1
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Conte F, Sam JE, Lefeber DJ, Passier R. Metabolic Cardiomyopathies and Cardiac Defects in Inherited Disorders of Carbohydrate Metabolism: A Systematic Review. Int J Mol Sci 2023; 24:ijms24108632. [PMID: 37239976 DOI: 10.3390/ijms24108632] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/25/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Heart failure (HF) is a progressive chronic disease that remains a primary cause of death worldwide, affecting over 64 million patients. HF can be caused by cardiomyopathies and congenital cardiac defects with monogenic etiology. The number of genes and monogenic disorders linked to development of cardiac defects is constantly growing and includes inherited metabolic disorders (IMDs). Several IMDs affecting various metabolic pathways have been reported presenting cardiomyopathies and cardiac defects. Considering the pivotal role of sugar metabolism in cardiac tissue, including energy production, nucleic acid synthesis and glycosylation, it is not surprising that an increasing number of IMDs linked to carbohydrate metabolism are described with cardiac manifestations. In this systematic review, we offer a comprehensive overview of IMDs linked to carbohydrate metabolism presenting that present with cardiomyopathies, arrhythmogenic disorders and/or structural cardiac defects. We identified 58 IMDs presenting with cardiac complications: 3 defects of sugar/sugar-linked transporters (GLUT3, GLUT10, THTR1); 2 disorders of the pentose phosphate pathway (G6PDH, TALDO); 9 diseases of glycogen metabolism (GAA, GBE1, GDE, GYG1, GYS1, LAMP2, RBCK1, PRKAG2, G6PT1); 29 congenital disorders of glycosylation (ALG3, ALG6, ALG9, ALG12, ATP6V1A, ATP6V1E1, B3GALTL, B3GAT3, COG1, COG7, DOLK, DPM3, FKRP, FKTN, GMPPB, MPDU1, NPL, PGM1, PIGA, PIGL, PIGN, PIGO, PIGT, PIGV, PMM2, POMT1, POMT2, SRD5A3, XYLT2); 15 carbohydrate-linked lysosomal storage diseases (CTSA, GBA1, GLA, GLB1, HEXB, IDUA, IDS, SGSH, NAGLU, HGSNAT, GNS, GALNS, ARSB, GUSB, ARSK). With this systematic review we aim to raise awareness about the cardiac presentations in carbohydrate-linked IMDs and draw attention to carbohydrate-linked pathogenic mechanisms that may underlie cardiac complications.
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Affiliation(s)
- Federica Conte
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, 7522 NH Enschede, The Netherlands
| | - Juda-El Sam
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Dirk J Lefeber
- Department of Neurology, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
- Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Robert Passier
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, 7522 NH Enschede, The Netherlands
- Department of Anatomy and Embryology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
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2
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Rolland M, Dubourg C, Cospain A, Droitcourt C, Pasquier L. Child with a mild CHIME syndrome phenotype and carrying a novel p.(Asp52Asn) PIGL pathogenic variant in association with the previously reported p.(Leu167Pro) variant: A case report. Pediatr Dermatol 2022; 39:434-437. [PMID: 35258128 DOI: 10.1111/pde.14969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 11/29/2022]
Abstract
Coloboma, congenital heart disease, ichthyosiform dermatosis, mental retardation, and ear anomalies (CHIME) syndrome is a very rare autosomal recessive neuroectodermal disorder related to PIGL gene mutations. Here, we report a patient who showed an initial delay in psychomotor development and skin abnormalities consistent with CHIME syndrome but with atypical clinical features and laboratory findings. In line with our clinical suspicion, the c.500T>C, p.(Leu167Pro) variant (found in all the previously described cases of CHIME syndrome) was found on the paternal allele. A novel "likely pathogenic" PIGL missense variant (c.154G>A, p.(Asp52Asn)) was detected on the maternal allele. This case provides new insights into the clinical spectrum of CHIME syndrome and highlights the potential for phenotypic/genotypic variations.
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Affiliation(s)
| | - Christèle Dubourg
- Department of Molecular Genetics and Genomics, CHU Rennes, Rennes, France.,UMR 6290, IGDR, CNRS, University of Rennes, Rennes, France
| | - Auriane Cospain
- Department of Molecular Genetics and Genomics, CHU Rennes, Rennes, France.,Department of Medical Genetics, Referral Centre for Developmental anomalies and malformation syndromes, CHU Rennes, Rennes, France
| | - Catherine Droitcourt
- Department of Dermatology, CHU Rennes, Rennes, France.,UMR_S 1085, Irset (Institut de recherche en santé, environnement et travail), EHESP, Inserm, University of Rennes, Rennes, France
| | - Laurent Pasquier
- Department of Medical Genetics, Referral Centre for Developmental anomalies and malformation syndromes, CHU Rennes, Rennes, France
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3
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Winter-Paquette LM, Al Suwaidi HH, Sajjad Y, Bricker L. Congenital diaphragmatic hernia and early lethality in PIGL-related disorder. Eur J Med Genet 2022; 65:104501. [DOI: 10.1016/j.ejmg.2022.104501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/15/2022] [Accepted: 03/29/2022] [Indexed: 11/03/2022]
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4
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Wu T, Yin F, Guang S, He F, Yang L, Peng J. The Glycosylphosphatidylinositol biosynthesis pathway in human diseases. Orphanet J Rare Dis 2020; 15:129. [PMID: 32466763 PMCID: PMC7254680 DOI: 10.1186/s13023-020-01401-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/06/2020] [Indexed: 01/15/2023] Open
Abstract
Glycosylphosphatidylinositol biosynthesis defects cause rare genetic disorders characterised by developmental delay/intellectual disability, seizures, dysmorphic features, and diverse congenital anomalies associated with a wide range of additional features (hypotonia, hearing loss, elevated alkaline phosphatase, and several other features). Glycosylphosphatidylinositol functions as an anchor to link cell membranes and protein. These proteins function as enzymes, adhesion molecules, complement regulators, or co-receptors in signal transduction pathways. Biallelic variants involved in the glycosylphosphatidylinositol anchored proteins biosynthetic pathway are responsible for a growing number of disorders, including multiple congenital anomalies-hypotonia-seizures syndrome; hyperphosphatasia with mental retardation syndrome/Mabry syndrome; coloboma, congenital heart disease, ichthyosiform dermatosis, mental retardation, and ear anomalies/epilepsy syndrome; and early infantile epileptic encephalopathy-55. This review focuses on the current understanding of Glycosylphosphatidylinositol biosynthesis defects and the associated genes to further understand its wide phenotype spectrum.
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Affiliation(s)
- Tenghui Wu
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Fei Yin
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Shiqi Guang
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Fang He
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Li Yang
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Jing Peng
- Department of Pediatrics, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China. .,Hunan Children's Mental Disorders Research Center, XiangYa Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.
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5
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Manea E. A step closer in defining glycosylphosphatidylinositol anchored proteins role in health and glycosylation disorders. Mol Genet Metab Rep 2018; 16:67-75. [PMID: 30094187 PMCID: PMC6080220 DOI: 10.1016/j.ymgmr.2018.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/21/2018] [Accepted: 07/21/2018] [Indexed: 12/18/2022] Open
Abstract
Glycosylphosphatidylinositol anchored proteins (GPI-APs) represent a class of soluble proteins attached to the external leaflet of the plasma membrane by a post-translation modification, the GPI anchor. The 28 genes currently involved in the synthesis and remodelling of the GPI anchor add to the ever-growing class of congenital glycosylation disorders. Recent advances in next generation sequencing technology have led to the discovery of Mabry disease and CHIME syndrome genetic aetiology. Moreover, with each described mutation known phenotypes expand and new ones emerge without clear genotype-phenotype correlation. A protein database search was made for human GPI-APs with defined pathology to help building-up a physio-pathological mechanism from a clinical perspective. GPI-APs function in vitamin-B6 and folate transport, nucleotide metabolism and lipid homeostasis. Defining GPI-APs role in disease bears significant clinical implications.
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6
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Ceroni JR, Yamamoto GL, Honjo RS, Kim CA, Passos-Bueno MR, Bertola DR. Large deletion in PIGL: a common mutational mechanism in CHIME syndrome? Genet Mol Biol 2018; 41:85-91. [PMID: 29473937 PMCID: PMC5901507 DOI: 10.1590/1678-4685-gmb-2017-0172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 10/17/2017] [Indexed: 11/26/2022] Open
Abstract
CHIME syndrome is an extremely rare autosomal recessive multisystemic disorder
caused by mutations in PIGL. PIGL is an endoplasmic reticulum
localized enzyme that catalyzes the second step of glycosylphosphatidylinositol
(GPI) biosynthesis, which plays a role in the anchorage of cell-surface proteins
including receptors, enzymes, and adhesion molecules. Germline mutations in
other members of GPI and Post GPI Attachment to Proteins (PGAP) family genes
have been described and constitute a group of diseases within the congenital
disorders of glycosylation. Patients in this group often present alkaline
phosphatase serum levels abnormalities and neurological symptoms. We report a
CHIME syndrome patient who harbors a missense mutation c.500T > C
(p.Leu167Pro) and a large deletion involving the 5’ untranslated region and part
of exon 1 of PIGL. In CHIME syndrome, a recurrent missense
mutation c.500T > C (p.Leu167Pro) is found in the majority of patients,
associated with a null mutation in the other allele, including an
overrepresentation of large deletions. The latter are not detected by the
standard analysis in sequencing techniques, including next-generation
sequencing. Thus, in individuals with a clinical diagnosis of CHIME syndrome in
which only one mutation is found, an active search for a large deletion should
be sought.
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Affiliation(s)
- José Rm Ceroni
- Genetics Unit, Instituto da Criança do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Guilherme L Yamamoto
- Genetics Unit, Instituto da Criança do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.,Centro de Pesquisa sobre o Genoma Humano e Células-Tronco, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rachel S Honjo
- Genetics Unit, Instituto da Criança do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Chong A Kim
- Genetics Unit, Instituto da Criança do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Maria R Passos-Bueno
- Centro de Pesquisa sobre o Genoma Humano e Células-Tronco, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Débora R Bertola
- Genetics Unit, Instituto da Criança do Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.,Centro de Pesquisa sobre o Genoma Humano e Células-Tronco, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
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7
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Altassan R, Fox S, Poulin C, Buhas D. Hyperphosphatasia with mental retardation syndrome, expanded phenotype of PIGL related disorders. Mol Genet Metab Rep 2018; 15:46-49. [PMID: 30023290 PMCID: PMC6047459 DOI: 10.1016/j.ymgmr.2018.01.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 12/20/2022] Open
Abstract
Hypomorphic mutations in six different genes involved in the glycosylphosphatidylinositol (GPI) biogenesis pathway are linked to Mabry syndrome (hyperphosphatasia with mental retardation syndrome, HPMRS). This report on the third affected family with a HPMRS phenotype caused by mutations in PIGL, confirming the seventh GPI biogenesis gene linked to HPMRS. Two siblings presented with the main features of HPMRS; developmental delay, cognitive impairment, seizure disorder, skeletal deformities, and high alkaline phosphatase. We identified two heterozygous mutations in the PIGL gene (P.Trp20Ter and p.Arg88Cys). PIGL mutations have been linked to another distinctive neuroectodermal disorder: CHIME syndrome. The clinical picture of our patients expands the spectrum of PIGL-related phenotypes.
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Key Words
- ALP, alkaline phosphatase
- CHIME syndrome
- CHIME, ocular colobomas, heart defect, ichthyosis, mental retardation, and abnormal ears or epilepsy
- CSS, Coffin-Siris syndrome
- GPI biogenesis
- GPI, glycosylphosphatidylinositol
- HPMRS, hyperphosphatasia with mental retardation syndrome
- Hyperphosphatasia mental retardation syndrome (HPMRS)
- Mabry syndrome
- PIGL gene
- PIGL, phosphatidylinositol glycan anchor biosynthesis class L
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Affiliation(s)
- Ruqaiah Altassan
- Department of Medical Genetics, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
| | - Stephanie Fox
- Department of Medical Genetics, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
| | - Chantal Poulin
- Department of Pediatric, Division of Neurology, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
| | - Daniela Buhas
- Department of Medical Genetics, Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada.,Department of Human Genetics, McGill University, Montreal, Quebec, Canada
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8
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Malhotra R, Hernández-Martın A, Oji V. Ocular manifestations, complications and management of congenital ichthyoses: a new look. Br J Ophthalmol 2017; 102:586-592. [DOI: 10.1136/bjophthalmol-2017-310615] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 10/06/2017] [Accepted: 10/06/2017] [Indexed: 02/04/2023]
Abstract
Congenital ichthyoses (CI) are rare genetic skin keratinisation diseases characterised by generalised scaling and a variable degree of erythema and hyperkeratosis. Ocular involvement includes the eyelids, conjunctiva and all layers of the cornea. Ophthalmic input should include regular slit lamp review with the primary aim to prevent a corneal epithelial defect, secondary bacterial infection, scarring or perforation. This review highlights the current literature regarding ophthalmic findings and management of CI.
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9
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Marques-da-Silva D, Francisco R, Webster D, Dos Reis Ferreira V, Jaeken J, Pulinilkunnil T. Cardiac complications of congenital disorders of glycosylation (CDG): a systematic review of the literature. J Inherit Metab Dis 2017; 40:657-672. [PMID: 28726068 DOI: 10.1007/s10545-017-0066-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 06/06/2017] [Accepted: 06/08/2017] [Indexed: 01/03/2023]
Abstract
Congenital disorders of glycosylation (CDG) are inborn errors of metabolism due to protein and lipid hypoglycosylation. This rapidly growing family of genetic diseases comprises 103 CDG types, with a broad phenotypic diversity ranging from mild to severe poly-organ -system dysfunction. This literature review summarizes cardiac involvement, reported in 20% of CDG. CDG with cardiac involvement were divided according to the associated type of glycosylation: N-glycosylation, O-glycosylation, dolichol synthesis, glycosylphosphatidylinositol (GPI)-anchor biosynthesis, COG complex, V-ATPase complex, and other glycosylation pathways. The aim of this review was to document and interpret the incidence of heart disease in CDG patients. Heart disorders were grouped into cardiomyopathies, structural defects, and arrhythmogenic disorders. This work may contribute to improved early management of cardiac complications in CDG.
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Affiliation(s)
- D Marques-da-Silva
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal
- Portuguese Association for CDG, Lisbon, Portugal
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal
| | - R Francisco
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Lisbon, Portugal
- Portuguese Association for CDG, Lisbon, Portugal
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal
| | - D Webster
- Division of Infectious Diseases, Department of Medicine, Saint John Regional Hospital, Dalhousie University, Saint John, NB, Canada
| | - V Dos Reis Ferreira
- Portuguese Association for CDG, Lisbon, Portugal
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal
| | - J Jaeken
- CDG & Allies - Professionals and Patient Associations International Network (CDG & Allies - PPAIN), Caparica, Portugal
- Center for Metabolic Diseases, UZ and KU Leuven, Leuven, Belgium
| | - T Pulinilkunnil
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dalhousie University, Dalhousie Medicine New Brunswick, 100 Tucker Park Road, Saint John, NB, E2L 4L5, Canada.
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10
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Knight Johnson A, Schaefer GB, Lee J, Hu Y, del Gaudio D. Alu
-mediated deletion of PIGL
in a Patient with CHIME syndrome. Am J Med Genet A 2017; 173:1378-1382. [DOI: 10.1002/ajmg.a.38181] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 01/09/2017] [Accepted: 01/18/2017] [Indexed: 12/18/2022]
Affiliation(s)
| | | | - Jennifer Lee
- Greenwood Genetic Center; Greenwood South Carolina
| | - Ying Hu
- Department of Human Genetics; University of Chicago; Chicago Illinois
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11
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Bardawil T, Khalil S, Bergqvist C, Abbas O, Kibbi AG, Bitar F, Nemer G, Kurban M. Genetics of inherited cardiocutaneous syndromes: a review. Open Heart 2016; 3:e000442. [PMID: 27933191 PMCID: PMC5133403 DOI: 10.1136/openhrt-2016-000442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 12/17/2022] Open
Abstract
The life of a human being originates as a single cell which, under the influence of certain factors, divides sequentially into multiple cells that subsequently become committed to develop and differentiate into the different structures and organs. Alterations occurring early on in the development process may lead to fetal demise in utero. Conversely, abnormalities at later stages may result in structural and/or functional abnormalities of varying severities. The cardiovascular system and skin share certain developmental and structural factors; therefore, it is not surprising to find several inherited syndromes with both cardiac and skin manifestations. Here, we will review the overlapping pathways in the development of the skin and heart, as well as the resulting syndromes. We will also highlight several cutaneous clues that may help physicians screen and uncover cardiac anomalies that may be otherwise hidden and result in sudden cardiac death.
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Affiliation(s)
| | | | | | - Ossama Abbas
- Department of Dermatology , American University of Beirut , Beirut Lebanon
| | - Abdul Ghani Kibbi
- Department of Dermatology , American University of Beirut , Beirut Lebanon
| | - Fadi Bitar
- Department of Biochemistry and Molecular Genetics, American University of Beirut, BeirutLebanon; Department of Pediatrics, American University of Beirut, BeirutLebanon
| | - Georges Nemer
- Department of Biochemistry and Molecular Genetics , American University of Beirut , Beirut Lebanon
| | - Mazen Kurban
- Department of Dermatology, American University of Beirut, BeirutLebanon; Department of Biochemistry and Molecular Genetics, American University of Beirut, BeirutLebanon; Department of Dermatology, Columbia University Medical Center, New York, New York, USA
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12
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Fujiwara I, Murakami Y, Niihori T, Kanno J, Hakoda A, Sakamoto O, Okamoto N, Funayama R, Nagashima T, Nakayama K, Kinoshita T, Kure S, Matsubara Y, Aoki Y. Mutations in PIGL in a patient with Mabry syndrome. Am J Med Genet A 2015; 167A:777-85. [PMID: 25706356 DOI: 10.1002/ajmg.a.36987] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/08/2014] [Indexed: 12/14/2022]
Abstract
Mabry syndrome, hyperphosphatasia mental retardation syndrome (HPMRS), is an autosomal recessive disease characterized by increased serum levels of alkaline phosphatase (ALP), severe developmental delay, intellectual disability, and seizures. Recent studies have revealed mutations in PIGV, PIGW, PIGO, PGAP2, and PGAP3 (genes that encode molecules of the glycosylphosphatidylinositol (GPI)-anchor biosynthesis pathway) in patients with HPMRS. We performed whole-exome sequencing of a patient with severe intellectual disability, distinctive facial appearance, fragile nails, and persistent increased serum levels of ALP. The result revealed a compound heterozygote with a 13-bp deletion in exon 1 (c.36_48del) and a two-base deletion in exon 2 (c.254_255del) in phosphatidylinositol glycan anchor, class L (PIGL) that caused frameshifts resulting in premature terminations. The 13-bp deletion was inherited from the father, and the two-base deletion was inherited from the mother. Expressing c.36_48del or c.254_255del cDNA with an HA-tag at the C- or N-terminus in PIGL-deficient CHO cells only partially restored the surface expression of GPI-anchored proteins (GPI-APs). Nonsynonymous changes or frameshift mutations in PIGL have been identified in patients with CHIME syndrome, a rare autosomal recessive disorder characterized by colobomas, congenital heart defects, early onset migratory ichthyosiform dermatosis, intellectual disability, and ear abnormalities. Our patient did not have colobomas, congenital heart defects, or early onset migratory ichthyosiform dermatosis and hence was diagnosed with HPMRS, and not CHIME syndrome. These results suggest that frameshift mutations that result in premature termination in PIGL cause a phenotype that is consistent with HPMRS.
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Affiliation(s)
- Ikuma Fujiwara
- Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan
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13
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Kvarnung M, Nilsson D, Lindstrand A, Korenke GC, Chiang SCC, Blennow E, Bergmann M, Stödberg T, Mäkitie O, Anderlid BM, Bryceson YT, Nordenskjöld M, Nordgren A. A novel intellectual disability syndrome caused by GPI anchor deficiency due to homozygous mutations inPIGT. J Med Genet 2013; 50:521-8. [DOI: 10.1136/jmedgenet-2013-101654] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Diaz LZ, Browning JC, Smidt AC, Rizzo WB, Levy ML. Complications of ichthyosis beyond the skin. Dermatol Ther 2013; 26:39-45. [DOI: 10.1111/j.1529-8019.2012.01517.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucia Z. Diaz
- Department of Dermatology; University of Texas Health Science Center-Houston; Houston; Texas
| | - John C. Browning
- Department of Pediatrics and Division of Dermatology; University of Texas Health Science Center at San Antonio; San Antonio; Texas
| | - Aimee C. Smidt
- Departments of Dermatology and Pediatrics; University of New Mexico School of Medicine; Albuquerque; New Mexico
| | - William B. Rizzo
- Department of Pediatrics; University of Nebraska Medical Center; Omaha; Nebraska
| | - Moise L. Levy
- Pediatric Dermatology; Dell Children's Medical Center; Austin; Texas
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15
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Ng B, Hackmann K, Jones M, Eroshkin A, He P, Wiliams R, Bhide S, Cantagrel V, Gleeson J, Paller A, Schnur R, Tinschert S, Zunich J, Hegde M, Freeze H. Mutations in the glycosylphosphatidylinositol gene PIGL cause CHIME syndrome. Am J Hum Genet 2012; 90:685-8. [PMID: 22444671 PMCID: PMC3322218 DOI: 10.1016/j.ajhg.2012.02.010] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 01/30/2012] [Accepted: 02/09/2012] [Indexed: 10/28/2022] Open
Abstract
CHIME syndrome is characterized by colobomas, heart defects, ichthyosiform dermatosis, mental retardation (intellectual disability), and ear anomalies, including conductive hearing loss. Whole-exome sequencing on five previously reported cases identified PIGL, the de-N-acetylase required for glycosylphosphatidylinositol (GPI) anchor formation, as a strong candidate. Furthermore, cell lines derived from these cases had significantly reduced levels of the two GPI anchor markers, CD59 and a GPI-binding toxin, aerolysin (FLAER), confirming the pathogenicity of the mutations.
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Affiliation(s)
- Bobby G. Ng
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Karl Hackmann
- Institut fuer Klinische Genetik, Medizinische Fakultaet Carl Gustav Carus, Technische Universitaet Dresden, 01307 Dresden, Germany
| | - Melanie A. Jones
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Alexey M. Eroshkin
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Ping He
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Roy Wiliams
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Shruti Bhide
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Vincent Cantagrel
- Neurogenetics Laboratory, Institute for Genomic Medicine, Howard Hughes Medical Institute, Department of Neurosciences and Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Joseph G. Gleeson
- Neurogenetics Laboratory, Institute for Genomic Medicine, Howard Hughes Medical Institute, Department of Neurosciences and Pediatrics, University of California, San Diego, La Jolla, CA 92093, USA
| | - Amy S. Paller
- Department of Dermatology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Rhonda E. Schnur
- Division of Genetics, Department of Pediatrics, Cooper Medical School of Rowan University, Camden, NJ 08103, USA
| | - Sigrid Tinschert
- Institut fuer Klinische Genetik, Medizinische Fakultaet Carl Gustav Carus, Technische Universitaet Dresden, 01307 Dresden, Germany
| | - Janice Zunich
- Genetics Center, Indiana University School of Medicine–Northwest, Gary, IN 46408, USA
| | - Madhuri R. Hegde
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Hudson H. Freeze
- Genetic Disease Program, Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
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Hartley C, Barnett KC, Pettitt L, Forman OP, Blott S, Mellersh CS. Congenital keratoconjunctivitis sicca and ichthyosiform dermatosis in Cavalier King Charles spaniel dogs-part II: candidate gene study. Vet Ophthalmol 2012; 15:327-32. [DOI: 10.1111/j.1463-5224.2012.00987.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hartley C, Donaldson D, Smith KC, Henley W, Lewis TW, Blott S, Mellersh C, Barnett KC. Congenital keratoconjunctivitis sicca and ichthyosiform dermatosis in 25 Cavalier King Charles spaniel dogs. Part I: clinical signs, histopathology, and inheritance. Vet Ophthalmol 2011; 15:315-26. [PMID: 22212237 DOI: 10.1111/j.1463-5224.2011.00986.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The clinical presentation and progression (over 9 months to 13 years) of congenital keratoconjunctivitis sicca and ichthyosiform dermatosis (CKCSID) in the Cavalier King Charles spaniel dog are described for six new cases and six previously described cases. Cases presented with a congenitally abnormal (rough/curly) coat and signs of KCS from eyelid opening. Persistent scale along the dorsal spine and flanks with a harsh frizzy and alopecic coat was evident in the first few months of life. Ventral abdominal skin was hyperpigmented and hyperkeratinized in adulthood. Footpads were hyperkeratinized from young adulthood with nail growth abnormalities and intermittent sloughing. Long-term follow-up of cases (13/25) is described. Immunomodulatory/lacrimostimulant treatment had no statistically significant effect on Schirmer tear test results, although subjectively, this treatment reduced progression of the keratitis. Histopathological analysis of samples (skin/footpads/lacrimal glands/salivary glands) for three new cases was consistent with an ichthyosiform dermatosis, with no pathology of the salivary or lacrimal glands identified histologically. Pedigree analysis suggests the syndrome is inherited by an autosomal recessive mode.
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Affiliation(s)
- Claudia Hartley
- Unit of Comparative Ophthalmology, Centre for Small Animal Studies, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, UK.
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Al-Gazali L, Hertecant J, Algawi K, El Teraifi H, Dattani M. A new autosomal recessive syndrome of ocular colobomas, ichthyosis, brain malformations and endocrine abnormalities in an inbred Emirati family. Am J Med Genet A 2008; 146A:813-9. [PMID: 18271001 DOI: 10.1002/ajmg.a.32114] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We report on an inbred Emirati family of Baluchi origin with ocular colobomas, ichthyosis, and endocrine abnormalities associated with midline brain malformations and mental retardation. All affected children had ocular colobomas, developmental delay and midline brain malformations. Hypoplastic pituitary gland was present in all three investigated children. Ichthyosiform dermatitis appeared in infancy in all surviving children. Other variable features include congenital heart defects, hypertrichosis and dark skin involving the dorsum of hands and feet associated with mild degree of palmo-plantar keratoderma. Some of the features in this family overlap the CHIME (Coloboma of the eye, Heart defect, Ichthyosiform dermatosis, Mental retardation, and Ear defect) syndrome. However, several features described in CHIME syndrome were not present in these children. These include deafness, seizures, oligodontia, and hair abnormalities. Some of the features in these children also overlap with septo-optic dysplasia (SOD) but optic nerve hypoplasia, mandatory for the diagnosis of SOD, was present in one child only. We suggest that these children have a new autosomal recessive syndrome of ocular colobomas and ichthyosis.
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Affiliation(s)
- L Al-Gazali
- Department of Paediatrics, Faculty of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates.
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19
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Abstract
PURPOSE OF REVIEW To integrate knowledge on the embryologic and molecular basis of optic fissure closure with clinical observations in patients with uveal coloboma. RECENT FINDINGS Closure of the optic fissure has been well characterized and many genetic alterations have been associated with coloboma; however, molecular mechanisms leading to coloboma remain largely unknown. In the past decade, we have gained better understanding of genes critical to eye development; however, mutations in these genes have been found in few individuals with coloboma. CHD7 mutations have been identified in patients with CHARGE syndrome (coloboma, heart defects, choanal atresia, retarded growth, genital anomalies, and ear anomalies or deafness). Animal models are bringing us closer to a molecular understanding of optic fissure closure. SUMMARY Optic fissure closure requires precise orchestration in timing and apposition of two poles of the optic cup. The relative roles of genetics and environment on this process remain elusive. While most cases of coloboma are sporadic, autosomal dominant, autosomal recessive, and X-linked inheritance patterns have been described. Genetically, colobomata demonstrate pleiotropy, heterogeneity, variable expressivity, and reduced penetrance. Coloboma is a complex disorder with a variable prognosis and requires regular examination to optimize visual acuity and to monitor for potential complications.
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Affiliation(s)
- Lan Chang
- National Eye Institute, National Institutes of Health, Bethesda, Maryland 20892, USA
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Abstract
Congenital colobomata of the eye are important causes of childhood visual impairment and blindness. Ocular coloboma can be seen in isolation and in an impressive number of multisystem syndromes, where the eye phenotype is often seen in association with severe neurological or craniofacial anomalies or other systemic developmental defects. Several studies have shown that, in addition to inheritance, environmental influences may be causative factors. Through work to identify genes underlying inherited coloboma, significant inroads are being made into understanding the molecular events controlling closure of the optic fissure. In general, severity of disease can be linked to the temporal expression of the gene, but this is modified by factors such as tissue specificity of gene expression and genetic redundancy.
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Affiliation(s)
- R Sidbury
- Departments of Pediatrics and Dermatology, Children's Hospital and Regional Medical Center, University of Washington School of Medicine, Seattle, Washington, USA
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Hendrix JD, Patterson JW, Greer KE. Skin cancer associated with ichthyosis: the MAUIE syndrome. J Am Acad Dermatol 1997; 37:1000-2. [PMID: 9418775 DOI: 10.1016/s0190-9622(97)70084-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- J D Hendrix
- Department of Dermatology, University of Virginia School of Medicine, Charlottesville 22908, USA
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Schnur RE, Greenbaum BH, Heymann WR, Christensen K, Buck AS, Reid CS. Acute lymphoblastic leukemia in a child with the CHIME neuroectodermal dysplasia syndrome. ACTA ACUST UNITED AC 1997. [DOI: 10.1002/(sici)1096-8628(19971003)72:1<24::aid-ajmg5>3.0.co;2-v] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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