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Sperelakis-Beedham B, Ruaud L, Vial Y, Rachid M, Ageorges F, Goujon L, Verloes A, Tabet AC, Bourrat E, Lévy J. Expanding the phenotype of GTF2E2-associated trichothiodystrophy. J Eur Acad Dermatol Venereol 2024; 38:e222-e226. [PMID: 37793898 DOI: 10.1111/jdv.19545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/26/2023] [Indexed: 10/06/2023]
Affiliation(s)
- Brian Sperelakis-Beedham
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
- Plateforme SeqOIA, AP-HP, Paris, France
| | - Lyse Ruaud
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Yoann Vial
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Myriam Rachid
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
- Neuroscience Department, Human Genetics and Cognitive Function Unit, Pasteur Institute, Paris, France
| | - Faustine Ageorges
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Louise Goujon
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Alain Verloes
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
- Plateforme SeqOIA, AP-HP, Paris, France
- Neuroscience Department, Human Genetics and Cognitive Function Unit, Pasteur Institute, Paris, France
| | | | - Jonathan Lévy
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
- Plateforme SeqOIA, AP-HP, Paris, France
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2
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Courdier C, Boudjarane J, Malan V, Muti C, Sperelakis-Beedham B, Odent S, Jaillard S, Quelin C, Le Caignec C, Patat O, Dubucs C, Julia S, Schluth-Bolard C, Goumy C, Redon S, Gaillard JB, Huynh MT, Dupont C, Tabet AC, Cogan G, Vialard F, Dard R, Jedraszak G, Jobic F, Lefebvre M, Quenum G, Inai S, Rama M, Sauvestre F, Coatleven F, Thomas J, Rooryck C. Antenatal ultrasound features of isolated recurrent copy number variation in 7q11.23 (Williams syndrome and 7q11.23 duplication syndrome). Prenat Diagn 2023; 43:734-745. [PMID: 36914926 DOI: 10.1002/pd.6340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/14/2022] [Revised: 02/28/2023] [Accepted: 03/06/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVE We aimed to gather fetal cases carrying a 7q11.23 copy number variation (CNV) and collect precise clinical data to broaden knowledge of antenatal features in these syndromes. METHODS We retrospectively recruited unrelated cases with 7q11.23 deletion, known as Williams-Beuren syndrome (WBS), or 7q11.23 duplication who had prenatal ultrasound findings. We collected laboratory and clinical data, fetal ultrasound, cardiac ultrasound and fetal autopsy reports from 18 prenatal diagnostic centers throughout France. RESULTS 40 fetuses with WBS were collected and the most common features were intra-uterine growth retardation (IUGR) (70.0%, 28/40), cardiovascular defects (30.0%, 12/40), polyhydramnios (17.5%, 7/40) and protruding tongue (15.0%, 6/40). Fetal autopsy reports were available for 11 cases and were compared with ultrasound prenatal features. Four cases of fetuses with 7q11.23 microduplication were collected and prenatal ultrasound signs were variable and often isolated. CONCLUSION This work strengthens the fact that 7q11.23 CNVs are associated with a broad spectrum of antenatal presentations. IUGR and cardiovascular defects were the most frequent ultrasound signs. By reporting the biggest series of antenatal WBS, we aim to better delineate distinctive signs in fetuses with 7q11.23 CNVs.
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Affiliation(s)
- Cécile Courdier
- Service de Génétique médicale, CHU Bordeaux, Bordeaux, France
| | - John Boudjarane
- Laboratoire de Cytogénétique, Département de Génétique Médicale, Hôpital Timone Enfants, AP-HM, Marseille, France
| | - Valérie Malan
- Service de Médecine Génomique des Maladies Rares, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Christine Muti
- Unité de Génétique, Centre hospitalier de Versailles, Versailles, France
| | | | - Sylvie Odent
- Service de Génétique clinique, CHU de Rennes, Rennes, France
| | - Sylvie Jaillard
- Service de Cytogénétique et Biologie Cellulaire, CHU de Rennes, Rennes, France
| | - Chloé Quelin
- Service de Génétique clinique, CHU de Rennes, Rennes, France
| | - Cédric Le Caignec
- Service de Génétique médicale, Hôpital Purpan, CHU de Toulouse, Toulouse, France
| | - Olivier Patat
- Service de Génétique médicale, Hôpital Purpan, CHU de Toulouse, Toulouse, France
| | - Charlotte Dubucs
- Service de Génétique médicale, Hôpital Purpan, CHU de Toulouse, Toulouse, France
| | - Sophie Julia
- Service de Génétique médicale, Hôpital Purpan, CHU de Toulouse, Toulouse, France
| | - Caroline Schluth-Bolard
- Service de Génétique, Laboratoire de Cytogénétique Constitutionnelle, Centre de Biologie et de Pathologie Est, Hospices Civils de Lyon, Bron, France
- Laboratoire de Diagnostic Génétique, Institut de Génétique Médicale d'Alsace, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Carole Goumy
- Service de Cytogénétique Médicale, CHU d'Estaing, Clermont-Ferrand, France
| | - Sylvia Redon
- Laboratoire de Génétique Moléculaire et d'histocompatibilité, INSERM U1078, CHRU Morvan, Brest, France
| | | | - Minh Tuan Huynh
- Laboratoire de Génétique médicale, CHU de Nantes, Nantes, France
| | - Céline Dupont
- Unité fonctionnelle de Cytogénétique, Département de Génétique, Hôpital Robert Debré, AP-HP, Paris, France
| | - Anne-Claude Tabet
- Unité fonctionnelle de Cytogénétique, Département de Génétique, Hôpital Robert Debré, AP-HP, Paris, France
| | - Guillaume Cogan
- Unité fonctionnelle de Cytogénétique, Département de Génétique, Hôpital Robert Debré, AP-HP, Paris, France
| | - François Vialard
- Département de Génétique, Laboratoire de Biologie médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - Rodolphe Dard
- Département de Génétique, Laboratoire de Biologie médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - Guillaume Jedraszak
- Laboratoire de Génétique Constitutionnelle, CHU d'Amiens, Amiens, France
- HEMATIM UR4666, Centre Universitaire de Recherche en Santé, Université de Picardie Jules Verne, Amiens, France
| | - Florence Jobic
- Service de Génétique Clinique et Oncogénétique, CHU d'Amiens, Amiens, France
| | | | - Geneviève Quenum
- Laboratoire de cytogénétique, Hôpital Armand Trousseau, Paris, France
| | - Saori Inai
- Service de Gynécologie, CH de Libourne, Libourne, France
| | - Mélanie Rama
- Institut de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU Lille, Lille, France
| | - Fanny Sauvestre
- Unité de Fœtopathologie, Service de Pathologie, CHU de Bordeaux, Bordeaux, France
| | | | - Julie Thomas
- Service des maladies Cardio-vasculaires congénitales, Hôpital Haut Lévêque, Bordeaux, France
| | - Caroline Rooryck
- Service de Génétique médicale, CHU Bordeaux, Bordeaux, France
- Univ. Bordeaux, Maladies Rares: Génétique et Métabolisme (MRGM), INSERM U1211, Bordeaux, France
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3
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Bouassida M, Egloff M, Levy J, Chatron N, Bernardini L, Le Guyader G, Tabet AC, Schluth-Bolard C, Brancati F, Giuffrida MG, Dard R, Clorennec J, Coursimault J, Vialard F, Hervé B. 2p25.3 microduplications involving MYT1L: further phenotypic characterization through an assessment of 16 new cases and a literature review. Eur J Hum Genet 2023:10.1038/s41431-023-01379-9. [PMID: 37188826 PMCID: PMC10400587 DOI: 10.1038/s41431-023-01379-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 04/03/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
Microduplications involving the MYT1L gene have mostly been described in series of patients with isolated schizophrenia. However, few reports have been published, and the phenotype has still not been well characterized. We sought to further characterize the phenotypic spectrum of this condition by describing the clinical features of patients with a pure 2p25.3 microduplication that includes all or part of MYT1L. We assessed 16 new patients with pure 2p25.3 microduplications recruited through a French national collaboration (n = 15) and the DECIPHER database (n = 1). We also reviewed 27 patients reported in the literature. For each case, we recorded clinical data, the microduplication size, and the inheritance pattern. The clinical features were variable and included developmental and speech delays (33%), autism spectrum disorder (ASD, 23%), mild-to-moderate intellectual disability (ID, 21%), schizophrenia (23%), or behavioral disorders (16%). Eleven patients did not have an obvious neuropsychiatric disorder. The microduplications ranged from 62.4 kb to 3.8 Mb in size and led to duplication of all or part of MYT1L; seven of these duplications were intragenic. The inheritance pattern was available for 18 patients: the microduplication was inherited in 13 cases, and all parents but one had normal phenotype. Our comprehensive review and expansion of the phenotypic spectrum associated with 2p25.3 microduplications involving MYT1L should help clinicians to better assess, counsel and manage affected individuals. MYT1L microduplications are characterized by a spectrum of neuropsychiatric phenotypes with incomplete penetrance and variable expressivity, which are probably due to as-yet unknown genetic and nongenetic modifiers.
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Affiliation(s)
- Malek Bouassida
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy-St Germain en Laye, F-78300, Poissy, France.
| | - Matthieu Egloff
- Service de Génétique, Centre Hospitalier Universitaire de Poitiers, F-86021, Poitiers, France
| | - Jonathan Levy
- Département de Génétique, Hôpital Robert Debré, APHP, F-75019, Paris, France
| | - Nicolas Chatron
- Service de cytogénétique, Groupement Hospitalier Est, Hospices Civils de Lyon, F-69500, Bron, France
| | | | - Gwenaël Le Guyader
- Service de Génétique, Centre Hospitalier Universitaire de Poitiers, F-86021, Poitiers, France
| | - Anne-Claude Tabet
- Département de Génétique, Hôpital Robert Debré, APHP, F-75019, Paris, France
| | - Caroline Schluth-Bolard
- Service de cytogénétique, Groupement Hospitalier Est, Hospices Civils de Lyon, F-69500, Bron, France
| | - Francesco Brancati
- Department of Life, Health and Environmental Sciences, University of L'Aquila Piazzale Salvatore Tommasi, It-67100, Coppito - L'Aquila, Italy
- San Raffaele Roma, IRCCS, It-00163, Roma, Italy
| | | | - Rodolphe Dard
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy-St Germain en Laye, F-78300, Poissy, France
- RHuMA Team, UMR-BREED, INRA-UVSQ-ENVA, UFR Simone Veil Santé, F-78380, Montigny-le-Bretonneux, France
| | - Juliette Clorennec
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy-St Germain en Laye, F-78300, Poissy, France
- RHuMA Team, UMR-BREED, INRA-UVSQ-ENVA, UFR Simone Veil Santé, F-78380, Montigny-le-Bretonneux, France
| | - Juliette Coursimault
- Department of Genetics and Reference Center for Developmental Disorders, Normandie Univ, UNIROUEN, Inserm U1245 and CHU Rouen, F-76000, Rouen, France
| | - François Vialard
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy-St Germain en Laye, F-78300, Poissy, France.
- RHuMA Team, UMR-BREED, INRA-UVSQ-ENVA, UFR Simone Veil Santé, F-78380, Montigny-le-Bretonneux, France.
| | - Bérénice Hervé
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy-St Germain en Laye, F-78300, Poissy, France
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4
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Vitrac A, Leblond CS, Rolland T, Cliquet F, Mathieu A, Maruani A, Delorme R, Schön M, Grabrucker AM, van Ravenswaaij-Arts C, Phelan K, Tabet AC, Bourgeron T. Dissecting the 22q13 region to explore the genetic and phenotypic diversity of patients with Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104732. [PMID: 36822569 DOI: 10.1016/j.ejmg.2023.104732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 02/25/2023]
Abstract
SHANK3-related Phelan-McDermid syndrome (PMS) is caused by a loss of the distal part of chromosome 22, including SHANK3, or by a pathological SHANK3 variant. There is an important genetic and phenotypic diversity among patients who can present with developmental delay, language impairments, autism, epilepsy, and other symptoms. SHANK3, encoding a synaptic scaffolding protein, is deleted in the majority of patients with PMS and is considered a major gene involved in the neurological impairments of the patients. However, differences in deletion size can influence clinical features, and in some rare cases, deletions at the 22q13 locus in individuals with SHANK3-unrelated PMS do not encompass SHANK3. These individuals with SHANK3-unrelated PMS still display a PMS-like phenotype. This suggests the participation of other 22q13 genes in the pathogenesis of PMS. Here, we review the biological function and potential implication in PMS symptoms of 110 genes located in the 22q13 region, focusing on 35 genes with evidence for association with neurodevelopmental disorders, including 13 genes for epilepsy and 11 genes for microcephaly and/or macrocephaly. Our review is restricted to the 22q13 region, but future large-scale studies using whole genome sequencing and deep-phenotyping are warranted to develop predictive models of clinical trajectories and to target specific medical and educational care for each individual with PMS.
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Affiliation(s)
- Aline Vitrac
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France.
| | - Claire S Leblond
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Thomas Rolland
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Freddy Cliquet
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Alexandre Mathieu
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Anna Maruani
- Department of Child and Adolescent Psychiatry, Hôpital Robert Debré, APHP, Paris, France
| | - Richard Delorme
- Department of Child and Adolescent Psychiatry, Hôpital Robert Debré, APHP, Paris, France
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Andreas M Grabrucker
- Bernal Institute, University of Limerick, Limerick, Ireland; Dept. of Biological Sciences, University of Limerick, Limerick, Ireland; Health Research Institute HRI, University of Limerick, Limerick, Ireland
| | - Conny van Ravenswaaij-Arts
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, Netherlands
| | - Katy Phelan
- Genetics Laboratory, Florida Cancer Specialists & Research Institute, Fort Myers, FL, 33916, USA
| | | | - Thomas Bourgeron
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France.
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5
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Jacquin C, Landais E, Poirsier C, Afenjar A, Akhavi A, Bednarek N, Bénech C, Bonnard A, Bosquet D, Burglen L, Callier P, Chantot-Bastaraud S, Coubes C, Coutton C, Delobel B, Descharmes M, Dupont JM, Gatinois V, Gruchy N, Guterman S, Heddar A, Herissant L, Heron D, Isidor B, Jaeger P, Jouret G, Keren B, Kuentz P, Le Caignec C, Levy J, Lopez N, Manssens Z, Martin-Coignard D, Marey I, Mignot C, Missirian C, Pebrel-Richard C, Pinson L, Puechberty J, Redon S, Sanlaville D, Spodenkiewicz M, Tabet AC, Verloes A, Vieville G, Yardin C, Vialard F, Doco-Fenzy M. 1p36 deletion syndrome: Review and mapping with further characterization of the phenotype, a new cohort of 86 patients. Am J Med Genet A 2023; 191:445-458. [PMID: 36369750 PMCID: PMC10100125 DOI: 10.1002/ajmg.a.63041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 12/15/2021] [Revised: 08/29/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022]
Abstract
Chromosome 1p36 deletion syndrome (1p36DS) is one of the most common terminal deletion syndromes (incidence between 1/5000 and 1/10,000 live births in the American population), due to a heterozygous deletion of part of the short arm of chromosome 1. The 1p36DS is characterized by typical craniofacial features, developmental delay/intellectual disability, hypotonia, epilepsy, cardiomyopathy/congenital heart defect, brain abnormalities, hearing loss, eyes/vision problem, and short stature. The aim of our study was to (1) evaluate the incidence of the 1p36DS in the French population compared to 22q11.2 deletion syndrome and trisomy 21; (2) review the postnatal phenotype related to microarray data, compared to previously publish prenatal data. Thanks to a collaboration with the ACLF (Association des Cytogénéticiens de Langue Française), we have collected data of 86 patients constituting, to the best of our knowledge, the second-largest cohort of 1p36DS patients in the literature. We estimated an average of at least 10 cases per year in France. 1p36DS seems to be much less frequent than 22q11.2 deletion syndrome and trisomy 21. Patients presented mainly dysmorphism, microcephaly, developmental delay/intellectual disability, hypotonia, epilepsy, brain malformations, behavioral disorders, cardiomyopathy, or cardiovascular malformations and, pre and/or postnatal growth retardation. Cardiac abnormalities, brain malformations, and epilepsy were more frequent in distal deletions, whereas microcephaly was more common in proximal deletions. Mapping and genotype-phenotype correlation allowed us to identify four critical regions responsible for intellectual disability. This study highlights some phenotypic variability, according to the deletion position, and helps to refine the phenotype of 1p36DS, allowing improved management and follow-up of patients.
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Affiliation(s)
- Clémence Jacquin
- Service de Génétique, CRMR AnDDI-Rares, CHU Reims, Reims, France
| | - Emilie Landais
- Service de Génétique, CRMR AnDDI-Rares, CHU Reims, Reims, France
| | - Céline Poirsier
- Service de Génétique, CRMR AnDDI-Rares, CHU Reims, Reims, France
| | - Alexandra Afenjar
- Centre de Référence des Malformations et Maladies Congénitales du Cervelet, Département de Génétique et Embryologie Médicale, APHP, Hôpital Trousseau, Paris, France
| | - Ahmad Akhavi
- Cardiologie pédiatrique et congénitale, CHU Reims, Reims, France
| | - Nathalie Bednarek
- Service de pédiatrie, Pôle Femme Parents Enfants, CHU Reims, Reims, France.,CReSTIC/EA 3804, URCA, Reims, France
| | - Caroline Bénech
- University of Brest, Inserm, EFS, UMR 1078, GGB, Brest, France
| | - Adeline Bonnard
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Damien Bosquet
- Service de Génétique, Hospices Civils de Lyon, Bron, France
| | - Lydie Burglen
- Centre de Référence des Malformations et Maladies Congénitales du Cervelet, Département de Génétique et Embryologie Médicale, APHP, Hôpital Trousseau, Paris, France
| | | | - Sandra Chantot-Bastaraud
- AP-HP Sorbonne Université, Département de Génétique Médicale, Hôpital Armand Trousseau, Paris, France
| | - Christine Coubes
- Département de Génétique Médicale, Maladies Rares et Médecine Personnalisée, Génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SOOR, Montpellier, France
| | - Charles Coutton
- Département de Génétique et Procréation, Hôpital Couple Enfant, CHU Grenoble-Alpes, Grenoble, France.,Genetic Epigenetic and Therapies of Infertility team, Institute for Advanced Biosciences, Inserm U 1209, CNRS UMR 5309, Université Grenoble Alpes, Grenoble, France
| | - Bruno Delobel
- Centre de Génétique Chromosomique, GH de l'Institut Catholique de Lille-Hopital Saint Vincent de Paul, Lille, France
| | - Margaux Descharmes
- Service de pédiatrie, Pôle Femme Parents Enfants, CHU Reims, Reims, France
| | - Jean-Michel Dupont
- Laboratoire de Cytogénétique Constitutionnelle, APHP. Centre-Université Paris Cité site Cochin, Paris, France
| | - Vincent Gatinois
- Plateforme ChromoStem, Unité de génétique chromosomique, Département de génétique moléculaire et cytogénomique, CHU de Montpellier, Université de Montpellier, Montpellier, France
| | - Nicolas Gruchy
- Service de Génétique, CHU Caen, Université Caen Normandie, Caen, France
| | - Sarah Guterman
- Département de Génétique, Centre Hospitalier Intercommunal Poissy-St-Germain-en-Laye, Poissy, France
| | - Abdelkader Heddar
- Laboratoire de Cytogénétique Constitutionnelle, APHP. Centre-Université Paris Cité site Cochin, Paris, France
| | - Lucas Herissant
- Service de Génétique, CRMR AnDDI-Rares, CHU Reims, Reims, France
| | - Delphine Heron
- AP-HP Sorbonne Université, Département de Génétique Médicale, Hôpital Armand Trousseau, Paris, France.,Département de Génétique; Centre de Référence Déficience Intellectuelle de Causes Rares, APHP Sorbonne Université, GH Pitié-Salpêtrière, Paris, France
| | - Bertrand Isidor
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | - Pauline Jaeger
- Service de Génétique, Hospices Civils de Lyon, Bron, France
| | - Guillaume Jouret
- National Center of Genetics, Laboratoire National de Santé, Dudelange, Luxembourg
| | - Boris Keren
- Département de Génétique; Centre de Référence Déficience Intellectuelle de Causes Rares, APHP Sorbonne Université, GH Pitié-Salpêtrière, Paris, France
| | - Paul Kuentz
- Oncobiologie Génétique Bioinformatique, CHU de Besançon, Besançon, France
| | | | - Jonathan Levy
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Nathalie Lopez
- Service de neuropédiatrie, Hôpital Armand Trousseau, Groupe Hospitalier Universitaire de l'Est Parisien, Paris, France
| | - Zoe Manssens
- Centre de Génétique Chromosomique, GH de l'Institut Catholique de Lille-Hopital Saint Vincent de Paul, Lille, France
| | | | - Isabelle Marey
- Département de Génétique et Procréation, Hôpital Couple Enfant, CHU Grenoble-Alpes, Grenoble, France
| | - Cyril Mignot
- AP-HP Sorbonne Université, Département de Génétique Médicale, Hôpital Armand Trousseau, Paris, France.,Département de Génétique; Centre de Référence Déficience Intellectuelle de Causes Rares, APHP Sorbonne Université, GH Pitié-Salpêtrière, Paris, France
| | - Chantal Missirian
- Laboratoire de Génétique Chromosomique, Département de Génétique Médicale, AP- HM, Marseille, France
| | - Céline Pebrel-Richard
- Service de Cytogénétique Médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Lucile Pinson
- Département de Génétique Médicale, Maladies Rares et Médecine Personnalisée, Génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SOOR, Montpellier, France
| | - Jacques Puechberty
- Département de Génétique Médicale, Maladies Rares et Médecine Personnalisée, Génétique clinique, CHU Montpellier, Université Montpellier, Centre de référence anomalies du développement SOOR, Montpellier, France
| | - Sylvia Redon
- University of Brest, Inserm, EFS, UMR 1078, GGB, Brest, France.,Service de Génétique Médicale et Biologie de la Reproduction, CHU de Brest, Brest, France
| | | | | | | | - Alain Verloes
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Gaelle Vieville
- Département de Génétique et Procréation, Hôpital Couple Enfant, CHU Grenoble-Alpes, Grenoble, France
| | - Catherine Yardin
- Department of Cytogenetics and clinical genetics, Limoges University Hospital, University of Limoges, Limoges, France
| | - François Vialard
- Département de Génétique, Centre Hospitalier Intercommunal Poissy-St-Germain-en-Laye, Poissy, France.,RHuMA, UMR BREED, INRAE-UVSQ-ENVA, Montigny-le-bretonneux, France
| | - Martine Doco-Fenzy
- Service de Génétique, CRMR AnDDI-Rares, CHU Reims, Reims, France.,Service de génétique médicale, CHU de Nantes, Nantes, France.,L'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU de Nantes, Nantes, France
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6
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Jouret G, Egloff M, Landais E, Tassy O, Giuliano F, Karmous-Benailly H, Coutton C, Satre V, Devillard F, Dieterich K, Vieville G, Kuentz P, le Caignec C, Beneteau C, Isidor B, Nizon M, Callier P, Marquet V, Bieth E, Lévy J, Tabet AC, Lyonnet S, Baujat G, Rio M, Cartault F, Scheidecker S, Gouronc A, Schalk A, Jacquin C, Spodenkiewicz M, Angélini C, Pennamen P, Rooryck C, Doco-Fenzy M, Poirsier C. Clinical and genomic delineation of the new proximal 19p13.3 microduplication syndrome. Am J Med Genet A 2023; 191:52-63. [PMID: 36196855 DOI: 10.1002/ajmg.a.62983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/16/2022] [Revised: 08/16/2022] [Accepted: 09/20/2022] [Indexed: 12/14/2022]
Abstract
A small but growing body of scientific literature is emerging about clinical findings in patients with 19p13.3 microdeletion or duplication. Recently, a proximal 19p13.3 microduplication syndrome was described, associated with growth delay, microcephaly, psychomotor delay and dysmorphic features. The aim of our study was to better characterize the syndrome associated with duplications in the proximal 19p13.3 region (prox 19p13.3 dup), and to propose a comprehensive analysis of the underlying genomic mechanism. We report the largest cohort of patients with prox 19p13.3 dup through a collaborative study. We collected 24 new patients with terminal or interstitial 19p13.3 duplication characterized by array-based Comparative Genomic Hybridization (aCGH). We performed mapping, phenotype-genotype correlations analysis, critical region delineation and explored three-dimensional chromatin interactions by analyzing Topologically Associating Domains (TADs). We define a new 377 kb critical region (CR 1) in chr19: 3,116,922-3,494,377, GRCh37, different from the previously described critical region (CR 2). The new 377 kb CR 1 includes a TAD boundary and two enhancers whose common target is PIAS4. We hypothesize that duplications of CR 1 are responsible for tridimensional structural abnormalities by TAD disruption and misregulation of genes essentials for the control of head circumference during development, by breaking down the interactions between enhancers and the corresponding targeted gene.
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Affiliation(s)
- Guillaume Jouret
- Department of Genetics, Reims University Hospital, Reims, France.,National Center of Genetics (NCG), Laboratoire national de santé (LNS), Dudelange, Luxembourg
| | - Matthieu Egloff
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - Emilie Landais
- Department of Genetics, Reims University Hospital, Reims, France
| | | | | | | | - Charles Coutton
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France.,ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France
| | - Véronique Satre
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Françoise Devillard
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Klaus Dieterich
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Gaëlle Vieville
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Paul Kuentz
- Génétique Biologique, PCBio, Besançon University Hospital, Besançon, France
| | - Cédric le Caignec
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Nantes University Hospital, Nantes, France
| | - Claire Beneteau
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Bertrand Isidor
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Mathilde Nizon
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Patrick Callier
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Dijon University Hospital, Dijon, France
| | - Valentine Marquet
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Limoges University Hospital, Limoges, France
| | - Eric Bieth
- Department of Genetics, Toulouse University Hospital, Toulouse, France
| | - Jonathan Lévy
- Department of Genetics, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Department of Genetics, Robert-Debré University Hospital, Paris, France
| | - Stanislas Lyonnet
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France.,INSERM U-1163, Université de Paris, Paris, France
| | - Geneviève Baujat
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - Marlène Rio
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - François Cartault
- Department of Genetics, La Réunion University Hospital, Saint Denis, France
| | | | | | | | - Clémence Jacquin
- Department of Genetics, Reims University Hospital, Reims, France
| | | | - Chloé Angélini
- CHU Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | | | | | - Martine Doco-Fenzy
- Department of Genetics, Reims University Hospital, Reims, France.,ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,EA3801, SFR CAPSANTE, Reims, France
| | - Céline Poirsier
- Department of Genetics, Reims University Hospital, Reims, France
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7
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Parenti I, Leitão E, Kuechler A, Villard L, Goizet C, Courdier C, Bayat A, Rossi A, Julia S, Bruel AL, Tran Mau-Them F, Nambot S, Lehalle D, Willems M, Lespinasse J, Ghoumid J, Caumes R, Smol T, El Chehadeh S, Schaefer E, Abi-Warde MT, Keren B, Afenjar A, Tabet AC, Levy J, Maruani A, Aledo-Serrano Á, Garming W, Milleret-Pignot C, Chassevent A, Koopmans M, Verbeek NE, Person R, Belles R, Bellus G, Salbert BA, Kaiser FJ, Mazzola L, Convers P, Perrin L, Piton A, Wiegand G, Accogli A, Brancati F, Benfenati F, Chatron N, Lewis-Smith D, Thomas RH, Zara F, Striano P, Lesca G, Depienne C. The different clinical facets of SYN1-related neurodevelopmental disorders. Front Cell Dev Biol 2022; 10:1019715. [PMID: 36568968 PMCID: PMC9773998 DOI: 10.3389/fcell.2022.1019715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/20/2022] [Indexed: 12/13/2022] Open
Abstract
Synapsin-I (SYN1) is a presynaptic phosphoprotein crucial for synaptogenesis and synaptic plasticity. Pathogenic SYN1 variants are associated with variable X-linked neurodevelopmental disorders mainly affecting males. In this study, we expand on the clinical and molecular spectrum of the SYN1-related neurodevelopmental disorders by describing 31 novel individuals harboring 22 different SYN1 variants. We analyzed newly identified as well as previously reported individuals in order to define the frequency of key features associated with these disorders. Specifically, behavioral disturbances such as autism spectrum disorder or attention deficit hyperactivity disorder are observed in 91% of the individuals, epilepsy in 82%, intellectual disability in 77%, and developmental delay in 70%. Seizure types mainly include tonic-clonic or focal seizures with impaired awareness. The presence of reflex seizures is one of the most representative clinical manifestations related to SYN1. In more than half of the cases, seizures are triggered by contact with water, but other triggers are also frequently reported, including rubbing with a towel, fever, toothbrushing, fingernail clipping, falling asleep, and watching others showering or bathing. We additionally describe hyperpnea, emotion, lighting, using a stroboscope, digestive troubles, and defecation as possible triggers in individuals with SYN1 variants. The molecular spectrum of SYN1 variants is broad and encompasses truncating variants (frameshift, nonsense, splicing and start-loss variants) as well as non-truncating variants (missense substitutions and in-frame duplications). Genotype-phenotype correlation revealed that epileptic phenotypes are enriched in individuals with truncating variants. Furthermore, we could show for the first time that individuals with early seizures onset tend to present with severe-to-profound intellectual disability, hence highlighting the existence of an association between early seizure onset and more severe impairment of cognitive functions. Altogether, we present a detailed clinical description of the largest series of individuals with SYN1 variants reported so far and provide the first genotype-phenotype correlations for this gene. A timely molecular diagnosis and genetic counseling are cardinal for appropriate patient management and treatment.
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Affiliation(s)
- Ilaria Parenti
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Elsa Leitão
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Alma Kuechler
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Laurent Villard
- INSERM, MMG, Faculté de Médecine, Aix-Marseille University, Marseille, France,Département de Génétique Médicale, APHM, Hôpital d'Enfants de La Timone, Marseille, France
| | - Cyril Goizet
- Service de Génétique Médicale, Bordeaux, France,Centre de Référence Maladies Rares Neurogénétique, Service de Génétique Médicale, Bordeaux, France,NRGEN Team, INCIA, CNRS UMR 5287, University of Bordeaux, Bordeaux, France
| | - Cécile Courdier
- Service de Génétique Médicale, Bordeaux, France,Centre de Référence Maladies Rares Neurogénétique, Service de Génétique Médicale, Bordeaux, France,NRGEN Team, INCIA, CNRS UMR 5287, University of Bordeaux, Bordeaux, France
| | - Allan Bayat
- Institute for Regional Health Services, University of Southern Denmark, Odense, Denmark,Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Center, Dianalund, Denmark,Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Alessandra Rossi
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Center, Dianalund, Denmark,Pediatric Clinic, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Sophie Julia
- Service de Génétique Médicale, Pôle de Biologie, CHU de Toulouse - Hôpital Purpan, Toulouse, France
| | - Ange-Line Bruel
- Unité Fonctionnelle Innovation en Diagnostic Génomique des Maladies Rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France,UMR1231 GAD, Inserm - Université Bourgogne-Franche Comté, Dijon, France
| | - Frédéric Tran Mau-Them
- Unité Fonctionnelle Innovation en Diagnostic Génomique des Maladies Rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France,UMR1231 GAD, Inserm - Université Bourgogne-Franche Comté, Dijon, France
| | - Sophie Nambot
- UMR1231 GAD, Inserm - Université Bourgogne-Franche Comté, Dijon, France
| | - Daphné Lehalle
- Unité Fonctionnelle Innovation en Diagnostic Génomique des Maladies Rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France,UMR1231 GAD, Inserm - Université Bourgogne-Franche Comté, Dijon, France
| | - Marjolaine Willems
- Department of Medical Genetics, Rare diseases and Personalized Medicine, CHU Montpellier, University of Montpellier, Montpellier, France,Inserm U1298, INM, CHU Montpellier, University of Montpellier, Montpellier, France
| | - James Lespinasse
- Service de Cytogenetique, Centre Hospitalier de Chambéry, Chambéry, France
| | - Jamal Ghoumid
- Univ. Lille, ULR7364 RADEME, Lille, France,CHU Lille, Clinique de Génétique, Guy Fontaine, Lille, France
| | - Roseline Caumes
- Univ. Lille, ULR7364 RADEME, Lille, France,CHU Lille, Clinique de Génétique, Guy Fontaine, Lille, France
| | - Thomas Smol
- Univ. Lille, ULR7364 RADEME, Lille, France,CHU Lille, Institut de Génétique Médicale, Lille, France
| | - Salima El Chehadeh
- Service de Génétique Médicale, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Elise Schaefer
- Service de Génétique Médicale, Institut de Génétique Médicale d'Alsace (IGMA), Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | | | - Boris Keren
- APHP, Département de Génétique, UF de Génomique du Développement, Département de Génétique, Groupe Hospitalier Pitié-Salpêtrière, Sorbonne Université, Paris, France
| | - Alexandra Afenjar
- Département de Génétique, Centre de Référence déficiences Intellectuelles de Causes Rares, APHP, Hôpital Armand Trousseau, Sorbonne Université, Paris, France
| | | | - Jonathan Levy
- APHP, Département de Génétique, Hôpital Robert-Debré, Paris, France
| | - Anna Maruani
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Ángel Aledo-Serrano
- Epilepsy and Neurogenetics Program, Neurology Department, Ruber Internacional Hospital, Madrid, Spain
| | - Waltraud Garming
- Sozialpädiatrisches Zentrum, Kinder-und Jugendklinik Gelsenkirchen, Gelsenkirchen, Germany
| | | | - Anna Chassevent
- Department of Neurogenetics, Kennedy Krieger Institute, Baltimore, MD, United States
| | - Marije Koopmans
- Department of Genetics, Utrecht University Medical Center, Utrecht, Netherlands
| | - Nienke E. Verbeek
- Department of Genetics, Utrecht University Medical Center, Utrecht, Netherlands
| | | | - Rebecca Belles
- Medical Genetics, Geisinger Medical Center, Danville, PA, United States
| | - Gary Bellus
- Medical Genetics, Geisinger Medical Center, Danville, PA, United States
| | - Bonnie A. Salbert
- Medical Genetics, Geisinger Medical Center, Danville, PA, United States
| | - Frank J. Kaiser
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany,Essener Zentrum für Seltene Erkrankungen (EZSE), Universitätsklinikum Essen, Essen, Germany
| | - Laure Mazzola
- Department of Neurology, University Hospital, Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR5292, Lyon, France,Department of Neurology, University Hospital, Saint-Etienne, France
| | - Philippe Convers
- Department of Neurology, University Hospital, Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR5292, Lyon, France,Department of Neurology, University Hospital, Saint-Etienne, France
| | - Laurine Perrin
- Department of Paediatric Physical Medicine and Rehabilitation, CHU Saint-Étienne, Hôpital Bellevue, Rhône-Alpes Reference Centre for Neuromuscular Diseases, Saint-Étienne, France
| | - Amélie Piton
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France,Centre National de la Recherche Scientifique, UMR7104, Illkirch, France,Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France,Université de Strasbourg, Illkirch, France
| | - Gert Wiegand
- Division of Pediatric Neurology, Department of Pediatrics, Asklepios Klinik Nord-Heidberg, Hamburg, Germany,Department of Pediatric and Adolescent Medicine II (Neuropediatrics, Social Pediatrics), University Medical Centre Schleswig-Holstein, Kiel, Germany
| | - Andrea Accogli
- Department of Specialized Medicine, Division of Medical Genetics, McGill University Health Centre, Montreal, Qc, Canada,Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, Qc, Canada
| | - Francesco Brancati
- Department of Life, Human Genetics, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy,IRCCS San Raffaele Roma, Rome, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Geneva, Italy,IRCCS Ospedale Policlinico San Martino, Geneva, Italy
| | - Nicolas Chatron
- Service de Genetique, Hospices Civils de Lyon, Bron, France,Institute NeuroMyoGène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, CNRS UMR 5261 -INSERM U1315, Université de Lyon - Université Claude Bernard Lyon 1, Lyon, France
| | - David Lewis-Smith
- Translational and Clinical Research Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom,Department of Clinical Neurosciences, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom
| | - Rhys H. Thomas
- Translational and Clinical Research Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom,Department of Clinical Neurosciences, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom
| | - Federico Zara
- IRCCS G. Gaslini, Genova, Italy,Department of Neurology, Rehabilitation, Ophtalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy
| | - Pasquale Striano
- IRCCS G. Gaslini, Genova, Italy,Department of Neurology, Rehabilitation, Ophtalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy
| | - Gaetan Lesca
- Service de Genetique, Hospices Civils de Lyon, Bron, France,Institute NeuroMyoGène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, CNRS UMR 5261 -INSERM U1315, Université de Lyon - Université Claude Bernard Lyon 1, Lyon, France
| | - Christel Depienne
- Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany,*Correspondence: Christel Depienne,
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8
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Hijazi H, Reis LM, Pehlivan D, Bernstein JA, Muriello M, Syverson E, Bonner D, Estiar MA, Gan-Or Z, Rouleau GA, Lyulcheva E, Greenhalgh L, Tessarech M, Colin E, Guichet A, Bonneau D, van Jaarsveld R, Lachmeijer A, Ruaud L, Levy J, Tabet AC, Ploski R, Rydzanicz M, Kępczyński Ł, Połatyńska K, Li Y, Fatih JM, Marafi D, Rosenfeld JA, Coban-Akdemir Z, Bi W, Gibbs RA, Hobson GM, Hunter JV, Carvalho CM, Posey JE, Semina EV, Lupski JR. TCEAL1 loss-of-function results in an X-linked dominant neurodevelopmental syndrome and drives the neurological disease trait in Xq22.2 deletions. Am J Hum Genet 2022; 109:2270-2282. [PMID: 36368327 PMCID: PMC9748253 DOI: 10.1016/j.ajhg.2022.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 02/22/2022] [Accepted: 10/13/2022] [Indexed: 11/12/2022] Open
Abstract
An Xq22.2 region upstream of PLP1 has been proposed to underly a neurological disease trait when deleted in 46,XX females. Deletion mapping revealed that heterozygous deletions encompassing the smallest region of overlap (SRO) spanning six Xq22.2 genes (BEX3, RAB40A, TCEAL4, TCEAL3, TCEAL1, and MORF4L2) associate with an early-onset neurological disease trait (EONDT) consisting of hypotonia, intellectual disability, neurobehavioral abnormalities, and dysmorphic facial features. None of the genes within the SRO have been associated with monogenic disease in OMIM. Through local and international collaborations facilitated by GeneMatcher and Matchmaker Exchange, we have identified and herein report seven de novo variants involving TCEAL1 in seven unrelated families: three hemizygous truncating alleles; one hemizygous missense allele; one heterozygous TCEAL1 full gene deletion; one heterozygous contiguous deletion of TCEAL1, TCEAL3, and TCEAL4; and one heterozygous frameshift variant allele. Variants were identified through exome or genome sequencing with trio analysis or through chromosomal microarray. Comparison with previously reported Xq22 deletions encompassing TCEAL1 identified a more-defined syndrome consisting of hypotonia, abnormal gait, developmental delay/intellectual disability especially affecting expressive language, autistic-like behavior, and mildly dysmorphic facial features. Additional features include strabismus, refractive errors, variable nystagmus, gastroesophageal reflux, constipation, dysmotility, recurrent infections, seizures, and structural brain anomalies. An additional maternally inherited hemizygous missense allele of uncertain significance was identified in a male with hypertonia and spasticity without syndromic features. These data provide evidence that TCEAL1 loss of function causes a neurological rare disease trait involving significant neurological impairment with features overlapping the EONDT phenotype in females with the Xq22 deletion.
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Affiliation(s)
- Hadia Hijazi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Linda M. Reis
- Department of Pediatrics and Children’s Research Institute, Medical College of Wisconsin and Children’s Wisconsin, Milwaukee, WI, USA
| | - Davut Pehlivan
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Section of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Jan and Dan Duncan Neurological Research Institute at Texas Children’s Hospital, Houston, TX, USA
| | - Jonathan A. Bernstein
- Department of Pediatrics, Division of Medical Genetics, Stanford School of Medicine, Stanford, CA, USA
| | - Michael Muriello
- Department of Pediatrics and Children’s Research Institute, Medical College of Wisconsin and Children’s Wisconsin, Milwaukee, WI, USA
| | - Erin Syverson
- Department of Pediatrics and Children’s Research Institute, Medical College of Wisconsin and Children’s Wisconsin, Milwaukee, WI, USA
| | - Devon Bonner
- Department of Pediatrics, Division of Medical Genetics, Stanford School of Medicine, Stanford, CA, USA
| | - Mehrdad A. Estiar
- Department of Human Genetics, McGill University, Montreal, QC, Canada,The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada
| | - Ziv Gan-Or
- Department of Human Genetics, McGill University, Montreal, QC, Canada,The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada,Department of Neurology & Neurosurgery, McGill University, Montreal, QC, Canada
| | - Guy A. Rouleau
- Department of Human Genetics, McGill University, Montreal, QC, Canada,The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada,Department of Neurology & Neurosurgery, McGill University, Montreal, QC, Canada
| | - Ekaterina Lyulcheva
- Liverpool Centre for Genomic Medicine, Liverpool Women’s Hospital, Liverpool, UK
| | - Lynn Greenhalgh
- Liverpool Centre for Genomic Medicine, Liverpool Women’s Hospital, Liverpool, UK
| | - Marine Tessarech
- Department of Medical Genetics, Angers University Hospital, Angers, France,Mitovasc Unit, UMR CNRS 6015-INSERM 1083, University of Angers, Angers, France
| | - Estelle Colin
- Department of Medical Genetics, Angers University Hospital, Angers, France,Mitovasc Unit, UMR CNRS 6015-INSERM 1083, University of Angers, Angers, France
| | - Agnès Guichet
- Department of Medical Genetics, Angers University Hospital, Angers, France,Mitovasc Unit, UMR CNRS 6015-INSERM 1083, University of Angers, Angers, France
| | - Dominique Bonneau
- Department of Medical Genetics, Angers University Hospital, Angers, France,Mitovasc Unit, UMR CNRS 6015-INSERM 1083, University of Angers, Angers, France
| | - R.H. van Jaarsveld
- Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - A.M.A. Lachmeijer
- Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Lyse Ruaud
- INSERM UMR1141, Neurodiderot, University of Paris, 75019 Paris, France,APHP.Nord, Robert Debré University Hospital, Department of Genetics, 75019 Paris, France
| | - Jonathan Levy
- APHP.Nord, Robert Debré University Hospital, Department of Genetics, 75019 Paris, France
| | - Anne-Claude Tabet
- APHP.Nord, Robert Debré University Hospital, Department of Genetics, 75019 Paris, France
| | - Rafal Ploski
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | | | - Łukasz Kępczyński
- Department of Genetics, Polish Mother’s Memorial Hospital – Research Institute, Łódź, Poland
| | - Katarzyna Połatyńska
- Department of Developmental Neurology an Epileptology, Polish Mother’s Memorial Hospital – Research Institute, Łódź, Poland
| | - Yidan Li
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jawid M. Fatih
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Dana Marafi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jill A. Rosenfeld
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Baylor Genetics, Houston, TX, USA
| | - Zeynep Coban-Akdemir
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Weimin Bi
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Baylor Genetics, Houston, TX, USA
| | - Richard A. Gibbs
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Grace M. Hobson
- Department of Research, Nemours Children’s Health, Wilmington, DE, USA
| | - Jill V. Hunter
- E.B. Singleton Department of Pediatric Radiology, Texas Children’s Hospital, Houston, TX, USA
| | - Claudia M.B. Carvalho
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jennifer E. Posey
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Elena V. Semina
- Department of Pediatrics and Children’s Research Institute, Medical College of Wisconsin and Children’s Wisconsin, Milwaukee, WI, USA,Departments of Ophthalmology and Visual Sciences and Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA,Corresponding author
| | - James R. Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA,Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA,Texas Children’s Hospital, Houston, TX, USA,Corresponding author
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9
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Fiot E, Alauze B, Donadille B, Samara-Boustani D, Houang M, De Filippo G, Bachelot A, Delcour C, Beyler C, Bois E, Bourrat E, Bui Quoc E, Bourcigaux N, Chaussain C, Cohen A, Cohen-Solal M, Da Costa S, Dossier C, Ederhy S, Elmaleh M, Iserin L, Lengliné H, Poujol-Robert A, Roulot D, Viala J, Albarel F, Bismuth E, Bernard V, Bouvattier C, Brac A, Bretones P, Chabbert-Buffet N, Chanson P, Coutant R, de Warren M, Demaret B, Duranteau L, Eustache F, Gautheret L, Gelwane G, Gourbesville C, Grynberg M, Gueniche K, Jorgensen C, Kerlan V, Lebrun C, Lefevre C, Lorenzini F, Manouvrier S, Pienkowski C, Reynaud R, Reznik Y, Siffroi JP, Tabet AC, Tauber M, Vautier V, Tauveron I, Wambre S, Zenaty D, Netchine I, Polak M, Touraine P, Carel JC, Christin-Maitre S, Léger J. Turner syndrome: French National Diagnosis and Care Protocol (NDCP; National Diagnosis and Care Protocol). Orphanet J Rare Dis 2022; 17:261. [PMID: 35821070 PMCID: PMC9277788 DOI: 10.1186/s13023-022-02423-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/30/2022] [Indexed: 12/03/2022] Open
Abstract
Turner syndrome (TS; ORPHA 881) is a rare condition in which all or part of one X chromosome is absent from some or all cells. It affects approximately one in every 1/2500 liveborn girls. The most frequently observed karyotypes are 45,X (40–50%) and the 45,X/46,XX mosaic karyotype (15–25%). Karyotypes with an X isochromosome (45,X/46,isoXq or 45,X/46,isoXp), a Y chromosome, X ring chromosome or deletions of the X chromosome are less frequent. The objective of the French National Diagnosis and Care Protocol (PNDS; Protocole National de Diagnostic et de Soins) is to provide health professionals with information about the optimal management and care for patients, based on a critical literature review and multidisciplinary expert consensus. The PNDS, written by members of the French National Reference Center for Rare Growth and Developmental Endocrine disorders, is available from the French Health Authority website. Turner Syndrome is associated with several phenotypic conditions and a higher risk of comorbidity. The most frequently reported features are growth retardation with short adult stature and gonadal dysgenesis. TS may be associated with various congenital (heart and kidney) or acquired diseases (autoimmune thyroid disease, celiac disease, hearing loss, overweight/obesity, glucose intolerance/type 2 diabetes, dyslipidemia, cardiovascular complications and liver dysfunction). Most of the clinical traits of TS are due to the haploinsufficiency of various genes on the X chromosome, particularly those in the pseudoautosomal regions (PAR 1 and PAR 2), which normally escape the physiological process of X inactivation, although other regions may also be implicated. The management of patients with TS requires collaboration between several healthcare providers. The attending physician, in collaboration with the national care network, will ensure that the patient receives optimal care through regular follow-up and screening. The various elements of this PNDS are designed to provide such support.
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Affiliation(s)
- Elodie Fiot
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Bertille Alauze
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Bruno Donadille
- Department of Reproductive Endocrinology, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Dinane Samara-Boustani
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Université de Paris, Necker Enfants Malades University Hospital, 75015, Paris, France
| | - Muriel Houang
- Explorations Fonctionnelles Endocriniennes, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Armand-Trousseau Hospital, 75012, Paris, France
| | - Gianpaolo De Filippo
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Anne Bachelot
- Endocrinology and Reproductive Medicine Department, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Pitié Salpétrière University Hospital, 75013, Paris, France
| | - Clemence Delcour
- Department of Obstetrics and Gynecology, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Constance Beyler
- Cardiopaediatric Unit, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Emilie Bois
- Pediatric Otorhinolaryngology Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Emmanuelle Bourrat
- Dermatology Unit, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Emmanuel Bui Quoc
- Ophthalmology Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Nathalie Bourcigaux
- Department of Reproductive Endocrinology, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Catherine Chaussain
- Odontology Department, Assistance Publique-Hôpitaux de Paris, University Hospitals Charles Foix, PNVS, and Henri Mondor, 94000, Créteil, France
| | - Ariel Cohen
- Department of Cardiology, GRC n°27, GRECO, AP-HP, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Martine Cohen-Solal
- Department of Rheumatology, Assistance Publique-Hôpitaux de Paris, Université de Paris, Lariboisière Hospital, 75010, Paris, France
| | - Sabrina Da Costa
- Reference Center for Rare Gynecological Pathologies, Pediatric Endocrinology Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Necker Enfants Malades University Hospital, 75015, Paris, France
| | - Claire Dossier
- Department of Paediatric Nephrology, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Stephane Ederhy
- Department of Cardiology, GRC n°27, GRECO, AP-HP, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Monique Elmaleh
- Department of Radiology, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Laurence Iserin
- Adult Congenital Heart Disease Unit, Cardiology Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Georges Pompidou University Hospital, 75015, Paris, France
| | - Hélène Lengliné
- Department of Pediatric Gastroenterology and Nutrition, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Armelle Poujol-Robert
- Hepatology Department, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Dominique Roulot
- Hepatology Department, Assistance Publique-Hopitaux de Paris, Université Sorbonne Paris Nord, Avicenne Hospital, 93009, Bobigny, France
| | - Jerome Viala
- Department of Pediatric Gastroenterology and Nutrition, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Frederique Albarel
- Department of Endocrinology, Assistance Publique-Hôpitaux de Marseille. Hospital La Conception, 13005, Marseille, France
| | - Elise Bismuth
- Department of Pediatric Endocrinology and Diabetology, Competence Center for Rare Diseases of Insulin Secretion and Insulin Sensitivity, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Valérie Bernard
- CHU Pellegrin, Department of Gynecological Surgery, Medical Gynecology and Reproductive Medicine, Centre Aliénor d'aquitaine, Bordeaux University Hospitals, 33000, Bordeaux, France
| | - Claire Bouvattier
- Paediatric Endocrinology Department, Reference Center for Rare Genital Development Disorders, Assistance Publique-Hôpitaux de Paris, Kremlin-Bicêtre University Hospital, Paris-Sud University, 94270, Le Kremlin-Bicêtre, France
| | - Aude Brac
- Department of Endocrinology Pediatric and Adult, Reference Center for Rare Genital Development Disorders, Lyon Hospices Civils, Est Hospital Group, 69677, Bron, France
| | - Patricia Bretones
- Department of Endocrinology Pediatric and Adult, Reference Center for Rare Genital Development Disorders, Lyon Hospices Civils, Est Hospital Group, 69677, Bron, France
| | - Nathalie Chabbert-Buffet
- Gynecology-Obstetrics and Reproductive Medicine Department, Assistance Publique-Hôpitaux de Paris, Tenon University Hospital, 75020, Paris, France
| | - Philippe Chanson
- Department of Endocrinology and Reproductive Diseases, Assistance Publique-Hôpitaux de Paris, Kremlin-Bicêtre University Hospital, Paris-Sud University, 94270, Le Kremlin-Bicêtre, France
| | - Regis Coutant
- Department of Pediatric Endocrinology and Diabetology and Reference Center for Rare Diseases of Thyroid and Hormone Receptivity, Angers University Hospital, 49100, Angers, France
| | - Marguerite de Warren
- AGAT, French Turner Syndrome Association (AGAT; Association Des Groupes Amitié Turner), 75011, Paris, France
| | - Béatrice Demaret
- Grandir Association (French Growth Disorders Association), 92600, Asnières-sur-Seine, France
| | - Lise Duranteau
- Adolescent and Young Adult Gynecology Unit, Reference Center for Rare Genital Development Disorders, Assistance Publique-Hôpitaux de Paris, Kremlin-Bicêtre University Hospital, Paris-Sud University, 94270, Le Kremlin-Bicêtre, France
| | - Florence Eustache
- Reproductive Biology Department, Assistance Publique-Hôpitaux de Paris, Jean Verdier University Hospital, 93140, Bondy, France
| | - Lydie Gautheret
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Georges Gelwane
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Claire Gourbesville
- Department of Endocrinology and Metabolic Diseases, Caen University Hospital, 14000, Caen, France
| | - Mickaël Grynberg
- Department of Reproductive Medicine and Fertility Preservation, Assistance Publique-Hôpitaux de Paris, Antoine Béclère University Hospital, 92140, Clamart, France
| | - Karinne Gueniche
- Reference Center for Rare Gynecological Pathologies, Pediatric Endocrinology Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Necker Enfants Malades University Hospital, 75015, Paris, France
| | - Carina Jorgensen
- Endocrinology and Metabolism Department, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Veronique Kerlan
- Endocrinology and Metabolism Department, Brest University Hospital Centre, 29200, Brest, France
| | - Charlotte Lebrun
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Christine Lefevre
- Pediatric Endocrinology, Lille University Jeanne de Flandre Hospital, 59000, Lille, France
| | - Françoise Lorenzini
- Department of Endocrinology, Toulouse University Paule Viguier Hospital, 31300, Toulouse, France
| | - Sylvie Manouvrier
- Clinical Genetics Department, DEV GEN Genital Development Reference Center, Lille University Jeanne de Flandre Hospital, 59000, Lille, France
| | - Catherine Pienkowski
- Genetics and Medical Gynecology Department, Reference Center for Rare Gynecological Pathologies, Toulouse University Hospitals - Hôpital Des Enfants, Pediatrics - Endocrinology, 31059, Toulouse, France
| | - Rachel Reynaud
- Department of Multidisciplinary Pediatrics, Reference Center for Pituitary Rare Diseases Aix Marseille University, Assistance Publique-Hôpitaux de Marseille, Hôpital de La Timone Enfants, 13005, Marseille, France
| | - Yves Reznik
- Department of Endocrinology and Metabolic Diseases, Caen University Hospital, 14000, Caen, France
| | - Jean-Pierre Siffroi
- Genetics and Embryology Department, Sorbonne Université; INSERM UMRS-933, Assistance Publique-Hôpitaux de Paris, Hôpital d'Enfants Armand-Trousseau, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 75019, Paris, France
| | - Maithé Tauber
- Genetics and Medical Gynecology Department, Toulouse University Hospital - Hôpital Des Enfants, Pediatrics - Endocrinology, 31059, Toulouse, France
| | - Vanessa Vautier
- Pediatric Diabetology Department, Bordeaux University Hospitals, 33000, Bordeaux, France
| | - Igor Tauveron
- Clermont-Ferrand University Hospital, Endocrinology Department, Clermont Auvergne University, 63000, Clermont-Ferrand, France
| | - Sebastien Wambre
- French Turner Syndrome Association (Turner Et Vous Association), 59155, Faches-Thumesnil, France
| | - Delphine Zenaty
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Irène Netchine
- Explorations Fonctionnelles Endocriniennes, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Armand-Trousseau Hospital, 75012, Paris, France
| | - Michel Polak
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Université de Paris, Necker Enfants Malades University Hospital, 75015, Paris, France
| | - Philippe Touraine
- Endocrinology and Reproductive Medicine Department, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Pitié Salpétrière University Hospital, 75013, Paris, France
| | - Jean-Claude Carel
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France
| | - Sophie Christin-Maitre
- Department of Reproductive Endocrinology, Reference Center for Rare Growth and Development Endocrine Diseases, Assistance Publique-Hôpitaux de Paris, Sorbonne University, Saint Antoine Hospital, 75012, Paris, France
| | - Juliane Léger
- Pediatric Endocrinology-Diabetology Department, Reference Center for Rare Growth and Development Endocrine Diseases, INSERM NeuroDiderot, Assistance Publique-Hôpitaux de Paris, Université de Paris, Robert Debré University Hospital, 48 Bd Sérurier, 75019, Paris, France.
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10
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Lévy J, Cogan G, Maruani A, Maillard A, Dupont C, Drunat S, Rachid M, Atzori P, Delorme R, Jeyarajah S, Isidor B, Pichon O, Moradkhani K, Verloes A, Tabet AC. Rare and de novo duplications containing TCF20 are associated with a neurodevelopmental disorder. Clin Genet 2021; 101:364-370. [PMID: 34904221 DOI: 10.1111/cge.14099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/21/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 11/30/2022]
Abstract
Transcriptor co-activator factor 20 gene (TCF20) encodes a nuclear chromatin-binding protein involved in regulation of gene expression. In human pathology, pathogenic variants or deletions in TCF20 were identified in patients with developmental delay, variable intellectual disability and behavioral impairment (OMIM: 618430). The shared core phenotype includes developmental delay, hypotonia, motor delay, autism spectrum disorders, neurobehavioral anomalies, neurological features such as ataxia, seizures, movement disorders, structural brain anomalies, craniofacial features and various congenital anomalies. Most pathogenic variants are loss-of-function variants. Duplication including TCF20 was suspected to cause a neurodevelopmental disorder (NDD) with mirror traits compared to patients with TCF20 deletions. In the present study, we report three patients from three unrelated families with NDD with a de novo duplication at 22q13.2 encompassing TCF20. We propose that the TCF20 duplication could be involved in a new 22q13.2 microduplication syndrome with high penetrance, enlarging the genotype-phenotype knowledge of TCF20-associated NDDs.
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Affiliation(s)
- Jonathan Lévy
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Guillaume Cogan
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Anna Maruani
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Arnaud Maillard
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Céline Dupont
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Séverine Drunat
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France.,INSERM U1141, Robert-Debré University Hospital, Paris, France
| | - Myriam Rachid
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Paola Atzori
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Richard Delorme
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Sabatini Jeyarajah
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | | | - Olivier Pichon
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | | | - Alain Verloes
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France.,INSERM U1141, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France.,Neuroscience Department, Human Genetics and Cognitive Function Unit, Pasteur Institute, Paris, France
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11
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Lesieur-Sebellin M, Till M, Khau Van Kien P, Herve B, Bourgon N, Dupont C, Tabet AC, Barrois M, Coussement A, Loeuillet L, Mousty E, Ea V, El Assal A, Mary L, Jaillard S, Beneteau C, Le Vaillant C, Coutton C, Devillard F, Goumy C, Delabaere A, Redon S, Laurent Y, Lamouroux A, Massardier J, Turleau C, Sanlaville D, Cantagrel V, Sonigo P, Vialard F, Salomon LJ, Malan V. Terminal 6q deletions cause brain malformations, a phenotype mimicking heterozygous DLL1 pathogenic variants: A multicenter retrospective case series. Prenat Diagn 2021; 42:118-135. [PMID: 34894355 DOI: 10.1002/pd.6074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/03/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Terminal 6q deletion is a rare genetic condition associated with a neurodevelopmental disorder characterized by intellectual disability and structural brain anomalies. Interestingly, a similar phenotype is observed in patients harboring pathogenic variants in the DLL1 gene. Our study aimed to further characterize the prenatal phenotype of this syndrome as well as to attempt to establish phenotype-genotype correlations. METHOD We collected ultrasound findings from 22 fetuses diagnosed with a pure 6qter deletion. We reviewed the literature and compared our 22 cases with 14 fetuses previously reported as well as with patients with heterozygous DLL1 pathogenic variants. RESULTS Brain structural alterations were observed in all fetuses. The most common findings (>70%) were cerebellar hypoplasia, ventriculomegaly, and corpus callosum abnormalities. Gyration abnormalities were observed in 46% of cases. Occasional findings included cerebral heterotopia, aqueductal stenosis, vertebral malformations, dysmorphic features, and kidney abnormalities. CONCLUSION This is the first series of fetuses diagnosed with pure terminal 6q deletion. Based on our findings, we emphasize the prenatal sonographic anomalies, which may suggest the syndrome. Furthermore, this study highlights the importance of chromosomal microarray analysis to search for submicroscopic deletions of the 6q27 region involving the DLL1 gene in fetuses with these malformations.
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Affiliation(s)
- Marion Lesieur-Sebellin
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Faculté de Médecine, Sorbonne Université, Paris, France
| | - Marianne Till
- Laboratoire de Cytogénétique, service de Génétique, Hospices Civils de Lyon, Groupement Hospitalier Est, Bron, France
| | | | - Bérénice Herve
- Département de Génétique, CHI Poissy Saint-Germain, Saint-Germain, France
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Nicolas Bourgon
- Service d'Obstétrique et de Médecine Fœtale, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Céline Dupont
- Département de Génétique, Unité de Cytogénétique, Hôpital Robert Debré, APHP Nord, Paris, France
| | - Anne-Claude Tabet
- Département de Génétique, Unité de Cytogénétique, Hôpital Robert Debré, APHP Nord, Paris, France
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris, Paris, France
| | - Mathilde Barrois
- Maternité Port Royal, APHP Centre, Hôpital Cochin, Paris, France
| | - Aurélie Coussement
- Service des Maladies Génétiques de système et d'organes, APHP-Centre, Hôpital Cochin, Paris, France
| | - Laurence Loeuillet
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Eve Mousty
- Service de Gynécologie Obstétrique, Hôpital Caremeau, Nîmes, France
| | - Vuthy Ea
- UF de Cytogénétique et Génétique Médicale, Hôpital Caremeau, Nîmes, France
| | - Amal El Assal
- Département de Gynécologie Obstétrique, CHI Poissy Saint-Germain, Saint-Germain, France
| | - Laura Mary
- Service d'Anatomie Pathologique, CHU Rennes, Rennes, France
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Sylvie Jaillard
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
- INSERM, EHESP, IRSET, Université Rennes 1, Rennes, France
| | - Claire Beneteau
- Service de Génétique Médicale, CHU Nantes, Nantes, France
- UF de Fœtopathologie et Génétique, CHU de Nantes, Nantes, France
| | | | - Charles Coutton
- Service de Génétique, Génomique et Procréation, Hôpital Couple Enfant, CHU Grenoble Alpes, Grenoble, France
- Université Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institut pour l'Avancée des Biosciences, Equipe Génétique, Epigénétique et Thérapies de l'infertilité, Grenoble, France
| | - Françoise Devillard
- Service de Génétique, Génomique et Procréation, Hôpital Couple Enfant, CHU Grenoble Alpes, Grenoble, France
| | - Carole Goumy
- Cytogénétique Médicale, CHU Clermont-Ferrand, CHU Estaing, Université Clermont Auvergne, INSERM, U1240 Imagerie Moléculaire et Stratégies Théranostiques, Clermont-Ferrand, France
| | | | - Sylvia Redon
- CHU Brest, Inserm, Université de Brest, Brest, France
| | - Yves Laurent
- Service de Gynécologie et Obstétrique, GHBS Lorient, Lorient, France
| | - Audrey Lamouroux
- Service de Génétique Clinique, CHU Montpellier, Université de Montpellier, Montpellier, France
- Service de Gynécologie Obstétrique, CHU Nîmes, Université de Montpellier, Nîmes, France
| | - Jérôme Massardier
- Service de Gynécologie et Obstétrique, Hôpital Femme-Mère-Enfant, Hospices Civils de Lyon, Bron, France
| | - Catherine Turleau
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - Damien Sanlaville
- Laboratoire de Cytogénétique, service de Génétique, Hospices Civils de Lyon, Groupement Hospitalier Est, Bron, France
| | - Vincent Cantagrel
- Université de Paris, Institut Imagine, Laboratoire de génétique des troubles du neurodéveloppement, Paris, France
- Université de Paris, Paris, France
| | - Pascale Sonigo
- Service de Radiologie Pédiatrique, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
| | - François Vialard
- Département de Génétique, CHI Poissy Saint-Germain, Saint-Germain, France
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Laurent J Salomon
- Service d'Obstétrique et de Médecine Fœtale, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Université de Paris, Paris, France
| | - Valérie Malan
- Service de Médecine Génomique des Maladies Rares, APHP-Centre, Hôpital Necker-Enfants Malades, Paris, France
- Université de Paris, Institut Imagine, Laboratoire de génétique des troubles du neurodéveloppement, Paris, France
- Université de Paris, Paris, France
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12
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Loureiro LO, Howe JL, Reuter MS, Iaboni A, Calli K, Roshandel D, Pritišanac I, Moses A, Forman-Kay JD, Trost B, Zarrei M, Rennie O, Lau LYS, Marshall CR, Srivastava S, Godlewski B, Buttermore ED, Sahin M, Hartley D, Frazier T, Vorstman J, Georgiades S, Lewis SME, Szatmari P, Bradley CAL, Tabet AC, Willems M, Lumbroso S, Piton A, Lespinasse J, Delorme R, Bourgeron T, Anagnostou E, Scherer SW. A recurrent SHANK3 frameshift variant in Autism Spectrum Disorder. NPJ Genom Med 2021; 6:91. [PMID: 34737294 PMCID: PMC8568906 DOI: 10.1038/s41525-021-00254-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/23/2021] [Indexed: 01/22/2023] Open
Abstract
Autism Spectrum Disorder (ASD) is genetically complex with ~100 copy number variants and genes involved. To try to establish more definitive genotype and phenotype correlations in ASD, we searched genome sequence data, and the literature, for recurrent predicted damaging sequence-level variants affecting single genes. We identified 18 individuals from 16 unrelated families carrying a heterozygous guanine duplication (c.3679dup; p.Ala1227Glyfs*69) occurring within a string of 8 guanines (genomic location [hg38]g.50,721,512dup) affecting SHANK3, a prototypical ASD gene (0.08% of ASD-affected individuals carried the predicted p.Ala1227Glyfs*69 frameshift variant). Most probands carried de novo mutations, but five individuals in three families inherited it through somatic mosaicism. We scrutinized the phenotype of p.Ala1227Glyfs*69 carriers, and while everyone (17/17) formally tested for ASD carried a diagnosis, there was the variable expression of core ASD features both within and between families. Defining such recurrent mutational mechanisms underlying an ASD outcome is important for genetic counseling and early intervention.
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Affiliation(s)
- Livia O Loureiro
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jennifer L Howe
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Miriam S Reuter
- Canada's Genomics Enterprise (CGEn), The Hospital for Sick Children, Toronto, ON, Canada
| | - Alana Iaboni
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
| | - Kristina Calli
- Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Delnaz Roshandel
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Iva Pritišanac
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Alan Moses
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Julie D Forman-Kay
- Program in Molecular Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Brett Trost
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Mehdi Zarrei
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Olivia Rennie
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Lynette Y S Lau
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada
| | - Christian R Marshall
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Siddharth Srivastava
- Department of Neurology, Rosamund Stone Zander Translational Neuroscience Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Brianna Godlewski
- Department of Neurology, Rosamund Stone Zander Translational Neuroscience Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Elizabeth D Buttermore
- Department of Neurology, Rosamund Stone Zander Translational Neuroscience Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Mustafa Sahin
- Department of Neurology, Rosamund Stone Zander Translational Neuroscience Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Thomas Frazier
- Autism Speaks and Department of Psychology, John Carroll University, Cleveland, OH, USA
| | - Jacob Vorstman
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, The Hospital for Sick Children, Toronto, ON, Canada
| | - Stelios Georgiades
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Suzanne M E Lewis
- Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Peter Szatmari
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, The Hospital for Sick Children, Toronto, ON, Canada
- Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Clarrisa A Lisa Bradley
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Anne-Claude Tabet
- Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, F-75015, Paris, France
- Genetics Department, Cytogenetic Unit, Robert Debré Hospital, APHP, F-75019, Paris, France
| | | | - Serge Lumbroso
- Biochimie et Biologie Moléculaire, CHU Nimes, Univ. Montpellier, Nimes, France
| | - Amélie Piton
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique, UMR7104, Institut National de la Santé et de la Recherche Médicale, U964, Université de Strasbourg, Illkirch, France
- Unité de Génétique Moléculaire, IGMA, Hôpitaux Universitaire de Strasbourg, Strasbourg, France
- Institut Universitaire de France, Paris, France
| | | | - Richard Delorme
- Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, F-75015, Paris, France
- Child and Adolescent Psychiatry Department, Robert Debré Hospital, APHP, F-75019, Paris, France
| | - Thomas Bourgeron
- Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, F-75015, Paris, France
| | - Evdokia Anagnostou
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Stephen W Scherer
- Genetics and Genome Biology and The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada.
- Department of Molecular Genetics and the McLaughlin Centre, University of Toronto, Toronto, ON, Canada.
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13
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Lévy J, Schell B, Nasser H, Rachid M, Ruaud L, Couque N, Callier P, Faivre L, Marle N, Engwerda A, van Ravenswaaij-Arts CMA, Plutino M, Karmous-Benailly H, Benech C, Redon S, Boute O, Boudry Labis E, Rama M, Kuentz P, Assoumani J, Maldergem LV, Dupont C, Verloes A, Tabet AC. EPHA7 haploinsufficiency is associated with a neurodevelopmental disorder. Clin Genet 2021; 100:396-404. [PMID: 34176129 DOI: 10.1111/cge.14017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/27/2020] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/26/2022]
Abstract
Ephrin receptor and their ligands, the ephrins, are widely expressed in the developing brain. They are implicated in several developmental processes that are crucial for brain development. Deletions in genes encoding for members of the Eph/ephrin receptor family were reported in several neurodevelopmental disorders. The ephrin receptor A7 gene (EPHA7) encodes a member of ephrin receptor subfamily of the protein-tyrosine kinase family. EPHA7 plays a role in corticogenesis processes, determines brain size and shape, and is involved in development of the central nervous system. One patient only was reported so far with a de novo deletion encompassing EPHA7 in 6q16.1. We report 12 additional patients from nine unrelated pedigrees with similar deletions. The deletions were inherited in nine out of 12 patients, suggesting variable expressivity and incomplete penetrance. Four patients had tiny deletions involving only EPHA7, suggesting a critical role of EPHA7 in a neurodevelopmental disability phenotype. We provide further evidence for EPHA7 deletion as a risk factor for neurodevelopmental disorder and delineate its clinical phenotype.
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Affiliation(s)
- Jonathan Lévy
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Bérénice Schell
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Hala Nasser
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Myriam Rachid
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Lyse Ruaud
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France.,Université de Paris Medical School, Paris, France.,INSERM UMR1141, Paris University, APHP, Robert-Debré Hospital, Paris, France
| | - Nathalie Couque
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Patrick Callier
- Centre de Génétique et Centre de référence "Anomalies du Développement et Syndromes Malformatifs", Hôpital d'Enfants, Centre Hospitalier Universitaire de Dijon, Dijon, France.,Laboratoire de Génétique Chromosomique et Moléculaire, Plateau Technique de Biologie, Centre Hospitalier Universitaire de Dijon, Dijon, France.,UMR-Inserm 1231 GAD Team, Génétique des Anomalies du développement, Université de Bourgogne Franche-Comté, Dijon, France
| | - Laurence Faivre
- Centre de Génétique et Centre de référence "Anomalies du Développement et Syndromes Malformatifs", Hôpital d'Enfants, Centre Hospitalier Universitaire de Dijon, Dijon, France.,UMR-Inserm 1231 GAD Team, Génétique des Anomalies du développement, Université de Bourgogne Franche-Comté, Dijon, France
| | - Nathalie Marle
- Laboratoire de Génétique Chromosomique et Moléculaire, Plateau Technique de Biologie, Centre Hospitalier Universitaire de Dijon, Dijon, France.,UMR-Inserm 1231 GAD Team, Génétique des Anomalies du développement, Université de Bourgogne Franche-Comté, Dijon, France
| | - Aafke Engwerda
- Department of Genetics, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | | | - Morgane Plutino
- Service de Génétique Médicale, Centre Hospitalier Universitaire de Nice, Nice, France
| | | | | | - Sylvia Redon
- Laboratoire de Génétique Moléculaire et Histocompatibilité, Service de Génétique Médicale, CHRU, Brest, France
| | - Odile Boute
- CHU Lille, Clinique de Génétique "Guy Fontaine", Lille, France
| | | | - Mélanie Rama
- CHU Lille, Institut de Génétique Médicale, Lille, France
| | - Paul Kuentz
- UMR-Inserm 1231 GAD Team, Génétique des Anomalies du développement, Université de Bourgogne Franche-Comté, Dijon, France.,Génétique Biologique, PCBio, Centre Hospitalier Universitaire de Besançon, Besançon, France
| | | | - Lionel Van Maldergem
- Clinical Investigation Center 1431, INSERM, Besançon, France.,Center of Human Genetics, University of Franche-Comté, Besançon, France
| | - Céline Dupont
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France
| | - Alain Verloes
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France.,Université de Paris Medical School, Paris, France.,INSERM UMR1141, Paris University, APHP, Robert-Debré Hospital, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, APHP, Robert-Debré University Hospital, Paris, France.,Neuroscience Department, Human Genetics and Cognitive Function Unit, Pasteur Institute, Paris, France
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14
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Le TL, Galmiche L, Levy J, Suwannarat P, Hellebrekers DM, Morarach K, Boismoreau F, Theunissen TE, Lefebvre M, Pelet A, Martinovic J, Gelot A, Guimiot F, Calleroz A, Gitiaux C, Hully M, Goulet O, Chardot C, Drunat S, Capri Y, Bole-Feysot C, Nitschké P, Whalen S, Mouthon L, Babcock HE, Hofstra R, de Coo IF, Tabet AC, Molina TJ, Keren B, Brooks A, Smeets HJ, Marklund U, Gordon CT, Lyonnet S, Amiel J, Bondurand N. Dysregulation of the NRG1/ERBB pathway causes a developmental disorder with gastrointestinal dysmotility in humans. J Clin Invest 2021; 131:145837. [PMID: 33497358 DOI: 10.1172/jci145837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 11/09/2020] [Accepted: 01/14/2021] [Indexed: 02/06/2023] Open
Abstract
Hirschsprung disease (HSCR) is the most frequent developmental anomaly of the enteric nervous system, with an incidence of 1 in 5000 live births. Chronic intestinal pseudo-obstruction (CIPO) is less frequent and classified as neurogenic or myogenic. Isolated HSCR has an oligogenic inheritance with RET as the major disease-causing gene, while CIPO is genetically heterogeneous, caused by mutations in smooth muscle-specific genes. Here, we describe a series of patients with developmental disorders including gastrointestinal dysmotility, and investigate the underlying molecular bases. Trio-exome sequencing led to the identification of biallelic variants in ERBB3 and ERBB2 in 8 individuals variably associating HSCR, CIPO, peripheral neuropathy, and arthrogryposis. Thorough gut histology revealed aganglionosis, hypoganglionosis, and intestinal smooth muscle abnormalities. The cell type-specific ErbB3 and ErbB2 function was further analyzed in mouse single-cell RNA sequencing data and in a conditional ErbB3-deficient mouse model, revealing a primary role for ERBB3 in enteric progenitors. The consequences of the identified variants were evaluated using quantitative real-time PCR (RT-qPCR) on patient-derived fibroblasts or immunoblot assays on Neuro-2a cells overexpressing WT or mutant proteins, revealing either decreased expression or altered phosphorylation of the mutant receptors. Our results demonstrate that dysregulation of ERBB3 or ERBB2 leads to a broad spectrum of developmental anomalies, including intestinal dysmotility.
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Affiliation(s)
- Thuy-Linh Le
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Louise Galmiche
- INSERM UMR 1235, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, University of Nantes, Nantes, France.,Pathology Department, Assistance Publique Hôpitaux de Paris (AP-HP), Necker-Enfants Malades Hospital, Paris, France
| | - Jonathan Levy
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France
| | - Pim Suwannarat
- Department of Genetics, Mid-Atlantic Permanente Medical Group, Suitland, Maryland, USA
| | - Debby Mei Hellebrekers
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, Netherlands
| | - Khomgrit Morarach
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Franck Boismoreau
- Institut de Biologie de l'ENS (IBENS), INSERM, CNRS, École Normale Supérieure, PSL Research University, Paris, France
| | - Tom Ej Theunissen
- Department of Genetics and Cell Biology, Maastricht University, Maastricht, Netherlands
| | - Mathilde Lefebvre
- Fetal Pathology Unit, Armand Trousseau Hospital, AP-HP, Paris, France
| | - Anna Pelet
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Jelena Martinovic
- Fetal Pathology Unit, Antoine Béclère Hospital, AP-HP, Paris-Saclay University, Clamart, France
| | - Antoinette Gelot
- Neuropathology, Pathology Department, Armand Trousseau Hospital, AP-HP, Paris, France.,Aix-Marseille University, INMED INSERM UMR1249, Campus de Luminy, Marseille, France
| | - Fabien Guimiot
- Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France.,Fetal Pathology Unit, Robert Debré Hospital, AP-HP, Paris, France
| | - Amanda Calleroz
- Pathology and Laboratory Medicine Division, Children's National Hospital, Washington DC, USA
| | - Cyril Gitiaux
- Department of Pediatric Clinical Neurophysiology, Necker-Enfants Malades Hospital, AP-HP, Université de Paris, Paris, France
| | - Marie Hully
- Department of Pediatric Neurology and Rehabilitation, Necker-Enfants Malades Hospital, AP-HP, Université de Paris, Paris, France
| | - Olivier Goulet
- Department of Pediatric Gastroenterology-Hepatology-Nutrition, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Christophe Chardot
- Department of Pediatric Surgery, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Severine Drunat
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Université de Paris, NeuroDiderot, INSERM UMR 1141, Paris, France
| | - Yline Capri
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France
| | - Christine Bole-Feysot
- Genomics Core Facility, Imagine Institute-Structure Federative de Recherche Necker, INSERM UMR 1163 and INSERM US24/CNRS UMS 3633, Université de Paris, Paris, France
| | | | - Sandra Whalen
- Clinical Genetics Unit and Reference Center, Anomalies du Développement et Syndromes Malformatifs, AP-HP, Sorbonne University, Armand Trousseau Hospital, Paris, France
| | - Linda Mouthon
- Department of Genetics, La Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Holly E Babcock
- Children's National Hospital, Rare Disease Institute, Washington, DC, USA
| | - Robert Hofstra
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, Netherlands
| | - Irenaeus Fm de Coo
- Department of Toxicogenomics, Unit Clinical Genomics, Maastricht University, MHeNs School for Mental Health and Neuroscience, Maastricht, Netherlands
| | - Anne-Claude Tabet
- Genetics Department, Robert Debré Hospital, AP-HP, Paris, France.,Human Genetics and Cognitive Functions, Institut Pasteur, UMR3571 CNRS, Université de Paris, Paris, France
| | - Thierry J Molina
- Pathology Department, Assistance Publique Hôpitaux de Paris (AP-HP), Necker-Enfants Malades Hospital, Paris, France.,Université de Paris, Imagine Institute, Laboratory of Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM UMR 1163, Paris, France
| | - Boris Keren
- Department of Genetics, La Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Alice Brooks
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, Netherlands
| | - Hubert Jm Smeets
- Department of Toxicogenomics, Unit Clinical Genomics, Maastricht University, MHeNs School for Mental Health and Neuroscience, Maastricht, Netherlands
| | - Ulrika Marklund
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Christopher T Gordon
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
| | - Stanislas Lyonnet
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France.,Fédération de Génétique, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Jeanne Amiel
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France.,Fédération de Génétique, Necker-Enfants Malades Hospital, AP-HP, Paris, France
| | - Nadège Bondurand
- Laboratory of Embryology and Genetics of Human Malformation, Imagine Institute, INSERM UMR 1163, Université de Paris, Paris, France
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15
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Franken GAC, Müller D, Mignot C, Keren B, Lévy J, Tabet AC, Germanaud D, Tejada MI, Kroes HY, Nievelstein RAJ, Brimble E, Ruzhnikov M, Claverie-Martin F, Szczepańska M, Ćuk M, Latta F, Konrad M, Martínez-Cruz LA, Bindels RJM, Hoenderop JGJ, Schlingmann KP, de Baaij JHF. The phenotypic and genetic spectrum of patients with heterozygous mutations in cyclin M2 (CNNM2). Hum Mutat 2021; 42:473-486. [PMID: 33600043 PMCID: PMC8248058 DOI: 10.1002/humu.24182] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/05/2021] [Accepted: 02/10/2021] [Indexed: 12/21/2022]
Abstract
Hypomagnesemia, seizures, and intellectual disability (HSMR) syndrome is a rare disorder caused by mutations in the cyclin M2 (CNNM2) gene. Due to the limited number of cases, extensive phenotype analyses of these patients have not been performed, hindering early recognition of patients. In this study, we established the largest cohort of HSMR to date, aiming to improve recognition and diagnosis of this complex disorder. Eleven novel variants in CNNM2 were identified in nine single sporadic cases and in two families with suspected HSMR syndrome. 25Mg2+ uptake assays demonstrated loss‐of‐function in seven out of nine variants in CNNM2. Interestingly, the pathogenic mutations resulted in decreased plasma membrane expression. The phenotype of those affected by pathogenic CNNM2 mutations was compared with five previously reported cases of HSMR. All patients suffered from hypomagnesemia (0.44–0.72 mmol/L), which could not be fully corrected by Mg2+ supplementation. The majority of patients (77%) experienced generalized seizures and exhibited mild to moderate intellectual disability and speech delay. Moreover, severe obesity was present in most patients (89%). Our data establish hypomagnesemia, seizures, intellectual disability, and obesity as hallmarks of HSMR syndrome. The assessment of these major features offers a straightforward tool for the clinical diagnosis of HSMR.
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Affiliation(s)
- Gijs A C Franken
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dominik Müller
- Department of Pediatric Gastroenterology, Nephrology and Metabolism, Charité Universitäts Medizin, Berlin, Germany
| | - Cyril Mignot
- Département de Genetique, Centre de Référence Déficiences Intellectuelles de Causes Rares, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Boris Keren
- Département de Génétique, Groupe Hospitalier, Pitié-Salpêtrière, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Jonathan Lévy
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - David Germanaud
- Pediatric Neurology Department, Centre de Référence Déficiences Intellectuelles de Causes Rares, Service de Neurologie Pédiatrique, Hôpital Robert-Debré, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - María-Isabel Tejada
- Osakidetza Basque Health Service, Cruces University Hospital, Genetics Service and Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Spanish Consortium for Research on Rare Diseases (CIBERER), Valencia, Spain
| | - Hester Y Kroes
- Department of Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rutger A J Nievelstein
- Department of Pediatric Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Elise Brimble
- Department of Neurology and Neurological Sciences, Stanford Medicine, Stanford, California, USA
| | - Maria Ruzhnikov
- Department of Neurology and Neurological Sciences, Stanford Medicine, Stanford, California, USA
| | - Felix Claverie-Martin
- Unidad de Investigación, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Maria Szczepańska
- Department of Pediatrics, Medical University of Silesia, Katowice, Poland
| | - Martin Ćuk
- Department of Pediatrics, Children's Hospital Zagreb, Zagreb, Croatia
| | - Femke Latta
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Martin Konrad
- Department of General Pediatrics, University Children's Hospital, Münster, Germany
| | - Luis A Martínez-Cruz
- Structural Biology Unit, Center for Cooperative Research in Biosciences (CIC bioGUNE), Technology Park of Bizkaia, Derio, Spain
| | - René J M Bindels
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joost G J Hoenderop
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Jeroen H F de Baaij
- Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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16
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M'kacher R, Colicchio B, Marquet V, Borie C, Najar W, Hempel WM, Heidingsfelder L, Oudrhiri N, Al Jawhari M, Wilhelm-Murer N, Miguet M, Dieterlen A, Deschênes G, Tabet AC, Junker S, Grynberg M, Fenech M, Bennaceur-Griscelli A, Voisin P, Carde P, Jeandidier E, Yardin C. Telomere aberrations, including telomere loss, doublets, and extreme shortening, are increased in patients with infertility. Fertil Steril 2020; 115:164-173. [PMID: 33272625 DOI: 10.1016/j.fertnstert.2020.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To test the hypothesis that telomere shortening and/or loss are risk factors for infertility. DESIGN Retrospective analysis of the telomere status in patients with infertility using conventional cytogenetic data collected prospectively. SETTING Academic centers. PATIENT(S) Cytogenetic slides with cultured peripheral lymphocytes from 50 patients undergoing fertility treatment and 150 healthy donors, including 100 donors matched for age. INTERVENTION(S) Cytogenetic slides were used to detect chromosomal and telomere aberrations. MAIN OUTCOME MEASURE(S) Telomere length and telomere aberrations were analyzed after telomere and centromere staining. RESULT(S) The mean telomere length of patients consulting for infertility was significantly less than that of healthy donors of similar age. Moreover, patients with infertility showed significantly more extreme telomere loss and telomere doublet formation than healthy controls. Telomere shortening and/or telomere aberrations were more pronounced in patients with structural chromosomal aberrations. Dicentric chromosomes were identified in 6/13 patients, with constitutional chromosomal aberrations leading to chromosomal instability that correlated with chromosomal end-to-end fusions. CONCLUSION(S) Our findings demonstrate the feasibility of analyzing telomere aberrations in addition to chromosomal aberrations, using cytogenetic slides. Telomere attrition and/or dysfunction represent the main common cytogenetic characteristic of patients with infertility, leading to potential implications for fertility assessment. Pending further studies, these techniques that correlate the outcome of assisted reproduction and telomere integrity status may represent a novel and useful diagnostic and/or prognostic tool for medical care in this field.
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Affiliation(s)
- Radhia M'kacher
- Cell Environment, DNA Damage Research & Development, Paris, France.
| | - Bruno Colicchio
- Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, Mulhouse, France
| | - Valentine Marquet
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l'Enfant, Centre hospitalo-universitaire Dupuytren, Limoges, France
| | - Claire Borie
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | - Wala Najar
- Cell Environment, DNA Damage Research & Development, Paris, France; Faculté de médecine Paris Centre, Université de Paris, Paris, France
| | - William M Hempel
- Cell Environment, DNA Damage Research & Development, Paris, France
| | | | - Noufissa Oudrhiri
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | | | - Nadège Wilhelm-Murer
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Marguerite Miguet
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Alain Dieterlen
- Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, Mulhouse, France
| | | | | | - Steffen Junker
- Institute of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Michael Grynberg
- Department of Reproductive Medicine and Fertility Preservation, Hôpital Antoine Béclère, Clamart, France
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, Australia; Genome Health Foundation, North Brighton, South Australia, Australia
| | - Annelise Bennaceur-Griscelli
- Assitance Pubique-Hopitaux de Paris (APHP)-Service d'hématologie-Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/INSERM 935, Villejuif, France
| | - Philippe Voisin
- Cell Environment, DNA Damage Research & Development, Paris, France
| | - Patrice Carde
- Department of Hematology, Gustave Roussy Cancer Campus, Villejuif, France
| | - Eric Jeandidier
- Service de génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace, Mulhouse, France
| | - Catherine Yardin
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l'Enfant, Centre hospitalo-universitaire Dupuytren, Limoges, France; CNRS, XLIM, UMR 7252, University of Limoges, Limoges, France
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17
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M’kacher R, Colicchio B, Borie C, Junker S, Marquet V, Heidingsfelder L, Soehnlen K, Najar W, Hempel WM, Oudrhiri N, Wilhelm-Murer N, Miguet M, Arnoux M, Ferrapie C, Kerbrat W, Plesch A, Dieterlen A, Girinsky T, Voisin P, Deschenes G, Tabet AC, Yardin C, Bennaceur-Griscelli A, Fenech M, Carde P, Jeandidier E. Telomere and Centromere Staining Followed by M-FISH Improves Diagnosis of Chromosomal Instability and Its Clinical Utility. Genes (Basel) 2020; 11:genes11050475. [PMID: 32349350 PMCID: PMC7291161 DOI: 10.3390/genes11050475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
Dicentric chromosomes are a relevant marker of chromosomal instability. Their appearance is associated with telomere dysfunction, leading to cancer progression and a poor clinical outcome. Here, we present Telomere and Centromere staining followed by M-FISH (TC+M-FISH) for improved detection of telomere dysfunction and the identification of dicentric chromosomes in cancer patients and various genetic syndromes. Significant telomere length shortening and significantly higher frequencies of telomere loss and deletion were found in the peripheral lymphocytes of patients with cancer and genetic syndromes relative to similar age-matched healthy donors. We assessed our technique against conventional cytogenetics for the detection of dicentric chromosomes by subjecting metaphase preparations to both approaches. We identified dicentric chromosomes in 28/50 cancer patients and 21/44 genetic syndrome patients using our approach, but only 7/50 and 12/44, respectively, using standard cytogenetics. We ascribe this discrepancy to the identification of the unique configuration of dicentric chromosomes. We observed significantly higher frequencies of telomere loss and deletion in patients with dicentric chromosomes (p < 10−4). TC+M-FISH analysis is superior to classical cytogenetics for the detection of chromosomal instability. Our approach is a relatively simple but useful tool for documenting telomere dysfunction and chromosomal instability with the potential to become a standard additional diagnostic tool in medical genetics and the clinic.
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Affiliation(s)
- Radhia M’kacher
- Cell Environment, DNA Damage R&D, 75020 Paris, France; (K.S.); (W.N.); (W.M.H.); (P.V.)
- Correspondence:
| | - Bruno Colicchio
- IRIMAS, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, 68093 Mulhouse, France; (B.C.); (A.D.)
| | - Claire Borie
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Steffen Junker
- Institute of Biomedicine, University of Aarhus, DK-8000 Aarhus, Denmark;
| | - Valentine Marquet
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l’Enfant, CHU Dupuytren, 87042 Limoges, France; (V.M.); (C.Y.)
| | | | - Kevin Soehnlen
- Cell Environment, DNA Damage R&D, 75020 Paris, France; (K.S.); (W.N.); (W.M.H.); (P.V.)
| | - Wala Najar
- Cell Environment, DNA Damage R&D, 75020 Paris, France; (K.S.); (W.N.); (W.M.H.); (P.V.)
- IRIMAS, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, 68093 Mulhouse, France; (B.C.); (A.D.)
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
- Institute of Biomedicine, University of Aarhus, DK-8000 Aarhus, Denmark;
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l’Enfant, CHU Dupuytren, 87042 Limoges, France; (V.M.); (C.Y.)
- MetaSystems GmbH, Robert-Bosch-Str., 6 D-68804 Altlussheim, Germany; (L.H.); (A.P.)
- Faculté de Médicine, Université Paris Descartes, 75005 Paris, France
| | - William M. Hempel
- Cell Environment, DNA Damage R&D, 75020 Paris, France; (K.S.); (W.N.); (W.M.H.); (P.V.)
| | - Noufissa Oudrhiri
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Nadège Wilhelm-Murer
- Service de Génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace Mulhouse, 68070 Mulhouse, France; (N.W.-M.); (M.M.); (E.J.)
| | - Marguerite Miguet
- Service de Génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace Mulhouse, 68070 Mulhouse, France; (N.W.-M.); (M.M.); (E.J.)
| | - Micheline Arnoux
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Catherine Ferrapie
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Wendy Kerbrat
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Andreas Plesch
- MetaSystems GmbH, Robert-Bosch-Str., 6 D-68804 Altlussheim, Germany; (L.H.); (A.P.)
| | - Alain Dieterlen
- IRIMAS, Institut de Recherche en Informatique, Mathématiques, Automatique et Signal, Université de Haute-Alsace, 68093 Mulhouse, France; (B.C.); (A.D.)
| | - Theodore Girinsky
- Department of Radiation Oncology, Gustave Roussy Cancer Campus, 94800 Villejuif, France;
| | - Philippe Voisin
- Cell Environment, DNA Damage R&D, 75020 Paris, France; (K.S.); (W.N.); (W.M.H.); (P.V.)
| | - Georges Deschenes
- Nephrology Department, APHP-Hopital Robert Debré, 75019 Paris, France;
| | - Anne-Claude Tabet
- Cytogenetic Laboratory, APHP-Hopital Robert Debré, 75019 Paris, France;
| | - Catherine Yardin
- Service de Cytogénétique, Génétique Médicale, et Biologie de la Reproduction Hôpital de la Mère et de l’Enfant, CHU Dupuytren, 87042 Limoges, France; (V.M.); (C.Y.)
| | - Annelise Bennaceur-Griscelli
- APHP-Service D’hématologie Oncohématologie Moléculaire et Cytogénétique Hôpital Paul Brousse Université Paris Saclay/ Inserm UMR 935, 94800 Villejuif, France; (C.B.); (N.O.); (M.A.); (C.F.); (W.K.); (A.B.-G.)
| | - Michael Fenech
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia;
- Genome Health Foundation, North Brighton, SA 5048, Australia
| | - Patrice Carde
- Department of Hematology, Gustave Roussy Cancer Campus, 94800 Villejuif, France;
| | - Eric Jeandidier
- Service de Génétique Groupe Hospitalier de la Région de Mulhouse et Sud Alsace Mulhouse, 68070 Mulhouse, France; (N.W.-M.); (M.M.); (E.J.)
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18
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Wagner M, Lévy J, Jung-Klawitter S, Bakhtiari S, Monteiro F, Maroofian R, Bierhals T, Hempel M, Elmaleh-Bergès M, Kitajima JP, Kim CA, Salomao JG, Amor DJ, Cooper MS, Perrin L, Pipiras E, Neu A, Doosti M, Karimiani EG, Toosi MB, Houlden H, Jin SC, Si YC, Rodan LH, Venselaar H, Kruer MC, Kok F, Hoffmann GF, Strom TM, Wortmann SB, Tabet AC, Opladen T. Loss of TNR causes a nonprogressive neurodevelopmental disorder with spasticity and transient opisthotonus. Genet Med 2020; 22:1061-1068. [PMID: 32099069 DOI: 10.1038/s41436-020-0768-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 11/18/2019] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE TNR, encoding Tenascin-R, is an extracellular matrix glycoprotein involved in neurite outgrowth and neural cell adhesion, proliferation and migration, axonal guidance, myelination, and synaptic plasticity. Tenascin-R is exclusively expressed in the central nervous system with highest expression after birth. The protein is crucial in the formation of perineuronal nets that ensheath interneurons. However, the role of Tenascin-R in human pathology is largely unknown. We aimed to establish TNR as a human disease gene and unravel the associated clinical spectrum. METHODS Exome sequencing and an online matchmaking tool were used to identify patients with biallelic variants in TNR. RESULTS We identified 13 individuals from 8 unrelated families with biallelic variants in TNR sharing a phenotype consisting of spastic para- or tetraparesis, axial muscular hypotonia, developmental delay, and transient opisthotonus. Four homozygous loss-of-function and four different missense variants were identified. CONCLUSION We establish TNR as a disease gene for an autosomal recessive nonprogressive neurodevelopmental disorder with spasticity and transient opisthotonus and highlight the role of central nervous system extracellular matrix proteins in the pathogenicity of spastic disorders.
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Affiliation(s)
- Matias Wagner
- Institute of Human Genetics, Faculty of Medicine, Technical University München, Munich, Germany. .,Institute of Human Genetics, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany. .,Institut für Neurogenomik, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany.
| | - Jonathan Lévy
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Sabine Jung-Klawitter
- Division of Neuropediatrics and Metabolic Medicine, University Children's Hospital, Heidelberg, Germany
| | - Somayeh Bakhtiari
- Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ, USA.,Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics, University of Arizona College of Medicine, Phoenix, AZ, USA
| | | | - Reza Maroofian
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, UK
| | - Tatjana Bierhals
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maja Hempel
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | | | - Chong A Kim
- Genetic Unit, Instituto da Criança-HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Julia G Salomao
- Genetic Unit, Instituto da Criança-HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - David J Amor
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Monica S Cooper
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Melbourne, VIC, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Laurence Perrin
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Eva Pipiras
- Department of Cytogenetics, Jean-Verdier Hospital, Paris 13 University, Embryology and Histology, AP-HP, Bondy, France
| | - Axel Neu
- Department of Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mohammad Doosti
- Department of Genetics, Next Generation Genetic Polyclinic, Mashhad, Iran
| | - Ehsan G Karimiani
- Genetics Research Centre, Molecular and Clinical Sciences Institute, St. George's, University, London, UK
| | - Mehran B Toosi
- Department of Pediatric Neurology, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Henry Houlden
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, UK
| | - Sheng Chih Jin
- Laboratory of Human Genetics and Genomics, The Rockefeller University, New York, NY, USA
| | | | - Lance H Rodan
- Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA
| | - Hanka Venselaar
- Centre for Molecular and Biomolecular Informatics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Michael C Kruer
- Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ, USA.,Departments of Child Health, Neurology, Cellular & Molecular Medicine and Program in Genetics, University of Arizona College of Medicine, Phoenix, AZ, USA
| | - Fernando Kok
- Mendelics Genomic Analysis, São Paulo, São Paulo, Brazil
| | - Georg F Hoffmann
- Division of Neuropediatrics and Metabolic Medicine, University Children's Hospital, Heidelberg, Germany
| | - Tim M Strom
- Institute of Human Genetics, Faculty of Medicine, Technical University München, Munich, Germany
| | - Saskia B Wortmann
- Institute of Human Genetics, Faculty of Medicine, Technical University München, Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany.,University Childrens Hospital, Paracelsus Medical University, Salzburg, Austria
| | - Anne-Claude Tabet
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France.,Neuroscience Department, Human Genetics and Cognitive Function Unit, Pasteur Institute, Paris, France
| | - Thomas Opladen
- Division of Neuropediatrics and Metabolic Medicine, University Children's Hospital, Heidelberg, Germany.
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19
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Lévy J, Capri Y, Rachid M, Dupont C, Vermeesch JR, Devriendt K, Verloes A, Tabet AC, Bailleul-Forestier I. LEF1 haploinsufficiency causes ectodermal dysplasia. Clin Genet 2020; 97:595-600. [PMID: 32022899 DOI: 10.1111/cge.13714] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 10/25/2019] [Revised: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 11/30/2022]
Abstract
Ectodermal dysplasias are a family of genodermatoses commonly associated with variants in the ectodysplasin/NF-κB or the Wnt/β-catenin pathways. Both pathways are involved in signal transduction from ectoderm to mesenchyme during the development of ectoderm-derived structures. Wnt/β-catenin pathway requires the lymphoid enhancer-binding factor 1 (LEF1), a nuclear mediator, to activate target gene expression. In mice, targeted inactivation of the LEF1 gene results in a complete block of development of multiple ectodermal appendages. We report two unrelated patients with 4q25 de novo deletion encompassing LEF1, associated with severe oligodontia of primary and permanent dentition, hypotrichosis and hypohidrosis compatible with hypohidrotic ectodermal dysplasia. Taurodontism and a particular alveolar bone defect were also observed in both patients. So far, no pathogenic variants or variations involving the LEF1 gene have been reported in human. We provide further evidence for LEF1 haploinsufficiency role in ectodermal dysplasia and delineate its clinical phenotype.
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Affiliation(s)
- Jonathan Lévy
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Yline Capri
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Myriam Rachid
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Céline Dupont
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Joris R Vermeesch
- Department of Human Genetics, KU Leuven, Leuven, Belgium.,Center of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Koen Devriendt
- Department of Human Genetics, KU Leuven, Leuven, Belgium.,Center of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Alain Verloes
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France.,Neuroscience Department, Génétique Humaine et Fonction Cognitive Unit, Pasteur Institute, Paris, France
| | - Isabelle Bailleul-Forestier
- Department of Paediatric Dentistry, Rare Oral and Dental Competence Center, CHU Toulouse, Paul Sabatier University, Toulouse, France
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20
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Zawerton A, Mignot C, Sigafoos A, Blackburn PR, Haseeb A, McWalter K, Ichikawa S, Nava C, Keren B, Charles P, Marey I, Tabet AC, Levy J, Perrin L, Hartmann A, Lesca G, Schluth-Bolard C, Monin P, Dupuis-Girod S, Guillen Sacoto MJ, Schnur RE, Zhu Z, Poisson A, El Chehadeh S, Alembik Y, Bruel AL, Lehalle D, Nambot S, Moutton S, Odent S, Jaillard S, Dubourg C, Hilhorst-Hofstee Y, Barbaro-Dieber T, Ortega L, Bhoj EJ, Masser-Frye D, Bird LM, Lindstrom K, Ramsey KM, Narayanan V, Fassi E, Willing M, Cole T, Salter CG, Akilapa R, Vandersteen A, Canham N, Rump P, Gerkes EH, Klein Wassink-Ruiter JS, Bijlsma E, Hoffer MJV, Vargas M, Wojcik A, Cherik F, Francannet C, Rosenfeld JA, Machol K, Scott DA, Bacino CA, Wang X, Clark GD, Bertoli M, Zwolinski S, Thomas RH, Akay E, Chang RC, Bressi R, Sanchez Russo R, Srour M, Russell L, Goyette AME, Dupuis L, Mendoza-Londono R, Karimov C, Joseph M, Nizon M, Cogné B, Kuechler A, Piton A, Klee EW, Lefebvre V, Clark KJ, Depienne C. Widening of the genetic and clinical spectrum of Lamb-Shaffer syndrome, a neurodevelopmental disorder due to SOX5 haploinsufficiency. Genet Med 2019; 22:524-537. [PMID: 31578471 DOI: 10.1038/s41436-019-0657-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 06/05/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Lamb-Shaffer syndrome (LAMSHF) is a neurodevelopmental disorder described in just over two dozen patients with heterozygous genetic alterations involving SOX5, a gene encoding a transcription factor regulating cell fate and differentiation in neurogenesis and other discrete developmental processes. The genetic alterations described so far are mainly microdeletions. The present study was aimed at increasing our understanding of LAMSHF, its clinical and genetic spectrum, and the pathophysiological mechanisms involved. METHODS Clinical and genetic data were collected through GeneMatcher and clinical or genetic networks for 41 novel patients harboring various types ofSOX5 alterations. Functional consequences of selected substitutions were investigated. RESULTS Microdeletions and truncating variants occurred throughout SOX5. In contrast, most missense variants clustered in the pivotal SOX-specific high-mobility-group domain. The latter variants prevented SOX5 from binding DNA and promoting transactivation in vitro, whereas missense variants located outside the high-mobility-group domain did not. Clinical manifestations and severity varied among patients. No clear genotype-phenotype correlations were found, except that missense variants outside the high-mobility-group domain were generally better tolerated. CONCLUSIONS This study extends the clinical and genetic spectrum associated with LAMSHF and consolidates evidence that SOX5 haploinsufficiency leads to variable degrees of intellectual disability, language delay, and other clinical features.
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Affiliation(s)
- Ash Zawerton
- Department of Cellular & Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Cyril Mignot
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,AP-HP, Hôpital Pitié-Salpêtrière, Département de Génétique et de Cytogénétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, GRC UPMC « Déficience Intellectuelle et Autisme », Paris, France
| | - Ashley Sigafoos
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Patrick R Blackburn
- Center for Individualized Medicine, Department of Health Science Research, and Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Abdul Haseeb
- Department of Surgery, Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Shoji Ichikawa
- Department of Clinical Diagnostics, Ambry Genetics, Aliso Viejo, CA, USA
| | - Caroline Nava
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,AP-HP, Hôpital Pitié-Salpêtrière, Département de Génétique et de Cytogénétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, GRC UPMC « Déficience Intellectuelle et Autisme », Paris, France
| | - Boris Keren
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,AP-HP, Hôpital Pitié-Salpêtrière, Département de Génétique et de Cytogénétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, GRC UPMC « Déficience Intellectuelle et Autisme », Paris, France
| | - Perrine Charles
- AP-HP, Hôpital Pitié-Salpêtrière, Département de Génétique et de Cytogénétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, GRC UPMC « Déficience Intellectuelle et Autisme », Paris, France
| | - Isabelle Marey
- AP-HP, Hôpital Pitié-Salpêtrière, Département de Génétique et de Cytogénétique; Centre de Référence Déficiences Intellectuelles de Causes Rares, GRC UPMC « Déficience Intellectuelle et Autisme », Paris, France
| | - Anne-Claude Tabet
- Genetics Department, Robert Debré Hospital, APHP, Paris, France.,Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
| | - Jonathan Levy
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Laurence Perrin
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Andreas Hartmann
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,APHP, Department of Neurology, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Gaetan Lesca
- Service de Génétique, Hospices Civils de Lyon - GHE, Lyon, France.,CNRS UMR 5292, INSERM U1028, CNRL, and Université Claude Bernard Lyon 1, GHE, Lyon, France
| | - Caroline Schluth-Bolard
- Service de Génétique, Hospices Civils de Lyon - GHE, Lyon, France.,CNRS UMR 5292, INSERM U1028, CNRL, and Université Claude Bernard Lyon 1, GHE, Lyon, France
| | - Pauline Monin
- Service de Génétique, Hospices Civils de Lyon - GHE, Lyon, France
| | - Sophie Dupuis-Girod
- Service de Génétique, Hospices Civils de Lyon - GHE, Lyon, France.,Centre de référence pour la maladie de Rendu-Osler, Bron, France
| | | | | | | | - Alice Poisson
- GénoPsy, Reference Center for Diagnosis and Management of Genetic Psychiatric Disorders, Centre Hospitalier le Vinatier and EDR-Psy Team (CNRS & Lyon 1 Claude Bernard University), Lyon, France
| | - Salima El Chehadeh
- Département de Génétique Médicale, CHU de Hautepierre, Strasbourg, France
| | - Yves Alembik
- Département de Génétique Médicale, CHU de Hautepierre, Strasbourg, France
| | - Ange-Line Bruel
- INSERM 1231 LNC, Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, France.,FHU-TRANSLAD, Université de Bourgogne/CHU Dijon, Dijon, France
| | - Daphné Lehalle
- INSERM 1231 LNC, Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, France.,Centre de Génétique et Centre de Référence Maladies Rares «Anomalies du Développement de l'Interrégion Est», Hôpital d'Enfants, CHU Dijon Bourgogne, Dijon, France
| | - Sophie Nambot
- INSERM 1231 LNC, Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, France.,Centre de Génétique et Centre de Référence Maladies Rares «Anomalies du Développement de l'Interrégion Est», Hôpital d'Enfants, CHU Dijon Bourgogne, Dijon, France
| | - Sébastien Moutton
- INSERM 1231 LNC, Génétique des Anomalies du Développement, Université de Bourgogne-Franche Comté, Dijon, France.,Centre de Génétique et Centre de Référence Maladies Rares «Anomalies du Développement de l'Interrégion Est», Hôpital d'Enfants, CHU Dijon Bourgogne, Dijon, France
| | - Sylvie Odent
- CHU de Rennes, service de génétique clinique, Rennes, France.,Univ Rennes, CNRS, IGDR, UMR 6290, Rennes, France
| | - Sylvie Jaillard
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France
| | - Christèle Dubourg
- Univ Rennes, CNRS, IGDR, UMR 6290, Rennes, France.,Service de Génétique Moléculaire et Génomique, CHU, Rennes, France
| | | | | | - Lucia Ortega
- Cook Childrens Medical Center, Fort Worth, TX, USA
| | - Elizabeth J Bhoj
- Department of Clinical Genetics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Diane Masser-Frye
- Rady Children's Hospital San Diego, Division of Genetics and Dysmorphology, San Diego, CA, USA
| | - Lynne M Bird
- Rady Children's Hospital San Diego, Division of Genetics and Dysmorphology, San Diego, CA, USA.,Department of Pediatrics, University of California-San Diego, San Diego, CA, USA
| | - Kristin Lindstrom
- Division of Genetics and Metabolism, Phoenix Children's Hospital, Phoenix, AZ, USA
| | - Keri M Ramsey
- Translational Genomics Research Institute (TGen), Center for Rare Childhood Disorders, Phoenix, AZ, USA
| | - Vinodh Narayanan
- Translational Genomics Research Institute (TGen), Center for Rare Childhood Disorders, Phoenix, AZ, USA
| | - Emily Fassi
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Marcia Willing
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Trevor Cole
- West Midlands Regional Genetics Service and Birmingham Health Partners, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | - Claire G Salter
- West Midlands Regional Genetics Service and Birmingham Health Partners, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK.,RILD Wellcome Wolfson Centre, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Rhoda Akilapa
- North West Thames Regional Genetics Service, Northwick Park Hospital, Harrow, London, UK
| | | | - Natalie Canham
- North West Thames Regional Genetics Service, Northwick Park Hospital, London, UK.,Cheshire & Merseyside Regional Genetics Service, Liverpool Women's Hospital, Liverpool, UK
| | - Patrick Rump
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Erica H Gerkes
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | | | - Emilia Bijlsma
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Mariëtte J V Hoffer
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, Netherlands
| | - Marcelo Vargas
- Gillette Children's Specialty Healthcare, St. Paul, MN, USA.,Children's Minnesota, Minneapolis, MN, USA
| | - Antonina Wojcik
- Gillette Children's Specialty Healthcare, St. Paul, MN, USA.,Children's Minnesota, Minneapolis, MN, USA
| | - Florian Cherik
- Service de génétique clinique, Centre de Référence Maladies Rares «Anomalies du Développement et syndromes malformatifs du Sud-Est", CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Christine Francannet
- Service de génétique clinique, Centre de Référence Maladies Rares «Anomalies du Développement et syndromes malformatifs du Sud-Est", CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Jill A Rosenfeld
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Keren Machol
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Daryl A Scott
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA.,Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, USA
| | - Carlos A Bacino
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Xia Wang
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Gary D Clark
- Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA
| | - Marta Bertoli
- Northern Genetics Service-Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Simon Zwolinski
- Northern Genetics Service-Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Rhys H Thomas
- Institute of Neuroscience, Newcastle University, Framlington Place, Newcastle upon Tyne, UK.,Department of Neurology, Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Ela Akay
- Department of Neurology, Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Richard C Chang
- Division of Metabolic Disorders, Children's Hospital of Orange County (CHOC), Orange, CA, USA
| | - Rebekah Bressi
- Division of Metabolic Disorders, Children's Hospital of Orange County (CHOC), Orange, CA, USA
| | | | - Myriam Srour
- Division of Pediatric Neurology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Center, Montreal, QC, Canada
| | - Laura Russell
- Division of Medical Genetics, Department of Specialized Medicine, McGill University, Montreal, QC, Canada
| | - Anne-Marie E Goyette
- Child Development Program, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Center, Montreal, QC, Canada
| | - Lucie Dupuis
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children and University of Toronto, Toronto, ON, Canada
| | - Roberto Mendoza-Londono
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children and University of Toronto, Toronto, ON, Canada
| | | | - Maries Joseph
- Medical Genetics and Metabolism, Valley Children's Hospital, Madera, CA, USA
| | - Mathilde Nizon
- CHU Nantes, Service de Génétique Médicale, Nantes, France.,INSERM, CNRS, UNIV Nantes, l'institut du thorax, Nantes, France
| | - Benjamin Cogné
- CHU Nantes, Service de Génétique Médicale, Nantes, France.,INSERM, CNRS, UNIV Nantes, l'institut du thorax, Nantes, France
| | - Alma Kuechler
- Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Amélie Piton
- Laboratoire de Diagnostic Génétique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,IGBMC, CNRS UMR 7104/INSERM U964/Université de Strasbourg, Illkirch, France
| | | | - Eric W Klee
- Center for Individualized Medicine, Department of Health Science Research, and Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.,Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA
| | - Véronique Lefebvre
- Department of Surgery, Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Karl J Clark
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Christel Depienne
- INSERM U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France. .,Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany. .,IGBMC, CNRS UMR 7104/INSERM U964/Université de Strasbourg, Illkirch, France.
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21
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Guterman S, Beneteau C, Redon S, Dupont C, Missirian C, Jaeger P, Herve B, Jacquin C, Douet-Guilbert N, Till M, Tabet AC, Moradkhani K, Malan V, Doco-Fenzy M, Vialard F. Prenatal findings in 1p36 deletion syndrome: New cases and a literature review. Prenat Diagn 2019; 39:871-882. [PMID: 31172545 DOI: 10.1002/pd.5498] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 11/19/2018] [Revised: 03/21/2019] [Accepted: 05/18/2019] [Indexed: 11/12/2022]
Abstract
OBJECTIVE/METHOD 1p36 deletion syndrome is considered to be the most common deletion after 22q11.2 deletion. It is characterized by specific facial features, developmental delay, and organ defects. The primary objective of the present multicenter study was to survey all the cases of 1p36 deletion diagnosed prenatally by French cytogenetics laboratories using a chromosomal microarray. We then compared these new cases with the literature data. RESULTS Ten new cases were reported. On average, the 1p36 deletion was diagnosed at 19 weeks of gestation. The size of the deletion ranged from 1.6 to 16 Mb. The 1p36 deletion was the only chromosomal abnormality in eight cases and was associated with a complex chromosome 1 rearrangement in the two remaining cases. The invasive diagnostic procedure had always been prompted by abnormal ultrasound findings: elevated nuchal translucency, structural brain abnormality, retrognathia, or a cardiac defect. Multiple anomalies were present in all cases. DISCUSSION We conclude that 1p36 deletion is not associated with any specific prenatal signs. We suggest that a prenatal observation of ventriculomegaly, congenital heart defect, or facial dysmorphism should prompt the clinician to consider a diagnosis of 1p36 deletion syndrome.
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Affiliation(s)
- Sarah Guterman
- Fédération de Génétique, Centre Hospitalier Intercommunal Poissy-St-Germain-en-Laye, Poissy, France
- EA-7404-GIG, UFR des Sciences de la santé Simone VEIL, UVSQ, Montigny le Bretonneux, France
| | - Claire Beneteau
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | - Sylvia Redon
- Laboratoire de Génétique Moléculaire, CHU de Brest, Brest, France
| | - Céline Dupont
- Unité de Cytogénétique, Hôpital Robert Debré, Paris, France
| | - Chantal Missirian
- Unité de Génétique Clinique, CHU Marseille-Hôpital de la Timone, Marseille, France
| | - Pauline Jaeger
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | - Berenice Herve
- Fédération de Génétique, Centre Hospitalier Intercommunal Poissy-St-Germain-en-Laye, Poissy, France
- EA-7404-GIG, UFR des Sciences de la santé Simone VEIL, UVSQ, Montigny le Bretonneux, France
| | | | | | - Marianne Till
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | | | | | - Valérie Malan
- Service d'Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, APHP, Paris, France
| | - Martine Doco-Fenzy
- Service de Génétique, CHU de Reims, Reims, France
- EA3801, SFR CAP Santé, Reims, France
| | - François Vialard
- Fédération de Génétique, Centre Hospitalier Intercommunal Poissy-St-Germain-en-Laye, Poissy, France
- EA-7404-GIG, UFR des Sciences de la santé Simone VEIL, UVSQ, Montigny le Bretonneux, France
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22
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Chatron N, Cassinari K, Quenez O, Baert-Desurmont S, Bardel C, Buisine MP, Calpena E, Capri Y, Corominas Galbany J, Diguet F, Edery P, Isidor B, Labalme A, Le Caignec C, Lévy J, Lecoquierre F, Lindenbaum P, Pichon O, Rollat-Farnier PA, Simonet T, Saugier-Veber P, Tabet AC, Toutain A, Wilkie AOM, Lesca G, Sanlaville D, Nicolas G, Schluth-Bolard C. Identification of mobile retrocopies during genetic testing: Consequences for routine diagnosis. Hum Mutat 2019; 40:1993-2000. [PMID: 31230393 DOI: 10.1002/humu.23845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 02/13/2019] [Revised: 05/29/2019] [Accepted: 06/17/2019] [Indexed: 12/24/2022]
Abstract
Human retrocopies, that is messenger RNA transcripts benefitting from the long interspersed element 1 machinery for retrotransposition, may have specific consequences for genomic testing. Next genetration sequencing (NGS) techniques allow the detection of such mobile elements but they may be misinterpreted as genomic duplications or be totally overlooked. We report eight observations of retrocopies detected during diagnostic NGS analyses of targeted gene panels, exome, or genome sequencing. For seven cases, while an exons-only copy number gain was called, read alignment inspection revealed a depth of coverage shift at every exon-intron junction where indels were also systematically called. Moreover, aberrant chimeric read pairs spanned entire introns or were paired with another locus for terminal exons. The 8th retrocopy was present in the reference genome and thus showed a normal NGS profile. We emphasize the existence of retrocopies and strategies to accurately detect them at a glance during genetic testing and discuss pitfalls for genetic testing.
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Affiliation(s)
- Nicolas Chatron
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
| | - Kevin Cassinari
- Department of Genetics and CNR-MAJ, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Olivier Quenez
- Department of Genetics and CNR-MAJ, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Stéphanie Baert-Desurmont
- Department of Genetics, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Claire Bardel
- Bioinformatics group of the Lyon University Hospital NGS facility, Groupement Hospitalier Est, Lyon, France.,Biostatistics and Bioinformatics Department, HCL, Lyon, France
| | - Marie-Pierre Buisine
- Department of Biochemistry and Molecular Biology, JPA Research Center, Inserm UMR-S 1172, Lille University, Lille University Hospital, Lille, France
| | - Eduardo Calpena
- Clinical Genetics Group, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Yline Capri
- Genetics Department, Clinical Genetics Unit, Hôpital Universitaire Robert Debré, Paris, France
| | | | - Flavie Diguet
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
| | - Patrick Edery
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
| | | | - Audrey Labalme
- Genetics Department, Hospices Civils de Lyon, Lyon, France
| | - Cedric Le Caignec
- Genetics Department, CHU Nantes, Nantes, France.,INSERM UMR_S915, Institut du thorax, Nantes University, Nantes, France
| | - Jonathan Lévy
- Genetics Department, Cytogenetics Unit, Hôpital Universitaire Robert Debré, Paris, France
| | - François Lecoquierre
- Department of Genetics, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Pierre Lindenbaum
- INSERM, UMR_S1087, Institut du thorax, Nantes, France.,CNRS, UMR 6291, Nantes, France
| | | | - Pierre-Antoine Rollat-Farnier
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,Bioinformatics group of the Lyon University Hospital NGS facility, Groupement Hospitalier Est, Lyon, France
| | - Thomas Simonet
- Cellular Biotechnology Center, Hospices Civils de Lyon, Lyon, France.,Nerve-Muscle Interactions Team, Institut NeuroMyoGène CNRS UMR 5310-INSERM U1217-Université Claude Bernard Lyon 1, Lyon, France
| | - Pascale Saugier-Veber
- Department of Genetics, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Anne-Claude Tabet
- Genetics Department, Cytogenetics Unit, Hôpital Universitaire Robert Debré, Paris, France.,Neuroscience Department, Human Genetics and Cognitive Function Unit, Institut Pasteur, Paris, France
| | - Annick Toutain
- Genetics Department, Hôpital Bretonneau, CHU, Tours, France.,UMR 1253, iBrain, Tours University, Inserm, Tours, France
| | - Andrew O M Wilkie
- Clinical Genetics Group, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Gaetan Lesca
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
| | - Damien Sanlaville
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
| | - Gaël Nicolas
- Department of Genetics and CNR-MAJ, Normandie Univ, UNIROUEN, Inserm U1245 and Rouen University Hospital, F 76000, Normandy Center for Genomic and Personalized Medicine, Rouen, France
| | - Caroline Schluth-Bolard
- Genetics Department, Hospices Civils de Lyon, Lyon, France.,GENDEV Team, CRNL, INSERM U1028, CNRS UMR5292, UCBL1, Lyon, France
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23
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Schluth-Bolard C, Diguet F, Chatron N, Rollat-Farnier PA, Bardel C, Afenjar A, Amblard F, Amiel J, Blesson S, Callier P, Capri Y, Collignon P, Cordier MP, Coubes C, Demeer B, Chaussenot A, Demurger F, Devillard F, Doco-Fenzy M, Dupont C, Dupont JM, Dupuis-Girod S, Faivre L, Gilbert-Dussardier B, Guerrot AM, Houlier M, Isidor B, Jaillard S, Joly-Hélas G, Kremer V, Lacombe D, Le Caignec C, Lebbar A, Lebrun M, Lesca G, Lespinasse J, Levy J, Malan V, Mathieu-Dramard M, Masson J, Masurel-Paulet A, Mignot C, Missirian C, Morice-Picard F, Moutton S, Nadeau G, Pebrel-Richard C, Odent S, Paquis-Flucklinger V, Pasquier L, Philip N, Plutino M, Pons L, Portnoï MF, Prieur F, Puechberty J, Putoux A, Rio M, Rooryck-Thambo C, Rossi M, Sarret C, Satre V, Siffroi JP, Till M, Touraine R, Toutain A, Toutain J, Valence S, Verloes A, Whalen S, Edery P, Tabet AC, Sanlaville D. Whole genome paired-end sequencing elucidates functional and phenotypic consequences of balanced chromosomal rearrangement in patients with developmental disorders. J Med Genet 2019; 56:526-535. [PMID: 30923172 DOI: 10.1136/jmedgenet-2018-105778] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 10/02/2018] [Revised: 01/30/2019] [Accepted: 02/20/2019] [Indexed: 11/04/2022]
Abstract
BACKGROUND Balanced chromosomal rearrangements associated with abnormal phenotype are rare events, but may be challenging for genetic counselling, since molecular characterisation of breakpoints is not performed routinely. We used next-generation sequencing to characterise breakpoints of balanced chromosomal rearrangements at the molecular level in patients with intellectual disability and/or congenital anomalies. METHODS Breakpoints were characterised by a paired-end low depth whole genome sequencing (WGS) strategy and validated by Sanger sequencing. Expression study of disrupted and neighbouring genes was performed by RT-qPCR from blood or lymphoblastoid cell line RNA. RESULTS Among the 55 patients included (41 reciprocal translocations, 4 inversions, 2 insertions and 8 complex chromosomal rearrangements), we were able to detect 89% of chromosomal rearrangements (49/55). Molecular signatures at the breakpoints suggested that DNA breaks arose randomly and that there was no major influence of repeated elements. Non-homologous end-joining appeared as the main mechanism of repair (55% of rearrangements). A diagnosis could be established in 22/49 patients (44.8%), 15 by gene disruption (KANSL1, FOXP1, SPRED1, TLK2, MBD5, DMD, AUTS2, MEIS2, MEF2C, NRXN1, NFIX, SYNGAP1, GHR, ZMIZ1) and 7 by position effect (DLX5, MEF2C, BCL11B, SATB2, ZMIZ1). In addition, 16 new candidate genes were identified. Systematic gene expression studies further supported these results. We also showed the contribution of topologically associated domain maps to WGS data interpretation. CONCLUSION Paired-end WGS is a valid strategy and may be used for structural variation characterisation in a clinical setting.
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Affiliation(s)
- Caroline Schluth-Bolard
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Flavie Diguet
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Nicolas Chatron
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | | | - Claire Bardel
- Cellule bioinformatique de la plateforme NGS, Hospices Civils de Lyon, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR5558, Lyon 1 University, Bron, France
| | - Alexandra Afenjar
- Département de génétique et embryologie médicale, Centre de référence des déficiences intellectuelles de causes rares, AP-HP, Hôpital Armand Trousseau, Paris, France.,GRC n°19, pathologies Congénitales du Cervelet-LeucoDystrophies, AP-HP, Hôpital Armand Trousseau, Sorbonne Université, Paris, France
| | - Florence Amblard
- Laboratoire de Génétique Chromosomique, Hôpital Couple Enfant, CHU Grenoble, Grenoble, France
| | - Jeanne Amiel
- Service de Génétique Médicale, Hôpital Necker-Enfants Malades, Paris, France
| | | | | | - Yline Capri
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | | | | | - Christine Coubes
- Service de Génétique, Hôpital Arnaud de Villeneuve, Montpellier, France
| | - Benedicte Demeer
- Centre d'activité de génétique clinique, CLAD nord de France, CHU Amiens, Amiens, France
| | | | | | - Françoise Devillard
- Laboratoire de Génétique Chromosomique, Hôpital Couple Enfant, CHU Grenoble, Grenoble, France
| | | | - Céline Dupont
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Jean-Michel Dupont
- Laboratoire de Cytogénétique Constitutionnelle, APHP-HUPC site Cochin, Paris, France
| | | | - Laurence Faivre
- Centre de référence anomalies du développement et syndromes malformatifs, FHU TRANSLAD et équipe GAD INSERM UMR1231, CHU Dijon-Bourgogne et Université de Bourgogne-Franche Comté, Dijon, France
| | | | | | - Marine Houlier
- Service de Génétique Médicale, Hôpital Necker-Enfants Malades, Paris, France
| | | | - Sylvie Jaillard
- Laboratoire de Cytogénétique et de Biologie Cellulaire, CHU Pontchaillou, Rennes, France
| | | | - Valérie Kremer
- Laboratoire de Cytogénétique, CHU Strasbourg, Strasbourg, France
| | - Didier Lacombe
- Service de Génétique Médicale, Hôpital Pellegrin, Université de Bordeaux, MRGM INSERM U1211, CHU Bordeaux, Bordeaux, France
| | | | - Aziza Lebbar
- Laboratoire de Cytogénétique Constitutionnelle, APHP-HUPC site Cochin, Paris, France
| | - Marine Lebrun
- Service de Génétique Clinique, Chromosomique et Moléculaire, CHU Hôpital Nord, Saint-Etienne, France
| | - Gaetan Lesca
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - James Lespinasse
- Laboratoire de Génétique Chromosomique, CH Général, Chambéry, France
| | - Jonathan Levy
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Valérie Malan
- Service de Cytogénétique, Hôpital Necker Enfants Malades, Paris, France
| | | | - Julie Masson
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Alice Masurel-Paulet
- Centre de référence anomalies du développement et syndromes malformatifs, FHU TRANSLAD et équipe GAD INSERM UMR1231, CHU Dijon-Bourgogne et Université de Bourgogne-Franche Comté, Dijon, France
| | - Cyril Mignot
- Département de Génétique; Centre de Référence Déficience Intellectuelle de Causes Rares, Groupe Hospitalier Pitié-Salpêtrière, APHP, Paris, France
| | - Chantal Missirian
- Laboratoire de Génétique Chromosomique, Département de Génétique Médicale, AP-HM, Marseille, France
| | - Fanny Morice-Picard
- Service de Génétique Médicale, Hôpital Pellegrin, Université de Bordeaux, MRGM INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - Sébastien Moutton
- Service de Génétique Médicale, Hôpital Pellegrin, Université de Bordeaux, MRGM INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - Gwenaël Nadeau
- Laboratoire de Génétique Chromosomique, CH Général, Chambéry, France.,Service de Cytogénétique, CH Valence, Valence, France
| | - Céline Pebrel-Richard
- Service de Cytogénétique Médicale, Hôpital Estaing, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Sylvie Odent
- Service de Génétique Clinique, CHU Rennes, Rennes, France.,CNRS, IGDR (Institut de Génétique et Développement de Rennes) UMR 6290, Université de Rennes, Rennes, France
| | | | | | - Nicole Philip
- Département de Génétique Médicale, Unité de Génétique Clinique, AP-HM, Marseille, France
| | | | - Linda Pons
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Marie-France Portnoï
- Département de génétique et embryologie médicale, Centre de référence des déficiences intellectuelles de causes rares, AP-HP, Hôpital Armand Trousseau, Paris, France
| | - Fabienne Prieur
- Service de Génétique Clinique, Chromosomique et Moléculaire, CHU Hôpital Nord, Saint-Etienne, France
| | | | - Audrey Putoux
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Marlène Rio
- Service de Génétique Médicale, Hôpital Necker-Enfants Malades, Paris, France
| | - Caroline Rooryck-Thambo
- Service de Génétique Médicale, Hôpital Pellegrin, Université de Bordeaux, MRGM INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - Massimiliano Rossi
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | - Catherine Sarret
- Service de Génétique Médicale, Hôpital Estaing, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Véronique Satre
- Laboratoire de Génétique Chromosomique, Hôpital Couple Enfant, CHU Grenoble, Grenoble, France.,Equipe Génétique, Epigénétique et Thérapies de l'Infertilité, IAB, INSERM 1209, CNRS UMR5309, Grenoble, France
| | - Jean-Pierre Siffroi
- Département de génétique et embryologie médicale, Centre de référence des déficiences intellectuelles de causes rares, AP-HP, Hôpital Armand Trousseau, Paris, France
| | - Marianne Till
- Service de Génétique, Hospices Civils de Lyon, Bron, France
| | - Renaud Touraine
- Service de Génétique Clinique, Chromosomique et Moléculaire, CHU Hôpital Nord, Saint-Etienne, France
| | | | - Jérome Toutain
- Service de Génétique Médicale, Hôpital Pellegrin, Université de Bordeaux, MRGM INSERM U1211, CHU Bordeaux, Bordeaux, France
| | - Stéphanie Valence
- GRC n°19, pathologies Congénitales du Cervelet-LeucoDystrophies, AP-HP, Hôpital Armand Trousseau, Sorbonne Université, Paris, France.,Service de Neurologie Pédiatrique, Hôpital Armand Trousseau, APHP, GHUEP, Paris, France
| | - Alain Verloes
- Département de Génétique, Hôpital Robert Debré, Paris, France
| | - Sandra Whalen
- Département de génétique et embryologie médicale, Centre de référence des déficiences intellectuelles de causes rares, AP-HP, Hôpital Armand Trousseau, Paris, France
| | - Patrick Edery
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
| | | | - Damien Sanlaville
- Service de Génétique, Hospices Civils de Lyon, Bron, France.,INSERM U1028, CNRS UMR5292, UCBL1, GENDEV Team, Neurosciences Research Center of Lyon, Bron, France
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24
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Miguet M, Faivre L, Amiel J, Nizon M, Touraine R, Prieur F, Pasquier L, Lefebvre M, Thevenon J, Dubourg C, Julia S, Sarret C, Remerand G, Francannet C, Laffargue F, Boespflug-Tanguy O, David A, Isidor B, Vigneron J, Leheup B, Lambert L, Philippe C, Béri-Dexheimer M, Cuisset JM, Andrieux J, Plessis G, Toutain A, Guibaud L, Cormier-Daire V, Rio M, Bonnefont JP, Echenne B, Journel H, Burglen L, Chantot-Bastaraud S, Bienvenu T, Baumann C, Perrin L, Drunat S, Jouk PS, Dieterich K, Devillard F, Lacombe D, Philip N, Sigaudy S, Moncla A, Missirian C, Badens C, Perreton N, Thauvin-Robinet C, AChro-Puce R, Pedespan JM, Rooryck C, Goizet C, Vincent-Delorme C, Duban-Bedu B, Bahi-Buisson N, Afenjar A, Maincent K, Héron D, Alessandri JL, Martin-Coignard D, Lesca G, Rossi M, Raynaud M, Callier P, Mosca-Boidron AL, Marle N, Coutton C, Satre V, Caignec CL, Malan V, Romana S, Keren B, Tabet AC, Kremer V, Scheidecker S, Vigouroux A, Lackmy-Port-Lis M, Sanlaville D, Till M, Carneiro M, Gilbert-Dussardier B, Willems M, Van Esch H, Portes VD, El Chehadeh S. Further delineation of the MECP2 duplication syndrome phenotype in 59 French male patients, with a particular focus on morphological and neurological features. J Med Genet 2018; 55:359-371. [PMID: 29618507 DOI: 10.1136/jmedgenet-2017-104956] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 09/06/2017] [Revised: 02/04/2018] [Accepted: 02/15/2018] [Indexed: 12/22/2022]
Abstract
The Xq28 duplication involving the MECP2 gene (MECP2 duplication) has been mainly described in male patients with severe developmental delay (DD) associated with spasticity, stereotypic movements and recurrent infections. Nevertheless, only a few series have been published. We aimed to better describe the phenotype of this condition, with a focus on morphological and neurological features. Through a national collaborative study, we report a large French series of 59 affected males with interstitial MECP2 duplication. Most of the patients (93%) shared similar facial features, which evolved with age (midface hypoplasia, narrow and prominent nasal bridge, thick lower lip, large prominent ears), thick hair, livedo of the limbs, tapered fingers, small feet and vasomotor troubles. Early hypotonia and global DD were constant, with 21% of patients unable to walk. In patients able to stand, lower limbs weakness and spasticity led to a singular standing habitus: flexion of the knees, broad-based stance with pseudo-ataxic gait. Scoliosis was frequent (53%), such as divergent strabismus (76%) and hypermetropia (54%), stereotypic movements (89%), without obvious social withdrawal and decreased pain sensitivity (78%). Most of the patients did not develop expressive language, 35% saying few words. Epilepsy was frequent (59%), with a mean onset around 7.4 years of age, and often (62%) drug-resistant. Other medical issues were frequent: constipation (78%), and recurrent infections (89%), mainly lung. We delineate the clinical phenotype of MECP2 duplication syndrome in a large series of 59 males. Pulmonary hypertension appeared as a cause of early death in these patients, advocating its screening early in life.
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Affiliation(s)
- Marguerite Miguet
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace (IGMA), Centre de Référence Maladies Rares "Anomalies du développement et syndromes malformatifs", Centre de Référence Maladies Rares "Des déficiences intellectuelles de causes rares", Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Laurence Faivre
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | - Jeanne Amiel
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Mathilde Nizon
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Renaud Touraine
- Service de Génétique Clinique, CHU de Saint-Etienne, Saint-Etienne, France
| | - Fabienne Prieur
- Service de Génétique Clinique, CHU de Saint-Etienne, Saint-Etienne, France
| | - Laurent Pasquier
- Service de Génétique Clinique, CLAD Ouest, CHU de Rennes, Rennes, France
| | - Mathilde Lefebvre
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | - Julien Thevenon
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | | | - Sophie Julia
- Service de Génétique Médicale, CHU de Toulouse, Toulouse, France
| | - Catherine Sarret
- Service de Neuropédiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Ganaëlle Remerand
- Service de Neuropédiatrie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Christine Francannet
- Service de Génétique Médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Fanny Laffargue
- Service de Génétique Médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Odile Boespflug-Tanguy
- Service de Neuropédiatrie et Maladies Métaboliques, Hôpital Robert Debré, APHP, Paris, France
| | - Albert David
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | - Bertrand Isidor
- Service de Génétique Médicale, CHU de Nantes, Nantes, France
| | | | - Bruno Leheup
- Service de Génétique Médicale, CHU de Nancy, Nancy, France
| | | | | | | | | | - Joris Andrieux
- Laboratoire de Génétique Médicale, Hôpital Jeanne de Flandre, CHRU de Lille, Lille, France
| | | | | | - Laurent Guibaud
- Service de Radiologie, Hôpital Femme Mère Enfant, Bron, France
| | | | - Marlene Rio
- Service de Génétique Clinique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Jean-Paul Bonnefont
- Laboratoire de Biologie Moléculaire, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Bernard Echenne
- Service de Neurologie pédiatrique, CHU de Montpellier, Montpellier, France
| | - Hubert Journel
- Service de Génétique, Centre Hospitalier de Vannes, Vannes, France
| | - Lydie Burglen
- Service de Génétique, Hôpital Armand Trousseau, APHP, Paris, France
| | | | - Thierry Bienvenu
- Laboratoire de Génétique Moléculaire, GH Cochin-Broca Hôtel Dieu, APHP, Paris, France
| | - Clarisse Baumann
- Service de Génétique Clinique, Hôpital Robert Debré, APHP, Paris, France
| | - Laurence Perrin
- Service de Génétique Clinique, Hôpital Robert Debré, APHP, Paris, France
| | - Séverine Drunat
- Laboratoire de Biologie Moléculaire, Hôpital Robert Debré, APHP, Paris, France
| | - Pierre-Simon Jouk
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Klaus Dieterich
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Françoise Devillard
- Département de Génétique et Procréation - UMR CNRS 5525 TIMC-IMAG - équipe DYCTIM, CHU Grenoble, Grenoble, France
| | - Didier Lacombe
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | - Nicole Philip
- Département de Génétique Médicale, Hôpital de la Timone, Marseille, France
| | - Sabine Sigaudy
- Département de Génétique Médicale, Hôpital de la Timone, Marseille, France
| | - Anne Moncla
- Laboratoire de Génétique Chromosomique, Hôpital de la Timone, Marseille, France
| | - Chantal Missirian
- Laboratoire de Génétique Chromosomique, Hôpital de la Timone, Marseille, France
| | - Catherine Badens
- Laboratoire de Biologie Moléculaire, Hôpital de la Timone, Marseille, France
| | | | - Christel Thauvin-Robinet
- FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
| | | | | | - Caroline Rooryck
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | - Cyril Goizet
- Université de Bordeaux, Laboratoire MRGM, INSERM U1211 and Service de Génétique Médicale, CHU de Bordeaux, Bordeaux, France
| | | | - Bénédicte Duban-Bedu
- Centre de Génétique Chromosomique, GH de l'Institut Catholique de Lille, Hôpital Saint-Vincent-de-Paul, Lille, France
| | - Nadia Bahi-Buisson
- Service de Neuropédiatrie, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Alexandra Afenjar
- Département de Génétique Médicale, Centre de Référence "Malformations et maladies congénitales du cervelet", APHP, Hôpital Armand Trousseau, APHP, Paris, France
| | - Kim Maincent
- Département de Génétique Médicale, Centre de Référence "Malformations et maladies congénitales du cervelet", APHP, Hôpital Armand Trousseau, APHP, Paris, France
| | - Delphine Héron
- Service de Génétique Clinique, Hôpital Pitié-Salpêtrière, APHP, Paris, France
| | | | | | - Gaëtan Lesca
- Service de génétique, Hospices Civils de Lyon, Lyon, France.,INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - Massimiliano Rossi
- Service de génétique, Hospices Civils de Lyon, Lyon, France.,INSERM U1028, CNRS UMR5292, Centre de Recherche en Neurosciences de Lyon, GENDEV Team, Université Claude Bernard Lyon 1, Lyon, France
| | - Martine Raynaud
- Laboratoire de Génétique Moléculaire, CHRU de Tours, Tours, France
| | | | | | - Nathalie Marle
- Laboratoire de Cytogénétique, CHU de Dijon, Dijon, France
| | - Charles Coutton
- Laboratoire de Cytogénétique, CHU de Grenoble, Grenoble, France
| | - Véronique Satre
- Laboratoire de Cytogénétique, CHU de Grenoble, Grenoble, France
| | - Cédric Le Caignec
- Laboratoire de Cytogénétique, CHU de Nantes, Nantes, France.,Sarcomes osseux et remodelage des tissus calcifiés, Université Bretagne Loire, INSERM, UMR1238, Nantes, France
| | - Valérie Malan
- Laboratoire de Cytogénétique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Serge Romana
- Laboratoire de Cytogénétique, Hôpital Necker Enfants Malades, APHP, Paris, France
| | - Boris Keren
- Laboratoire de Cytogénétique, Hôpital Pitié-Salpêtrière, APHP, Paris, France
| | - Anne-Claude Tabet
- Laboratoire de Cytogénétique, Hôpital Robert Debré, APHP, Paris, France
| | - Valérie Kremer
- Laboratoire de Cytogénétique, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Sophie Scheidecker
- Laboratoire de Cytogénétique, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | | | | | | | - Marianne Till
- Laboratoire de Cytogénétique, CHU de Lyon, Lyon, France
| | - Maryline Carneiro
- Service de Neuropédiatrie, CHU de Lyon, Hôpital Femme-Mère-Enfant, Lyon, France
| | | | | | - Hilde Van Esch
- Laboratory for Genetics of Cognition, Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Vincent Des Portes
- Centre de Référence Maladies Rares «Des déficiences intellectuelles de causes rares», HFME, Hospices Civils de Lyon and Université de Lyon, Lyon, France.,Institut des Sciences Cognitives, CNRS UMR 5304, Bron, France
| | - Salima El Chehadeh
- Service de génétique médicale, Institut de Génétique Médicale d'Alsace (IGMA), Centre de Référence Maladies Rares "Anomalies du développement et syndromes malformatifs", Centre de Référence Maladies Rares "Des déficiences intellectuelles de causes rares", Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Strasbourg, France.,FHU TRANSLAD, Centre de Référence Maladies Rares «Anomalies du développement et syndromes malformatifs», Centre de Génétique, CHU de Dijon, Dijon, France
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25
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Tabet AC, Rolland T, Ducloy M, Lévy J, Buratti J, Mathieu A, Haye D, Perrin L, Dupont C, Passemard S, Capri Y, Verloes A, Drunat S, Keren B, Mignot C, Marey I, Jacquette A, Whalen S, Pipiras E, Benzacken B, Chantot-Bastaraud S, Afenjar A, Héron D, Le Caignec C, Beneteau C, Pichon O, Isidor B, David A, El Khattabi L, Kemeny S, Gouas L, Vago P, Mosca-Boidron AL, Faivre L, Missirian C, Philip N, Sanlaville D, Edery P, Satre V, Coutton C, Devillard F, Dieterich K, Vuillaume ML, Rooryck C, Lacombe D, Pinson L, Gatinois V, Puechberty J, Chiesa J, Lespinasse J, Dubourg C, Quelin C, Fradin M, Journel H, Toutain A, Martin D, Benmansour A, Leblond CS, Toro R, Amsellem F, Delorme R, Bourgeron T. A framework to identify contributing genes in patients with Phelan-McDermid syndrome. NPJ Genom Med 2017; 2:32. [PMID: 29263841 PMCID: PMC5677962 DOI: 10.1038/s41525-017-0035-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/23/2017] [Accepted: 09/26/2017] [Indexed: 01/08/2023] Open
Abstract
Phelan-McDermid syndrome (PMS) is characterized by a variety of clinical symptoms with heterogeneous degrees of severity, including intellectual disability (ID), absent or delayed speech, and autism spectrum disorders (ASD). It results from a deletion of the distal part of chromosome 22q13 that in most cases includes the SHANK3 gene. SHANK3 is considered a major gene for PMS, but the factors that modulate the severity of the syndrome remain largely unknown. In this study, we investigated 85 patients with different 22q13 rearrangements (78 deletions and 7 duplications). We first explored the clinical features associated with PMS, and provide evidence for frequent corpus callosum abnormalities in 28% of 35 patients with brain imaging data. We then mapped several candidate genomic regions at the 22q13 region associated with high risk of clinical features, and suggest a second locus at 22q13 associated with absence of speech. Finally, in some cases, we identified additional clinically relevant copy-number variants (CNVs) at loci associated with ASD, such as 16p11.2 and 15q11q13, which could modulate the severity of the syndrome. We also report an inherited SHANK3 deletion transmitted to five affected daughters by a mother without ID nor ASD, suggesting that some individuals could compensate for such mutations. In summary, we shed light on the genotype-phenotype relationship of patients with PMS, a step towards the identification of compensatory mechanisms for a better prognosis and possibly treatments of patients with neurodevelopmental disorders.
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Affiliation(s)
- Anne-Claude Tabet
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Thomas Rolland
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Marie Ducloy
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Jonathan Lévy
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Julien Buratti
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Alexandre Mathieu
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Damien Haye
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Laurence Perrin
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Céline Dupont
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | | | - Yline Capri
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Alain Verloes
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Séverine Drunat
- Genetics Department, Robert Debré Hospital, APHP, Paris, France
| | - Boris Keren
- Cytogenetics Unit, Pitié Salpetrière Hospital, APHP, Paris, France
| | - Cyril Mignot
- Neurogenetics Unit, Pitié Salpetrière Hospital, APHP, Paris, France
| | - Isabelle Marey
- Clinical Genetics Unit, Pitié Salpetrière Hospital, APHP, Paris, France
| | - Aurélia Jacquette
- Clinical Genetics Unit, Pitié Salpetrière Hospital, APHP, Paris, France
| | - Sandra Whalen
- Clinical Genetics Unit, Pitié Salpetrière Hospital, APHP, Paris, France
| | - Eva Pipiras
- Cytogenetics Unit, Jean Verdier Hospital, APHP, Bondy, France
| | | | | | | | - Delphine Héron
- Clinical Genetics Unit, Trousseau Hospital, APHP, Paris, France
| | | | | | | | | | - Albert David
- Clinical Genetics Unit, Nantes Hospital, Nantes, France
| | | | | | | | - Philippe Vago
- Genetics Unit, CHU Estaing, Clermont-Ferrand, France
| | | | | | | | - Nicole Philip
- Genetics Unit, La Timone Hospital, Marseille, France
| | | | - Patrick Edery
- Clinical Genetics Unit, Lyon Civil Hospital, Lyon, France
| | | | | | | | | | | | | | | | - Lucile Pinson
- Genetics Unit, Montpellier Hospital, Montpellier, France
| | | | | | | | - James Lespinasse
- Cytogenetics Unit, Chambéry-Hôtel-Dieu Hospital, Chambéry, France
| | | | | | | | | | | | | | | | - Claire S. Leblond
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Roberto Toro
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
| | - Frédérique Amsellem
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Richard Delorme
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
- Department of Child and Adolescent Psychiatry, Robert Debré Hospital, APHP, Paris, France
| | - Thomas Bourgeron
- Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France
- CNRS UMR 3571 Genes, Synapses and Cognition, Institut Pasteur, Paris, France
- Sorbonne Paris Cité, Human Genetics and Cognitive Functions, Université Paris Diderot, Paris, France
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26
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Lévy J, Coussement A, Dupont C, Guimiot F, Baumann C, Viot G, Passemard S, Capri Y, Drunat S, Verloes A, Pipiras E, Benzacken B, Dupont JM, Tabet AC. Molecular and clinical delineation of 2p15p16.1 microdeletion syndrome. Am J Med Genet A 2017; 173:2081-2087. [PMID: 28573701 DOI: 10.1002/ajmg.a.38302] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 02/21/2017] [Accepted: 05/06/2017] [Indexed: 11/05/2022]
Abstract
Interstitial 2p15p16.1 microdeletion is a rare chromosomal syndrome previously reported in 33 patients. It is characterized by intellectual disability, developmental delay, autism spectrum disorders, microcephaly, short stature, dysmorphic features, and multiple congenital organ defects. It is defined as a contiguous gene syndrome and two critical regions have been proposed at 2p15 and 2p16.1 loci. Nevertheless, patients with deletion of both critical regions shared similar features of the phenotype and the correlation genotype-phenotype is still unclear. We review all published cases and describe three additional patients, to define the phenotype-genotype correlation more precisely. We reported on two patients including the first prenatal case described so far, carrying a 2p15 deletion affecting two genes: XPO1 and part of USP34. Both patients shared similar features including facial dysmorphism and cerebral abnormalities. We considered the genes involved in the deleted segment to further understand the abnormal phenotype. The third case we described here was a 4-year-old boy with a heterozygous de novo 427 kb deletion encompassing BCL11A and PAPOLG at 2p16.1. He displayed speech delay, autistic traits, and motor stereotypies associated with brain structure abnormalities. We discuss the contribution of the genes included in the deletion to the abnormal phenotype. Our three new patients compared to previous cases, highlighted that despite two critical regions, both distal deletion at 2p16.1 and proximal deletion at 2p15 are associated with phenotypes that are very close to each other. Finally, we also discuss the genetic counseling of this microdeletion syndrome particularly in the course of prenatal diagnosis.
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Affiliation(s)
- Jonathan Lévy
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
- INSERM UMR1141, Paris Diderot University, AP-HP, Robert-Debré Hospital, Paris, France
| | - Aurélie Coussement
- Cytogenetics Laboratory, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Céline Dupont
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Fabien Guimiot
- INSERM UMR1141, Paris Diderot University, AP-HP, Robert-Debré Hospital, Paris, France
- Department of Developmental Biology, APHP Robert-Debré hospital, Paris Diderot University, Sorbonne Paris Cité, Paris, France
| | - Clarisse Baumann
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Géraldine Viot
- Cytogenetics Laboratory, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Sandrine Passemard
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
- INSERM UMR1141, Paris Diderot University, AP-HP, Robert-Debré Hospital, Paris, France
| | - Yline Capri
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Séverine Drunat
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Alain Verloes
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
| | - Eva Pipiras
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
- INSERM UMR1141, Paris Diderot University, AP-HP, Robert-Debré Hospital, Paris, France
- University Hospital Jean-Verdier, Department of Cytogenetic, Embryology and Histology, Bondy, France
| | - Brigitte Benzacken
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
- INSERM UMR1141, Paris Diderot University, AP-HP, Robert-Debré Hospital, Paris, France
- University Hospital Jean-Verdier, Department of Cytogenetic, Embryology and Histology, Bondy, France
| | - Jean-Michel Dupont
- Cytogenetics Laboratory, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Anne-Claude Tabet
- Genetics Department, AP-HP, Robert-Debré University Hospital, Paris, France
- Neuroscience Department, Génétique Humaine et Fonction Cognitive Unit, Pasteur Institute, Paris, France
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Ducloy M, Tabet AC, Bouvard M, Bourgeron T, Delorme R. [Autism spectrum disorders: heterogeneous genetic etiologies]. Rev Prat 2015; 65:1179-1182. [PMID: 30512507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Autism spectrum disorders: heterogeneous genetic etiologies. Autism Spectrum Disorders (ASD) are neurodevelopmental diseases affecting around 1% of the general population. Symptoms appear early in the development, usually before 3 years of life. Clinical features are extremely heterogeneous as genetic etiologies that underlie ASD. Genetic findings are present in 25% of ASD patients especially in specific cellular pathways as neurodevelopment or synapse architecture. ASD appears to be the combination of several de novo or/and inherited deleterious genetic variants. Here we propose to discuss genetic findings in these disorders and see how genetic research is able to give new treatment for ASD.
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Affiliation(s)
- Marie Ducloy
- Service de psychiatrie de l'enfant et de l'adolescent, CHU Charles-Perrens, Bordeaux, France
- Service de psychiatrie de l'enfant et de l'adolescent
- Laboratoire de génétique humaine et fonctions cognitives
| | - Anne-Claude Tabet
- Unité fonctionnelle de cytogénétique, service de génétique humaine, CHU Robert-Debré, Paris, France
| | - Manuel Bouvard
- Service de psychiatrie de l'enfant et de l'adolescent, CHU Charles-Perrens, Bordeaux, France
| | - Thomas Bourgeron
- Laboratoire de génétique humaine et fonctions cognitives
- Département de neurosciences, Institut Pasteur, Paris, France
| | - Richard Delorme
- Service de psychiatrie de l'enfant et de l'adolescent
- Laboratoire de génétique humaine et fonctions cognitives
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28
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Masliah-Planchon J, Dupont C, Vartzelis G, Trimouille A, Eymard-Pierre E, Gay-Bellile M, Renaldo F, Dorboz I, Pagan C, Quentin S, Elmaleh M, Kotsogianni C, Konstantelou E, Drunat S, Tabet AC, Boespflug-Tanguy O. Insertion of an extra copy of Xq22.2 into 1p36 results in functional duplication of the PLP1 gene in a girl with classical Pelizaeus-Merzbacher disease. BMC Med Genet 2015; 16:77. [PMID: 26329556 PMCID: PMC4557901 DOI: 10.1186/s12881-015-0226-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 08/25/2015] [Indexed: 08/30/2023]
Abstract
Background Pelizaeus-Merzbacher disease (PMD) is an X-linked dysmyelinating disorder characterized by nystagmus, hypotonia, ataxia, progressive spasticity, and cognitive decline. PMD classically results from a duplication of a genomic segment encompassing the entire PLP1 gene. Since the PLP1 gene is located in Xq22, PMD affects mostly boys. Methods and results Here we report the case of a girl with typical PMD. Copy number analysis of the PLP1 locus revealed a duplication of the entire gene and FISH analysis showed that the extra copy of the PLP1 gene was actually inserted in chromosome 1p36. This insertion of an additional copy of PLP1 in an autosome led to a functional duplication irrespective of the X-inactivation pattern. Subsequent overexpression of PLP1 was the cause of the PMD phenotype observed in this girl. Further sequencing of the breakpoint junction revealed a microhomology and thus suggested a replication based mechanism (such as FoSTeS or MMBIR). Conclusion This case emphasizes the susceptibility of the PLP1 locus to complex rearrangement likely driven by the Xq22 local genomic architecture. In addition, careful consideration should be given to girls with classical PMD clinical features since they usually experience complex PLP1 genomic alteration with a distinct risk of inheritance.
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Affiliation(s)
- Julien Masliah-Planchon
- UF de Génétique moléculaire, Hôpital Robert Debré, AP-HP, Paris, France. .,Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France. .,New adresse: Unité de Génétique Somatique, Institut Curie, Paris, France.
| | - Céline Dupont
- UF de Cytogénétique, Hôpital Robert Debré, AP-HP, Paris, France.
| | - George Vartzelis
- Paediatric Neurology, P&A Kyriakou Paed. Hospital, Athens Medical School, Athens, Greece.
| | - Aurélien Trimouille
- UF de Génétique moléculaire, Hôpital Robert Debré, AP-HP, Paris, France. .,Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France.
| | - Eléonore Eymard-Pierre
- Cytogénétique Médicale, Univ Clermont1, UFR Médecine, CHU Estaing, Clermont-Ferrand, France. .,ERTICa, EA 4677, Univ Clermont1, UFR Médecine, Clermont-Ferrand, France.
| | - Mathilde Gay-Bellile
- Cytogénétique Médicale, Univ Clermont1, UFR Médecine, CHU Estaing, Clermont-Ferrand, France. .,ERTICa, EA 4677, Univ Clermont1, UFR Médecine, Clermont-Ferrand, France.
| | - Florence Renaldo
- Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France. .,Neurologie et maladie métabolique, Hôpital Robert Debré, AP-HP, Paris, France.
| | - Imen Dorboz
- Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France.
| | - Cécile Pagan
- UF de Génétique moléculaire, Hôpital Robert Debré, AP-HP, Paris, France.
| | | | - Monique Elmaleh
- Imagerie pédiatrique, Hôpital Robert Debré, AP-HP, Paris, France.
| | - Christina Kotsogianni
- Paediatric Neurology, P&A Kyriakou Paed. Hospital, Athens Medical School, Athens, Greece.
| | - Elissavet Konstantelou
- Paediatric Neurology, P&A Kyriakou Paed. Hospital, Athens Medical School, Athens, Greece.
| | - Séverine Drunat
- UF de Génétique moléculaire, Hôpital Robert Debré, AP-HP, Paris, France. .,Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France.
| | | | - Odile Boespflug-Tanguy
- Inserm U1141, Université Paris Diderot, Sorbonne Paris Cité, Hôpital Robert Debré, Paris, France. .,Neurologie et maladie métabolique, Hôpital Robert Debré, AP-HP, Paris, France.
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El Khattabi L, Jaillard S, Andrieux J, Pasquier L, Perrin L, Capri Y, Benmansour A, Toutain A, Marcorelles P, Vincent-Delorme C, Journel H, Henry C, De Barace C, Devisme L, Dubourg C, Demurger F, Lucas J, Belaud-Rotureau MA, Amiel J, Malan V, De Blois MC, De Pontual L, Lebbar A, Le Dû N, Germain DP, Pinard JM, Pipiras E, Tabet AC, Aboura A, Verloes A. Clinical and molecular delineation of Tetrasomy 9p syndrome: report of 12 new cases and literature review. Am J Med Genet A 2015; 167:1252-61. [PMID: 25847481 DOI: 10.1002/ajmg.a.36932] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 04/22/2014] [Accepted: 12/03/2014] [Indexed: 11/12/2022]
Abstract
Tetrasomy 9p is a generic term describing the presence of a supernumerary chromosome incorporating two copies of the 9p arm. Two varieties exist: isodicentric chromosome 9p (i(9p)), where the two 9p arms are linked by a single centromeric region, and pseudodicentric 9p (idic(9p)), where one active and one inactive centromere are linked together by a proximal segment of 9q that may incorporate euchromatic material. In living patients, i(9p) and idic(9p) are usually present in a mosaic state. Fifty-four cases, including fetuses, have been reported, of which only two have been molecularly characterized using array-CGH. Tetrasomy 9p leads to a variable phenotype ranging from multiple congenital anomalies with severe intellectual disability and growth delay to subnormal cognitive and physical developments. Hypertelorism, abnormal ears, microretrognathia and bulbous nose are the most common dysmorphic traits. Microcephaly, growth retardation, joint dislocation, scoliosis, cardiac and renal anomalies were reported in several cases. Those physical anomalies are often, but not universally, accompanied by intellectual disability. The most recurrent breakpoints, defined by conventional cytogenetics, are 9p10, 9q12 and 9q13. We report on 12 new patients with tetrasomy 9p (3 i(9p), 8 idic(9p) and one structurally uncharacterized), including the first case of parental germline mosaicism. All rearrangements have been characterized by DNA microarray. Based on our results and a review of the literature, we further delineate the prenatal and postnatal clinical spectrum of this imbalance. Our results show poor genotype-phenotype correlations and underline the need of precise molecular characterization of the supernumerary marker.
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Affiliation(s)
- Laïla El Khattabi
- Cochin Institute, INSERM U1016, Paris, France.,Cytogenetics Department, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Sylvie Jaillard
- Cytogenetics and Cell Biology Department, Rennes University Hospital, Rennes, France
| | - Joris Andrieux
- Medical Genetics Department, Lille Hospital, Lille, France
| | - Laurent Pasquier
- Medical Genetics Department, Rennes University Hospital, Rennes, France
| | - Laurence Perrin
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Yline Capri
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | | | - Annick Toutain
- Department of Genetics, Tours University Hospital, Tours, France
| | | | | | | | - Catherine Henry
- Cytogenetics and Cell Biology Department, Rennes University Hospital, Rennes, France
| | - Claire De Barace
- Department of Pediatrics, Saint-Brieuc Hospital, Saint-Brieuc, France
| | - Louise Devisme
- Department of Anatomy and Cell Pathology, CHRU Lille, France
| | - Christèle Dubourg
- Molecular Genetics Department, Rennes University Hospital, Rennes, France.,UMR 6290, IGDR, Medical School, Rennes, France
| | - Florence Demurger
- Medical Genetics Department, Rennes University Hospital, Rennes, France
| | - Josette Lucas
- Cytogenetics and Cell Biology Department, Rennes University Hospital, Rennes, France
| | - Marc-Antoine Belaud-Rotureau
- Cytogenetics and Cell Biology Department, Rennes University Hospital, Rennes, France.,UMR 6290, IGDR, Medical School, Rennes, France
| | - Jeanne Amiel
- Department of Genetics, APHP, Necker-Enfants Malades University Hospital, Paris, France
| | - Valérie Malan
- Laboratory of Cytogenetics, APHP, Necker-Enfants Malades Hospital, Paris Descartes University, Paris, France
| | - Marie-Christine De Blois
- Laboratory of Cytogenetics, APHP, Necker-Enfants Malades Hospital, Paris Descartes University, Paris, France
| | - Loïc De Pontual
- Department of Pediatrics, Jean-Verdier Hospital, APHP, Paris 13 University, Bondy, France
| | - Aziza Lebbar
- Cytogenetics Department, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Nathalie Le Dû
- Cytogenetics Department, APHP, Cochin Hospital, Paris Descartes University, Paris, France
| | - Dominique P Germain
- Department of Genetics, Raymond Poincaré University Hospital, Garches, France
| | - Jean-Marc Pinard
- Department of Neuropediatrics, Raymond Poincaré University Hospital, Garches, France
| | - Eva Pipiras
- Cytogenetics, APHP, Jean-Verdier University Hospital, Bondy; Paris 13, Sorbonne Paris Cité, UFR SMBH, Bobigny, France; Inserm, U676, Paris, France
| | - Anne-Claude Tabet
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Azzedine Aboura
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France
| | - Alain Verloes
- Department of Genetics, APHP-Robert Debré University Hospital, Paris, France.,INSERM U676, and Paris VII-Denis Diderot Medical School, Paris, France
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30
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Tabet AC, Verloes A, Pilorge M, Delaby E, Delorme R, Nygren G, Devillard F, Gérard M, Passemard S, Héron D, Siffroi JP, Jacquette A, Delahaye A, Perrin L, Dupont C, Aboura A, Bitoun P, Coleman M, Leboyer M, Gillberg C, Benzacken B, Betancur C. Complex nature of apparently balanced chromosomal rearrangements in patients with autism spectrum disorder. Mol Autism 2015; 6:19. [PMID: 25844147 PMCID: PMC4384291 DOI: 10.1186/s13229-015-0015-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 11/10/2014] [Accepted: 03/06/2015] [Indexed: 12/21/2022] Open
Abstract
Background Apparently balanced chromosomal rearrangements can be associated with an abnormal phenotype, including intellectual disability and autism spectrum disorder (ASD). Genome-wide microarrays reveal cryptic genomic imbalances, related or not to the breakpoints, in 25% to 50% of patients with an abnormal phenotype carrying a microscopically balanced chromosomal rearrangement. Here we performed microarray analysis of 18 patients with ASD carrying balanced chromosomal abnormalities to identify submicroscopic imbalances implicated in abnormal neurodevelopment. Methods Eighteen patients with ASD carrying apparently balanced chromosomal abnormalities were screened using single nucleotide polymorphism (SNP) arrays. Nine rearrangements were de novo, seven inherited, and two of unknown inheritance. Genomic imbalances were confirmed by fluorescence in situ hybridization and quantitative PCR. Results We detected clinically significant de novo copy number variants in four patients (22%), including three with de novo rearrangements and one with an inherited abnormality. The sizes ranged from 3.3 to 4.9 Mb; three were related to the breakpoint regions and one occurred elsewhere. We report a patient with a duplication of the Wolf-Hirschhorn syndrome critical region, contributing to the delineation of this rare genomic disorder. The patient has a chromosome 4p inverted duplication deletion, with a 0.5 Mb deletion of terminal 4p and a 4.2 Mb duplication of 4p16.2p16.3. The other cases included an apparently balanced de novo translocation t(5;18)(q12;p11.2) with a 4.2 Mb deletion at the 18p breakpoint, a subject with de novo pericentric inversion inv(11)(p14q23.2) in whom the array revealed a de novo 4.9 Mb deletion in 7q21.3q22.1, and a patient with a maternal inv(2)(q14.2q37.3) with a de novo 3.3 Mb terminal 2q deletion and a 4.2 Mb duplication at the proximal breakpoint. In addition, we identified a rare de novo deletion of unknown significance on a chromosome unrelated to the initial rearrangement, disrupting a single gene, RFX3. Conclusions These findings underscore the utility of SNP arrays for investigating apparently balanced chromosomal abnormalities in subjects with ASD or related neurodevelopmental disorders in both clinical and research settings.
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Affiliation(s)
- Anne-Claude Tabet
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; INSERM, UMR 1130, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; CNRS, UMR 8246, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; Sorbonne Universités, UPMC Univ Paris 6, Institut de Biologie Paris-Seine, 9 quai Saint Bernard, 75005 Paris, France
| | - Alain Verloes
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; INSERM, UMR 1141, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Marion Pilorge
- INSERM, UMR 1130, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; CNRS, UMR 8246, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; Sorbonne Universités, UPMC Univ Paris 6, Institut de Biologie Paris-Seine, 9 quai Saint Bernard, 75005 Paris, France
| | - Elsa Delaby
- INSERM, UMR 1130, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; CNRS, UMR 8246, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; Sorbonne Universités, UPMC Univ Paris 6, Institut de Biologie Paris-Seine, 9 quai Saint Bernard, 75005 Paris, France
| | - Richard Delorme
- Department of Child and Adolescent Psychiatry, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; Fondation Fondamental, 40 rue de Mesly, 94000 Créteil, France
| | - Gudrun Nygren
- Gillberg Neuropsychiatry Centre, University of Gothenburg, Kungsgatan 12, 41119 Göteborg, Sweden
| | - Françoise Devillard
- Département de Génétique et Procréation, CHU de Grenoble, Hôpital Couple-Enfant, avenue du Maquis du Grésivaudan, 38043 Grenoble, France
| | - Marion Gérard
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Sandrine Passemard
- INSERM, UMR 1141, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; Neurology Unit, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Delphine Héron
- Medical Genetics Unit, AP-HP, Pitié-Salpêtrière University Hospital, 47 boulevard de l'Hôpital, 75013 Paris, France
| | - Jean-Pierre Siffroi
- Service de Génétique et d'Embryologie Médicales, AP-HP, Trousseau Hospital, 26 avenue du Docteur Arnold Netter, 75012 Paris, France
| | - Aurelia Jacquette
- Medical Genetics Unit, AP-HP, Pitié-Salpêtrière University Hospital, 47 boulevard de l'Hôpital, 75013 Paris, France
| | - Andrée Delahaye
- INSERM, UMR 1141, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; Cytogenetics Unit, AP-HP, Jean Verdier Hospital, allée du 14 Juillet, 93140 Bondy, France ; Paris 13 University, Sorbonne Paris Cité, UFR SMBH, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Laurence Perrin
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Céline Dupont
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Azzedine Aboura
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France
| | - Pierre Bitoun
- Medical Genetics Unit, AP-HP, Jean Verdier Hospital, allée du 14 Juillet, 93140 Bondy, France
| | - Mary Coleman
- Foundation for Autism Research, 3081 Quail Hollow, Sarasota, FL 34235 USA
| | - Marion Leboyer
- Fondation Fondamental, 40 rue de Mesly, 94000 Créteil, France ; Department of Psychiatry, AP-HP, Henri Mondor-Albert Chenevier Hospital, 40 rue de Mesly, 94000 Créteil, France ; INSERM U955, Institut Mondor de Recherche Biomédicale, Psychiatric Genetics, 8 rue du Général Sarrail, 94000 Créteil, France ; Faculty of Medicine, University Paris-Est Créteil, 8 rue du Général Sarrail, 94000 Créteil, France
| | - Christopher Gillberg
- Gillberg Neuropsychiatry Centre, University of Gothenburg, Kungsgatan 12, 41119 Göteborg, Sweden
| | - Brigitte Benzacken
- Department of Genetics, AP-HP, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; INSERM, UMR 1141, Robert Debré University Hospital, 48 boulevard Sérurier, 75019 Paris, France ; Cytogenetics Unit, AP-HP, Jean Verdier Hospital, allée du 14 Juillet, 93140 Bondy, France ; Paris 13 University, Sorbonne Paris Cité, UFR SMBH, 74 rue Marcel Cachin, 93000 Bobigny, France
| | - Catalina Betancur
- INSERM, UMR 1130, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; CNRS, UMR 8246, Neuroscience Paris Seine, 9 quai Saint Bernard, 75005 Paris, France ; Sorbonne Universités, UPMC Univ Paris 6, Institut de Biologie Paris-Seine, 9 quai Saint Bernard, 75005 Paris, France
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Dupont C, Bucourt M, Guimiot F, Kraoua L, Smiljkovski D, Le Tessier D, Lebugle C, Gerard B, Spaggiari E, Bourdoncle P, Tabet AC, Benzacken B, Dupont JM. 3D-FISH analysis reveals chromatid cohesion defect during interphase in Roberts syndrome. Mol Cytogenet 2014; 7:59. [PMID: 25320640 PMCID: PMC4197286 DOI: 10.1186/s13039-014-0059-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 08/21/2014] [Indexed: 01/12/2023] Open
Abstract
Background Roberts syndrome (RBS) is a rare autosomal recessive disorder mainly characterized by growth retardation, limb defects and craniofacial anomalies. Characteristic cytogenetic findings are “railroad track” appearance of chromatids and premature centromere separation in metaphase spreads. Mutations in the ESCO2 (establishment of cohesion 1 homolog 2) gene located in 8p21.1 have been found in several families. ESCO2, a member of the cohesion establishing complex, has a role in the effective cohesion between sister chromatids. In order to analyze sister chromatids topography during interphase, we performed 3D-FISH using pericentromeric heterochromatin probes of chromosomes 1, 4, 9 and 16, on preserved nuclei from a fetus with RBS carrying compound heterozygous null mutations in the ESCO2 gene. Results Along with the first observation of an abnormal separation between sister chromatids in heterochromatic regions, we observed a statistically significant change in the intranuclear localization of pericentromeric heterochromatin of chromosome 1 in cells of the fetus compared to normal cells, demonstrating for the first time a modification in the spatial arrangement of chromosome domains during interphase. Conclusion We hypothesize that the disorganization of nuclear architecture may result in multiple gene deregulations, either through disruption of DNA cis interaction –such as modification of chromatin loop formation and gene insulation - mediated by cohesin complex, or by relocation of chromosome territories. These changes may modify interactions between the chromatin and the proteins associated with the inner nuclear membrane or the pore complexes. This model offers a link between the molecular defect in cohesion and the complex phenotypic anomalies observed in RBS. Electronic supplementary material The online version of this article (doi:10.1186/s13039-014-0059-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Celine Dupont
- Unité fonctionnelle de Cytogénétique-Département de Génétique- APHP, Hôpital Robert Debré, 48 Bd Sérurier, 75935 Paris, France
| | - Martine Bucourt
- Laboratoire de Fœtopathologie- APHP, Hôpital Jean Verdier, Bondy, France
| | - Fabien Guimiot
- Service de Biologie du Développement- APHP, Hôpital Robert Debré, Paris, France ; Université Paris Diderot Sorbonne Paris Cité, UMR 1141, F-75019 Paris, France
| | - Lilia Kraoua
- Unité fonctionnelle de Génétique moléculaire - Département de Génétique- APHP, Hôpital Robert Debré, Paris, France
| | - Daniel Smiljkovski
- Génomique, Epigénétique et Physiopathologie de la Reproduction, U1016 INSERM-UMR 8104 CNRS (Institut Cochin), Université Paris Descartes, Faculté de Médecine, Paris, France ; Laboratoire de Cytogénétique- APHP, Hôpitaux Universitaires Paris Centre, Paris, France
| | - Dominique Le Tessier
- Laboratoire de Cytogénétique- APHP, Hôpitaux Universitaires Paris Centre, Paris, France
| | - Camille Lebugle
- Institut Cochin, Plateforme d'imagerie cellulaire, Paris, France
| | - Benedicte Gerard
- Unité fonctionnelle de Génétique moléculaire - Département de Génétique- APHP, Hôpital Robert Debré, Paris, France
| | - Emmanuel Spaggiari
- Service de Biologie du Développement- APHP, Hôpital Robert Debré, Paris, France
| | | | - Anne-Claude Tabet
- Unité fonctionnelle de Cytogénétique-Département de Génétique- APHP, Hôpital Robert Debré, 48 Bd Sérurier, 75935 Paris, France
| | - Brigitte Benzacken
- Unité fonctionnelle de Cytogénétique-Département de Génétique- APHP, Hôpital Robert Debré, 48 Bd Sérurier, 75935 Paris, France ; Service d'Histologie, Embryologie et Cytogénétique, Biologie de la Reproduction- APHP, Hôpital Jean Verdier, Bondy, France; UFR-SMBH, Paris, XIII France
| | - Jean-Michel Dupont
- Génomique, Epigénétique et Physiopathologie de la Reproduction, U1016 INSERM-UMR 8104 CNRS (Institut Cochin), Université Paris Descartes, Faculté de Médecine, Paris, France ; Laboratoire de Cytogénétique- APHP, Hôpitaux Universitaires Paris Centre, Paris, France
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Dupont C, Grati FR, Choy KW, Jaillard S, Toutain J, Maurin ML, Martínez-Conejero JA, Beneteau C, Coussement A, Molina-Gomes D, Horelli-Kuitunen N, Aboura A, Tabet AC, Besseau-Ayasse J, Bessieres-Grattagliano B, Simoni G, Ayala G, Benzacken B, Vialard F. Prenatal diagnosis of 24 cases of microduplication 22q11.2: an investigation of phenotype-genotype correlations. Prenat Diagn 2014; 35:35-43. [PMID: 25118001 DOI: 10.1002/pd.4478] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/29/2014] [Accepted: 08/06/2014] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Microduplication 22q11.2 is primarily characterized by a highly variable clinical phenotype, which ranges from apparently normal or slightly dysmorphic features (in the presence or absence of learning disorders) to severe malformations with profound mental retardation. Hence, genetic counseling is particularly challenging when microduplication 22q11.2 is identified in a prenatal diagnosis. Here, we report on 24 prenatal cases of microduplication 22q11.2. METHODS Seventeen of the cases were also reanalyzed by microarray analysis, in order to determine copy number variations (CNVs, which are thought to influence expressivity). We also searched for possible correlations between fetal phenotypes, indications for invasive prenatal diagnosis, inheritance, and pregnancy outcomes. RESULTS Of the 24 cases, 15 were inherited, six occurred de novo, and three were of unknown origin. Termination of pregnancy occurred in seven cases and was mainly decided on the basis of ultrasound findings. Moreover, additional CNVs were found in some patients and we try to make a genotype-phenotype correlation. CONCLUSION We discuss the complexity of genetic counseling for microduplication 22q11.2 and comment on possible explanations for the clinical heterogeneity of this syndrome. In particular, we assessed the co-existence of additional CNVs and their contribution to phenotypic variations in chromosome 22q11.2 microduplication syndrome.
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Affiliation(s)
- Céline Dupont
- Unité de Cytogénétique, Département de Génétique, Hôpital Robert Debré-AP-HP, CHU Paris, Paris, France
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Tabet AC, Leroy C, Dupont C, Serrano E, Hernandez K, Gallard J, Pouvreau N, Gadisseux JF, Benzacken B, Verloes A. De novo deletion ofTBL1XR1in a child with non-specific developmental delay supports its implication in intellectual disability. Am J Med Genet A 2014; 164A:2335-7. [DOI: 10.1002/ajmg.a.36619] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 04/17/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Anne-Claude Tabet
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Camille Leroy
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Céline Dupont
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Emilie Serrano
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Karen Hernandez
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Jennifer Gallard
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Nathalie Pouvreau
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | | | - Brigitte Benzacken
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
| | - Alain Verloes
- Department of Genetics; APHP-Robert DEBRE University Hospital, Paris VII-Denis Diderot Medical School and INSERM UMR 1141 “PROTECT”; Paris France
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Dupont C, Baumann C, Le Du N, Schaefer E, Guimiot F, Boutaud L, Capri Y, Spaggiari E, Aboura A, Benzacken B, Tabet AC. COL2A1 gene disruption by a balanced translocation t(12;15)(q13;q22.2) in familial Stickler syndrome. Am J Med Genet A 2013; 161A:2663-5. [PMID: 23918474 DOI: 10.1002/ajmg.a.36081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 05/05/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Céline Dupont
- AP-HP, Department of Genetic-Cytogenetic Unit, Robert Debre Hospital, Paris, France
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Marle N, Martinet D, Aboura A, Joly-Helas G, Andrieux J, Flori E, Puechberty J, Vialard F, Sanlaville D, Fert Ferrer S, Bourrouillou G, Tabet AC, Quilichini B, Simon-Bouy B, Bazin A, Becker M, Stora H, Amblard S, Doco-Fenzy M, Molina Gomes D, Girard-Lemaire F, Cordier MP, Satre V, Schneider A, Lemeur N, Chambon P, Jacquemont S, Fellmann F, Vigouroux-Castera A, Molignier R, Delaye A, Pipiras E, Liquier A, Rousseau T, Mosca AL, Kremer V, Payet M, Rangon C, Mugneret F, Aho S, Faivre L, Callier P. Molecular characterization of 39 de novo sSMC: contribution to prognosis and genetic counselling, a prospective study. Clin Genet 2013; 85:233-44. [PMID: 23489061 DOI: 10.1111/cge.12138] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [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: 11/27/2012] [Revised: 03/05/2012] [Accepted: 03/05/2012] [Indexed: 11/27/2022]
Abstract
Small supernumerary marker chromosomes (sSMCs) are structurally abnormal chromosomes that cannot be characterized by karyotype. In many prenatal cases of de novo sSMC, the outcome of pregnancy is difficult to predict because the euchromatin content is unclear. This study aimed to determine the presence or absence of euchromatin material of 39 de novo prenatally ascertained sSMC by array-comparative genomic hybridization (array-CGH) or single nucleotide polymorphism (SNP) array. Cases were prospectively ascertained from the study of 65,000 prenatal samples [0.060%; 95% confidence interval (CI), 0.042-0.082]. Array-CGH showed that 22 markers were derived from non-acrocentric markers (56.4%) and 7 from acrocentic markers (18%). The 10 additional cases remained unidentified (25.6%), but 7 of 10 could be further identified using fluorescence in situ hybridization; 69% of de novo sSMC contained euchromatin material, 95.4% of which for non-acrocentric markers. Some sSMC containing euchromatin had a normal phenotype (31% for non-acrocentric and 75% for acrocentric markers). Statistical differences between normal and abnormal phenotypes were shown for the size of the euchromatin material (more or less than 1 Mb, p = 0.0006) and number of genes (more or less than 10, p = 0.0009). This study is the largest to date and shows the utility of array-CGH or SNP array in the detection and characterization of de novo sSMC in a prenatal context.
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Affiliation(s)
- N Marle
- Département de Génétique, Hôpital Le Bocage, Université de Bourgogne, Dijon, France
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Devernay M, Bolca D, Kerdjana L, Aboura A, Gérard B, Tabet AC, Benzacken B, Ecosse E, Coste J, Carel JC. Parental origin of the X-chromosome does not influence growth hormone treatment effect in Turner syndrome. J Clin Endocrinol Metab 2012; 97:E1241-8. [PMID: 22593588 DOI: 10.1210/jc.2011-3488] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [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: 02/12/2023]
Abstract
CONTEXT The parental origin of the intact X-chromosome has been reported to affect phenotype and response to GH treatment in Turner syndrome (TS). OBJECTIVE Our objective was to evaluate the influence of the parental origin of the X-chromosome on body growth and GH treatment effect in TS. DESIGN AND SETTING We conducted a population-based cohort study of TS patients previously treated with GH. PARTICIPANTS Participants included patients with a nonmosaic 45,X karyotype; 556 women were identified as eligible, 233 (49%) of whom participated, together with their mothers. Data were analyzed for 180 of these patients. MAIN OUTCOME MEASURES We performed fluorescence in situ hybridization analysis to exclude mosaicism and microsatellite analysis of nine polymorphic markers in DNA from the patients and their mothers. The influence on growth and effect of GH were analyzed by univariate and multivariate methods. RESULTS The X-chromosome was of paternal origin (X(pat)) in 52 (29%) of 180 and of maternal origin (X(mat)) in 128 (71%) of 180 patients. Height gain from the start of GH treatment to adult height was similar in X(mat) and X(pat) patients (+2.1 ± 0.9 vs. +2.2 ± 0.8 TS sd score, P = 0.45). The lack of influence of parental origin of the X-chromosome was confirmed in multivariate analysis. Parental origin of the X-chromosome also had no effect on the other growth characteristics studied, including growth velocity during the first year on GH treatment. Patient height was correlated with the heights of both parents and was not influenced by the parental origin of the X-chromosome. CONCLUSION In this, the largest such study carried out to date, the parental origin of the X-chromosome did not alter the effect of GH treatment or affect any other features of growth in TS.
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Affiliation(s)
- Marie Devernay
- Univ Paris Diderot, Sorbonne Paris Cité, F-75019, Paris, France
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Tabet AC, Pilorge M, Delorme R, Amsellem F, Pinard JM, Leboyer M, Verloes A, Benzacken B, Betancur C. Erratum: Autism multiplex family with 16p11.2p12.2 microduplication syndrome in monozygotic twins and distal 16p11.2 deletion in their brother. Eur J Hum Genet 2012. [DOI: 10.1038/ejhg.2012.32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Tordjman S, Anderson GM, Botbol M, Toutain A, Sarda P, Carlier M, Saugier-Veber P, Baumann C, Cohen D, Lagneaux C, Tabet AC, Verloes A. Autistic disorder in patients with Williams-Beuren syndrome: a reconsideration of the Williams-Beuren syndrome phenotype. PLoS One 2012; 7:e30778. [PMID: 22412832 PMCID: PMC3295800 DOI: 10.1371/journal.pone.0030778] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [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: 05/20/2011] [Accepted: 12/28/2011] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Williams-Beuren syndrome (WBS), a rare developmental disorder caused by deletion of contiguous genes at 7q11.23, has been characterized by strengths in socialization (overfriendliness) and communication (excessive talkativeness). WBS has been often considered as the polar opposite behavioral phenotype to autism. Our objective was to better understand the range of phenotypic expression in WBS and the relationship between WBS and autistic disorder. METHODOLOGY The study was conducted on 9 French individuals aged from 4 to 37 years old with autistic disorder associated with WBS. Behavioral assessments were performed using Autism Diagnostic Interview-Revised (ADI-R) and Autism Diagnostic Observation Schedule (ADOS) scales. Molecular characterization of the WBS critical region was performed by FISH. FINDINGS FISH analysis indicated that all 9 patients displayed the common WBS deletion. All 9 patients met ADI-R and ADOS diagnostic criteria for autism, displaying stereotypies and severe impairments in social interaction and communication (including the absence of expressive language). Additionally, patients showed improvement in social communication over time. CONCLUSIONS The results indicate that comorbid autism and WBS is more frequent than expected and suggest that the common WBS deletion can result in a continuum of social communication impairment, ranging from excessive talkativeness and overfriendliness to absence of verbal language and poor social relationships. Appreciation of the possible co-occurrence of WBS and autism challenges the common view that WBS represents the opposite behavioral phenotype of autism, and might lead to improved recognition of WBS in individuals diagnosed with autism.
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Affiliation(s)
- Sylvie Tordjman
- Department of Child and Adolescent Psychiatry, Guillaume Regnier Hospital, University of Rennes 1, Rennes, France.
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Perrin L, Fenneteau O, Ilharreborde B, Capri Y, Gérard M, Quoc EB, Passemard S, Ghoumid J, Caillaud C, Froissart R, Tabet AC, Lebon S, El Ghouzzi V, Mazda K, Verloes A. A new lysosomal storage disorder resembling Morquio syndrome in sibs. Eur J Med Genet 2012; 55:157-62. [DOI: 10.1016/j.ejmg.2012.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 01/08/2012] [Indexed: 11/28/2022]
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Delahaye A, Bitoun P, Drunat S, Gérard-Blanluet M, Chassaing N, Toutain A, Verloes A, Gatelais F, Legendre M, Faivre L, Passemard S, Aboura A, Kaltenbach S, Quentin S, Dupont C, Tabet AC, Amselem S, Elion J, Gressens P, Pipiras E, Benzacken B. Genomic imbalances detected by array-CGH in patients with syndromal ocular developmental anomalies. Eur J Hum Genet 2012; 20:527-33. [PMID: 22234157 DOI: 10.1038/ejhg.2011.233] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
In 65 patients, who had unexplained ocular developmental anomalies (ODAs) with at least one other birth defect and/or intellectual disability, we performed oligonucleotide comparative genome hybridisation-based microarray analysis (array-CGH; 105A or 180K, Agilent Technologies). In four patients, array-CGH identified clinically relevant deletions encompassing a gene known to be involved in ocular development (FOXC1 or OTX2). In four other patients, we found three pathogenic deletions not classically associated with abnormal ocular morphogenesis, namely, del(17)(p13.3p13.3), del(10)(p14p15.3), and del(16)(p11.2p11.2). We also detected copy number variations of uncertain pathogenicity in two other patients. Rearranged segments ranged in size from 0.04 to 5.68 Mb. These results show that array-CGH provides a high diagnostic yield (15%) in patients with syndromal ODAs and can identify previously unknown chromosomal regions associated with these conditions. In addition to their importance for diagnosis and genetic counselling, these data may help identify genes involved in ocular development.
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Affiliation(s)
- Andrée Delahaye
- AP-HP, Hôpital Jean Verdier, Service d'Histologie, Embryologie, et Cytogénétique, Bondy, France.
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Tabet AC, Pilorge M, Delorme R, Amsellem F, Pinard JM, Leboyer M, Verloes A, Benzacken B, Betancur C. Autism multiplex family with 16p11.2p12.2 microduplication syndrome in monozygotic twins and distal 16p11.2 deletion in their brother. Eur J Hum Genet 2012; 20:540-6. [PMID: 22234155 DOI: 10.1038/ejhg.2011.244] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The pericentromeric region of chromosome 16p is rich in segmental duplications that predispose to rearrangements through non-allelic homologous recombination. Several recurrent copy number variations have been described recently in chromosome 16p. 16p11.2 rearrangements (29.5-30.1 Mb) are associated with autism, intellectual disability (ID) and other neurodevelopmental disorders. Another recognizable but less common microdeletion syndrome in 16p11.2p12.2 (21.4 to 28.5-30.1 Mb) has been described in six individuals with ID, whereas apparently reciprocal duplications, studied by standard cytogenetic and fluorescence in situ hybridization techniques, have been reported in three patients with autism spectrum disorders. Here, we report a multiplex family with three boys affected with autism, including two monozygotic twins carrying a de novo 16p11.2p12.2 duplication of 8.95 Mb (21.28-30.23 Mb) characterized by single-nucleotide polymorphism array, encompassing both the 16p11.2 and 16p11.2p12.2 regions. The twins exhibited autism, severe ID, and dysmorphic features, including a triangular face, deep-set eyes, large and prominent nasal bridge, and tall, slender build. The eldest brother presented with autism, mild ID, early-onset obesity and normal craniofacial features, and carried a smaller, overlapping 16p11.2 microdeletion of 847 kb (28.40-29.25 Mb), inherited from his apparently healthy father. Recurrent deletions in this region encompassing the SH2B1 gene were recently reported in early-onset obesity and in individuals with neurodevelopmental disorders associated with phenotypic variability. We discuss the clinical and genetic implications of two different 16p chromosomal rearrangements in this family, and suggest that the 16p11.2 deletion in the father predisposed to the formation of the duplication in his twin children.
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Affiliation(s)
- Anne-Claude Tabet
- AP-HP, Robert Debré Hospital, Department of Genetics, Cytogenetics Unit, Paris, France
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Devillard F, Guinchat V, Moreno-De-Luca D, Tabet AC, Gruchy N, Guillem P, Nguyen Morel MA, Leporrier N, Leboyer M, Jouk PS, Lespinasse J, Betancur C. Paracentric inversion of chromosome 2 associated with cryptic duplication of 2q14 and deletion of 2q37 in a patient with autism. Am J Med Genet A 2010; 152A:2346-54. [PMID: 20684015 DOI: 10.1002/ajmg.a.33601] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We describe a patient with autism and a paracentric inversion of chromosome 2q14.2q37.3, with a concurrent duplication of the proximal breakpoint at 2q14.1q14.2 and a deletion of the distal breakpoint at 2q37.3. The abnormality was derived from his mother with a balanced paracentric inversion. The inversion in the child appeared to be cytogenetically balanced but subtelomere FISH revealed a cryptic deletion at the 2q37.3 breakpoint. High-resolution single nucleotide polymorphism array confirmed the presence of a 3.5 Mb deletion that extended to the telomere, and showed a 4.2 Mb duplication at 2q14.1q14.2. FISH studies using a 2q14.2 probe showed that the duplicated segment was located at the telomeric end of chromosome 2q. This recombinant probably resulted from breakage of a dicentric chromosome. The child had autism, mental retardation, speech and language delay, hyperactivity, growth retardation with growth hormone deficiency, insulin-dependent diabetes, and mild facial dysmorphism. Most of these features have been previously described in individuals with simple terminal deletion of 2q37. Pure duplications of the proximal chromosome 2q are rare and no specific syndrome has been defined yet, so the contribution of the 2q14.1q14.2 duplication to the phenotype of the patient is unknown. These findings underscore the need to explore apparently balanced chromosomal rearrangements inherited from a phenotypically normal parent in subjects with autism and/or developmental delay. In addition, they provide further evidence indicating that chromosome 2q terminal deletions are among the most frequently reported cytogenetic abnormalities in individuals with autism.
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Tabet AC, Aboura A, Gérard M, Pilorge M, Dupont C, Gadisseux JF, Hervy N, Pipiras E, Delahaye A, Kanafani S, Verloes A, Benzacken B, Betancur C. Molecular characterization of a de novo 6q24.2q25.3 duplication interrupting UTRN in a patient with arthrogryposis. Am J Med Genet A 2010; 152A:1781-8. [PMID: 20583184 DOI: 10.1002/ajmg.a.33433] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Chromosome 6q duplications have been documented repeatedly, allowing the delineation of a "6q duplication syndrome," characterized by hypertelorism, downslanting palpebral fissures, tented upper lip, short neck, severe mental and growth retardation, and joint contractures. Most reported cases result from malsegregation of a reciprocal translocation leading to a terminal 6q duplication and partial monosomy of another chromosome. Only 11 cases of de novo pure duplication have been reported so far. The breakpoints do not appear to be recurrent, but in most cases they have not been characterized molecularly, precluding genotype-phenotype correlation. We report on an 8-year-old girl with a phenotype consistent with mild 6q duplication syndrome, including characteristic physical findings, mild mental retardation, and joint contractures. She carries a 13 Mb de novo 6q24.2q25.3 duplication, diagnosed by high-resolution karyotype and confirmed by array-CGH. Molecular characterization of the duplicated segment with quantitative PCR showed that the proximal breakpoint is localized within the UTRN gene, encoding utrophin, the autosomal homologue of dystrophin. We discuss the possible implication of UTRN in arthrogryposis associated with duplications spanning the 6q23q26 region.
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Affiliation(s)
- Anne-Claude Tabet
- AP-HP, Cytogenetics Unit, Department of Genetics, Robert Debré Hospital, Paris, France.
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Rifai L, Port-Lis M, Tabet AC, Bailleul-Forestier I, Benzacken B, Drunat S, Kuzbari S, Passemard S, Verloes A, Aboura A. Ectodermal dysplasia-like syndrome with mental retardation due to contiguous gene deletion: further clinical and molecular delineation of del(2q32) syndrome. Am J Med Genet A 2010; 152A:111-7. [PMID: 20034071 DOI: 10.1002/ajmg.a.33164] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We report on a patient with an interstitial deletion of the long arm of chromosome 2 at 2q31.2q33.2. She had prenatal and postnatal growth retardation, microcephaly, facial dysmorphism, cleft palate, camptodactyly, bilateral talipes equinovarus, severe intellectual disability, and ectodermal anomalies. She showed thin, atrophic skin, sparse, brittle, slowly growing hair, oligodontia with abnormally shaped teeth, normal sweating, and normal fingernails, consistent with a diagnosis of ectodermal dysplasia. Array CGH analysis (Agilent 44K) showed the deletion to span 26 Mb, between cytogenetic bands 2q31.2 and 2q33. The deletion leads to hemizygosity for the HOXD cluster and its regulatory elements, COL3A1/COL5A2, GTF3C3, CASP8, CASP10, and SABT2 could perhaps interfere with long range control of DLX1 and DLX2 expression. This girl confirms the existence of a clinically recognizable 2q32 microdeletion syndrome, as recently delineated by Van Buggenhout et al. and confirms a novel putative locus for ectodermal dysplasia on chromosome 2q31q33. We recommend considering cytogenetic and/or molecular screening for del(2q32) in patients with developmental disability and ectodermal dysplasia-like phenotype, including thin skin, oligodontia, dysplastic teeth, and sparse hair.
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Affiliation(s)
- Laila Rifai
- Department of Medical Genetics, AP-HP-Robert DEBRE University Hospital, Paris, France
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Guilherme R, Guimiot F, Tabet AC, Khung-Savatovsky S, Gauthier E, Nouchy M, Benzacken B, Verloes A, Oury JF, Delezoide AL, Aboura A. Abnormal muscle development of the diaphragm in a fetus with 2p14-p16 duplication. Am J Med Genet A 2010; 149A:2892-7. [PMID: 19938079 DOI: 10.1002/ajmg.a.33135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Romain Guilherme
- Department of Developmental Biology, AP-HP Robert Debré University Hospital, Paris Diderot University, Paris, France.
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Delahaye A, Toutain A, Aboura A, Dupont C, Tabet AC, Benzacken B, Elion J, Verloes A, Pipiras E, Drunat S. Chromosome 22q13.3 deletion syndrome with a de novo interstitial 22q13.3 cryptic deletion disrupting SHANK3. Eur J Med Genet 2009; 52:328-32. [PMID: 19454329 DOI: 10.1016/j.ejmg.2009.05.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Accepted: 05/09/2009] [Indexed: 11/25/2022]
Abstract
BACKGROUND The 22q13.3 deletion syndrome (or Phelan-McDermid syndrome, MIM 606232) is characterized by developmental delay, absent or severely delayed speech, neonatal hypotonia, autistic behavior, normal to accelerated growth, and minor dysmorphic facial features. Among the three genes in the minimal critical region (from the centromere to the telomere: SHANK3, ACR and RABL2B), the defect in the SHANK3 gene is considered to be the cause of the neurobehavioral symptoms. OBJECTIVE We describe the molecular characterization of a de novo interstitial del(22)(q13.3q13.3) disrupting the SHANK3 gene in a child with a phenotype compatible with the 22q13.3 deletion syndrome. METHODS Clinical work-up included clinical histories, physical, neurological, and ophthalmological examinations, and imaging of the brain. Commercially available MLPA for subtelomeric analysis, FISH specific probes and quantitative real-time PCR were used to characterize the rearrangement. RESULTS Subtelomere analysis by MLPA showed a discrepancy between P036B and P070 kits (MCR Holland): the P070 MLPA 22q probe (targeting the ARSA gene) showed a deletion but the P036B one (targeting the RABL2B gene) showed a normal result. FISH analysis using LSI TUPLE1/LSI ARSA (Vysis) probes confirmed deletion of ARSA, whereas FISH with N25/N85A3 (Cytocell) probes, targeting the SHANK3 locus was normal. Supplemented FISH analysis using BAC clones allowed us to specify the centromeric breakpoint region of the interstitial deletion between clones RP11-354I12 and RP11-232E17, at less than 2 Mb from the telomere. Quantitative real-time PCR of exon 5, 22 and 24 and intron 9 of SHANK3 showed that the telomeric breakpoint occurred between intron 9 and exon 22. CONCLUSIONS These data highlight the difficulty of performing an appropriate test aimed at looking for cryptic 22q13.3 deletion. Furthermore, the molecular characterization of this interstitial 22q13.3 deletion contributes to the clinical and genetic delineation of the 22q13.3 deletion syndrome.
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Affiliation(s)
- A Delahaye
- Histology-Embryology-Cytogenetics Department, APHP-Jean Verdier University Hospital, UFR SMBH, Paris 13 University, Bondy, France.
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Dupont C, Delahaye A, Burglen L, Tabet AC, Aboura A, Kanafani S, Baverel F, de Villemeur TB, Benzacken B, Pipiras E. First cryptic balanced reciprocal translocation mosaicism and familial transmission. Am J Med Genet A 2008; 146A:2971-4. [DOI: 10.1002/ajmg.a.32547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bélien V, Gérard-Blanluet M, Serero S, Le Dû N, Baumann C, Jacquemont ML, Dupont C, Krabchi K, Drunat S, Elbez A, Janaud JC, Benzacken B, Verloes A, Tabet AC, Aboura A. Partial trisomy of chromosome 22 resulting from a supernumerary marker chromosome 22 in a child with features of cat eye syndrome. Am J Med Genet A 2008; 146A:1871-4. [DOI: 10.1002/ajmg.a.32392] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Kanafani S, Aboura A, Pipiras E, Carbillon L, Tabet AC, Largillière C, Garel C, Gressens P, Bucourt M, Cedrin-Durnerin I, Lachassinne E, Roumegoux C, Uzan M, Hugues JN, Wolf JP, Benzacken B. Semilobar holoprosencephaly prenatal diagnosis: an unexpected complex rearrangement in ade novo apparently balanced reciprocal translocation on karyotype. Prenat Diagn 2007; 27:279-84. [PMID: 17269127 DOI: 10.1002/pd.1639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/07/2022]
Abstract
We report a semilobar holoprosencephaly (HPE) in a post-intracytoplasmic-sperm-injection pregnancy. It was suggested by ultrasonography (US), documented on karyotype, identified with magnetic resonance imaging (MRI), established after birth and confirmed on post-mortem autopsy. An amniocentesis revealed a de novo apparently balanced reciprocal translocation 46,XY, t(7;8) (q31.3;q12). Fluorescence in situ hybridization (FISH) identified a deletion in the region of the Sonic Hedgehog gene (SHH) on der(8); nevertheless, the subtelomeric regions for chromosomes 7 and 8 were present. The parents decided to continue the pregnancy; a boy was born and survived for 3 days. The brain autopsy confirmed the semilobar HPE previously noted on US and MRI. Further, band-specific FISH revealed, in addition to SHH deletion, the presence of an inversion in the 7q translocated material on der(8). The parents' karyotypes were normal. An unexpected complex rearrangement was present in a de novo apparently balanced reciprocal translocation in a semilobar HPE.
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Affiliation(s)
- S Kanafani
- Service d'Histologie-Embryologie et Cytogénétique, Biologie de la Reproduction, Hôpital Jean Verdier, AP-HP, Bondy, France
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Tabet AC, Gosset P, Elghezal H, Fontaine S, Martinovic J, Encha Razavi F, Romana S, Vekemans M, Morichon-Delvallez N. Prenatal diagnosis and characterization of an analphoid marker chromosome 16. Prenat Diagn 2005; 24:733-6. [PMID: 15386469 DOI: 10.1002/pd.804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 11/08/2022]
Abstract
We report on a fetus with intrauterine growth retardation and multiple malformations diagnosed on ultrasound at 32 weeks. Examination of amniotic fluid cells in culture showed a 47,XY, i(16)(q10), +mar karyotype. Chromosome analysis of both parents was normal. Using spectral karyotyping, we identified the marker chromosome as a mitotically stable acentric marker chromosome derived from chromosome 16. Further studies using subtelomeric fluorescent probes confirmed the presence of an isochromosome for the long arm of chromosome 16 and showed that the acentric marker chromosome derived from the short arm of chromosome 16 leading to a trisomy for the long arm of chromosome 16. After genetic counseling, the parents decided to terminate the pregnancy. Fetal autopsy showed a male fetus with ambiguous external genitalia, cardiac malformation, megacystis and limbs anomalies as observed in other cases of trisomy for the long arm of chromosome 16. In addition, fetal brain examination showed vermian and olfactory bulb hypoplasia.
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Affiliation(s)
- A C Tabet
- Service de Cytogénétique et d'Embryologie, Hôpital Necker-Enfants Malades, Paris, France
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