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Paganini I, Capone GL, Vitte J, Sestini R, Putignano AL, Giovannini M, Papi L. Double somatic SMARCB1 and NF2 mutations in sporadic spinal schwannoma. J Neurooncol 2017; 137:33-38. [PMID: 29230670 DOI: 10.1007/s11060-017-2711-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 12/06/2017] [Indexed: 12/18/2022]
Abstract
In sporadic schwannomas, inactivation of both copies of the NF2 tumor suppressor gene on 22q is common. Constitutional mutations of SMARCB1 are responsible of schwannomatosis, an inherited tumor predisposition syndrome, characterized by the development of multiple schwannomas. We analysed the frequency of copy number changes on chromosome 22 and the mutation of NF2 and SMARCB1 in 26 sporadic schwannomas. We found two spinal schwannomas with an identical somatic missense mutation in SMARCB1 exon 9: p.(Arg377His). Both SMARCB1 mutated schwannomas had LOH of 22q and one of them harbored an inactivating mutation of NF2. The p.(Arg377His) change was not found in a series of 28 vestibular schwannomas. Our data indicate that mutations affecting SMARCB1 play a role in the development or progression of a small subset of spinal schwannomas and that biallelic inactivation of SMARCB1 may cooperate with deficiency of NF2 function in schwannoma tumorigenesis according to the "four-hit/three events" mechanism of tumorigenesis that we demonstrated in schwannomatosis-associated schwannomas.
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Affiliation(s)
- Irene Paganini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Medical Genetics Unit, University of Florence, Florence, Italy
| | - Gabriele Lorenzo Capone
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Medical Genetics Unit, University of Florence, Florence, Italy
| | - Jeremie Vitte
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA and Jonsson Comprehensive Cancer Center (JCCC), University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Roberta Sestini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Medical Genetics Unit, University of Florence, Florence, Italy
| | - Anna Laura Putignano
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Medical Genetics Unit, University of Florence, Florence, Italy
| | - Marco Giovannini
- Department of Head and Neck Surgery, David Geffen School of Medicine at UCLA and Jonsson Comprehensive Cancer Center (JCCC), University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Laura Papi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Medical Genetics Unit, University of Florence, Florence, Italy.
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2
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Sciarrino R, Putignano AL, Biagini C, Rombolà G, Curcio M. Identification of a new HLA-A*24 allele, A*24:309, in an Italian bone marrow donor. HLA 2016; 87:101-2. [PMID: 26889904 DOI: 10.1111/tan.12724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 11/21/2015] [Accepted: 11/23/2015] [Indexed: 11/30/2022]
Abstract
A novel class I human leukocyte antigen allele HLA-A*24:309 is described.
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Affiliation(s)
- R Sciarrino
- Azienda Ospedaliera Universitaria Pisana, U.O. Medicina Trasfusionale e Biologia dei Trapianti-Pisa, Pisa, Italy
| | - A L Putignano
- Azienda Ospedaliera Universitaria Careggi, U.O Genetica Medica-Firenze, Pisa, Italy
| | - C Biagini
- Azienda Ospedaliera Universitaria Pisana, U.O. Medicina Trasfusionale e Biologia dei Trapianti-Pisa, Pisa, Italy
| | - G Rombolà
- Azienda Ospedaliera Universitaria Careggi, U.O Genetica Medica-Firenze, Pisa, Italy
| | - M Curcio
- Azienda Ospedaliera Universitaria Pisana, U.O. Medicina Trasfusionale e Biologia dei Trapianti-Pisa, Pisa, Italy
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3
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Peterlongo P, Catucci I, Colombo M, Caleca L, Mucaki E, Bogliolo M, Marin M, Damiola F, Bernard L, Pensotti V, Volorio S, Dall'Olio V, Meindl A, Bartram C, Sutter C, Surowy H, Sornin V, Dondon MG, Eon-Marchais S, Stoppa-Lyonnet D, Andrieu N, Sinilnikova OM, Mitchell G, James PA, Thompson E, Marchetti M, Verzeroli C, Tartari C, Capone GL, Putignano AL, Genuardi M, Medici V, Marchi I, Federico M, Tognazzo S, Matricardi L, Agata S, Dolcetti R, Della Puppa L, Cini G, Gismondi V, Viassolo V, Perfumo C, Mencarelli MA, Baldassarri M, Peissel B, Roversi G, Silvestri V, Rizzolo P, Spina F, Vivanet C, Tibiletti MG, Caligo MA, Gambino G, Tommasi S, Pilato B, Tondini C, Corna C, Bonanni B, Barile M, Osorio A, Benitez J, Balestrino L, Ottini L, Manoukian S, Pierotti MA, Renieri A, Varesco L, Couch FJ, Wang X, Devilee P, Hilbers FS, van Asperen CJ, Viel A, Montagna M, Cortesi L, Diez O, Balmaña J, Hauke J, Schmutzler RK, Papi L, Pujana MA, Lázaro C, Falanga A, Offit K, Vijai J, Campbell I, Burwinkel B, Kvist A, Ehrencrona H, Mazoyer S, Pizzamiglio S, Verderio P, Surralles J, Rogan PK, Radice P. FANCM c.5791C>T nonsense mutation (rs144567652) induces exon skipping, affects DNA repair activity and is a familial breast cancer risk factor. Hum Mol Genet 2015; 24:5345-55. [PMID: 26130695 DOI: 10.1093/hmg/ddv251] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 06/25/2015] [Indexed: 11/15/2022] Open
Abstract
Numerous genetic factors that influence breast cancer risk are known. However, approximately two-thirds of the overall familial risk remain unexplained. To determine whether some of the missing heritability is due to rare variants conferring high to moderate risk, we tested for an association between the c.5791C>T nonsense mutation (p.Arg1931*; rs144567652) in exon 22 of FANCM gene and breast cancer. An analysis of genotyping data from 8635 familial breast cancer cases and 6625 controls from different countries yielded an association between the c.5791C>T mutation and breast cancer risk [odds ratio (OR) = 3.93 (95% confidence interval (CI) = 1.28-12.11; P = 0.017)]. Moreover, we performed two meta-analyses of studies from countries with carriers in both cases and controls and of all available data. These analyses showed breast cancer associations with OR = 3.67 (95% CI = 1.04-12.87; P = 0.043) and OR = 3.33 (95% CI = 1.09-13.62; P = 0.032), respectively. Based on information theory-based prediction, we established that the mutation caused an out-of-frame deletion of exon 22, due to the creation of a binding site for the pre-mRNA processing protein hnRNP A1. Furthermore, genetic complementation analyses showed that the mutation influenced the DNA repair activity of the FANCM protein. In summary, we provide evidence for the first time showing that the common p.Arg1931* loss-of-function variant in FANCM is a risk factor for familial breast cancer.
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Affiliation(s)
- Paolo Peterlongo
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine,
| | - Irene Catucci
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine
| | - Mara Colombo
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine
| | - Laura Caleca
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine
| | - Eliseos Mucaki
- Department of Biochemistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Massimo Bogliolo
- Genome Instability and DNA Repair Group, Department of Genetics and Microbiology, Universitat Autònoma de Barcelona and Center for Biomedical Network Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Maria Marin
- Genome Instability and DNA Repair Group, Department of Genetics and Microbiology, Universitat Autònoma de Barcelona and Center for Biomedical Network Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Francesca Damiola
- Cancer Research Centre of Lyon, CNRS UMR5286, INSERM U1052, Université Claude Bernard Lyon 1, Centre Léon Bérard, Lyon, France
| | - Loris Bernard
- Department of Experimental Oncology and Cogentech, Cancer Genetic Test Laboratory, Milan, Italy
| | - Valeria Pensotti
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Cogentech, Cancer Genetic Test Laboratory, Milan, Italy
| | - Sara Volorio
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Cogentech, Cancer Genetic Test Laboratory, Milan, Italy
| | - Valentina Dall'Olio
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Cogentech, Cancer Genetic Test Laboratory, Milan, Italy
| | - Alfons Meindl
- Division of Gynaecology and Obstetrics, Technische Universität München, Munich, Germany
| | - Claus Bartram
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - Christian Sutter
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - Harald Surowy
- Molecular Biology of Breast Cancer, Department of Obstetrics and Gynecology, University Hospital Heidelberg, Heidelberg, Germany, Molecular Epidemiology Group, C080, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Valérie Sornin
- Cancer Research Centre of Lyon, CNRS UMR5286, INSERM U1052, Université Claude Bernard Lyon 1, Centre Léon Bérard, Lyon, France
| | - Marie-Gabrielle Dondon
- INSERM, U900, Paris, France, Institut Curie, Paris, France, Mines ParisTech, Fontainebleau, France
| | - Séverine Eon-Marchais
- INSERM, U900, Paris, France, Institut Curie, Paris, France, Mines ParisTech, Fontainebleau, France
| | - Dominique Stoppa-Lyonnet
- Service de Génétique Oncologique, Institut Curie, Paris, France, INSERM, U830, Paris, France, Université Paris-Descartes, Paris, France
| | - Nadine Andrieu
- INSERM, U900, Paris, France, Institut Curie, Paris, France, Mines ParisTech, Fontainebleau, France
| | - Olga M Sinilnikova
- Cancer Research Centre of Lyon, CNRS UMR5286, INSERM U1052, Université Claude Bernard Lyon 1, Centre Léon Bérard, Lyon, France, Unité Mixte de Génétique Constitutionnelle des Cancers Fréquents, Centre Hospitalier Universitaire de Lyon/Centre Léon Bérard, Lyon, France
| | | | - Gillian Mitchell
- Familial Cancer Centre, Sir Peter MacCallum Department of Oncology and
| | - Paul A James
- Familial Cancer Centre, Sir Peter MacCallum Department of Oncology and
| | - Ella Thompson
- Cancer Genetics Laboratory and Sir Peter MacCallum Department of Oncology and
| | | | | | | | - Cristina Verzeroli
- Kathleen Cunningham Foundation Consortium for Research into Familial Breast Cancer (kConFab), Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| | - Carmen Tartari
- Department of Immunohematology and Transfusion Medicine and
| | - Gabriele Lorenzo Capone
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università di Firenze, Firenze, Italy, FiorGen Foundation for Pharmacogenomics, Sesto Fiorentino, Italy
| | - Anna Laura Putignano
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università di Firenze, Firenze, Italy, FiorGen Foundation for Pharmacogenomics, Sesto Fiorentino, Italy
| | - Maurizio Genuardi
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università di Firenze, Firenze, Italy, FiorGen Foundation for Pharmacogenomics, Sesto Fiorentino, Italy, Institute of Medical Genetics, 'A. Gemelli' School of Medicine, Catholic University, Rome, Italy
| | - Veronica Medici
- Dipartimento di Oncologia, Ematologia e Malattie dell'Apparato Respiratorio, Università di Modena e Reggio Emilia, Modena, Italy
| | - Isabella Marchi
- Dipartimento di Oncologia, Ematologia e Malattie dell'Apparato Respiratorio, Università di Modena e Reggio Emilia, Modena, Italy
| | - Massimo Federico
- Dipartimento di Oncologia, Ematologia e Malattie dell'Apparato Respiratorio, Università di Modena e Reggio Emilia, Modena, Italy
| | - Silvia Tognazzo
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV - IRCCS, Padua, Italy
| | - Laura Matricardi
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV - IRCCS, Padua, Italy
| | - Simona Agata
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV - IRCCS, Padua, Italy
| | | | - Lara Della Puppa
- Unit of Experimental Oncology 1, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Giulia Cini
- Unit of Experimental Oncology 1, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Viviana Gismondi
- Unit of Hereditary Cancers, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Valeria Viassolo
- Unit of Hereditary Cancers, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Chiara Perfumo
- Unit of Hereditary Cancers, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Maria Antonietta Mencarelli
- Medical Genetics, University of Siena, Siena, Italy, Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Margherita Baldassarri
- Medical Genetics, University of Siena, Siena, Italy, Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Bernard Peissel
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine
| | - Gaia Roversi
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine
| | | | - Piera Rizzolo
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | | | | | - Maria Adelaide Caligo
- Section of Genetic Oncology, University Hospital and University of Pisa, Pisa, Italy
| | - Gaetana Gambino
- Section of Genetic Oncology, University Hospital and University of Pisa, Pisa, Italy
| | - Stefania Tommasi
- IRCCS Istituto Tumori 'Giovanni Paolo II', Molecular Genetics Laboratory, Bari, Italy
| | - Brunella Pilato
- IRCCS Istituto Tumori 'Giovanni Paolo II', Molecular Genetics Laboratory, Bari, Italy
| | - Carlo Tondini
- Unit of Medical Oncology, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Chiara Corna
- Unit of Medical Oncology, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Bernardo Bonanni
- Division of Cancer Prevention and Genetics, Istituto Europeo di Oncologia, Milan, Italy
| | - Monica Barile
- Division of Cancer Prevention and Genetics, Istituto Europeo di Oncologia, Milan, Italy
| | - Ana Osorio
- Human Cancer Genetics Programme, Spanish National Cancer Centre (CNIO), Madrid, Spain, Spanish Genotyping Centre (CEGEN), Madrid, Spain
| | - Javier Benitez
- Human Cancer Genetics Programme, Spanish National Cancer Centre (CNIO), Madrid, Spain, Spanish Genotyping Centre (CEGEN), Madrid, Spain
| | | | - Laura Ottini
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | | | - Alessandra Renieri
- Medical Genetics, University of Siena, Siena, Italy, Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Liliana Varesco
- Unit of Hereditary Cancers, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Fergus J Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Xianshu Wang
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Peter Devilee
- Department of Human Genetics, Department of Pathology and
| | | | - Christi J van Asperen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Alessandra Viel
- Unit of Experimental Oncology 1, CRO Aviano National Cancer Institute, Aviano (PN), Italy
| | - Marco Montagna
- Immunology and Molecular Oncology Unit, Istituto Oncologico Veneto IOV - IRCCS, Padua, Italy
| | - Laura Cortesi
- Dipartimento di Oncologia, Ematologia e Malattie dell'Apparato Respiratorio, Università di Modena e Reggio Emilia, Modena, Italy
| | - Orland Diez
- Oncogenetics Group, Hospital Universitari de la Vall d'Hebron, Barcelona, Spain, Vall d́Hebron Institute of Oncology (VHIO), Barcelona, Spain, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Judith Balmaña
- Vall d́Hebron Institute of Oncology (VHIO), Barcelona, Spain, Department of Medical Oncology, Hospital Universitari de la Vall d́Hebron, Barcelona, Spain
| | - Jan Hauke
- Center for Familial Breast and Ovarian Cancer, University Hospital of Cologne, Cologne, Germany
| | - Rita K Schmutzler
- Center for Familial Breast and Ovarian Cancer, University Hospital of Cologne, Cologne, Germany
| | - Laura Papi
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università di Firenze, Firenze, Italy
| | | | - Conxi Lázaro
- Catalan Institute of Oncology - IDIBELL, Barcelona, Spain
| | - Anna Falanga
- Department of Immunohematology and Transfusion Medicine and
| | - Kenneth Offit
- Clinical Genetics Service, Department of Medicine and Department of Cancer Biology and Genetics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joseph Vijai
- Clinical Genetics Service, Department of Medicine and Department of Cancer Biology and Genetics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ian Campbell
- Cancer Genetics Laboratory and Sir Peter MacCallum Department of Oncology and Department of Pathology, University of Melbourne, Parkville, Victoria, Australia
| | - Barbara Burwinkel
- Molecular Biology of Breast Cancer, Department of Obstetrics and Gynecology, University Hospital Heidelberg, Heidelberg, Germany, Molecular Epidemiology Group, C080, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Anders Kvist
- Division of Oncology, Department of Clinical Sciences
| | - Hans Ehrencrona
- Department of Clinical Genetics, Laboratory Medicine, Office for Medical Services and Department of Clinical Genetics, Lund University, Lund, Sweden
| | - Sylvie Mazoyer
- Cancer Research Centre of Lyon, CNRS UMR5286, INSERM U1052, Université Claude Bernard Lyon 1, Centre Léon Bérard, Lyon, France
| | - Sara Pizzamiglio
- Unit of Medical Statistics, Biometry and Bioinformatics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paolo Verderio
- Unit of Medical Statistics, Biometry and Bioinformatics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Jordi Surralles
- Genome Instability and DNA Repair Group, Department of Genetics and Microbiology, Universitat Autònoma de Barcelona and Center for Biomedical Network Research on Rare Diseases (CIBERER), Barcelona, Spain
| | - Peter K Rogan
- Department of Biochemistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Paolo Radice
- IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy, Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine
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Porfirio B, Paganini M, Mazzanti B, Bagnoli S, Bucciantini S, Ghelli E, Nacmias B, Putignano AL, Rombolà G, Saccardi R, Lombardini L, Di Lorenzo N, Vannelli GB, Gallina P. Donor-Specific Anti-HLA Antibodies in Huntington's Disease Recipients of Human Fetal Striatal Grafts. Cell Transplant 2015; 24:811-7. [DOI: 10.3727/096368913x676222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Fetal grafting in a human diseased brain was thought to be less immunogenic than other solid organ transplants, hence the minor impact on the efficacy of the transplant. How much prophylactic immune protection is required for neural allotransplantation is also debated. High-sensitive anti-HLA antibody screening in this field has never been reported. Sixteen patients with Huntington's disease underwent human fetal striatal transplantation in the frame of an open-label observational trial, which is being carried out at Florence University. All patients had both brain hemispheres grafted in two separate robotic-stereotactic procedures. The trial started in February 2006 with the first graft to the first patient (R1). R16 was given his second graft on March 2011. All patients received triple immunosuppressive treatment. Pre- and posttransplant sera were analyzed for the presence of anti-HLA antibodies using the multiplexed microsphere-based suspension array Luminex xMAP technology. Median follow-up was 38.5 months (range 13-85). Six patients developed anti-HLA antibodies, which turned out to be donor specific. Alloimmunization occurred in a time window of 0–49 months after the first neurosurgical procedure. The immunogenic determinants were non-self-epitopes from mismatched HLA antigens. These determinants were both public epitopes shared by two or more HLA molecules and private epitopes unique to individual HLA molecules. One patient had non-donor-specific anti-HLA antibodies in her pretransplant serum sample, possibly due to previous sensitization events. Although the clinical significance of donor-specific antibodies is far from being established, particularly in the setting of neuronal transplantation, these findings underline the need of careful pre- and posttransplant immunogenetic evaluation of patients with intracerebral grafts.
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Affiliation(s)
- Berardino Porfirio
- Careggi University Hospital, Florence, Italy
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy
| | | | | | - Silvia Bagnoli
- Department of Neurosciences, University of Florence, Florence, Italy
| | | | | | - Benedetta Nacmias
- Careggi University Hospital, Florence, Italy
- Department of Neurosciences, University of Florence, Florence, Italy
| | | | | | | | | | - Nicola Di Lorenzo
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Gabriella B. Vannelli
- Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
| | - Pasquale Gallina
- Careggi University Hospital, Florence, Italy
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
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5
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Caleca L, Putignano AL, Colombo M, Congregati C, Sarkar M, Magliery TJ, Ripamonti CB, Foglia C, Peissel B, Zaffaroni D, Manoukian S, Tondini C, Barile M, Pensotti V, Bernard L, Papi L, Radice P. Characterization of an Italian founder mutation in the RING-finger domain of BRCA1. PLoS One 2014; 9:e86924. [PMID: 24516540 PMCID: PMC3916327 DOI: 10.1371/journal.pone.0086924] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 12/16/2013] [Indexed: 12/17/2022] Open
Abstract
The identification of founder mutations in cancer predisposing genes is important to improve risk assessment in geographically defined populations, since it may provide specific targets resulting in cost-effective genetic testing. Here, we report the characterization of the BRCA1 c.190T>C (p.Cys64Arg) mutation, mapped to the RING-finger domain coding region, that we detected in 43 hereditary breast/ovarian cancer (HBOC) families, for the large part originating from the province of Bergamo (Northern Italy). Haplotype analysis was performed in 21 families, and led to the identification of a shared haplotype extending over three BRCA1-associated marker loci (0.4 cM). Using the DMLE+2.2 software program and regional population demographic data, we were able to estimate the age of the mutation to vary between 3,100 and 3,350 years old. Functional characterization of the mutation was carried out at both transcript and protein level. Reverse transcriptase-PCR analysis on lymphoblastoid cells revealed expression of full length mRNA from the mutant allele. A green fluorescent protein (GFP)-fragment reassembly assay showed that the p.Cys64Arg substitution prevents the binding of the BRCA1 protein to the interacting protein BARD1, in a similar way as proven deleterious mutations in the RING-domain. Overall, 55 of 83 (66%) female mutation carriers had a diagnosis of breast and/or ovarian cancer. Our observations indicate that the BRCA1 c.190T>C is a pathogenic founder mutation present in the Italian population. Further analyses will evaluate whether screening for this mutation can be suggested as an effective strategy for the rapid identification of at-risk individuals in the Bergamo area.
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Affiliation(s)
- Laura Caleca
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), c/o Amadeolab, Milano, Italy
- * E-mail:
| | - Anna Laura Putignano
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
- FiorGen Foundation for Pharmacogenomics, Sesto Fiorentino, Italy
| | - Mara Colombo
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), c/o Amadeolab, Milano, Italy
| | - Caterina Congregati
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Mohosin Sarkar
- Department of Chemistry and Department of Biochemistry, The Ohio State University, Columbus, Ohio, United States of America
| | - Thomas J. Magliery
- Department of Chemistry and Department of Biochemistry, The Ohio State University, Columbus, Ohio, United States of America
| | - Carla B. Ripamonti
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), c/o Amadeolab, Milano, Italy
| | - Claudia Foglia
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), c/o Amadeolab, Milano, Italy
| | - Bernard Peissel
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Daniela Zaffaroni
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Siranoush Manoukian
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Carlo Tondini
- Unit of Medical Oncology, Azienda Ospedaliera Papa Giovanni XXIII, Bergamo, Italy
| | - Monica Barile
- Division of Cancer Prevention and Genetics, Istituto Europeo di Oncologia, Milan, Italy
| | - Valeria Pensotti
- COGENTECH-Cancer Genetic Testing Laboratory, Milan, Italy
- Fondazione Istituto FIRC di Oncologia Molecolare, Milan, Italy
| | - Loris Bernard
- COGENTECH-Cancer Genetic Testing Laboratory, Milan, Italy
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
| | - Laura Papi
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Paolo Radice
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), c/o Amadeolab, Milano, Italy
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Mavaddat N, Barrowdale D, Andrulis IL, Domchek SM, Eccles D, Nevanlinna H, Ramus SJ, Spurdle A, Robson M, Sherman M, Mulligan AM, Couch FJ, Engel C, McGuffog L, Healey S, Sinilnikova OM, Southey MC, Terry MB, Goldgar D, O'Malley F, John EM, Janavicius R, Tihomirova L, Hansen TVO, Nielsen FC, Osorio A, Stavropoulou A, Benítez J, Manoukian S, Peissel B, Barile M, Volorio S, Pasini B, Dolcetti R, Putignano AL, Ottini L, Radice P, Hamann U, Rashid MU, Hogervorst FB, Kriege M, van der Luijt RB, Peock S, Frost D, Evans DG, Brewer C, Walker L, Rogers MT, Side LE, Houghton C, Weaver J, Godwin AK, Schmutzler RK, Wappenschmidt B, Meindl A, Kast K, Arnold N, Niederacher D, Sutter C, Deissler H, Gadzicki D, Preisler-Adams S, Varon-Mateeva R, Schönbuchner I, Gevensleben H, Stoppa-Lyonnet D, Belotti M, Barjhoux L, Isaacs C, Peshkin BN, Caldes T, de la Hoya M, Cañadas C, Heikkinen T, Heikkilä P, Aittomäki K, Blanco I, Lazaro C, Brunet J, Agnarsson BA, Arason A, Barkardottir RB, Dumont M, Simard J, Montagna M, Agata S, D'Andrea E, Yan M, Fox S, Rebbeck TR, Rubinstein W, Tung N, Garber JE, Wang X, Fredericksen Z, Pankratz VS, Lindor NM, Szabo C, Offit K, Sakr R, Gaudet MM, Singer CF, Tea MK, Rappaport C, Mai PL, Greene MH, Sokolenko A, Imyanitov E, Toland AE, Senter L, Sweet K, Thomassen M, Gerdes AM, Kruse T, Caligo M, Aretini P, Rantala J, von Wachenfeld A, Henriksson K, Steele L, Neuhausen SL, Nussbaum R, Beattie M, Odunsi K, Sucheston L, Gayther SA, Nathanson K, Gross J, Walsh C, Karlan B, Chenevix-Trench G, Easton DF, Antoniou AC. Pathology of breast and ovarian cancers among BRCA1 and BRCA2 mutation carriers: results from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). Cancer Epidemiol Biomarkers Prev 2012; 21:134-47. [PMID: 22144499 PMCID: PMC3272407 DOI: 10.1158/1055-9965.epi-11-0775] [Citation(s) in RCA: 437] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Previously, small studies have found that BRCA1 and BRCA2 breast tumors differ in their pathology. Analysis of larger datasets of mutation carriers should allow further tumor characterization. METHODS We used data from 4,325 BRCA1 and 2,568 BRCA2 mutation carriers to analyze the pathology of invasive breast, ovarian, and contralateral breast cancers. RESULTS There was strong evidence that the proportion of estrogen receptor (ER)-negative breast tumors decreased with age at diagnosis among BRCA1 (P-trend = 1.2 × 10(-5)), but increased with age at diagnosis among BRCA2, carriers (P-trend = 6.8 × 10(-6)). The proportion of triple-negative tumors decreased with age at diagnosis in BRCA1 carriers but increased with age at diagnosis of BRCA2 carriers. In both BRCA1 and BRCA2 carriers, ER-negative tumors were of higher histologic grade than ER-positive tumors (grade 3 vs. grade 1; P = 1.2 × 10(-13) for BRCA1 and P = 0.001 for BRCA2). ER and progesterone receptor (PR) expression were independently associated with mutation carrier status [ER-positive odds ratio (OR) for BRCA2 = 9.4, 95% CI: 7.0-12.6 and PR-positive OR = 1.7, 95% CI: 1.3-2.3, under joint analysis]. Lobular tumors were more likely to be BRCA2-related (OR for BRCA2 = 3.3, 95% CI: 2.4-4.4; P = 4.4 × 10(-14)), and medullary tumors BRCA1-related (OR for BRCA2 = 0.25, 95% CI: 0.18-0.35; P = 2.3 × 10(-15)). ER-status of the first breast cancer was predictive of ER-status of asynchronous contralateral breast cancer (P = 0.0004 for BRCA1; P = 0.002 for BRCA2). There were no significant differences in ovarian cancer morphology between BRCA1 and BRCA2 carriers (serous: 67%; mucinous: 1%; endometrioid: 12%; clear-cell: 2%). CONCLUSIONS/IMPACT: Pathologic characteristics of BRCA1 and BRCA2 tumors may be useful for improving risk-prediction algorithms and informing clinical strategies for screening and prophylaxis.
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Affiliation(s)
- Nasim Mavaddat
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
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Antoniou AC, Kartsonaki C, Sinilnikova OM, Soucy P, McGuffog L, Healey S, Lee A, Peterlongo P, Manoukian S, Peissel B, Zaffaroni D, Cattaneo E, Barile M, Pensotti V, Pasini B, Dolcetti R, Giannini G, Putignano AL, Varesco L, Radice P, Mai PL, Greene MH, Andrulis IL, Glendon G, Ozcelik H, Thomassen M, Gerdes AM, Kruse TA, Birk Jensen U, Crüger DG, Caligo MA, Laitman Y, Milgrom R, Kaufman B, Paluch-Shimon S, Friedman E, Loman N, Harbst K, Lindblom A, Arver B, Ehrencrona H, Melin B, Nathanson KL, Domchek SM, Rebbeck T, Jakubowska A, Lubinski J, Gronwald J, Huzarski T, Byrski T, Cybulski C, Gorski B, Osorio A, Ramón y Cajal T, Fostira F, Andrés R, Benitez J, Hamann U, Hogervorst FB, Rookus MA, Hooning MJ, Nelen MR, van der Luijt RB, van Os TAM, van Asperen CJ, Devilee P, Meijers-Heijboer HEJ, Gómez Garcia EB, Peock S, Cook M, Frost D, Platte R, Leyland J, Evans DG, Lalloo F, Eeles R, Izatt L, Adlard J, Davidson R, Eccles D, Ong KR, Cook J, Douglas F, Paterson J, Kennedy MJ, Miedzybrodzka Z, Godwin A, Stoppa-Lyonnet D, Buecher B, Belotti M, Tirapo C, Mazoyer S, Barjhoux L, Lasset C, Leroux D, Faivre L, Bronner M, Prieur F, Nogues C, Rouleau E, Pujol P, Coupier I, Frénay M, Hopper JL, Daly MB, Terry MB, John EM, Buys SS, Yassin Y, Miron A, Goldgar D, Singer CF, Tea MK, Pfeiler G, Dressler AC, Hansen TVO, Jønson L, Ejlertsen B, Barkardottir RB, Kirchhoff T, Offit K, Piedmonte M, Rodriguez G, Small L, Boggess J, Blank S, Basil J, Azodi M, Toland AE, Montagna M, Tognazzo S, Agata S, Imyanitov E, Janavicius R, Lazaro C, Blanco I, Pharoah PDP, Sucheston L, Karlan BY, Walsh CS, Olah E, Bozsik A, Teo SH, Seldon JL, Beattie MS, van Rensburg EJ, Sluiter MD, Diez O, Schmutzler RK, Wappenschmidt B, Engel C, Meindl A, Ruehl I, Varon-Mateeva R, Kast K, Deissler H, Niederacher D, Arnold N, Gadzicki D, Schönbuchner I, Caldes T, de la Hoya M, Nevanlinna H, Aittomäki K, Dumont M, Chiquette J, Tischkowitz M, Chen X, Beesley J, Spurdle AB, Neuhausen SL, Chun Ding Y, Fredericksen Z, Wang X, Pankratz VS, Couch F, Simard J, Easton DF, Chenevix-Trench G. Common alleles at 6q25.1 and 1p11.2 are associated with breast cancer risk for BRCA1 and BRCA2 mutation carriers. Hum Mol Genet 2011; 20:3304-21. [PMID: 21593217 PMCID: PMC3652640 DOI: 10.1093/hmg/ddr226] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 05/09/2011] [Accepted: 05/16/2011] [Indexed: 11/15/2022] Open
Abstract
Two single nucleotide polymorphisms (SNPs) at 6q25.1, near the ESR1 gene, have been implicated in the susceptibility to breast cancer for Asian (rs2046210) and European women (rs9397435). A genome-wide association study in Europeans identified two further breast cancer susceptibility variants: rs11249433 at 1p11.2 and rs999737 in RAD51L1 at 14q24.1. Although previously identified breast cancer susceptibility variants have been shown to be associated with breast cancer risk for BRCA1 and BRCA2 mutation carriers, the involvement of these SNPs to breast cancer susceptibility in mutation carriers is currently unknown. To address this, we genotyped these SNPs in BRCA1 and BRCA2 mutation carriers from 42 studies from the Consortium of Investigators of Modifiers of BRCA1/2. In the analysis of 14 123 BRCA1 and 8053 BRCA2 mutation carriers of European ancestry, the 6q25.1 SNPs (r(2) = 0.14) were independently associated with the risk of breast cancer for BRCA1 mutation carriers [hazard ratio (HR) = 1.17, 95% confidence interval (CI): 1.11-1.23, P-trend = 4.5 × 10(-9) for rs2046210; HR = 1.28, 95% CI: 1.18-1.40, P-trend = 1.3 × 10(-8) for rs9397435], but only rs9397435 was associated with the risk for BRCA2 carriers (HR = 1.14, 95% CI: 1.01-1.28, P-trend = 0.031). SNP rs11249433 (1p11.2) was associated with the risk of breast cancer for BRCA2 mutation carriers (HR = 1.09, 95% CI: 1.02-1.17, P-trend = 0.015), but was not associated with breast cancer risk for BRCA1 mutation carriers (HR = 0.97, 95% CI: 0.92-1.02, P-trend = 0.20). SNP rs999737 (RAD51L1) was not associated with breast cancer risk for either BRCA1 or BRCA2 mutation carriers (P-trend = 0.27 and 0.30, respectively). The identification of SNPs at 6q25.1 associated with breast cancer risk for BRCA1 mutation carriers will lead to a better understanding of the biology of tumour development in these women.
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Affiliation(s)
- Antonis C Antoniou
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, UK.
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Vignoli M, Nobili S, Napoli C, Putignano AL, Morganti M, Papi L, Valanzano R, Cianchi F, Tonelli F, Mazzei T, Mini E, Genuardi M. Thymidylate synthase expression and genotype have no major impact on the clinical outcome of colorectal cancer patients treated with 5-fluorouracil. Pharmacol Res 2011; 64:242-8. [PMID: 21536130 DOI: 10.1016/j.phrs.2011.04.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 04/12/2011] [Accepted: 04/14/2011] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND OBJECTIVES Thymidylate synthase (TS) expression levels appear to be related to response to 5-fluorouracil-(5-FU)-based chemotherapy in colorectal cancer (CRC) patients. Three polymorphisms have been proposed as modulators of TS expression: a tandemly repeated sequence (2R/3R) in the 5' UTR, a SNP (G>C) within the 3R allele and a 6bp deletion in the 3' UTR. To evaluate the influence of TS expression and polymorphisms on clinical outcome of 5-FU-treated patients we performed a comprehensive genetic analysis on 63 CRC patients. METHODS TS expression levels were analyzed in normal and tumor tissues. TS coding sequence and UTR polymorphisms were investigated on DNA from normal tissue. LOH analysis was performed to determine tumor genotype. RESULTS A difference in disease-free survival (DFS), although not statistically significant, was observed between high and low mRNA expression levels: patients with low levels showed longer DFS. The 2R2R genotype showed significantly lower expression than the 3R3R and 2R3R genotypes in normal tissue. No other TS polymorphism was associated with mRNA expression or clinical outcome. CONCLUSIONS The results obtained in this pilot study indicate that the number of 5' UTR repeats is the major genetic determinant of TS expression. The lack of association with other polymorphisms might be partially explained by the existence of linkage disequilibrium in the TS gene. Our data support the growing evidence that TS control may require multiple mechanisms acting in close coordination with one another and suggest that TS genotyping alone in tumor samples is not sufficient to accurately predict response to 5-FU.
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Affiliation(s)
- Marina Vignoli
- Fondazione Farmacogenomica Fiorgen, Sesto Fiorentino, Italy; Dipartimento di Fisiopatologia Clinica, Sezione di Genetica Medica, Università di Firenze, Firenze, Italy
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9
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Martrat G, Maxwell CM, Tominaga E, Porta-de-la-Riva M, Bonifaci N, Gómez-Baldó L, Bogliolo M, Lázaro C, Blanco I, Brunet J, Aguilar H, Fernández-Rodríguez J, Seal S, Renwick A, Rahman N, Kühl J, Neveling K, Schindler D, Ramírez MJ, Castellà M, Hernández G, Easton DF, Peock S, Cook M, Oliver CT, Frost D, Platte R, Evans DG, Lalloo F, Eeles R, Izatt L, Chu C, Davidson R, Ong KR, Cook J, Douglas F, Hodgson S, Brewer C, Morrison PJ, Porteous M, Peterlongo P, Manoukian S, Peissel B, Zaffaroni D, Roversi G, Barile M, Viel A, Pasini B, Ottini L, Putignano AL, Savarese A, Bernard L, Radice P, Healey S, Spurdle A, Chen X, Beesley J, Rookus MA, Verhoef S, Tilanus-Linthorst MA, Vreeswijk MP, Asperen CJ, Bodmer D, Ausems MGEM, van Os TA, Blok MJ, Meijers-Heijboer HEJ, Hogervorst FBL, Goldgar DE, Buys S, John EM, Miron A, Southey M, Daly MB, Harbst K, Borg A, Rantala J, Barbany-Bustinza G, Ehrencrona H, Stenmark-Askmalm M, Kaufman B, Laitman Y, Milgrom R, Friedman E, Domchek SM, Nathanson KL, Rebbeck TR, Johannsson OT, Couch FJ, Wang X, Fredericksen Z, Cuadras D, Moreno V, Pientka FK, Depping R, Caldés T, Osorio A, Benítez J, Bueren J, Heikkinen T, Nevanlinna H, Hamann U, Torres D, Caligo MA, Godwin AK, Imyanitov EN, Janavicius R, Sinilnikova OM, Stoppa-Lyonnet D, Mazoyer S, Verny-Pierre C, Castera L, de Pauw A, Bignon YJ, Uhrhammer N, Peyrat JP, Vennin P, Ferrer SF, Collonge-Rame MA, Mortemousque I, McGuffog L, Chenevix-Trench G, Pereira-Smith OM, Antoniou AC, Cerón J, Tominaga K, Surrallés J, Pujana MA. Exploring the link between MORF4L1 and risk of breast cancer. Breast Cancer Res 2011; 13:R40. [PMID: 21466675 PMCID: PMC3219203 DOI: 10.1186/bcr2862] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2010] [Revised: 02/17/2011] [Accepted: 04/05/2011] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Proteins encoded by Fanconi anemia (FA) and/or breast cancer (BrCa) susceptibility genes cooperate in a common DNA damage repair signaling pathway. To gain deeper insight into this pathway and its influence on cancer risk, we searched for novel components through protein physical interaction screens. METHODS Protein physical interactions were screened using the yeast two-hybrid system. Co-affinity purifications and endogenous co-immunoprecipitation assays were performed to corroborate interactions. Biochemical and functional assays in human, mouse and Caenorhabditis elegans models were carried out to characterize pathway components. Thirteen FANCD2-monoubiquitinylation-positive FA cell lines excluded for genetic defects in the downstream pathway components and 300 familial BrCa patients negative for BRCA1/2 mutations were analyzed for genetic mutations. Common genetic variants were genotyped in 9,573 BRCA1/2 mutation carriers for associations with BrCa risk. RESULTS A previously identified co-purifying protein with PALB2 was identified, MRG15 (MORF4L1 gene). Results in human, mouse and C. elegans models delineate molecular and functional relationships with BRCA2, PALB2, RAD51 and RPA1 that suggest a role for MRG15 in the repair of DNA double-strand breaks. Mrg15-deficient murine embryonic fibroblasts showed moderate sensitivity to γ-irradiation relative to controls and reduced formation of Rad51 nuclear foci. Examination of mutants of MRG15 and BRCA2 C. elegans orthologs revealed phenocopy by accumulation of RPA-1 (human RPA1) nuclear foci and aberrant chromosomal compactions in meiotic cells. However, no alterations or mutations were identified for MRG15/MORF4L1 in unclassified FA patients and BrCa familial cases. Finally, no significant associations between common MORF4L1 variants and BrCa risk for BRCA1 or BRCA2 mutation carriers were identified: rs7164529, Ptrend = 0.45 and 0.05, P2df = 0.51 and 0.14, respectively; and rs10519219, Ptrend = 0.92 and 0.72, P2df = 0.76 and 0.07, respectively. CONCLUSIONS While the present study expands on the role of MRG15 in the control of genomic stability, weak associations cannot be ruled out for potential low-penetrance variants at MORF4L1 and BrCa risk among BRCA2 mutation carriers.
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Affiliation(s)
- Griselda Martrat
- Translational Research Laboratory, Catalan Institute of Oncology, Bellvitge Institute for Biomedical Research (IDIBELL), Gran Via 199, L'Hospitalet del Llobregat 08908, Spain
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10
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Papi L, Palli D, Masi L, Putignano AL, Congregati C, Zanna I, Marini F, Giusti F, Luzi E, Tonelli F, Genuardi M, Brandi ML, Falchetti A. Germline mutations in MEN1 and BRCA1 genes in a woman with familial multiple endocrine neoplasia type 1 and inherited breast-ovarian cancer syndromes: a case report. ACTA ACUST UNITED AC 2009; 195:75-9. [PMID: 19837273 DOI: 10.1016/j.cancergencyto.2009.06.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Revised: 06/17/2009] [Accepted: 06/20/2009] [Indexed: 12/21/2022]
Abstract
The simultaneous occurrence of mutations in two different tumor suppressor genes in the same individual is a very rare event. Here we report the case of a woman in whom germline mutations in both MEN1 and BRCA1 were identified. The severity of MEN1-related biochemical and clinical findings did not significantly differ from that for other affected family members lacking the BRCA1 mutation, except for the development of an extremely large visceral lipoma; the proband has not developed any BRCA1-related malignancies. We explore genetic and molecular rationales for an association between these neoplastic processes.
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Affiliation(s)
- Laura Papi
- Medical Genetics Unit, Department of Clinical Pathophysiology, University of Florence, Florence, Italy
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11
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Papi L, Putignano AL, Congregati C, Piaceri I, Zanna I, Sera F, Morrone D, Genuardi M, Palli D. A PALB2 germline mutation associated with hereditary breast cancer in Italy. Fam Cancer 2009; 9:181-5. [PMID: 19763884 DOI: 10.1007/s10689-009-9295-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Accepted: 09/09/2009] [Indexed: 12/16/2022]
Abstract
Recently, it has been demonstrated that monoallelic PALB2 mutations predispose to familial breast cancer. We investigated the contribution of PALB2 mutations in a set of 132 Italian BRCA1/BRCA2-negative breast cancer families; one truncating PALB2 mutation, c.2257C>T, resulting in p.Arg753X, was identified in a woman and her daughter, with breast cancer diagnosed at 60 and 31 years old, respectively. This study supports the recent observation that PALB2 mutation are present, although infrequently, in familial BRCA1/BRCA2-negative breast cancer cases; moreover, it sustains latest evidences that some PALB2 mutations are associated with a substantially increased risk of breast cancer.
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Affiliation(s)
- Laura Papi
- Medical Genetics Unit, Department of Clinical Physiopathology, University of Florence, Viale Pieraccini, 6, 50139 Florence, Italy
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12
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Papi L, Putignano AL, Congregati C, Zanna I, Sera F, Morrone D, Falchetti M, Turco MRD, Ottini L, Palli D, Genuardi M. Founder mutations account for the majority of BRCA1-attributable hereditary breast/ovarian cancer cases in a population from Tuscany, Central Italy. Breast Cancer Res Treat 2008; 117:497-504. [PMID: 18821011 DOI: 10.1007/s10549-008-0190-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Accepted: 09/05/2008] [Indexed: 12/12/2022]
Abstract
BACKGROUND Germline mutations in the BRCA1 and BRCA2 tumour-suppressor genes predispose to early-onset breast and ovarian cancer. Although both genes display a highly heterogeneous mutation spectrum, a number of alterations recur in some populations. Only a limited number of founder mutations have been identified in the Italian population so far. OBJECTIVE To investigate the spectrum of BRCA1/BRCA2 mutations in a set of families originary from the Central-Eastern part of Tuscany and to ascertain the presence of founder effects. We also wanted to approximate the age of the most frequent BRCA1 founder mutation. RESULTS Overall, four distinct BRCA1 mutations accounted for a large fraction (72.7%) of BRCA1-attributable hereditary breast/ovarian cancer in families originary from this area. We identified common haplotypes for two newly recognised recurrent BRCA1 mutations, c.3228_3229delAG and c.3285delA. The c.3228_3229delAG mutation was estimated to have originated about 129 generations ago. Interestingly, male breast cancer cases were present in 3 out of 11 families with the c.3228_3229delAG mutation. CONCLUSIONS The observation that a high proportion of families with BRCA1 alterations from Central-Eastern Tuscany harbours a limited number of founder mutations can have significant impact on clinical management of at risk subjects from this area. In addition, the identification of a large set of families carrying an identical mutation that predisposes to breast and ovarian cancer provides unique opportunities to study the effect of other genetic and environmental factors on penetrance and disease phenotype.
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Affiliation(s)
- Laura Papi
- Medical Genetics Unit, Department of Clinical Physiopathology, University of Florence, Viale Pieraccini, 6, 50139 Florence, Italy.
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13
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Tedde A, Laura Putignano A, Bagnoli S, Congregati C, Milla M, Sorbi S, Genuardi M, Papi L. Interleukin-10 promoter polymorphisms influence susceptibility to ulcerative colitis in a gender-specific manner. Scand J Gastroenterol 2008; 43:712-8. [PMID: 18569989 DOI: 10.1080/00365520701885507] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Pathological evidence supports a potential role of the pro- and anti-inflammatory cytokine network in the pathogenesis of inflammatory bowel disease (IBD). Moreover, associated studies suggest a possible involvement of cytokine-related genes in IBD susceptibility. In this study, we evaluated the effect of the anti-inflammatory interleukin-10 (IL10) gene on ulcerative colitis (UC). MATERIAL AND METHODS Two functional single nucleotide polymorphisms (-1082 G/A, -819 T/C) in the IL10 promoter in 203 Italian sporadic UC patients and 391 controls were determined using high-resolution melting analysis. RESULTS The frequency of the -1082A allele was significantly higher in the UC patients than in controls (p=0.00003); -1082 genotype frequencies were also significantly different between UC patients and controls (p=0.0001). Allele and genotype frequencies of -819 T/C were not significantly associated with UC. Furthermore, the frequencies of haplotypes -1082A/-819C and -1082A/-819T, which have been reported to have a lower promoter activity, were significantly higher in UC patients than in controls (p=0.0004). After gender stratification, we found a significant difference in the -1082A allele (p=0.00004) and genotype (p=0.0002) frequencies only between female UC patients and controls; the same result was obtained for the -1082A/-819C and -1082A/-819T haplotypes (p=0.0006). CONCLUSIONS A gender effect is observed, with women of AG/AA IL10 genotypes and AC/AT haplotypes having a higher risk of developing UC at a younger age. This finding could be related to the previously documented lower IL10 production associated with the -1082A allele and to the IL10 down-regulating effect of estrogens.
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Affiliation(s)
- Andrea Tedde
- Neurogenetics Unit, Department of Neurological and Psychiatric Sciences, University of Florence, Italy
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Sestini R, Putignano AL, Ammannati F, Papi L. Detection of rearrangements in the NF2 gene using semi-quantitative multiplex fluorescent PCR. ACTA ACUST UNITED AC 2005; 9:14-9. [PMID: 15857181 DOI: 10.1089/gte.2005.9.14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Neurofibromatosis type 2 (NF2) is an autosomal dominant disorder that predisposes to the development of bilateral vestibular schwannomas (sometimes associated with schwannomas at other locations), meningiomas, and ependymomas. Point mutations that inactivate the NF2 tumor suppressor gene, located in 22q12, have been found in 45-85% of NF2 patients; in addition, large genomic deletions can be found. To evaluate the presence of genomic NF2 rearrangements, we have developed a fluorescent semiquantitative multiplex PCR method. Briefly, short fragments corresponding to the 17 exons, the promoter region, and the 3' end of the NF2 gene were co-amplified by PCR using dye primers. An additional fragment, corresponding to another gene used as an internal control, was systematically amplified in each multiplex PCR. Initially, we validated the method by using monosomic 22q and trisomic 22 samples. The fluorescent multiplex PCR method was then used to analyze 21 NF2 individuals in which single-strand conformational polymorphism (SSCP) analysis and/or direct sequencing had revealed no NF2 point mutations; we were able to detect two deletions and one duplication in NF2 in 3 patients. In conclusion, the method we developed could easily be applied in detecting NF2 deletions and duplications. Discovering genomic duplications is invaluable because they are probably the most difficult molecular alterations to detect with conventional methods and, as a consequence, might be an underestimated cause of NF2.
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Affiliation(s)
- Roberta Sestini
- Department of Clinical Physiopathology, Medical Genetics Unit, University of Florence, Italy
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Bagnoli S, Putignano AL, Melean G, Baglioni S, Sestini R, Milla M, d'Albasio G, Genuardi M, Pacini F, Trallori G, Papi L. Susceptibility to refractory ulcerative colitis is associated with polymorphism in the hMLH1 mismatch repair gene. Inflamm Bowel Dis 2004; 10:705-8. [PMID: 15626886 DOI: 10.1097/00054725-200411000-00001] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The hMLH1 gene lies in the linkage susceptibility region to inflammatory bowel disease (IBD) on 3p21. A single nucleotide polymorphism, 655A>G, in exon 8 of the gene causes an I219V change in the MLH1 protein. To test whether hMLH1 may confer susceptibility to ulcerative colitis (UC), we investigated an association between the 655A>G polymorphism and the disease. DNA-based technologies were used to analyze the 655A>G polymorphism in 201 UC patients and 126 healthy ethnically matched controls. The comparison of the allelic frequencies of the 655A>G polymorphism in UC patients and healthy controls did not show significant differences. However, genotype frequencies at the hMLH1 655 position were found to be significantly different when patients with and without refractory UC were compared. This was mainly attributable to a higher level of homozygosity for the G allele in refractory UC patients. Almost 5 times as many (4.9 times) refractory UC patients carried the GG genotype compared with nonrefractory patients (P < 0.0001). The present study provides evidence that the hMLH1 gene is involved in genetic susceptibility to refractory UC. If confirmed by other studies, the GG genotype at position 655 of the hMLH1 gene may represent a useful predictive factor for the clinical management of UC patients.
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Affiliation(s)
- Siro Bagnoli
- Gastroenterology Unit, Careggi Hospital, Florence, Italy
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