Author: "Katrina Prescott" / Topic: genetics (clinical) - Searchworks@Jio Institute Digital Library Search Results

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1. Further delineation of the clinical spectrum of White–Sutton syndrome: 12 new individuals and a review of the literature

Author: Siren Berland, Andreas Benneche, Andrew E. Fry, Kate Chandler, Julie Paulsen, Marie Falkenberg Smeland, Nicola Foulds, Neeti Ghali, Katrina Prescott, Jenny Carmichael, Vani Jain, Kay Metcalfe, Oliver Murch, and Emma Hobson
Subjects: Adult, Male, Pediatrics, medicine.medical_specialty, Adolescent, Developmental Disabilities, Mutation, Missense, Transposases, Article, Neurodevelopmental disorder, Intellectual Disability, Intellectual disability, Genetics, Humans, Medicine, Missense mutation, Abnormalities, Multiple, Child, Genetics (clinical), business.industry, Infant, Dystrophy, Congenital diaphragmatic hernia, Syndrome, medicine.disease, Phenotype, Pedigree, White (mutation), Child, Preschool, Female, Sensorineural hearing loss, business
Abstract: White–Sutton syndrome (WHSUS) is a neurodevelopmental disorder caused by heterozygous loss-of-function variants in POGZ. Through the Deciphering Developmental Disorders study and clinical testing, we identified 12 individuals from 10 families with pathogenic or likely pathogenic variants in POGZ (eight de novo and two inherited). Most individuals had delayed development and/or intellectual disability. We analyzed the clinical findings in our series and combined it with data from 89 previously reported individuals. The results demonstrate WHSUS is associated with variable developmental delay or intellectual disability, increased risk of obesity, visual defects, craniofacial dysmorphism, sensorineural hearing loss, feeding problems, seizures, and structural brain malformations. Our series includes further individuals with rod-cone dystrophy, cleft lip and palate, congenital diaphragmatic hernia, and duplicated renal drainage system, suggesting these are rare complications of WHSUS. In addition, we describe an individual with a novel, de novo missense variant in POGZ and features of WHSUS. Our work further delineates the phenotypic spectrum of WHSUS highlighting the variable severity of this disorder and the observation of familial pathogenic POGZ variants.
Published: 2021

2. Monoallelic Loss of Function BMP2 Variants Result in BMP2-Related Skeletal Dysplasia Spectrum

Author: Jessica R.C. Priestley, Ashish R. Deshwar, Harsha Murthy, Maria Daniela D’Agostino, Lucie Dupuis, Balram Gangaram, Christopher Gray, Rebekah Jobling, Emanuela Pannia, Konrad Platzer, Katrina Prescott, Melody Redman, Alyssa L. Rippert, Jill A. Rosenfeld, Daryl A. Scott, Yi Wen Wang, Zelia Schmederer, Ashwin Dalal, Asodu Sandeep Sarma, Cara Skraban, James.J. Dowling, Roberto Mendoza-Londono, Anne Slavotinek, and Elizabeth J. Bhoj
Subjects: Genetics (clinical)
Published: 2023

3. De novo variants in FRMD5 are associated with developmental delay, intellectual disability, ataxia, and abnormalities of eye movement

Author: Shenzhao Lu, Mengqi Ma, Xiao Mao, Carlos A. Bacino, Joseph Jankovic, V. Reid Sutton, James A. Bartley, Xueying Wang, Jill A. Rosenfeld, Ana Beleza-Meireles, Jaynee Chauhan, Xueyang Pan, Megan Li, Pengfei Liu, Katrina Prescott, Sam Amin, George Davies, Michael F. Wangler, Yuwei Dai, and Hugo J. Bellen
Subjects: DNA, Complementary, Eye Movements, Developmental Disabilities, Tumor Suppressor Proteins, Membrane Proteins, Phosphatidylinositols, Seizures, Intellectual Disability, Report, Genetics, Animals, Humans, Ataxia, Genetics (clinical)
Abstract: Proteins containing the FERM (four-point-one, ezrin, radixin, and moesin) domain link the plasma membrane with cytoskeletal structures at specific cellular locations and have been implicated in the localization of cell-membrane-associated proteins and/or phosphoinositides. FERM domain-containing protein 5 (FRMD5) localizes at cell adherens junctions and stabilizes cell-cell contacts. To date, variants in FRMD5 have not been associated with a Mendelian disease in OMIM. Here, we describe eight probands with rare heterozygous missense variants in FRMD5 who present with developmental delay, intellectual disability, ataxia, seizures, and abnormalities of eye movement. The variants are de novo in all for whom parental testing was available (six out of eight probands), and human genetic datasets suggest that FRMD5 is intolerant to loss of function (LoF). We found that the fly ortholog of FRMD5, CG5022 (dFrmd), is expressed in the larval and adult central nervous systems where it is present in neurons but not in glia. dFrmd LoF mutant flies are viable but are extremely sensitive to heat shock, which induces severe seizures. The mutants also exhibit defective responses to light. The human FRMD5 reference (Ref) cDNA rescues the fly dFrmd LoF phenotypes. In contrast, all the FRMD5 variants tested in this study (c.340T>C, c.1051A>G, c.1053C>G, c.1054T>C, c.1045A>C, and c.1637A>G) behave as partial LoF variants. In addition, our results indicate that two variants that were tested have dominant-negative effects. In summary, the evidence supports that the observed variants in FRMD5 cause neurological symptoms in humans.
Published: 2022

4. Exome sequencing efficacy and phenotypic expansions involving esophageal atresia/tracheoesophageal fistula plus

Author: Mary R. Sy, Jaynee Chauhan, Katrina Prescott, Aliza Imam, Alison Kraus, Ana Beleza, Lee Salkeld, Saraswati Hosdurga, Michael Parker, Pradeep Vasudevan, Lily Islam, Himanshu Goel, Nicole Bain, Soo‐Mi Park, Shehla Mohammed, Klaus Dieterich, Charles Coutton, Véronique Satre, Gaëlle Vieville, Alan Donaldson, Claire Beneteau, Jamal Ghoumid, Kris Van Den Bogaert, Anneleen Boogaerts, Elise Boudry, Clémence Vanlerberghe, Florence Petit, Laura Bernardini, Barbara Torres, Teresa Mattina, Diana Carli, Giorgia Mandrile, Michele Pinelli, Nicola Brunetti‐Pierri, Katherine Neas, Rachel Beddow, Pernille M. Tørring, Flavio Faletra, Beatrice Spedicati, Paolo Gasparini, Alessandro Mussa, Giovanni Battista Ferrero, Anne Lampe, Wayne Lam, Weimin Bi, Carlos A. Bacino, Akela Kuwahara, Jeffrey O. Bush, Xiaonan Zhao, Pamela N. Luna, Chad A. Shaw, Jill A. Rosenfeld, Daryl A. Scott, Sy, Mary R, Chauhan, Jaynee, Prescott, Katrina, Imam, Aliza, Kraus, Alison, Beleza, Ana, Salkeld, Lee, Hosdurga, Saraswati, Parker, Michael, Vasudevan, Pradeep, Islam, Lily, Goel, Himanshu, Bain, Nicole, Park, Soo-Mi, Mohammed, Shehla, Dieterich, Klau, Coutton, Charle, Satre, Véronique, Vieville, Gaëlle, Donaldson, Alan, Beneteau, Claire, Ghoumid, Jamal, Van Den Bogaert, Kri, Boogaerts, Anneleen, Boudry, Elise, Vanlerberghe, Clémence, Petit, Florence, Bernardini, Laura, Torres, Barbara, Mattina, Teresa, Carli, Diana, Mandrile, Giorgia, Pinelli, Michele, Brunetti-Pierri, Nicola, Neas, Katherine, Beddow, Rachel, Tørring, Pernille M, Faletra, Flavio, Spedicati, Beatrice, Gasparini, Paolo, Mussa, Alessandro, Ferrero, Giovanni Battista, Lampe, Anne, Lam, Wayne, Bi, Weimin, Bacino, Carlos A, Kuwahara, Akela, Bush, Jeffrey O, Zhao, Xiaonan, Luna, Pamela N, Shaw, Chad A, Rosenfeld, Jill A, and Scott, Daryl A
Subjects: tracheoesophageal fistula, NRXN1, Fanconi anemia, Genetics, Humans, TCF4, esophageal atresia, exome sequencing, Exome, Genetics (clinical)
Abstract: Esophageal atresia/tracheoesophageal fistula (EA/TEF) is a life-threatening birth defect that often occurs with other major birth defects (EA/TEF+). Despite advances in genetic testing, a molecular diagnosis can only be made in a minority of EA/TEF+ cases. Here, we analyzed clinical exome sequencing data and data from the DECIPHER database to determine the efficacy of exome sequencing in cases of EA/TEF+ and to identify phenotypic expansions involving EA/TEF. Among 67 individuals with EA/TEF+ referred for clinical exome sequencing, a definitive or probable diagnosis was made in 11 cases for an efficacy rate of 16% (11/67). This efficacy rate is significantly lower than that reported for other major birth defects, suggesting that polygenic, multifactorial, epigenetic, and/or environmental factors may play a particularly important role in EA/TEF pathogenesis. Our cohort included individuals with pathogenic or likely pathogenic variants that affect TCF4 and its downstream target NRXN1, and FANCA, FANCB, and FANCC, which are associated with Fanconi anemia. These cases, previously published case reports, and comparisons to other EA/TEF genes made using a machine learning algorithm, provide evidence in support of a potential pathogenic role for these genes in the development of EA/TEF.
Published: 2022

5. Expanding the genotypic spectrum of TXNL4A variants in Burn-McKeown syndrome

Author: Jamie M Ellingford, Huw B. Thomas, Raymond T. O'Keefe, Glenda M. Beaman, Sofia Douzgou, William G. Newman, Katrina Prescott, Katherine A. Wood, and Emma Hobson
Subjects: Heart Defects, Congenital, Spliceosome, Genotype, RNA Splicing, Biology, Deafness, Choanal Atresia, Exon, splicing, Rare Disease, Genetics, Humans, Genetic Predisposition to Disease, Promoter Regions, Genetic, Transcription factor, Genetics (clinical), Alleles, Genetic Association Studies, Ribonucleoprotein, U5 Small Nuclear, Binding Sites, burn mckeown syndrome, TNXL4A, Facies, Promoter, Pedigree, DNA binding site, Phenotype, RNA splicing, Mutation, Female, Trans-acting, Minigene, Protein Binding, Transcription Factors
Abstract: The developmental disorder Burn-McKeown Syndrome (BMKS) is characterised by choanal atresia and specific craniofacial features. BMKS is caused by biallelic variants in the pre-messenger RNA splicing factor TXNL4A. Most patients have a loss-of-function variant in trans with a 34-base pair (bp) deletion (type 1 Δ34) in the promoter region. Here, we identified two patients with BMKS. One individual has a TXNL4A c.93_94delCC, p.His32Argfs*21 variant combined with a type 1 Δ34 promoter deletion. The other has an intronic TXNL4A splice site variant (c.258-3C>G) and a type 1 Δ34 promoter deletion. We show the c.258-3C>G variant, and a previously reported c.258-2A>G variant, cause skipping of the final exon of TXNL4A in a minigene splicing assay. Furthermore, we identify putative transcription factor binding sites within the 56bp of the TXNL4A promoter affected by the type 1 and type 2 Δ34 and use dual luciferase assays to identify a 22bp repeated motif essential for TXNL4A expression within this promoter region. We propose that additional variants affecting critical transcription factor binding nucleotides within the 22bp repeated motif could be relevant to BMKS etiology. Finally, our data emphasizes the need to analyse the non-coding sequence in individuals where a single likely pathogenic coding variant is identified in an autosomal recessive disorder consistent with the clinical presentation.
Published: 2021

6. Mosaicism in ASXL3-related syndrome: Description of five patients from three families

Author: Katrina Prescott, Anna Platt, Sumit Punj, Meena Balasubramanian, Deciphering Developmental Disorders Study, Schaida Schirwani, Sahar Mansour, Natalie Hauser, and Natalie Canham
Subjects: 0301 basic medicine, Male, Developmental Disabilities, Germline mosaicism, Disease, 030105 genetics & heredity, Saliva sample, Biology, Germline, 03 medical and health sciences, Neurodevelopmental disorder, Genetics, medicine, Humans, Child, Gene, Genetics (clinical), Mechanism (biology), Mosaicism, General Medicine, medicine.disease, Pedigree, genomic DNA, 030104 developmental biology, Child, Preschool, Mutation, Female, Transcription Factors
Abstract: De novo pathogenic variants in the additional sex combs-like 3 (ASXL3) gene cause a rare multi-systemic neurodevelopmental disorder. There is growing evidence that germline and somatic mosaicism are more common and play a greater role in genetic disorders than previously acknowledged. There is one previous report of ASXL3-related syndrome caused by de novo pathogenic variants in two siblings suggesting gonadal mosaicism. In this report, we present five patients with ASXL3-related syndrome, describing two families comprising two non-twin siblings harbouring apparent de novo pathogenic variants in ASXL3. Parents were clinically unaffected and there was no evidence of mosaicism from genomic DNA on exome-trio data, suggesting germline mosaicism in one of the parents. We also describe clinical details of a patient with typical features of ASXL3-related syndrome and mosaic de novo pathogenic variant in ASXL3 in 30-35% of both blood and saliva sample on trio-exome sequencing. We expand the known genetic basis of ASXL3-related syndromes and discuss mosaicism as a disease mechanism in five patients from three unrelated families. The findings of this report highlight the importance of taking gonadal mosaicism into consideration when counselling families regarding recurrence risk. We also discuss postzygotic mosaicism as a cause of fully penetrant ASXL3-related syndrome.
Published: 2020

7. The broad phenotypic spectrum of PPP2R1A -related neurodevelopmental disorders correlates with the degree of biochemical dysfunction

Author: Amy McTague, Siddharth Srivastava, Tamison Jewett, Ali Al-Beshri, Constance Smith-Hicks, Shelagh Joss, Jennifer A. Sullivan, Sarju G. Mehta, Koenraad Devriendt, Pascal Joset, Laurence Faivre, Emma Kivuva, William G. Wilson, Gunnar Houge, Naama Orenstein, Yana Hoorne, Vickie L. Hannig, Malou Heijligers, Bart Loeys, Vandana Shashi, Katrina Prescott, Iris Verbinnen, Annick Toutain, Lauren M. Baldwin, Stephen P. Fulton, Katharina Steindl, Anne Marie Childs, Anna Chassevent, Shelley Towner, Cornelia Daumer-Haas, Oded Wechsberg, Alison Male, Hannah F. Johnson, Wendy K. Chung, Anita Rauch, Anna Ruiz, Isabelle Maystadt, Sara Reynhout, Sébastien Moutton, Yvette van Ierland, Veerle Janssens, Frédéric Laumonnier, Martina Baethmann, Lisa Lenaerts, Vani Jain, Vinod Varghese, Suzanne M. Koudijs, Elisabeth Gabau, Frédérique Bonnet-Brilhault, Rizwan Hamid, Susan E. Holder, Barbara Plecko, MUMC+: MA Med Staf Spec Neurologie (9), Klinische Genetica, RS: GROW - R4 - Reproductive and Perinatal Medicine, MUMC+: DA KG Polikliniek (9), Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Imagerie et cerveau (iBrain - Inserm U1253 - UNIV Tours ), Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de génétique [Tours], Hôpital Bretonneau-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Queen Elizabeth University Hospital (Glasgow), Kennedy Krieger Institute [Baltimore], University of Antwerp (UA), Universität Zürich [Zürich] = University of Zurich (UZH), Addenbrooke’s Hospital [Cambridge, UK], Columbia University Medical Center (CUMC), Columbia University [New York], North West Thames Regional Genetics Service [London, UK] (Harrow), North West Thames Regional Genetics Service, Northwick Park Hospital, Harrow-Northwick Park Hospital [Harrow, UK] (NPH), Wake Forest University, University of Virginia [Charlottesville], Boston Children's Hospital, Prenatal Medicine Munich [Munich, Germany] (PMM), Klinikum Dritter Orden [Munich], Universitat Autònoma de Barcelona (UAB), University Hospital of Wales [Cardiff, UK], University of Alabama at Birmingham [ Birmingham] (UAB), Le Bonheur Children's Hospital [Memphis, TN, USA] (LBCH), Schneider Children’s Medical Center of Israel [Petah Tikva], Sackler Faculty of Medicine, Tel Aviv University [Tel Aviv], Leeds Teaching Hospitals NHS Trust, Equipe GAD (LNC - U1231), Lipides - Nutrition - Cancer [Dijon - U1231] (LNC), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Santé et de la Recherche Médicale (INSERM), Maison de Santé Protestante de Bordeaux-Bagatelle (MSPB), Duke University Medical Center, Maastricht University Medical Centre (MUMC), Maastricht University [Maastricht], Royal Devon and Exeter NHS Foundation Trust [UK], Great Ormond Street Institute of Child Health [London, UK] (UCL), University College of London [London] (UCL), Erasmus University Medical Center [Rotterdam] (Erasmus MC), Medical University Graz, Institut de Pathologie et Génétique [Gosselies] (I.P.G.), Vanderbilt University Medical Center [Nashville], Vanderbilt University [Nashville], Haukeland University Hospital, University of Bergen (UiB), Leuven Brain Institute [Leuven, Belgium] (LBI), Université de Tours-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau, Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Clinical Genetics, University of Virginia, University Hospital of Wales (UHW), Tel Aviv University (TAU), Great Ormond Street Institute of Child Health (UCL), and Laumonnier, Frédéric
Subjects: 0301 basic medicine, Microcephaly, [SDV]Life Sciences [q-bio], Intellectual disability, 030105 genetics & heredity, Bioinformatics, Epilepsy, Neurodevelopmental disorder, CORE, Protein Phosphatase 2, SPECIFICITY, Genetics (clinical), PROTEIN PHOSPHATASE 2A, Phenotype, Hypotonia, FAMILY, 3. Good health, PP2A, [SDV] Life Sciences [q-bio], PPP2R1A, PPP2R5D, INSIGHTS, intellectual disability, Muscle Hypotonia, medicine.symptom, Language delay, [SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics, Article, 03 medical and health sciences, [SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology, medicine, Humans, [SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology, business.industry, Macrocephaly, DEPHOSPHORYLATION, medicine.disease, neurodevelopmental disorder, 030104 developmental biology, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Neurodevelopmental Disorders, SUBUNIT, epilepsy, Human medicine, TAU, business, Transcription Factors
Abstract: PURPOSE: Neurodevelopmental disorders (NDD) caused by protein phosphatase 2A (PP2A) dysfunction have mainly been associated with de novo variants in PPP2R5D and PPP2CA, and more rarely in PPP2R1A. Here, we aimed to better understand the latter by characterizing 30 individuals with de novo and often recurrent variants in this PP2A scaffolding Aα subunit. METHODS: Most cases were identified through routine clinical diagnostics. Variants were biochemically characterized for phosphatase activity and interaction with other PP2A subunits. RESULTS: We describe 30 individuals with 16 different variants in PPP2R1A, 21 of whom had variants not previously reported. The severity of developmental delay ranged from mild learning problems to severe intellectual disability (ID) with or without epilepsy. Common features were language delay, hypotonia, and hypermobile joints. Macrocephaly was only seen in individuals without B55α subunit-binding deficit, and these patients had less severe ID and no seizures. Biochemically more disruptive variants with impaired B55α but increased striatin binding were associated with profound ID, epilepsy, corpus callosum hypoplasia, and sometimes microcephaly. CONCLUSION: We significantly expand the phenotypic spectrum of PPP2R1A-related NDD, revealing a broader clinical presentation of the patients and that the functional consequences of the variants are more diverse than previously reported. ispartof: Genetics In Medicine vol:23 issue:2 ispartof: location:United States status: Published online
Published: 2020

8. CTCF variants in 39 individuals with a variable neurodevelopmental disorder broaden the mutational and clinical spectrum

Author: Enrico D.H. Konrad, Niels Nardini, Almuth Caliebe, Inga Nagel, Dana Young, Gabriella Horvath, Stephanie L. Santoro, Christine Shuss, Alban Ziegler, Dominique Bonneau, Marlies Kempers, Rolph Pfundt, Eric Legius, Arjan Bouman, Kyra E. Stuurman, Katrin Õunap, Sander Pajusalu, Monica H. Wojcik, Georgia Vasileiou, Gwenaël Le Guyader, Hege M. Schnelle, Siren Berland, Evelien Zonneveld-Huijssoon, Simone Kersten, Aditi Gupta, Patrick R. Blackburn, Marissa S. Ellingson, Matthew J. Ferber, Radhika Dhamija, Eric W. Klee, Meriel McEntagart, Klaske D. Lichtenbelt, Amy Kenney, Samantha A. Vergano, Rami Abou Jamra, Konrad Platzer, Mary Ella Pierpont, Divya Khattar, Robert J. Hopkin, Richard J. Martin, Marjolijn C.J. Jongmans, Vivian Y. Chang, Julian A. Martinez-Agosto, Outi Kuismin, Mitja I. Kurki, Olli Pietiläinen, Aarno Palotie, Timothy J. Maarup, Diana S. Johnson, Katja Venborg Pedersen, Lone W. Laulund, Sally A. Lynch, Moira Blyth, Katrina Prescott, Natalie Canham, Rita Ibitoye, Eva H. Brilstra, Marwan Shinawi, Emily Fassi, Heinrich Sticht, Anne Gregor, Hilde Van Esch, Christiane Zweier, Graduate School, Clinical Genetics, Institute for Molecular Medicine Finland, Genomics of Neurological and Neuropsychiatric Disorders, University of Helsinki, Center for Population, Health and Society, Centre of Excellence in Complex Disease Genetics, and Aarno Palotie / Principal Investigator
Subjects: Male, CCCTC-Binding Factor, Developmental Disabilities, lnfectious Diseases and Global Health Radboud Institute for Molecular Life Sciences [Radboudumc 4], Transcriptome, 0302 clinical medicine, Neurodevelopmental disorder, Intellectual disability, Drosophila Proteins, Missense mutation, TOOL, Genetics(clinical), Child, Genetics (clinical), Genetics & Heredity, Genetics, 0303 health sciences, biology, GENE ONTOLOGY, neurodevelopmental disorders, 1184 Genetics, developmental biology, physiology, HUMANS, Chromatin, 3. Good health, DROSOPHILA, Drosophila melanogaster, intellectual disability, LIBRARY, Female, INACTIVATION, Life Sciences & Biomedicine, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], EXPRESSION, DATABASE, Mutation, Missense, Article, Young Adult, 03 medical and health sciences, Exome Sequencing, medicine, Animals, Gene, 030304 developmental biology, Science & Technology, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Gene Expression Profiling, biology.organism_classification, medicine.disease, CTCF, Gene Expression Regulation, DE-NOVO MUTATIONS, Mutation, 030217 neurology & neurosurgery, Transcription Factors, chromatin organization
Abstract: PURPOSE: Pathogenic variants in the chromatin organizer CTCF were previously reported in seven individuals with a neurodevelopmental disorder (NDD). METHODS: Through international collaboration we collected data from 39 subjects with variants in CTCF. We performed transcriptome analysis on RNA from blood samples and utilized Drosophila melanogaster to investigate the impact of Ctcf dosage alteration on nervous system development and function. RESULTS: The individuals in our cohort carried 2 deletions, 8 likely gene-disruptive, 2 splice-site, and 20 different missense variants, most of them de novo. Two cases were familial. The associated phenotype was of variable severity extending from mild developmental delay or normal IQ to severe intellectual disability. Feeding difficulties and behavioral abnormalities were common, and variable other findings including growth restriction and cardiac defects were observed. RNA-sequencing in five individuals identified 3828 deregulated genes enriched for known NDD genes and biological processes such as transcriptional regulation. Ctcf dosage alteration in Drosophila resulted in impaired gross neurological functioning and learning and memory deficits. CONCLUSION: We significantly broaden the mutational and clinical spectrum ofCTCF-associated NDDs. Our data shed light onto the functional role of CTCF by identifying deregulated genes and show that Ctcf alterations result in nervous system defects in Drosophila. ispartof: GENETICS IN MEDICINE vol:21 issue:12 pages:2723-2733 ispartof: location:United States status: published
Published: 2019

9. Heterozygous Variants in KMT2E Cause a Spectrum of Neurodevelopmental Disorders and Epilepsy

Author: Anne H. O’Donnell-Luria, Lynn S. Pais, Víctor Faundes, Jordan C. Wood, Abigail Sveden, Victor Luria, Rami Abou Jamra, Andrea Accogli, Kimberly Amburgey, Britt Marie Anderlid, Silvia Azzarello-Burri, Alice A. Basinger, Claudia Bianchini, Lynne M. Bird, Rebecca Buchert, Wilfrid Carre, Sophia Ceulemans, Perrine Charles, Helen Cox, Lisa Culliton, Aurora Currò, Florence Demurger, James J. Dowling, Benedicte Duban-Bedu, Christèle Dubourg, Saga Elise Eiset, Luis F. Escobar, Alessandra Ferrarini, Tobias B. Haack, Mona Hashim, Solveig Heide, Katherine L. Helbig, Ingo Helbig, Raul Heredia, Delphine Héron, Bertrand Isidor, Amy R. Jonasson, Pascal Joset, Boris Keren, Fernando Kok, Hester Y. Kroes, Alinoë Lavillaureix, Xin Lu, Saskia M. Maas, Gustavo H.B. Maegawa, Carlo L.M. Marcelis, Paul R. Mark, Marcelo R. Masruha, Heather M. McLaughlin, Kirsty McWalter, Esther U. Melchinger, Saadet Mercimek-Andrews, Caroline Nava, Manuela Pendziwiat, Richard Person, Gian Paolo Ramelli, Luiza L.P. Ramos, Anita Rauch, Caitlin Reavey, Alessandra Renieri, Angelika Rieß, Amarilis Sanchez-Valle, Shifteh Sattar, Carol Saunders, Niklas Schwarz, Thomas Smol, Myriam Srour, Katharina Steindl, Steffen Syrbe, Jenny C. Taylor, Aida Telegrafi, Isabelle Thiffault, Doris A. Trauner, Helio van der Linden, Silvana van Koningsbruggen, Laurent Villard, Ida Vogel, Julie Vogt, Yvonne G. Weber, Ingrid M. Wentzensen, Elysa Widjaja, Jaroslav Zak, Samantha Baxter, Siddharth Banka, Lance H. Rodan, Jeremy F. McRae, Stephen Clayton, Tomas W. Fitzgerald, Joanna Kaplanis, Elena Prigmore, Diana Rajan, Alejandro Sifrim, Stuart Aitken, Nadia Akawi, Mohsan Alvi, Kirsty Ambridge, Daniel M. Barrett, Tanya Bayzetinova, Philip Jones, Wendy D. Jones, Daniel King, Netravathi Krishnappa, Laura E. Mason, Tarjinder Singh, Adrian R. Tivey, Munaza Ahmed, Uruj Anjum, Hayley Archer, Ruth Armstrong, Jana Awada, Meena Balasubramanian, Diana Baralle, Angela Barnicoat, Paul Batstone, David Baty, Chris Bennett, Jonathan Berg, Birgitta Bernhard, A. Paul Bevan, Maria Bitner-Glindzicz, Edward Blair, Moira Blyth, David Bohanna, Louise Bourdon, David Bourn, Lisa Bradley, Angela Brady, Simon Brent, Carole Brewer, Kate Brunstrom, David J. Bunyan, John Burn, Natalie Canham, Bruce Castle, Kate Chandler, Elena Chatzimichali, Deirdre Cilliers, Angus Clarke, Susan Clasper, Jill Clayton-Smith, Virginia Clowes, Andrea Coates, Trevor Cole, Irina Colgiu, Amanda Collins, Morag N. Collinson, Fiona Connell, Nicola Cooper, Lara Cresswell, Gareth Cross, Yanick Crow, Mariella D’Alessandro, Tabib Dabir, Rosemarie Davidson, Sally Davies, Dylan de Vries, John Dean, Charu Deshpande, Gemma Devlin, Abhijit Dixit, Angus Dobbie, Alan Donaldson, Dian Donnai, Deirdre Donnelly, Carina Donnelly, Angela Douglas, Sofia Douzgou, Alexis Duncan, Jacqueline Eason, Sian Ellard, Ian Ellis, Frances Elmslie, Karenza Evans, Sarah Everest, Tina Fendick, Richard Fisher, Frances Flinter, Nicola Foulds, Andrew Fry, Alan Fryer, Carol Gardiner, Lorraine Gaunt, Neeti Ghali, Richard Gibbons, Harinder Gill, Judith Goodship, David Goudie, Emma Gray, Andrew Green, Philip Greene, Lynn Greenhalgh, Susan Gribble, Rachel Harrison, Lucy Harrison, Victoria Harrison, Rose Hawkins, Liu He, Stephen Hellens, Alex Henderson, Sarah Hewitt, Lucy Hildyard, Emma Hobson, Simon Holden, Muriel Holder, Susan Holder, Georgina Hollingsworth, Tessa Homfray, Mervyn Humphreys, Jane Hurst, Ben Hutton, Stuart Ingram, Melita Irving, Lily Islam, Andrew Jackson, Joanna Jarvis, Lucy Jenkins, Diana Johnson, Elizabeth Jones, Dragana Josifova, Shelagh Joss, Beckie Kaemba, Sandra Kazembe, Rosemary Kelsell, Bronwyn Kerr, Helen Kingston, Usha Kini, Esther Kinning, Gail Kirby, Claire Kirk, Emma Kivuva, Alison Kraus, Dhavendra Kumar, V. K. Ajith Kumar, Katherine Lachlan, Wayne Lam, Anne Lampe, Caroline Langman, Melissa Lees, Derek Lim, Cheryl Longman, Gordon Lowther, Sally A. Lynch, Alex Magee, Eddy Maher, Alison Male, Sahar Mansour, Karen Marks, Katherine Martin, Una Maye, Emma McCann, Vivienne McConnell, Meriel McEntagart, Ruth McGowan, Kirsten McKay, Shane McKee, Dominic J. McMullan, Susan McNerlan, Catherine McWilliam, Sarju Mehta, Kay Metcalfe, Anna Middleton, Zosia Miedzybrodzka, Emma Miles, Shehla Mohammed, Tara Montgomery, David Moore, Sian Morgan, Jenny Morton, Hood Mugalaasi, Victoria Murday, Helen Murphy, Swati Naik, Andrea Nemeth, Louise Nevitt, Ruth Newbury-Ecob, Andrew Norman, Rosie O’Shea, Caroline Ogilvie, Kai-Ren Ong, Soo-Mi Park, Michael J. Parker, Chirag Patel, Joan Paterson, Stewart Payne, Daniel Perrett, Julie Phipps, Daniela T. Pilz, Martin Pollard, Caroline Pottinger, Joanna Poulton, Norman Pratt, Katrina Prescott, Sue Price, Abigail Pridham, Annie Procter, Hellen Purnell, Oliver Quarrell, Nicola Ragge, Raheleh Rahbari, Josh Randall, Julia Rankin, Lucy Raymond, Debbie Rice, Leema Robert, Eileen Roberts, Jonathan Roberts, Paul Roberts, Gillian Roberts, Alison Ross, Elisabeth Rosser, Anand Saggar, Shalaka Samant, Julian Sampson, Richard Sandford, Ajoy Sarkar, Susann Schweiger, Richard Scott, Ingrid Scurr, Ann Selby, Anneke Seller, Cheryl Sequeira, Nora Shannon, Saba Sharif, Charles Shaw-Smith, Emma Shearing, Debbie Shears, Eamonn Sheridan, Ingrid Simonic, Roldan Singzon, Zara Skitt, Audrey Smith, Kath Smith, Sarah Smithson, Linda Sneddon, Miranda Splitt, Miranda Squires, Fiona Stewart, Helen Stewart, Volker Straub, Mohnish Suri, Vivienne Sutton, Ganesh Jawahar Swaminathan, Elizabeth Sweeney, Kate Tatton-Brown, Cat Taylor, Rohan Taylor, Mark Tein, I. Karen Temple, Jenny Thomson, Marc Tischkowitz, Susan Tomkins, Audrey Torokwa, Becky Treacy, Claire Turner, Peter Turnpenny, Carolyn Tysoe, Anthony Vandersteen, Vinod Varghese, Pradeep Vasudevan, Parthiban Vijayarangakannan, Emma Wakeling, Sarah Wallwark, Jonathon Waters, Astrid Weber, Diana Wellesley, Margo Whiteford, Sara Widaa, Sarah Wilcox, Emily Wilkinson, Denise Williams, Nicola Williams, Louise Wilson, Geoff Woods, Christopher Wragg, Michael Wright, Laura Yates, Michael Yau, Chris Nellåker, Michael Parker, Helen V. Firth, Caroline F. Wright, David R. FitzPatrick, Jeffrey C. Barrett, Matthew E. Hurles, Department of Medicine 1, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Center for Medical Genetics, Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche (ISTC, CNR), Istituto di Scienze e Tecnologie della Cognizione, Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Génétique médicale [Centre Hospitalier de Vannes], Centre hospitalier Bretagne Atlantique (Morbihan) (CHBA), Department of Pediatrics, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Centre de Génétique Chromosomique [Hôpital Saint Vincent de Paul], Hôpital Saint Vincent de Paul-Groupement des Hôpitaux de l'Institut Catholique de Lille (GHICL), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Institut de Génétique et Développement de Rennes (IGDR), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Service de génétique médicale, Centre Hospitalier Universitaire Vaudois [Lausanne] (CHUV), Institute of Human Genetics, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Helmholtz Zentrum München = German Research Center for Environmental Health, Groupe de Recherche Clinique : Déficience Intellectuelle et Autisme (GRC), Université Pierre et Marie Curie - Paris 6 (UPMC), Children’s Hospital of Philadelphia (CHOP ), Service de Génétique Médicale, Centre hospitalier universitaire de Nantes (CHU Nantes), Department of Public Health Sciences, Karolinska Institutet [Stockholm], Department of Molecular and Human Genetics, Baylor College of Medicine (BCM), Baylor University-Baylor University, Institute of Medical Genetics, Universität Zürich [Zürich] = University of Zurich (UZH), Università degli Studi di Camerino = University of Camerino (UNICAM), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), University of Oxford, GeneDx [Gaithersburg, MD, USA], Department of Clinical Genetics (Academic Medical Center, University of Amsterdam), VU University Medical Center [Amsterdam], Marseille medical genetics - Centre de génétique médicale de Marseille (MMG), Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Clinical Genetics, Aarhus University Hospital, Boston Children's Hospital, Wellcome Trust Genome Campus, The Wellcome Trust Sanger Institute [Cambridge], Institute of Biomedical Engineering [Oxford] (IBME), Climatic Research Unit, University of East Anglia [Norwich] (UEA), Imperial College London, St Mary's Hospital, East Anglian Medical Genetics Service, Cytogenetics Laboratory, Addenbrooke's Hospital, Sheffield Children's NHS Foundation Trust, Regional Genetic Service, St Mary's Hospital, Manchester, Genetics, University of Southampton, Great Ormond Street Hospital for Children [London] (GOSH), Yorkshire Regional Clinical Genetics Service, Chapel Allerton Hospital, Molecular and Clinical Medicine [Dundee, UK] (School of Medicine), University of Dundee [UK]-Ninewells Hospital & Medical School [Dundee, UK], Department of Clinical Genetics, Oxford Regional Genetics Service, The Churchill hospital, North West Thames Regional Genetics, Northwick Park Hospital, Royal Devon & Exeter Hospital, Wessex Clinical Genetics Service, Wessex clinical genetics service, Manchester University NHS Foundation Trust (MFT), West Midlands Regional Genetics Service, Birmingham Women's and Children's NHS Foundation Trust, Our Lady's hospital for Sick Children, Our Lady's Hospital for Sick Children, Guy's Hospital [London], University Hospitals Leicester, University of Edinburgh, Belfast City Hospital, Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Institute of Medical Genetics, Heath Park, Cardiff, The London Clinic, Nottingham City Hospital, Clinical Genetics Department, St Michael's Hospital, Department of Genetic Medicine, Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust (NUH), Royal Devon and Exeter Foundation Trust, Histopathology, St. George's Hospital, Teesside Genetics Unit, James Cook University (JCU), Kansas State University, Liverpool Women's NHS Foundation Trust, Department of Medical Genetics, HMNC Brain Health, North West Thames Regional Genetics Service, Northwick Park Hospital, Harrow, Leicester Royal Infirmary, University Hospitals Leicester-University Hospitals Leicester, Ninewells Hospital and Medical School [Dundee], Academic Centre on Rare Diseases (ACoRD), University College Dublin [Dublin] (UCD), Oxford Brookes University, Institute of medicinal plant development, Chinese Academy of Medical Sciences, Newcastle Upon Tyne Hospitals NHS Trust, Service d'explorations fonctionnelles respiratoires [Lille], Department of Computer Science - Trinity College Dublin, University of Dublin, Department of Clinical Genetics (Sheffield Children’s NHS Foundation Trust), Division of Medical & Molecular Genetics, NHS Greater Glasgow & Clyde [Glasgow] (NHSGGC), Department of Clinical Genetics [Churchill Hospital], Churchill Hospital Oxford Centre for Haematology, Weizmann Institute of Science [Rehovot, Israël], Southampton General Hospital, Western General Hospital, Head of the Department of Medical Genetics, University of Birmingham [Birmingham], SW Thames Regional Genetics Service, St Georgeâ™s University of London, London, Institut Cochin (IC UM3 (UMR 8104 / U1016)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), All Wales Medical Genetics Services, Singleton Hospital, Central Manchester University Hospitals NHS Foundation Trust, University of North Texas (UNT), Clinical Genetics, Northern Genetics Service, Newcastle University [Newcastle], United Kingdom Met Office [Exeter], Institute of Medical Genetics (University Hospital of Wales), University Hospital of Wales (UHW), West Midlands Regional Genetics Laboratory and Clinical Genetics Unit, Birmingham Women's Hospital, Laboratory of Molecular Genetics, National Institute of Child Health and Human Development, National Institutes of Health, Department of Genetics, Cell- and Immunobiology, Semmelweis University, University Hospitals Bristol, Marketing (MKT), EESC-GEM Grenoble Ecole de Management, Addenbrookes Hospital, West of Scotland Genetics Service (Queen Elizabeth University Hospital), University Hospital Birmingham Queen Elizabeth, Department of Clnical Genetics, Chapel Allerton Hospital, Department of Clinical Genetics, Northampton General Hospital, Northampton, Royal Devon and Exeter Hospital [Exeter, UK] (RDEH), Guy's and St Thomas' Hospital [London], School of Computer Science, Bangor University, University Hospital Southampton, Clinical Genetics Unit, St Georges, University of London, Medical Genetics, Cardiff University, Research and Development, Futurelab, Nottingham Regional Genetics Service [Nottingham, UK], Nottingham University Hospitals NHS Trust (NUH)-City Hospital Campus [Nottingham, UK], University of St Andrews [Scotland], Clinical Genetics Service, Nottingham University Hospitals NHS Trust - City Hospital Campus, West Midlands Regional Genetics Unit, Department of Neurology, Johns Hopkins University (JHU), Oxford University Hospitals NHS Trust, St James's University Hospital, Leeds Teaching Hospitals NHS Trust, Addenbrooke's Hospital, Cambridge University NHS Trust, Institute of Human Genetics, Newcastle, Division of Biological Stress Response [Amsterdam, The Netherlands], The Netherlands Cancer Institute [Amsterdam, The Netherlands], Johns Hopkins Bloomberg School of Public Health [Baltimore], Birmingham Women’s Hospital, Department of Genetics, Portuguese Oncology Institute, Molecular Genetics, IWK Health Centre, IWK health centre, North West london hospitals NHS Trust, Department of Clinical Genetics (Queen Elizabeth University Hospital, Glasgow), Queen Elizabeth University Hospital (Glasgow), Birmingham women's hospital, Birmingham, Ethox Centre, Department of Public Health and Primary Health Care, University of Oxford, Badenoch Building, Old Road Campus, Headington, R01 HD091846, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Human Genome Research Institute, National Institutes of Health’s National Institute of Child Health and Human Development, Boston Children’s Hospital Faculty Development Fellowship, UM1HG008900, Broad Center for Mendelian Genomics, Chile’s National Commission for Scientific and Technological Research, DFG WE4896/3-1, German Research Society, WT 100127, Health Innovation Challenge Fund, Comprehensive Clinical Research Network, Skaggs-Oxford Scholarship, 10/H0305/83, Cambridge South REC, REC GEN/284/12, Republic of Ireland, WT098051, Wellcome Sanger Institute, 72160007, Comisión Nacional de Investigación Científica y Tecnológica, Children's Hospital of Philadelphia, Technische Universität Kaiserslautern, 1DH1813319, Dietmar Hopp Stiftung, National Institute for Health Research, Department of Health & Social Care, Service de neurologie 1 [CHU Pitié-Salpétrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU), Hôpital Saint Vincent de Paul-GHICL, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM)-Helmholtz-Zentrum München (HZM)-German Research Center for Environmental Health, Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Università degli Studi di Camerino (UNICAM), University of Oxford [Oxford], Institut National de la Santé et de la Recherche Médicale (INSERM)-Aix Marseille Université (AMU), Nottingham University Hospitals NHS Trust, Nottingham University Hospitals, SW Thames Regional Genetics Service, St Georgeâ™s University of London, London, University Hospital of Wales, Grenoble Ecole de Management, Royal Devon and Exeter Hospital, City Hospital Campus [Nottingham, UK]-Nottingham University Hospitals NHS Trust [UK], ANS - Complex Trait Genetics, Human Genetics, ARD - Amsterdam Reproduction and Development, ACS - Pulmonary hypertension & thrombosis, Service de Neurologie [CHU Pitié-Salpêtrière], IFR70-CHU Pitié-Salpêtrière [AP-HP], GHICL-Hôpital Saint Vincent de Paul, Centre National de la Recherche Scientifique (CNRS)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Friedrich-Alexander d'Erlangen-Nuremberg, Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], Centre Hospitalier Bretagne Atlantique [Vannes], Technische Universität München [München] (TUM)-Helmholtz-Zentrum München (HZM)-German Research Center for Environmental Health, Service de Génétique et Cytogénétique [CHU Pitié-Salpêtrière], University of Zürich [Zürich] (UZH), Università di Camerino (UNICAM), Birmingham Women's Hospital Healthcare NHS Trust, University Hospitals of Leicester, Sheffield Children’s Hospital, Weizmann Institute of Science, and Grenoble Ecole de Management (GEM)
Subjects: 0301 basic medicine, Male, Microcephaly, [SDV]Life Sciences [q-bio], Haploinsufficiency, autism, epilepsy, epileptic encephalopathy, global developmental delay, H3K4 methylation, intellectual disability, KMT2E, neurodevelopmental disorder, Adolescent, Adult, Child, Child, Preschool, DNA-Binding Proteins, Epilepsy, Female, Humans, Infant, Neurodevelopmental Disorders, Pedigree, Phenotype, Young Adult, Genetic Variation, Heterozygote, 0302 clinical medicine, Neurodevelopmental disorder, Intellectual disability, Global developmental delay, Genetics (clinical), ComputingMilieux_MISCELLANEOUS, Genetics, 0303 health sciences, Hypotonia, 030220 oncology & carcinogenesis, medicine.symptom, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], 03 medical and health sciences, Report, medicine, Journal Article, Expressivity (genetics), Preschool, 030304 developmental biology, [SDV.GEN]Life Sciences [q-bio]/Genetics, business.industry, Macrocephaly, medicine.disease, 030104 developmental biology, [SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics, Autism, business, 030217 neurology & neurosurgery
Abstract: Contains fulltext : 206572.pdf (Publisher’s version ) (Open Access) We delineate a KMT2E-related neurodevelopmental disorder on the basis of 38 individuals in 36 families. This study includes 31 distinct heterozygous variants in KMT2E (28 ascertained from Matchmaker Exchange and three previously reported), and four individuals with chromosome 7q22.2-22.23 microdeletions encompassing KMT2E (one previously reported). Almost all variants occurred de novo, and most were truncating. Most affected individuals with protein-truncating variants presented with mild intellectual disability. One-quarter of individuals met criteria for autism. Additional common features include macrocephaly, hypotonia, functional gastrointestinal abnormalities, and a subtle facial gestalt. Epilepsy was present in about one-fifth of individuals with truncating variants and was responsive to treatment with anti-epileptic medications in almost all. More than 70% of the individuals were male, and expressivity was variable by sex; epilepsy was more common in females and autism more common in males. The four individuals with microdeletions encompassing KMT2E generally presented similarly to those with truncating variants, but the degree of developmental delay was greater. The group of four individuals with missense variants in KMT2E presented with the most severe developmental delays. Epilepsy was present in all individuals with missense variants, often manifesting as treatment-resistant infantile epileptic encephalopathy. Microcephaly was also common in this group. Haploinsufficiency versus gain-of-function or dominant-negative effects specific to these missense variants in KMT2E might explain this divergence in phenotype, but requires independent validation. Disruptive variants in KMT2E are an under-recognized cause of neurodevelopmental abnormalities.
Published: 2019

10. Correction: Arterial tortuosity syndrome: 40 new families and literature review

Author: Damien Bonnet, Paul Coucke, David R. Deyle, Mohammed Z. Haider, Fahrettin Uysal, Eudice E. Fontenot, Inge De Wandele, Margot A. Cousin, Waheed Al-Manea, Sehime Gulsun Temel, Massimiliano Rossi, Fabienne Giuliano, Sofie De Schepper, Joshua S. Hardin, Mazen Al-Essa, Ergun Cil, N Canham, Majed Dasouki, Harry C. Dietz, Juliette Albuisson, Pamela Moceri, Sophie Dupuis-Girod, Koenraad Devriendt, David Warner, Bart Loeys, Özlem M. Bostan, Andrea Taylor, Neus Baena, Elise Schaefer, Sheela Nampoothiri, Eric W. Klee, Karin Pichler, Elaine C. Davis, Andy Willaert, Odile Boute, Tiffany Busa, Björn Fischer-Zirnsak, Alper Gezdirici, Jamal Ghoumid, Manuel F. Landecho, Shehla Mohammed, Yuri A. Zarate, Maria Ramos-Arroyo, Tom R. Collins, Aude Beyens, Stanislas Lyonnet, Laura Muiño-Mosquera, Uwe Kornak, Marine Vanhomwegen, Helen Michael, Anna Rajeb, Mohammed Zain Seidahmed, Anne De Paepe, Deepthi De Silva, Bert Callewaert, Elisabeth Steichen-Gersdorf, Lut Van Laer, Annekatrien Boel, Anne Legrand, Xavier Jeunemaitre, Lionel Van Maldergem, Katrina Prescott, Mustafa A. Salih, and Julie De Backer
Subjects: medicine.medical_specialty, Arterial tortuosity syndrome, business.industry, Published Erratum, MEDLINE, medicine.disease, Human genetics, 03 medical and health sciences, 0302 clinical medicine, 030220 oncology & carcinogenesis, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, medicine, Intensive care medicine, business, 030217 neurology & neurosurgery, Genetics (clinical)
Abstract: In the published version of this paper the author Neus Baena's name was incorrectly given as Neus Baena Diez. This has now been corrected in both the HTML and PDF versions of the paper.
Published: 2019
Full Text: View/download PDF

11. Bi-allelic Loss-of-Function CACNA1B Mutations in Progressive Epilepsy-Dyskinesia

Author: Kathleen M. Gorman, Esther Meyer, Detelina Grozeva, Egidio Spinelli, Amy McTague, Alba Sanchis-Juan, Keren J. Carss, Emily Bryant, Adi Reich, Amy L. Schneider, Ronit M. Pressler, Michael A. Simpson, Geoff D. Debelle, Evangeline Wassmer, Jenny Morton, Diana Sieciechowicz, Eric Jan-Kamsteeg, Alex R. Paciorkowski, Mary D. King, J. Helen Cross, Annapurna Poduri, Heather C. Mefford, Ingrid E. Scheffer, Tobias B. Haack, Gary McCullagh, John J. Millichap, Gemma L. Carvill, Jill Clayton-Smith, Eamonn R. Maher, F. Lucy Raymond, Manju A. Kurian, Jeremy F. McRae, Stephen Clayton, Tomas W. Fitzgerald, Joanna Kaplanis, Elena Prigmore, Diana Rajan, Alejandro Sifrim, Stuart Aitken, Nadia Akawi, Mohsan Alvi, Kirsty Ambridge, Daniel M. Barrett, Tanya Bayzetinova, Philip Jones, Wendy D. Jones, Daniel King, Netravathi Krishnappa, Laura E. Mason, Tarjinder Singh, Adrian R. Tivey, Munaza Ahmed, Uruj Anjum, Hayley Archer, Ruth Armstrong, Jana Awada, Meena Balasubramanian, Siddharth Banka, Diana Baralle, Angela Barnicoat, Paul Batstone, David Baty, Chris Bennett, Jonathan Berg, Birgitta Bernhard, A. Paul Bevan, Maria Bitner-Glindzicz, Edward Blair, Moira Blyth, David Bohanna, Louise Bourdon, David Bourn, Lisa Bradley, Angela Brady, Simon Brent, Carole Brewer, Kate Brunstrom, David J. Bunyan, John Burn, Natalie Canham, Bruce Castle, Kate Chandler, Elena Chatzimichali, Deirdre Cilliers, Angus Clarke, Susan Clasper, Virginia Clowes, Andrea Coates, Trevor Cole, Irina Colgiu, Amanda Collins, Morag N. Collinson, Fiona Connell, Nicola Cooper, Helen Cox, Lara Cresswell, Gareth Cross, Yanick Crow, Mariella D’Alessandro, Tabib Dabir, Rosemarie Davidson, Sally Davies, Dylan de Vries, John Dean, Charu Deshpande, Gemma Devlin, Abhijit Dixit, Angus Dobbie, Alan Donaldson, Dian Donnai, Deirdre Donnelly, Carina Donnelly, Angela Douglas, Sofia Douzgou, Alexis Duncan, Jacqueline Eason, Sian Ellard, Ian Ellis, Frances Elmslie, Karenza Evans, Sarah Everest, Tina Fendick, Richard Fisher, Frances Flinter, Nicola Foulds, Andrew Fry, Alan Fryer, Carol Gardiner, Lorraine Gaunt, Neeti Ghali, Richard Gibbons, Harinder Gill, Judith Goodship, David Goudie, Emma Gray, Andrew Green, Philip Greene, Lynn Greenhalgh, Susan Gribble, Rachel Harrison, Lucy Harrison, Victoria Harrison, Rose Hawkins, Liu He, Stephen Hellens, Alex Henderson, Sarah Hewitt, Lucy Hildyard, Emma Hobson, Simon Holden, Muriel Holder, Susan Holder, Georgina Hollingsworth, Tessa Homfray, Mervyn Humphreys, Jane Hurst, Ben Hutton, Stuart Ingram, Melita Irving, Lily Islam, Andrew Jackson, Joanna Jarvis, Lucy Jenkins, Diana Johnson, Elizabeth Jones, Dragana Josifova, Shelagh Joss, Beckie Kaemba, Sandra Kazembe, Rosemary Kelsell, Bronwyn Kerr, Helen Kingston, Usha Kini, Esther Kinning, Gail Kirby, Claire Kirk, Emma Kivuva, Alison Kraus, Dhavendra Kumar, V. K. Ajith Kumar, Katherine Lachlan, Wayne Lam, Anne Lampe, Caroline Langman, Melissa Lees, Derek Lim, Cheryl Longman, Gordon Lowther, Sally A. Lynch, Alex Magee, Eddy Maher, Alison Male, Sahar Mansour, Karen Marks, Katherine Martin, Una Maye, Emma McCann, Vivienne McConnell, Meriel McEntagart, Ruth McGowan, Kirsten McKay, Shane McKee, Dominic J. McMullan, Susan McNerlan, Catherine McWilliam, Sarju Mehta, Kay Metcalfe, Anna Middleton, Zosia Miedzybrodzka, Emma Miles, Shehla Mohammed, Tara Montgomery, David Moore, Sian Morgan, Hood Mugalaasi, Victoria Murday, Helen Murphy, Swati Naik, Andrea Nemeth, Louise Nevitt, Ruth Newbury-Ecob, Andrew Norman, Rosie O’Shea, Caroline Ogilvie, Kai-Ren Ong, Soo-Mi Park, Michael J. Parker, Chirag Patel, Joan Paterson, Stewart Payne, Daniel Perrett, Julie Phipps, Daniela T. Pilz, Martin Pollard, Caroline Pottinger, Joanna Poulton, Norman Pratt, Katrina Prescott, Sue Price, Abigail Pridham, Annie Procter, Hellen Purnell, Oliver Quarrell, Nicola Ragge, Raheleh Rahbari, Josh Randall, Julia Rankin, Lucy Raymond, Debbie Rice, Leema Robert, Eileen Roberts, Jonathan Roberts, Paul Roberts, Gillian Roberts, Alison Ross, Elisabeth Rosser, Anand Saggar, Shalaka Samant, Julian Sampson, Richard Sandford, Ajoy Sarkar, Susann Schweiger, Richard Scott, Ingrid Scurr, Ann Selby, Anneke Seller, Cheryl Sequeira, Nora Shannon, Saba Sharif, Charles Shaw-Smith, Emma Shearing, Debbie Shears, Eamonn Sheridan, Ingrid Simonic, Roldan Singzon, Zara Skitt, Audrey Smith, Kath Smith, Sarah Smithson, Linda Sneddon, Miranda Splitt, Miranda Squires, Fiona Stewart, Helen Stewart, Volker Straub, Mohnish Suri, Vivienne Sutton, Ganesh Jawahar Swaminathan, Elizabeth Sweeney, Kate Tatton-Brown, Cat Taylor, Rohan Taylor, Mark Tein, I. Karen Temple, Jenny Thomson, Marc Tischkowitz, Susan Tomkins, Audrey Torokwa, Becky Treacy, Claire Turner, Peter Turnpenny, Carolyn Tysoe, Anthony Vandersteen, Vinod Varghese, Pradeep Vasudevan, Parthiban Vijayarangakannan, Julie Vogt, Emma Wakeling, Sarah Wallwark, Jonathon Waters, Astrid Weber, Diana Wellesley, Margo Whiteford, Sara Widaa, Sarah Wilcox, Emily Wilkinson, Denise Williams, Nicola Williams, Louise Wilson, Geoff Woods, Christopher Wragg, Michael Wright, Laura Yates, Michael Yau, Chris Nellåker, Michael Parker, Helen V. Firth, Caroline F. Wright, David R. FitzPatrick, Jeffrey C. Barrett, Matthew E. Hurles, Saeed Al Turki, Carl Anderson, Richard Anney, Dinu Antony, Maria Soler Artigas, Muhammad Ayub, Senduran Balasubramaniam, Inês Barroso, Phil Beales, Jamie Bentham, Shoumo Bhattacharya, Ewan Birney, Douglas Blackwood, Martin Bobrow, Elena Bochukova, Patrick Bolton, Rebecca Bounds, Chris Boustred, Gerome Breen, Mattia Calissano, Keren Carss, Krishna Chatterjee, Lu Chen, Antonio Ciampi, Sebhattin Cirak, Peter Clapham, Gail Clement, Guy Coates, David Collier, Catherine Cosgrove, Tony Cox, Nick Craddock, Lucy Crooks, Sarah Curran, David Curtis, Allan Daly, Aaron Day-Williams, Ian N.M. Day, Thomas Down, Yuanping Du, Ian Dunham, Sarah Edkins, Peter Ellis, David Evans, Sadaf Faroogi, Ghazaleh Fatemifar, David R. Fitzpatrick, Paul Flicek, James Flyod, A. Reghan Foley, Christopher S. Franklin, Marta Futema, Louise Gallagher, Matthias Geihs, Daniel Geschwind, Heather Griffin, Xueqin Guo, Xiaosen Guo, Hugh Gurling, Deborah Hart, Audrey Hendricks, Peter Holmans, Bryan Howie, Liren Huang, Tim Hubbard, Steve E. Humphries, Pirro Hysi, David K. Jackson, Yalda Jamshidi, Tian Jing, Chris Joyce, Jane Kaye, Thomas Keane, Julia Keogh, John Kemp, Karen Kennedy, Anja Kolb-Kokocinski, Genevieve Lachance, Cordelia Langford, Daniel Lawson, Irene Lee, Monkol Lek, Jieqin Liang, Hong Lin, Rui Li, Yingrui Li, Ryan Liu, Jouko Lönnqvist, Margarida Lopes, Valentina Iotchkova, Daniel MacArthur, Jonathan Marchini, John Maslen, Mangino Massimo, Iain Mathieson, Gaëlle Marenne, Peter McGuffin, Andrew McIntosh, Andrew G. McKechanie, Andrew McQuillin, Sarah Metrustry, Hannah Mitchison, Alireza Moayyeri, James Morris, Francesco Muntoni, Kate Northstone, Michael O'Donnovan, Alexandros Onoufriadis, Stephen O'Rahilly, Karim Oualkacha, Michael J. Owen, Aarno Palotie, Kalliope Panoutsopoulou, Victoria Parker, Jeremy R. Parr, Lavinia Paternoster, Tiina Paunio, Felicity Payne, Olli Pietilainen, Vincent Plagnol, Lydia Quaye, Michael A. Quail, Karola Rehnström, Susan Ring, Graham R.S. Ritchie, Nicola Roberts, David B. Savage, Peter Scambler, Stephen Schiffels, Miriam Schmidts, Nadia Schoenmakers, Robert K. Semple, Eva Serra, Sally I. Sharp, So-Youn Shin, David Skuse, Kerrin Small, Lorraine Southam, Olivera Spasic-Boskovic, David St Clair, Jim Stalker, Elizabeth Stevens, Beate St Pourcian, Jianping Sun, Jaana Suvisaari, Ionna Tachmazidou, Martin D. Tobin, Ana Valdes, Margriet Van Kogelenberg, Peter M. Visscher, Louise V. Wain, James T.R. Walters, Guangbiao Wang, Jun Wang, Yu Wang, Kirsten Ward, Elanor Wheeler, Tamieka Whyte, Hywel Williams, Kathleen A. Williamson, Crispian Wilson, Kim Wong, ChangJiang Xu, Jian Yang, Fend Zhang, Pingbo Zhang, Timothy Aitman, Hana Alachkar, Sonia Ali, Louise Allen, David Allsup, Gautum Ambegaonkar, Julie Anderson, Richard Antrobus, Gavin Arno, Gururaj Arumugakani, Sofie Ashford, William Astle, Antony Attwood, Steve Austin, Chiara Bacchelli, Tamam Bakchoul, Tadbir K. Bariana, Helen Baxendale, David Bennett, Claire Bethune, Shahnaz Bibi, Marta Bleda, Harm Boggard, Paula Bolton-Maggs, Claire Booth, John R. Bradley, Angie Brady, Matthew Brown, Michael Browning, Christine Bryson, Siobhan Burns, Paul Calleja, Jenny Carmichael, Mark Caulfield, Elizabeth Chalmers, Anita Chandra, Patrick Chinnery, Manali Chitre, Colin Church, Emma Clement, Naomi Clements-Brod, Gerry Coghlan, Peter Collins, Nichola Cooper, Amanda Creaser-Myers, Rosa DaCosta, Louise Daugherty, Sophie Davies, John Davis, Minka De Vries, Patrick Deegan, Sri V.V. Deevi, Lisa Devlin, Eleanor Dewhurst, Rainer Doffinger, Natalie Dormand, Elizabeth Drewe, David Edgar, William Egner, Wendy N. Erber, Marie Erwood, Tamara Everington, Remi Favier, Helen Firth, Debra Fletcher, James C. Fox, Amy Frary, Kathleen Freson, Bruce Furie, Abigail Furnell, Daniel Gale, Alice Gardham, Michael Gattens, Pavandeep K. Ghataorhe, Rohit Ghurye, Simon Gibbs, Kimberley Gilmour, Paul Gissen, Sarah Goddard, Keith Gomez, Pavel Gordins, Stefan Gräf, Daniel Greene, Alan Greenhalgh, Andreas Greinacher, Sofia Grigoriadou, Scott Hackett, Charaka Hadinnapola, Rosie Hague, Matthias Haimel, Csaba Halmagyi, Tracey Hammerton, Daniel Hart, Grant Hayman, Johan W.M. Heemskerk, Robert Henderson, Anke Hensiek, Yvonne Henskens, Archana Herwadkar, Fengyuan Hu, Aarnoud Huissoon, Marc Humbert, Roger James, Stephen Jolles, Rashid Kazmi, David Keeling, Peter Kelleher, Anne M. Kelly, Fiona Kennedy, David Kiely, Nathalie Kingston, Ania Koziell, Deepa Krishnakumar, Taco W. Kuijpers, Dinakantha Kumararatne, Manju Kurian, Michael A. Laffan, Michele P. Lambert, Hana Lango Allen, Allan Lawrie, Sara Lear, Claire Lentaigne, Ri Liesner, Rachel Linger, Hilary Longhurst, Lorena Lorenzo, Rajiv Machado, Rob Mackenzie, Robert MacLaren, Eamonn Maher, Jesmeen Maimaris, Sarah Mangles, Ania Manson, Rutendo Mapeta, Hugh S. Markus, Jennifer Martin, Larahmie Masati, Mary Mathias, Vera Matser, Anna Maw, Elizabeth McDermott, Coleen McJannet, Stuart Meacham, Sharon Meehan, Karyn Megy, Michel Michaelides, Carolyn M. Millar, Shahin Moledina, Anthony Moore, Nicholas Morrell, Andrew Mumford, Sai Murng, Elaine Murphy, Sergey Nejentsev, Sadia Noorani, Paquita Nurden, Eric Oksenhendler, Willem H. Ouwehand, Sofia Papadia, Alasdair Parker, John Pasi, Chris Patch, Jeanette Payne, Andrew Peacock, Kathelijne Peerlinck, Christopher J. Penkett, Joanna Pepke-Zaba, David J. Perry, Val Pollock, Gary Polwarth, Mark Ponsford, Waseem Qasim, Isabella Quinti, Stuart Rankin, Karola Rehnstrom, Evan Reid, Christopher J. Rhodes, Michael Richards, Sylvia Richardson, Alex Richter, Irene Roberts, Matthew Rondina, Catherine Roughley, Kevin Rue-Albrecht, Crina Samarghitean, Saikat Santra, Ravishankar Sargur, Sinisa Savic, Sol Schulman, Harald Schulze, Marie Scully, Suranjith Seneviratne, Carrock Sewell, Olga Shamardina, Debbie Shipley, Ilenia Simeoni, Suthesh Sivapalaratnam, Kenneth Smith, Aman Sohal, Laura Southgate, Simon Staines, Emily Staples, Hans Stauss, Penelope Stein, Jonathan Stephens, Kathleen Stirrups, Sophie Stock, Jay Suntharalingam, R. Campbell Tait, Kate Talks, Yvonne Tan, Jecko Thachil, James Thaventhiran, Ellen Thomas, Moira Thomas, Dorothy Thompson, Adrian Thrasher, Catherine Titterton, Cheng-Hock Toh, Mark Toshner, Carmen Treacy, Richard Trembath, Salih Tuna, Wojciech Turek, Ernest Turro, Chris Van Geet, Marijke Veltman, Julie von Ziegenweldt, Anton Vonk Noordegraaf, Ivy Wanjiku, Timothy Q. Warner, Hugh Watkins, Andrew Webster, Steve Welch, Sarah Westbury, John Wharton, Deborah Whitehorn, Martin Wilkins, Lisa Willcocks, Catherine Williamson, Geoffrey Woods, John Wort, Nigel Yeatman, Patrick Yong, Tim Young, Ping Yu, Paediatric Infectious Diseases / Rheumatology / Immunology, ARD - Amsterdam Reproduction and Development, Pediatric surgery, APH - Aging & Later Life, Molecular cell biology and Immunology, Pulmonary medicine, ACS - Pulmonary hypertension & thrombosis, and APH - Quality of Care
Subjects: 0301 basic medicine, Male, Adolescent, Loss of Heterozygosity, Context (language use), Postnatal microcephaly, Neurotransmission, medicine.disease_cause, Bioinformatics, Synaptic Transmission, Loss of heterozygosity, 03 medical and health sciences, Epilepsy, 0302 clinical medicine, Calcium Channels, N-Type, Report, Genetics, medicine, Humans, Child, Genetics (clinical), Mutation, Dyskinesias, business.industry, Infant, medicine.disease, Hypotonia, Pedigree, 030104 developmental biology, Dyskinesia, Child, Preschool, Calcium, Female, medicine.symptom, business, 030217 neurology & neurosurgery
Abstract: © 2019 American Society of Human Genetics The occurrence of non-epileptic hyperkinetic movements in the context of developmental epileptic encephalopathies is an increasingly recognized phenomenon. Identification of causative mutations provides an important insight into common pathogenic mechanisms that cause both seizures and abnormal motor control. We report bi-allelic loss-of-function CACNA1B variants in six children from three unrelated families whose affected members present with a complex and progressive neurological syndrome. All affected individuals presented with epileptic encephalopathy, severe neurodevelopmental delay (often with regression), and a hyperkinetic movement disorder. Additional neurological features included postnatal microcephaly and hypotonia. Five children died in childhood or adolescence (mean age of death: 9 years), mainly as a result of secondary respiratory complications. CACNA1B encodes the pore-forming subunit of the pre-synaptic neuronal voltage-gated calcium channel Cav2.2/N-type, crucial for SNARE-mediated neurotransmission, particularly in the early postnatal period. Bi-allelic loss-of-function variants in CACNA1B are predicted to cause disruption of Ca2+ influx, leading to impaired synaptic neurotransmission. The resultant effect on neuronal function is likely to be important in the development of involuntary movements and epilepsy. Overall, our findings provide further evidence for the key role of Cav2.2 in normal human neurodevelopment.
Published: 2018

12. Arterial tortuosity syndrome: 40 new families and literature review

Author: Uwe Kornak, Fabienne Giuliano, Aude Beyens, Mustafa A. Salih, Massimiliano Rossi, Marine Vanhomwegen, Lut Van Laer, Fahrettin Uysal, Koenraad Devriendt, David R. Deyle, Mohammed Z. Haider, Elise Schaefer, Tom R. Collins, Annekatrien Boel, Mazen Al-Essa, Elaine C. Davis, Elisabeth Steichen-Gersdorf, Ergun Cil, Eudice E. Fontenot, Andy Willaert, Bart Loeys, Eric W. Klee, Björn Fischer-Zirnsak, Joshua S. Hardin, Sophie Dupuis-Girod, N Canham, Majed Dasouki, Harry C. Dietz, Laura Muiño-Mosquera, Yuri A. Zarate, Karin Pichler, Xavier Jeunemaitre, Neus Baena Diez, Maria Ramos-Arroyo, Damien Bonnet, Paul Coucke, Waheed Al-Manea, Anne De Paepe, Tiffany Busa, Anna Rajeb, Shehla Mohammed, Odile Boute, Sofie De Schepper, Mohammed Zain Seidahmed, Juliette Albuisson, Andrea Taylor, Deepthi De Silva, Inge De Wandele, Helen Michael, Margot A. Cousin, Sehime Gulsun Temel, Pamela Moceri, Julie De Backer, Lionel Van Maldergem, Stanislas Lyonnet, Özlem M. Bostan, Katrina Prescott, Bert Callewaert, Anne Legrand, David Warner, Sheela Nampoothiri, Alper Gezdirici, Jamal Ghoumid, and Manuel F. Landecho
Subjects: 0301 basic medicine, Marfan syndrome, Adult, Joint Instability, Male, Connective Tissue Disorder, Pathology, medicine.medical_specialty, Arterial tortuosity syndrome, Adolescent, Vascular Malformations, Biopsy, Perforation (oil well), Glucose Transport Proteins, Facilitative, Smad2 Protein, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, Aneurysm, Transforming Growth Factor beta, medicine, Humans, Diaphragmatic hernia, Child, Genetics (clinical), Vascular tissue, Aorta, Skin, Hernia, Diaphragmatic, Respiratory Distress Syndrome, Newborn, biology, business.industry, Connective Tissue Growth Factor, Infant, Skin Diseases, Genetic, Arteries, medicine.disease, 3. Good health, Pedigree, 030104 developmental biology, Child, Preschool, Mutation, biology.protein, Female, Human medicine, business, Elastin
Abstract: PurposeWe delineate the clinical spectrum and describe the histology in arterial tortuosity syndrome (ATS), a rare connective tissue disorder characterized by tortuosity of the large and medium-sized arteries, caused by mutations in SLC2A10.MethodsWe retrospectively characterized 40 novel ATS families (50 patients) and reviewed the 52 previously reported patients. We performed histology and electron microscopy (EM) on skin and vascular biopsies and evaluated TGF-β signaling with immunohistochemistry for pSMAD2 and CTGF.ResultsStenoses, tortuosity, and aneurysm formation are widespread occurrences. Severe but rare vascular complications include early and aggressive aortic root aneurysms, neonatal intracranial bleeding, ischemic stroke, and gastric perforation. Thus far, no reports unequivocally document vascular dissections or ruptures. Of note, diaphragmatic hernia and infant respiratory distress syndrome (IRDS) are frequently observed. Skin and vascular biopsies show fragmented elastic fibers (EF) and increased collagen deposition. EM of skin EF shows a fragmented elastin core and a peripheral mantle of microfibrils of random directionality. Skin and end-stage diseased vascular tissue do not indicate increased TGF-β signaling.ConclusionOur findings warrant attention for IRDS and diaphragmatic hernia, close monitoring of the aortic root early in life, and extensive vascular imaging afterwards. EM on skin biopsies shows disease-specific abnormalities.GENETICS in MEDICINE advance online publication, 11 January 2018; doi:10.1038/gim.2017.253. ispartof: Genetics in Medicine vol:20 issue:10 pages:1236-1245 ispartof: location:United States status: published
Published: 2018
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13. Histone Lysine Methylases and Demethylases in the Landscape of Human Developmental Disorders

Author: Víctor Faundes, William G. Newman, Laura Bernardini, Natalie Canham, Jill Clayton-Smith, Bruno Dallapiccola, Sally J. Davies, Michelle K. Demos, Amy Goldman, Harinder Gill, Rachel Horton, Bronwyn Kerr, Dhavendra Kumar, Anna Lehman, Shane McKee, Jenny Morton, Michael J. Parker, Julia Rankin, Lisa Robertson, I. Karen Temple, Siddharth Banka, Shelin Adam, Christèle du Souich, Alison M. Elliott, Jill Mwenifumbo, Tanya N. Nelson, Clara van Karnebeek, Jan M. Friedman, Jeremy F. McRae, Stephen Clayton, Tomas W. Fitzgerald, Joanna Kaplanis, Elena Prigmore, Diana Rajan, Alejandro Sifrim, Stuart Aitken, Nadia Akawi, Mohsan Alvi, Kirsty Ambridge, Daniel M. Barrett, Tanya Bayzetinova, Philip Jones, Wendy D. Jones, Daniel King, Netravathi Krishnappa, Laura E. Mason, Tarjinder Singh, Adrian R. Tivey, Munaza Ahmed, Uruj Anjum, Hayley Archer, Ruth Armstrong, Jana Awada, Meena Balasubramanian, Diana Baralle, Angela Barnicoat, Paul Batstone, David Baty, Chris Bennett, Jonathan Berg, Birgitta Bernhard, A. Paul Bevan, Maria Bitner-Glindzicz, Edward Blair, Moira Blyth, David Bohanna, Louise Bourdon, David Bourn, Lisa Bradley, Angela Brady, Simon Brent, Carole Brewer, Kate Brunstrom, David J. Bunyan, John Burn, Bruce Castle, Kate Chandler, Elena Chatzimichali, Deirdre Cilliers, Angus Clarke, Susan Clasper, Virginia Clowes, Andrea Coates, Trevor Cole, Irina Colgiu, Amanda Collins, Morag N. Collinson, Fiona Connell, Nicola Cooper, Helen Cox, Lara Cresswell, Gareth Cross, Yanick Crow, Mariella D’Alessandro, Tabib Dabir, Rosemarie Davidson, Sally Davies, Dylan de Vries, John Dean, Charu Deshpande, Gemma Devlin, Abhijit Dixit, Angus Dobbie, Alan Donaldson, Dian Donnai, Deirdre Donnelly, Carina Donnelly, Angela Douglas, Sofia Douzgou, Alexis Duncan, Jacqueline Eason, Sian Ellard, Ian Ellis, Frances Elmslie, Karenza Evans, Sarah Everest, Tina Fendick, Richard Fisher, Frances Flinter, Nicola Foulds, Andrew Fry, Alan Fryer, Carol Gardiner, Lorraine Gaunt, Neeti Ghali, Richard Gibbons, Judith Goodship, David Goudie, Emma Gray, Andrew Green, Philip Greene, Lynn Greenhalgh, Susan Gribble, Rachel Harrison, Lucy Harrison, Victoria Harrison, Rose Hawkins, Liu He, Stephen Hellens, Alex Henderson, Sarah Hewitt, Lucy Hildyard, Emma Hobson, Simon Holden, Muriel Holder, Susan Holder, Georgina Hollingsworth, Tessa Homfray, Mervyn Humphreys, Jane Hurst, Ben Hutton, Stuart Ingram, Melita Irving, Lily Islam, Andrew Jackson, Joanna Jarvis, Lucy Jenkins, Diana Johnson, Elizabeth Jones, Dragana Josifova, Shelagh Joss, Beckie Kaemba, Sandra Kazembe, Rosemary Kelsell, Helen Kingston, Usha Kini, Esther Kinning, Gail Kirby, Claire Kirk, Emma Kivuva, Alison Kraus, V.K. Ajith Kumar, Katherine Lachlan, Wayne Lam, Anne Lampe, Caroline Langman, Melissa Lees, Derek Lim, Cheryl Longman, Gordon Lowther, Sally A. Lynch, Alex Magee, Eddy Maher, Alison Male, Sahar Mansour, Karen Marks, Katherine Martin, Una Maye, Emma McCann, Vivienne McConnell, Meriel McEntagart, Ruth McGowan, Kirsten McKay, Dominic J. McMullan, Susan McNerlan, Catherine McWilliam, Sarju Mehta, Kay Metcalfe, Anna Middleton, Zosia Miedzybrodzka, Emma Miles, Shehla Mohammed, Tara Montgomery, David Moore, Sian Morgan, Hood Mugalaasi, Victoria Murday, Helen Murphy, Swati Naik, Andrea Nemeth, Louise Nevitt, Ruth Newbury-Ecob, Andrew Norman, Rosie O’Shea, Caroline Ogilvie, Kai-Ren Ong, Soo-Mi Park, Chirag Patel, Joan Paterson, Stewart Payne, Daniel Perrett, Julie Phipps, Daniela T. Pilz, Martin Pollard, Caroline Pottinger, Joanna Poulton, Norman Pratt, Katrina Prescott, Sue Price, Abigail Pridham, Annie Procter, Hellen Purnell, Oliver Quarrell, Nicola Ragge, Raheleh Rahbari, Josh Randall, Lucy Raymond, Debbie Rice, Leema Robert, Eileen Roberts, Jonathan Roberts, Paul Roberts, Gillian Roberts, Alison Ross, Elisabeth Rosser, Anand Saggar, Shalaka Samant, Julian Sampson, Richard Sandford, Ajoy Sarkar, Susann Schweiger, Richard Scott, Ingrid Scurr, Ann Selby, Anneke Seller, Cheryl Sequeira, Nora Shannon, Saba Sharif, Charles Shaw-Smith, Emma Shearing, Debbie Shears, Eamonn Sheridan, Ingrid Simonic, Roldan Singzon, Zara Skitt, Audrey Smith, Kath Smith, Sarah Smithson, Linda Sneddon, Miranda Splitt, Miranda Squires, Fiona Stewart, Helen Stewart, Volker Straub, Mohnish Suri, Vivienne Sutton, Ganesh Jawahar Swaminathan, Elizabeth Sweeney, Kate Tatton-Brown, Cat Taylor, Rohan Taylor, Mark Tein, Jenny Thomson, Marc Tischkowitz, Susan Tomkins, Audrey Torokwa, Becky Treacy, Claire Turner, Peter Turnpenny, Carolyn Tysoe, Anthony Vandersteen, Vinod Varghese, Pradeep Vasudevan, Parthiban Vijayarangakannan, Julie Vogt, Emma Wakeling, Sarah Wallwark, Jonathon Waters, Astrid Weber, Diana Wellesley, Margo Whiteford, Sara Widaa, Sarah Wilcox, Emily Wilkinson, Denise Williams, Nicola Williams, Louise Wilson, Geoff Woods, Christopher Wragg, Michael Wright, Laura Yates, Michael Yau, Chris Nellåker, Michael Parker, Helen V. Firth, Caroline F. Wright, David R. FitzPatrick, Jeffrey C. Barrett, and Matthew E. . Hurles
Subjects: 0301 basic medicine, ASH1L, Male, Methyltransferase, Adolescent, Histone lysine methylation, KMT5B, Developmental Disabilities, Haploinsufficiency, Biology, Compound heterozygosity, histone lysine methyltransferase, Chromatin remodeling, chromatin remodeling, 03 medical and health sciences, histone lysine demethylase, Report, Genetics, Humans, Child, Genetics (clinical), Regulation of gene expression, Histone Demethylases, Developmental disorders, KMT2C, KMT2B, Histone-Lysine N-Methyltransferase, 030104 developmental biology, Histone, Overgrowth syndrome, Child, Preschool, Mutation, biology.protein, KDM5B, Female
Abstract: Histone lysine methyltransferases (KMTs) and demethylases (KDMs) underpin gene regulation. Here we demonstrate that variants causing haploinsufficiency of KMTs and KDMs are frequently encountered in individuals with developmental disorders. Using a combination of human variation databases and existing animal models, we determine 22 KMTs and KDMs as additional candidates for dominantly inherited developmental disorders. We show that KMTs and KDMs that are associated with, or are candidates for, dominant developmental disorders tend to have a higher level of transcription, longer canonical transcripts, more interactors, and a higher number and more types of post-translational modifications than other KMT and KDMs. We provide evidence to firmly associate KMT2C, ASH1L, and KMT5B haploinsufficiency with dominant developmental disorders. Whereas KMT2C or ASH1L haploinsufficiency results in a predominantly neurodevelopmental phenotype with occasional physical anomalies, KMT5B mutations cause an overgrowth syndrome with intellectual disability. We further expand the phenotypic spectrum of KMT2B-related disorders and show that some individuals can have severe developmental delay without dystonia at least until mid-childhood. Additionally, we describe a recessive histone lysine-methylation defect caused by homozygous or compound heterozygous KDM5B variants and resulting in a recognizable syndrome with developmental delay, facial dysmorphism, and camptodactyly. Collectively, these results emphasize the significance of histone lysine methylation in normal human development and the importance of this process in human developmental disorders. Our results demonstrate that systematic clinically oriented pathway-based analysis of genomic data can accelerate the discovery of rare genetic disorders.
Published: 2017

14. Heterozygous Loss-of-Function Mutations in DLL4 Cause Adams-Oliver Syndrome

Author: Sheila Clarke, Emilia K. Bijlsma, Richard C. Trembath, Laura Southgate, Anna Lehman, Lut Van Laer, Sander J A Beekmans, Anna-Barbara Stittrich, Appolonia Helderman-Van Den Enden, Claudia A. L. Ruivenkamp, Bart Loeys, Bert B.A. de Vries, Josephina A.N. Meester, Wim Wuyts, Gustavo Glusman, Martin Zenker, Nicolette S. den Hollander, Maja Sukalo, Hanka Venselaar, Peter Itin, Jared C. Roach, Millan S. Patel, Katrina Prescott, Joke B. G. M. Verheij, Klinische Genetica, RS: CARIM - R2 - Cardiac function and failure, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, Genetica & Celbiologie, RS: CARIM School for Cardiovascular Diseases, Plastic, Reconstructive and Hand Surgery, and Other Research
Subjects: ANOMALIES, Heterozygote, Molecular Sequence Data, Notch signaling pathway, Limb Deformities, Congenital, Other Research Radboud Institute for Molecular Life Sciences [Radboudumc 0], Context (language use), Biology, medicine.disease_cause, Ectodermal Dysplasia, Genetics, medicine, Missense mutation, Humans, Genetics(clinical), Amino Acid Sequence, Gene, Genetics (clinical), Loss function, Adaptor Proteins, Signal Transducing, Mutation, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Base Sequence, Receptors, Notch, RBPJ, Calcium-Binding Proteins, DEFECTS, Sequence Analysis, DNA, DOCK6, medicine.disease, Pedigree, Scalp Dermatoses, APLASIA-CUTIS-CONGENITA, cardiovascular system, Intercellular Signaling Peptides and Proteins, Human medicine, Nanomedicine Radboud Institute for Molecular Life Sciences [Radboudumc 19], VASCULAR DEVELOPMENT, Adams–Oliver syndrome, Signal Transduction
Abstract: Contains fulltext : 152973.pdf (Publisher’s version ) (Closed access) Adams-Oliver syndrome (AOS) is a rare developmental disorder characterized by the presence of aplasia cutis congenita (ACC) of the scalp vertex and terminal limb-reduction defects. Cardiovascular anomalies are also frequently observed. Mutations in five genes have been identified as a cause for AOS prior to this report. Mutations in EOGT and DOCK6 cause autosomal-recessive AOS, whereas mutations in ARHGAP31, RBPJ, and NOTCH1 lead to autosomal-dominant AOS. Because RBPJ, NOTCH1, and EOGT are involved in NOTCH signaling, we hypothesized that mutations in other genes involved in this pathway might also be implicated in AOS pathogenesis. Using a candidate-gene-based approach, we prioritized DLL4, a critical NOTCH ligand, due to its essential role in vascular development in the context of cardiovascular features in AOS-affected individuals. Targeted resequencing of the DLL4 gene with a custom enrichment panel in 89 independent families resulted in the identification of seven mutations. A defect in DLL4 was also detected in two families via whole-exome or genome sequencing. In total, nine heterozygous mutations in DLL4 were identified, including two nonsense and seven missense variants, the latter encompassing four mutations that replace or create cysteine residues, which are most likely critical for maintaining structural integrity of the protein. Affected individuals with DLL4 mutations present with variable clinical expression with no emerging genotype-phenotype correlations. Our findings demonstrate that DLL4 mutations are an additional cause of autosomal-dominant AOS or isolated ACC and provide further evidence for a key role of NOTCH signaling in the etiology of this disorder.
Published: 2015

15. Comprehensive Clinical and Molecular Analysis of 12 Families with Type 1 Recessive Cutis Laxa

Author: Sofie Symoens, Bert Callewaert, Jean-Luc Bresson, Sahar Mansour, Chi-Ting Su, Meghan K. Mac Neal, Elaine C. Davis, Joseph G. H. Lee, Ketil Heimdal, Gérald Pierard, Katrina Prescott, Salome De Almeida, Paul Coucke, Anne De Paepe, Tim Van Damme, Bianca Schulz, Zsolt Urban, Uwe Kornak, Aicha Salhi, Lionel Van Maldergem, Olivier Vanakker, Sheila Unger, Philip Vlummens, Fransiska Malfait, Maria E. Gosendi, Harald Gaspar, Frank C. Sciurba, and Suneeta Madan-Khetarpal
Subjects: Male, Adolescent, Blotting, Western, Gene Expression, Consanguinity, Biology, medicine.disease_cause, Cutis Laxa, Article, Young Adult, Mutant protein, Genetics, medicine, Humans, Missense mutation, Child, Genetics (clinical), Skin, Family Health, Extracellular Matrix Proteins, Mutation, Base Sequence, Reverse Transcriptase Polymerase Chain Reaction, Infant, Sequence Analysis, DNA, medicine.disease, Molecular biology, Phenotype, Pedigree, Microscopy, Electron, Latent TGF-beta Binding Proteins, Pulmonary Emphysema, Child, Preschool, FBLN5, Female, Fibrillin, Cutis laxa
Abstract: Autosomal recessive cutis laxa type I (ARCL type I) is characterized by generalized cutis laxa with pulmonary emphysema and/or vascular complications. Rarely, mutations can be identified in FBLN4 or FBLN5. Recently, LTBP4 mutations have been implicated in a similar phenotype. Studying FBLN4, FBLN5, and LTBP4 in 12 families with ARCL type I, we found bi-allelic FBLN5 mutations in two probands, whereas nine probands harbored biallelic mutations in LTBP4. FBLN5 and LTBP4 mutations cause a very similar phenotype associated with severe pulmonary emphysema, in the absence of vascular tortuosity or aneurysms. Gastrointestinal and genitourinary tract involvement seems to be more severe in patients with LTBP4 mutations. Functional studies showed that most premature termination mutations in LTBP4 result in severely reduced mRNA and protein levels. This correlated with increased transforming growth factor-beta (TGFβ) activity. However, one mutation, c.4127dupC, escaped nonsense-mediated decay. The corresponding mutant protein (p.Arg1377Alafs(*) 27) showed reduced colocalization with fibronectin, leading to an abnormal morphology of microfibrils in fibroblast cultures, while retaining normal TGFβ activity. We conclude that LTBP4 mutations cause disease through both loss of function and gain of function mechanisms.
Published: 2012

16. Whole-Exome Sequencing Identifies Mutations in GPR179 Leading to Autosomal-Recessive Complete Congenital Stationary Night Blindness

Author: Aurore Germain, Veselina Moskova-Doumanova, Guylène Le Meur, Francis L. Munier, Christina Zeitz, Kim T. Nguyen-Ba-Charvet, Jean-Paul Saraiva, Bernd Wissinger, Hoan Nguyen, Eberhart Zrenner, Elise Orhan, Samuel G. Jacobson, Aline Antonio, Daniel F. Schorderet, Agnes B. Renner, Susanne Kohl, Wolfgang Berger, Sabine Defoort-Dhellemmes, Christian P. Hamel, Dror Sharon, Françoise Meire, Katrina Prescott, Bart P. Leroy, Dominique Bonneau, Ian Simmons, Ulrich Kellner, Hélène Dollfus, Thierry Léveillard, Xavier Zanlonghi, Christelle Michiels, Olivier Poch, Odile Lecompte, Robert K. Koenekoop, Isabelle Drumare, Marie-Elise Lancelot, Thomy de Ravel, Birgit Lorenz, Vernon Long, Christoph Friedburg, Markus N. Preising, Tien D. Luu, Mélanie Letexier, Eyal Banin, Elfride De Baere, Kinga M. Bujakowska, José-Alain Sahel, Charlotte M. Poloschek, Isabelle Audo, Claire Audier, Shomi S. Bhattacharya, Ingele Casteels, Saddek Mohand-Said, Institut des Maladies Rares (France), Retina France, Fondation Voir et Entendre, Agence Nationale de la Recherche (France), Foundation Fighting Blindness, Région Ile-de-France, Association Française contre les Myopathies, National Institutes of Health (US), University of Zurich, Zeitz, Christina, Clinical sciences, and Medical Genetics
Subjects: Gamma-Subunit, Male, Electroretinography/methods, Genotyping Techniques, Phenotypic Impact, Receptors, Metabotropic Glutamate, Receptors, G-Protein-Coupled, 11124 Institute of Medical Molecular Genetics, 0302 clinical medicine, Cone dystrophy, Night Blindness, Myopia, Missense mutation, Genetics(clinical), Cone Dystrophy, Exome, Genetics (clinical), Exome sequencing, Sanger sequencing, Congenital stationary night blindness, Genetics, 0303 health sciences, Muscular-Dystrophy, Channel Subunit, Bipolar Cells, Homozygote, Genotyping Techniques/methods, Receptors, Metabotropic Glutamate/genetics, Eye Diseases, Hereditary, Genetic Diseases, X-Linked, 3. Good health, Phenotype, Mouse Retina, symbols, Proteoglycans, Female, Erratum, Myopia/genetics, Heterozygote, 2716 Genetics (clinical), mice, TRPM Cation Channels, 610 Medicine & health, Biology, Night Blindness/genetics, Polymorphism, Single Nucleotide, Retina, Frameshift mutation, Genetic Heterogeneity, 03 medical and health sciences, symbols.namesake, 1311 Genetics, Report, Electroretinography, medicine, Animals, Humans, Alleles, TRPM1, 030304 developmental biology, Retina/abnormalities, Protein, medicine.disease, Protein Structure, Tertiary, Proteoglycans/genetics, Cgmp-Phosphodiesterase, Complete Form, TRPM Cation Channels/genetics, 030221 ophthalmology & optometry, 570 Life sciences, biology, sense organs, mutation, Receptors, G-Protein-Coupled/genetics, exome, 030217 neurology & neurosurgery
Abstract: Audo, Isabelle, et al., Congenital stationary night blindness (CSNB) is a heterogeneous retinal disorder characterized by visual impairment under low light conditions. This disorder is due to a signal transmission defect from rod photoreceptors to adjacent bipolar cells in the retina. Two forms can be distinguished clinically, complete CSNB (cCSNB) or incomplete CSNB; the two forms are distinguished on the basis of the affected signaling pathway. Mutations in NYX, GRM6, and TRPM1, expressed in the outer plexiform layer (OPL) lead to disruption of the ON-bipolar cell response and have been seen in patients with cCSNB. Whole-exome sequencing in cCSNB patients lacking mutations in the known genes led to the identification of a homozygous missense mutation (c.1807C>T [p.His603Tyr]) in one consanguineous autosomal-recessive cCSNB family and a homozygous frameshift mutation in GPR179 (c.278delC [p.Pro93Glnfs57]) in a simplex male cCSNB patient. Additional screening with Sanger sequencing of 40 patients identified three other cCSNB patients harboring additional allelic mutations in GPR179. Although, immunhistological studies revealed Gpr179 in the OPL in wild-type mouse retina, Gpr179 did not colocalize with specific ON-bipolar markers. Interestingly, Gpr179 was highly concentrated in horizontal cells and Müller cell endfeet. The involvement of these cells in cCSNB and the specific function of GPR179 remain to be elucidated., The project was supported by GIS-maladies rares (C.Z.), Retina France ([part of the 100-Exome Project] I.A., C.P.H., J.-A.S., H.D. and C.Z.), Foundation Voir et Entendre (C.Z.), Agence National de la Recherche (S.S.B), Foundation Fighting Blindness (FFB) grant CD-CL-0808-0466-CHNO (I.A. and the CIC503, recognized as an FFB center), FFB grant C-CMM-0907-0428-INSERM04, Ville de Paris and Région Ille de France, the French Association against Myopathy (AFM) grant KBM-14390 (O.P.), and National Institutes of Health grant 1R01EY020902-01A1 (K.B.).
Published: 2012

17. PORCNmutations in focal dermal hypoplasia: coping with lethality

Author: Kaatje Heinelt, Juliane Strien, Annalisa Patrizi, María del Carmen Boente, Karl-Heinz Grzeschik, Yasemin Alanay, Nicolas Chassaing, Ben C.J. Hamel, Ingo Lohrisch, Marie Eleanore O. Nicolas, G. Eda Utine, Ian O. Ellis, Carlo Marcelis, Jeffrey A. Ascherman, Katrina Prescott, Bart Loeys, Arne König, Mauro Paradisi, Christina Raissa I. Francisco, Wolfgang Kastrup, Frank Oeffner, Patricia Silvia Della Giovanna, Paul J. Benke, Dorothea Bornholdt, Maria Piccione, Yasmin Mehraein, Cristina Has, Andreas R. Janecke, Ineke van der Burgt, Bettina Prager, Dana Pagliarini, Hildegunde Piza-Katzer, Marc S. Zeller, and Rudolf Happle
Subjects: Genetics, Mutation, Genetic counseling, Nonsense mutation, Biology, medicine.disease_cause, medicine.disease, Focal dermal hypoplasia, PORCN, medicine, Missense mutation, Skewed X-inactivation, Genetics (clinical), Loss function
Abstract: The X-linked dominant trait focal dermal hypoplasia (FDH, Goltz syndrome) is a developmental defect with focal distribution of affected tissues due to a block of Wnt signal transmission from cells carrying a detrimental PORCN mutation on an active X-chromosome. Molecular characterization of 24 unrelated patients from different ethnic backgrounds revealed 23 different mutations of the PORCN gene in Xp11.23. Three were microdeletions eliminating PORCN and encompassing neighboring genes such as EBP, the gene associated with Conradi-Hunermann-Happle syndrome (CDPX2). 12/24 patients carried nonsense mutations resulting in loss of function. In one case a canonical splice acceptor site was mutated, and 8 missense mutations exchanged highly conserved amino acids. FDH patients overcome the consequences of potentially lethal X-chromosomal mutations by extreme skewing of X-chromosome inactivation in females, enabling transmission of the trait in families, or by postzygotic mosaicism both in male and female individuals. Molecular characterization of the PORCN mutations in cases diagnosed as Goltz syndrome is particularly relevant for genetic counseling of patients and their families since no functional diagnostic test is available and carriers of the mutation might otherwise be overlooked due to considerable phenotypic variability associated with the mosaic status.
Published: 2009

18. Focal segmental glomerulosclerosis in a female patient with Donnai–Barrow syndrome

Author: Mauro Longoni, Shelagh Joss, Katrina Prescott, Ihab Sakr Shaheen, Meaghan K. Russell, and Eric Finlay
Subjects: Pathology, medicine.medical_specialty, Hernia, Craniofacial abnormality, Hearing loss, Pathology and Forensic Medicine, Craniofacial Abnormalities, Focal segmental glomerulosclerosis, Female patient, medicine, Humans, Eye Abnormalities, Child, Hearing Loss, Genetics (clinical), Proteinuria, Glomerulosclerosis, Focal Segmental, business.industry, Syndrome, General Medicine, Donnai–Barrow syndrome, medicine.disease, Eye abnormality, Low Density Lipoprotein Receptor-Related Protein-2, Phenotype, Karyotyping, Pediatrics, Perinatology and Child Health, Female, Agenesis of Corpus Callosum, Anatomy, medicine.symptom, business
Published: 2010

19. DICER1 syndrome: clarifying the diagnosis, clinical features and management implications of a pleiotropic tumour predisposition syndrome

Author: Ingrid Slade, Bruce Morland, Derek J. King, Charles A. Stiller, Kathryn Pritchard-Jones, Clare Turnbull, Lucy Side, Sucheta Vaidya, Anne Murray, Helen Davies, Katrina Prescott, Barry Pizer, Paul Ward, Heidi Traunecker, Rita Barfoot, Anand Saggar, Richard S. Houlston, Helen Jenkinson, Sandra Hanks, Michael R. Stratton, Gordan M. Vujanic, Andrew G. Nicholson, Julia C. Chisholm, Nazneen Rahman, P. Andrew Futreal, Martin Hewitt, Amos Burke, Fatemeh Abbaszadeh, Jenny Douglas, John R. Priest, Neil J. Sebire, and Chiara Bacchelli
Subjects: Ribonuclease III, endocrine system, Molecular Sequence Data, Pleuropulmonary blastoma, Haploinsufficiency, Biology, medicine.disease_cause, DEAD-box RNA Helicases, 03 medical and health sciences, 0302 clinical medicine, Cell Line, Tumor, Neoplasms, Genetics, medicine, Humans, Genetic Predisposition to Disease, Allele, Genetics (clinical), Germ-Line Mutation, 030304 developmental biology, DICER1 Syndrome, Medulloblastoma, 0303 health sciences, Mutation, Cystic nephroma, Cancer, Sequence Analysis, DNA, Syndrome, medicine.disease, 3. Good health, 030220 oncology & carcinogenesis, Cancer research
Abstract: BACKGROUND: Constitutional DICER1 mutations were recently reported to cause familial pleuropulmonary blastoma (PPB). AIM: To investigate the contribution and phenotypic spectrum of constitutional and somatic DICER1 mutations to cancer. METHODS AND RESULTS: The authors sequenced DICER1 in constitutional DNA from 823 unrelated patients with a variety of tumours and in 781 cancer cell lines. Constitutional DICER1 mutations were identified in 19 families including 11/14 with PPB, 2/3 with cystic nephroma, 4/7 with ovarian Sertoli-Leydig-type tumours, 1/243 with Wilms tumour (this patient also had a Sertoli-Leydig tumour), 1/1 with intraocular medulloepithelioma (this patient also had PPB), 1/86 with medulloblastoma/infratentorial primitive neuroectodermal tumour, and 1/172 with germ cell tumour. The inheritance was investigated in 17 families. DICER1 mutations were identified in 25 relatives: 17 were unaffected, one mother had ovarian Sertoli-Leydig tumour, one half-sibling had cystic nephroma, and six relatives had non-toxic thyroid cysts/goitre. Analysis of eight tumours from DICER1 mutation-positive patients showed universal retention of the wild-type allele. DICER1 truncating mutations were identified in 4/781 cancer cell lines; all were in microsatellite unstable lines and therefore unlikely to be driver mutations. CONCLUSION: Constitutional DICER1 haploinsufficiency predisposes to a broad range of tumours, making a substantial contribution to PPB, cystic nephroma and ovarian Sertoli-Leydig tumours, but a smaller contribution to other tumours. Most mutation carriers are unaffected, indicating that tumour risk is modest. The authors define the clinical contexts in which DICER1 mutation testing should be considered, the associated tumour risks, and the implications for at-risk individuals. They have termed this condition 'DICER1 syndrome'. ACCESSION NUMBERS: The cDNA Genbank accession number for the DICER1 sequence reported in this paper is NM_030621.2.
Published: 2011

20. The face of Ulnar Mammary syndrome?

Author: Katrina Prescott, Stefan Mundlos, Ruth Newbury-Ecob, John Tolmie, Richard Fisher, Shelagh Joss, and Usha Kini
Subjects: Delayed puberty, Proband, Adult, Male, Ulna, Biology, Short stature, Fingers, Breast Diseases, Young Adult, Ulnar–mammary syndrome, Genetics, medicine, Humans, Abnormalities, Multiple, Child, Genetics (clinical), Family Health, Polydactyly, Infant, General Medicine, Anatomy, Syndrome, Middle Aged, medicine.disease, Pedigree, Breast Hypoplasia, medicine.anatomical_structure, Child, Preschool, Face, Mutation, Female, medicine.symptom, Haploinsufficiency, T-Box Domain Proteins
Abstract: Ulnar Mammary syndrome (UMS) is an autosomal disorder caused by haploinsufficiency of the TBX3 gene. There is marked intrafamilial variation in expression of the syndrome. We present one three generation family in which the proband has absence of the right ulna and third, fourth and fifth rays in her right hand. Her mother and maternal grandmother have more subtle anomalies while all have a similar facial appearance with a broad nasal tip, a broad jaw, a prominent chin and a tongue frenulum. They have a single base pair insertion (c. 992dup) in TBX3. We compare faces from the handful of published UMS patients which include photographs, this family and four other cases with TBX3 mutations. All have similarities in appearance which we suggest could alert clinicians to the possibility of a TBX3 mutation if individuals present with more subtle features of UMS such as postaxial polydactyly, isolated 5th finger anomalies, delayed puberty in males, breast hypoplasia or short stature with or without growth hormone deficiency.
Published: 2010

21. Reduced TFAP2A function causes variable optic fissure closure and retinal defects and sensitizes eye development to mutations in other morphogenetic regulators

Author: Gaia Gestri, David O. Robinson, Susan M. Gribble, Dianne Gerrelli, David J. Bunyan, Katrina Prescott, Nicola K. Ragge, Stephen W. Wilson, Robert Osborne, Alexander W. Wyatt, Tomas W Fitzgerald, Nigel P. Carter, J. Richard O. Collin, Alan Fryer, and Helen Stewart
Subjects: Adult, Male, Biology, medicine.disease_cause, Eye, Retina, Article, Genetics, medicine, Morphogenesis, Animals, Humans, Expressivity (genetics), Eye Abnormalities, Genetics (clinical), Zebrafish, Coloboma, Mutation, Anophthalmia, Infant, Middle Aged, Zebrafish Proteins, medicine.disease, Penetrance, Phenotype, Transcription Factor AP-2, Child, Preschool, Eye development, Female, Branchio-oculo-facial syndrome, Branchio-Oto-Renal Syndrome, Gene Deletion
Abstract: Mutations in the transcription factor encoding TFAP2A gene underlie branchio-oculo-facial syndrome (BOFS), a rare dominant disorder characterized by distinctive craniofacial, ocular, ectodermal and renal anomalies. To elucidate the range of ocular phenotypes caused by mutations in TFAP2A, we took three approaches. First, we screened a cohort of 37 highly selected individuals with severe ocular anomalies plus variable defects associated with BOFS for mutations or deletions in TFAP2A. We identified one individual with a de novo TFAP2A four amino acid deletion, a second individual with two non-synonymous variations in an alternative splice isoform TFAP2A2, and a sibling-pair with a paternally inherited whole gene deletion with variable phenotypic expression. Second, we determined that TFAP2A is expressed in the lens, neural retina, nasal process, and epithelial lining of the oral cavity and palatal shelves of human and mouse embryos--sites consistent with the phenotype observed in patients with BOFS. Third, we used zebrafish to examine how partial abrogation of the fish ortholog of TFAP2A affects the penetrance and expressivity of ocular phenotypes due to mutations in genes encoding bmp4 or tcf7l1a. In both cases, we observed synthetic, enhanced ocular phenotypes including coloboma and anophthalmia when tfap2a is knocked down in embryos with bmp4 or tcf7l1a mutations. These results reveal that mutations in TFAP2A are associated with a wide range of eye phenotypes and that hypomorphic tfap2a mutations can increase the risk of developmental defects arising from mutations at other loci.
Published: 2009

22. Discriminating power of localized three-dimensional facial morphology

Author: Peter Hammond, Annette Karmiloff-Smith, Linda E. Campbell, Raoul C.M. Hennekam, Michael A. Patton, I. Karen Temple, Judith Allanson, Jill Clayton-Smith, Dian Donnai, Bernard F. Buxton, May Tassabehji, A F Stevens, Peter J. Scambler, Tim J. Hutton, Kieran C. Murphy, Barbara R. Pober, Kay Metcalfe, A. M. Smith, Katrina Prescott, Adam Shaw, ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, and Paediatric Genetics
Subjects: Adult, Genetic Markers, Male, Models, Anatomic, Chromosomes, Human, Pair 22, Biology, White People, Pattern Recognition, Automated, Correlation, 03 medical and health sciences, Imaging, Three-Dimensional, Bardet–Biedl syndrome, medicine, Genetics, Humans, Genetics(clinical), 10. No inequality, Alleles, In Situ Hybridization, Fluorescence, Genetics (clinical), 030304 developmental biology, 0303 health sciences, Polymorphism, Genetic, business.industry, Noonan Syndrome, 030305 genetics & heredity, Pattern recognition, Articles, medicine.disease, Smith–Magenis syndrome, Visualization, Face, Face (geometry), Pattern recognition (psychology), Linear Models, Noonan syndrome, Gestalt psychology, Female, Artificial intelligence, business, Chromosomes, Human, Pair 7, Gene Deletion, Microsatellite Repeats
Abstract: Many genetic syndromes involve a facial gestalt that suggests a preliminary diagnosis to an experienced clinical geneticist even before a clinical examination and genotyping are undertaken. Previously, using visualization and pattern recognition, we showed that dense surface models (DSMs) of full face shape characterize facial dysmorphology in Noonan and in 22q11 deletion syndromes. In this much larger study of 696 individuals, we extend the use of DSMs of the full face to establish accurate discrimination between controls and individuals with Williams, Smith-Magenis, 22q11 deletion, or Noonan syndromes and between individuals with different syndromes in these groups. However, the full power of the DSM approach is demonstrated by the comparable discriminating abilities of localized facial features, such as periorbital, perinasal, and perioral patches, and the correlation of DSM-based predictions and molecular findings. This study demonstrates the potential of face shape models to assist clinical training through visualization, to support clinical diagnosis of affected individuals through pattern recognition, and to enable the objective comparison of individuals sharing other phenotypic or genotypic properties.
Published: 2005

23. Microarray analysis of the Df1 mouse model of the 22q11 deletion syndrome

Author: Katrina Prescott, Peter J. Scambler, Mike Hubank, Sarah Ivins, Antonio Baldini, Elizabeth A. Lindsay, Prescott, K, Ivins, S, Hubank, M, Lindsay, Ea, Baldini, Antonio, and Scambler, P.
Subjects: TBX1, Male, Chromosomes, Human, Pair 22, Gene Dosage, Biology, Gene dosage, Polymerase Chain Reaction, Mice, 22q11 Deletion Syndrome, DiGeorge syndrome, Genetics, medicine, DiGeorge Syndrome, Animals, Cluster Analysis, Humans, Genetics (clinical), Dosage compensation, Microarray analysis techniques, medicine.disease, Microarray Analysis, Phenotype, Mice, Mutant Strains, Mice, Inbred C57BL, Disease Models, Animal, Female, Chromosome Deletion, Haploinsufficiency, T-Box Domain Proteins
Abstract: The 22q11 deletion syndrome (22q11DS; DiGeorge/velo-cardio-facial syndrome) primarily affects the structures comprising the pharyngeal arches and pouches resulting in arch artery, cardiac, parathyroid, thymus, palatal and craniofacial defects. Tbx1 haploinsufficiency is thought to account for the main structural anomalies observed in the 22q11DS. The Df1 deleted mouse provides a model for 22q11DS, the deletion reflecting Tbx1 haploinsufficiency in the context of the deletion of 21 adjacent genes. We examined the expression of genes in Df1 embryos at embryonic day (E) 10.5, a stage when the arch-artery phenotype is fully penetrant. Our aims were threefold, with our primary aim to identify differentially regulated genes. Second, we asked whether any of the genes hemizygous in Df1 were dosage compensated to wild type levels, and third we investigated whether genes immediately adjacent to the deletion were dysregulated secondary to a position effect. Utilisation of oligonulceotide arrays allowed us to achieve our aims with 9 out of 12 Df1 deleted genes passing the stringent statistical filtering applied. Several genes involved in vasculogenesis and cardiogenesis were validated by real time quantitative PCR (RTQPCR), including Connexin 45, a gene required for normal vascular development, and Dnajb9 a gene implicated in microvascular differentiation. There was no evidence of any dosage compensation of deleted genes, suggesting this phenomenon is rare, and no dysregulation of genes mapping immediately adjacent to the deletion was detected. However Crkl, another gene implicated in the 22q11DS phenotype, was found to be downregulated by microarray and RTQPCR.
Published: 2004

24. A novel 5q11.2 deletion detected by microarray comparative genomic hybridisation in a child referred as a case of suspected 22q11 deletion syndrome

Author: Maurice Super, Paula Stubbs, Katrina Prescott, Nigel P. Carter, Bronwyn Kerr, Rodger Palmer, Peter J. Scambler, and Kathryn Woodfine
Subjects: Genetics, Male, Microarray, Chromosomes, Human, Pair 22, Developmental Disabilities, Chromosome, Infant, Nucleic Acid Hybridization, Karyotype, Biology, medicine.disease, Human genetics, 22q11 Deletion Syndrome, Gene mapping, DiGeorge syndrome, medicine, Microsatellite, Chromosomes, Human, Pair 5, Humans, Chromosome Deletion, Child, Genetics (clinical), Microsatellite Repeats, Oligonucleotide Array Sequence Analysis
Abstract: The 22q11 deletion syndrome (22q11DS) is a developmental syndrome comprising of heart, palate, thymus and parathyroid glands defects. Individuals with 22q11DS usually carry a 1.5- to 3-Mb heterozygous deletion on chromosome 22q11.2. However, there are many patients with features of 22q11DS without a known cause from conventional karyotype and FISH analysis. Six patients with features of 22q11DS, a normal chromosomal and FISH 22q11 analysis, were selected for investigation by microarray genomic comparative hybridisation (array CGH). Array-CGH is a powerful technology enabling detection of submicroscopic chromosome duplications and deletions by comparing a differentially labelled test sample to a control. The samples are co-hybridised to a microarray containing genomic clones and the resulting ratio of fluorescence intensities on each array element is proportional to the DNA copy number difference. No chromosomal changes were detected by hybridisation to a high resolution array representing chromosome 22q. However, one patient was found to have a 6-Mb deletion on 5q11.2 detected by a whole genome 1-Mb array. This deletion was confirmed with fluorescence in-situ hybridisation (FISH) and microsatellite marker analysis. It is the first deletion described in this region. The patient had tetralogy of Fallot, a bifid uvula and velopharyngeal insufficiency, short stature, learning and behavioural difficulties. This case shows the increased sensitivity of array CGH over detailed karyotype analysis for detection of chromosomal changes. It is anticipated that array CGH will improve the clinician's capacity to diagnose congenital syndromes with an unknown aetiology.
Published: 2004

25. PORCNmutations in focal dermal hypoplasia: coping with lethality

Author: Paul J. Benke, Yasmin Mehraein, Cristina Has, J Strien, Katrina Prescott, Dorothea Bornholdt, Carlo Marcelis, B Prager, I Lohrisch, Zeller, W Kastrup, Andreas R. Janecke, B.C.J. Hamel, Arne König, Nicolas Chassaing, Rudolf Happle, Maria Piccione, Bart Loeys, GE Utine, P Della Giovanna, K Heinelt, Hildegunde Piza-Katzer, I van der Burgt, D Pagliarini, Boente, Jeffrey A. Ascherman, Karl-Heinz Grzeschik, Ian O. Ellis, Mauro Paradisi, Cri Francisco, Meo Nicolas, Annalisa Patrizi, Yasemin Alanay, and Frank Oeffner
Subjects: Oncology, medicine.medical_specialty, Coping (psychology), Internal medicine, Genetics, medicine, Lethality, Biology, medicine.disease, Genetics (clinical), Focal dermal hypoplasia, PORCN
Published: 2009

26. Identification of the First ATRIP–Deficient Patient and Novel Mutations in ATR Define a Clinical Spectrum for ATR–ATRIP Seckel Syndrome

Author: Mohnish Suri, Mark O'Driscoll, Norisato Mitsutake, Emma Hobson, Pradeep C. Vasudevan, Grant S. Stewart, Gillian Carpenter, Penny A. Jeggo, A. Malcolm R. Taylor, Sarah R. Walker, Tomoo Ogi, Yuka Nakazawa, Katrina Prescott, Margaret Barrow, Michiko Matsuse, Philip J. Byrd, Tom Stiff, and Siripan Limsirichaikul
Subjects: Male, Cancer Research, Microcephaly, Heredity, Gene Identification and Analysis, Dwarfism, Cell Cycle Proteins, Ataxia Telangiectasia Mutated Proteins, medicine.disease_cause, Compound heterozygosity, Gene Splicing, Micrognathism, Genetics (clinical), Growth Disorders, Genetics, Mutation, Fetal Growth Retardation, Ear, Patella, DNA-Binding Proteins, Phenotypes, Codon, Nonsense, Female, Research Article, Signal Transduction, Heterozygote, lcsh:QH426-470, RNA Splicing, Biology, Protein Serine-Threonine Kinases, Osteochondrodysplasias, Molecular Genetics, Genetic Mutation, medicine, Humans, Allele, Molecular Biology, Ecology, Evolution, Behavior and Systematics, Adaptor Proteins, Signal Transducing, Congenital Microtia, medicine.disease, lcsh:Genetics, Seckel syndrome, Gene Expression Regulation, Genetics of Disease, Primordial dwarfism
Abstract: A homozygous mutational change in the Ataxia-Telangiectasia and RAD3 related (ATR) gene was previously reported in two related families displaying Seckel Syndrome (SS). Here, we provide the first identification of a Seckel Syndrome patient with mutations in ATRIP, the gene encoding ATR–Interacting Protein (ATRIP), the partner protein of ATR required for ATR stability and recruitment to the site of DNA damage. The patient has compound heterozygous mutations in ATRIP resulting in reduced ATRIP and ATR expression. A nonsense mutational change in one ATRIP allele results in a C-terminal truncated protein, which impairs ATR–ATRIP interaction; the other allele is abnormally spliced. We additionally describe two further unrelated patients native to the UK with the same novel, heterozygous mutations in ATR, which cause dramatically reduced ATR expression. All patient-derived cells showed defective DNA damage responses that can be attributed to impaired ATR–ATRIP function. Seckel Syndrome is characterised by microcephaly and growth delay, features also displayed by several related disorders including Majewski (microcephalic) osteodysplastic primordial dwarfism (MOPD) type II and Meier-Gorlin Syndrome (MGS). The identification of an ATRIP–deficient patient provides a novel genetic defect for Seckel Syndrome. Coupled with the identification of further ATR–deficient patients, our findings allow a spectrum of clinical features that can be ascribed to the ATR–ATRIP deficient sub-class of Seckel Syndrome. ATR–ATRIP patients are characterised by extremely severe microcephaly and growth delay, microtia (small ears), micrognathia (small and receding chin), and dental crowding. While aberrant bone development was mild in the original ATR–SS patient, some of the patients described here display skeletal abnormalities including, in one patient, small patellae, a feature characteristically observed in Meier-Gorlin Syndrome. Collectively, our analysis exposes an overlapping clinical manifestation between the disorders but allows an expanded spectrum of clinical features for ATR–ATRIP Seckel Syndrome to be defined., Author Summary Seckel Syndrome (SS) is a rare human disorder characterised by small head circumference and delayed growth. Patients can show additional features including abnormal bone development, receding chins, sloping foreheads, and small ears. In 2003, we identified ataxia telangiectasia and Rad3 related (ATR) as a causal genetic defect in two related families displaying SS. However, additional patients with mutations in ATR have not hitherto been identified. Here, we describe two further patients with novel mutations in ATR. Additionally, we identify a patient with mutations in ATRIP, which encodes an interacting partner of ATR, representing a novel genetic defect causing SS. ATR functions to promote the ability of cells to recover from difficulties encountered during replication. We show that patient-derived cells have reduced ATR and ATRIP protein levels and defective ATR/ATRIP function. Our identification of further ATR–ATRIP defective patients and a consideration of their clinical features aids the characterisation and identification of this form of SS and provides insight into the role played by the ATR–ATRIP complex during development.
Published: 2012

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26 results on '"Katrina Prescott"'

1. Further delineation of the clinical spectrum of White–Sutton syndrome: 12 new individuals and a review of the literature

2. Monoallelic Loss of Function BMP2 Variants Result in BMP2-Related Skeletal Dysplasia Spectrum

3. De novo variants in FRMD5 are associated with developmental delay, intellectual disability, ataxia, and abnormalities of eye movement

4. Exome sequencing efficacy and phenotypic expansions involving esophageal atresia/tracheoesophageal fistula plus

5. Expanding the genotypic spectrum of TXNL4A variants in Burn-McKeown syndrome

6. Mosaicism in ASXL3-related syndrome: Description of five patients from three families

7. The broad phenotypic spectrum of PPP2R1A -related neurodevelopmental disorders correlates with the degree of biochemical dysfunction

8. CTCF variants in 39 individuals with a variable neurodevelopmental disorder broaden the mutational and clinical spectrum

9. Heterozygous Variants in KMT2E Cause a Spectrum of Neurodevelopmental Disorders and Epilepsy

10. Correction: Arterial tortuosity syndrome: 40 new families and literature review

11. Bi-allelic Loss-of-Function CACNA1B Mutations in Progressive Epilepsy-Dyskinesia

12. Arterial tortuosity syndrome: 40 new families and literature review

13. Histone Lysine Methylases and Demethylases in the Landscape of Human Developmental Disorders

14. Heterozygous Loss-of-Function Mutations in DLL4 Cause Adams-Oliver Syndrome

15. Comprehensive Clinical and Molecular Analysis of 12 Families with Type 1 Recessive Cutis Laxa

16. Whole-Exome Sequencing Identifies Mutations in GPR179 Leading to Autosomal-Recessive Complete Congenital Stationary Night Blindness

17. PORCNmutations in focal dermal hypoplasia: coping with lethality

18. Focal segmental glomerulosclerosis in a female patient with Donnai–Barrow syndrome

19. DICER1 syndrome: clarifying the diagnosis, clinical features and management implications of a pleiotropic tumour predisposition syndrome

20. The face of Ulnar Mammary syndrome?

21. Reduced TFAP2A function causes variable optic fissure closure and retinal defects and sensitizes eye development to mutations in other morphogenetic regulators

22. Discriminating power of localized three-dimensional facial morphology

23. Microarray analysis of the Df1 mouse model of the 22q11 deletion syndrome

24. A novel 5q11.2 deletion detected by microarray comparative genomic hybridisation in a child referred as a case of suspected 22q11 deletion syndrome

25. PORCNmutations in focal dermal hypoplasia: coping with lethality

26. Identification of the First ATRIP–Deficient Patient and Novel Mutations in ATR Define a Clinical Spectrum for ATR–ATRIP Seckel Syndrome

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26 results on '"Katrina Prescott"'

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