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7 results on '"Consortium of Investigators of Modifiers of BRCA1/2"'

1. Cell-type-specific enrichment of risk-associated regulatory elements at ovarian cancer susceptibility loci.

Author

Coetzee, Simon G, Shen, Howard C, Hazelett, Dennis J, Lawrenson, Kate, Kuchenbaecker, Karoline, Tyrer, Jonathan, Rhie, Suhn K, Levanon, Keren, Karst, Alison, Drapkin, Ronny, Ramus, Susan J, Ovarian Cancer Association Consortium, The Consortium of Investigators of Modifiers of BRCA1/2, Couch, Fergus J, Offit, Kenneth, Chenevix-Trench, Georgia, Monteiro, Alvaro NA, Antoniou, Antonis, Freedman, Matthew, Coetzee, Gerhard A, Pharoah, Paul DP, Noushmehr, Houtan, Gayther, Simon A, and Ovarian Cancer Association Consortium The Consortium of Investigators of Modifiers of BRCA1/2

Subjects
Ovarian Cancer Association Consortium, The Consortium of Investigators of Modifiers of BRCA1/2, Ovarian Cancer Association Consortium The Consortium of Investigators of Modifiers of BRCA1/2, Chromatin, Humans, Ovarian Neoplasms, Genetic Predisposition to Disease, Histones, Organ Specificity, Regulatory Sequences, Nucleic Acid, Polymorphism, Single Nucleotide, Female, Genome-Wide Association Study, Ovarian Cancer Association Consortium, The Consortium of Investigators of Modifiers of BRCA1/2, Regulatory Sequences, Nucleic Acid, Polymorphism, Single Nucleotide, Genetics & Heredity, Biological Sciences, Medical and Health Sciences
Abstract

Understanding the regulatory landscape of the human genome is a central question in complex trait genetics. Most single-nucleotide polymorphisms (SNPs) associated with cancer risk lie in non-protein-coding regions, implicating regulatory DNA elements as functional targets of susceptibility variants. Here, we describe genome-wide annotation of regions of open chromatin and histone modification in fallopian tube and ovarian surface epithelial cells (FTSECs, OSECs), the debated cellular origins of high-grade serous ovarian cancers (HGSOCs) and in endometriosis epithelial cells (EECs), the likely precursor of clear cell ovarian carcinomas (CCOCs). The regulatory architecture of these cell types was compared with normal human mammary epithelial cells and LNCaP prostate cancer cells. We observed similar positional patterns of global enhancer signatures across the three different ovarian cancer precursor cell types, and evidence of tissue-specific regulatory signatures compared to non-gynecological cell types. We found significant enrichment for risk-associated SNPs intersecting regulatory biofeatures at 17 known HGSOC susceptibility loci in FTSECs (P = 3.8 × 10(-30)), OSECs (P = 2.4 × 10(-23)) and HMECs (P = 6.7 × 10(-15)) but not for EECs (P = 0.45) or LNCaP cells (P = 0.88). Hierarchical clustering of risk SNPs conditioned on the six different cell types indicates FTSECs and OSECs are highly related (96% of samples using multi-scale bootstrapping) suggesting both cell types may be precursors of HGSOC. These data represent the first description of regulatory catalogues of normal precursor cells for different ovarian cancer subtypes, and provide unique insights into the tissue specific regulatory variation with respect to the likely functional targets of germline genetic susceptibility variants for ovarian cancer.

Published
2015

2. Identification and molecular characterization of a new ovarian cancer susceptibility locus at 17q21.31.

Author

Permuth-Wey, Jennifer, Lawrenson, Kate, Shen, Howard C, Velkova, Aneliya, Tyrer, Jonathan P, Chen, Zhihua, Lin, Hui-Yi, Chen, Y Ann, Tsai, Ya-Yu, Qu, Xiaotao, Ramus, Susan J, Karevan, Rod, Lee, Janet, Lee, Nathan, Larson, Melissa C, Aben, Katja K, Anton-Culver, Hoda, Antonenkova, Natalia, Antoniou, Antonis C, Armasu, Sebastian M, Australian Cancer Study, Australian Ovarian Cancer Study, Bacot, François, Baglietto, Laura, Bandera, Elisa V, Barnholtz-Sloan, Jill, Beckmann, Matthias W, Birrer, Michael J, Bloom, Greg, Bogdanova, Natalia, Brinton, Louise A, Brooks-Wilson, Angela, Brown, Robert, Butzow, Ralf, Cai, Qiuyin, Campbell, Ian, Chang-Claude, Jenny, Chanock, Stephen, Chenevix-Trench, Georgia, Cheng, Jin Q, Cicek, Mine S, Coetzee, Gerhard A, Consortium of Investigators of Modifiers of BRCA1/2, Cook, Linda S, Couch, Fergus J, Cramer, Daniel W, Cunningham, Julie M, Dansonka-Mieszkowska, Agnieszka, Despierre, Evelyn, Doherty, Jennifer A, Dörk, Thilo, du Bois, Andreas, Dürst, Matthias, Easton, Douglas F, Eccles, Diana, Edwards, Robert, Ekici, Arif B, Fasching, Peter A, Fenstermacher, David A, Flanagan, James M, Garcia-Closas, Montserrat, Gentry-Maharaj, Aleksandra, Giles, Graham G, Glasspool, Rosalind M, Gonzalez-Bosquet, Jesus, Goodman, Marc T, Gore, Martin, Górski, Bohdan, Gronwald, Jacek, Hall, Per, Halle, Mari K, Harter, Philipp, Heitz, Florian, Hillemanns, Peter, Hoatlin, Maureen, Høgdall, Claus K, Høgdall, Estrid, Hosono, Satoyo, Jakubowska, Anna, Jensen, Allan, Jim, Heather, Kalli, Kimberly R, Karlan, Beth Y, Kaye, Stanley B, Kelemen, Linda E, Kiemeney, Lambertus A, Kikkawa, Fumitaka, Konecny, Gottfried E, Krakstad, Camilla, Kjaer, Susanne Krüger, Kupryjanczyk, Jolanta, Lambrechts, Diether, Lambrechts, Sandrina, Lancaster, Johnathan M, Le, Nhu D, Leminen, Arto, Levine, Douglas A, Liang, Dong, Lim, Boon Kiong, and Lin, Jie

Subjects
Australian Cancer Study, Australian Ovarian Cancer Study, Consortium of Investigators of Modifiers of BRCA1/2, Chromosomes, Human, Pair 17, Humans, Neoplasms, Glandular and Epithelial, Ovarian Neoplasms, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Female, Carcinoma, Ovarian Epithelial, Human Genome, Biotechnology, Rare Diseases, Cancer, Genetics, Ovarian Cancer, 2.1 Biological and endogenous factors
Abstract

Epithelial ovarian cancer (EOC) has a heritable component that remains to be fully characterized. Most identified common susceptibility variants lie in non-protein-coding sequences. We hypothesized that variants in the 3' untranslated region at putative microRNA (miRNA)-binding sites represent functional targets that influence EOC susceptibility. Here, we evaluate the association between 767 miRNA-related single-nucleotide polymorphisms (miRSNPs) and EOC risk in 18,174 EOC cases and 26,134 controls from 43 studies genotyped through the Collaborative Oncological Gene-environment Study. We identify several miRSNPs associated with invasive serous EOC risk (odds ratio=1.12, P=10(-8)) mapping to an inversion polymorphism at 17q21.31. Additional genotyping of non-miRSNPs at 17q21.31 reveals stronger signals outside the inversion (P=10(-10)). Variation at 17q21.31 is associated with neurological diseases, and our collaboration is the first to report an association with EOC susceptibility. An integrated molecular analysis in this region provides evidence for ARHGAP27 and PLEKHM1 as candidate EOC susceptibility genes.

Published
2013

3. Ovarian cancer pathology characteristics as predictors of variant pathogenicity in BRCA1 and BRCA2.

Author

O'Mahony, Denise G, O'Mahony, Denise G, Ramus, Susan J, Southey, Melissa C, Meagher, Nicola S, Hadjisavvas, Andreas, John, Esther M, Hamann, Ute, Imyanitov, Evgeny N, Andrulis, Irene L, Sharma, Priyanka, Daly, Mary B, Hake, Christopher R, Weitzel, Jeffrey N, Jakubowska, Anna, Godwin, Andrew K, Arason, Adalgeir, Bane, Anita, Simard, Jacques, Soucy, Penny, Caligo, Maria A, Mai, Phuong L, Claes, Kathleen BM, Teixeira, Manuel R, Chung, Wendy K, Lazaro, Conxi, Hulick, Peter J, Toland, Amanda E, Pedersen, Inge Sokilde, HEBON Investigators, Neuhausen, Susan L, Vega, Ana, de la Hoya, Miguel, Nevanlinna, Heli, Dhawan, Mallika, Zampiga, Valentina, Danesi, Rita, Varesco, Liliana, Gismondi, Viviana, Vellone, Valerio Gaetano, James, Paul A, Janavicius, Ramunas, Nikitina-Zake, Liene, Nielsen, Finn Cilius, van Overeem Hansen, Thomas, Pejovic, Tanja, Borg, Ake, Rantala, Johanna, Offit, Kenneth, Montagna, Marco, Nathanson, Katherine L, Domchek, Susan M, Osorio, Ana, García, María J, Karlan, Beth Y, GEMO Study Collaborators, De Fazio, Anna, Bowtell, David, AOCS Group, McGuffog, Lesley, Leslie, Goska, Parsons, Michael T, Dörk, Thilo, Speith, Lisa-Marie, Dos Santos, Elizabeth Santana, da Costa, Alexandre André BA, Radice, Paolo, Peterlongo, Paolo, Papi, Laura, Engel, Christoph, Hahnen, Eric, Schmutzler, Rita K, Wappenschmidt, Barbara, Easton, Douglas F, Tischkowitz, Marc, Singer, Christian F, Tan, Yen Yen, Whittemore, Alice S, Sieh, Weiva, Brenton, James D, Yannoukakos, Drakoulis, Fostira, Florentia, Konstantopoulou, Irene, Soukupova, Jana, Vocka, Michal, CZECANCA Consortium, Chenevix-Trench, Georgia, Pharoah, Paul DP, Antoniou, Antonis C, Goldgar, David E, Spurdle, Amanda B, Michailidou, Kyriaki, Consortium of Investigators of Modifiers of BRCA1/2, Evidence-based Network for the Interpretation of Germline Mutant Alleles Consortium, O'Mahony, Denise G, O'Mahony, Denise G, Ramus, Susan J, Southey, Melissa C, Meagher, Nicola S, Hadjisavvas, Andreas, John, Esther M, Hamann, Ute, Imyanitov, Evgeny N, Andrulis, Irene L, Sharma, Priyanka, Daly, Mary B, Hake, Christopher R, Weitzel, Jeffrey N, Jakubowska, Anna, Godwin, Andrew K, Arason, Adalgeir, Bane, Anita, Simard, Jacques, Soucy, Penny, Caligo, Maria A, Mai, Phuong L, Claes, Kathleen BM, Teixeira, Manuel R, Chung, Wendy K, Lazaro, Conxi, Hulick, Peter J, Toland, Amanda E, Pedersen, Inge Sokilde, HEBON Investigators, Neuhausen, Susan L, Vega, Ana, de la Hoya, Miguel, Nevanlinna, Heli, Dhawan, Mallika, Zampiga, Valentina, Danesi, Rita, Varesco, Liliana, Gismondi, Viviana, Vellone, Valerio Gaetano, James, Paul A, Janavicius, Ramunas, Nikitina-Zake, Liene, Nielsen, Finn Cilius, van Overeem Hansen, Thomas, Pejovic, Tanja, Borg, Ake, Rantala, Johanna, Offit, Kenneth, Montagna, Marco, Nathanson, Katherine L, Domchek, Susan M, Osorio, Ana, García, María J, Karlan, Beth Y, GEMO Study Collaborators, De Fazio, Anna, Bowtell, David, AOCS Group, McGuffog, Lesley, Leslie, Goska, Parsons, Michael T, Dörk, Thilo, Speith, Lisa-Marie, Dos Santos, Elizabeth Santana, da Costa, Alexandre André BA, Radice, Paolo, Peterlongo, Paolo, Papi, Laura, Engel, Christoph, Hahnen, Eric, Schmutzler, Rita K, Wappenschmidt, Barbara, Easton, Douglas F, Tischkowitz, Marc, Singer, Christian F, Tan, Yen Yen, Whittemore, Alice S, Sieh, Weiva, Brenton, James D, Yannoukakos, Drakoulis, Fostira, Florentia, Konstantopoulou, Irene, Soukupova, Jana, Vocka, Michal, CZECANCA Consortium, Chenevix-Trench, Georgia, Pharoah, Paul DP, Antoniou, Antonis C, Goldgar, David E, Spurdle, Amanda B, Michailidou, Kyriaki, Consortium of Investigators of Modifiers of BRCA1/2, and Evidence-based Network for the Interpretation of Germline Mutant Alleles Consortium

Abstract

BackgroundThe distribution of ovarian tumour characteristics differs between germline BRCA1 and BRCA2 pathogenic variant carriers and non-carriers. In this study, we assessed the utility of ovarian tumour characteristics as predictors of BRCA1 and BRCA2 variant pathogenicity, for application using the American College of Medical Genetics and the Association for Molecular Pathology (ACMG/AMP) variant classification system.MethodsData for 10,373 ovarian cancer cases, including carriers and non-carriers of BRCA1 or BRCA2 pathogenic variants, were collected from unpublished international cohorts and consortia and published studies. Likelihood ratios (LR) were calculated for the association of ovarian cancer histology and other characteristics, with BRCA1 and BRCA2 variant pathogenicity. Estimates were aligned to ACMG/AMP code strengths (supporting, moderate, strong).ResultsNo histological subtype provided informative ACMG/AMP evidence in favour of BRCA1 and BRCA2 variant pathogenicity. Evidence against variant pathogenicity was estimated for the mucinous and clear cell histologies (supporting) and borderline cases (moderate). Refined associations are provided according to tumour grade, invasion and age at diagnosis.ConclusionsWe provide detailed estimates for predicting BRCA1 and BRCA2 variant pathogenicity based on ovarian tumour characteristics. This evidence can be combined with other variant information under the ACMG/AMP classification system, to improve classification and carrier clinical management.

Published
2023

4. No evidence that GATA3 rs570613 SNP modifies breast cancer risk

Author

Johnatty, Sharon E., Couch, Fergus J., Fredericksen, Zachary, Tarrell, Robert, Spurdle, Amanda B., Beesley, Jonathan, Chen, Xiaoqing, Gschwantler-Kaulich, Daphne, Singer, Christian F., Fuerhauser, Christine, Fink-Retter, Anneliese, Domchek, Susan M., Nathanson, Katherine L., Pankratz, Vernon S., Lindor, Noralane M., Godwin, Andrew K., Caligo, Maria A., Hopper, John, Southey, Melissa C., Giles, Graham G., Justenhoven, Christina, Brauch, Hiltrud, Hamann, Ute, Ko, Yon-Dschun, Heikkinen, Tuomas, Aaltonen, Kirsimari, Aittomäki, Kristiina, Blomqvist, Carl, Nevanlinna, Heli, Hall, Per, Czene, Kamila, Liu, Jianjun, Peock, Susan, Cook, Margaret, Platte, Radka, Gareth Evans, D., Lalloo, Fiona, Eeles, Rosalind, Pichert, Gabriella, Eccles, Diana, Davidson, Rosemarie, Cole, Trevor, Cook, Jackie, Douglas, Fiona, Chu, Carol, Hodgson, Shirley, Paterson, Joan, Hogervorst, Frans B. L., Rookus, Matti A., Seynaeve, Caroline, Wijnen, Juul, Vreeswijk, Maaike, Ligtenberg, Marjolijn, van der Luijt, Rob B., van Os, Theo A. M., Gille, Hans J. P., Blok, Marinus J., Issacs, Claudine, Humphreys, Manjeet K., McGuffog, Lesley, Healey, Sue, Sinilnikova, Olga, Antoniou, Antonis C., Easton, Douglas F., Chenevix-Trench, Georgia, kConFab Investigators, AOCS Group, The Swedish BRCA1 and BRCA2 Study Collaborators, HEBON, and on behalf of the Breast Cancer Association Consortium and the Consortium of Investigators of Modifiers of BRCA1/2

Published
2009
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5. Genetic predisposition to mosaic Y chromosome loss in blood

Author

Thompson, Deborah J, Genovese, Giulio, Halvardson, Jonatan, Ulirsch, Jacob C, Wright, Daniel J, Terao, Chikashi, Davidsson, Olafur B, Day, Felix R, Sulem, Patrick, Jiang, Yunxuan, Danielsson, Marcus, Davies, Hanna, Dennis, Joe, Dunlop, Malcolm G, Easton, Douglas F, Fisher, Victoria A, Zink, Florian, Houlston, Richard S, Ingelsson, Martin, Kar, Siddhartha, Kerrison, Nicola D, Kinnersley, Ben, Kristjansson, Ragnar P, Law, Philip J, Li, Rong, Loveday, Chey, Mattisson, Jonas, McCarroll, Steven A, Murakami, Yoshinori, Murray, Anna, Olszewski, Pawel, Rychlicka-Buniowska, Edyta, Scott, Robert A, Thorsteinsdottir, Unnur, Tomlinson, Ian, Moghadam, Behrooz Torabi, Turnbull, Clare, Wareham, Nicholas J, Gudbjartsson, Daniel F, International Lung Cancer Consortium (INTEGRAL-ILCCO), Breast Cancer Association Consortium, Consortium Of Investigators Of Modifiers Of BRCA1/2, Endometrial Cancer Association Consortium, Ovarian Cancer Association Consortium, Prostate Cancer Association Group To Investigate Cancer Associated Alterations In The Genome (PRACTICAL) Consortium, Kidney Cancer GWAS Meta-Analysis Project, EQTLGen Consortium, Biobank-Based Integrative Omics Study (BIOS) Consortium, 23andMe Research Team, Kamatani, Yoichiro, Hoffmann, Eva R, Jackson, Steve P, Stefansson, Kari, Auton, Adam, Ong, Ken K, Machiela, Mitchell J, Loh, Po-Ru, Dumanski, Jan P, Chanock, Stephen J, Forsberg, Lars A, Perry, John RB, Thompson, Deborah [0000-0003-1465-5799], Wright, Daniel [0000-0003-3983-2093], Day, Felix [0000-0003-3789-7651], Dennis, Joe [0000-0003-4591-1214], Easton, Douglas [0000-0003-2444-3247], Wareham, Nicholas [0000-0003-1422-2993], Jackson, Stephen [0000-0001-9317-7937], Ong, Kenneth [0000-0003-4689-7530], Perry, John [0000-0001-6483-3771], and Apollo - University of Cambridge Repository

Subjects
Adult, Genetic Markers, Male, 0303 health sciences, Chromosomes, Human, Y, Mosaicism, Computational Biology, Middle Aged, Genomic Instability, United Kingdom, 3. Good health, 03 medical and health sciences, 0302 clinical medicine, 030220 oncology & carcinogenesis, Neoplasms, Databases, Genetic, Leukocytes, Humans, Female, Genetic Predisposition to Disease, Chromosome Deletion, 030304 developmental biology, Aged
Abstract

Mosaic loss of chromosome Y (LOY) in circulating white blood cells is the most common form of clonal mosaicism1-5, yet our knowledge of the causes and consequences of this is limited. Here, using a computational approach, we estimate that 20% of the male population represented in the UK Biobank study (n = 205,011) has detectable LOY. We identify 156 autosomal genetic determinants of LOY, which we replicate in 757,114 men of European and Japanese ancestry. These loci highlight genes that are involved in cell-cycle regulation and cancer susceptibility, as well as somatic drivers of tumour growth and targets of cancer therapy. We demonstrate that genetic susceptibility to LOY is associated with non-haematological effects on health in both men and women, which supports the hypothesis that clonal haematopoiesis is a biomarker of genomic instability in other tissues. Single-cell RNA sequencing identifies dysregulated expression of autosomal genes in leukocytes with LOY and provides insights into why clonal expansion of these cells may occur. Collectively, these data highlight the value of studying clonal mosaicism to uncover fundamental mechanisms that underlie cancer and other ageing-related diseases.

Published
2019
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6. Ovarian cancer susceptibility alleles and risk of ovarian cancer in BRCA1 and BRCA2 mutation carriers

Author

Ramus, Susan J., Antoniou, Antonis C., Kuchenbaecker, Karoline B., Penny, Soucy, Jonathan, Beesley, Xiaoqing, Chen, Lesley, Mcguffog, Sinilnikova, Olga M., Sue, Healey, Daniel, Barrowdale, Andrew, Lee, Mads, Thomassen, Anne Marie Gerdes, Kruse, Torben A., Uffe Birk Jensen, Anne Bine Skytte, Caligo, Maria A., Annelie, Liljegren, Annika, Lindblom, Hakan, Olsson, Ulf, Kristoffersson, Marie Stenmark Askmalm, Swe Brca Melin, B., Swe, Brca, Domchek, Susan M., Domchek, Sm, Nathanson, Katherine L., Rebbeck, Timothy R., Anna, Jakubowska, Jan, Lubinski, Katarzyna, Jaworska, Katarzyna, Durda, Elzbieta, Złowocka, Jacek, Gronwald, Tomasz, Huzarski, Tomasz, Byrski, Cezary, Cybulski, Aleksandra Toloczko Grabarek, Ana, Osorio, Javier, Benitez, Mercedes, Duran, Maria Isabel Tejada, Ute, Hamann, Matti, Rookus, Van Leeuwen, Flora E., Aalfs, Cora M., Meijers Heijboer, Hanne E. J., Van Asperen, Christi J., Van Roozendaal, K. E. P., Nicoline, Hoogerbrugge, Collee, Margriet J., Margriet Collee, J., Mieke, Kriege, Hebon Van Der Luijt, R. B., Embrace, Embrace, Hebon, Susan, Peock, Debra, Frost, Ellis, Steve D., Radka, Platte, Elena, Fineberg, Gareth Evans, D., Fiona, Lalloo, Chris, Jacobs, Ros, Eeles, Julian, Adlard, Rosemarie, Davidson, Diana, Eccles, Trevor, Cole, Jackie, Cook, Joan, Paterson, Fiona, Douglas, Carole, Brewer, Shirley, Hodgson, Morrison, Patrick J., Lisa, Walker, Porteous, Mary E., John Kennedy, M., Harsh, Pathak, Godwin, Andrew K., Dominique Stoppa Lyonnet, Virginie Caux Moncoutier, Antoine Pauw, D. E., De Pauw, A., Marion Gauthier Villars, Sylvie, Mazoyer, Melanie, Leone, Alain, Calender, Christine, Lasset, Valerie, Bonadona, Agnes, Hardouin, Pascaline, Berthet, Yves Jean Bignon, Nancy, Uhrhammer, Laurence, Faivre, Catherine, Loustalot, Gemo, Saundra, Buys, Mary, Daly, Buys, Daly, S., Alex, Miron, Beth, Terry M., Mary Beth Terry, Terry, M. B., Chung, Wendy K., Esther, John M., John, Em, Melissa, Southey, David, Goldgar, Singer, Christian F., Muy Kheng Tea, Georg, Pfeiler, Anneliese Fink Retter, Hansen, Thomas V. O., Hansen, Tv, Bent, Ejlertsen, Oskar Th Johannsson, Kenneth, Offit, Tomas, Kirchhoff, Gaudet, Mia M., Joseph, Vijai, Mark, Robson, Marion, Piedmonte, Kelly Anne Phillips, Linda Van Le, Hoffman, James S., Amanda Ewart Toland, Ewart Toland, A., Marco, Montagna, Silvia, Tognazzo, Evgeny, Imyanitov, Claudine, Isaacs, Issacs, C., Ramunas, Janavicius, Conxi, Lazaro, Ignacio, Blanco, Eva, Tornero, Matilde, Navarro, Moysich, Kirsten B., Karlan, Beth Y., Jenny, Gross, Edith, Olah, Tibor, Vaszko, Soo Hwang Teo, Ganz, Patricia A., Beattie, Mary S., Dorfling, Cecelia M., Van Rensburg, Elizabeth J., Orland, Diez, Ava, Kwong, Schmutzler, Rita K., Barbara, Wappenschmidt, Christoph, Engel, Alfons, Meindl, Nina, Ditsch, Norbert, Arnold, Simone, Heidemann, Dieter, Niederacher, Sabine Preisler Adams, Dorotehea, Gadzicki, Raymonda Varon Mateeva, Helmut, Deissler, Andrea, Gehrig, Christian, Sutter, Karin, Kast, Britta, Fiebig, Dieter, Schafer, Trinidad, Caldes, Miguel De La Hoya, Heli, Nevanlinna, Kristiina, Aittomaki, Marie, Plante, Kconfab Spurdle, A. B., Kconfab, Neuhausen, Susan L., Neuhausen, Sl, Yuan Chun Ding, Xianshu, Wang, Noralane, Lindor, Zachary, Fredericksen, Shane Pankratz, V., Paolo, Peterlongo, Siranoush, Manoukian, Bernard, Peissel, Daniela, Zaffaroni, Bernardo, Bonanni, Loris, Bernard, Riccardo, Dolcetti, Laura, Papi, Ottini, Laura, Paolo, Radice, Greene, Mark H., Mai, Phuong L., Andrulis, Irene L., Gord, Glendon, Ocgn Ozcelik, H., Ocgn, Pharoah, Paul D. P., Pharoah, Pd, Gayther, Simon A., Jacques, Simard, Easton, Douglas F., Couch, Fergus J., Georgia Chenevix Trench, Behalf Of The Consortium Of Investigators Of Modifiers Of Brca1/2, O. N., Biostatistiques santé, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Human Genetics, CCA -Cancer Center Amsterdam, ARD - Amsterdam Reproduction and Development, Universitat de Barcelona, Genetica & Celbiologie, MUMC+: DA KG Lab Centraal Lab (9), RS: CARIM School for Cardiovascular Diseases, RS: GROW - School for Oncology and Reproduction, and Clinical Genetics

Subjects
Oncology, endocrine system diseases, [SDV]Life Sciences [q-bio], Càncer d'ovari, DCN PAC - Perception action and control, Cohort Studies, Breast cancer, 0302 clinical medicine, brca1, brca2, Odds Ratio, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, Ovarian Neoplasms, Genetics, 0303 health sciences, education.field_of_study, BRCA1 Protein, Hazard ratio, Middle Aged, 3. Good health, ovarian cancer, 030220 oncology & carcinogenesis, Female, Adult, Heterozygote, medicine.medical_specialty, Hereditary cancer and cancer-related syndromes Genetics and epigenetic pathways of disease [ONCOL 1], Population, Single-nucleotide polymorphism, Biology, Ovarian Neoplasms - genetics, Polymorphism, Single Nucleotide, Article, Càncer de mama, 03 medical and health sciences, Germline mutation, SDG 3 - Good Health and Well-being, Translational research [ONCOL 3], Ovarian cancer, Internal medicine, medicine, Humans, Genetic Predisposition to Disease, ddc:610, Genetics and epigenetic pathways of disease Translational research [NCMLS 6], education, Retrospective Studies, 030304 developmental biology, BRCA2 Protein, Hereditary cancer and cancer-related syndromes [ONCOL 1], association, Retrospective cohort study, snp, Odds ratio, BRCA1 Protein - genetics, medicine.disease, BRCA2 Protein - genetics, Mutation
Abstract

Germline mutations in BRCA1 and BRCA2 are associated with increased risks of breast and ovarian cancer. A genome-wide association study (GWAS) identified six alleles associated with risk of ovarian cancer for women in the general population. We evaluated four of these loci as potential modifiers of ovarian cancer risk for BRCA1 and BRCA2 mutation carriers. Four single-nucleotide polymorphisms (SNPs), rs10088218 (at 8q24), rs2665390 (at 3q25), rs717852 (at 2q31), and rs9303542 (at 17q21), were genotyped in 12,599 BRCA1 and 7,132 BRCA2 carriers, including 2,678 ovarian cancer cases. Associations were evaluated within a retrospective cohort approach. All four loci were associated with ovarian cancer risk in BRCA2 carriers; rs10088218 per-allele hazard ratio (HR) = 0.81 (95% CI: 0.67-0.98) P-trend = 0.033, rs2665390 HR = 1.48 (95% CI: 1.21-1.83) P-trend = 1.8 x 10(-4), rs717852 HR = 1.25 (95% CI: 1.10-1.42) P-trend = 6.6 x 10(-4), rs9303542 HR = 1.16 (95% CI: 1.02-1.33) P-trend = 0.026. Two loci were associated with ovarian cancer risk in BRCA1 carriers; rs10088218 per-allele HR = 0.89 (95% CI: 0.81-0.99) P-trend = 0.029, rs2665390 HR = 1.25 (95% CI: 1.10-1.42) P-trend = 6.1 x 10(-4). The HR estimates for the remaining loci were consistent with odds ratio estimates for the general population. The identification of multiple loci modifying ovarian cancer risk may be useful for counseling women with BRCA1 and BRCA2 mutations regarding their risk of ovarian cancer., link_to_OA_fulltext

Published
2012
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7. An original phylogenetic approach identified mitochondrial haplogroup T1a1 as inversely associated with breast cancer risk in BRCA2 mutation carriers

Author

Teulé-Vega, Àlex, Lázaro García, Conxi, Blanco Guillermo, Ignacio, Valle Domínguez, Jesús del, Collaborative Oncological Gene-environment Study (COGS), Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA), Epidemiological Study of BRCA1 and BRCA2 Mutation Carriers (EMBRACE), Hereditary Breast and Ovarian Cancer Research Group Netherlands (HEBON), Genetic Modifiers of Cancer Risk in BRCA1/2 Mutation Carriers (GEMO), and CONsorzio Studi ITaliani sui Tumori Ereditari Alla Mammella, Italy (CONSIT Team)

Subjects
Breast cancer, ADN mitocondrial, Mitochondrial DNA, Càncer de mama
Abstract

Introduction: Individuals carrying pathogenic mutations in the BRCA1 and BRCA2 genes have a high lifetime risk of breast cancer. BRCA1 and BRCA2 are involved in DNA double-strand break repair, DNA alterations that can be caused by exposure to reactive oxygen species, a main source of which are mitochondria. Mitochondrial genome variations affect electron transport chain efficiency and reactive oxygen species production. Individuals with different mitochondrial haplogroups differ in their metabolism and sensitivity to oxidative stress. Variability in mitochondrial genetic background can alter reactive oxygen species production, leading to cancer risk. In the present study, we tested the hypothesis that mitochondrial haplogroups modify breast cancer risk in BRCA1/2 mutation carriers. Methods: We genotyped 22,214 (11,421 affected, 10,793 unaffected) mutation carriers belonging to the Consortium of Investigators of Modifiers of BRCA1/2 for 129 mitochondrial polymorphisms using the iCOGS array. Haplogroup inference and association detection were performed using a phylogenetic approach. ALTree was applied to explore the reference mitochondrial evolutionary tree and detect subclades enriched in affected or unaffected individuals. Results: We discovered that subclade T1a1 was depleted in affected BRCA2 mutation carriers compared with the rest of clade T (hazard ratio (HR) = 0.55; 95% confidence interval (CI), 0.34 to 0.88; P = 0.01). Compared with the most frequent haplogroup in the general population (that is, H and T clades), the T1a1 haplogroup has a HR of 0.62 (95% CI, 0.40 to 0.95; P = 0.03). We also identified three potential susceptibility loci, including G13708A/rs28359178, which has demonstrated an inverse association with familial breast cancer risk. Conclusions: This study illustrates how original approaches such as the phylogeny-based method we used can empower classical molecular epidemiological studies aimed at identifying association or risk modification effects.

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