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Ferreyra Y, Rosas G, Cock-Rada AM, Araujo J, Bravo L, Doimi F, Casas J, Clavo MDLÁ, Pinto JA, Belmar-López C. Landscape of germline BRCA1/BRCA2 variants in breast and ovarian cancer in Peru. Front Oncol 2023; 13:1227864. [PMID: 37664050 PMCID: PMC10470619 DOI: 10.3389/fonc.2023.1227864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/27/2023] [Indexed: 09/05/2023] Open
Abstract
Background There is an increasing amount of data from Latin America on the characterization of BRCA variants; however, there is limited information from Peru. We conducted a retrospective study to describe germline pathogenic/likely pathogenic(P/LP) variants and variants of uncertain/unknown significance (VUS) in the BRCA1 and BRCA2 genes in Peru, in patients with breast and ovarian cancer, candidates for treatment with poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitors. Methods The patients were evaluated during the period 2019-2021. Genomic DNA was isolated from peripheral blood samples and targeted sequencing was performed using the Ampliseq BRCA panel. Genetic variant interpretation was carried out in accordance with the recommendations of the American College of Medical Genetics and ClinVar. During this period, 525 patients (143 with breast cancer and 382 with ovarian cancer) were studied. Results We found that 14.7% (21/143) of breast cancer patients and 20.7% (79/382) of ovarian cancer patients were carriers of P/LP variants in BRCA1/2. The most frequent pathogenic variants detected in BRCA1 were c.2105dupT (BIC: 2224insT, n=12, 18.75%), c.68_69delAG (BIC: 185delAG, n=6, 9.38%), c.140G>T and c.815_824dupAGCCATGTGG (n=5, 7.81%), while in BRCA2 were c.8023A>G (n=6, 16.67%), c.6024dupG (BIC: 6252insG, n=4, 11.11%), and c.9235delG (BIC: 9463delG, n=3, 8.33%). Regarding VUS, we found that 6.99% (10/143) of breast cancer patients and 7.33% (28/382) of ovarian cancer patients were carriers of a VUS in BRCA1/2. For BRCA1, the most frequent VUS was c.93C>G (n=2), and for BRCA2, c.5465A>T (n=4), c.3101T>C (n=3), c.205C>A and c.437T>C (n=2). Conclusion We found a frequency of 14.7% germline mutations in breast cancer patients and 20.7% in ovarian cancer patients. The most recurrent mutations were BRCA1 c.2105dupT and BRCA2 c.8023A>G. We found that BRCA2 c.8023A>G, c.6024dupG, and c.9235delG were not previously reported in Peruvian patients. BRCA1 c.2344dupA is a novel mutation that has not been previously reported in any database. The frequency of VUS in our cohort was 7.2%.
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Affiliation(s)
- Yomali Ferreyra
- Departamento de Bioingeniería, Universidad de Ingenieria y Tecnología, Lima, Peru
| | - Gina Rosas
- Departamento de Patología, Insituto Nacional de Enfermedades Neoplásicas, Lima, Peru
| | - Alicia M. Cock-Rada
- Departmento de Oncología Médica, Instituto de Cancerología Las Américas - Auna, Medellín, Colombia
| | - Jhajaira Araujo
- Centro de Investigación Básicas y traslacional, Auna Ideas, Lima, Peru
| | - Leny Bravo
- Escuela Profesional de Medicina Humana-Filial Ica, Universidad Privada San Juan Bautista, Ica, Peru
| | | | | | | | - Joseph A. Pinto
- Centro de Investigación Básicas y traslacional, Auna Ideas, Lima, Peru
| | - Carolina Belmar-López
- Escuela Profesional de Medicina Humana-Filial Ica, Universidad Privada San Juan Bautista, Ica, Peru
- Oncogenomics, Auna, Lima, Peru
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Functional Analyses of Rare Germline Missense BRCA1 Variants Located within and outside Protein Domains with Known Functions. Genes (Basel) 2023; 14:genes14020262. [PMID: 36833189 PMCID: PMC9957003 DOI: 10.3390/genes14020262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
The BRCA1 protein is implicated in numerous important cellular processes to prevent genomic instability and tumorigenesis, and pathogenic germline variants predispose carriers to hereditary breast and ovarian cancer (HBOC). Most functional studies of missense variants in BRCA1 focus on variants located within the Really Interesting New Gene (RING), coiled-coil and BRCA1 C-terminal (BRCT) domains, and several missense variants in these regions have been shown to be pathogenic. However, the majority of these studies focus on domain specific assays, and have been performed using isolated protein domains and not the full-length BRCA1 protein. Furthermore, it has been suggested that BRCA1 missense variants located outside domains with known function are of no functional importance, and could be classified as (likely) benign. However, very little is known about the role of the regions outside the well-established domains of BRCA1, and only a few functional studies of missense variants located within these regions have been published. In this study, we have, therefore, functionally evaluated the effect of 14 rare BRCA1 missense variants considered to be of uncertain clinical significance, of which 13 are located outside the well-established domains and one within the RING domain. In order to investigate the hypothesis stating that most BRCA1 variants located outside the known protein domains are benign and of no functional importance, multiple protein assays including protein expression and stability, subcellular localisation and protein interactions have been performed, utilising the full-length protein to better mimic the native state of the protein. Two variants located outside the known domains (p.Met297Val and p.Asp1152Asn) and one variant within the RING domain (p.Leu52Phe) were found to make the BRCA1 protein more prone to proteasome-mediated degradation. In addition, two variants (p.Leu1439Phe and p.Gly890Arg) also located outside known domains were found to have reduced protein stability compared to the wild type protein. These findings indicate that variants located outside the RING, BRCT and coiled-coiled domains could also affect the BRCA1 protein function. For the nine remaining variants, no significant effects on BRCA1 protein functions were observed. Based on this, a reclassification of seven variants from VUS to likely benign could be suggested.
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BRCA1 Norway: comparison of classification for BRCA1 germline variants detected in families with suspected hereditary breast and ovarian cancer between different laboratories. Fam Cancer 2022; 21:389-398. [PMID: 34981296 PMCID: PMC9636114 DOI: 10.1007/s10689-021-00286-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 12/03/2021] [Indexed: 01/07/2023]
Abstract
Pathogenic germline variants in Breast cancer susceptibility gene 1 (BRCA1) predispose carriers to hereditary breast and ovarian cancer (HBOC). Through genetic testing of patients with suspected HBOC an increasing number of novel BRCA1 variants are discovered. This creates a growing need to determine the clinical significance of these variants through correct classification (class 1-5) according to established guidelines. Here we present a joint collection of all BRCA1 variants of class 2-5 detected in the four diagnostic genetic laboratories in Norway. The overall objective of the study was to generate an overview of all BRCA1 variants in Norway and unveil potential discrepancies in variant interpretation between the hospitals, serving as a quality control at the national level. For a subset of variants, we also assessed the change in classification over a ten-year period with increasing information available. In total, 463 unique BRCA1 variants were detected. Of the 126 variants found in more than one hospital, 70% were interpreted identically, while 30% were not. The differences in interpretation were mainly by one class (class 2/3 or 4/5), except for one larger discrepancy (class 3/5) which could affect the clinical management of patients. After a series of digital meetings between the participating laboratories to disclose the cause of disagreement for all conflicting variants, the discrepancy rate was reduced to 10%. This illustrates that variant interpretation needs to be updated regularly, and that data sharing and improved national inter-laboratory collaboration greatly improves the variant classification and hence increases the accuracy of cancer risk assessment.
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Billaud A, Chevalier LM, Augereau P, Frenel JS, Passot C, Campone M, Morel A. Functional pre-therapeutic evaluation by genome editing of variants of uncertain significance of essential tumor suppressor genes. Genome Med 2021; 13:174. [PMID: 34749799 PMCID: PMC8576946 DOI: 10.1186/s13073-021-00976-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 09/23/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Targeted therapies in oncology are promising but variants of uncertain significance (VUS) limit their use for clinical management and necessitate functional testing in vitro. Using BRCA1 and BRCA2 variants, which have consequences on PARP inhibitor sensitivity, and POLE variants, potential biomarkers of immunotherapy response, we developed a rapid functional assay based on CRISPR-Cas9 genome editing to determine the functional consequences of these variants having potentially direct implications on patients' access to targeted therapies. METHODS We first evaluated the functional impact of 26 BRCA1 and 7 BRCA2 variants by editing and comparing NGS results between the variant of interest and a silent control variant. Ten of these variants had already been classified as benign or pathogenic and were used as controls. Finally, we extended this method to the characterization of POLE VUS. RESULTS For the 23 variants that were unclassified or for which conflicting interpretations had been reported, 15 were classified as functionally normal and 6 as functionally abnormal. Another two variants were found to have intermediate consequences, both with potential impacts on splicing. We then compared these scores to the patients' responses to PARP inhibitors when possible. Finally, to prove the application of our method to the classification of variants from other tumor suppressor genes, we exemplified with three POLE VUS. Among them, two were classified with an intermediate functional impact and one was functionally abnormal. Eventually, four POLE variants previously classified in databases were also evaluated. However, we found evidence of a discordance with the classification, variant p.Leu424Val being found here functionally normal. CONCLUSIONS Our new rapid functional assay can be used to characterize the functional implication of BRCA1 and BRCA2 variants, giving patients whose variants were evaluated as functionally abnormal access to PARP inhibitor treatment. Retrospective analysis of patients' responses to PARP inhibitors, where accessible, was consistent with our functional score evaluation and confirmed the accuracy of our protocol. This method could potentially be extended to the classification of VUS from all essential tumor suppressor genes and can be performed within a timeframe compatible with clinical applications, thereby having a direct theranostic impact.
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Affiliation(s)
- Amandine Billaud
- Université d'Angers, Inserm, CRCINA, SFR ICAT, F-49000, Angers, France
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
| | - Louise-Marie Chevalier
- Université d'Angers, Inserm, CRCINA, SFR ICAT, F-49000, Angers, France
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
| | - Paule Augereau
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
| | - Jean-Sebastien Frenel
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
- Université de Nantes, Inserm, CRCINA, F-44000, Nantes, France
| | - Christophe Passot
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
| | - Mario Campone
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France
- Université de Nantes, Inserm, CRCINA, F-44000, Nantes, France
| | - Alain Morel
- Université d'Angers, Inserm, CRCINA, SFR ICAT, F-49000, Angers, France.
- Institut de Cancérologie de l'Ouest Nantes-Angers, F-49000, Angers, France.
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Adaniel C, Salinas F, Donaire JM, Bravo ME, Peralta O, Paredes H, Aliaga N, Sola A, Neira P, Behnke C, Rodriguez T, Torres S, Lopez F, Hurtado C. Non- BRCA1/2 Variants Detected in a High-Risk Chilean Cohort With a History of Breast and/or Ovarian Cancer. J Glob Oncol 2019; 5:1-14. [PMID: 31125277 PMCID: PMC6550094 DOI: 10.1200/jgo.18.00163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2019] [Indexed: 12/13/2022] Open
Abstract
METHODS Data were retrospectively collected from the registry of the High-Risk Breast and Ovarian Cancer Program at Clínica Las Condes, Santiago, Chile. Data captured included index case diagnosis, ancestry, family history, and genetic test results. RESULTS Three hundred fifteen individuals underwent genetic testing during the study period. The frequency of germline pathogenic and likely pathogenic variants in a breast or ovarian cancer predisposition gene was 20.3%. Of those patients who underwent testing with a panel of both high- and moderate-penetrance genes, 10.5% were found to have pathogenic or likely pathogenic variants in non-BRCA1/2 genes. CONCLUSION Testing for non-BRCA1 and -2 mutations may be clinically relevant for individuals who are suspected to have a hereditary breast or ovarian cancer syndrome in Chile. Comprehensive genetic testing of individuals who are at high risk is necessary to further characterize the genetic susceptibility to cancer in Chile.
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Affiliation(s)
- Christina Adaniel
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Francisca Salinas
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Juan Manuel Donaire
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Maria Eugenia Bravo
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Octavio Peralta
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Hernando Paredes
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Nuvia Aliaga
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Antonio Sola
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Paulina Neira
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Carolina Behnke
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Tulio Rodriguez
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Soledad Torres
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Francisco Lopez
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
| | - Claudia Hurtado
- Programa de Alto Riesgo de Cáncer de Mama y Ovario, Clínica Las Condes, Santiago, Chile
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Abstract
Hereditary breast and ovarian carcinomas are frequently caused by germline mutations of the BRCA1 and BRCA2 genes (BRCA1/2 syndromes) and are often less associated with other hereditary syndromes such as Li-Fraumeni and Peutz-Jeghers. The BRCA1/2 proteins have a special role in DNA repair. Therefore, loss of function due to mutation causes an accumulation of mutations in other genes and subsequent tumorigenesis at an early age. BRCA1/2 mutations are irregularly distributed over the length of the genes without hot spots, although special mutations are known. Breast and ovarian cancer occur far more frequently in women with BRCA1/2 germline mutations compared with the general population. Breast cancer occurs increasingly from the age of 30, ovarian cancer in BRCA1 syndrome from the age of 40 and BRCA2 from the age of 50. Suspicion of a BRCA syndrome should be prompted in the case of clustering of breast cancer in 1st degree relatives, in particular at a young age, if breast and ovarian cancer have occurred, and if cases of male breast cancer are known. Breast carcinomas with medullary differentiation seem to predominate in BRCA syndromes, but other carcinoma types may also occur. BRCA germline mutations seem to occur frequently in triple-negative breast carcinomas, whereas an association with ductal carcinoma in situ (DCIS) is rare. Ovarian carcinomas in BRCA syndromes are usually high-grade serous, mucinous carcinomas and borderline tumors are unusual. Pathology plays a special role within the multidisciplinary team in the recognition of patients with hereditary cancer syndromes.
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7
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Langerud J, Jarhelle E, Van Ghelue M, Ariansen SL, Iversen N. Trans-activation-based risk assessment of BRCA1 BRCT variants with unknown clinical significance. Hum Genomics 2018; 12:51. [PMID: 30458859 PMCID: PMC6247502 DOI: 10.1186/s40246-018-0183-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/08/2018] [Indexed: 11/30/2022] Open
Abstract
Background Deleterious variants in the tumour suppressor BRCA1 are known to cause hereditary breast and ovarian cancer syndrome (HBOC). Missense variants in BRCA1 pose a challenge in clinical care, as their effect on protein functionality often remains unknown. Many of the pathogenic missense variants found in BRCA1 are located in the BRCA1 C-terminal (BRCT) domains, domains that are known to be vital for key functions such as homologous recombination repair, protein-protein interactions and trans-activation (TA). We investigated the TA activity of 12 BRCA1 variants of unknown clinical significance (VUSs) located in the BRCT domains to aid in the classification of these variants. Results Twelve BRCA1 VUSs were investigated using a modified version of the dual luciferase TA activity assay (TA assay) that yielded increased sensitivity and sample throughput. Variants were classified according to American College of Medical Genetics and Genomics (ACMG) criteria using TA assay results and available data. In combining our TA-assay results and available data, in accordance with the ACMG guidelines for variant classification, we proposed the following variant classifications: c.5100A>G, c.5326C>T, c.5348T>C and c.5477A>T as likely benign (class 2) variants. c.5075A>C, c.5116G>A and c.5513T>G were likely pathogenic (class 4), whereas c.5096G>A likely represents a likely pathogenic variant with moderate penetrance. Variants c.5123C>T, c.5125G>A, c.5131A>C and c.5504G>A remained classified as VUSs (class 3). Conclusions The modified TA assay provides efficient risk assessment of rare missense variants found in the BRCA1 BRCT-domains. We also report that increased post-transfection incubation time yielded a significant increase in TA assay sensitivity. Electronic supplementary material The online version of this article (10.1186/s40246-018-0183-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jonas Langerud
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Elisabeth Jarhelle
- Department of Medical Genetics, Division of Child and Adolescent Health, University Hospital of North Norway, Tromsø, Norway
| | - Marijke Van Ghelue
- Department of Medical Genetics, Division of Child and Adolescent Health, University Hospital of North Norway, Tromsø, Norway
| | | | - Nina Iversen
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.
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Colombo M, Lòpez‐Perolio I, Meeks HD, Caleca L, Parsons MT, Li H, De Vecchi G, Tudini E, Foglia C, Mondini P, Manoukian S, Behar R, Garcia EBG, Meindl A, Montagna M, Niederacher D, Schmidt AY, Varesco L, Wappenschmidt B, Bolla MK, Dennis J, Michailidou K, Wang Q, Aittomäki K, Andrulis IL, Anton‐Culver H, Arndt V, Beckmann MW, Beeghly‐Fadel A, Benitez J, Boeckx B, Bogdanova NV, Bojesen SE, Bonanni B, Brauch H, Brenner H, Burwinkel B, Chang‐Claude J, Conroy DM, Couch FJ, Cox A, Cross SS, Czene K, Devilee P, Dörk T, Eriksson M, Fasching PA, Figueroa J, Fletcher O, Flyger H, Gabrielson M, García‐Closas M, Giles GG, González‐Neira A, Guénel P, Haiman CA, Hall P, Hamann U, Hartman M, Hauke J, Hollestelle A, Hopper JL, Jakubowska A, Jung A, Kosma V, Lambrechts D, Le Marchand L, Lindblom A, Lubinski J, Mannermaa A, Margolin S, Miao H, Milne RL, Neuhausen SL, Nevanlinna H, Olson JE, Peterlongo P, Peto J, Pylkäs K, Sawyer EJ, Schmidt MK, Schmutzler RK, Schneeweiss A, Schoemaker MJ, See MH, Southey MC, Swerdlow A, Teo SH, Toland AE, Tomlinson I, Truong T, van Asperen CJ, van den Ouweland AM, van der Kolk LE, Winqvist R, Yannoukakos D, Zheng W, Dunning AM, Easton DF, Henderson A, Hogervorst FB, Izatt L, Offitt K, Side LE, van Rensburg EJ, EMBRACE S, HEBON S, McGuffog L, Antoniou AC, Chenevix‐Trench G, Spurdle AB, Goldgar DE, de la Hoya M, Radice P. The BRCA2 c.68-7T > A variant is not pathogenic: A model for clinical calibration of spliceogenicity. Hum Mutat 2018; 39:729-741. [PMID: 29460995 PMCID: PMC5947288 DOI: 10.1002/humu.23411] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 02/06/2018] [Accepted: 02/10/2018] [Indexed: 12/12/2022]
Abstract
Although the spliceogenic nature of the BRCA2 c.68-7T > A variant has been demonstrated, its association with cancer risk remains controversial. In this study, we accurately quantified by real-time PCR and digital PCR (dPCR), the BRCA2 isoforms retaining or missing exon 3. In addition, the combined odds ratio for causality of the variant was estimated using genetic and clinical data, and its associated cancer risk was estimated by case-control analysis in 83,636 individuals. Co-occurrence in trans with pathogenic BRCA2 variants was assessed in 5,382 families. Exon 3 exclusion rate was 4.5-fold higher in variant carriers (13%) than controls (3%), indicating an exclusion rate for the c.68-7T > A allele of approximately 20%. The posterior probability of pathogenicity was 7.44 × 10-115 . There was neither evidence for increased risk of breast cancer (OR 1.03; 95% CI 0.86-1.24) nor for a deleterious effect of the variant when co-occurring with pathogenic variants. Our data provide for the first time robust evidence of the nonpathogenicity of the BRCA2 c.68-7T > A. Genetic and quantitative transcript analyses together inform the threshold for the ratio between functional and altered BRCA2 isoforms compatible with normal cell function. These findings might be exploited to assess the relevance for cancer risk of other BRCA2 spliceogenic variants.
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Affiliation(s)
- Mara Colombo
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Irene Lòpez‐Perolio
- Molecular Oncology Laboratory CIBERONCHospital Clinico San CarlosIdISSC (Instituto de Investigación Sanitaria del Hospital Clínico San Carlos)MadridSpain
| | - Huong D. Meeks
- Huntsman Cancer InstituteUniversity of UtahSalt Lake CityUtah
| | - Laura Caleca
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Michael T. Parsons
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbane, QLD 4006Australia
| | - Hongyan Li
- Huntsman Cancer InstituteUniversity of UtahSalt Lake CityUtah
| | - Giovanna De Vecchi
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Emma Tudini
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbane, QLD 4006Australia
| | - Claudia Foglia
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Patrizia Mondini
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Siranoush Manoukian
- Unit of Medical GeneticsDepartment of Medical Oncology and HematologyFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
| | - Raquel Behar
- Molecular Oncology Laboratory CIBERONCHospital Clinico San CarlosIdISSC (Instituto de Investigación Sanitaria del Hospital Clínico San Carlos)MadridSpain
| | - Encarna B. Gómez Garcia
- Department of Clinical Genetics and GROWSchool for Oncology and Developmental BiologyMUMCMaastrichtThe Netherlands
| | - Alfons Meindl
- Department of Obstetrics and GynecologyUniversity HospitalLMU MunichGermany
| | - Marco Montagna
- Immunology and Molecular Oncology UnitVeneto Institute of Oncology IOV ‐ IRCCSPaduaItaly
| | - Dieter Niederacher
- Department of Gynaecology and ObstetricsUniversity Hospital DüsseldorfHeinrich‐Heine UniversityDuesseldorfGermany
| | - Ane Y. Schmidt
- Center for Genomic MedicineRigshospitaletUniversity of CopenhagenCopenhagenDenmark
| | | | - Barbara Wappenschmidt
- Center for Hereditary Breast and Ovarian CancerUniversity Hospital of CologneCologneGermany
- Center for Integrated Oncology (CIO)Medical FacultyUniversity Hospital of CologneCologneGermany
| | - Manjeet K. Bolla
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Joe Dennis
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Kyriaki Michailidou
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
- Department of Electron Microscopy/Molecular PathologyThe Cyprus Institute of Neurology and GeneticsNicosiaCyprus
| | - Qin Wang
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Kristiina Aittomäki
- Department of Clinical GeneticsHelsinki University HospitalUniversity of HelsinkiHelsinkiFinland
| | - Irene L. Andrulis
- Fred A. Litwin Center for Cancer GeneticsLunenfeld‐Tanenbaum Research Institute of Mount Sinai HospitalTorontoOntario
- Department of Molecular GeneticsUniversity of TorontoTorontoCanada
| | - Hoda Anton‐Culver
- Department of EpidemiologyUniversity of California IrvineIrvineCalifornia
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
| | - Matthias W. Beckmann
- Department of Gynaecology and ObstetricsUniversity Hospital Erlangen, Friedrich‐Alexander University Erlangen‐NurembergComprehensive Cancer Center Erlangen‐EMNErlangenGermany
| | - Alicia Beeghly‐Fadel
- Division of EpidemiologyDepartment of MedicineVanderbilt Epidemiology CenterVanderbilt‐Ingram Cancer CenterVanderbilt University School of MedicineNashvilleTennessee
| | - Javier Benitez
- Human Cancer Genetics ProgramSpanish National Cancer Research CentreMadridSpain
- Centro de Investigación en Red de Enfermedades Raras (CIBERER)ValenciaSpain
| | - Bram Boeckx
- VIB Center for Cancer BiologyVIBLeuvenBelgium
- Laboratory for Translational GeneticsDepartment of Human GeneticsUniversity of LeuvenLeuvenBelgium
| | - Natalia V. Bogdanova
- Department of Radiation OncologyHannover Medical SchoolHannoverGermany
- Gynaecology Research UnitHannover Medical SchoolHannoverGermany
- N.N. Alexandrov Research Institute of Oncology and Medical RadiologyMinskBelarus
| | - Stig E. Bojesen
- Copenhagen General Population StudyHerlevand Gentofte HospitalCopenhagen University HospitalHerlevDenmark
- Department of Clinical BiochemistryHerlev and Gentofte HospitalCopenhagen University HospitalHerlevDenmark
- Faculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Bernardo Bonanni
- Division of Cancer Prevention and GeneticsIstituto Europeo di OncologiaMilanItaly
| | - Hiltrud Brauch
- Dr. Margarete Fischer‐Bosch‐Institute of Clinical PharmacologyStuttgartGermany
- University of TübingenTübingenGermany
- German Cancer Consortium (DKTK)German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging ResearchGerman Cancer Research Center (DKFZ)HeidelbergGermany
- German Cancer Consortium (DKTK)German Cancer Research Center (DKFZ)HeidelbergGermany
- Division of Preventive OncologyGerman Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT)HeidelbergGermany
| | - Barbara Burwinkel
- Department of Obstetrics and GynecologyUniversity of HeidelbergHeidelbergGermany
- Molecular Epidemiology GroupC080German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Jenny Chang‐Claude
- Division of Cancer EpidemiologyGerman Cancer Research Center (DKFZ)HeidelbergGermany
- Research Group Genetic Cancer EpidemiologyUniversity Cancer Center Hamburg (UCCH)University Medical Center Hamburg‐EppendorfHamburgGermany
| | - Don M. Conroy
- Centre for Cancer Genetic EpidemiologyDepartment of OncologyUniversity of CambridgeCambridgeUK
| | - Fergus J. Couch
- Department of Laboratory Medicine and PathologyMayo ClinicRochesterNew York
| | - Angela Cox
- Sheffield Institute for Nucleic Acids (SInFoNiA)Department of Oncology and MetabolismUniversity of SheffieldSheffieldUK
| | - Simon S. Cross
- Academic Unit of PathologyDepartment of NeuroscienceUniversity of SheffieldSheffieldUK
| | - Kamila Czene
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Peter Devilee
- Department of PathologyLeiden University Medical CenterLeidenThe Netherlands
- Department of Human GeneticsLeiden University Medical CenterLeidenThe Netherlands
| | - Thilo Dörk
- Gynaecology Research UnitHannover Medical SchoolHannoverGermany
| | - Mikael Eriksson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Peter A. Fasching
- Department of Gynaecology and ObstetricsUniversity Hospital Erlangen, Friedrich‐Alexander University Erlangen‐NurembergComprehensive Cancer Center Erlangen‐EMNErlangenGermany
- David Geffen School of MedicineDepartment of Medicine Division of Hematology and OncologyUniversity of California at Los AngelesLos AngelesCalifornia
| | - Jonine Figueroa
- Usher Institute of Population Health Sciences and InformaticsThe University of Edinburgh Medical SchoolEdinburghUK
- Division of Cancer Epidemiology and GeneticsNational Cancer InstituteRockvilleMaryland
| | - Olivia Fletcher
- The Breast Cancer Now Toby Robins Research CentreThe Institute of Cancer ResearchLondonUK
| | - Henrik Flyger
- Department of Breast SurgeryHerlev and Gentofte HospitalCopenhagen University HospitalHerlevDenmark
| | - Marike Gabrielson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | | | - Graham G. Giles
- Cancer Epidemiology & Intelligence DivisionCancer Council VictoriaMelbourneAustralia
- Centre for Epidemiology and BiostatisticsMelbourne School of Population and Global healthThe University of MelbourneMelbourneAustralia
| | - Anna González‐Neira
- Human Cancer Genetics ProgramSpanish National Cancer Research CentreMadridSpain
| | - Pascal Guénel
- Cancer & Environment GroupCenter for Research in Epidemiology and Population Health (CESP)INSERMUniversity Paris‐SudUniversity Paris‐SaclayVillejuifFrance
| | - Christopher A. Haiman
- Department of Preventive MedicineKeck School of MedicineUniversity of Southern CaliforniaLos AngelesCalifornia
| | - Per Hall
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Ute Hamann
- Molecular Genetics of Breast CancerDeutsches Krebsforschungszentrum (DKFZ)HeidelbergGermany
| | - Mikael Hartman
- Saw Swee Hock School of Public HealthNational University of SingaporeSingaporeSingapore
- Department of SurgeryNational University Health SystemSingaporeSingapore
| | - Jan Hauke
- Center for Hereditary Breast and Ovarian CancerUniversity Hospital of CologneCologneGermany
- Center for Integrated Oncology (CIO)Medical FacultyUniversity Hospital of CologneCologneGermany
- Center for Molecular Medicine Cologne (CMMC)University of CologneCologneGermany
| | - Antoinette Hollestelle
- Department of Medical OncologyFamily Cancer ClinicErasmus MC Cancer InstituteRotterdamThe Netherlands
| | - John L. Hopper
- Centre for Epidemiology and BiostatisticsMelbourne School of Population and Global healthThe University of MelbourneMelbourneAustralia
| | - Anna Jakubowska
- Department of Genetics and PathologyPomeranian Medical UniversitySzczecinPoland
| | - Audrey Jung
- Division of Cancer EpidemiologyGerman Cancer Research Center (DKFZ)HeidelbergGermany
| | - Veli‐Matti Kosma
- Translational Cancer Research AreaUniversity of Eastern FinlandKuopioFinland
- Institute of Clinical MedicinePathology and Forensic MedicineUniversity of Eastern FinlandKuopioFinland
- Imaging CenterDepartment of Clinical PathologyKuopio University HospitalKuopioFinland
| | - Diether Lambrechts
- VIB Center for Cancer BiologyVIBLeuvenBelgium
- Laboratory for Translational GeneticsDepartment of Human GeneticsUniversity of LeuvenLeuvenBelgium
| | - Loid Le Marchand
- Epidemiology ProgramUniversity of Hawaii Cancer CenterHonoluluHawaii
| | - Annika Lindblom
- Department of Molecular Medicine and SurgeryKarolinska InstitutetStockholmSweden
| | - Jan Lubinski
- Department of Genetics and PathologyPomeranian Medical UniversitySzczecinPoland
| | - Arto Mannermaa
- Translational Cancer Research AreaUniversity of Eastern FinlandKuopioFinland
- Institute of Clinical MedicinePathology and Forensic MedicineUniversity of Eastern FinlandKuopioFinland
- Imaging CenterDepartment of Clinical PathologyKuopio University HospitalKuopioFinland
| | - Sara Margolin
- Department of Clinical Science and Education SödersjukhusetKarolinska InstitutetStockholmSweden
| | - Hui Miao
- Saw Swee Hock School of Public HealthNational University of SingaporeSingaporeSingapore
| | - Roger L. Milne
- Cancer Epidemiology & Intelligence DivisionCancer Council VictoriaMelbourneAustralia
- Centre for Epidemiology and BiostatisticsMelbourne School of Population and Global healthThe University of MelbourneMelbourneAustralia
| | - Susan L. Neuhausen
- Department of Population SciencesBeckman Research Institute of City of HopeDuarteCalifornia
| | - Heli Nevanlinna
- Department of Obstetrics and GynecologyHelsinki University HospitalUniversity of HelsinkiHelsinkiFinland
| | - Janet E. Olson
- Department of Health Sciences ResearchMayo ClinicRochesterNew York
| | - Paolo Peterlongo
- IFOMThe FIRC (Italian Foundation for Cancer Research) Institute of Molecular OncologyMilanItaly
| | - Julian Peto
- Department of Non‐Communicable Disease EpidemiologyLondon School of Hygiene and Tropical MedicineLondonUK
| | - Katri Pylkäs
- Laboratory of Cancer Genetics and Tumor BiologyCancer and Translational Medicine Research UnitBiocenter OuluUniversity of OuluOuluFinland
- Laboratory of Cancer Genetics and Tumor BiologyNorthern Finland Laboratory Centre OuluOuluFinland
| | | | - Marjanka K. Schmidt
- Division of Molecular PathologyThe Netherlands Cancer Institute – Antoni van Leeuwenhoek HospitalAmsterdamThe Netherlands
- Division of Psychosocial Research and EpidemiologyThe Netherlands Cancer Institute – Antoni van Leeuwenhoek hospitalAmsterdamThe Netherlands
| | - Rita K. Schmutzler
- Center for Hereditary Breast and Ovarian CancerUniversity Hospital of CologneCologneGermany
- Center for Integrated Oncology (CIO)Medical FacultyUniversity Hospital of CologneCologneGermany
- Center for Molecular Medicine Cologne (CMMC)University of CologneCologneGermany
| | - Andreas Schneeweiss
- Department of Obstetrics and GynecologyUniversity of HeidelbergHeidelbergGermany
- National Center for Tumor DiseasesUniversity of HeidelbergHeidelbergGermany
| | | | - Mee Hoong See
- Breast Cancer Research UnitCancer Research InstituteUniversity Malaya Medical CentreKuala LumpurMalaysia
| | | | - Anthony Swerdlow
- Division of Genetics and EpidemiologyThe Institute of Cancer ResearchLondonUK
- Division of Breast Cancer ResearchThe Institute of Cancer ResearchLondonUK
| | - Soo H. Teo
- Breast Cancer Research UnitCancer Research InstituteUniversity Malaya Medical CentreKuala LumpurMalaysia
- Cancer Research MalaysiaSubang JayaSelangorMalaysia
| | - Amanda E. Toland
- Department of Molecular VirologyImmunology and Medical GeneticsComprehensive Cancer CenterThe Ohio State UniversityColumbusOhio
| | - Ian Tomlinson
- Wellcome Trust Centre for Human Genetics and Oxford NIHR Biomedical Research CentreUniversity of OxfordOxfordUK
| | - Thérèse Truong
- Cancer & Environment GroupCenter for Research in Epidemiology and Population Health (CESP)INSERMUniversity Paris‐SudUniversity Paris‐SaclayVillejuifFrance
| | | | | | - Lizet E. van der Kolk
- Family Cancer ClinicThe Netherlands Cancer Institute ‐ Antoni van Leeuwenhoek hospitalAmsterdamThe Netherlands
| | - Robert Winqvist
- Laboratory of Cancer Genetics and Tumor BiologyCancer and Translational Medicine Research UnitBiocenter OuluUniversity of OuluOuluFinland
- Laboratory of Cancer Genetics and Tumor BiologyNorthern Finland Laboratory Centre OuluOuluFinland
| | - Drakoulis Yannoukakos
- Molecular Diagnostics LaboratoryINRASTESNational Centre for Scientific Research “Demokritos”AthensGreece
| | - Wei Zheng
- Division of EpidemiologyDepartment of MedicineVanderbilt Epidemiology CenterVanderbilt‐Ingram Cancer CenterVanderbilt University School of MedicineNashvilleTennessee
| | | | - Alison M. Dunning
- Centre for Cancer Genetic EpidemiologyDepartment of OncologyUniversity of CambridgeCambridgeUK
| | - Douglas F. Easton
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
- Centre for Cancer Genetic EpidemiologyDepartment of OncologyUniversity of CambridgeCambridgeUK
| | - Alex Henderson
- Institute of Genetic MedicineCentre for LifeNewcastle Upon Tyne Hospitals NHS TrustNewcastle upon TyneUK
| | - Frans B.L. Hogervorst
- Family Cancer ClinicThe Netherlands Cancer Institute ‐ Antoni van Leeuwenhoek hospitalAmsterdamThe Netherlands
| | - Louise Izatt
- Clinical GeneticsGuy's and St. Thomas’ NHS Foundation TrustLondonUK
| | - Kenneth Offitt
- Clinical Genetics Research LaboratoryDept. of MedicineCancer Biology and GeneticsMemorial Sloan‐Kettering Cancer CenterNew YorkNew York
| | - Lucy E. Side
- Wessex Clinical Genetics ServiceMailpoint 627, Princess Anne Hospital, Coxford Road, Southampton, SO16 5YA
| | | | - Study EMBRACE
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeStrangeways Research LaboratoryWorts CausewayCambridgeUK
| | - Study HEBON
- The Hereditary Breast and Ovarian Cancer Research Group Netherlands (HEBON)Coordinating center: Netherlands Cancer InstituteAmsterdamThe Netherlands
| | - Lesley McGuffog
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Antonis C. Antoniou
- Centre for Cancer Genetic EpidemiologyDepartment of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Georgia Chenevix‐Trench
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbane, QLD 4006Australia
| | - Amanda B. Spurdle
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbane, QLD 4006Australia
| | | | - Miguel de la Hoya
- Molecular Oncology Laboratory CIBERONCHospital Clinico San CarlosIdISSC (Instituto de Investigación Sanitaria del Hospital Clínico San Carlos)MadridSpain
| | - Paolo Radice
- Unit of Molecular Bases of Genetic Risk and Genetic TestingDepartment of ResearchFondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Nazionale dei Tumori (INT)MilanItaly
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9
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Møller P, Hovig E. The BRCA2 variant c.68-7 T>A is associated with breast cancer. Hered Cancer Clin Pract 2017; 15:20. [PMID: 29158857 PMCID: PMC5683587 DOI: 10.1186/s13053-017-0080-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/31/2017] [Indexed: 01/01/2023] Open
Abstract
Background BRCA2 c.68-7T>A has been demonstrated to cause aberrant splicing and is possibly pathogenic. The population prevalence of the variant is 0.2%, which higher than usual for pathogenic BRCA2 variants. The pathogenicity of the variant is discussed. Methods The outpatient genetic clinic at The Norwegian Radium Hospital, part of Oslo University Hospital, has invited breast cancer kindreds for genetic examinations and prospective follow-up of high risk patients since 1988. We have complete files of all activities and results, and we examined the files for association between BRCA2 c.68-7T>A and breast cancer. Results Seventeen out of 714 (2.4%) breast cancer kindreds sequenced for BRCA2 carried the variant BRCA2 c.68-7T>A (p < 0.0001 compared to population controls). Segregation analysis was inconclusive (likelihood ratio 0.36) for pathogenicity. Two breast cancers were prospectively observed during 134 observation years (annual incidence rate 1.5% (95% CI 0.15% to 5.4%) and one additional breast cancer was diagnosed at first (prevalence) round. Conclusion BRCA2 c.68-7T>A is associated with breast cancer. In the families selected due to aggregation of breast cancer, carriers of the BRCA2 c.68-7T>A variant have increased risk for breast cancer. It is, however, possible that the variant has lower penetrance than the average pathogenic BRCA2 variants, and that in the families selected for having known aggregation of breast cancer other (modifying) factors contributed to the observed results.
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Affiliation(s)
- Pål Møller
- Research Group Inherited Cancer, Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.,Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Center for Hereditary Tumors, HELIOS-Klinikum Wuppertal, University of Witten-Herdecke, Wuppertal, Germany
| | - Eivind Hovig
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Institute for Cancer Genetics and Informatics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Department of Informatics, University of Oslo, Oslo, Norway
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10
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Eftekhari-Sis B, Karaminejad S, Malekan F, Araghi HY, Akbari A. CdSe Quantum Dots Based Nano-Biosensor for Detection of 185delAG Mutation in BRCA1 Gene, Responsible for Breast Cancer. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0661-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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