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99 Publications visible to you, out of a total of 99
Evidence for SMAD3 as a modifier of breast cancer risk in BRCA2 mutation carriers
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

INTRODUCTION Current attempts to identify genetic modifiers of BRCA1 and BRCA2 associated risk have focused on a candidate gene approach, based on knowledge of gene functions, or the development of …f large genome-wide association studies. In this study, we evaluated 24 SNPs tagged to 14 candidate genes derived through a novel approach that analysed gene expression differences to prioritise candidate modifier genes for association studies. METHODS We successfully genotyped 24 SNPs in a cohort of up to 4,724 BRCA1 and 2,693 BRCA2 female mutation carriers from 15 study groups and assessed whether these variants were associated with risk of breast cancer in BRCA1 and BRCA2 mutation carriers. RESULTS SNPs in five of the 14 candidate genes showed evidence of association with breast cancer risk for BRCA1 or BRCA2 carriers (P \textless 0.05). Notably, the minor alleles of two SNPs (rs7166081 and rs3825977) in high linkage disequilibrium (r^2 = 0.77), located at the SMAD3 locus (15q22), were each associated with increased breast cancer risk for BRCA2 mutation carriers (relative risk = 1.25, 95% confidence interval = 1.07 to 1.45, P(trend) = 0.004; and relative risk = 1.20, 95% confidence interval = 1.03 to 1.40, P(trend) = 0.018). CONCLUSIONS This study provides evidence that the SMAD3 gene, which encodes a key regulatory protein in the transforming growth factor beta signalling pathway and is known to interact directly with BRCA2, may contribute to increased risk of breast cancer in BRCA2 mutation carriers. This finding suggests that genes with expression associated with BRCA1 and BRCA2 mutation status are enriched for the presence of common genetic modifiers of breast cancer risk in these populations.

Authors: Logan C. Walker, Zachary S. Fredericksen, Xianshu Wang, Robert Tarrell, Vernon S. Pankratz, Noralane M. Lindor, Jonathan Beesley, Sue Healey, Xiaoqing Chen, Dominique Stoppa-Lyonnet, Carole Tirapo, Sophie Giraud, Sylvie Mazoyer, Danièle Muller, Jean-Pierre Fricker, Capucine Delnatte, Rita K. Schmutzler, Barbara Wappenschmidt, Christoph Engel, Ines Schönbuchner, Helmut Deissler, Alfons Meindl, Frans B. Hogervorst, Martijn Verheus, Maartje J. Hooning, Ans Mw van den Ouweland, Marcel R. Nelen, Margreet Gem Ausems, Cora M. Aalfs, Christi J. van Asperen, Peter Devilee, Monique M. Gerrits, Quinten Waisfisz, Csilla I. Szabo, Douglas F. Easton, Susan Peock, Margaret Cook, Clare T. Oliver, Debra Frost, Patricia Harrington, D. Gareth Evans, Fiona Lalloo, Ros Eeles, Louise Izatt, Carol Chu, Rosemarie Davidson, Diana Eccles, Kai-Ren Ong, Jackie Cook, Tim Rebbeck, Katherine L. Nathanson, Susan M. Domchek, Christian F. Singer, Daphne Gschwantler-Kaulich, Anne-Catharina Dressler, Georg Pfeiler, Andrew K. Godwin, Tuomas Heikkinen, Heli Nevanlinna, Bjarni A. Agnarsson, Maria Adelaide Caligo, Håkan Olsson, Ulf Kristoffersson, Annelie Liljegren, Brita Arver, Per Karlsson, Beatrice Melin, Olga M. Sinilnikova, Lesley McGuffog, Antonis C. Antoniou, Georgia Chenevix-Trench, Amanda B. Spurdle, Fergus J. Couch

Date Published: 1st Dec 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

Association of the variants CASP8 D302H and CASP10 V410I with breast and ovarian cancer risk in BRCA1 and BRCA2 mutation carriers
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

BACKGROUND The genes caspase-8 (CASP8) and caspase-10 (CASP10) functionally cooperate and play a key role in the initiation of apoptosis. Suppression of apoptosis is one of the major mechanisms underlying …g the origin and progression of cancer. Previous case-control studies have indicated that the polymorphisms CASP8 D302H and CASP10 V410I are associated with a reduced risk of breast cancer in the general population. METHODS To evaluate whether the CASP8 D302H (CASP10 V410I) polymorphisms modify breast or ovarian cancer risk in BRCA1 and BRCA2 mutation carriers, we analyzed 7,353 (7,227) subjects of white European origin provided by 19 (18) study groups that participate in the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). A weighted cohort approach was used to estimate hazard ratios (HR) and 95% confidence intervals (95% CI). RESULTS The minor allele of CASP8 D302H was significantly associated with a reduced risk of breast cancer (per-allele HR, 0.85; 95% CI, 0.76-0.97; P(trend) = 0.011) and ovarian cancer (per-allele HR, 0.69; 95% CI, 0.53-0.89; P(trend) = 0.004) for BRCA1 but not for BRCA2 mutation carriers. The CASP10 V410I polymorphism was not associated with breast or ovarian cancer risk for BRCA1 or BRCA2 mutation carriers. CONCLUSIONS CASP8 D302H decreases breast and ovarian cancer risk for BRCA1 mutation carriers but not for BRCA2 mutation carriers. IMPACT The combined application of these and other recently identified genetic risk modifiers could in the future allow better individual risk calculation and could aid in the individualized counseling and decision making with respect to preventive options in BRCA1 mutation carriers.

Authors: Christoph Engel, Beatrix Versmold, Barbara Wappenschmidt, Jacques Simard, Douglas F. Easton, Susan Peock, Margaret Cook, Clare Oliver, Debra Frost, Rebecca Mayes, D. Gareth Evans, Rosalind Eeles, Joan Paterson, Carole Brewer, Lesley McGuffog, Antonis C. Antoniou, Dominique Stoppa-Lyonnet, Olga M. Sinilnikova, Laure Barjhoux, Marc Frenay, Cécile Michel, Dominique Leroux, Helene Dreyfus, Christine Toulas, Laurence Gladieff, Nancy Uhrhammer, Yves-Jean Bignon, Alfons Meindl, Norbert Arnold, Raymonda Varon-Mateeva, Dieter Niederacher, Sabine Preisler-Adams, Karin Kast, Helmut Deissler, Christian Sutter, Dorothea Gadzicki, Georgia Chenevix-Trench, Amanda B. Spurdle, Xiaoqing Chen, Jonathan Beesley, Håkan Olsson, Ulf Kristoffersson, Hans Ehrencrona, Annelie Liljegren, Rob B. van der Luijt, Theo A. van Os, Flora E. van Leeuwen, Susan M. Domchek, Timothy R. Rebbeck, Katherine L. Nathanson, Ana Osorio, Teresa Ramón y Cajal, Irene Konstantopoulou, Javier Benítez, Eitan Friedman, Bella Kaufman, Yael Laitman, Phuong L. Mai, Mark H. Greene, Heli Nevanlinna, Kristiina Aittomäki, Csilla I. Szabo, Trinidad Caldes, Fergus J. Couch, Irene L. Andrulis, Andrew K. Godwin, Ute Hamann, Rita K. Schmutzler

Date Published: 8th Nov 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

Screening in women at elevated risk for breast cancer
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract

Not specified

Authors: Rita Katharina Schmutzler, Christoph Engel, Ingrid Schreer

Date Published: 20th Oct 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

A locus on 19p13 modifies risk of breast cancer in BRCA1 mutation carriers and is associated with hormone receptor-negative breast cancer in the general population
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

Germline BRCA1 mutations predispose to breast cancer. To identify genetic modifiers of this risk, we performed a genome-wide association study in 1,193 individuals with BRCA1 mutations who were diagnosed … with invasive breast cancer under age 40 and 1,190 BRCA1 carriers without breast cancer diagnosis over age 35. We took forward 96 SNPs for replication in another 5,986 BRCA1 carriers (2,974 individuals with breast cancer and 3,012 unaffected individuals). Five SNPs on 19p13 were associated with breast cancer risk (P(trend) = 2.3 \times 10^-^9 to P(trend) = 3.9 \times 10^-^7), two of which showed independent associations (rs8170, hazard ratio (HR) = 1.26, 95% CI 1.17-1.35; rs2363956 HR = 0.84, 95% CI 0.80-0.89). Genotyping these SNPs in 6,800 population-based breast cancer cases and 6,613 controls identified a similar association with estrogen receptor-negative breast cancer (rs2363956 per-allele odds ratio (OR) = 0.83, 95% CI 0.75-0.92, P(trend) = 0.0003) and an association with estrogen receptor-positive disease in the opposite direction (OR = 1.07, 95% CI 1.01-1.14, P(trend) = 0.016). The five SNPs were also associated with triple-negative breast cancer in a separate study of 2,301 triple-negative cases and 3,949 controls (P(trend) = 1 \times 10^-^7) to P(trend) = 8 \times 10^-^5; rs2363956 per-allele OR = 0.80, 95% CI 0.74-0.87, P(trend) = 1.1 \times 10^-^7

Authors: Antonis C. Antoniou, Xianshu Wang, Zachary S. Fredericksen, Lesley McGuffog, Robert Tarrell, Olga M. Sinilnikova, Sue Healey, Jonathan Morrison, Christiana Kartsonaki, Timothy Lesnick, Maya Ghoussaini, Daniel Barrowdale, Susan Peock, Margaret Cook, Clare Oliver, Debra Frost, Diana Eccles, D. Gareth Evans, Ros Eeles, Louise Izatt, Carol Chu, Fiona Douglas, Joan Paterson, Dominique Stoppa-Lyonnet, Claude Houdayer, Sylvie Mazoyer, Sophie Giraud, Christine Lasset, Audrey Remenieras, Olivier Caron, Agnès Hardouin, Pascaline Berthet, Frans B. L. Hogervorst, Matti A. Rookus, Agnes Jager, Ans van den Ouweland, Nicoline Hoogerbrugge, Rob B. van der Luijt, Hanne Meijers-Heijboer, Encarna B. Gómez García, Peter Devilee, Maaike P. G. Vreeswijk, Jan Lubinski, Anna Jakubowska, Jacek Gronwald, Tomasz Huzarski, Tomasz Byrski, Bohdan Górski, Cezary Cybulski, Amanda B. Spurdle, Helene Holland, David E. Goldgar, Esther M. John, John L. Hopper, Melissa Southey, Saundra S. Buys, Mary B. Daly, Mary-Beth Terry, Rita K. Schmutzler, Barbara Wappenschmidt, Christoph Engel, Alfons Meindl, Sabine Preisler-Adams, Norbert Arnold, Dieter Niederacher, Christian Sutter, Susan M. Domchek, Katherine L. Nathanson, Timothy Rebbeck, Joanne L. Blum, Marion Piedmonte, Gustavo C. Rodriguez, Katie Wakeley, John F. Boggess, Jack Basil, Stephanie V. Blank, Eitan Friedman, Bella Kaufman, Yael Laitman, Roni Milgrom, Irene L. Andrulis, Gord Glendon, Hilmi Ozcelik, Tomas Kirchhoff, Joseph Vijai, Mia M. Gaudet, David Altshuler, Candace Guiducci, Niklas Loman, Katja Harbst, Johanna Rantala, Hans Ehrencrona, Anne-Marie Gerdes, Mads Thomassen, Lone Sunde, Paolo Peterlongo, Siranoush Manoukian, Bernardo Bonanni, Alessandra Viel, Paolo Radice, Trinidad Caldes, Miguel de La Hoya, Christian F. Singer, Anneliese Fink-Retter, Mark H. Greene, Phuong L. Mai, Jennifer T. Loud, Lucia Guidugli, Noralane M. Lindor, Thomas v. O. Hansen, Finn C. Nielsen, Ignacio Blanco, Conxi Lazaro, Judy Garber, Susan J. Ramus, Simon A. Gayther, Catherine Phelan, Stephen Narod, Csilla I. Szabo, Javier Benitez, Ana Osorio, Heli Nevanlinna, Tuomas Heikkinen, Maria A. Caligo, Mary S. Beattie, Ute Hamann, Andrew K. Godwin, Marco Montagna, Cinzia Casella, Susan L. Neuhausen, Beth Y. Karlan, Nadine Tung, Amanda E. Toland, Jeffrey Weitzel, Olofunmilayo Olopade, Jacques Simard, Penny Soucy, Wendy S. Rubinstein, Adalgeir Arason, Gad Rennert, Nicholas G. Martin, Grant W. Montgomery, Jenny Chang-Claude, Dieter Flesch-Janys, Hiltrud Brauch, Gianluca Severi, Laura Baglietto, Angela Cox, Simon S. Cross, Penelope Miron, Sue M. Gerty, William Tapper, Drakoulis Yannoukakos, George Fountzilas, Peter A. Fasching, Matthias W. Beckmann, Isabel Dos Santos Silva, Julian Peto, Diether Lambrechts, Robert Paridaens, Thomas Rüdiger, Asta Försti, Robert Winqvist, Katri Pylkäs, Robert B. Diasio, Adam M. Lee, Jeanette Eckel-Passow, Celine Vachon, Fiona Blows, Kristy Driver, Alison Dunning, Paul P. D. Pharoah, Kenneth Offit, V. Shane Pankratz, Hakon Hakonarson, Georgia Chenevix-Trench, Douglas F. Easton, Fergus J. Couch

Date Published: 1st Oct 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

Common variants associated with breast cancer in genome-wide association studies are modifiers of breast cancer risk in BRCA1 and BRCA2 mutation carriers
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

Recent studies have identified single nucleotide polymorphisms (SNPs) that significantly modify breast cancer risk in BRCA1 and BRCA2 mutation carriers. Since these risk modifiers were originally … identified as genetic risk factors for breast cancer in genome-wide association studies (GWASs), additional risk modifiers for BRCA1 and BRCA2 may be identified from promising signals discovered in breast cancer GWAS. A total of 350 SNPs identified as candidate breast cancer risk factors (P \textless 1 x 10(-3)) in two breast cancer GWAS studies were genotyped in 3451 BRCA1 and 2006 BRCA2 mutation carriers from nine centers. Associations with breast cancer risk were assessed using Cox models weighted for penetrance. Eight SNPs in BRCA1 carriers and 12 SNPs in BRCA2 carriers, representing an enrichment over the number expected, were significantly associated with breast cancer risk (P(trend) \textless 0.01). The minor alleles of rs6138178 in SNRPB and rs6602595 in CAMK1D displayed the strongest associations in BRCA1 carriers (HR = 0.78, 95% CI: 0.69-0.90, P(trend) = 3.6 x 10(-4) and HR = 1.25, 95% CI: 1.10-1.41, P(trend) = 4.2 x 10(-4)), whereas rs9393597 in LOC134997 and rs12652447 in FBXL7 showed the strongest associations in BRCA2 carriers (HR = 1.55, 95% CI: 1.25-1.92, P(trend) = 6 x 10(-5) and HR = 1.37, 95% CI: 1.16-1.62, P(trend) = 1.7 x 10(-4)). The magnitude and direction of the associations were consistent with the original GWAS. In subsequent risk assessment studies, the loci appeared to interact multiplicatively for breast cancer risk in BRCA1 and BRCA2 carriers. Promising candidate SNPs from GWAS were identified as modifiers of breast cancer risk in BRCA1 and BRCA2 carriers. Upon further validation, these SNPs together with other genetic and environmental factors may improve breast cancer risk assessment in these populations.

Authors: Xianshu Wang, V. Shane Pankratz, Zachary Fredericksen, Robert Tarrell, Mary Karaus, Lesley McGuffog, Paul D. P. Pharaoh, Bruce A. J. Ponder, Alison M. Dunning, Susan Peock, Margaret Cook, Clare Oliver, Debra Frost, Olga M. Sinilnikova, Dominique Stoppa-Lyonnet, Sylvie Mazoyer, Claude Houdayer, Frans B. L. Hogervorst, Maartje J. Hooning, Marjolijn J. Ligtenberg, Amanda Spurdle, Georgia Chenevix-Trench, Rita K. Schmutzler, Barbara Wappenschmidt, Christoph Engel, Alfons Meindl, Susan M. Domchek, Katherine L. Nathanson, Timothy R. Rebbeck, Christian F. Singer, Daphne Gschwantler-Kaulich, Catherina Dressler, Anneliese Fink, Csilla I. Szabo, Michal Zikan, Lenka Foretova, Kathleen Claes, Gilles Thomas, Robert N. Hoover, David J. Hunter, Stephen J. Chanock, Douglas F. Easton, Antonis C. Antoniou, Fergus J. Couch

Date Published: 15th Jul 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

Germline mutations in breast and ovarian cancer pedigrees establish RAD51C as a human cancer susceptibility gene
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

Germline mutations in a number of genes involved in the recombinational repair of DNA double-strand breaks are associated with predisposition to breast and ovarian cancer. RAD51C is essential for … homologous recombination repair, and a biallelic missense mutation can cause a Fanconi anemia-like phenotype. In index cases from 1,100 German families with gynecological malignancies, we identified six monoallelic pathogenic mutations in RAD51C that confer an increased risk for breast and ovarian cancer. These include two frameshift-causing insertions, two splice-site mutations and two nonfunctional missense mutations. The mutations were found exclusively within 480 pedigrees with the occurrence of both breast and ovarian tumors (BC/OC; 1.3%) and not in 620 pedigrees with breast cancer only or in 2,912 healthy German controls. These results provide the first unambiguous evidence of highly penetrant mutations associated with human cancer in a RAD51 paralog and support the ’common disease, rare allele’ hypothesis.

Authors: Alfons Meindl, Heide Hellebrand, Constanze Wiek, Verena Erven, Barbara Wappenschmidt, Dieter Niederacher, Marcel Freund, Peter Lichtner, Linda Hartmann, Heiner Schaal, Juliane Ramser, Ellen Honisch, Christian Kubisch, Hans E. Wichmann, Karin Kast, Helmut Deissler, Christoph Engel, Bertram Müller-Myhsok, Kornelia Neveling, Marion Kiechle, Christopher G. Mathew, Detlev Schindler, Rita K. Schmutzler, Helmut Hanenberg

Date Published: 1st May 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

A BRCA1 promoter variant (rs11655505) and breast cancer risk
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

BACKGROUND A study of Chinese women recently suggested that the minor allele of rs11655505 in the BRCA1 promoter (c.-2265C–\textgreaterT) increases promoter activity and has a protective effect on …n breast cancer risk. METHODS We genotyped rs11655505 in 2912 female breast cancer cases and 2783 unaffected female controls from four Caucasian breast cancer studies. RESULTS No evidence for an association between rs11655505 and breast cancer risk was found. CONCLUSIONS Our study failed to confirm a role of rs11655505 in breast cancer risk. Larger studies are necessary to determine if there is a weak association between this SNP and breast cancer risk.

Authors: Paolo Verderio, Sara Pizzamiglio, Melissa C. Southey, Amanda B. Spurdle, John L. Hopper, Xiaoqing Chen, Jonathan Beesley, Rita K. Schmutzler, Christoph Engel, Barbara Burwinkel, Peter Bugert, Filomena Ficarazzi, Siranoush Manoukian, Monica Barile, Barbara Wappenschmidt, Georgia Chenevix-Trench, Paolo Radice, Paolo Peterlongo

Date Published: 22nd Apr 2010

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

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