1
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Molecular Mechanisms Contributing to the Etiology of Congenital Diaphragmatic Hernia: A Review and Novel Cases. J Pediatr 2022; 246:251-265.e2. [PMID: 35314152 DOI: 10.1016/j.jpeds.2022.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 03/01/2022] [Accepted: 03/15/2022] [Indexed: 12/25/2022]
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2
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Cratsenberg DM, Winningham PJ, Starr LJ. Second reported individual with a partial STAG2 deletion: middle interhemispheric variant holoprosencephaly in STAG2-related cohesinopathy. Clin Dysmorphol 2021; 30:159-163. [PMID: 33758131 DOI: 10.1097/mcd.0000000000000367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Drew M Cratsenberg
- Genetic Medicine Division, Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center
| | - Peter J Winningham
- Pediatric Radiology, Children's Specialty Physicians, Children's Hospital & Medical Center, Omaha, NE, USA
| | - Lois J Starr
- Genetic Medicine Division, Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center
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3
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Hinokuma N, Nakashima M, Asai H, Nakamura K, Akaboshi S, Fukuoka M, Togawa M, Oana S, Ohno K, Kasai M, Ogawa C, Yamamoto K, Okumiya K, Chong PF, Kira R, Uchino S, Fukuyama T, Shinagawa T, Miyata Y, Abe Y, Hojo A, Kobayashi K, Maegaki Y, Ishikawa N, Ikeda H, Amamoto M, Mizuguchi T, Iwama K, Itai T, Miyatake S, Saitsu H, Matsumoto N, Kato M. Clinical and genetic characteristics of patients with Doose syndrome. Epilepsia Open 2020; 5:442-450. [PMID: 32913952 PMCID: PMC7469791 DOI: 10.1002/epi4.12417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 06/19/2020] [Accepted: 06/28/2020] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE To elucidate the genetic background and genotype-phenotype correlations for epilepsy with myoclonic-atonic seizures, also known as myoclonic-astatic epilepsy (MAE) or Doose syndrome. METHODS We collected clinical information and blood samples from 29 patients with MAE. We performed whole-exome sequencing for all except one MAE case in whom custom capture sequencing identified a variant. RESULTS We newly identified four variants: SLC6A1 and HNRNPU missense variants and microdeletions at 2q24.2 involving SCN1A and Xp22.31 involving STS. Febrile seizures preceded epileptic or afebrile seizures in four patients, of which two patients had gene variants. Myoclonic-atonic seizures occurred at onset in four patients, of which two had variants, and during the course of disease in three patients. Variants were more commonly identified in patients with a developmental delay or intellectual disability (DD/ID), but genetic status was not associated with the severity of DD/ID. Attention-deficit/hyperactivity disorder and autistic spectrum disorder were less frequently observed in patients with variants than in those with unknown etiology. SIGNIFICANCE MAE patients had genetic heterogeneity, and HNRNPU and STS emerged as possible candidate causative genes. Febrile seizures prior to epileptic seizures and myoclonic-atonic seizure at onset indicate a genetic predisposition to MAE. Comorbid conditions were not related to genetic predisposition to MAE.
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Affiliation(s)
- Nodoka Hinokuma
- Department of PediatricsShowa University School of MedicineTokyoJapan
| | - Mitsuko Nakashima
- Department of BiochemistryHamamatsu University School of MedicineHamamatsuJapan
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Hideyuki Asai
- Department of PediatricsShowa University School of MedicineTokyoJapan
| | - Kazuyuki Nakamura
- Department of PediatricsYamagata University Faculty of MedicineYamagataJapan
| | | | - Masataka Fukuoka
- Shizuoka Institute of Epilepsy and Neurological DisordersShizuokaJapan
| | - Masami Togawa
- Department of PediatricsTottori Prefectural Central HospitalTottoriJapan
| | - Shingo Oana
- Department of PediatricsTokyo Medical UniversityTokyoJapan
| | - Koyo Ohno
- Division of Child NeurologyInstitute of Neurological SciencesFaculty of MedicineTottori UniversityYonagoJapan
| | - Mariko Kasai
- Department of Developmental Medical Sciences Graduate School of MedicineThe University of TokyoTokyoJapan
| | - Chikako Ogawa
- Department of PediatricsNagoya University Graduate School of MedicineAichiJapan
| | - Kazuna Yamamoto
- Department of PediatricsTeikyo University School of MedicineTokyoJapan
| | - Kiyohito Okumiya
- Department of Pediatrics and Child HealthKurume University School of MedicineFukuokaJapan
| | - Pin Fee Chong
- Department of Pediatric NeurologyFukuoka Children's HospitalFukuokaJapan
| | - Ryutaro Kira
- Department of Pediatric NeurologyFukuoka Children's HospitalFukuokaJapan
| | - Shumpei Uchino
- Department of NeuropediatricsTokyo Metropolitan Neurological HospitalTokyoJapan
- Department of PediatricsThe University of TokyoTokyoJapan
| | - Tetsuhiro Fukuyama
- Department of PediatricsShinshu University School of MedicineMatsumotoJapan
| | | | - Yohane Miyata
- Department of PediatricsKyorin University Faculty of MedicineTokyoJapan
| | - Yuichi Abe
- Department of PediatricsSaitama Medical UniversityMoroyamaJapan
- Division of NeurologyNational Center for Child Health and DevelopmentTokyoJapan
| | - Akira Hojo
- Department of PediatricsShowa University School of MedicineTokyoJapan
| | - Kozue Kobayashi
- Department of PediatricsShowa University School of MedicineTokyoJapan
| | - Yoshihiro Maegaki
- Division of Child NeurologyInstitute of Neurological SciencesFaculty of MedicineTottori UniversityYonagoJapan
| | | | - Hiroko Ikeda
- Shizuoka Institute of Epilepsy and Neurological DisordersShizuokaJapan
| | - Masano Amamoto
- Kitakyushu City Yahata Hospital Pediatric Emergency/Children’s Medical CenterFukuokaJapan
| | - Takeshi Mizuguchi
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Kazuhiro Iwama
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Toshiyuki Itai
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Satoko Miyatake
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Hirotomo Saitsu
- Department of BiochemistryHamamatsu University School of MedicineHamamatsuJapan
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Naomichi Matsumoto
- Department of Human GeneticsYokohama City University Graduate School of MedicineYokohamaJapan
| | - Mitsuhiro Kato
- Department of PediatricsShowa University School of MedicineTokyoJapan
- Department of PediatricsYamagata University Faculty of MedicineYamagataJapan
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4
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Goel H, Parasivam G. Another case of holoprosencephaly associated with RAD21 loss-of-function variant. Brain 2020; 143:e64. [PMID: 32696056 DOI: 10.1093/brain/awaa173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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5
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Lefebvre M, Bruel AL, Tisserant E, Bourgon N, Duffourd Y, Collardeau-Frachon S, Attie-Bitach T, Kuentz P, Assoum M, Schaefer E, El Chehadeh S, Antal MC, Kremer V, Girard-Lemaitre F, Mandel JL, Lehalle D, Nambot S, Jean-Marçais N, Houcinat N, Moutton S, Marle N, Lambert L, Jonveaux P, Foliguet B, Mazutti JP, Gaillard D, Alanio E, Poirisier C, Lebre AS, Aubert-Lenoir M, Arbez-Gindre F, Odent S, Quélin C, Loget P, Fradin M, Willems M, Bigi N, Perez MJ, Blesson S, Francannet C, Beaufrere AM, Patrier-Sallebert S, Guerrot AM, Goldenberg A, Brehin AC, Lespinasse J, Touraine R, Capri Y, Saint-Frison MH, Laurent N, Philippe C, Tran Mau-Them F, Thevenon J, Faivre L, Thauvin-Robinet C, Vitobello A. Genotype-first in a cohort of 95 fetuses with multiple congenital abnormalities: when exome sequencing reveals unexpected fetal phenotype-genotype correlations. J Med Genet 2020; 58:400-413. [PMID: 32732226 DOI: 10.1136/jmedgenet-2020-106867] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/04/2020] [Accepted: 05/21/2020] [Indexed: 11/03/2022]
Abstract
PURPOSE Molecular diagnosis based on singleton exome sequencing (sES) is particularly challenging in fetuses with multiple congenital abnormalities (MCA). Indeed, some studies reveal a diagnostic yield of about 20%, far lower than in live birth individuals showing developmental abnormalities (30%), suggesting that standard analyses, based on the correlation between clinical hallmarks described in postnatal syndromic presentations and genotype, may underestimate the impact of the genetic variants identified in fetal analyses. METHODS We performed sES in 95 fetuses with MCA. Blind to phenotype, we applied a genotype-first approach consisting of combined analyses based on variants annotation and bioinformatics predictions followed by reverse phenotyping. Initially applied to OMIM-morbid genes, analyses were then extended to all genes. We complemented our approach by using reverse phenotyping, variant segregation analysis, bibliographic search and data sharing in order to establish the clinical significance of the prioritised variants. RESULTS sES rapidly identified causal variant in 24/95 fetuses (25%), variants of unknown significance in OMIM genes in 8/95 fetuses (8%) and six novel candidate genes in 6/95 fetuses (6%). CONCLUSIONS This method, based on a genotype-first approach followed by reverse phenotyping, shed light on unexpected fetal phenotype-genotype correlations, emphasising the relevance of prenatal studies to reveal extreme clinical presentations associated with well-known Mendelian disorders.
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Affiliation(s)
- Mathilde Lefebvre
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Laboratoire d'Anatomo-Pathologie, Plateforme de Biologie Hospitalo-Universitaire, CHU de Dijon Bourgogne, Dijon, France
| | - Ange-Line Bruel
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Emilie Tisserant
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France
| | - Nicolas Bourgon
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France
| | - Yannis Duffourd
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France
| | | | - Tania Attie-Bitach
- Laboratoire d'Embryologie et de Génétique des Malformations Congénitales, Hopital Necker, APHP, Paris Cedex 15, France
| | - Paul Kuentz
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France
| | - Mirna Assoum
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France
| | - Elise Schaefer
- Service de Génétique Médicale, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Salima El Chehadeh
- Service de Génétique Médicale, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Maria Cristina Antal
- Service de Fœtopathologie, CHU de Strasbourg, Hôpital de Hautepierre, Strasbourg, France
| | - Valérie Kremer
- Laboratoire de Cytogénétique constitutionnelle et prénatale, CHU de Strasbourg, Strasbourg, France
| | - Françoise Girard-Lemaitre
- Département Médecine translationnelle et neurogénétique, Institut de génétique et de biologie moléculaire et cellulaire, Strasbourg, France
| | - Jean-Louis Mandel
- Département Médecine translationnelle et neurogénétique, Institut de génétique et de biologie moléculaire et cellulaire, Strasbourg, France
| | - Daphne Lehalle
- Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Sophie Nambot
- Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Nolwenn Jean-Marçais
- Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Nada Houcinat
- Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Sébastien Moutton
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Nathalie Marle
- Laboratoire de Génétique chromosomique et moléculaire, CHU de Dijon Bourgogne, Dijon, France
| | - Laetita Lambert
- UF de Génétique médicale, Maternité régionale, CHU de Nancy, Nancy, France
| | | | - Bernard Foliguet
- Laboratoire de Biologie de la Reproduction et du Développement Maternité de Nancy, CHU de Nancy, Nancy, France
| | - Jean-Pierre Mazutti
- Laboratoire de Biologie de la Reproduction et du Développement Maternité de Nancy, CHU de Nancy, Nancy, France
| | | | | | | | - Anne-Sophie Lebre
- Service de Génétique et Biologie de la Reproduction, CHU de Reims, Reims, France
| | | | | | - Sylvie Odent
- Service de Génétique Clinique, Hôpital Sud, CLAD Ouest, CNRS UMR6290 Génétique et Pathologies du Développement, Université de Rennes, Rennes, France
| | - Chloé Quélin
- Service de Génétique Clinique, Hôpital Sud, CLAD Ouest, CNRS UMR6290 Génétique et Pathologies du Développement, Université de Rennes, Rennes, France.,Service de Fœtopathologie, CHU de Rennes, Rennes, France
| | - Philippe Loget
- Service de Fœtopathologie, CHU de Rennes, Rennes, France
| | - Melanie Fradin
- Service de Génétique Clinique, Hôpital Sud, CLAD Ouest, CNRS UMR6290 Génétique et Pathologies du Développement, Université de Rennes, Rennes, France
| | - Marjolaine Willems
- Equipe Maladies Génétiques de l'Enfant et de l'Adulte, CHU de Montpellier, Montpellier, France
| | - Nicole Bigi
- Service de Fœtopathologie, CHU de Montpellier, Montpellier, France
| | - Marie-José Perez
- Service de Fœtopathologie, CHU de Montpellier, Montpellier, France
| | | | - Christine Francannet
- Service de Génétique médicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | | | | | | | | | | | | | - Renaud Touraine
- Service de Genetique Clinique, C.H.U. De Saint Etienne-Hopital Nord, Saint Etienne Cedex 2, France
| | - Yline Capri
- Service de génétique clinique, Hôpital Robert Debré - APHP, Paris, France
| | | | - Nicole Laurent
- Laboratoire d'Anatomo-Pathologie, Plateforme de Biologie Hospitalo-Universitaire, CHU de Dijon Bourgogne, Dijon, France
| | - Christophe Philippe
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Frederic Tran Mau-Them
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Julien Thevenon
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Département de Génétique et Procréation, CHU Grenoble Alpes, Université Grenoble Alpes, Grenoble, France
| | - Laurence Faivre
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France.,Centre de Référence Maladies Rares « Anomalies du Développement et Syndrome Malformatifs » de L'Est, Hôpital D'Enfants, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
| | - Christel Thauvin-Robinet
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France .,Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France.,Centre de Référence Déficiences Intellectuelles de Causes Rares, Hôpital D'Enfants, CHU Dijon Bourgogne, Dijon, France
| | - Antonio Vitobello
- UFR Des Sciences de Santé, INSERM-Université de Bourgogne UMR1231 GAD « Génétique des Anomalies du Développement », FHU-TRANSLAD, Dijon, France .,Unité Fonctionnelle d'Innovation diagnostique des maladies rares, FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France
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Aoi H, Lei M, Mizuguchi T, Nishioka N, Goto T, Miyama S, Suzuki T, Iwama K, Uchiyama Y, Mitsuhashi S, Itakura A, Takeda S, Matsumoto N. Retraction Note to: Nonsense variants in STAG2 result in distinct sex-dependent phenotypes. J Hum Genet 2020; 65:811. [PMID: 32536687 DOI: 10.1038/s10038-020-0782-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Hiromi Aoi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Ming Lei
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takeshi Mizuguchi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Nobuko Nishioka
- Department of Obstetrics and Gynecology, Koshigaya Municipal Hospital, Saitama, Japan
| | - Tomohide Goto
- Department of Neurology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Sahoko Miyama
- Department of Neurology, Tokyo Metropolitan Children's Medical Center, Fuchu, Tokyo, Japan
| | - Toshifumi Suzuki
- Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Kazuhiro Iwama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Satomi Mitsuhashi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Atsuo Itakura
- Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Satoru Takeda
- Department of Obstetrics and Gynecology, Faculty of Medicine, Juntendo University, Tokyo, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
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7
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Suzuki T, Suzuki T, Raveau M, Miyake N, Sudo G, Tsurusaki Y, Watanabe T, Sugaya Y, Tatsukawa T, Mazaki E, Shimohata A, Kushima I, Aleksic B, Shiino T, Toyota T, Iwayama Y, Nakaoka K, Ohmori I, Sasaki A, Watanabe K, Hirose S, Kaneko S, Inoue Y, Yoshikawa T, Ozaki N, Kano M, Shimoji T, Matsumoto N, Yamakawa K. A recurrent PJA1 variant in trigonocephaly and neurodevelopmental disorders. Ann Clin Transl Neurol 2020; 7:1117-1131. [PMID: 32530565 PMCID: PMC7359110 DOI: 10.1002/acn3.51093] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 05/10/2020] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE Neurodevelopmental disorders (NDDs) often associate with epilepsy or craniofacial malformations. Recent large-scale DNA analyses identified hundreds of candidate genes for NDDs, but a large portion of the cases still remain unexplained. We aimed to identify novel candidate genes for NDDs. METHODS We performed exome sequencing of 95 patients with NDDs including 51 with trigonocephaly and subsequent targeted sequencing of additional 463 NDD patients, functional analyses of variant in vitro, and evaluations of autism spectrum disorder (ASD)-like phenotypes and seizure-related phenotypes in vivo. RESULTS We identified de novo truncation variants in nine novel genes; CYP1A1, C14orf119, FLI1, CYB5R4, SEL1L2, RAB11FIP2, ZMYND8, ZNF143, and MSX2. MSX2 variants have been described in patients with cranial malformations, and our present patient with the MSX2 de novo truncation variant showed cranial meningocele and partial epilepsy. MSX2 protein is known to be ubiquitinated by an E3 ubiquitin ligase PJA1, and interestingly we found a PJA1 hemizygous p.Arg376Cys variant recurrently in seven Japanese NDD patients; five with trigonocephaly and one with partial epilepsy, and the variant was absent in 886 Japanese control individuals. Pja1 knock-in mice carrying p.Arg365Cys, which is equivalent to p.Arg376Cys in human, showed a significant decrease in PJA1 protein amount, suggesting a loss-of-function effect of the variant. Pja1 knockout mice displayed moderate deficits in isolation-induced ultrasonic vocalizations and increased seizure susceptibility to pentylenetetrazole. INTERPRETATION These findings propose novel candidate genes including PJA1 and MSX2 for NDDs associated with craniofacial abnormalities and/or epilepsy.
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Affiliation(s)
- Toshimitsu Suzuki
- Department of Neurodevelopmental Disorder Genetics, Institute of Brain Science, Nagoya City University Graduate School of Medical Science, Nagoya, Aichi, 467-8601, Japan.,Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Toshifumi Suzuki
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, 236-0004, Japan.,Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, 113-8421, Japan
| | - Matthieu Raveau
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, 236-0004, Japan
| | - Genki Sudo
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Yoshinori Tsurusaki
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, 236-0004, Japan.,Faculty of Nutritional Science, Sagami Women's University, Sagamihara, Kanagawa, 252-0383, Japan
| | - Takaki Watanabe
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Yuki Sugaya
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Tetsuya Tatsukawa
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Emi Mazaki
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Atsushi Shimohata
- Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Itaru Kushima
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan.,Medical Genomics Center, Nagoya University Hospital, Nagoya, Aichi, 466-8560, Japan
| | - Branko Aleksic
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tomoko Shiino
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tomoko Toyota
- Laboratory for Molecular Psychiatry, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Yoshimi Iwayama
- Laboratory for Molecular Psychiatry, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Kentaro Nakaoka
- National Epilepsy Center, NHO Shizuoka Institute of Epilepsy and Neurological Disorders, Aoi-ku, Shizuoka, 420-8688, Japan
| | - Iori Ohmori
- Department of Special Needs Education, Okayama University Graduate School of Education, Okayama, 700-8530, Japan
| | - Aya Sasaki
- Department of Pathology and Laboratory Medicine, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Chiba, 272-8513, Japan
| | - Ken Watanabe
- Section of Bone Function, Department of Bone and Joint Diseases, National Center for Geriatrics and Gerontology (NCGG), Obu, Aichi, 474-8511, Japan
| | - Shinichi Hirose
- Department of Pediatrics, School of Medicine and Research Institute for the Molecular Pathomechanisms of Epilepsy, Fukuoka University, Fukuoka, Fukuoka, 814-0180, Japan
| | - Sunao Kaneko
- Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, 036-8562, Japan.,North Tohoku Epilepsy Center, Minato Hospital, Hachinohe, 031-0813, Japan
| | - Yushi Inoue
- National Epilepsy Center, NHO Shizuoka Institute of Epilepsy and Neurological Disorders, Aoi-ku, Shizuoka, 420-8688, Japan
| | - Takeo Yoshikawa
- Laboratory for Molecular Psychiatry, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Masanobu Kano
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Takeyoshi Shimoji
- Department of Neurosurgery, Okinawa Pref. Nanbu Medical Center and Children's Medical Center, Arakawa Haebaru, Okinawa, 901-1193, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, 236-0004, Japan
| | - Kazuhiro Yamakawa
- Department of Neurodevelopmental Disorder Genetics, Institute of Brain Science, Nagoya City University Graduate School of Medical Science, Nagoya, Aichi, 467-8601, Japan.,Laboratory for Neurogenetics, RIKEN Center for Brain Science, Wako, Saitama, 351-0198, Japan
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8
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Tekendo-Ngongang C, Owosela B, Muenke M, Kruszka P. Comorbidity of congenital heart defects and holoprosencephaly is likely genetically driven and gene-specific. AMERICAN JOURNAL OF MEDICAL GENETICS. PART C, SEMINARS IN MEDICAL GENETICS 2020; 184:154-158. [PMID: 32022405 DOI: 10.1002/ajmg.c.31770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 12/18/2022]
Abstract
Comorbidity of holoprosencephaly (HPE) and congenital heart disease (CHD) in individuals with genetic variants in known HPE-related genes has been recurrently observed. Morphogenesis of the brain and heart from very early stages are regulated by several biological pathways, some of them involved in both heart and brain development as evidenced by genetic studies on model organisms. For instance, downregulation of Hedgehog or Nodal signaling pathways, both known as major triggers of HPE, has been shown to play a role in the pathogenesis of CHD, including structural defects and left-right asymmetry defects. In this study, individuals with various types of HPE were investigated clinically and by genomic sequencing. Cardiac phenotypes were assessed in 434 individuals with HPE who underwent targeted sequencing. CHDs were identified in 8% (n = 33) of individuals, including 10 (30%) cases of complex heart disease. Only four individuals (4/33) had damaging variants in the known HPE genes STAG2, SIX3, and SHH. Interestingly, no CHD was identified in the 37 individuals of our cohort with pathogenic variants in ZIC2. These findings suggest that CHD occurs more frequently in HPE-affected individuals with or without identifiable genetic variants, and this co-occurrence may be genetically driven and gene-specific.
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Affiliation(s)
- Cedrik Tekendo-Ngongang
- Medical Genetics Branch, National Human Genome Research Institutes, National Institutes of Health, Bethesda, Maryland
| | - Babajide Owosela
- Medical Genetics Branch, National Human Genome Research Institutes, National Institutes of Health, Bethesda, Maryland
| | - Maximilian Muenke
- Medical Genetics Branch, National Human Genome Research Institutes, National Institutes of Health, Bethesda, Maryland
| | - Paul Kruszka
- Medical Genetics Branch, National Human Genome Research Institutes, National Institutes of Health, Bethesda, Maryland
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9
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Rinaldi B, Race V, Corveleyn A, Van Hoof E, Bauters M, Van Den Bogaert K, Denayer E, de Ravel T, Legius E, Baldewijns M, Aertsen M, Lewi L, De Catte L, Breckpot J, Devriendt K. Next-generation sequencing in prenatal setting: Some examples of unexpected variant association. Eur J Med Genet 2020; 63:103875. [PMID: 32058062 DOI: 10.1016/j.ejmg.2020.103875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 11/28/2019] [Accepted: 02/01/2020] [Indexed: 01/08/2023]
Abstract
The application of next-generation sequencing to fetal pathology has proved to increase the diagnostic yield in fetuses with abnormal ultrasounds. We retrospectively reviewed genetic data of 30 selected cases studied through targeted resequencing of OMIM genes. In our experience, clinical data proved to be essential to support diagnostic reasoning and enhance variants' assessment. The molecular diagnosis was reached in 19/30 (63%) cases. Only in 7/19 cases the molecular diagnosis confirmed the initial diagnostic hypothesis, showing the relevance of the genotype-first approach. According to the genotype-phenotype correlation, we were able to divide the solved cases into three groups: i) the correlation is well established but it was missed due to lack of specificity, unusual presentation or recent description; ii) the clinical presentation is much more severe than currently known for the underlying condition; iii) the correlation does not recapitulate the entire phenotype, possibly due to the fetal presentation or multiple coexisting conditions. Moreover, we found a higher proportion of recessive diagnosis in abnormal fetuses compared to cohorts of individuals with developmental delay. Our findings suggest that fetal pathology may be enriched in rare alleles and/or in unusual combinations, counter-selected in postnatal genomes and thus contributing to both phenotypic extremeness and atypical presentation.
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Affiliation(s)
| | - Valerie Race
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Anniek Corveleyn
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Evelien Van Hoof
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Marijke Bauters
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Kris Van Den Bogaert
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Ellen Denayer
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Thomy de Ravel
- Centre for Medical Genetics, Reproduction and Genetics, University Hospital Brussels, Brussels, Belgium
| | - Eric Legius
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Marcella Baldewijns
- Department of Pathological Anatomy, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Michael Aertsen
- Department of Radiology, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Liesbeth Lewi
- Department of Obstetrics & Gynaecology, Fetal Medicine, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Luc De Catte
- Department of Obstetrics & Gynaecology, Fetal Medicine, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Jeroen Breckpot
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium
| | - Koenraad Devriendt
- Center for Human Genetics, University Hospitals Leuven, Catholic University Leuven, Leuven, Belgium.
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10
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El Beaino M, Liu J, Wasylishen AR, Pourebrahim R, Migut A, Bessellieu BJ, Huang K, Lin PP. Loss of Stag2 cooperates with EWS-FLI1 to transform murine Mesenchymal stem cells. BMC Cancer 2020; 20:3. [PMID: 31898537 PMCID: PMC6941350 DOI: 10.1186/s12885-019-6465-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 12/15/2019] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Ewing sarcoma is a malignancy of primitive cells, possibly of mesenchymal origin. It is probable that genetic perturbations other than EWS-FLI1 cooperate with it to produce the tumor. Sequencing studies identified STAG2 mutations in approximately 15% of cases in humans. In the present study, we hypothesize that loss of Stag2 cooperates with EWS-FLI1 in generating sarcomas derived from murine mesenchymal stem cells (MSCs). METHODS Mice bearing an inducible EWS-FLI1 transgene were crossed to p53-/- mice in pure C57/Bl6 background. MSCs were derived from the bone marrow of the mice. EWS-FLI1 induction and Stag2 knockdown were achieved in vitro by adenovirus-Cre and shRNA-bearing pGIPZ lentiviral infection, respectively. The cells were then treated with ionizing radiation to 10 Gy. Anchorage independent growth in vitro was assessed by soft agar assays. Cellular migration and invasion were evaluated by transwell assays. Cells were injected with Matrigel intramuscularly into C57/Bl6 mice to test for tumor formation. RESULTS Primary murine MSCs with the genotype EWS-FLI1 p53-/- were resistant to transformation and did not form tumors in syngeneic mice without irradiation. Stag2 inhibition increased the efficiency and speed of sarcoma formation significantly in irradiated EWS-FLI1 p53-/- MSCs. The efficiency of tumor formation was 91% for cells in mice injected with Stag2-repressed cells and 22% for mice receiving cells without Stag2 inhibition (p < .001). Stag2 knockdown reduced survival of mice in Kaplan-Meier analysis (p < .001). It also increased MSC migration and invasion in vitro but did not affect proliferation rate or aneuploidy. CONCLUSION Loss of Stag2 has a synergistic effect with EWS-FLI1 in the production of sarcomas from murine MSCs, but the mechanism may not relate to increased proliferation or chromosomal instability. Primary murine MSCs are resistant to transformation, and the combination of p53 null mutation, EWS-FLI1, and Stag2 inhibition does not confer immediate conversion of MSCs to sarcomas. Irradiation is necessary in this model, suggesting that perturbations of other genes beside Stag2 and p53 are likely to be essential in the development of EWS-FLI1-driven sarcomas from MSCs.
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Affiliation(s)
- Marc El Beaino
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Jiayong Liu
- Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital & Institute, 52 Fu-Cheng Road, Hai-Dian District, Beijing, 100142, China
| | - Amanda R Wasylishen
- Department of Genetics - Unit 1010, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Rasoul Pourebrahim
- Department of Leukemia - Unit 428, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Agata Migut
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Bryan J Bessellieu
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Ke Huang
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - Patrick P Lin
- Department of Orthopaedic Oncology - Unit 1448, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA.
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11
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Okano S, Shimada S, Tanaka R, Okayama A, Kajihama A, Suzuki N, Nakau K, Takahashi S, Matsumoto N, Saitsu H, Tanboon J, Nishino I, Azuma H. Life-threatening muscle complications of COL4A1-related disorder. Brain Dev 2020; 42:93-97. [PMID: 31540749 DOI: 10.1016/j.braindev.2019.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 12/13/2022]
Abstract
COL4A1-related disorder is recognized as a systemic disease because the alpha 1 chain of type IV collagen, encoded by COL4A1, is essential for basement membrane stability. However, muscular manifestations related to this disorder are rarely reported. We report the case of a 2-year-old boy with porencephaly, who harbored a de novo COL4A1 mutation of c.1853G > A, p. (Gly618Glu) and exhibited recurrent rhabdomyolysis with viral or bacterial infections. Moreover, he developed obstructive hypertrophic cardiomyopathy which required surgical intervention. Skeletal muscle biopsy revealed findings compatible with fiber-type disproportion. Ultrastructural study demonstrated the similar findings previously reported in mice with Col4a1 mutation including collagen disarray and reduction of electron density in the basement membrane of capillary endothelial cells and muscle fibers. Dilated endoplasmic reticulum in the capillary endothelial cells is also noted. This report adds another disease spectrum of COL4A1 mutation which include porencephaly, hypertrophic cardiomyopathy, rhabdomyolysis and fiber-type disproportion.
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Affiliation(s)
- Satomi Okano
- Department of Pediatrics, Asahikawa Medical University, Japan.
| | - Sorachi Shimada
- Department of Pediatrics, Asahikawa Medical University, Japan
| | - Ryosuke Tanaka
- Department of Pediatrics, Asahikawa Medical University, Japan
| | - Akie Okayama
- Department of Pediatrics, Asahikawa Medical University, Japan
| | - Aya Kajihama
- Department of Pediatrics, Asahikawa Medical University, Japan
| | - Nao Suzuki
- Department of Pediatrics, Asahikawa Medical University, Japan
| | - Koichi Nakau
- Department of Pediatrics, Asahikawa Medical University, Japan
| | | | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, Japan
| | - Jantima Tanboon
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP), Japan; Departments of Genome Medicine Development and Clinical Genome Analysis, Medical Genome Center (MGC), NCNP, Japan
| | - Hiroshi Azuma
- Department of Pediatrics, Asahikawa Medical University, Japan
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12
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Piché J, Van Vliet PP, Pucéat M, Andelfinger G. The expanding phenotypes of cohesinopathies: one ring to rule them all! Cell Cycle 2019; 18:2828-2848. [PMID: 31516082 PMCID: PMC6791706 DOI: 10.1080/15384101.2019.1658476] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/13/2019] [Accepted: 08/17/2019] [Indexed: 12/13/2022] Open
Abstract
Preservation and development of life depend on the adequate segregation of sister chromatids during mitosis and meiosis. This process is ensured by the cohesin multi-subunit complex. Mutations in this complex have been associated with an increasing number of diseases, termed cohesinopathies. The best characterized cohesinopathy is Cornelia de Lange syndrome (CdLS), in which intellectual and growth retardations are the main phenotypic manifestations. Despite some overlap, the clinical manifestations of cohesinopathies vary considerably. Novel roles of the cohesin complex have emerged during the past decades, suggesting that important cell cycle regulators exert important biological effects through non-cohesion-related functions and broadening the potential pathomechanisms involved in cohesinopathies. This review focuses on non-cohesion-related functions of the cohesin complex, gene dosage effect, epigenetic regulation and TGF-β in cohesinopathy context, especially in comparison to Chronic Atrial and Intestinal Dysrhythmia (CAID) syndrome, a very distinct cohesinopathy caused by a homozygous Shugoshin-1 (SGO1) mutation (K23E) and characterized by pacemaker failure in both heart (sick sinus syndrome followed by atrial flutter) and gut (chronic intestinal pseudo-obstruction) with no intellectual or growth delay. We discuss the possible impact of SGO1 alterations in human pathologies and the potential impact of the SGO1 K23E mutation in the sinus node and gut development and functions. We suggest that the human phenotypes observed in CdLS, CAID syndrome and other cohesinopathies can inform future studies into the less well-known non-cohesion-related functions of cohesin complex genes. Abbreviations: AD: Alzheimer Disease; AFF4: AF4/FMR2 Family Member 4; ANKRD11: Ankyrin Repeat Domain 11; APC: Anaphase Promoter Complex; ASD: Atrial Septal Defect; ATRX: ATRX Chromatin Remodeler; ATRX: Alpha Thalassemia X-linked intellectual disability syndrome; BIRC5: Baculoviral IAP Repeat Containing 5; BMP: Bone Morphogenetic Protein; BRD4: Bromodomain Containing 4; BUB1: BUB1 Mitotic Checkpoint Serine/Threonine Kinase; CAID: Chronic Atrial and Intestinal Dysrhythmia; CDK1: Cyclin Dependent Kinase 1; CdLS: Cornelia de Lange Syndrome; CHD: Congenital Heart Disease; CHOPS: Cognitive impairment, coarse facies, Heart defects, Obesity, Pulmonary involvement, Short stature, and skeletal dysplasia; CIPO: Chronic Intestinal Pseudo-Obstruction; c-kit: KIT Proto-Oncogene Receptor Tyrosine Kinase; CoATs: Cohesin Acetyltransferases; CTCF: CCCTC-Binding Factor; DDX11: DEAD/H-Box Helicase 11; ERG: Transcriptional Regulator ERG; ESCO2: Establishment of Sister Chromatid Cohesion N-Acetyltransferase 2; GJC1: Gap Junction Protein Gamma 1; H2A: Histone H2A; H3K4: Histone H3 Lysine 4; H3K9: Histone H3 Lysine 9; HCN4: Hyperpolarization Activated Cyclic Nucleotide Gated Potassium and Sodium Channel 4;p HDAC8: Histone deacetylases 8; HP1: Heterochromatin Protein 1; ICC: Interstitial Cells of Cajal; ICC-MP: Myenteric Plexus Interstitial cells of Cajal; ICC-DMP: Deep Muscular Plexus Interstitial cells of Cajal; If: Pacemaker Funny Current; IP3: Inositol trisphosphate; JNK: C-Jun N-Terminal Kinase; LDS: Loeys-Dietz Syndrome; LOAD: Late-Onset Alzheimer Disease; MAPK: Mitogen-Activated Protein Kinase; MAU: MAU Sister Chromatid Cohesion Factor; MFS: Marfan Syndrome; NIPBL: NIPBL, Cohesin Loading Factor; OCT4: Octamer-Binding Protein 4; P38: P38 MAP Kinase; PDA: Patent Ductus Arteriosus; PDS5: PDS5 Cohesin Associated Factor; P-H3: Phospho Histone H3; PLK1: Polo Like Kinase 1; POPDC1: Popeye Domain Containing 1; POPDC2: Popeye Domain Containing 2; PP2A: Protein Phosphatase 2; RAD21: RAD21 Cohesin Complex Component; RBS: Roberts Syndrome; REC8: REC8 Meiotic Recombination Protein; RNAP2: RNA polymerase II; SAN: Sinoatrial node; SCN5A: Sodium Voltage-Gated Channel Alpha Subunit 5; SEC: Super Elongation Complex; SGO1: Shogoshin-1; SMAD: SMAD Family Member; SMC1A: Structural Maintenance of Chromosomes 1A; SMC3: Structural Maintenance of Chromosomes 3; SNV: Single Nucleotide Variant; SOX2: SRY-Box 2; SOX17: SRY-Box 17; SSS: Sick Sinus Syndrome; STAG2: Cohesin Subunit SA-2; TADs: Topology Associated Domains; TBX: T-box transcription factors; TGF-β: Transforming Growth Factor β; TGFBR: Transforming Growth Factor β receptor; TOF: Tetralogy of Fallot; TREK1: TREK-1 K(+) Channel Subunit; VSD: Ventricular Septal Defect; WABS: Warsaw Breakage Syndrome; WAPL: WAPL Cohesin Release Factor.
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Affiliation(s)
- Jessica Piché
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
| | - Patrick Piet Van Vliet
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), INSERM, Marseille, U1251-13885, France
| | - Michel Pucéat
- LIA (International Associated Laboratory), CHU Sainte-Justine, Montréal, QC, Canada
- LIA (International Associated Laboratory), INSERM, Marseille, U1251-13885, France
- INSERM U-1251, MMG,Aix-Marseille University, Marseille, 13885, France
| | - Gregor Andelfinger
- Cardiovascular Genetics, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
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13
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Sekiguchi F, Tsurusaki Y, Okamoto N, Teik KW, Mizuno S, Suzumura H, Isidor B, Ong WP, Haniffa M, White SM, Matsuo M, Saito K, Phadke S, Kosho T, Yap P, Goyal M, Clarke LA, Sachdev R, McGillivray G, Leventer RJ, Patel C, Yamagata T, Osaka H, Hisaeda Y, Ohashi H, Shimizu K, Nagasaki K, Hamada J, Dateki S, Sato T, Chinen Y, Awaya T, Kato T, Iwanaga K, Kawai M, Matsuoka T, Shimoji Y, Tan TY, Kapoor S, Gregersen N, Rossi M, Marie-Laure M, McGregor L, Oishi K, Mehta L, Gillies G, Lockhart PJ, Pope K, Shukla A, Girisha KM, Abdel-Salam GMH, Mowat D, Coman D, Kim OH, Cordier MP, Gibson K, Milunsky J, Liebelt J, Cox H, El Chehadeh S, Toutain A, Saida K, Aoi H, Minase G, Tsuchida N, Iwama K, Uchiyama Y, Suzuki T, Hamanaka K, Azuma Y, Fujita A, Imagawa E, Koshimizu E, Takata A, Mitsuhashi S, Miyatake S, Mizuguchi T, Miyake N, Matsumoto N. Genetic abnormalities in a large cohort of Coffin-Siris syndrome patients. J Hum Genet 2019; 64:1173-1186. [PMID: 31530938 DOI: 10.1038/s10038-019-0667-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 01/15/2023]
Abstract
Coffin-Siris syndrome (CSS, MIM#135900) is a congenital disorder characterized by coarse facial features, intellectual disability, and hypoplasia of the fifth digit and nails. Pathogenic variants for CSS have been found in genes encoding proteins in the BAF (BRG1-associated factor) chromatin-remodeling complex. To date, more than 150 CSS patients with pathogenic variants in nine BAF-related genes have been reported. We previously reported 71 patients of whom 39 had pathogenic variants. Since then, we have recruited an additional 182 CSS-suspected patients. We performed comprehensive genetic analysis on these 182 patients and on the previously unresolved 32 patients, targeting pathogenic single nucleotide variants, short insertions/deletions and copy number variations (CNVs). We confirmed 78 pathogenic variations in 78 patients. Pathogenic variations in ARID1B, SMARCB1, SMARCA4, ARID1A, SOX11, SMARCE1, and PHF6 were identified in 48, 8, 7, 6, 4, 1, and 1 patients, respectively. In addition, we found three CNVs including SMARCA2. Of particular note, we found a partial deletion of SMARCB1 in one CSS patient and we thoroughly investigated the resulting abnormal transcripts.
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Affiliation(s)
- Futoshi Sekiguchi
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Yoshinori Tsurusaki
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Faculty of Nutritional Science, Sagami Women's University, Sagamihara, Kanagawa, Japan
| | - Nobuhiko Okamoto
- Department of Medical Genetics, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Keng Wee Teik
- Department of Genetics, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Seiji Mizuno
- Department of Clinical Genetics, Central Hospital, Aichi Developmental Disability Center, Kasugai, Japan
| | - Hiroshi Suzumura
- Department of Pediatrics, Dokkyo Medical University, Tochigi, Japan
| | | | - Winnie Peitee Ong
- Department of Genetics, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Muzhirah Haniffa
- Department of Genetics, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Susan M White
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Mari Matsuo
- Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan
| | - Kayoko Saito
- Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan
| | - Shubha Phadke
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Patrick Yap
- Genetic Health Service New Zealand, Auckland, New Zealand.,Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Manisha Goyal
- Rare Disease Clinic, J K Lone Hospital, SMS Medical College, Jaipur, Rajasthan, India
| | - Lorne A Clarke
- British Columbia Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Rani Sachdev
- Centre for Clinical Genetics, Sydney Children's Hospital, Randwick, NSW, Australia
| | - George McGillivray
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia
| | - Richard J Leventer
- Royal Children's Hospital Department of Neurology, Murdoch Children's Research Institute and University of Melbourne Department of Pediatrics, Parkville, 3052, Australia
| | - Chirag Patel
- Genetic Health Queensland, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | | | - Hitoshi Osaka
- Department of Pediatrics, Jichi Medical University, Tochigi, Japan
| | - Yoshiya Hisaeda
- Department of Neonatology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Hirofumi Ohashi
- Division of Medical Genetics, Saitama Children's Medical Center, Saitama, Japan
| | - Kenji Shimizu
- Division of Medical Genetics, Saitama Children's Medical Center, Saitama, Japan
| | - Keisuke Nagasaki
- Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Junpei Hamada
- Department of Pediatrics, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Sumito Dateki
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takashi Sato
- Asahikawa-Kosei General Hospital, Hokkaido, Japan
| | - Yasutsugu Chinen
- Department of Child Health and Welfare, Graduate School of Medicine, University of the Ryukyus, Nishihara, Japan
| | - Tomonari Awaya
- Department of Anatomy and Developmental Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeo Kato
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kougoro Iwanaga
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masahiko Kawai
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takashi Matsuoka
- Department of General Pediatrics, Okinawa Prefectural Nanbu Medical Center and Children's Medical Center, Okinawa, Japan
| | - Yoshikazu Shimoji
- Department of General Pediatrics, Okinawa Prefectural Nanbu Medical Center and Children's Medical Center, Okinawa, Japan
| | - Tiong Yang Tan
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Australia.,Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Seema Kapoor
- Division of Genetics, Department of Pediatrics, Maulana Azad Medical College, New Delhi, India
| | | | - Massimiliano Rossi
- Hospices Civils de Lyon, Service de Génétique, Centre de Référence Anomalies du Développement, and INSERM U1028, CNRS UMR5292, CRNL, GENDEV Team, UCBL1, Bron, France
| | - Mathieu Marie-Laure
- Hospices Civils de Lyon, Service de Génétique, Centre de Référence Anomalies du Développement, and INSERM U1028, CNRS UMR5292, CRNL, GENDEV Team, UCBL1, Bron, France
| | - Lesley McGregor
- South Australian Clinical Genetics Service, SA Pathology, Women's and Children's Hospital, Adelaide, Australia
| | - Kimihiko Oishi
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lakshmi Mehta
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Greta Gillies
- Bruce Lefroy Centre for Genetic Health Research, Murdoch Children's Research Institute, Victoria, Australia
| | - Paul J Lockhart
- Bruce Lefroy Centre for Genetic Health Research, Murdoch Children's Research Institute, Victoria, Australia
| | - Kate Pope
- Bruce Lefroy Centre for Genetic Health Research, Murdoch Children's Research Institute, Victoria, Australia
| | - Anju Shukla
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Katta Mohan Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Ghada M H Abdel-Salam
- Department of Clinical Genetics, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt
| | - David Mowat
- Department of Medical Genetics, Sydney Children's Hospital, Sydney, NSW, Australia
| | - David Coman
- Department of Paediatrics, The Wesley Hospital, Brisbane, QLD, Australia
| | - Ok Hwa Kim
- Department of Radiology, Ajou University Hospital, Suwon, Korea
| | | | - Kate Gibson
- Genetic Health Service New Zealand, Christchurch Hospital, Christchurch, New Zealand
| | | | - Jan Liebelt
- South Australian Clinical Genetics Services, Women's and Children's Hospital, North Adelaide, Australia
| | - Helen Cox
- West Midlands Regional Genetics Service, Birmingham Women's NHS Foundation Trust, Birmingham Women's Hospital, Edgbaston, Birmingham, B15 2TG, UK
| | - Salima El Chehadeh
- Service de Genetique Medicale, Hopital de Hautepierre, Strasbourg, France
| | | | - Ken Saida
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Hiromi Aoi
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Gaku Minase
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Naomi Tsuchida
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Kazuhiro Iwama
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Department of Oncology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Clinical Genetics Department, Yokohama City University Hospital, Yokohama, Kanagawa, Japan
| | - Toshifumi Suzuki
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Kohei Hamanaka
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Yoshiteru Azuma
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Atsushi Fujita
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Eri Imagawa
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eriko Koshimizu
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Atsushi Takata
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Satomi Mitsuhashi
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Satoko Miyatake
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.,Clinical Genetics Department, Yokohama City University Hospital, Yokohama, Kanagawa, Japan
| | - Takeshi Mizuguchi
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Noriko Miyake
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Graduate school of medicine, Yokohama City University, Yokohama, Japan.
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14
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Kruszka P, Berger SI, Casa V, Dekker MR, Gaesser J, Weiss K, Martinez AF, Murdock DR, Louie RJ, Prijoles EJ, Lichty AW, Brouwer OF, Zonneveld-Huijssoon E, Stephan MJ, Hogue J, Hu P, Tanima-Nagai M, Everson JL, Prasad C, Cereda A, Iascone M, Schreiber A, Zurcher V, Corsten-Janssen N, Escobar L, Clegg NJ, Delgado MR, Hajirnis O, Balasubramanian M, Kayserili H, Deardorff M, Poot RA, Wendt KS, Lipinski RJ, Muenke M. Cohesin complex-associated holoprosencephaly. Brain 2019; 142:2631-2643. [PMID: 31334757 PMCID: PMC7245359 DOI: 10.1093/brain/awz210] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/15/2019] [Accepted: 05/22/2019] [Indexed: 12/16/2022] Open
Abstract
Marked by incomplete division of the embryonic forebrain, holoprosencephaly is one of the most common human developmental disorders. Despite decades of phenotype-driven research, 80-90% of aneuploidy-negative holoprosencephaly individuals with a probable genetic aetiology do not have a genetic diagnosis. Here we report holoprosencephaly associated with variants in the two X-linked cohesin complex genes, STAG2 and SMC1A, with loss-of-function variants in 10 individuals and a missense variant in one. Additionally, we report four individuals with variants in the cohesin complex genes that are not X-linked, SMC3 and RAD21. Using whole mount in situ hybridization, we show that STAG2 and SMC1A are expressed in the prosencephalic neural folds during primary neurulation in the mouse, consistent with forebrain morphogenesis and holoprosencephaly pathogenesis. Finally, we found that shRNA knockdown of STAG2 and SMC1A causes aberrant expression of HPE-associated genes ZIC2, GLI2, SMAD3 and FGFR1 in human neural stem cells. These findings show the cohesin complex as an important regulator of median forebrain development and X-linked inheritance patterns in holoprosencephaly.
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Affiliation(s)
- Paul Kruszka
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Seth I Berger
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Valentina Casa
- Department of Cell Biology, Erasmus MC, Rotterdam, The Netherlands
| | - Mike R Dekker
- Department of Cell Biology, Erasmus MC, Rotterdam, The Netherlands
| | - Jenna Gaesser
- Department of Pediatrics, Division of Neurology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Karin Weiss
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ariel F Martinez
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - David R Murdock
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Raymond J Louie
- Greenwood Genetic Center, JC Self Research Institute of Human Genetics, Greenwood, SC, USA
| | - Eloise J Prijoles
- Greenwood Genetic Center, JC Self Research Institute of Human Genetics, Greenwood, SC, USA
| | - Angie W Lichty
- Greenwood Genetic Center, JC Self Research Institute of Human Genetics, Greenwood, SC, USA
| | - Oebele F Brouwer
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Evelien Zonneveld-Huijssoon
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Mark J Stephan
- Department of Pediatrics, University of Washington, Seattle, WA, USA
| | - Jacob Hogue
- Division of Clinical Genetics, Department of Pediatrics, Madigan Army Hospital, Tacoma, WA, USA
| | - Ping Hu
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Momoko Tanima-Nagai
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Joshua L Everson
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Chitra Prasad
- Children’s Health Research Institute, London, ON, Canada
| | - Anna Cereda
- Department of Pediatrics, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Maria Iascone
- Laboratorio di Genetica Medica, ASST Papa Giovanni XXIII, Bergamo, Italy
| | | | - Vickie Zurcher
- Genomic Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nicole Corsten-Janssen
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Luis Escobar
- Peyton Manning Children’s Hospital at St. Vincent, Medical Genetics and Neurodevelopment Center, Indianapolis, IN, USA
| | - Nancy J Clegg
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Mauricio R Delgado
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA
- Department of Neurology and Neurotherapeutics UT Southwestern Medical Center Dallas, TX, USA
| | - Omkar Hajirnis
- Pediatric Neurology, Synapses Child Neurology and Development Centre, Thane, Maharashtra, India
| | - Meena Balasubramanian
- Sheffield Clinical Genetics Service, Sheffield Children’s, NHS Foundation Trust, Sheffield, UK
- Academic Unit of Child Health, University of Sheffield, Sheffield, UK
| | - Hülya Kayserili
- Medical Genetics, Medical Faculty, Koç University, Istanbul, Turkey
| | - Matthew Deardorff
- The Division of Genetics, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
- The Department of Pediatrics, The Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA, USA
| | - Raymond A Poot
- Department of Cell Biology, Erasmus MC, Rotterdam, The Netherlands
| | - Kerstin S Wendt
- Department of Cell Biology, Erasmus MC, Rotterdam, The Netherlands
| | - Robert J Lipinski
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Maximilian Muenke
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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15
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Grinblat Y, Lipinski RJ. A forebrain undivided: Unleashing model organisms to solve the mysteries of holoprosencephaly. Dev Dyn 2019; 248:626-633. [PMID: 30993762 DOI: 10.1002/dvdy.41] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/10/2019] [Accepted: 04/10/2019] [Indexed: 12/13/2022] Open
Abstract
Evolutionary conservation and experimental tractability have made animal model systems invaluable tools in our quest to understand human embryogenesis, both normal and abnormal. Standard genetic approaches, particularly useful in understanding monogenic diseases, are no longer sufficient as research attention shifts toward multifactorial outcomes. Here, we examine this progression through the lens of holoprosencephaly (HPE), a common human malformation involving incomplete forebrain division, and a classic example of an etiologically complex outcome. We relate the basic underpinning of HPE pathogenesis to critical cell-cell interactions and signaling molecules discovered through embryological and genetic approaches in multiple model organisms, and discuss the role of the mouse model in functional examination of HPE-linked genes. We then outline the most critical remaining gaps to understanding human HPE, including the conundrum of incomplete penetrance/expressivity and the role of gene-environment interactions. To tackle these challenges, we outline a strategy that leverages new and emerging technologies in multiple model systems to solve the puzzle of HPE.
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Affiliation(s)
- Yevgenya Grinblat
- Department of Integrative Biology, University of Wisconsin, Madison, Wisconsin.,Department of Neuroscience, University of Wisconsin, Madison, Wisconsin.,McPherson Eye Research Institute, University of Wisconsin, Madison, Wisconsin
| | - Robert J Lipinski
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin.,Molecular and Environmental Toxicology Center, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin
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