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1. Genetic Testing of Breast Cancer Patients with Very Early-Onset Breast Cancer (≤30 Years) Yields a High Rate of Germline Pathogenic Variants, Mainly in the BRCA1, TP53, and BRCA2 Genes

Author: Paraskevi Apostolou, Vasiliki Dellatola, Athanasios Papathanasiou, Despoina Kalfakakou, Elena Fountzilas, Dimitrios Tryfonopoulos, Sofia Karageorgopoulou, Drakoulis Yannoukakos, Irene Konstantopoulou, and Florentia Fostira
Subjects: hereditary breast cancer, BRCA1, BRCA2, TP53, early onset, genetic testing, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Early-onset breast cancer constitutes a major criterion for genetic testing referral. Nevertheless, studies focusing on breast cancer patients (≤30 years) are limited. We investigated the contribution and spectrum of known breast-cancer-associated genes in 267 Greek women with breast cancer ≤30 years while monitoring their clinicopathological characteristics and outcomes. In this cohort, a significant proportion (39.7%) carried germline pathogenic variants (PVs) distributed in 8 genes. The majority, namely 36.7%, involved BRCA1, TP53, and BRCA2. PVs in BRCA1 were the most prevalent (28.1%), followed by TP53 (4.5%) and BRCA2 (4.1%) PVs. The contribution of PVs in CHEK2, ATM, PALB2, PTEN, and RAD51C was limited to 3%. In the patient group ≤26 years, TP53 PVs were significantly higher compared to the group 26–30 years (p = 0.0023). A total of 74.8% of TP53 carriers did not report a family history of cancer. Carriers of PVs receiving neoadjuvant chemotherapy showed an improved event-free survival (p < 0.0001) compared to non-carriers. Overall, many women with early-onset breast cancer carry clinically actionable variants, mainly in the BRCA1/2 and TP53 genes. The inclusion of timely testing of TP53 in these patients provides essential information for appropriate clinical management. This is important for countries where reimbursement involves the cost of genetic analysis of BRCA1/2 only.
Published: 2024
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2. Copy number variants as modifiers of breast cancer risk for BRCA1/BRCA2 pathogenic variant carriers

Author: Christopher Hakkaart, John F. Pearson, Louise Marquart, Joe Dennis, George A. R. Wiggins, Daniel R. Barnes, Bridget A. Robinson, Peter D. Mace, Kristiina Aittomäki, Irene L. Andrulis, Banu K. Arun, Jacopo Azzollini, Judith Balmaña, Rosa B. Barkardottir, Sami Belhadj, Lieke Berger, Marinus J. Blok, Susanne E. Boonen, Julika Borde, Angela R. Bradbury, Joan Brunet, Saundra S. Buys, Maria A. Caligo, Ian Campbell, Wendy K. Chung, Kathleen B. M. Claes, GEMO Study Collaborators, EMBRACE Collaborators, Marie-Agnès Collonge-Rame, Jackie Cook, Casey Cosgrove, Fergus J. Couch, Mary B. Daly, Sita Dandiker, Rosemarie Davidson, Miguel de la Hoya, Robin de Putter, Capucine Delnatte, Mallika Dhawan, Orland Diez, Yuan Chun Ding, Susan M. Domchek, Alan Donaldson, Jacqueline Eason, Douglas F. Easton, Hans Ehrencrona, Christoph Engel, D. Gareth Evans, Ulrike Faust, Lidia Feliubadaló, Florentia Fostira, Eitan Friedman, Megan Frone, Debra Frost, Judy Garber, Simon A. Gayther, Andrea Gehrig, Paul Gesta, Andrew K. Godwin, David E. Goldgar, Mark H. Greene, Eric Hahnen, Christopher R. Hake, Ute Hamann, Thomas V. O. Hansen, Jan Hauke, Julia Hentschel, Natalie Herold, Ellen Honisch, Peter J. Hulick, Evgeny N. Imyanitov, SWE-BRCA Investigators, kConFab Investigators, HEBON Investigators, Claudine Isaacs, Louise Izatt, Angel Izquierdo, Anna Jakubowska, Paul A. James, Ramunas Janavicius, Esther M. John, Vijai Joseph, Beth Y. Karlan, Zoe Kemp, Judy Kirk, Irene Konstantopoulou, Marco Koudijs, Ava Kwong, Yael Laitman, Fiona Lalloo, Christine Lasset, Charlotte Lautrup, Conxi Lazaro, Clémentine Legrand, Goska Leslie, Fabienne Lesueur, Phuong L. Mai, Siranoush Manoukian, Véronique Mari, John W. M. Martens, Lesley McGuffog, Noura Mebirouk, Alfons Meindl, Austin Miller, Marco Montagna, Lidia Moserle, Emmanuelle Mouret-Fourme, Hannah Musgrave, Sophie Nambot, Katherine L. Nathanson, Susan L. Neuhausen, Heli Nevanlinna, Joanne Ngeow Yuen Yie, Tu Nguyen-Dumont, Liene Nikitina-Zake, Kenneth Offit, Edith Olah, Olufunmilayo I. Olopade, Ana Osorio, Claus-Eric Ott, Sue K. Park, Michael T. Parsons, Inge Sokilde Pedersen, Ana Peixoto, Pedro Perez-Segura, Paolo Peterlongo, Timea Pocza, Paolo Radice, Juliane Ramser, Johanna Rantala, Gustavo C. Rodriguez, Karina Rønlund, Efraim H. Rosenberg, Maria Rossing, Rita K. Schmutzler, Payal D. Shah, Saba Sharif, Priyanka Sharma, Lucy E. Side, Jacques Simard, Christian F. Singer, Katie Snape, Doris Steinemann, Dominique Stoppa-Lyonnet, Christian Sutter, Yen Yen Tan, Manuel R. Teixeira, Soo Hwang Teo, Mads Thomassen, Darcy L. Thull, Marc Tischkowitz, Amanda E. Toland, Alison H. Trainer, Vishakha Tripathi, Nadine Tung, Klaartje van Engelen, Elizabeth J. van Rensburg, Ana Vega, Alessandra Viel, Lisa Walker, Jeffrey N. Weitzel, Marike R. Wevers, Georgia Chenevix-Trench, Amanda B. Spurdle, Antonis C. Antoniou, and Logan C. Walker
Subjects: Biology (General), QH301-705.5
Abstract: The risk of germline copy number variants (CNVs) in BRCA1 and BRCA2 pathogenic variant carriers in breast cancer is assessed, with CNVs overlapping SULT1A1 decreasing breast cancer risk in BRCA1 carriers.
Published: 2022
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3. Concordance between Three Homologous Recombination Deficiency (HRD) Assays in Patients with High-Grade Epithelial Ovarian Cancer

Author: Elena Fountzilas, Kyriaki Papadopoulou, Thomas Chatzikonstantinou, Georgios Karakatsoulis, Pantelis Constantoulakis, Aikaterini Tsantikidi, Georgios Tsaousis, Sofia Karageorgopoulou, Anna Koumarianou, Davide Mauri, Anastasios Ntavatzikos, Zacharenia Saridaki, Georgios Petrakis, Florentia Fostira, George Fountzilas, and Michalis Liontos
Subjects: biomarker, concordance, epithelial ovarian cancer, homologous recombination deficiency, enomic instability, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Our aim was to evaluate the concordance between the Myriad MyChoice and two alternative homologous recombination deficiency (HRD) assays (AmoyDx HRD Focus NGS Panel and OncoScan™) in patients with epithelial ovarian cancer (EOC). Tissue samples from 50 patients with newly diagnosed EOC and known Myriad MyChoice HRD status were included. DNA aliquots from tumor samples, previously evaluated with Myriad MyChoice and centrally reassessed, were distributed to laboratories to assess their HRD status using the two platforms, after being blinded for the Myriad MyChoice CDx HRD status. The primary endpoint was the concordance between Myriad MyChoice and each alternative assay. Tumor samples were evaluated with an AmoyDx® HRD Focus Panel (n = 50) and with OncoScan™ (n = 43). Both platforms provided results for all tumors. Analysis showed that correlation was high for the Myriad MyChoice GI score and AmoyDx® HRD Focus Panel (r = 0.79) or OncoScan™ (r = 0.87) (continuous variable). The overall percent agreement (OPA) between Myriad MyChoice GI status (categorical variable) and each alternative assay was 83.3% (68.6–93.3%) with AmoyDx and 77.5% (61.5–89.2%) with OncoScan™. The OPA in HRD status between Myriad MyChoice and AmoyDx was 88.6% (75.4–96.2). False-positive rates were 31.6% (6/19) for AmoyDx GI status and 31.9% (7/22) for OncoScan™, while false-negative rates were 0% (0/28, AmoyDx) and 11.1% (2/18, OncoScan™) compared with the Myriad MyChoice GI status. While substantial concordance between Myriad MyChoice and alternative assays was demonstrated, prospective validation of the analytical performance and clinical relevance of these assays is warranted.
Published: 2023
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4. Lung cancer as a predominant feature in a patient with Peutz–Jeghers syndrome: Case report

Author: Florentia Fostira, Elena Fountzilas, Kyriaki Papadopoulou, Theodoros Karaiskos, Ourania Mpatsi, Nikoleta Pastelli, Giannis Mountzios, Irene Konstantopoulou, and George Fountzilas
Subjects: case report, immunotherapy, lung cancer, Peutz–Jeghers syndrome, STK11, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Abstract Peutz–Jeghers syndrome (PJS) is characterized by mucocutaneous pigmentation and gastrointestinal hamartomatous polyposis, which can lead to intussusception. PJS patients face high lifetime risks for various cancer types, with the majority of patients being diagnosed with tumors along the gastrointestinal tract. Herein, we present the case of a 34‐year‐old man who carried a germline STK11 pathogenic variant, while lacking the cardinal features of PJS syndrome. Interestingly, he was diagnosed with lung adenocarcinoma despite being a never‐smoker. Tumor testing revealed clinically relevant molecular alterations, including the known germline pathogenic variant STK11, a KRAS somatic pathogenic variant, and FGFR3 gene amplification. Treatment with standard chemotherapy and immunotherapy did not have a clinical benefit. Due to clinical deterioration, the patient deceased 18 months after his initial diagnosis prior to having the chance for targeted therapy. Identification of rare hereditary cancer syndromes and the respective presence of tumor biomarkers can provide important alternatives to targeted treatments, including immunotherapy in patients with tumors unresponsive to conventional treatment protocols. This case highlights that although only a small proportion of lung cancer diagnoses will be due to hereditary predisposition, STK11 germline carriers should be under close surveillance for early detection of lung cancer.
Published: 2022
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5. Neoadjuvant treatment in ovarian cancer: New perspectives, new challenges

Author: Adamantia Nikolaidi, Elena Fountzilas, Florentia Fostira, Amanda Psyrri, Helen Gogas, and Christos Papadimitriou
Subjects: ovarian cancer, NACT, bevacizumab, PARPi, immunotherapy, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Ovarian cancer remains the leading cause of death from gynecological cancer. Survival is significantly related to the stage of the disease at diagnosis. Of quite importance is primary cytoreductive surgery, having as a goal to remove all visible tumor tissue, and is the standard primary treatment in combination with platinum-based chemotherapy for patients with advanced ovarian carcinoma.Neo-adjuvant chemotherapy (NACT) has been implemented mostly in treating advanced disease, with studies performed having numerous limitations. Data extrapolated from these studies have not shown inferiority survival of NACT, compared to primary debulking surgery. The role of NACT is of particular interest because of the intrinsic mechanisms that are involved in the process, which can be proven as therapeutic approaches with enormous potential. NACT increases immune infiltration and programmed death ligand-1 (PDL-1) expression, induces local immune activation, and can potentiate the immunogenicity of immune-exclude high grade serous ovarian tumors, while the combination of NACT with bevacizumab, PARP inhibitors or immunotherapy remains to be evaluated. This article summarizes all available data on studies implementing NACT in the treatment of ovarian cancer, focusing on clinical outcomes and study limitations. High mortality rates observed among ovarian cancer patients necessitates the identification of more effective treatments, along with biomarkers that will aid treatment individualization.
Published: 2022
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6. A case-only study to identify genetic modifiers of breast cancer risk for BRCA1/BRCA2 mutation carriers

Author: Juliette Coignard, Michael Lush, Jonathan Beesley, Tracy A. O’Mara, Joe Dennis, Jonathan P. Tyrer, Daniel R. Barnes, Lesley McGuffog, Goska Leslie, Manjeet K. Bolla, Muriel A. Adank, Simona Agata, Thomas Ahearn, Kristiina Aittomäki, Irene L. Andrulis, Hoda Anton-Culver, Volker Arndt, Norbert Arnold, Kristan J. Aronson, Banu K. Arun, Annelie Augustinsson, Jacopo Azzollini, Daniel Barrowdale, Caroline Baynes, Heko Becher, Marina Bermisheva, Leslie Bernstein, Katarzyna Białkowska, Carl Blomqvist, Stig E. Bojesen, Bernardo Bonanni, Ake Borg, Hiltrud Brauch, Hermann Brenner, Barbara Burwinkel, Saundra S. Buys, Trinidad Caldés, Maria A. Caligo, Daniele Campa, Brian D. Carter, Jose E. Castelao, Jenny Chang-Claude, Stephen J. Chanock, Wendy K. Chung, Kathleen B. M. Claes, Christine L. Clarke, GEMO Study Collaborators, EMBRACE Collaborators, J. Margriet Collée, Don M. Conroy, Kamila Czene, Mary B. Daly, Peter Devilee, Orland Diez, Yuan Chun Ding, Susan M. Domchek, Thilo Dörk, Isabel dos-Santos-Silva, Alison M. Dunning, Miriam Dwek, Diana M. Eccles, A. Heather Eliassen, Christoph Engel, Mikael Eriksson, D. Gareth Evans, Peter A. Fasching, Henrik Flyger, Florentia Fostira, Eitan Friedman, Lin Fritschi, Debra Frost, Manuela Gago-Dominguez, Susan M. Gapstur, Judy Garber, Vanesa Garcia-Barberan, Montserrat García-Closas, José A. García-Sáenz, Mia M. Gaudet, Simon A. Gayther, Andrea Gehrig, Vassilios Georgoulias, Graham G. Giles, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Anna González-Neira, Mark H. Greene, Pascal Guénel, Lothar Haeberle, Eric Hahnen, Christopher A. Haiman, Niclas Håkansson, Per Hall, Ute Hamann, Patricia A. Harrington, Steven N. Hart, Wei He, Frans B. L. Hogervorst, Antoinette Hollestelle, John L. Hopper, Darling J. Horcasitas, Peter J. Hulick, David J. Hunter, Evgeny N. Imyanitov, KConFab Investigators, HEBON Investigators, ABCTB Investigators, Agnes Jager, Anna Jakubowska, Paul A. James, Uffe Birk Jensen, Esther M. John, Michael E. Jones, Rudolf Kaaks, Pooja Middha Kapoor, Beth Y. Karlan, Renske Keeman, Elza Khusnutdinova, Johanna I. Kiiski, Yon-Dschun Ko, Veli-Matti Kosma, Peter Kraft, Allison W. Kurian, Yael Laitman, Diether Lambrechts, Loic Le Marchand, Jenny Lester, Fabienne Lesueur, Tricia Lindstrom, Adria Lopez-Fernández, Jennifer T. Loud, Craig Luccarini, Arto Mannermaa, Siranoush Manoukian, Sara Margolin, John W. M. Martens, Noura Mebirouk, Alfons Meindl, Austin Miller, Roger L. Milne, Marco Montagna, Katherine L. Nathanson, Susan L. Neuhausen, Heli Nevanlinna, Finn C. Nielsen, Katie M. O’Brien, Olufunmilayo I. Olopade, Janet E. Olson, Håkan Olsson, Ana Osorio, Laura Ottini, Tjoung-Won Park-Simon, Michael T. Parsons, Inge Sokilde Pedersen, Beth Peshkin, Paolo Peterlongo, Julian Peto, Paul D. P. Pharoah, Kelly-Anne Phillips, Eric C. Polley, Bruce Poppe, Nadege Presneau, Miquel Angel Pujana, Kevin Punie, Paolo Radice, Johanna Rantala, Muhammad U. Rashid, Gad Rennert, Hedy S. Rennert, Mark Robson, Atocha Romero, Maria Rossing, Emmanouil Saloustros, Dale P. Sandler, Regina Santella, Maren T. Scheuner, Marjanka K. Schmidt, Gunnar Schmidt, Christopher Scott, Priyanka Sharma, Penny Soucy, Melissa C. Southey, John J. Spinelli, Zoe Steinsnyder, Jennifer Stone, Dominique Stoppa-Lyonnet, Anthony Swerdlow, Rulla M. Tamimi, William J. Tapper, Jack A. Taylor, Mary Beth Terry, Alex Teulé, Darcy L. Thull, Marc Tischkowitz, Amanda E. Toland, Diana Torres, Alison H. Trainer, Thérèse Truong, Nadine Tung, Celine M. Vachon, Ana Vega, Joseph Vijai, Qin Wang, Barbara Wappenschmidt, Clarice R. Weinberg, Jeffrey N. Weitzel, Camilla Wendt, Alicja Wolk, Siddhartha Yadav, Xiaohong R. Yang, Drakoulis Yannoukakos, Wei Zheng, Argyrios Ziogas, Kristin K. Zorn, Sue K. Park, Mads Thomassen, Kenneth Offit, Rita K. Schmutzler, Fergus J. Couch, Jacques Simard, Georgia Chenevix-Trench, Douglas F. Easton, Nadine Andrieu, and Antonis C. Antoniou
Subjects: Science
Abstract: Breast cancer risk for BRCA1/BRCA2 mutation carriers varies depending on other genetic factors. Here, the authors perform a case-only genome-wide association study and highlight novel loci associated with breast cancer risk for BRCA1/BRCA2 mutation carriers.
Published: 2021
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7. MARGINAL: An Automatic Classification of Variants in BRCA1 and BRCA2 Genes Using a Machine Learning Model

Author: Vasiliki Karalidou, Despoina Kalfakakou, Athanasios Papathanasiou, Florentia Fostira, and George K. Matsopoulos
Subjects: genomics, BRCA1/2 genes, machine learning, rare variant interpretation, ACMG-AMP guidelines, variant pathogenicity, Microbiology, QR1-502
Abstract: Implementation of next-generation sequencing (NGS) for the genetic analysis of hereditary diseases has resulted in a vast number of genetic variants identified daily, leading to inadequate variant interpretation and, consequently, a lack of useful clinical information for treatment decisions. Herein, we present MARGINAL 1.0.0, a machine learning (ML)-based software for the interpretation of rare BRCA1 and BRCA2 germline variants. MARGINAL software classifies variants into three categories, namely, (likely) pathogenic, of uncertain significance and (likely) benign, implementing the criteria established by the American College of Medical Genetics and Genomics and the Association for Molecular Pathology (ACMG-AMP). We first annotated BRCA1 and BRCA2 variants using various sources. Then, we automatically implemented the ACMG-AMP criteria, and we finally constructed the ML model for variant classification. To maximize accuracy, we compared the performance of eight different ML algorithms in a classification scheme based on a serial combination of two classifiers. The model showed high predictive abilities with maximum accuracy of 92% and 98%, recall of 92% and 98% and specificity of 90% and 98% for the first and second classifiers, respectively. Our results indicate that using a gene and disease-specific ML automated software for clinical variant evaluation can minimize conflicting interpretations.
Published: 2022
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8. Serum Concentration of Selected Angiogenesis-Related Molecules Differs among Molecular Subtypes, Body Mass Index and Menopausal Status in Breast Cancer Patients

Author: Dimitrios Balalis, Dimitrios Tsakogiannis, Eleni Kalogera, Stefania Kokkali, Elli Tripodaki, Alexandros Ardavanis, Dimitrios Manatakis, Dionysios Dimas, Nektarios Koufopoulos, Florentia Fostira, Dimitrios Korkolis, Ioannis Misitzis, Nikolaos Vassos, Chara Spiliopoulou, Dimitrios Vlachodimitropoulos, Garyfalia Bletsa, and Nikolaos Arkadopoulos
Subjects: angiogenesis, molecules, breast cancer, subtype, body mass index, menopausal status, Medicine
Abstract: Background: Angiogenesis is a hallmark of breast cancer (BC) and is mediated by the vascular endothelial growth factor (VEGF) signaling axis. It is regulated by different proangiogenic factors, including platelet-derived growth factor-CC (PDGF-CC) and heparin-binding EGF-like growth factor (HB-EGF), as well as co-receptors, such as neuropilin-1, which could have prognostic implications in BC patients. Patients and methods: We assessed the serum levels of VEGF, HB-EGF, PDGF-CC and neuropilin-1 in 205 patients with early BC (invasive, n = 187; in situ, n = 18) and in 31 healthy donors (HD) and investigated the potential associations with clinical and histopathological parameters. Results: VEGF serum levels were significantly higher in patients with invasive versus ductal carcinomas in situ. PDGF-CC serum concentrations varied among BC molecular subtypes. Furthermore, we observed a differential expression of most biomarkers between overweight/obese (body mass index (BMI) ≥ 25 kg/m2) and non-obese patients among the BC molecular subtypes. Finally, the classification of subjects according to menopausal status revealed a significant difference in specific biomarker levels between patients and HD. Conclusion: The serum concentrations of angiogenic molecules differ among breast cancer molecular subtypes and are affected by the BMI and menopausal status, which could have possible clinical or prognostic implications.
Published: 2022
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9. Tumor Genotyping and Homologous Recombination Repair Gene Variants in Patients With Epithelial Ovarian Cancer: Is Pathogenic Enough?

Author: Elena Fountzilas, Vassiliki Kotoula, Georgia-Angeliki Koliou, Michalis Liontos, Kyriaki Papadopoulou, Eleni Giannoulatou, Alexios Papanikolaou, Ioannis Tikas, Sofia Chrisafi, Davide Mauri, Kyriakos Chatzopoulos, Florentia Fostira, Dimitrios Pectasides, Georgios Oikonomopoulos, Dimitra Aivazi, Angeliki Andrikopoulou, Anastasios Visvikis, Gerasimos Aravantinos, Flora Zagouri, and George Fountzilas
Subjects: biomarker, BRCA, co-mutation, homologous recombination repair, predictive, prognostic, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Our hypothesis was that the predictive accuracy of pathogenic variants in genes participating in the homologous recombination repair (HRR) system in patients with epithelial ovarian cancer (EOC) could be improved by considering additional next-generation sequencing (NGS) metrics. NGS genotyping was performed in tumor tissue, retrospectively and prospectively collected from patients with EOC, diagnosed from 8/1998 to 10/2016. Variants were considered clonal when variant allele frequencies corresponded to >25%. The primary endpoint was overall survival (OS). This study included 501 patients with EOC, predominantly with high-grade serous (75.2%) and advanced stage tumors (81.7%); median age was 58 years (22-84). Pathogenic and clonal pathogenic variants in HRR and/or TP53 genes were identified in 72.8% and 66.5% tumors, respectively. With a median follow-up of 123.9 months, the presence of either pathogenic or clonal pathogenic HRR-only variants was associated with longer OS compared to HRR/TP53 co-mutation (HR=0.54; 95% CI, 0.34-0.87, Wald’s p=0.012 and HR=0.45; 95% CI, 0.27-0.78, Wald’s p=0.004, respectively). However, only the presence of clonal HRR-only variants was independently associated with improved OS (HR=0.55; 95% CI, 0.32-0.94, p=0.030). Variant clonality and co-occuring TP53 variants affect the predictive value of HRR pathogenic variants for platinum agents in patients with EOC.Clinical Trial Registration[ClinicalTrials.gov], identifier [NCT04716374].
Published: 2021
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10. Publisher Correction: Shared heritability and functional enrichment across six solid cancers

Author: Xia Jiang, Hilary K. Finucane, Fredrick R. Schumacher, Stephanie L. Schmit, Jonathan P. Tyrer, Younghun Han, Kyriaki Michailidou, Corina Lesseur, Karoline B. Kuchenbaecker, Joe Dennis, David V. Conti, Graham Casey, Mia M. Gaudet, Jeroen R. Huyghe, Demetrius Albanes, Melinda C. Aldrich, Angeline S. Andrew, Irene L. Andrulis, Hoda Anton-Culver, Antonis C. Antoniou, Natalia N. Antonenkova, Susanne M. Arnold, Kristan J. Aronson, Banu K. Arun, Elisa V. Bandera, Rosa B. Barkardottir, Daniel R. Barnes, Jyotsna Batra, Matthias W. Beckmann, Javier Benitez, Sara Benlloch, Andrew Berchuck, Sonja I. Berndt, Heike Bickeböller, Stephanie A. Bien, Carl Blomqvist, Stefania Boccia, Natalia V. Bogdanova, Stig E. Bojesen, Manjeet K. Bolla, Hiltrud Brauch, Hermann Brenner, James D. Brenton, Mark N. Brook, Joan Brunet, Hans Brunnström, Daniel D. Buchanan, Barbara Burwinkel, Ralf Butzow, Gabriella Cadoni, Trinidad Caldés, Maria A. Caligo, Ian Campbell, Peter T. Campbell, Géraldine Cancel-Tassin, Lisa Cannon-Albright, Daniele Campa, Neil Caporaso, André L. Carvalho, Andrew T. Chan, Jenny Chang-Claude, Stephen J. Chanock, Chu Chen, David C. Christiani, Kathleen B. M. Claes, Frank Claessens, Judith Clements, J. Margriet Collée, Marcia Cruz Correa, Fergus J. Couch, Angela Cox, Julie M. Cunningham, Cezary Cybulski, Kamila Czene, Mary B. Daly, Anna deFazio, Peter Devilee, Orland Diez, Manuela Gago-Dominguez, Jenny L. Donovan, Thilo Dörk, Eric J. Duell, Alison M. Dunning, Miriam Dwek, Diana M. Eccles, Christopher K. Edlund, Digna R. Velez Edwards, Carolina Ellberg, D. Gareth Evans, Peter A. Fasching, Robert L. Ferris, Triantafillos Liloglou, Jane C. Figueiredo, Olivia Fletcher, Renée T. Fortner, Florentia Fostira, Silvia Franceschi, Eitan Friedman, Steven J. Gallinger, Patricia A. Ganz, Judy Garber, José A. García-Sáenz, Simon A. Gayther, Graham G. Giles, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Ellen L. Goode, Marc T. Goodman, Gary Goodman, Kjell Grankvist, Mark H. Greene, Henrik Gronberg, Jacek Gronwald, Pascal Guénel, Niclas Håkansson, Per Hall, Ute Hamann, Freddie C. Hamdy, Robert J. Hamilton, Jochen Hampe, Aage Haugen, Florian Heitz, Rolando Herrero, Peter Hillemanns, Michael Hoffmeister, Estrid Høgdall, Yun-Chul Hong, John L. Hopper, Richard Houlston, Peter J. Hulick, David J. Hunter, David G. Huntsman, Gregory Idos, Evgeny N. Imyanitov, Sue Ann Ingles, Claudine Isaacs, Anna Jakubowska, Paul James, Mark A. Jenkins, Mattias Johansson, Mikael Johansson, Esther M. John, Amit D. Joshi, Radka Kaneva, Beth Y. Karlan, Linda E. Kelemen, Tabea Kühl, Kay-Tee Khaw, Elza Khusnutdinova, Adam S. Kibel, Lambertus A. Kiemeney, Jeri Kim, Susanne K. Kjaer, Julia A. Knight, Manolis Kogevinas, Zsofia Kote-Jarai, Stella Koutros, Vessela N. Kristensen, Jolanta Kupryjanczyk, Martin Lacko, Stephan Lam, Diether Lambrechts, Maria Teresa Landi, Philip Lazarus, Nhu D. Le, Eunjung Lee, Flavio Lejbkowicz, Heinz-Josef Lenz, Goska Leslie, Davor Lessel, Jenny Lester, Douglas A. Levine, Li Li, Christopher I. Li, Annika Lindblom, Noralane M. Lindor, Geoffrey Liu, Fotios Loupakis, Jan Lubiński, Lovise Maehle, Christiane Maier, Arto Mannermaa, Loic Le Marchand, Sara Margolin, Taymaa May, Lesley McGuffog, Alfons Meindl, Pooja Middha, Austin Miller, Roger L. Milne, Robert J. MacInnis, Francesmary Modugno, Marco Montagna, Victor Moreno, Kirsten B. Moysich, Lorelei Mucci, Kenneth Muir, Anna Marie Mulligan, Katherine L. Nathanson, David E. Neal, Andrew R. Ness, Susan L. Neuhausen, Heli Nevanlinna, Polly A. Newcomb, Lisa F. Newcomb, Finn Cilius Nielsen, Liene Nikitina-Zake, Børge G. Nordestgaard, Robert L. Nussbaum, Kenneth Offit, Edith Olah, Ali Amin Al Olama, Olufunmilayo I. Olopade, Andrew F. Olshan, Håkan Olsson, Ana Osorio, Hardev Pandha, Jong Y. Park, Nora Pashayan, Michael T. Parsons, Tanja Pejovic, Kathryn L. Penney, Wilbert H. M. Peters, Catherine M. Phelan, Amanda I. Phipps, Dijana Plaseska-Karanfilska, Miranda Pring, Darya Prokofyeva, Paolo Radice, Kari Stefansson, Susan J. Ramus, Leon Raskin, Gad Rennert, Hedy S. Rennert, Elizabeth J. van Rensburg, Marjorie J. Riggan, Harvey A. Risch, Angela Risch, Monique J. Roobol, Barry S. Rosenstein, Mary Anne Rossing, Kim De Ruyck, Emmanouil Saloustros, Dale P. Sandler, Elinor J. Sawyer, Matthew B. Schabath, Johanna Schleutker, Marjanka K. Schmidt, V. Wendy Setiawan, Hongbing Shen, Erin M. Siegel, Weiva Sieh, Christian F. Singer, Martha L. Slattery, Karina Dalsgaard Sorensen, Melissa C. Southey, Amanda B. Spurdle, Janet L. Stanford, Victoria L. Stevens, Sebastian Stintzing, Jennifer Stone, Karin Sundfeldt, Rebecca Sutphen, Anthony J. Swerdlow, Eloiza H. Tajara, Catherine M. Tangen, Adonina Tardon, Jack A. Taylor, M. Dawn Teare, Manuel R. Teixeira, Mary Beth Terry, Kathryn L. Terry, Stephen N. Thibodeau, Mads Thomassen, Line Bjørge, Marc Tischkowitz, Amanda E. Toland, Diana Torres, Paul A. Townsend, Ruth C. Travis, Nadine Tung, Shelley S. Tworoger, Cornelia M. Ulrich, Nawaid Usmani, Celine M. Vachon, Els Van Nieuwenhuysen, Ana Vega, Miguel Elías Aguado-Barrera, Qin Wang, Penelope M. Webb, Clarice R. Weinberg, Stephanie Weinstein, Mark C. Weissler, Jeffrey N. Weitzel, Catharine M. L. West, Emily White, Alice S. Whittemore, H-Erich Wichmann, Fredrik Wiklund, Robert Winqvist, Alicja Wolk, Penella Woll, Michael Woods, Anna H. Wu, Xifeng Wu, Drakoulis Yannoukakos, Wei Zheng, Shanbeh Zienolddiny, Argyrios Ziogas, Kristin K. Zorn, Jacqueline M. Lane, Richa Saxena, Duncan Thomas, Rayjean J. Hung, Brenda Diergaarde, James McKay, Ulrike Peters, Li Hsu, Montserrat García-Closas, Rosalind A. Eeles, Georgia Chenevix-Trench, Paul J. Brennan, Christopher A. Haiman, Jacques Simard, Douglas F. Easton, Stephen B. Gruber, Paul D. P. Pharoah, Alkes L. Price, Bogdan Pasaniuc, Christopher I. Amos, Peter Kraft, and Sara Lindström
Subjects: Science
Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Published: 2019
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11. Shared heritability and functional enrichment across six solid cancers

Author: Xia Jiang, Hilary K. Finucane, Fredrick R. Schumacher, Stephanie L. Schmit, Jonathan P. Tyrer, Younghun Han, Kyriaki Michailidou, Corina Lesseur, Karoline B. Kuchenbaecker, Joe Dennis, David V. Conti, Graham Casey, Mia M. Gaudet, Jeroen R. Huyghe, Demetrius Albanes, Melinda C. Aldrich, Angeline S. Andrew, Irene L. Andrulis, Hoda Anton-Culver, Antonis C. Antoniou, Natalia N. Antonenkova, Susanne M. Arnold, Kristan J. Aronson, Banu K. Arun, Elisa V. Bandera, Rosa B. Barkardottir, Daniel R. Barnes, Jyotsna Batra, Matthias W. Beckmann, Javier Benitez, Sara Benlloch, Andrew Berchuck, Sonja I. Berndt, Heike Bickeböller, Stephanie A. Bien, Carl Blomqvist, Stefania Boccia, Natalia V. Bogdanova, Stig E. Bojesen, Manjeet K. Bolla, Hiltrud Brauch, Hermann Brenner, James D. Brenton, Mark N. Brook, Joan Brunet, Hans Brunnström, Daniel D. Buchanan, Barbara Burwinkel, Ralf Butzow, Gabriella Cadoni, Trinidad Caldés, Maria A. Caligo, Ian Campbell, Peter T. Campbell, Géraldine Cancel-Tassin, Lisa Cannon-Albright, Daniele Campa, Neil Caporaso, André L. Carvalho, Andrew T. Chan, Jenny Chang-Claude, Stephen J. Chanock, Chu Chen, David C. Christiani, Kathleen B. M. Claes, Frank Claessens, Judith Clements, J. Margriet Collée, Marcia Cruz Correa, Fergus J. Couch, Angela Cox, Julie M. Cunningham, Cezary Cybulski, Kamila Czene, Mary B. Daly, Anna deFazio, Peter Devilee, Orland Diez, Manuela Gago-Dominguez, Jenny L. Donovan, Thilo Dörk, Eric J. Duell, Alison M. Dunning, Miriam Dwek, Diana M. Eccles, Christopher K. Edlund, Digna R Velez Edwards, Carolina Ellberg, D. Gareth Evans, Peter A. Fasching, Robert L. Ferris, Triantafillos Liloglou, Jane C. Figueiredo, Olivia Fletcher, Renée T. Fortner, Florentia Fostira, Silvia Franceschi, Eitan Friedman, Steven J. Gallinger, Patricia A. Ganz, Judy Garber, José A. García-Sáenz, Simon A. Gayther, Graham G. Giles, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Ellen L. Goode, Marc T. Goodman, Gary Goodman, Kjell Grankvist, Mark H. Greene, Henrik Gronberg, Jacek Gronwald, Pascal Guénel, Niclas Håkansson, Per Hall, Ute Hamann, Freddie C. Hamdy, Robert J. Hamilton, Jochen Hampe, Aage Haugen, Florian Heitz, Rolando Herrero, Peter Hillemanns, Michael Hoffmeister, Estrid Høgdall, Yun-Chul Hong, John L. Hopper, Richard Houlston, Peter J. Hulick, David J. Hunter, David G. Huntsman, Gregory Idos, Evgeny N. Imyanitov, Sue Ann Ingles, Claudine Isaacs, Anna Jakubowska, Paul James, Mark A. Jenkins, Mattias Johansson, Mikael Johansson, Esther M. John, Amit D. Joshi, Radka Kaneva, Beth Y. Karlan, Linda E. Kelemen, Tabea Kühl, Kay-Tee Khaw, Elza Khusnutdinova, Adam S. Kibel, Lambertus A. Kiemeney, Jeri Kim, Susanne K. Kjaer, Julia A. Knight, Manolis Kogevinas, Zsofia Kote-Jarai, Stella Koutros, Vessela N. Kristensen, Jolanta Kupryjanczyk, Martin Lacko, Stephan Lam, Diether Lambrechts, Maria Teresa Landi, Philip Lazarus, Nhu D. Le, Eunjung Lee, Flavio Lejbkowicz, Heinz-Josef Lenz, Goska Leslie, Davor Lessel, Jenny Lester, Douglas A. Levine, Li Li, Christopher I. Li, Annika Lindblom, Noralane M. Lindor, Geoffrey Liu, Fotios Loupakis, Jan Lubiński, Lovise Maehle, Christiane Maier, Arto Mannermaa, Loic Le Marchand, Sara Margolin, Taymaa May, Lesley McGuffog, Alfons Meindl, Pooja Middha, Austin Miller, Roger L. Milne, Robert J. MacInnis, Francesmary Modugno, Marco Montagna, Victor Moreno, Kirsten B. Moysich, Lorelei Mucci, Kenneth Muir, Anna Marie Mulligan, Katherine L. Nathanson, David E. Neal, Andrew R. Ness, Susan L. Neuhausen, Heli Nevanlinna, Polly A. Newcomb, Lisa F. Newcomb, Finn Cilius Nielsen, Liene Nikitina-Zake, Børge G. Nordestgaard, Robert L. Nussbaum, Kenneth Offit, Edith Olah, Ali Amin Al Olama, Olufunmilayo I. Olopade, Andrew F. Olshan, Håkan Olsson, Ana Osorio, Hardev Pandha, Jong Y. Park, Nora Pashayan, Michael T. Parsons, Tanja Pejovic, Kathryn L. Penney, Wilbert H M. Peters, Catherine M. Phelan, Amanda I. Phipps, Dijana Plaseska-Karanfilska, Miranda Pring, Darya Prokofyeva, Paolo Radice, Kari Stefansson, Susan J. Ramus, Leon Raskin, Gad Rennert, Hedy S. Rennert, Elizabeth J. van Rensburg, Marjorie J. Riggan, Harvey A. Risch, Angela Risch, Monique J. Roobol, Barry S. Rosenstein, Mary Anne Rossing, Kim De Ruyck, Emmanouil Saloustros, Dale P. Sandler, Elinor J. Sawyer, Matthew B. Schabath, Johanna Schleutker, Marjanka K. Schmidt, V. Wendy Setiawan, Hongbing Shen, Erin M. Siegel, Weiva Sieh, Christian F. Singer, Martha L. Slattery, Karina Dalsgaard Sorensen, Melissa C. Southey, Amanda B. Spurdle, Janet L. Stanford, Victoria L. Stevens, Sebastian Stintzing, Jennifer Stone, Karin Sundfeldt, Rebecca Sutphen, Anthony J. Swerdlow, Eloiza H. Tajara, Catherine M. Tangen, Adonina Tardon, Jack A. Taylor, M. Dawn Teare, Manuel R. Teixeira, Mary Beth Terry, Kathryn L. Terry, Stephen N. Thibodeau, Mads Thomassen, Line Bjørge, Marc Tischkowitz, Amanda E. Toland, Diana Torres, Paul A. Townsend, Ruth C. Travis, Nadine Tung, Shelley S. Tworoger, Cornelia M. Ulrich, Nawaid Usmani, Celine M. Vachon, Els Van Nieuwenhuysen, Ana Vega, Miguel Elías Aguado-Barrera, Qin Wang, Penelope M. Webb, Clarice R. Weinberg, Stephanie Weinstein, Mark C. Weissler, Jeffrey N. Weitzel, Catharine M. L. West, Emily White, Alice S. Whittemore, H-Erich Wichmann, Fredrik Wiklund, Robert Winqvist, Alicja Wolk, Penella Woll, Michael Woods, Anna H. Wu, Xifeng Wu, Drakoulis Yannoukakos, Wei Zheng, Shanbeh Zienolddiny, Argyrios Ziogas, Kristin K. Zorn, Jacqueline M. Lane, Richa Saxena, Duncan Thomas, Rayjean J. Hung, Brenda Diergaarde, James McKay, Ulrike Peters, Li Hsu, Montserrat García-Closas, Rosalind A. Eeles, Georgia Chenevix-Trench, Paul J. Brennan, Christopher A. Haiman, Jacques Simard, Douglas F. Easton, Stephen B. Gruber, Paul D. P. Pharoah, Alkes L. Price, Bogdan Pasaniuc, Christopher I. Amos, Peter Kraft, and Sara Lindström
Subjects: Science
Abstract: Similarities in cancers can be studied to interrogate their etiology. Here, the authors use genome-wide association study summary statistics from six cancer types based on 296,215 cases and 301,319 controls of European ancestry, showing that solid tumours arising from different tissues share a degree of common germline genetic basis.
Published: 2019
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12. Management and Long-Term Follow-Up of Hyperparathyroidism in Multiple Endocrine Neoplasia Type 1: Single Center Experience

Author: Maria P. Yavropoulou, Sofia Vlachou, Marina Tsoli, Florentia Fostira, Gregory Kaltsas, and Eva Kassi
Subjects: primary hyperparathyroidism, MEN1, long-term follow-up, cinacalcet, permanent hypoparathyroidism, Medicine
Abstract: Background: Primary hyperparathyroidism (PHPT) in the most common and earliest manifestation of multiple endocrine neoplasia type-1 (MEN1). Epidemiological data have been reported in MEN1 patients but data on long-term follow-up focusing on PHPT are scarce. Methods: In this retrospective cohort study, we included patients diagnosed with MEN1-related PHPT that were under regular follow-up in our institution. Results: Data on 68 patients (39 males), with a mean age at MEN1-diagnosis of 39 ± 13.06 years, were analyzed. Pancreatic neuroendocrine tumors were encountered in 82% (71% nonsecreting) followed by pituitary adenomas in 66% (49% nonsecreting). Mean age at PHPT diagnosis was 35.2 ± 4.0 years. Parathyroidectomy was performed in 57 patients (82.3%), of whom 56% achieved long-term remission, while 12.2% and 31.5% had persistent and recurrent disease, respectively (median follow-up of 4 years; range 1–21 years). Cinacalcet restored serum calcium levels in 33.8%, both as first and as a second line treatment. Permanent hypoparathyroidism occurred in 19.2%. MEN1 pathogenic variants were identified in 77.2% of the tested individuals, but no genotype-phenotype associations were reported. Conclusions: MEN1-related PHPT involves a multiglandular disease and its management remains a therapeutic challenge, as recurrent disease can develop even after 20 years of follow-up. Prolonged follow-up of these patients at referral centers is critical for their optimal management.
Published: 2022
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13. Author Correction: A case-only study to identify genetic modifiers of breast cancer risk for BRCA1/BRCA2 mutation carriers

Author: Juliette Coignard, Michael Lush, Jonathan Beesley, Tracy A. O’Mara, Joe Dennis, Jonathan P. Tyrer, Daniel R. Barnes, Lesley McGuffog, Goska Leslie, Manjeet K. Bolla, Muriel A. Adank, Simona Agata, Thomas Ahearn, Kristiina Aittomäki, Irene L. Andrulis, Hoda Anton-Culver, Volker Arndt, Norbert Arnold, Kristan J. Aronson, Banu K. Arun, Annelie Augustinsson, Jacopo Azzollini, Daniel Barrowdale, Caroline Baynes, Heko Becher, Marina Bermisheva, Leslie Bernstein, Katarzyna Białkowska, Carl Blomqvist, Stig E. Bojesen, Bernardo Bonanni, Ake Borg, Hiltrud Brauch, Hermann Brenner, Barbara Burwinkel, Saundra S. Buys, Trinidad Caldés, Maria A. Caligo, Daniele Campa, Brian D. Carter, Jose E. Castelao, Jenny Chang-Claude, Stephen J. Chanock, Wendy K. Chung, Kathleen B. M. Claes, Christine L. Clarke, GEMO Study Collaborators, EMBRACE Collaborators, J. Margriet Collée, Don M. Conroy, Kamila Czene, Mary B. Daly, Peter Devilee, Orland Diez, Yuan Chun Ding, Susan M. Domchek, Thilo Dörk, Isabel dos-Santos-Silva, Alison M. Dunning, Miriam Dwek, Diana M. Eccles, A. Heather Eliassen, Christoph Engel, Mikael Eriksson, D. Gareth Evans, Peter A. Fasching, Henrik Flyger, Florentia Fostira, Eitan Friedman, Lin Fritschi, Debra Frost, Manuela Gago-Dominguez, Susan M. Gapstur, Judy Garber, Vanesa Garcia-Barberan, Montserrat García-Closas, José A. García-Sáenz, Mia M. Gaudet, Simon A. Gayther, Andrea Gehrig, Vassilios Georgoulias, Graham G. Giles, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Anna González-Neira, Mark H. Greene, Pascal Guénel, Lothar Haeberle, Eric Hahnen, Christopher A. Haiman, Niclas Håkansson, Per Hall, Ute Hamann, Patricia A. Harrington, Steven N. Hart, Wei He, Frans B. L. Hogervorst, Antoinette Hollestelle, John L. Hopper, Darling J. Horcasitas, Peter J. Hulick, David J. Hunter, Evgeny N. Imyanitov, KConFab Investigators, HEBON Investigators, ABCTB Investigators, Agnes Jager, Anna Jakubowska, Paul A. James, Uffe Birk Jensen, Esther M. John, Michael E. Jones, Rudolf Kaaks, Pooja Middha Kapoor, Beth Y. Karlan, Renske Keeman, Elza Khusnutdinova, Johanna I. Kiiski, Yon-Dschun Ko, Veli-Matti Kosma, Peter Kraft, Allison W. Kurian, Yael Laitman, Diether Lambrechts, Loic Le Marchand, Jenny Lester, Fabienne Lesueur, Tricia Lindstrom, Adria Lopez-Fernández, Jennifer T. Loud, Craig Luccarini, Arto Mannermaa, Siranoush Manoukian, Sara Margolin, John W. M. Martens, Noura Mebirouk, Alfons Meindl, Austin Miller, Roger L. Milne, Marco Montagna, Katherine L. Nathanson, Susan L. Neuhausen, Heli Nevanlinna, Finn C. Nielsen, Katie M. O’Brien, Olufunmilayo I. Olopade, Janet E. Olson, Håkan Olsson, Ana Osorio, Laura Ottini, Tjoung-Won Park-Simon, Michael T. Parsons, Inge Sokilde Pedersen, Beth Peshkin, Paolo Peterlongo, Julian Peto, Paul D. P. Pharoah, Kelly-Anne Phillips, Eric C. Polley, Bruce Poppe, Nadege Presneau, Miquel Angel Pujana, Kevin Punie, Paolo Radice, Johanna Rantala, Muhammad U. Rashid, Gad Rennert, Hedy S. Rennert, Mark Robson, Atocha Romero, Maria Rossing, Emmanouil Saloustros, Dale P. Sandler, Regina Santella, Maren T. Scheuner, Marjanka K. Schmidt, Gunnar Schmidt, Christopher Scott, Priyanka Sharma, Penny Soucy, Melissa C. Southey, John J. Spinelli, Zoe Steinsnyder, Jennifer Stone, Dominique Stoppa-Lyonnet, Anthony Swerdlow, Rulla M. Tamimi, William J. Tapper, Jack A. Taylor, Mary Beth Terry, Alex Teulé, Darcy L. Thull, Marc Tischkowitz, Amanda E. Toland, Diana Torres, Alison H. Trainer, Thérèse Truong, Nadine Tung, Celine M. Vachon, Ana Vega, Joseph Vijai, Qin Wang, Barbara Wappenschmidt, Clarice R. Weinberg, Jeffrey N. Weitzel, Camilla Wendt, Alicja Wolk, Siddhartha Yadav, Xiaohong R. Yang, Drakoulis Yannoukakos, Wei Zheng, Argyrios Ziogas, Kristin K. Zorn, Sue K. Park, Mads Thomassen, Kenneth Offit, Rita K. Schmutzler, Fergus J. Couch, Jacques Simard, Georgia Chenevix-Trench, Douglas F. Easton, Nadine Andrieu, and Antonis C. Antoniou
Subjects: Science
Abstract: A Correction to this paper has been published: https://doi.org/10.1038/s41467-021-23162-4
Published: 2021
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14. CHEK2 Pathogenic Variants in Greek Breast Cancer Patients: Evidence for Strong Associations with Estrogen Receptor Positivity, Overuse of Risk-Reducing Procedures and Population Founder Effects

Author: Paraskevi Apostolou, Vasiliki Dellatola, Christos Papadimitriou, Despoina Kalfakakou, Elena Fountzilas, Eleni Faliakou, Georgios Fountzilas, Ourania Romanidou, Irene Konstantopoulou, and Florentia Fostira
Subjects: CHEK2, hereditary breast cancer, founder effect, estrogen receptor, genetic testing, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: CHEK2 germline pathogenic variants predispose to breast cancer and possibly to other malignancies, with their spectrum and frequency being variable among populations. Τhe majority of CHEK2-associated breast tumors are hormone receptor positive; however, relevant clinical outcomes are not well defined. Herein, we illustrate the histopathological characteristics and clinical outcomes of 52 Greek breast cancer patients who are CHEK2 carriers. Genetic analysis was performed by Sanger/massively parallel sequencing, followed by MLPA. Subsequent haplotype analysis investigated possible founder effects. Blood relatives were offered cascade testing. CHEK2 variant spectrum was characterized by variability, while influenced by founder effects. The majority of carriers, i.e., 60.8%, were diagnosed with breast cancer before the age of 45. Notably, 91.5% of breast tumors were hormone receptor positive. Hormone therapy and mastectomy at diagnosis seem to have a positive trend on overall survival, after a median follow-up of 9.5 years. Remarkably, 41.9% of patients underwent risk-reducing surgery, one third of which involved salpingo-oophorectomy. Nearly half of families responded to cascade testing. Our data highlight the need for guideline-adherent choices, based on the evidence that CHEK2 carriers are at moderate risk for breast cancer and no risk for ovarian cancer, while underscore the possible role of chemoprevention with tamoxifen.
Published: 2021
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15. A Patient Affected with Serous Ovarian/Peritoneal Carcinoma Carrying the FANCM Mutation

Author: Adamantia Nikolaidi, Irene Konstantopoulou, Nikolaos Pistalmantzian, Florentia Fostira, Drakoulis Yannoukakos, and Ilias Athanasiadis
Subjects: Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: We report a case of a 58-year-old female with ovarian cancer. The patient presented with ascites, and the biopsies revealed a low-grade adenocarcinoma, either a serous papillary ovarian cancer with peritoneal implants or a primary peritoneal carcinoma. She received neoadjuvant chemotherapy and after 5 cycles achieved partial response, and then, she underwent a total hysterectomy/bilateral salpingo-oophorectomy. The patient underwent germline gene-panel testing for the detection of mutations in cancer predisposing genes. A truncating mutation in the Fanconi anemia complementation group M (FANCM) gene was detected in heterozygosity, namely, p.Arg658Ter (c.1972C>T, rs368728266). The patient’s family history is unremarkable, with no reported cases of breast or ovarian cancer, a fact that can be attributed to the significant lower penetrance of FANCM mutations.
Published: 2019
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16. Clinical Significance of Germline Cancer Predisposing Variants in Unselected Patients with Pancreatic Adenocarcinoma

Author: Elena Fountzilas, Alexia Eliades, Georgia-Angeliki Koliou, Achilleas Achilleos, Charalambos Loizides, Kyriakos Tsangaras, Dimitrios Pectasides, Joseph Sgouros, Pavlos Papakostas, Grigorios Rallis, Amanda Psyrri, Christos Papadimitriou, Georgios Oikonomopoulos, Konstantinos Ferentinos, Anna Koumarianou, George Zarkavelis, Christos Dervenis, Gerasimos Aravantinos, Dimitrios Bafaloukos, Paris Kosmidis, George Papaxoinis, Maria Theochari, Ioannis Varthalitis, Nikolaos Kentepozidis, Georgios Rigakos, Zacharenia Saridaki, Adamantia Nikolaidi, Athina Christopoulou, Florentia Fostira, Epaminontas Samantas, Elena Kypri, Marios Ioannides, George Koumbaris, George Fountzilas, and Philippos C. Patsalis
Subjects: BRCA2, inherited, overall survival, predictive, prognostic, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Our aim was to determine the prevalence, prognostic and predictive role of germline pathogenic/likely pathogenic variants (P/LPVs) in cancer predisposing genes in patients with pancreatic ductal adenocarcinoma (PDAC). Germline testing of 62 cancer susceptibility genes was performed on unselected patients diagnosed from 02/2003 to 01/2020 with PDAC, treated at Hellenic Cooperative Oncology Group (HeCOG)-affiliated Centers. The main endpoints were prevalence of P/LPVs and overall survival (OS). P/LPVs in PDAC-associated and homologous recombination repair (HRR) genes were identified in 22 (4.0%) and 42 (7.7%) of 549 patients, respectively. P/LPVs were identified in 16 genes, including ATM (11, 2.0%) and BRCA2 (6, 1.1%), while 19 patients (3.5%) were heterozygotes for MUTYH P/LPVs and 9 (1.6%) carried the low-risk allele, CHEK2 p.(Ile157Thr). Patients carrying P/LPVs had improved OS compared to non-carriers (22.6 vs. 13.9 months, p = 0.006). In multivariate analysis, there was a trend for improved OS in P/LPV carriers (p = 0.063). The interaction term between platinum exposure and mutational status of HRR genes was not significant (p-value = 0.35). A significant proportion of patients with PDAC carries clinically relevant germline P/LPVs, irrespectively of age, family history or disease stage. The predictive role of these P/LPVs has yet to be defined. ClinicalTrials.gov Identifier: NCT03982446.
Published: 2021
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17. Functional mechanisms underlying pleiotropic risk alleles at the 19p13.1 breast–ovarian cancer susceptibility locus

Author: Kate Lawrenson, Siddhartha Kar, Karen McCue, Karoline Kuchenbaeker, Kyriaki Michailidou, Jonathan Tyrer, Jonathan Beesley, Susan J. Ramus, Qiyuan Li, Melissa K. Delgado, Janet M. Lee, Kristiina Aittomäki, Irene L. Andrulis, Hoda Anton-Culver, Volker Arndt, Banu K. Arun, Brita Arver, Elisa V. Bandera, Monica Barile, Rosa B. Barkardottir, Daniel Barrowdale, Matthias W. Beckmann, Javier Benitez, Andrew Berchuck, Maria Bisogna, Line Bjorge, Carl Blomqvist, William Blot, Natalia Bogdanova, Anders Bojesen, Stig E. Bojesen, Manjeet K. Bolla, Bernardo Bonanni, Anne-Lise Børresen-Dale, Hiltrud Brauch, Paul Brennan, Hermann Brenner, Fiona Bruinsma, Joan Brunet, Shaik Ahmad Buhari, Barbara Burwinkel, Ralf Butzow, Saundra S. Buys, Qiuyin Cai, Trinidad Caldes, Ian Campbell, Rikki Canniotto, Jenny Chang-Claude, Jocelyne Chiquette, Ji-Yeob Choi, Kathleen B. M. Claes, GEMO Study Collaborators, Linda S. Cook, Angela Cox, Daniel W. Cramer, Simon S. Cross, Cezary Cybulski, Kamila Czene, Mary B. Daly, Francesca Damiola, Agnieszka Dansonka-Mieszkowska, Hatef Darabi, Joe Dennis, Peter Devilee, Orland Diez, Jennifer A. Doherty, Susan M. Domchek, Cecilia M. Dorfling, Thilo Dörk, Martine Dumont, Hans Ehrencrona, Bent Ejlertsen, Steve Ellis, EMBRACE, Christoph Engel, Eunjung Lee, D. Gareth Evans, Peter A. Fasching, Lidia Feliubadalo, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Henrik Flyger, Lenka Foretova, Florentia Fostira, William D. Foulkes, Brooke L. Fridley, Eitan Friedman, Debra Frost, Gaetana Gambino, Patricia A. Ganz, Judy Garber, Montserrat García-Closas, Aleksandra Gentry-Maharaj, Maya Ghoussaini, Graham G. Giles, Rosalind Glasspool, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Anna González-Neira, Ellen L. Goode, Marc T. Goodman, Mark H. Greene, Jacek Gronwald, Pascal Guénel, Christopher A. Haiman, Per Hall, Emily Hallberg, Ute Hamann, Thomas V. O. Hansen, Patricia A. Harrington, Mikael Hartman, Norhashimah Hassan, Sue Healey, The Hereditary Breast and Ovarian Cancer Research Group Netherlands (HEBON), Florian Heitz, Josef Herzog, Estrid Høgdall, Claus K. Høgdall, Frans B. L. Hogervorst, Antoinette Hollestelle, John L. Hopper, Peter J. Hulick, Tomasz Huzarski, Evgeny N. Imyanitov, KConFab Investigators, Australian Ovarian Cancer Study Group, Claudine Isaacs, Hidemi Ito, Anna Jakubowska, Ramunas Janavicius, Allan Jensen, Esther M. John, Nichola Johnson, Maria Kabisch, Daehee Kang, Miroslav Kapuscinski, Beth Y. Karlan, Sofia Khan, Lambertus A. Kiemeney, Susanne Kruger Kjaer, Julia A. Knight, Irene Konstantopoulou, Veli-Matti Kosma, Vessela Kristensen, Jolanta Kupryjanczyk, Ava Kwong, Miguel de la Hoya, Yael Laitman, Diether Lambrechts, Nhu Le, Kim De Leeneer, Jenny Lester, Douglas A. Levine, Jingmei Li, Annika Lindblom, Jirong Long, Artitaya Lophatananon, Jennifer T. Loud, Karen Lu, Jan Lubinski, Arto Mannermaa, Siranoush Manoukian, Loic Le Marchand, Sara Margolin, Frederik Marme, Leon F. A. G. Massuger, Keitaro Matsuo, Sylvie Mazoyer, Lesley McGuffog, Catriona McLean, Iain McNeish, Alfons Meindl, Usha Menon, Arjen R. Mensenkamp, Roger L. Milne, Marco Montagna, Kirsten B. Moysich, Kenneth Muir, Anna Marie Mulligan, Katherine L. Nathanson, Roberta B. Ness, Susan L. Neuhausen, Heli Nevanlinna, Silje Nord, Robert L. Nussbaum, Kunle Odunsi, Kenneth Offit, Edith Olah, Olufunmilayo I. Olopade, Janet E. Olson, Curtis Olswold, David O’Malley, Irene Orlow, Nick Orr, Ana Osorio, Sue Kyung Park, Celeste L. Pearce, Tanja Pejovic, Paolo Peterlongo, Georg Pfeiler, Catherine M. Phelan, Elizabeth M. Poole, Katri Pylkäs, Paolo Radice, Johanna Rantala, Muhammad Usman Rashid, Gad Rennert, Valerie Rhenius, Kerstin Rhiem, Harvey A. Risch, Gus Rodriguez, Mary Anne Rossing, Anja Rudolph, Helga B. Salvesen, Suleeporn Sangrajrang, Elinor J. Sawyer, Joellen M. Schildkraut, Marjanka K. Schmidt, Rita K. Schmutzler, Thomas A. Sellers, Caroline Seynaeve, Mitul Shah, Chen-Yang Shen, Xiao-Ou Shu, Weiva Sieh, Christian F. Singer, Olga M. Sinilnikova, Susan Slager, Honglin Song, Penny Soucy, Melissa C. Southey, Marie Stenmark-Askmalm, Dominique Stoppa-Lyonnet, Christian Sutter, Anthony Swerdlow, Sandrine Tchatchou, Manuel R. Teixeira, Soo H. Teo, Kathryn L. Terry, Mary Beth Terry, Mads Thomassen, Maria Grazia Tibiletti, Laima Tihomirova, Silvia Tognazzo, Amanda Ewart Toland, Ian Tomlinson, Diana Torres, Thérèse Truong, Chiu-chen Tseng, Nadine Tung, Shelley S. Tworoger, Celine Vachon, Ans M. W. van den Ouweland, Helena C. van Doorn, Elizabeth J. van Rensburg, Laura J. Van't Veer, Adriaan Vanderstichele, Ignace Vergote, Joseph Vijai, Qin Wang, Shan Wang-Gohrke, Jeffrey N. Weitzel, Nicolas Wentzensen, Alice S. Whittemore, Hans Wildiers, Robert Winqvist, Anna H. Wu, Drakoulis Yannoukakos, Sook-Yee Yoon, Jyh-Cherng Yu, Wei Zheng, Ying Zheng, Kum Kum Khanna, Jacques Simard, Alvaro N. Monteiro, Juliet D. French, Fergus J. Couch, Matthew L. Freedman, Douglas F. Easton, Alison M. Dunning, Paul D. Pharoah, Stacey L. Edwards, Georgia Chenevix-Trench, Antonis C. Antoniou, and Simon A. Gayther
Subjects: Science
Abstract: A region on chromosome 19p13 is associated with the risk of developing ovarian and breast cancer. Here, the authors genotyped SNPs in this region in thousands of breast and ovarian cancer patients and identified SNPs associated with three genes, which were analysed with functional studies.
Published: 2016
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18. Identification of four novel susceptibility loci for oestrogen receptor negative breast cancer

Author: Fergus J. Couch, Karoline B. Kuchenbaecker, Kyriaki Michailidou, Gustavo A. Mendoza-Fandino, Silje Nord, Janna Lilyquist, Curtis Olswold, Emily Hallberg, Simona Agata, Habibul Ahsan, Kristiina Aittomäki, Christine Ambrosone, Irene L. Andrulis, Hoda Anton-Culver, Volker Arndt, Banu K. Arun, Brita Arver, Monica Barile, Rosa B. Barkardottir, Daniel Barrowdale, Lars Beckmann, Matthias W. Beckmann, Javier Benitez, Stephanie V. Blank, Carl Blomqvist, Natalia V. Bogdanova, Stig E. Bojesen, Manjeet K. Bolla, Bernardo Bonanni, Hiltrud Brauch, Hermann Brenner, Barbara Burwinkel, Saundra S. Buys, Trinidad Caldes, Maria A. Caligo, Federico Canzian, Jane Carpenter, Jenny Chang-Claude, Stephen J. Chanock, Wendy K. Chung, Kathleen B. M. Claes, Angela Cox, Simon S. Cross, Julie M. Cunningham, Kamila Czene, Mary B. Daly, Francesca Damiola, Hatef Darabi, Miguel de la Hoya, Peter Devilee, Orland Diez, Yuan C. Ding, Riccardo Dolcetti, Susan M. Domchek, Cecilia M. Dorfling, Isabel dos-Santos-Silva, Martine Dumont, Alison M. Dunning, Diana M. Eccles, Hans Ehrencrona, Arif B. Ekici, Heather Eliassen, Steve Ellis, Peter A. Fasching, Jonine Figueroa, Dieter Flesch-Janys, Asta Försti, Florentia Fostira, William D. Foulkes, Tara Friebel, Eitan Friedman, Debra Frost, Marike Gabrielson, Marilie D. Gammon, Patricia A. Ganz, Susan M. Gapstur, Judy Garber, Mia M. Gaudet, Simon A. Gayther, Anne-Marie Gerdes, Maya Ghoussaini, Graham G. Giles, Gord Glendon, Andrew K. Godwin, Mark S. Goldberg, David E. Goldgar, Anna González-Neira, Mark H. Greene, Jacek Gronwald, Pascal Guénel, Marc Gunter, Lothar Haeberle, Christopher A. Haiman, Ute Hamann, Thomas V. O. Hansen, Steven Hart, Sue Healey, Tuomas Heikkinen, Brian E. Henderson, Josef Herzog, Frans B. L. Hogervorst, Antoinette Hollestelle, Maartje J. Hooning, Robert N. Hoover, John L. Hopper, Keith Humphreys, David J. Hunter, Tomasz Huzarski, Evgeny N. Imyanitov, Claudine Isaacs, Anna Jakubowska, Paul James, Ramunas Janavicius, Uffe Birk Jensen, Esther M. John, Michael Jones, Maria Kabisch, Siddhartha Kar, Beth Y. Karlan, Sofia Khan, Kay-Tee Khaw, Muhammad G. Kibriya, Julia A. Knight, Yon-Dschun Ko, Irene Konstantopoulou, Veli-Matti Kosma, Vessela Kristensen, Ava Kwong, Yael Laitman, Diether Lambrechts, Conxi Lazaro, Eunjung Lee, Loic Le Marchand, Jenny Lester, Annika Lindblom, Noralane Lindor, Sara Lindstrom, Jianjun Liu, Jirong Long, Jan Lubinski, Phuong L. Mai, Enes Makalic, Kathleen E. Malone, Arto Mannermaa, Siranoush Manoukian, Sara Margolin, Frederik Marme, John W. M. Martens, Lesley McGuffog, Alfons Meindl, Austin Miller, Roger L. Milne, Penelope Miron, Marco Montagna, Sylvie Mazoyer, Anna M. Mulligan, Taru A. Muranen, Katherine L. Nathanson, Susan L. Neuhausen, Heli Nevanlinna, Børge G. Nordestgaard, Robert L. Nussbaum, Kenneth Offit, Edith Olah, Olufunmilayo I. Olopade, Janet E. Olson, Ana Osorio, Sue K. Park, Petra H. Peeters, Bernard Peissel, Paolo Peterlongo, Julian Peto, Catherine M. Phelan, Robert Pilarski, Bruce Poppe, Katri Pylkäs, Paolo Radice, Nazneen Rahman, Johanna Rantala, Christine Rappaport, Gad Rennert, Andrea Richardson, Mark Robson, Isabelle Romieu, Anja Rudolph, Emiel J. Rutgers, Maria-Jose Sanchez, Regina M. Santella, Elinor J. Sawyer, Daniel F. Schmidt, Marjanka K. Schmidt, Rita K. Schmutzler, Fredrick Schumacher, Rodney Scott, Leigha Senter, Priyanka Sharma, Jacques Simard, Christian F. Singer, Olga M. Sinilnikova, Penny Soucy, Melissa Southey, Doris Steinemann, Marie Stenmark-Askmalm, Dominique Stoppa-Lyonnet, Anthony Swerdlow, Csilla I. Szabo, Rulla Tamimi, William Tapper, Manuel R. Teixeira, Soo-Hwang Teo, Mary B. Terry, Mads Thomassen, Deborah Thompson, Laima Tihomirova, Amanda E. Toland, Robert A. E. M. Tollenaar, Ian Tomlinson, Thérèse Truong, Helen Tsimiklis, Alex Teulé, Rosario Tumino, Nadine Tung, Clare Turnbull, Giski Ursin, Carolien H. M. van Deurzen, Elizabeth J. van Rensburg, Raymonda Varon-Mateeva, Zhaoming Wang, Shan Wang-Gohrke, Elisabete Weiderpass, Jeffrey N. Weitzel, Alice Whittemore, Hans Wildiers, Robert Winqvist, Xiaohong R. Yang, Drakoulis Yannoukakos, Song Yao, M Pilar Zamora, Wei Zheng, Per Hall, Peter Kraft, Celine Vachon, Susan Slager, Georgia Chenevix-Trench, Paul D. P. Pharoah, Alvaro A. N. Monteiro, Montserrat García-Closas, Douglas F. Easton, and Antonis C. Antoniou
Subjects: Science
Abstract: Oestrogen negative breast cancer is associated with a poor prognosis. In this study, the authors perform a meta-analysis of 11 breast cancer genome-wide association studies and identify four new loci associated with oestrogen negative breast cancer risk. These findings may aid in stratifying patients in the clinic.
Published: 2016
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19. The Spectrum of FANCM Protein Truncating Variants in European Breast Cancer Cases

Author: Gisella Figlioli, Anders Kvist, Emma Tham, Jana Soukupova, Petra Kleiblova, Taru A Muranen, Nadine Andrieu, Jacopo Azzollini, Judith Balmaña, Alicia Barroso, Javier Benítez, Birgitte Bertelsen, Ana Blanco, Bernardo Bonanni, Åke Borg, Joan Brunet, Daniele Calistri, Mariarosaria Calvello, Stepan Chvojka, Laura Cortesi, Esther Darder, Jesús Del Valle, Orland Diez, ENIGMA Consortium, Séverine Eon-Marchais, Florentia Fostira, GENESIS Study Collaborators, Francesca Gensini, Claude Houdayer, Marketa Janatova, Johanna I Kiiski, Irene Konstantopoulou, Katerina Kubelka-Sabit, Conxi Lázaro, Fabienne Lesueur, Siranoush Manoukian, Ruta Marcinkute, Ugnius Mickys, Virginie Moncoutier, SWE-BRCA Group, Aleksander Myszka, Tu Nguyen-Dumont, Finn Cilius Nielsen, Rimvydas Norvilas, Edith Olah, Ana Osorio, Laura Papi, Bernard Peissel, Ana Peixoto, Dijana Plaseska-Karanfilska, Timea Pócza, Maria Rossing, Vilius Rudaitis, Marta Santamariña, Catarina Santos, Snezhana Smichkoska, Melissa C Southey, Dominique Stoppa-Lyonnet, Manuel Teixeira, Therese Törngren, Angela Toss, Miguel Urioste, Ana Vega, Zdenka Vlckova, Drakoulis Yannoukakos, Valentina Zampiga, Zdenek Kleibl, Paolo Radice, Heli Nevanlinna, Hans Ehrencrona, Ramunas Janavicius, and Paolo Peterlongo
Subjects: breast cancer predisposition, breast cancer risk factors, fancm truncating variants, mutation spectrum, ptvs, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract: Germline protein truncating variants (PTVs) in the FANCM gene have been associated with a 2−4-fold increased breast cancer risk in case-control studies conducted in different European populations. However, the distribution and the frequency of FANCM PTVs in Europe have never been investigated. In the present study, we collected the data of 114 European female breast cancer cases with FANCM PTVs ascertained in 20 centers from 13 European countries. We identified 27 different FANCM PTVs. The p.Gln1701* PTV is the most common PTV in Northern Europe with a maximum frequency in Finland and a lower relative frequency in Southern Europe. On the contrary, p.Arg1931* seems to be the most common PTV in Southern Europe. We also showed that p.Arg658*, the third most common PTV, is more frequent in Central Europe, and p.Gln498Thrfs*7 is probably a founder variant from Lithuania. Of the 23 rare or unique FANCM PTVs, 15 have not been previously reported. We provide here the initial spectrum of FANCM PTVs in European breast cancer cases.
Published: 2020
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20. Asymptomatic Gastric Giant Polyp in a Boy with Peutz-Jeghers Syndrome Presented with Multiple Café Au Lait Traits

Author: Christos Plataras, Efstratios Christianakis, Florentia Fostira, George Bourikis, Maria Chorti, Dimitrios Bourikas, Nikolaos Fotopoulos, Konstantinos Damalas, and Khalil Eirekat
Subjects: Surgery, RD1-811
Abstract: We describe an asymptomatic case of PJS in a six-year-old boy with café au lait spots in several parts of his body, a large gastroduodenal polyp, two polyps near the ampulla of Vater, and another in the jejunum. This patient shows some unique aspects of PJS. No other such large gastric polyp in a Peutz-Jeghers child is reported in the literature. The large size of the gastric polyp with lack of symptoms is unusual and poses a unique challenge in terms of management and surgical resection.
Published: 2018
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21. Genetically Predicted Body Mass Index and Breast Cancer Risk: Mendelian Randomization Analyses of Data from 145,000 Women of European Descent.

Author: Yan Guo, Shaneda Warren Andersen, Xiao-Ou Shu, Kyriaki Michailidou, Manjeet K Bolla, Qin Wang, Montserrat Garcia-Closas, Roger L Milne, Marjanka K Schmidt, Jenny Chang-Claude, Allison Dunning, Stig E Bojesen, Habibul Ahsan, Kristiina Aittomäki, Irene L Andrulis, Hoda Anton-Culver, Volker Arndt, Matthias W Beckmann, Alicia Beeghly-Fadiel, Javier Benitez, Natalia V Bogdanova, Bernardo Bonanni, Anne-Lise Børresen-Dale, Judith Brand, Hiltrud Brauch, Hermann Brenner, Thomas Brüning, Barbara Burwinkel, Graham Casey, Georgia Chenevix-Trench, Fergus J Couch, Angela Cox, Simon S Cross, Kamila Czene, Peter Devilee, Thilo Dörk, Martine Dumont, Peter A Fasching, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Henrik Flyger, Florentia Fostira, Marilie Gammon, Graham G Giles, Pascal Guénel, Christopher A Haiman, Ute Hamann, Maartje J Hooning, John L Hopper, Anna Jakubowska, Farzana Jasmine, Mark Jenkins, Esther M John, Nichola Johnson, Michael E Jones, Maria Kabisch, Muhammad Kibriya, Julia A Knight, Linetta B Koppert, Veli-Matti Kosma, Vessela Kristensen, Loic Le Marchand, Eunjung Lee, Jingmei Li, Annika Lindblom, Robert Luben, Jan Lubinski, Kathi E Malone, Arto Mannermaa, Sara Margolin, Frederik Marme, Catriona McLean, Hanne Meijers-Heijboer, Alfons Meindl, Susan L Neuhausen, Heli Nevanlinna, Patrick Neven, Janet E Olson, Jose I A Perez, Barbara Perkins, Paolo Peterlongo, Kelly-Anne Phillips, Katri Pylkäs, Anja Rudolph, Regina Santella, Elinor J Sawyer, Rita K Schmutzler, Caroline Seynaeve, Mitul Shah, Martha J Shrubsole, Melissa C Southey, Anthony J Swerdlow, Amanda E Toland, Ian Tomlinson, Diana Torres, Thérèse Truong, Giske Ursin, Rob B Van Der Luijt, Senno Verhoef, Alice S Whittemore, Robert Winqvist, Hui Zhao, Shilin Zhao, Per Hall, Jacques Simard, Peter Kraft, Paul Pharoah, David Hunter, Douglas F Easton, and Wei Zheng
Subjects: Medicine
Abstract: BackgroundObservational epidemiological studies have shown that high body mass index (BMI) is associated with a reduced risk of breast cancer in premenopausal women but an increased risk in postmenopausal women. It is unclear whether this association is mediated through shared genetic or environmental factors.MethodsWe applied Mendelian randomization to evaluate the association between BMI and risk of breast cancer occurrence using data from two large breast cancer consortia. We created a weighted BMI genetic score comprising 84 BMI-associated genetic variants to predicted BMI. We evaluated genetically predicted BMI in association with breast cancer risk using individual-level data from the Breast Cancer Association Consortium (BCAC) (cases = 46,325, controls = 42,482). We further evaluated the association between genetically predicted BMI and breast cancer risk using summary statistics from 16,003 cases and 41,335 controls from the Discovery, Biology, and Risk of Inherited Variants in Breast Cancer (DRIVE) Project. Because most studies measured BMI after cancer diagnosis, we could not conduct a parallel analysis to adequately evaluate the association of measured BMI with breast cancer risk prospectively.ResultsIn the BCAC data, genetically predicted BMI was found to be inversely associated with breast cancer risk (odds ratio [OR] = 0.65 per 5 kg/m2 increase, 95% confidence interval [CI]: 0.56-0.75, p = 3.32 × 10-10). The associations were similar for both premenopausal (OR = 0.44, 95% CI:0.31-0.62, p = 9.91 × 10-8) and postmenopausal breast cancer (OR = 0.57, 95% CI: 0.46-0.71, p = 1.88 × 10-8). This association was replicated in the data from the DRIVE consortium (OR = 0.72, 95% CI: 0.60-0.84, p = 1.64 × 10-7). Single marker analyses identified 17 of the 84 BMI-associated single nucleotide polymorphisms (SNPs) in association with breast cancer risk at p ConclusionsBMI predicted by genome-wide association studies (GWAS)-identified variants is inversely associated with the risk of both pre- and postmenopausal breast cancer. The reduced risk of postmenopausal breast cancer associated with genetically predicted BMI observed in this study differs from the positive association reported from studies using measured adult BMI. Understanding the reasons for this discrepancy may reveal insights into the complex relationship of genetic determinants of body weight in the etiology of breast cancer.
Published: 2016
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22. Fine-Scale Mapping at 9p22.2 Identifies Candidate Causal Variants That Modify Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers.

Author: Elena Vigorito, Karoline B Kuchenbaecker, Jonathan Beesley, Julian Adlard, Bjarni A Agnarsson, Irene L Andrulis, Banu K Arun, Laure Barjhoux, Muriel Belotti, Javier Benitez, Andreas Berger, Anders Bojesen, Bernardo Bonanni, Carole Brewer, Trinidad Caldes, Maria A Caligo, Ian Campbell, Salina B Chan, Kathleen B M Claes, David E Cohn, Jackie Cook, Mary B Daly, Francesca Damiola, Rosemarie Davidson, Antoine de Pauw, Capucine Delnatte, Orland Diez, Susan M Domchek, Martine Dumont, Katarzyna Durda, Bernd Dworniczak, Douglas F Easton, Diana Eccles, Christina Edwinsdotter Ardnor, Ros Eeles, Bent Ejlertsen, Steve Ellis, D Gareth Evans, Lidia Feliubadalo, Florentia Fostira, William D Foulkes, Eitan Friedman, Debra Frost, Pragna Gaddam, Patricia A Ganz, Judy Garber, Vanesa Garcia-Barberan, Marion Gauthier-Villars, Andrea Gehrig, Anne-Marie Gerdes, Sophie Giraud, Andrew K Godwin, David E Goldgar, Christopher R Hake, Thomas V O Hansen, Sue Healey, Shirley Hodgson, Frans B L Hogervorst, Claude Houdayer, Peter J Hulick, Evgeny N Imyanitov, Claudine Isaacs, Louise Izatt, Angel Izquierdo, Lauren Jacobs, Anna Jakubowska, Ramunas Janavicius, Katarzyna Jaworska-Bieniek, Uffe Birk Jensen, Esther M John, Joseph Vijai, Beth Y Karlan, Karin Kast, KConFab Investigators, Sofia Khan, Ava Kwong, Yael Laitman, Jenny Lester, Fabienne Lesueur, Annelie Liljegren, Jan Lubinski, Phuong L Mai, Siranoush Manoukian, Sylvie Mazoyer, Alfons Meindl, Arjen R Mensenkamp, Marco Montagna, Katherine L Nathanson, Susan L Neuhausen, Heli Nevanlinna, Dieter Niederacher, Edith Olah, Olufunmilayo I Olopade, Kai-Ren Ong, Ana Osorio, Sue Kyung Park, Ylva Paulsson-Karlsson, Inge Sokilde Pedersen, Bernard Peissel, Paolo Peterlongo, Georg Pfeiler, Catherine M Phelan, Marion Piedmonte, Bruce Poppe, Miquel Angel Pujana, Paolo Radice, Gad Rennert, Gustavo C Rodriguez, Matti A Rookus, Eric A Ross, Rita Katharina Schmutzler, Jacques Simard, Christian F Singer, Thomas P Slavin, Penny Soucy, Melissa Southey, Doris Steinemann, Dominique Stoppa-Lyonnet, Grzegorz Sukiennicki, Christian Sutter, Csilla I Szabo, Muy-Kheng Tea, Manuel R Teixeira, Soo-Hwang Teo, Mary Beth Terry, Mads Thomassen, Maria Grazia Tibiletti, Laima Tihomirova, Silvia Tognazzo, Elizabeth J van Rensburg, Liliana Varesco, Raymonda Varon-Mateeva, Athanassios Vratimos, Jeffrey N Weitzel, Lesley McGuffog, Judy Kirk, Amanda Ewart Toland, Ute Hamann, Noralane Lindor, Susan J Ramus, Mark H Greene, Fergus J Couch, Kenneth Offit, Paul D P Pharoah, Georgia Chenevix-Trench, and Antonis C Antoniou
Subjects: Medicine, Science
Abstract: Population-based genome wide association studies have identified a locus at 9p22.2 associated with ovarian cancer risk, which also modifies ovarian cancer risk in BRCA1 and BRCA2 mutation carriers. We conducted fine-scale mapping at 9p22.2 to identify potential causal variants in BRCA1 and BRCA2 mutation carriers. Genotype data were available for 15,252 (2,462 ovarian cancer cases) BRCA1 and 8,211 (631 ovarian cancer cases) BRCA2 mutation carriers. Following genotype imputation, ovarian cancer associations were assessed for 4,873 and 5,020 SNPs in BRCA1 and BRCA 2 mutation carriers respectively, within a retrospective cohort analytical framework. In BRCA1 mutation carriers one set of eight correlated candidate causal variants for ovarian cancer risk modification was identified (top SNP rs10124837, HR: 0.73, 95%CI: 0.68 to 0.79, p-value 2× 10-16). These variants were located up to 20 kb upstream of BNC2. In BRCA2 mutation carriers one region, up to 45 kb upstream of BNC2, and containing 100 correlated SNPs was identified as candidate causal (top SNP rs62543585, HR: 0.69, 95%CI: 0.59 to 0.80, p-value 1.0 × 10-6). The candidate causal in BRCA1 mutation carriers did not include the strongest associated variant at this locus in the general population. In sum, we identified a set of candidate causal variants in a region that encompasses the BNC2 transcription start site. The ovarian cancer association at 9p22.2 may be mediated by different variants in BRCA1 mutation carriers and in the general population. Thus, potentially different mechanisms may underlie ovarian cancer risk for mutation carriers and the general population.
Published: 2016
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23. Assessing associations between the AURKA-HMMR-TPX2-TUBG1 functional module and breast cancer risk in BRCA1/2 mutation carriers.

Author: Ignacio Blanco, Karoline Kuchenbaecker, Daniel Cuadras, Xianshu Wang, Daniel Barrowdale, Gorka Ruiz de Garibay, Pablo Librado, Alejandro Sánchez-Gracia, Julio Rozas, Núria Bonifaci, Lesley McGuffog, Vernon S Pankratz, Abul Islam, Francesca Mateo, Antoni Berenguer, Anna Petit, Isabel Català, Joan Brunet, Lidia Feliubadaló, Eva Tornero, Javier Benítez, Ana Osorio, Teresa Ramón y Cajal, Heli Nevanlinna, Kristiina Aittomäki, Banu K Arun, Amanda E Toland, Beth Y Karlan, Christine Walsh, Jenny Lester, Mark H Greene, Phuong L Mai, Robert L Nussbaum, Irene L Andrulis, Susan M Domchek, Katherine L Nathanson, Timothy R Rebbeck, Rosa B Barkardottir, Anna Jakubowska, Jan Lubinski, Katarzyna Durda, Katarzyna Jaworska-Bieniek, Kathleen Claes, Tom Van Maerken, Orland Díez, Thomas V Hansen, Lars Jønson, Anne-Marie Gerdes, Bent Ejlertsen, Miguel de la Hoya, Trinidad Caldés, Alison M Dunning, Clare Oliver, Elena Fineberg, Margaret Cook, Susan Peock, Emma McCann, Alex Murray, Chris Jacobs, Gabriella Pichert, Fiona Lalloo, Carol Chu, Huw Dorkins, Joan Paterson, Kai-Ren Ong, Manuel R Teixeira, Teixeira, Frans B L Hogervorst, Annemarie H van der Hout, Caroline Seynaeve, Rob B van der Luijt, Marjolijn J L Ligtenberg, Peter Devilee, Juul T Wijnen, Matti A Rookus, Hanne E J Meijers-Heijboer, Marinus J Blok, Ans M W van den Ouweland, Cora M Aalfs, Gustavo C Rodriguez, Kelly-Anne A Phillips, Marion Piedmonte, Stacy R Nerenstone, Victoria L Bae-Jump, David M O'Malley, Elena S Ratner, Rita K Schmutzler, Barbara Wappenschmidt, Kerstin Rhiem, Christoph Engel, Alfons Meindl, Nina Ditsch, Norbert Arnold, Hansjoerg J Plendl, Dieter Niederacher, Christian Sutter, Shan Wang-Gohrke, Doris Steinemann, Sabine Preisler-Adams, Karin Kast, Raymonda Varon-Mateeva, Andrea Gehrig, Anders Bojesen, Inge Sokilde Pedersen, Lone Sunde, Uffe Birk Jensen, Mads Thomassen, Torben A Kruse, Lenka Foretova, Paolo Peterlongo, Loris Bernard, Bernard Peissel, Giulietta Scuvera, Siranoush Manoukian, Paolo Radice, Laura Ottini, Marco Montagna, Simona Agata, Christine Maugard, Jacques Simard, Penny Soucy, Andreas Berger, Anneliese Fink-Retter, Christian F Singer, Christine Rappaport, Daphne Geschwantler-Kaulich, Muy-Kheng Tea, Georg Pfeiler, BCFR, Esther M John, Alex Miron, Susan L Neuhausen, Mary Beth Terry, Wendy K Chung, Mary B Daly, David E Goldgar, Ramunas Janavicius, Cecilia M Dorfling, Elisabeth J van Rensburg, Florentia Fostira, Irene Konstantopoulou, Judy Garber, Andrew K Godwin, Edith Olah, Steven A Narod, Gad Rennert, Shani Shimon Paluch, Yael Laitman, Eitan Friedman, SWE-BRCA, Annelie Liljegren, Johanna Rantala, Marie Stenmark-Askmalm, Niklas Loman, Evgeny N Imyanitov, Ute Hamann, kConFab Investigators, Amanda B Spurdle, Sue Healey, Jeffrey N Weitzel, Josef Herzog, David Margileth, Chiara Gorrini, Manel Esteller, Antonio Gómez, Sergi Sayols, Enrique Vidal, Holger Heyn, GEMO, Dominique Stoppa-Lyonnet, Melanie Léoné, Laure Barjhoux, Marion Fassy-Colcombet, Antoine de Pauw, Christine Lasset, Sandra Fert Ferrer, Laurent Castera, Pascaline Berthet, François Cornelis, Yves-Jean Bignon, Francesca Damiola, Sylvie Mazoyer, Olga M Sinilnikova, Christopher A Maxwell, Joseph Vijai, Mark Robson, Noah Kauff, Marina J Corines, Danylko Villano, Julie Cunningham, Adam Lee, Noralane Lindor, Conxi Lázaro, Douglas F Easton, Kenneth Offit, Georgia Chenevix-Trench, Fergus J Couch, Antonis C Antoniou, and Miguel Angel Pujana
Subjects: Medicine, Science
Abstract: While interplay between BRCA1 and AURKA-RHAMM-TPX2-TUBG1 regulates mammary epithelial polarization, common genetic variation in HMMR (gene product RHAMM) may be associated with risk of breast cancer in BRCA1 mutation carriers. Following on these observations, we further assessed the link between the AURKA-HMMR-TPX2-TUBG1 functional module and risk of breast cancer in BRCA1 or BRCA2 mutation carriers. Forty-one single nucleotide polymorphisms (SNPs) were genotyped in 15,252 BRCA1 and 8,211 BRCA2 mutation carriers and subsequently analyzed using a retrospective likelihood approach. The association of HMMR rs299290 with breast cancer risk in BRCA1 mutation carriers was confirmed: per-allele hazard ratio (HR) = 1.10, 95% confidence interval (CI) 1.04-1.15, p = 1.9 x 10(-4) (false discovery rate (FDR)-adjusted p = 0.043). Variation in CSTF1, located next to AURKA, was also found to be associated with breast cancer risk in BRCA2 mutation carriers: rs2426618 per-allele HR = 1.10, 95% CI 1.03-1.16, p = 0.005 (FDR-adjusted p = 0.045). Assessment of pairwise interactions provided suggestions (FDR-adjusted pinteraction values > 0.05) for deviations from the multiplicative model for rs299290 and CSTF1 rs6064391, and rs299290 and TUBG1 rs11649877 in both BRCA1 and BRCA2 mutation carriers. Following these suggestions, the expression of HMMR and AURKA or TUBG1 in sporadic breast tumors was found to potentially interact, influencing patients' survival. Together, the results of this study support the hypothesis of a causative link between altered function of AURKA-HMMR-TPX2-TUBG1 and breast carcinogenesis in BRCA1/2 mutation carriers.
Published: 2015
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24. A Paternally Inherited BRCA1 Mutation Associated with an Unusual Aggressive Clinical Phenotype

Author: Florentia Fostira, Nikolaos Tsoukalas, Irene Konstantopoulou, Vassilios Georgoulias, Charalambos Christophyllakis, and Drakoulis Yannoukakos
Subjects: Genetics, QH426-470
Abstract: This report highlights the necessity of genetic testing, at least for BRCA1 mutations, of young females diagnosed with triple negative breast cancer, even in the absence of or limited family history. A 34-year-old female with a locally advanced, triple negative tumour, which perforated the skin, is described. At the time of diagnosis, the patient had already multiple lung metastases and although chemotherapy was started immediately, she died with rapid systemic disease progression. The patient was found to carry the BRCA1 p.E1060X mutation, which is located on exon 11 of the gene. The high penetrance of BRCA1 gene is not represented in the patient’s family, since the mutation was paternally inherited. It is evident that females belonging to small families, along with paternal inheritance of pathogenic BRCA mutations that predispose for breast cancer, in most cases will probably be genetically tested only after being diagnosed with cancer.
Published: 2014
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25. Prevalence of BRCA1 mutations in familial and sporadic greek ovarian cancer cases.

Author: Alexandra V Stavropoulou, Florentia Fostira, Maroulio Pertesi, Marianthi Tsitlaidou, Gerassimos E Voutsinas, Olga Triantafyllidou, Aristotelis Bamias, Meletios A Dimopoulos, Eleni Timotheadou, Dimitrios Pectasides, Christos Christodoulou, George Klouvas, Christos Papadimitriou, Thomas Makatsoris, George Pentheroudakis, Gerasimos Aravantinos, Vassilis Karydakis, Drakoulis Yannoukakos, George Fountzilas, and Irene Konstantopoulou
Subjects: Medicine, Science
Abstract: Germline mutations in the BRCA1 and BRCA2 genes contribute to approximately 18% of hereditary ovarian cancers conferring an estimated lifetime risk from 15% to 50%. A variable incidence of mutations has been reported for these genes in ovarian cancer cases from different populations. In Greece, six mutations in BRCA1 account for 63% of all mutations detected in both BRCA1 and BRCA2 genes. This study aimed to determine the prevalence of BRCA1 mutations in a Greek cohort of 106 familial ovarian cancer patients that had strong family history or metachronous breast cancer and 592 sporadic ovarian cancer cases. All 698 patients were screened for the six recurrent Greek mutations (including founder mutations c.5266dupC, p.G1738R and the three large deletions of exon 20, exons 23-24 and exon 24). In familial cases, the BRCA1 gene was consequently screened for exons 5, 11, 12, 20, 21, 22, 23, 24. A deleterious BRCA1 mutation was found in 43/106 (40.6%) of familial cancer cases and in 27/592 (4.6%) of sporadic cases. The variant of unknown clinical significance p.V1833M was identified in 9/698 patients (1.3%). The majority of BRCA1 carriers (71.2%) presented a high-grade serous phenotype. Identifying a mutation in the BRCA1 gene among breast and/or ovarian cancer families is important, as it enables carriers to take preventive measures. All ovarian cancer patients with a serous phenotype should be considered for genetic testing. Further studies are warranted to determine the prevalence of mutations in the rest of the BRCA1 gene, in the BRCA2 gene, and other novel predisposing genes for breast and ovarian cancer.
Published: 2013
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26. Correction: Prevalence of Mutations in Familial and Sporadic Greek Ovarian Cancer Cases.

Author: Alexandra V. Stavropoulou, Florentia Fostira, Maroulio Pertesi, Marianthi Tsitlaidou, Gerassimos E. Voutsinas, Olga Triantafyllidou, Aristotelis Bamias, Meletios A. Dimopoulos, Eleni Timotheadou, Dimitrios Pectasides, Christos Christodoulou, George Klouvas, Christos Papadimitriou, Thomas Makatsoris, George Pentheroudakis, Gerasimos Aravantinos, Vassilis Karydakis, Drakoulis Yannoukakos, George Fountzilas, and Irene Konstantopoulou
Subjects: Medicine, Science
Published: 2013
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27. Identification of a Novel IQCE Large Deletion through Copy Number Variant Analysis from Whole-Exome Sequencing Data of a Patient with Postaxial Polydactyly Type A7

Author: Faidon-Nikolaos Tilemis, Nikolaos M. Marinakis, Konstantina Kosma, Florentia Fostira, and Joanne Traeger-Synodinos
Subjects: Genetics, Genetics (clinical)
Abstract: Introduction: Non-syndromic polydactyly has been associated with pathogenic variants in 11 genes until today, including IQCE gene. More precisely, loss-of-function of IQCE is associated with the autosomal recessive disorder postaxial polydactyly type A7 (PAPA7, MIM #617642). Case Presentation: A 3-year-old female patient was referred to our genetics department with postaxial polydactyly, syndactyly, brachydactyly, and hypoplastic teeth. Through whole-exome sequencing (WES), a pathogenic IQCE variant was identified (c.895_904del) in the homozygous state, which adequately explained the disease phenotype of our patient. However, copy number variant (CNV) analysis from WES data, using ExomeDepth, revealed a novel, likely pathogenic large deletion involving IQCE genomic regions (DEL:chr7:2606751_2641098) encompassing exons 2–18 of the gene. Conclusion: IQCE gene codes for a 695-amino acid protein located at the base of the primary cilia that positively regulates the Hedgehog signaling pathway. This case report represents the first description of a large deletion in IQCE and indicates that implementation of ExomeDepth in routine WES analysis can contribute valuable information toward elucidating the correct etiology of rare genetic diseases, increasing the diagnostic yield, and minimizing the need for additional tests.
Published: 2023

28. Lung cancer as a predominant feature in a patient with <scp>Peutz–Jeghers</scp> syndrome: Case report

Author: Florentia Fostira, Elena Fountzilas, Kyriaki Papadopoulou, Theodoros Karaiskos, Ourania Mpatsi, Nikoleta Pastelli, Giannis Mountzios, Irene Konstantopoulou, and George Fountzilas
Subjects: Pulmonary and Respiratory Medicine, Oncology, General Medicine
Published: 2022

29. Germline MBD4 deficiency causes a multi-tumor predisposition syndrome

Author: Claire Palles, Hannah D. West, Edward Chew, Sara Galavotti, Christoffer Flensburg, Judith E. Grolleman, Erik A.M. Jansen, Helen Curley, Laura Chegwidden, Edward H. Arbe-Barnes, Nicola Lander, Rebekah Truscott, Judith Pagan, Ashish Bajel, Kitty Sherwood, Lynn Martin, Huw Thomas, Demetra Georgiou, Florentia Fostira, Yael Goldberg, David J. Adams, Simone A.M. van der Biezen, Michael Christie, Mark Clendenning, Laura E. Thomas, Constantinos Deltas, Aleksandar J. Dimovski, Dagmara Dymerska, Jan Lubinski, Khalid Mahmood, Rachel S. van der Post, Mathijs Sanders, Jürgen Weitz, Jenny C. Taylor, Clare Turnbull, Lilian Vreede, Tom van Wezel, Celina Whalley, Claudia Arnedo-Pac, Giulio Caravagna, William Cross, Daniel Chubb, Anna Frangou, Andreas J. Gruber, Ben Kinnersley, Boris Noyvert, David Church, Trevor Graham, Richard Houlston, Nuria Lopez-Bigas, Andrea Sottoriva, David Wedge, Mark A. Jenkins, Roland P. Kuiper, Andrew W. Roberts, Jeremy P. Cheadle, Marjolijn J.L. Ligtenberg, Nicoline Hoogerbrugge, Viktor H. Koelzer, Andres Dacal Rivas, Ingrid M. Winship, Clara Ruiz Ponte, Daniel D. Buchanan, Derek G. Power, Andrew Green, Ian P.M. Tomlinson, Julian R. Sampson, Ian J. Majewski, Richarda M. de Voer, Hematology, Palles, Claire, West, Hannah D, Chew, Edward, Galavotti, Sara, Flensburg, Christoffer, Grolleman, Judith E, Jansen, Erik A M, Curley, Helen, Chegwidden, Laura, Arbe-Barnes, Edward H, Lander, Nicola, Truscott, Rebekah, Pagan, Judith, Bajel, Ashish, Sherwood, Kitty, Martin, Lynn, Thomas, Huw, Georgiou, Demetra, Fostira, Florentia, Goldberg, Yael, Adams, David J, van der Biezen, Simone A M, Christie, Michael, Clendenning, Mark, Thomas, Laura E, Deltas, Constantino, Dimovski, Aleksandar J, Dymerska, Dagmara, Lubinski, Jan, Mahmood, Khalid, van der Post, Rachel S, Sanders, Mathij, Weitz, Jürgen, Taylor, Jenny C, Turnbull, Clare, Vreede, Lilian, van Wezel, Tom, Whalley, Celina, Arnedo-Pac, Claudia, Caravagna, Giulio, Cross, William, Chubb, Daniel, Frangou, Anna, Gruber, Andreas J, Kinnersley, Ben, Noyvert, Bori, Church, David, Graham, Trevor, Houlston, Richard, Lopez-Bigas, Nuria, Sottoriva, Andrea, Wedge, David, Jenkins, Mark A, Kuiper, Roland P, Roberts, Andrew W, Cheadle, Jeremy P, Ligtenberg, Marjolijn J L, Hoogerbrugge, Nicoline, Koelzer, Viktor H, Rivas, Andres Dacal, Winship, Ingrid M, Ponte, Clara Ruiz, Buchanan, Daniel D, Power, Derek G, Green, Andrew, Tomlinson, Ian P M, Sampson, Julian R, Majewski, Ian J, and de Voer, Richarda M
Subjects: Uveal Neoplasms, Endodeoxyribonucleases, 5′-methylcytosine deamination, polyposis, colorectal cancer, Colorectal Neoplasm, mutational signature, Germ Cell, Endodeoxyribonuclease, Germ Cells, Adenomatous Polyposis Coli, ddc:570, Tumours of the digestive tract Radboud Institute for Molecular Life Sciences [Radboudumc 14], mutator phenotype, Genetics, Humans, Genetic Predisposition to Disease, Germ-Line Mutation, Colorectal Neoplasms, polyposi, Genetics (clinical), Human
Abstract: Contains fulltext : 251996.pdf (Publisher’s version ) (Open Access) We report an autosomal recessive, multi-organ tumor predisposition syndrome, caused by bi-allelic loss-of-function germline variants in the base excision repair (BER) gene MBD4. We identified five individuals with bi-allelic MBD4 variants within four families and these individuals had a personal and/or family history of adenomatous colorectal polyposis, acute myeloid leukemia, and uveal melanoma. MBD4 encodes a glycosylase involved in repair of G:T mismatches resulting from deamination of 5'-methylcytosine. The colorectal adenomas from MBD4-deficient individuals showed a mutator phenotype attributable to mutational signature SBS1, consistent with the function of MBD4. MBD4-deficient polyps harbored somatic mutations in similar driver genes to sporadic colorectal tumors, although AMER1 mutations were more common and KRAS mutations less frequent. Our findings expand the role of BER deficiencies in tumor predisposition. Inclusion of MBD4 in genetic testing for polyposis and multi-tumor phenotypes is warranted to improve disease management.
Published: 2022

30. Supplementary Table 2 from Candidate Genetic Modifiers for Breast and Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers

Author: Eitan Friedman, Antonis C. Antoniou, Georgia Chenevix-Trench, Paul D.P. Pharoah, Andrew Lee, Sue Healey, Daniel Barrowdale, Lesley McGuffog, Karoline B. Kuchenbaecker, Åke Borg, Marie Stenmark Askmalm, Hans Ehrencrona, Anna von Wachenfeldt, Johanna Rantala, Yael Laitman, Uffe Birk Jensen, Mads Thomassen, Inge Sokilde Pedersen, Anders Bojesen, Amanda Ewart Toland, Irene L. Andrulis, Sandrine Tchatchou, Gord Glendon, Anna Marie Mulligan, Gad Rennert, Phuong L. Mai, Mark H. Greene, Catherine M. Phelan, Muy-Kheng M. Tea, Georg Pfeiler, Daphne Geschwantler Kaulich, Christine Rappaport, Christian F. Singer, Andreas Berger, Vijai Joseph, Liying Zhang, Mark E. Robson, Lauren Jacobs, Marina Corines, Kenneth Offit, Csilla I. Szabo, Xianshu Wang, Noralane M. Lindor, Fergus J. Couch, Curtis Olswold, Manuel R. Teixeira, Jocelyne Chiquette, Adalgeir Arason, Grzegorz Sukiennicki, Katarzyna Jaworska-Bieniek, Katarzyna Durda, Jacek Gronwald, Cezary Cybulski, Lidia Feliubadalo, Joan Brunet, Conxi Lazaro, Ignacio Blanco, Orland Diez, Edith Olah, J. Margriet Collée, Helena C. van Doorn, Margreet G.E.M. Ausems, Nicoline Hoogerbrugge, Maaike P.G. Vreeswijk, Annemarie H. van der Hout, Hanne E.J. Meijers-Heijboer, Theo A.M. van Os, Kristiina Aittomäki, Heli Nevanlinna, Pedro Perez Segura, Miguel de la Hoya, Larry J. Copeland, Gustavo C. Rodriguez, Michael L. Friedlander, Marion Piedmonte, Muriel Belotti, Sylvie Mazoyer, Pascal Pujol, Olivier Caron, Olga M. Sinilnikova, Nadia Boutry-Kryza, Lisa Golmard, Laurence Venat-Bouvet, Laure Barjhoux, Isabelle Coupier, Francesca Damiola, Dominique Stoppa-Lyonnet, Claude Houdayer, Capucine Delnatte, Bruno Buecher, Brigitte Bressac-de Paillerets, Shan Wang-Gohrke, Barbara Wappenschmidt, Raymonda Varon-Mateeva, Norbert Arnold, Nina Ditsch, Kerstin Rhiem, Karin Kast, Hansjoerg Plendl, Doris Steinemann, Dieter Niederacher, Christoph Engel, Christian Sutter, Andrea Gehrig, Alfons Meindl, Tom Van Maerken, Kathleen Claes, Andrew K. Godwin, Trevor Cole, Steve Ellis, Shirley V. Hodgson, Rosemarie Davidson, Radka Platte, Patrick J. Morrison, Mary E. Porteous, Mark T. Rogers, M. John Kennedy, Lucy E. Side, Louise Izatt, Lisa Walker, Julian Barwell, Julian Adlard, Marc Tischkowitz, Jackie Cook, Angela Brady, Diana Eccles, Debra Frost, D. Gareth R. Evans, Claire Foo, Carole Brewer, Alan Donaldson, Judy E. Garber, Florentia Fostira, Athanassios Vratimos, Paolo Radice, Maria Grazia Tibiletti, Aline Martayan, Laura Papi, Giuseppe Giannini, Alessandra Viel, Stefano Fortuzzi, Frederique Mariette, Filomena Ficarazzi, Monica Barile, Giulietta Scuvera, Daniela Zaffaroni, Bernard Peissel, Siranoush Manoukian, Jeffrey N. Weitzel, Kathleen R. Blazer, Edye E. Conway, Javier Benitez, Cristina Martínez-Bouzas, Ana Osorio, Lars Jønson, Bent Ejlertsen, Anne-Marie Gerdes, Thomas V.O. Hansen, Susan L. Neuhausen, Yuan Chun Ding, Elizabeth J. van Rensburg, Cecilia M. Dorfling, Ramunas Janavicius, Saundra S. Buys, David E. Goldgar, Melissa C. Southey, Alex Miron, Wendy K. Chung, Jenny Lester, Sandra Orsulic, Beth Y. Karlan, Banu K. Arun, Timothy R. Rebbeck, Susan M. Domchek, Katherine L. Nathanson, Robert L. Nussbaum, Olufunmilayo I. Olopade, Encarna B. Gómez Garcia, Anna Jakubowska, Jan Lubinski, Laura Matricardi, Marco Montagna, Ana-Teresa Maia, Felicity Lose, Logan C. Walker, Amanda B. Spurdle, Frederieke H. van der Baan, Marjanka K. Schmidt, Matti A. Rookus, Bowang Chen, Stefan Wilkening, Ute Hamann, Douglas F. Easton, Rosalind A. Eeles, Penny Soucy, Jacques Simard, Rita K. Schmutzler, Anja Rudolph, Kirsten B. Moysich, Jenny Chang-Claude, and Paolo Peterlongo
Abstract: Supplementary Table 2. Results of the statistical analyses in BRCA mutation carriers.
Published: 2023

31. Supplementary Table 1 from Candidate Genetic Modifiers for Breast and Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers

Author: Eitan Friedman, Antonis C. Antoniou, Georgia Chenevix-Trench, Paul D.P. Pharoah, Andrew Lee, Sue Healey, Daniel Barrowdale, Lesley McGuffog, Karoline B. Kuchenbaecker, Åke Borg, Marie Stenmark Askmalm, Hans Ehrencrona, Anna von Wachenfeldt, Johanna Rantala, Yael Laitman, Uffe Birk Jensen, Mads Thomassen, Inge Sokilde Pedersen, Anders Bojesen, Amanda Ewart Toland, Irene L. Andrulis, Sandrine Tchatchou, Gord Glendon, Anna Marie Mulligan, Gad Rennert, Phuong L. Mai, Mark H. Greene, Catherine M. Phelan, Muy-Kheng M. Tea, Georg Pfeiler, Daphne Geschwantler Kaulich, Christine Rappaport, Christian F. Singer, Andreas Berger, Vijai Joseph, Liying Zhang, Mark E. Robson, Lauren Jacobs, Marina Corines, Kenneth Offit, Csilla I. Szabo, Xianshu Wang, Noralane M. Lindor, Fergus J. Couch, Curtis Olswold, Manuel R. Teixeira, Jocelyne Chiquette, Adalgeir Arason, Grzegorz Sukiennicki, Katarzyna Jaworska-Bieniek, Katarzyna Durda, Jacek Gronwald, Cezary Cybulski, Lidia Feliubadalo, Joan Brunet, Conxi Lazaro, Ignacio Blanco, Orland Diez, Edith Olah, J. Margriet Collée, Helena C. van Doorn, Margreet G.E.M. Ausems, Nicoline Hoogerbrugge, Maaike P.G. Vreeswijk, Annemarie H. van der Hout, Hanne E.J. Meijers-Heijboer, Theo A.M. van Os, Kristiina Aittomäki, Heli Nevanlinna, Pedro Perez Segura, Miguel de la Hoya, Larry J. Copeland, Gustavo C. Rodriguez, Michael L. Friedlander, Marion Piedmonte, Muriel Belotti, Sylvie Mazoyer, Pascal Pujol, Olivier Caron, Olga M. Sinilnikova, Nadia Boutry-Kryza, Lisa Golmard, Laurence Venat-Bouvet, Laure Barjhoux, Isabelle Coupier, Francesca Damiola, Dominique Stoppa-Lyonnet, Claude Houdayer, Capucine Delnatte, Bruno Buecher, Brigitte Bressac-de Paillerets, Shan Wang-Gohrke, Barbara Wappenschmidt, Raymonda Varon-Mateeva, Norbert Arnold, Nina Ditsch, Kerstin Rhiem, Karin Kast, Hansjoerg Plendl, Doris Steinemann, Dieter Niederacher, Christoph Engel, Christian Sutter, Andrea Gehrig, Alfons Meindl, Tom Van Maerken, Kathleen Claes, Andrew K. Godwin, Trevor Cole, Steve Ellis, Shirley V. Hodgson, Rosemarie Davidson, Radka Platte, Patrick J. Morrison, Mary E. Porteous, Mark T. Rogers, M. John Kennedy, Lucy E. Side, Louise Izatt, Lisa Walker, Julian Barwell, Julian Adlard, Marc Tischkowitz, Jackie Cook, Angela Brady, Diana Eccles, Debra Frost, D. Gareth R. Evans, Claire Foo, Carole Brewer, Alan Donaldson, Judy E. Garber, Florentia Fostira, Athanassios Vratimos, Paolo Radice, Maria Grazia Tibiletti, Aline Martayan, Laura Papi, Giuseppe Giannini, Alessandra Viel, Stefano Fortuzzi, Frederique Mariette, Filomena Ficarazzi, Monica Barile, Giulietta Scuvera, Daniela Zaffaroni, Bernard Peissel, Siranoush Manoukian, Jeffrey N. Weitzel, Kathleen R. Blazer, Edye E. Conway, Javier Benitez, Cristina Martínez-Bouzas, Ana Osorio, Lars Jønson, Bent Ejlertsen, Anne-Marie Gerdes, Thomas V.O. Hansen, Susan L. Neuhausen, Yuan Chun Ding, Elizabeth J. van Rensburg, Cecilia M. Dorfling, Ramunas Janavicius, Saundra S. Buys, David E. Goldgar, Melissa C. Southey, Alex Miron, Wendy K. Chung, Jenny Lester, Sandra Orsulic, Beth Y. Karlan, Banu K. Arun, Timothy R. Rebbeck, Susan M. Domchek, Katherine L. Nathanson, Robert L. Nussbaum, Olufunmilayo I. Olopade, Encarna B. Gómez Garcia, Anna Jakubowska, Jan Lubinski, Laura Matricardi, Marco Montagna, Ana-Teresa Maia, Felicity Lose, Logan C. Walker, Amanda B. Spurdle, Frederieke H. van der Baan, Marjanka K. Schmidt, Matti A. Rookus, Bowang Chen, Stefan Wilkening, Ute Hamann, Douglas F. Easton, Rosalind A. Eeles, Penny Soucy, Jacques Simard, Rita K. Schmutzler, Anja Rudolph, Kirsten B. Moysich, Jenny Chang-Claude, and Paolo Peterlongo
Abstract: Supplementary Table 1. The 3,248 SNPs included in the study
Published: 2023

32. Supplementary Table 1 from Fine-Scale Mapping of the 4q24 Locus Identifies Two Independent Loci Associated with Breast Cancer Risk

Author: Wei Zheng, Douglas F. Easton, Alison M. Dunning, Georgia Chenevix-Trench, Jacques Simard, Paul D.P. Pharoah, Per Hall, Ying Zheng, M. Pilar Zamora, Cheng Har Yip, Anna Wu, Robert Winqvist, Wanqing Wen, Ans van den Ouweland, Chiu-chen Tseng, Thérèse Truong, Ian P.M. Tomlinson, Robert A.E.M. Tollenaar, Amanda Ewart Toland, Bernard Thienpont, Soo Hwang Teo, Anthony Swerdlow, Melissa C. Southey, Martha J. Shrubsole, Jiajun Shi, Chen-Yang Shen, Rita K. Schmutzler, Marjanka K. Schmidt, Elinor J. Sawyer, Suleeporn Sangrajrang, Anja Rudolph, Thomas Choudary Putti, Paolo Peterlongo, Nick Orr, Janet E. Olson, Silje Nord, Heli Nevanlinna, Susan L. Neuhausen, Kenneth Muir, Alfons Meindl, Catriona A. McLean, Keitaro Matsuo, Frederik Marme, Sara Margolin, Siranoush Manoukian, Arto Mannermaa, Jan Lubinski, Artitaya Lophatananon, Annika Lindblom, Jingmei Li, Loic Le Marchand, Diether Lambrechts, Veli-Matti Kosma, Julia A. Knight, Sofia Khan, Daehee Kang, Maria Kabisch, Nichola Johnson, Anna Jakubowska, Hidemi Ito, Chia-Ni Hsiung, John L. Hopper, Antoinette Hollestelle, Mikael Hartman, Ute Hamann, Christopher A. Haiman, Pascal Guénel, Mervi Grip, Graham G. Giles, Montserrat García-Closas, Valerie Gaborieau, Florentia Fostira, Henrik Flyger, Olivia Fletcher, Peter A. Fasching, Thilo Dörk, Arnaud Droit, Peter Devilee, Hatef Darabi, Kamila Czene, Simon S. Cross, Angela Cox, Fergus J. Couch, Ji-Yeob Choi, Jenny Chang-Claude, Sander Canisius, Hui Cai, Barbara Burwinkel, Thomas Brüning, Annegien Broeks, Louise Brinton, Hermann Brenner, Hiltrud Brauch, Stig E. Bojesen, Natalia Bogdanova, William Blot, Javier Benitez, Alicia Beeghly-Fadiel, Matthias W. Beckmann, Volker Arndt, Hoda Anton-Culver, Irene L. Andrulis, Siddhartha P. Kar, Jonathan Beesley, Qiuyin Cai, Xiao-Ou Shu, Roger L. Milne, Qin Wang, Manjeet K. Bolla, Maya Ghoussaini, Kyriaki Michailidou, Chenjie Zeng, Jirong Long, and Xingyi Guo
Abstract: Summary results for all SNPs at the 4q24 locus associated with breast cancer risk at P
Published: 2023

33. Data from Fine-Scale Mapping of the 4q24 Locus Identifies Two Independent Loci Associated with Breast Cancer Risk

Author: Wei Zheng, Douglas F. Easton, Alison M. Dunning, Georgia Chenevix-Trench, Jacques Simard, Paul D.P. Pharoah, Per Hall, Ying Zheng, M. Pilar Zamora, Cheng Har Yip, Anna Wu, Robert Winqvist, Wanqing Wen, Ans van den Ouweland, Chiu-chen Tseng, Thérèse Truong, Ian P.M. Tomlinson, Robert A.E.M. Tollenaar, Amanda Ewart Toland, Bernard Thienpont, Soo Hwang Teo, Anthony Swerdlow, Melissa C. Southey, Martha J. Shrubsole, Jiajun Shi, Chen-Yang Shen, Rita K. Schmutzler, Marjanka K. Schmidt, Elinor J. Sawyer, Suleeporn Sangrajrang, Anja Rudolph, Thomas Choudary Putti, Paolo Peterlongo, Nick Orr, Janet E. Olson, Silje Nord, Heli Nevanlinna, Susan L. Neuhausen, Kenneth Muir, Alfons Meindl, Catriona A. McLean, Keitaro Matsuo, Frederik Marme, Sara Margolin, Siranoush Manoukian, Arto Mannermaa, Jan Lubinski, Artitaya Lophatananon, Annika Lindblom, Jingmei Li, Loic Le Marchand, Diether Lambrechts, Veli-Matti Kosma, Julia A. Knight, Sofia Khan, Daehee Kang, Maria Kabisch, Nichola Johnson, Anna Jakubowska, Hidemi Ito, Chia-Ni Hsiung, John L. Hopper, Antoinette Hollestelle, Mikael Hartman, Ute Hamann, Christopher A. Haiman, Pascal Guénel, Mervi Grip, Graham G. Giles, Montserrat García-Closas, Valerie Gaborieau, Florentia Fostira, Henrik Flyger, Olivia Fletcher, Peter A. Fasching, Thilo Dörk, Arnaud Droit, Peter Devilee, Hatef Darabi, Kamila Czene, Simon S. Cross, Angela Cox, Fergus J. Couch, Ji-Yeob Choi, Jenny Chang-Claude, Sander Canisius, Hui Cai, Barbara Burwinkel, Thomas Brüning, Annegien Broeks, Louise Brinton, Hermann Brenner, Hiltrud Brauch, Stig E. Bojesen, Natalia Bogdanova, William Blot, Javier Benitez, Alicia Beeghly-Fadiel, Matthias W. Beckmann, Volker Arndt, Hoda Anton-Culver, Irene L. Andrulis, Siddhartha P. Kar, Jonathan Beesley, Qiuyin Cai, Xiao-Ou Shu, Roger L. Milne, Qin Wang, Manjeet K. Bolla, Maya Ghoussaini, Kyriaki Michailidou, Chenjie Zeng, Jirong Long, and Xingyi Guo
Abstract: Background: A recent association study identified a common variant (rs9790517) at 4q24 to be associated with breast cancer risk. Independent association signals and potential functional variants in this locus have not been explored.Methods: We conducted a fine-mapping analysis in 55,540 breast cancer cases and 51,168 controls from the Breast Cancer Association Consortium.Results: Conditional analyses identified two independent association signals among women of European ancestry, represented by rs9790517 [conditional P = 2.51 × 10−4; OR, 1.04; 95% confidence interval (CI), 1.02–1.07] and rs77928427 (P = 1.86 × 10−4; OR, 1.04; 95% CI, 1.02–1.07). Functional annotation using data from the Encyclopedia of DNA Elements (ENCODE) project revealed two putative functional variants, rs62331150 and rs73838678 in linkage disequilibrium (LD) with rs9790517 (r2 ≥ 0.90) residing in the active promoter or enhancer, respectively, of the nearest gene, TET2. Both variants are located in DNase I hypersensitivity and transcription factor–binding sites. Using data from both The Cancer Genome Atlas (TCGA) and Molecular Taxonomy of Breast Cancer International Consortium (METABRIC), we showed that rs62331150 was associated with level of expression of TET2 in breast normal and tumor tissue.Conclusion: Our study identified two independent association signals at 4q24 in relation to breast cancer risk and suggested that observed association in this locus may be mediated through the regulation of TET2.Impact: Fine-mapping study with large sample size warranted for identification of independent loci for breast cancer risk. Cancer Epidemiol Biomarkers Prev; 24(11); 1680–91. ©2015 AACR.
Published: 2023

34. Supplementary Table 3 from Candidate Genetic Modifiers for Breast and Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers

Author: Eitan Friedman, Antonis C. Antoniou, Georgia Chenevix-Trench, Paul D.P. Pharoah, Andrew Lee, Sue Healey, Daniel Barrowdale, Lesley McGuffog, Karoline B. Kuchenbaecker, Åke Borg, Marie Stenmark Askmalm, Hans Ehrencrona, Anna von Wachenfeldt, Johanna Rantala, Yael Laitman, Uffe Birk Jensen, Mads Thomassen, Inge Sokilde Pedersen, Anders Bojesen, Amanda Ewart Toland, Irene L. Andrulis, Sandrine Tchatchou, Gord Glendon, Anna Marie Mulligan, Gad Rennert, Phuong L. Mai, Mark H. Greene, Catherine M. Phelan, Muy-Kheng M. Tea, Georg Pfeiler, Daphne Geschwantler Kaulich, Christine Rappaport, Christian F. Singer, Andreas Berger, Vijai Joseph, Liying Zhang, Mark E. Robson, Lauren Jacobs, Marina Corines, Kenneth Offit, Csilla I. Szabo, Xianshu Wang, Noralane M. Lindor, Fergus J. Couch, Curtis Olswold, Manuel R. Teixeira, Jocelyne Chiquette, Adalgeir Arason, Grzegorz Sukiennicki, Katarzyna Jaworska-Bieniek, Katarzyna Durda, Jacek Gronwald, Cezary Cybulski, Lidia Feliubadalo, Joan Brunet, Conxi Lazaro, Ignacio Blanco, Orland Diez, Edith Olah, J. Margriet Collée, Helena C. van Doorn, Margreet G.E.M. Ausems, Nicoline Hoogerbrugge, Maaike P.G. Vreeswijk, Annemarie H. van der Hout, Hanne E.J. Meijers-Heijboer, Theo A.M. van Os, Kristiina Aittomäki, Heli Nevanlinna, Pedro Perez Segura, Miguel de la Hoya, Larry J. Copeland, Gustavo C. Rodriguez, Michael L. Friedlander, Marion Piedmonte, Muriel Belotti, Sylvie Mazoyer, Pascal Pujol, Olivier Caron, Olga M. Sinilnikova, Nadia Boutry-Kryza, Lisa Golmard, Laurence Venat-Bouvet, Laure Barjhoux, Isabelle Coupier, Francesca Damiola, Dominique Stoppa-Lyonnet, Claude Houdayer, Capucine Delnatte, Bruno Buecher, Brigitte Bressac-de Paillerets, Shan Wang-Gohrke, Barbara Wappenschmidt, Raymonda Varon-Mateeva, Norbert Arnold, Nina Ditsch, Kerstin Rhiem, Karin Kast, Hansjoerg Plendl, Doris Steinemann, Dieter Niederacher, Christoph Engel, Christian Sutter, Andrea Gehrig, Alfons Meindl, Tom Van Maerken, Kathleen Claes, Andrew K. Godwin, Trevor Cole, Steve Ellis, Shirley V. Hodgson, Rosemarie Davidson, Radka Platte, Patrick J. Morrison, Mary E. Porteous, Mark T. Rogers, M. John Kennedy, Lucy E. Side, Louise Izatt, Lisa Walker, Julian Barwell, Julian Adlard, Marc Tischkowitz, Jackie Cook, Angela Brady, Diana Eccles, Debra Frost, D. Gareth R. Evans, Claire Foo, Carole Brewer, Alan Donaldson, Judy E. Garber, Florentia Fostira, Athanassios Vratimos, Paolo Radice, Maria Grazia Tibiletti, Aline Martayan, Laura Papi, Giuseppe Giannini, Alessandra Viel, Stefano Fortuzzi, Frederique Mariette, Filomena Ficarazzi, Monica Barile, Giulietta Scuvera, Daniela Zaffaroni, Bernard Peissel, Siranoush Manoukian, Jeffrey N. Weitzel, Kathleen R. Blazer, Edye E. Conway, Javier Benitez, Cristina Martínez-Bouzas, Ana Osorio, Lars Jønson, Bent Ejlertsen, Anne-Marie Gerdes, Thomas V.O. Hansen, Susan L. Neuhausen, Yuan Chun Ding, Elizabeth J. van Rensburg, Cecilia M. Dorfling, Ramunas Janavicius, Saundra S. Buys, David E. Goldgar, Melissa C. Southey, Alex Miron, Wendy K. Chung, Jenny Lester, Sandra Orsulic, Beth Y. Karlan, Banu K. Arun, Timothy R. Rebbeck, Susan M. Domchek, Katherine L. Nathanson, Robert L. Nussbaum, Olufunmilayo I. Olopade, Encarna B. Gómez Garcia, Anna Jakubowska, Jan Lubinski, Laura Matricardi, Marco Montagna, Ana-Teresa Maia, Felicity Lose, Logan C. Walker, Amanda B. Spurdle, Frederieke H. van der Baan, Marjanka K. Schmidt, Matti A. Rookus, Bowang Chen, Stefan Wilkening, Ute Hamann, Douglas F. Easton, Rosalind A. Eeles, Penny Soucy, Jacques Simard, Rita K. Schmutzler, Anja Rudolph, Kirsten B. Moysich, Jenny Chang-Claude, and Paolo Peterlongo
Abstract: Supplementary Table 3. Results of the statistical analyses of SNPs from project 12 in BRCA-mutation carriers affected or non-affected with breast cancer and according to their estrogen receptor status.
Published: 2023

35. Supplementary Figures from BRCA2 Hypomorphic Missense Variants Confer Moderate Risks of Breast Cancer

Author: Fergus J. Couch, Maaike P.G. Vreeswijk, Aura Carreira, David E. Goldgar, Alvaro N.A. Monteiro, Harry Vrieling, Peter Devilee, Amanda Spurdle, Douglas F. Easton, Setareh Moghadasi, Liliana Varesco, Kathleen B.M. Claes, Florentia Fostira, Lenka Foretova, Logan Walker, Jennifer Leary, Ying Zheng, Wei Zheng, Jyh-Cherng Yu, Anna H. Wu, Robert Winqvist, Qin Wang, Lizet E. van der Kolk, Christi J. van Asperen, Thérèse Truong, Diana Torres, Ian Tomlinson, Soo H. Teo, Anthony Swerdlow, Daniel O. Stram, Melissa C. Southey, Susan Slager, Xiao-Ou Shu, Martha Shrubsole, Chen-Yang Shen, Mitul Shah, Caroline Seynaeve, Minouk J. Schoemaker, Marjanka K. Schmidt, Elinor J. Sawyer, Suleeporn Sangrajrang, Anja Rudolph, Valerie Rhenius, Muhammad Usman Rashid, Paolo Radice, Katri Pylkäs, Paul D.P. Pharoah, Julian Peto, Paolo Peterlongo, Ana Osorio, Jan J.C. Oosterwijk, Curtis Olswold, Janet E. Olson, Heli Nevanlinna, Susan L. Neuhausen, Kenneth Muir, Roger L. Milne, Kyriaki Michailidou, Hui Miao, Keitaro Matsuo, Frederik Marme, Sara Margolin, Arto Mannermaa, Eva Machackova, Jan Lubinski, Artitaya Lophatananon, Annika Lindblom, Jingmei Li, Loic Le Marchand, Diether Lambrechts, Kah-Nyin Lai, Vessela Kristensen, Veli-Matti Kosma, Daehee Kang, Anna Jakubowska, Hidemi Ito, John L. Hopper, Antoinette Hollestelle, Frans B. Hogervorst, Mikael Hartman, Ute Hamann, Per Hall, Christopher A. Haiman, Pascal Guénel, Gord Glendon, Graham G. Giles, Montserrat García-Closas, Henrik Flyger, Jonine Figueroa, Peter A. Fasching, Alison M. Dunning, Isabel dos-Santos-Silva, Thilo Dörk, Joe Dennis, Hatef Darabi, Kamila Czene, Simon S. Cross, Angela Cox, J. Margriet Collée, Ji-Yeob Choi, Ching-Yu Cheng, Georgia Chenevix-Trench, Jenny Chang-Claude, Barbara Burwinkel, Thomas Brüning, Barbara Brouwers, Annegien Broeks, Hermann Brenner, Paul Brennan, Hiltrud Brauch, Anne-Lise Borresen-Dale, Manjeet K. Bolla, Stig E. Bojesen, Natalia V. Bogdanova, Javier Benitez, Matthias W. Beckmann, Volker Arndt, Hoda Anton-Culver, Irene Andrulis, Kristiina Aittomäki, Cora M. Aalfs, Chunling Hu, Jenna Lilyquist, Jamie Hinton, Emily Hallberg, Huong Meeks, Fabienne M.G.R. Calléja, Charlotte Martin, Lucia Guidugli, Asa Ehlen, Catharina Von Nicolai, Romy L.S. Mesman, and Hermela Shimelis
Abstract: Figure S1: BCRA2 p.Y3035S Pedigrees. Figure S2: Western blot of ectopically expressed full-length wildtype and mutant hBRCA2 protein in VC8 DR-GFP cells subjected to HDR assay. Figure S3: Purification of wildtype and mutant BRCA2 from human cells. Figure S4: Position of BRCA2 DNA binding domain (DBD) variants on a ribbon diagram of the murine DBD crystal structure.
Published: 2023

36. Data from Candidate Genetic Modifiers for Breast and Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers

Author: Eitan Friedman, Antonis C. Antoniou, Georgia Chenevix-Trench, Paul D.P. Pharoah, Andrew Lee, Sue Healey, Daniel Barrowdale, Lesley McGuffog, Karoline B. Kuchenbaecker, Åke Borg, Marie Stenmark Askmalm, Hans Ehrencrona, Anna von Wachenfeldt, Johanna Rantala, Yael Laitman, Uffe Birk Jensen, Mads Thomassen, Inge Sokilde Pedersen, Anders Bojesen, Amanda Ewart Toland, Irene L. Andrulis, Sandrine Tchatchou, Gord Glendon, Anna Marie Mulligan, Gad Rennert, Phuong L. Mai, Mark H. Greene, Catherine M. Phelan, Muy-Kheng M. Tea, Georg Pfeiler, Daphne Geschwantler Kaulich, Christine Rappaport, Christian F. Singer, Andreas Berger, Vijai Joseph, Liying Zhang, Mark E. Robson, Lauren Jacobs, Marina Corines, Kenneth Offit, Csilla I. Szabo, Xianshu Wang, Noralane M. Lindor, Fergus J. Couch, Curtis Olswold, Manuel R. Teixeira, Jocelyne Chiquette, Adalgeir Arason, Grzegorz Sukiennicki, Katarzyna Jaworska-Bieniek, Katarzyna Durda, Jacek Gronwald, Cezary Cybulski, Lidia Feliubadalo, Joan Brunet, Conxi Lazaro, Ignacio Blanco, Orland Diez, Edith Olah, J. Margriet Collée, Helena C. van Doorn, Margreet G.E.M. Ausems, Nicoline Hoogerbrugge, Maaike P.G. Vreeswijk, Annemarie H. van der Hout, Hanne E.J. Meijers-Heijboer, Theo A.M. van Os, Kristiina Aittomäki, Heli Nevanlinna, Pedro Perez Segura, Miguel de la Hoya, Larry J. Copeland, Gustavo C. Rodriguez, Michael L. Friedlander, Marion Piedmonte, Muriel Belotti, Sylvie Mazoyer, Pascal Pujol, Olivier Caron, Olga M. Sinilnikova, Nadia Boutry-Kryza, Lisa Golmard, Laurence Venat-Bouvet, Laure Barjhoux, Isabelle Coupier, Francesca Damiola, Dominique Stoppa-Lyonnet, Claude Houdayer, Capucine Delnatte, Bruno Buecher, Brigitte Bressac-de Paillerets, Shan Wang-Gohrke, Barbara Wappenschmidt, Raymonda Varon-Mateeva, Norbert Arnold, Nina Ditsch, Kerstin Rhiem, Karin Kast, Hansjoerg Plendl, Doris Steinemann, Dieter Niederacher, Christoph Engel, Christian Sutter, Andrea Gehrig, Alfons Meindl, Tom Van Maerken, Kathleen Claes, Andrew K. Godwin, Trevor Cole, Steve Ellis, Shirley V. Hodgson, Rosemarie Davidson, Radka Platte, Patrick J. Morrison, Mary E. Porteous, Mark T. Rogers, M. John Kennedy, Lucy E. Side, Louise Izatt, Lisa Walker, Julian Barwell, Julian Adlard, Marc Tischkowitz, Jackie Cook, Angela Brady, Diana Eccles, Debra Frost, D. Gareth R. Evans, Claire Foo, Carole Brewer, Alan Donaldson, Judy E. Garber, Florentia Fostira, Athanassios Vratimos, Paolo Radice, Maria Grazia Tibiletti, Aline Martayan, Laura Papi, Giuseppe Giannini, Alessandra Viel, Stefano Fortuzzi, Frederique Mariette, Filomena Ficarazzi, Monica Barile, Giulietta Scuvera, Daniela Zaffaroni, Bernard Peissel, Siranoush Manoukian, Jeffrey N. Weitzel, Kathleen R. Blazer, Edye E. Conway, Javier Benitez, Cristina Martínez-Bouzas, Ana Osorio, Lars Jønson, Bent Ejlertsen, Anne-Marie Gerdes, Thomas V.O. Hansen, Susan L. Neuhausen, Yuan Chun Ding, Elizabeth J. van Rensburg, Cecilia M. Dorfling, Ramunas Janavicius, Saundra S. Buys, David E. Goldgar, Melissa C. Southey, Alex Miron, Wendy K. Chung, Jenny Lester, Sandra Orsulic, Beth Y. Karlan, Banu K. Arun, Timothy R. Rebbeck, Susan M. Domchek, Katherine L. Nathanson, Robert L. Nussbaum, Olufunmilayo I. Olopade, Encarna B. Gómez Garcia, Anna Jakubowska, Jan Lubinski, Laura Matricardi, Marco Montagna, Ana-Teresa Maia, Felicity Lose, Logan C. Walker, Amanda B. Spurdle, Frederieke H. van der Baan, Marjanka K. Schmidt, Matti A. Rookus, Bowang Chen, Stefan Wilkening, Ute Hamann, Douglas F. Easton, Rosalind A. Eeles, Penny Soucy, Jacques Simard, Rita K. Schmutzler, Anja Rudolph, Kirsten B. Moysich, Jenny Chang-Claude, and Paolo Peterlongo
Abstract: Background:BRCA1 and BRCA2 mutation carriers are at substantially increased risk for developing breast and ovarian cancer. The incomplete penetrance coupled with the variable age at diagnosis in carriers of the same mutation suggests the existence of genetic and nongenetic modifying factors. In this study, we evaluated the putative role of variants in many candidate modifier genes.Methods: Genotyping data from 15,252 BRCA1 and 8,211 BRCA2 mutation carriers, for known variants (n = 3,248) located within or around 445 candidate genes, were available through the iCOGS custom-designed array. Breast and ovarian cancer association analysis was performed within a retrospective cohort approach.Results: The observed P values of association ranged between 0.005 and 1.000. None of the variants was significantly associated with breast or ovarian cancer risk in either BRCA1 or BRCA2 mutation carriers, after multiple testing adjustments.Conclusion: There is little evidence that any of the evaluated candidate variants act as modifiers of breast and/or ovarian cancer risk in BRCA1 or BRCA2 mutation carriers.Impact: Genome-wide association studies have been more successful at identifying genetic modifiers of BRCA1/2 penetrance than candidate gene studies. Cancer Epidemiol Biomarkers Prev; 24(1); 308–16. ©2014 AACR.
Published: 2023

37. Supplementary Tables and References from BRCA2 Hypomorphic Missense Variants Confer Moderate Risks of Breast Cancer

Author: Fergus J. Couch, Maaike P.G. Vreeswijk, Aura Carreira, David E. Goldgar, Alvaro N.A. Monteiro, Harry Vrieling, Peter Devilee, Amanda Spurdle, Douglas F. Easton, Setareh Moghadasi, Liliana Varesco, Kathleen B.M. Claes, Florentia Fostira, Lenka Foretova, Logan Walker, Jennifer Leary, Ying Zheng, Wei Zheng, Jyh-Cherng Yu, Anna H. Wu, Robert Winqvist, Qin Wang, Lizet E. van der Kolk, Christi J. van Asperen, Thérèse Truong, Diana Torres, Ian Tomlinson, Soo H. Teo, Anthony Swerdlow, Daniel O. Stram, Melissa C. Southey, Susan Slager, Xiao-Ou Shu, Martha Shrubsole, Chen-Yang Shen, Mitul Shah, Caroline Seynaeve, Minouk J. Schoemaker, Marjanka K. Schmidt, Elinor J. Sawyer, Suleeporn Sangrajrang, Anja Rudolph, Valerie Rhenius, Muhammad Usman Rashid, Paolo Radice, Katri Pylkäs, Paul D.P. Pharoah, Julian Peto, Paolo Peterlongo, Ana Osorio, Jan J.C. Oosterwijk, Curtis Olswold, Janet E. Olson, Heli Nevanlinna, Susan L. Neuhausen, Kenneth Muir, Roger L. Milne, Kyriaki Michailidou, Hui Miao, Keitaro Matsuo, Frederik Marme, Sara Margolin, Arto Mannermaa, Eva Machackova, Jan Lubinski, Artitaya Lophatananon, Annika Lindblom, Jingmei Li, Loic Le Marchand, Diether Lambrechts, Kah-Nyin Lai, Vessela Kristensen, Veli-Matti Kosma, Daehee Kang, Anna Jakubowska, Hidemi Ito, John L. Hopper, Antoinette Hollestelle, Frans B. Hogervorst, Mikael Hartman, Ute Hamann, Per Hall, Christopher A. Haiman, Pascal Guénel, Gord Glendon, Graham G. Giles, Montserrat García-Closas, Henrik Flyger, Jonine Figueroa, Peter A. Fasching, Alison M. Dunning, Isabel dos-Santos-Silva, Thilo Dörk, Joe Dennis, Hatef Darabi, Kamila Czene, Simon S. Cross, Angela Cox, J. Margriet Collée, Ji-Yeob Choi, Ching-Yu Cheng, Georgia Chenevix-Trench, Jenny Chang-Claude, Barbara Burwinkel, Thomas Brüning, Barbara Brouwers, Annegien Broeks, Hermann Brenner, Paul Brennan, Hiltrud Brauch, Anne-Lise Borresen-Dale, Manjeet K. Bolla, Stig E. Bojesen, Natalia V. Bogdanova, Javier Benitez, Matthias W. Beckmann, Volker Arndt, Hoda Anton-Culver, Irene Andrulis, Kristiina Aittomäki, Cora M. Aalfs, Chunling Hu, Jenna Lilyquist, Jamie Hinton, Emily Hallberg, Huong Meeks, Fabienne M.G.R. Calléja, Charlotte Martin, Lucia Guidugli, Asa Ehlen, Catharina Von Nicolai, Romy L.S. Mesman, and Hermela Shimelis
Abstract: Table S1: Description of the BCAC studies contributing to COGS. Table S2: Predicted effects of BRCA1 and BRCA2 variants included in the iCOGS array on protein function. Table S3: Frequency of BRCA1 and BRCA2 variants from iCOGS in breast cancer cases and controls. Table S4: Family studies of Y3035S showing scores for each family by constant relative risk and 75% penetrance. Supplementary References.
Published: 2023

38. Data from BRCA2 Hypomorphic Missense Variants Confer Moderate Risks of Breast Cancer

Author: Fergus J. Couch, Maaike P.G. Vreeswijk, Aura Carreira, David E. Goldgar, Alvaro N.A. Monteiro, Harry Vrieling, Peter Devilee, Amanda Spurdle, Douglas F. Easton, Setareh Moghadasi, Liliana Varesco, Kathleen B.M. Claes, Florentia Fostira, Lenka Foretova, Logan Walker, Jennifer Leary, Ying Zheng, Wei Zheng, Jyh-Cherng Yu, Anna H. Wu, Robert Winqvist, Qin Wang, Lizet E. van der Kolk, Christi J. van Asperen, Thérèse Truong, Diana Torres, Ian Tomlinson, Soo H. Teo, Anthony Swerdlow, Daniel O. Stram, Melissa C. Southey, Susan Slager, Xiao-Ou Shu, Martha Shrubsole, Chen-Yang Shen, Mitul Shah, Caroline Seynaeve, Minouk J. Schoemaker, Marjanka K. Schmidt, Elinor J. Sawyer, Suleeporn Sangrajrang, Anja Rudolph, Valerie Rhenius, Muhammad Usman Rashid, Paolo Radice, Katri Pylkäs, Paul D.P. Pharoah, Julian Peto, Paolo Peterlongo, Ana Osorio, Jan J.C. Oosterwijk, Curtis Olswold, Janet E. Olson, Heli Nevanlinna, Susan L. Neuhausen, Kenneth Muir, Roger L. Milne, Kyriaki Michailidou, Hui Miao, Keitaro Matsuo, Frederik Marme, Sara Margolin, Arto Mannermaa, Eva Machackova, Jan Lubinski, Artitaya Lophatananon, Annika Lindblom, Jingmei Li, Loic Le Marchand, Diether Lambrechts, Kah-Nyin Lai, Vessela Kristensen, Veli-Matti Kosma, Daehee Kang, Anna Jakubowska, Hidemi Ito, John L. Hopper, Antoinette Hollestelle, Frans B. Hogervorst, Mikael Hartman, Ute Hamann, Per Hall, Christopher A. Haiman, Pascal Guénel, Gord Glendon, Graham G. Giles, Montserrat García-Closas, Henrik Flyger, Jonine Figueroa, Peter A. Fasching, Alison M. Dunning, Isabel dos-Santos-Silva, Thilo Dörk, Joe Dennis, Hatef Darabi, Kamila Czene, Simon S. Cross, Angela Cox, J. Margriet Collée, Ji-Yeob Choi, Ching-Yu Cheng, Georgia Chenevix-Trench, Jenny Chang-Claude, Barbara Burwinkel, Thomas Brüning, Barbara Brouwers, Annegien Broeks, Hermann Brenner, Paul Brennan, Hiltrud Brauch, Anne-Lise Borresen-Dale, Manjeet K. Bolla, Stig E. Bojesen, Natalia V. Bogdanova, Javier Benitez, Matthias W. Beckmann, Volker Arndt, Hoda Anton-Culver, Irene Andrulis, Kristiina Aittomäki, Cora M. Aalfs, Chunling Hu, Jenna Lilyquist, Jamie Hinton, Emily Hallberg, Huong Meeks, Fabienne M.G.R. Calléja, Charlotte Martin, Lucia Guidugli, Asa Ehlen, Catharina Von Nicolai, Romy L.S. Mesman, and Hermela Shimelis
Abstract: Breast cancer risks conferred by many germline missense variants in the BRCA1 and BRCA2 genes, often referred to as variants of uncertain significance (VUS), have not been established. In this study, associations between 19 BRCA1 and 33 BRCA2 missense substitution variants and breast cancer risk were investigated through a breast cancer case–control study using genotyping data from 38 studies of predominantly European ancestry (41,890 cases and 41,607 controls) and nine studies of Asian ancestry (6,269 cases and 6,624 controls). The BRCA2 c.9104A>C, p.Tyr3035Ser (OR = 2.52; P = 0.04), and BRCA1 c.5096G>A, p.Arg1699Gln (OR = 4.29; P = 0.009) variant were associated with moderately increased risks of breast cancer among Europeans, whereas BRCA2 c.7522G>A, p.Gly2508Ser (OR = 2.68; P = 0.004), and c.8187G>T, p.Lys2729Asn (OR = 1.4; P = 0.004) were associated with moderate and low risks of breast cancer among Asians. Functional characterization of the BRCA2 variants using four quantitative assays showed reduced BRCA2 activity for p.Tyr3035Ser compared with wild-type. Overall, our results show how BRCA2 missense variants that influence protein function can confer clinically relevant, moderately increased risks of breast cancer, with potential implications for risk management guidelines in women with these specific variants. Cancer Res; 77(11); 2789–99. ©2017 AACR.
Published: 2023

39. Supplementary Materials and Methods, Tables 1-5 from Common Breast Cancer Susceptibility Loci Are Associated with Triple-Negative Breast Cancer

Author: Fergus J. Couch, Xianshu Wang, Heli Nevanlinna, Drakoulis Yannoukakos, Jenny Chang-Claude, Douglas F. Easton, Paul Pharoah, Ute Hamann, Gianluca Severi, Isabel dos Santos Silva, Diether Lambrechts, Grant W. Montgomery, Nicholas G. Martin, Arto Mannermaa, Sara Margolin, Sarah-Jane Dawson, Fiona M. Blows, Jianjun Liu, Astrid Irwanto, Carl Blomqvist, Dario Greco, Jonathan Beesley, Veli-Matti Kosma, Ian Tomlinson, Senno Verhoef, Laura Baglietto, Graham G. Giles, Olivia Fletcher, Julian Peto, Hilde Janssen, Erik Van Limbergen, Yon-Dschun Ko, Arja Jukkola-Vuorinen, Katri Pylkäs, Swati Kulkarni, Foluso Ademuyiwa, Thomas Dünnebier, Asta Försti, Thomas Rüdiger, JoEllen Weaver, Eric Ross, Harsh Pathak, Robert B. Diasio, Zachary Fredericksen, Janet E. Olson, Rosemary Balleine, Christine L. Clarke, George Fountzilas, Athanasios M. Dimopoulos, Dimitrios Pectasides, Florentia Fostira, Irene Konstantopoulou, Hans-Peter Sinn, Judith Heinz, Dieter Flesch-Janys, Stephan Nickels, Rebecca Hein, Nikki Graham, Lorraine Durcan, Susan M. Gerty, William J. Tapper, Arif B. Ekici, Rüdiger Schulz-Wendtland, Matthias W. Beckmann, Arndt Hartmann, Elinor Sawyer, Simon S. Cross, Angela Cox, Marjanka K. Schmidt, Hiltrud Brauch, Robert Winqvist, Christine Ambrosone, Andrew K. Godwin, Jane E. Carpenter, Diana Eccles, Penelope Miron, Peter A. Fasching, Curtis Olswold, Timothy Lesnick, Susan Slager, Adam M. Lee, Celine M. Vachon, and Kristen N. Stevens
Abstract: PDDF file - 167K
Published: 2023

40. Physicians’ experience, practice and education, on genetic testing and genetic counseling: a nationwide survey study in Greece

Author: Elena Fountzilas, Paraskevi Apostolou, Angelo V. Vasiliadis, Dimitra Aivazi, Emmanouil Saloustros, and Florentia Fostira
Subjects: Ovarian Neoplasms, Cancer Research, Greece, Genetic Counseling, Breast Neoplasms, Oncology, Physicians, Surveys and Questionnaires, Genetics, Humans, Female, Genetic Testing, Practice Patterns, Physicians', Genetics (clinical)
Abstract: Genetic testing has been implemented in clinical practice. However, data on physician's practices and education related to cancer genetics, risk assessment and clinical management in Greece, is limited. In Greece, genetic counseling is performed by treating physicians in collaboration with clinical laboratory geneticists due to the absence of medical geneticists and genetic counsellors. We evaluated treating physicians' experience on genetic testing for hereditary cancer and counseling practices in Greece, thus providing critical areas for improvement of genetic counseling processes. A 28-question survey was used to assess physicians' experience with genetic testing practices, factors that affect their clinical management and decision making and limitations in their education. Of 250 physicians, 208 (83%) completed the survey; of whom 89 (42.8%) were medical oncologists, 88 general surgeons (42.3%), 26 gynecologists (12.5%) and 5 (2.4%) of other specialties. Overall, 91.8% of participants referred patients for genetic testing, with 51.8% recommending multigene panel testing. While most clinicians (84%) reported lack of a clinical genetics department at their institution, 75.7% referred patients for genetic counseling at available departments or healthcare professionals with expertise in genetic counseling. Overall, 68.8% of respondents reported no training or moderate training on cancer genetics. A higher proportion of medical oncologists reported sufficient/very satisfactory training (40.9%) compared to general surgeons (27.3%) or gynecologists (11.5%) (p = 0.012). Time spent on pre- and post-testing sessions varied significantly among respondents. Of 199 physicians, 70% would manage patients with BRCA1 VUS as patients with pathogenic variants, mainly surgeons (83.1%) and gynecologists (80%), compared to oncologists (52.3%) (p 0.001). Additionally, 64% of physicians treating patients with breast and ovarian cancer would recommend an intervention based on the presence of a BRCA1 VUS. Most respondents (87%) were interested in receiving additional education on cancer risk assessment. Limited consensus was observed during physicians' genetic testing, counseling practices and clinical management of patients with increased predisposition to cancer. Our findings highlight the need for improvement in physician education on cancer risk assessment and increase of genetic counseling resources and services.
Published: 2022

41. Molecular profile and clinical features of patients with gliomas using a broad targeted next generation-sequencing panel

Author: Ourania Romanidou, Paraskevi Apostolou, Kyriakos Kouvelakis, Kyriakos Tsangaras, Alexia Eliades, Achilleas Achilleos, Charalambos Loizides, Christos Lemesios, Marios Ioannides, Elena Kypri, George Koumbaris, Kyriaki Papadopoulou, Athanasios Papathanasiou, Georgios Rigakos, Ioannis Xanthakis, Florentia Fostira, Vassiliki Kotoula, George Fountzilas, and Philippos Patsalis
Subjects: Cancer Research, Oncology, Articles
Abstract: Gliomas are the most common malignant primary brain tumors characterized by poor prognosis. The genotyping of tumors using next generation sequencing (NGS) platforms enables the identification of genetic alterations that constitute diagnostic, prognostic and predictive biomarkers. The present study investigated the molecular profile of 32 tumor samples from 32 patients with high-grade gliomas by implementing a broad 80-gene targeted NGS panel while reporting their clinicopathological characteristics and outcomes. Subsequently, 14 of 32 tumor specimens were also genotyped using a 55-gene NGS panel to validate the diagnostic accuracy and clinical utility of the extended panel. The median follow-up was 19.2 months. In total, 129 genetic alterations including 33 structural variants were identified in 38 distinct genes. Among 96 variants (single nucleotide variants and insertions and deletions), 38 were pathogenic and 58 variants of unknown clinical significance. TP53 was the most frequently mutated gene, followed by PTEN and IDH1 genes. Glioma patients with IDH1 mutant tumors were younger and had significantly longer overall survival compared to patients with wild-type IDH1 tumors. Similarly, tumors with TP53 mutations were more likely observed in younger patients with glioma. Subsequently, a comparison of mutational profiles of samples analyzed by both panels was also performed. Implementation of the comprehensive pan-cancer and the MOL panels resulted in the identification of 37 and 15 variants, respectively. Of those, 13 were common. Comprehensive pan-cancer panel identified 24 additional variants, 22 of which were located in regions that were not targeted by the MOL panel. By contrast, the MOL panel identified two additional variants. Overall, the present study demonstrated that using an extended tumor profile assay instead of a glioma-specific tumor profile panel identified additional genetic changes that may be taken into consideration as potential therapeutic targets for glioma diagnosis and molecular classification.
Published: 2022

42. Breast cancer in very young (≤35 years) women: clinicopathological and genetic features of the disease from a breast surgical oncology department

Author: Dimitrios Nasikas, Despoina Kalfakakou, Florentia Fostira, Christina Iosifidou, Anna Fokianou, Panagiota Ntasiou, and Grigorios Xepapadakis
Subjects: Oncology, Surgery, General Medicine
Published: 2023

43. Follow-up of tissue genomics in BRCA1/2 carriers who underwent prophylactic surgeries

Author: Spyros Miliaras, Konstantinos Papazisis, George Fountzilas, Sofia Chrisafi, Eleni Vrettou, Thomas Zaramboukas, Ioannis Natsiopoulos, Georgia-Angeliki Koliou, Ioannis Tikas, Efterpi Demiri, Anthoula Asimaki-Vlachopoulou, Elena Fountzilas, Florentia Fostira, Kyriaki Papadopoulou, Christos Poulios, Ananias Ananiadis, Paraskevi Apostolou, Vassiliki Kotoula, and Aris P. Tsiftsoglou
Subjects: Adult, medicine.medical_specialty, Breast Neoplasms, Gastroenterology, Germline, Loss of heterozygosity, Breast cancer, Surgical oncology, Internal medicine, Genotype, medicine, Humans, Genetic Predisposition to Disease, Pharmacology (medical), Radiology, Nuclear Medicine and imaging, Genotyping, Germ-Line Mutation, BRCA2 Protein, BRCA1 Protein, business.industry, Cancer, Histology, Genomics, General Medicine, Middle Aged, medicine.disease, Prophylactic Mastectomy, Oncology, Female, business, Follow-Up Studies
Abstract: The genomic status of non-malignant tissues from carriers of pathogenic germline BRCA1/2 (gBRCA1/2) variants may reveal information towards individualized prophylaxis. We performed spatiotemporal tissue genotype comparisons in a real-life cohort of gBRCA1/2 carriers of Greek origin, who underwent multiple risk-reducing/prophylactic surgeries at various time points. Fifty-three women (median age 36 years) within cancer families were observed for up to 37.5 years; 43 were cancer carriers and 10 were healthy carriers. Histology review and genotyping were performed for 187 paraffin tissues (average: 3.5 per carrier) including 46 carcinomas (40 breast) and 141 non-malignant breast and gynecological samples. High allelic imbalance (AI) and somatic pathogenic TP53 variants were present in cancer carriers only (p values
Published: 2021

44. Investigation of prognostic biomarkers in patients with urothelial carcinoma treated with platinum-based regimens

Author: Kyriaki Papadopoulou, Georgia-Angeliki Koliou, Dimitrios Tsimiliotis, Vassiliki Kotoula, Periklis Foukas, Anna Goussia, Marinos Tsiatas, Anastasios Visvikis, Kyriakos Chatzopoulos, Martha Nifora, Antonia Charchanti, Anna Koumarianou, Christos Christodoulou, Dimitrios Pectasides, Amanda Psyrri, Florentia Fostira, George Fountzilas, and Epaminontas Samantas
Subjects: Carcinoma, Transitional Cell, Lymphocytes, Tumor-Infiltrating, Oncology, Urinary Bladder Neoplasms, Urology, Biomarkers, Tumor, Humans, CD8-Positive T-Lymphocytes, Prognosis, B7-H1 Antigen, Platinum, Xeroderma Pigmentosum Group D Protein
Abstract: Bladder cancer (BC) is a heterogeneous malignancy with dismal outcome.Mutations in genes, altered or linked to platinum sensitivity in BC, were examined in 66 patients' tumors along with tumor infiltrating lymphocytes (TILs) density and MMR, PD-L1 and CD8 protein expression, as well as basal and luminal subtypes, defined by protein expression of markers, including CK5/6 and GATA3 or CK20, respectively.41 tumors harbored mutations, mainly in TP53 (38%), ARID1A (17%) and the DNA damage response and repair (DDR) genes ERCC2 (17%) and BRCA2 (15%). Mutations in other DDR relevant genes were also present. Age showed unfavorable prognosis for overall survival (HR=1.07, P = 0.026); no benefit was seen for patients with TP53, ARID1A, ERCC2 or BRCA2 mutations or mutations in 1 or more DDR genes. PD-L1 status positively correlated with stromal (rho=0.46, P0.001) and intratumoral (rho=0.53, P0.001) CD8 expression or TILs (rho=0.29, P = 0.018); none associated with overall survival (OS). A statistically significant difference was observed between PD-L1 status and immunohistochemistry (IHC)‑based subtypes, with tumors classified as luminal (GATA3+ and/or CK20+ and CK5/6-) showing lower PD-L1 expression relative to basal (CK5/6+ and GATA3- and/or CK20-) (median value 0 vs. 2.5, P = 0.029). Concerning OS, no statistically significant difference was seen among patients with basal or luminal tumors.No association was seen herein between DDR mutations, TILs, PD-L1, CD8 expression or IHC-based subtypes and patient survival; these observations warrant validation within a larger cohort.
Published: 2022

45. Management and long term follow up of hyperparathyroidism in multiple endocrine neoplasia type 1: single center experience

Author: Maria Yavropoulou, Sofia Vlachou, Marina Tsoli, Florentia Fostira, Gregory Kaltsas, and Eva Kassi
Published: 2022

46. CLINICAL CHARACTERIZATION AND MUTATION SPECTRUM IN CRETAN PATIENTS WITH HEREDITARY POLYPOSIS SYNDROMES

Author: Magdalini Velegraki, Florentia Fostira, Emmanouil Saloustros, Andreas Strehle, Konstantinos Agiannitopoulos, Dimitrios Mavroudis, and Grigorios Paspatis
Subjects: Gastroenterology, Radiology, Nuclear Medicine and imaging
Published: 2022

47. Re‐evaluating the pathogenicity of the c.783+2T>C BAP1 germline variant

Author: Revital Bruchim, Shiri Shkedi-Rafid, Rinat Bernstein-Molho, Iris Barshack, Eitan Friedman, Chana Vinkler, Camila Avivi, Drakoulis Yannoukakos, Yael Laitman, Gabriel Arie Lidzbarsky, Florentia Fostira, Noam Shomron, Merav Akiva Ben David, Lily Bazak, Yael Goldberg, Malak Darawshe, and Lina Basel Salmon
Subjects: Uveal Neoplasms, medicine.medical_specialty, Skin Neoplasms, Somatic cell, Biology, Germline, law.invention, 03 medical and health sciences, law, Genetics, medicine, Humans, Genetic Predisposition to Disease, Melanoma, Germ-Line Mutation, Genetics (clinical), Polymerase chain reaction, 030304 developmental biology, Sequence (medicine), 0303 health sciences, BAP1, Tumor Suppressor Proteins, 030305 genetics & heredity, Alternative splicing, Penetrance, Medical genetics, Ubiquitin Thiolesterase
Abstract: BAP1 germline pathogenic sequence variants (PSVs) underlie a unique tumor predisposition syndrome (BAP1-TPDS) associated with an increased lifetime risk for developing primarily pleural and peritoneal mesothelioma and uveal and cutaneous melanoma. Overwhelmingly, BAP1 PSVs are unique, family-specific inactivating variants. We identified seven families, six of Jewish Iraqi origin, harboring an identical BAP1 splice variant (c.783+2T>C), currently assigned a "likely pathogenic" status. Given a nonclassical BAP1-TPDS tumor type clustering and low penetrance in these families, the pathogenicity of this variant was re-evaluated by a combined approach including literature analysis, revised bioinformatics analysis, allelic loss, effect on the transcript, and tumor protein expression patterns. None of the three available tumors showed an allelic loss, there was no discernable effect on alternative splicing based on reverse-transcription polymerase chain reaction, and there was no decrease or loss of somatic protein expression in 2/3 analyzed tumors. This led to assigning a Benign Strong (BS) criteria, BS4, supporting BS3 criteria, and weakening the Pathogenic Supporting (PP) criteria PP5. Combined, these data suggest that this sequence variant should be reclassified as a variant of unknown significance by American College of Medical Genetics (ACMG) criteria.
Published: 2021

48. Abstract P6-02-15: Don’t get lost in translation: Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) recommendations for reporting germline cancer susceptibility gene variants in 19 languages – breast cancer as a model

Author: Arcangela De Nicolo, Diana M. Eccles, Sarah Louise Ariansen, Michela Biancolella, Miguel de la Hoya, Orland Diez, Hans Ehrencrona, Florentia Fostira, Tiara Hassan, Issei Imoto, Artur Kowalik, Fabienne Lesueur, Arjen R. Mensenkamp, Heli Nevanlinna, Joanne Ngeow, Edenir I. Palmero, Inge Søkilde Pedersen, Frances Que, Jana Soukupová, Yen Tan, Ana Vega, Amanda B. Spurdle, and Paolo Radice
Subjects: Cancer Research, Oncology
Abstract: Genetic testing for cancer susceptibility is a cornerstone of precision cancer prevention and care. Major communication hurdles remain for the differently specialized professionals involved in the identification, counselling, and clinical management of at-risk individuals. This may be ascribed to gaps in the genetic/genomic literacy of health care providers and to an ambiguous lexicon used for variant description. The Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) international consortium endorses controlled terminology and a framework for interpretation and reporting of germline variants in cancer susceptibility genes (PMID: 30962250). However, for most ENIGMA affiliates a language other than English is used for written and verbal communication of genetic test results, potentially confounding local application of the published framework. The ENIGMA Clinical Working Group thus launched a Vocabulary Translation Project (VTP) to translate the ENIGMA recommendations into the various languages spoken by the membership. The VTP involved 65 ENIGMA members from 22 countries organized into 19 language-specific teams, covering Catalan, Chinese, Czech, Danish, Dutch, Finnish, French, Galician, German, Greek, Italian, Japanese, Malay, Norwegian, Polish, Portuguese, Spanish (Castilian), Swedish, and Tagalog. Excerpts from the original publication were selected for translation based on a majority consensus and included a glossary of terms and recommendations for interpreting and reporting germline sequence variants in (breast) cancer susceptibility genes. Using a two-step process, each team conducted the relevant translation followed by independent back-translation to English. The VTP proved useful to reappraise the reference text. It disclosed transnational issues, which prompted revision of the original source to emphasize that risk estimates and actionability were based on breast cancer as an exemplar. It also highlighted country-specific differences with regards to breast cancer risk assessment (e.g. different absolute/relative breast cancer risk cut points) and management. As a secondary outcome, via electronic survey of the participating teams we documented the perceived high value of the translation effort and its expected positive impact on more consistent clinical management of carrier individuals. The identified target audience encompasses medical geneticists, physicians of other specialties participating in multidisciplinary teams, genetic counselors, primary care physicians, as well as non-health care professionals, e.g. journalists and science communicators. The outreach program includes dissemination of the translations via local, regional, and especially national networks and their use for education and training purposes. Because French, Portuguese, and Spanish are widely used as official, co-official, or secondary languages, the reach of the VTP potentially extends to a greater number of countries and territories, mostly in Central and South America, Caribbean, and Africa. By moving a step forward towards terminological coherence across disciplines and borders, we will facilitate more precise delivery and clinical application of genetic test results for breast cancer predisposition. Our translated recommendations will improve interdisciplinary cross-talk and carriers’ awareness of the risks and implications associated with their status, contributing to more informed decision-making. We used breast cancer as a blueprint. Application of the model to other cancer types will require calibration on the cancer-specific absolute and relative risks. Citation Format: Arcangela De Nicolo, Diana M. Eccles, Sarah Louise Ariansen, Michela Biancolella, Miguel de la Hoya, Orland Diez, Hans Ehrencrona, Florentia Fostira, Tiara Hassan, Issei Imoto, Artur Kowalik, Fabienne Lesueur, Arjen R. Mensenkamp, Heli Nevanlinna, Joanne Ngeow, Edenir I. Palmero, Inge Søkilde Pedersen, Frances Que, Jana Soukupová, Yen Tan, Ana Vega, Amanda B. Spurdle, Paolo Radice. Don’t get lost in translation: Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) recommendations for reporting germline cancer susceptibility gene variants in 19 languages – breast cancer as a model [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P6-02-15.
Published: 2023

49. Abstract P6-02-10: Prevalence of breast cancer predisposing variants in patients with breast carcinoma in situ

Author: Florentia Fostira, Dimitrios Nasikas, Paraskevi Apostolou, Vassiliki Dellatola, Anna Fokianou, Panagiota Kontogianni, Romina Alevizou, Sofia Filippidou, Dimitrios Maniatis, Lazaros Papadopoulos, Emmanouil Pavlakis, Panagiota Ntasiou, Sofia Karageorgopoulou, and Grigorios Xepapadakis
Subjects: Cancer Research, Oncology
Abstract: Background. Carcinoma in situ (CIS) of the breast is a non-obligatory pre-malignant breast lesion and a highly suspected precursor of invasive cancer. Although the selection criteria for referral to genetic testing are well established for patients diagnosed with invasive breast cancer, these are not clear for patients diagnosed with CIS. Our goal is to assess the prevalence of predisposing pathogenic variants in key genes, as well as to describe factors in patients with CIS that might be associated with genetic predisposition. Methods. A total of 267 patients solely diagnosed with CIS (mean age 43.65 years, range 18-74) through years 2010-2022, were referred for genetic testing and were analyzed, following their informed consent, implementing a 42-gene panel. Of these, 81.5%, 12.4% and 5.8% were ductal, lobular and mixed CIS, respectively. Patients having a synchronous invasive breast cancer diagnosis were not included in the study. Of patients with known grade, 52.28%, 28.9% and 18.8% were grade 3, 2 and 1, respectively. Strong family history for breast cancer (>2 close family relatives) was positive in 28% (75/267) of patients, while 67.8% of CIS were hormone receptor positive. Results. A total of 12.7% (34/267) of patients carried pathogenic variants in seven clinically actionable genes, i.e. CHEK2 (10), BRCA2 (9), BRCA1 (5), ATM (5), PALB2 (2), MSH6 (2) and TP53 (1). Mean age at diagnosis of carriers was 42.1 years (range 29-61 years, p=0.26), 60% of patients had a grade 3 CIS diagnosis (OR 1.1, 95% 0.589-2.1, p=0.73), 96% had a hormone positive diagnosis (OR 1.4, 95% 0.78-2.50, p=0.24), while 73.5% (25/34) reported as having at least two close family relatives with breast cancer (OR 2.9, 95% 1.6-5.1, p=0.0001). The vast majority of carriers had a ductal CIS (DCIS) diagnosis, i.e. 91.2% (31/34) although this did not reach statistical significance (OR 1.087, 95% 0.64-1.82, p=0.72), probably due to small numbers. Notably, carriers were more likely to have a diagnosis with comedo characteristics, although this parameter has not been monitored closely for the whole cohort. Conclusion. Herein, an important fraction of patients with breast CIS carried pathogenic variants in clinically actionable genes, with the most frequent being CHEK2, BRCA2, BRCA1 and ATM. Notably, the prevalence is comparable to that of patients with invasive breast cancer. Strong family history for breast cancer was strongly associated with the identification of predisposing variants. Other factors, such as high grade, hormone positivity, age at diagnosis and others might also be associated with predisposition to CIS, but larger, prospective, studies are needed to confirm these. This is one of the few studies evaluating the inherited predisposition associated with both high and moderate penetrant breast cancer genes, highlighting that individuals with CIS diagnosis and strong family history for breast cancer should be offered the option to genetic testing via multigene panel. Citation Format: Florentia Fostira, Dimitrios Nasikas, Paraskevi Apostolou, Vassiliki Dellatola, Anna Fokianou, Panagiota Kontogianni, Romina Alevizou, Sofia Filippidou, Dimitrios Maniatis, Lazaros Papadopoulos, Emmanouil Pavlakis, Panagiota Ntasiou, Sofia Karageorgopoulou, Grigorios Xepapadakis. Prevalence of breast cancer predisposing variants in patients with breast carcinoma in situ [abstract]. In: Proceedings of the 2022 San Antonio Breast Cancer Symposium; 2022 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2023;83(5 Suppl):Abstract nr P6-02-10.
Published: 2023

50. Male Breast Carcinoma: A single-institution experience in surgical treatment and clinical outcomes

Author: Dimitrios Nasikas, Dimitrios Panousis, Florentia Fostira, Christina Iosifidou, Anna Fokianou, Panagiota Ntasiou, Afrodite Nonni, and Grigorios Xepapadakis
Subjects: Oncology, Surgery, General Medicine
Published: 2023

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