer. Significance: Aggressive prostate cancer risk in BRCA2 mutation carriers may vary according to the specific BRCA2 mutation inherited by the at-risk individual.

Published
2020
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7. Decreased DNA double‑strand break repair and enhanced chromosomal radiosensitivity in irradiated non‑tumorigenic human breast epithelial cells with a partial BRCA1 or BRCA2 knockdown

Author

Jeroen Vierstraete, Mattias Van Heetvelde, Julie Depuydt, Maria Federica Palermo, Jan Philippé, Gianpaolo Perletti, Annelot Baert, Bram Verstraete, Anne Vral, Anna Sablina, and Kathleen Claes

Subjects
Mutation, Gene knockdown, endocrine system diseases, General Immunology and Microbiology, DNA repair, Chemistry, RAD51, medicine.disease_cause, Molecular biology, General Biochemistry, Genetics and Molecular Biology, Germline mutation, Medicine and Health Sciences, medicine, Neoplastic transformation, Radiosensitivity, skin and connective tissue diseases, Homologous recombination
Abstract

It has previously been demonstrated that peripheral blood lymphocytes of healthy women carrying BRCA1 or BRCA2 mutations exhibit increased chromosomal radiosensitivity, which is characterized by an enhanced formation of micronuclei. These results suggest that the deficient repair of DNA double‑strand breaks may also occur in breast epithelial cells of women exhibiting a reduced expression of wild‑type BRCA1/BRCA2 proteins due to the presence of germline mutations in BRCA1/2 genes. The aim of this study was to further investigate in vitro the effects of the reduced expression of BRCA1 and BRCA2 in MCF10A human non‑tumorigenic breast epithelial cells, tentatively mimicking the phenotype of heterozygous cells of carriers of BRCA1/2 mutations. By lentivirus‑mediated RNA interference, the stable reduction of BRCA1 and BRCA2 expression at the mRNA and protein level was achieved, thus generating the BRCA1i and BRCA2i cell lines. In these cells, homologous recombination was impaired, as significantly lower yields of RAD51 foci were obtained following exposure to 2 Gy ionizing radiation compared to the control MCF10A cells (BRCA1i cells, 58% reduction; BRCA2i cells, 64% reduction). Moreover, in the BRCA1i and BRCA2i cells, a dose‑dependent increase in micronuclei was observed compared to the cells which were not subjected to gene knockdown. Cell viability was also affected by partial BRCA1/2 knockdown. On the whole, the findings of this study indicated that in cells with a reduced BRCA1 or BRCA2 expression, the impairment of homologous recombination resulted in a >50% decrease in RAD51 foci following irradiation and increased chromosomal abnormalities (micronuclei). These findings suggest that the healthy breast tissue of BRCA1/2 mutation carriers may be prone to neoplastic transformation upon exposure to diagnostic or therapeutic radiation, and that the RAD51 foci assay may be useful for the assessment of the functionality of HR repair and radiosensitivity in these women.

Published
2020
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8. Association of Genomic Domains in

Author

Vivek L, Patel, Evan L, Busch, Tara M, Friebel, Angel, Cronin, Goska, Leslie, Lesley, McGuffog, Julian, Adlard, Simona, Agata, Bjarni A, Agnarsson, Munaza, Ahmed, Kristiina, Aittomäki, Elisa, Alducci, Irene L, Andrulis, Adalgeir, Arason, Norbert, Arnold, Grazia, Artioli, Brita, Arver, Bernd, Auber, Jacopo, Azzollini, Judith, Balmaña, Rosa B, Barkardottir, Daniel R, Barnes, Alicia, Barroso, Daniel, Barrowdale, Muriel, Belotti, Javier, Benitez, Birgitte, Bertelsen, Marinus J, Blok, Istvan, Bodrogi, Valérie, Bonadona, Bernardo, Bonanni, Davide, Bondavalli, Susanne E, Boonen, Julika, Borde, Ake, Borg, Angela R, Bradbury, Angela, Brady, Carole, Brewer, Joan, Brunet, Bruno, Buecher, Saundra S, Buys, Santiago, Cabezas-Camarero, Trinidad, Caldés, Almuth, Caliebe, Maria A, Caligo, Mariarosaria, Calvello, Ian G, Campbell, Ileana, Carnevali, Estela, Carrasco, Tsun L, Chan, Annie T W, Chu, Wendy K, Chung, Kathleen B M, Claes, Gemo Study, Collaborators, Embrace, Collaborators, Jackie, Cook, Laura, Cortesi, Fergus J, Couch, Mary B, Daly, Giuseppe, Damante, Esther, Darder, Rosemarie, Davidson, Miguel, de la Hoya, Lara Della, Puppa, Joe, Dennis, Orland, Díez, Yuan Chun, Ding, Nina, Ditsch, Susan M, Domchek, Alan, Donaldson, Bernd, Dworniczak, Douglas F, Easton, Diana M, Eccles, Rosalind A, Eeles, Hans, Ehrencrona, Bent, Ejlertsen, Christoph, Engel, D Gareth, Evans, Laurence, Faivre, Ulrike, Faust, Lídia, Feliubadaló, Lenka, Foretova, Florentia, Fostira, George, Fountzilas, Debra, Frost, Vanesa, García-Barberán, Pilar, Garre, Marion, Gauthier-Villars, Lajos, Géczi, Andrea, Gehrig, Anne-Marie, Gerdes, Paul, Gesta, Giuseppe, Giannini, Gord, Glendon, Andrew K, Godwin, David E, Goldgar, Mark H, Greene, Angelica M, Gutierrez-Barrera, Eric, Hahnen, Ute, Hamann, Jan, Hauke, Natalie, Herold, Frans B L, Hogervorst, Ellen, Honisch, John L, Hopper, Peter J, Hulick, KConFab, Investigators, Hebon, Investigators, Louise, Izatt, Agnes, Jager, Paul, James, Ramunas, Janavicius, Uffe Birk, Jensen, Thomas Dyrso, Jensen, Oskar Th, Johannsson, Esther M, John, Vijai, Joseph, Eunyoung, Kang, Karin, Kast, Johanna I, Kiiski, Sung-Won, Kim, Zisun, Kim, Kwang-Pil, Ko, Irene, Konstantopoulou, Gero, Kramer, Lotte, Krogh, Torben A, Kruse, Ava, Kwong, Mirjam, Larsen, Christine, Lasset, Charlotte, Lautrup, Conxi, Lazaro, Jihyoun, Lee, Jong Won, Lee, Min Hyuk, Lee, Johannes, Lemke, Fabienne, Lesueur, Annelie, Liljegren, Annika, Lindblom, Patricia, Llovet, Adria, Lopez-Fernández, Irene, Lopez-Perolio, Victor, Lorca, Jennifer T, Loud, Edmond S K, Ma, Phuong L, Mai, Siranoush, Manoukian, Veronique, Mari, Lynn, Martin, Laura, Matricardi, Noura, Mebirouk, Veronica, Medici, Hanne E J, Meijers-Heijboer, Alfons, Meindl, Arjen R, Mensenkamp, Clare, Miller, Denise Molina, Gomes, Marco, Montagna, Thea M, Mooij, Lidia, Moserle, Emmanuelle, Mouret-Fourme, Anna Marie, Mulligan, Katherine L, Nathanson, Marie, Navratilova, Heli, Nevanlinna, Dieter, Niederacher, Finn C Cilius, Nielsen, Liene, Nikitina-Zake, Kenneth, Offit, Edith, Olah, Olufunmilayo I, Olopade, Kai-Ren, Ong, Ana, Osorio, Claus-Eric, Ott, Domenico, Palli, Sue K, Park, Michael T, Parsons, Inge Sokilde, Pedersen, Bernard, Peissel, Ana, Peixoto, Pedro, Pérez-Segura, Paolo, Peterlongo, Annabeth Høgh, Petersen, Mary E, Porteous, Miguel Angel, Pujana, Paolo, Radice, Juliane, Ramser, Johanna, Rantala, Muhammad U, Rashid, Kerstin, Rhiem, Piera, Rizzolo, Mark E, Robson, Matti A, Rookus, Caroline M, Rossing, Kathryn J, Ruddy, Catarina, Santos, Claire, Saule, Rosa, Scarpitta, Rita K, Schmutzler, Hélène, Schuster, Leigha, Senter, Caroline M, Seynaeve, Payal D, Shah, Priyanka, Sharma, Vivian Y, Shin, Valentina, Silvestri, Jacques, Simard, Christian F, Singer, Anne-Bine, Skytte, Katie, Snape, Angela R, Solano, Penny, Soucy, Melissa C, Southey, Amanda B, Spurdle, Linda, Steele, Doris, Steinemann, Dominique, Stoppa-Lyonnet, Agostina, Stradella, Lone, Sunde, Christian, Sutter, Yen Y, Tan, Manuel R, Teixeira, Soo Hwang, Teo, Mads, Thomassen, Maria Grazia, Tibiletti, Marc, Tischkowitz, Silvia, Tognazzo, Amanda E, Toland, Stefania, Tommasi, Diana, Torres, Angela, Toss, Alison H, Trainer, Nadine, Tung, Christi J, van Asperen, Frederieke H, van der Baan, Lizet E, van der Kolk, Rob B, van der Luijt, Liselotte P, van Hest, Liliana, Varesco, Raymonda, Varon-Mateeva, Alessandra, Viel, Jeroen, Vierstraete, Roberta, Villa, Anna, von Wachenfeldt, Philipp, Wagner, Shan, Wang-Gohrke, Barbara, Wappenschmidt, Jeffrey N, Weitzel, Greet, Wieme, Siddhartha, Yadav, Drakoulis, Yannoukakos, Sook-Yee, Yoon, Cristina, Zanzottera, Kristin K, Zorn, Anthony V, D'Amico, Matthew L, Freedman, Mark M, Pomerantz, Georgia, Chenevix-Trench, Antonis C, Antoniou, Susan L, Neuhausen, Laura, Ottini, Henriette Roed, Nielsen, and Timothy R, Rebbeck

Subjects
Adult, Aged, 80 and over, BRCA2 Protein, Male, Heterozygote, Adolescent, BRCA1 Protein, Prostatic Neoplasms, Genomics, Middle Aged, Prognosis, Young Adult, Risk Factors, Mutation, Humans, Genetic Predisposition to Disease, Genetic Association Studies, Aged
Abstract

Pathogenic sequence variants (PSV) in

Published
2019

9. Abstract B25: Isolation and engraftment of circulating tumor cells into zebrafish embryos to predict tumor response of ovarian cancer patients

Author

Koen Van de Vijver, Hannelore Denys, Jeroen Vierstraete, Charlotte Fieuws, and Kathleen Claes

Subjects
Cancer Research, Mitotic index, biology, business.industry, H&E stain, Cancer, biology.organism_classification, medicine.disease, Primary tumor, Circulating tumor cell, Oncology, Cancer research, medicine, Immunohistochemistry, Ovarian cancer, business, Zebrafish
Abstract

Ovarian cancer is characterized by poor prognosis and high relapse rate, unfortunately accompanied with resistance to previously used therapy. Currently, resistance is defined by the time between treatment and progression of the disease. A better model to test resistance is to make patient-derived xenografts (PDX). We propose here the development of a PDX platform in zebrafish. This model allows testing of both previously used treatment and possible other treatment strategies. The fast readout of less than 15 days and the limited amount of material required (few 100s of cells) allow implementation in clinical practice. In a first phase, a correlation study will be performed to establish that zebrafish PDX models mimic the response of the patient to adjuvant chemotherapy by using primary tumor tissue. In the second phase of this project, circulating tumor cells will be isolated at different time points during treatment and follow-up. The objective of this part of the study is to isolate and cultivate CTCs for engraftment. For this we will apply a recently introduced size-based separation method (MetaCell®). The viable cells will undergo a short in vitro culture to expand and to get rid of remaining lymphocytes. Possible changes in mesenchymal-to-epithelial transition are picked up by single-cell sequencing (10xGenomics®) of the cells prior and post culturing. After culturing the CTCs are fluorescently labeled and engrafted into two-day-old zebrafish embryos. Tumors are formed the following day and treated with different treatment options for three executive days. Tumor proliferation and growth is observed in vivo through fluorescence microscopy. Post-mortem readouts are based on immunohistochemistry profiles. Resistance is defined by high proliferation rate (Ki-67) and mitotic index and low apoptosis rate (Caspase-3). Comparative morphology with primary tissue and CTC-PDX is evaluated by hematoxylin and eosin staining on FFPE-slices. This methodology may provide an opportunity for more personalized medicine in which treatment for OC may be guided by information from an individual’s zebrafish PDX response to therapy. Citation Format: Charlotte Fieuws, Jeroen Vierstraete, Koen Van De Vijver, Hannelore Denys, Kathleen BM Claes. Isolation and engraftment of circulating tumor cells into zebrafish embryos to predict tumor response of ovarian cancer patients [abstract]. In: Proceedings of the AACR Special Conference on Advances in Liquid Biopsies; Jan 13-16, 2020; Miami, FL. Philadelphia (PA): AACR; Clin Cancer Res 2020;26(11_Suppl):Abstract nr B25.

Published
2020
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10. Accurate quantification of homologous recombination in zebrafish : brca2 deficiency as a paradigm

Author

Andy Willaert, Anne Vral, Paul Coucke, Petra Vermassen, Jeroen Vierstraete, and Kathleen Claes

Subjects
0301 basic medicine, Embryo, Nonmammalian, Genotyping Techniques, ved/biology.organism_classification_rank.species, genetic processes, RAD51, lcsh:Medicine, medicine.disease_cause, DOUBLE-STRAND BREAKS, Animals, Genetically Modified, 0302 clinical medicine, Radiation, Ionizing, Recombinase, Homologous Recombination, lcsh:Science, Zebrafish, Gene knockdown, Multidisciplinary, INHIBITOR, Immunohistochemistry, CANCER, GENOME, Gene Knockdown Techniques, 030220 oncology & carcinogenesis, embryonic structures, biological phenomena, cell phenomena, and immunity, animal structures, DNA damage, EPITHELIUM, Biology, Article, 03 medical and health sciences, medicine, TUMORIGENESIS, Animals, Genetic Testing, Model organism, BRCA2 Protein, REPAIR, ved/biology, lcsh:R, Biology and Life Sciences, Zebrafish Proteins, biology.organism_classification, Molecular biology, MODEL, enzymes and coenzymes (carbohydrates), 030104 developmental biology, DNA-DAMAGE, FANCONI-ANEMIA, lcsh:Q, Rad51 Recombinase, Homologous recombination, Carcinogenesis
Abstract

Homologous Recombination (HR) repair is essential for repairing DNA double strand breaks (DSB) in dividing cells and preventing tumorigenesis. BRCA2 plays an important role in HR by recruiting the DNA recombinase RAD51 to the DSB. Despite being a popular model organism in genetic and cancer research, knowledge on the conservation of the HR pathway and function of zebrafish Brca2 is limited. To evaluate this, we developed a Rad51 foci assay in zebrafish embryos. We identified the zebrafish embryonic intestinal tissue as an ideal target for Rad51 immunostaining. After inducing DSB through irradiation, Rad51 foci were present in irradiated embryos but not in unirradiated controls. We present a method for accurate quantification of HR. Both morpholino-induced knockdown and knockout of Brca2 lead to almost complete absence of Rad51 foci in irradiated embryos. These findings indicate conserved function of Brca2 in zebrafish. Interestingly, a statistically significant decrease in Rad51 foci was observed in Brca2 heterozygous carriers compared to wild types, indicative of haploinsufficiency, a hypothesised cause of some tumours in patients with a germline BRCA2 mutation. In conclusion, we demonstrated the suitability of zebrafish as an excellent in vivo model system for studying the HR pathway and its functionality.

Published
2017

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