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Yates TM, Campeau PM, Ghoumid J, Kibaek M, Larsen MJ, Smol T, Albaba S, Hertz JM, Balasubramanian M. Biallelic variants in GLE1 with survival beyond neonatal period. Clin Genet 2020; 98:622-625. [PMID: 32954510 DOI: 10.1111/cge.13841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 11/29/2022]
Affiliation(s)
- T Michael Yates
- The University of Edinburgh MRC Human Genetics Unit, Edinburgh, UK
| | - Philippe M Campeau
- Department of Pediatrics, Sainte-Justine Hospital, University of Montreal, Montréal, Canada
| | - Jamal Ghoumid
- CHU Lille, Clinique de Génétique Guy Fontaine, Lille, France
| | - Maria Kibaek
- Department of Pediatrics, Odense University Hospital, Odense, Denmark
| | - Martin J Larsen
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Thomas Smol
- CHU Lille, Institut de Génétique Médicale, Lille, France
| | - Sami Albaba
- Sheffield Diagnostic Genetics Service, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - Jens Michael Hertz
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | - Meena Balasubramanian
- Sheffield Clinical Genetics Service, Sheffield Children's NHS Foundation Trust, Sheffield, UK.,Academic Unit of Child Health, Department of Oncology & Metabolism, University of Sheffield, Sheffield, UK
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Cerino M, Di Meglio C, Albertini F, Audic F, Riccardi F, Boulay C, Philip N, Bartoli M, Lévy N, Krahn M, Chabrol B. Extension of the phenotypic spectrum of GLE1-related disorders to a mild congenital form resembling congenital myopathy. Mol Genet Genomic Med 2020; 8:e1277. [PMID: 32537934 PMCID: PMC7434744 DOI: 10.1002/mgg3.1277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 03/31/2020] [Indexed: 12/12/2022] Open
Abstract
Background GLE1 (GLE1, RNA Export Mediator, OMIM#603371) variants are associated with severe autosomal recessive motor neuron diseases, that are lethal congenital contracture syndrome 1 (LCCS1, OMIM#253310) and congenital arthrogryposis with anterior horn cell disease (CAAHD, OMIM#611890). The clinical spectrum of GLE1‐related disorders has been expanding these past years, including with adult‐onset amyotrophic lateral sclerosis (ALS) GLE1‐related forms, especially through the new molecular diagnosis strategies associated with the emergence of next‐generation sequencing (NGS) technologies. However, despite this phenotypic variability, reported congenital or ALS adult‐onset forms remain severe, leading to premature death. Methods Through multidisciplinary interactions between our Neuropediatric and Medical Genetics departments, we were able to diagnose two siblings presenting with congenital disorder, using an NGS approach accordingly to the novel French national recommendations. Results Two siblings with very similar clinical features, meaning neuromuscular disorder of neonatal onset with progressive improvement, were examined in our Neuropediatrics department. The clinical presentation evoked initially congenital myopathy with autosomal recessive inheritance. However, additional symptoms such as mild dysmorphic features including high anterior hairline, downslanted palpebral fissures, anteverted nares, smooth philtrum with thin upper‐lip, narrow mouth and microretrognathia or delayed expressive language and postnatal growth retardation were suggestive of a more complex clinical presentation and molecular diagnosis. Our NGS approach revealed an unexpected molecular diagnosis for these two siblings, meaning the presence of the homozygous c.1808G>T GLE1 variant. Conclusions We here report the mildest phenotype ever described, in two siblings carrying the homozygous c.1808G>T GLE1 variant, further widening the clinical spectrum of GLE1‐related diseases. Moreover, by reflecting current medical practice, this case report confirms the importance of establishing regular multidisciplinary meetings, essential for discussing such difficult clinical presentations to finally enable molecular diagnosis, especially when NGS technologies are used.
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Affiliation(s)
- Mathieu Cerino
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,APHM, Hôpital Timone Enfants, Département de Génétique Médicale, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France.,APHM, Hôpital de la Conception, Laboratoire de Biochimie, Marseille, France
| | - Chloé Di Meglio
- APHM, Hôpital Timone Enfants, Service de Neurologie Pédiatrique, Marseille, France
| | - Francesca Albertini
- APHM, Hôpital Timone Enfants, Service de Neurologie Pédiatrique, Marseille, France
| | - Frédérique Audic
- APHM, Hôpital Timone Enfants, Service de Neurologie Pédiatrique, Marseille, France
| | - Florence Riccardi
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,APHM, Hôpital Timone Enfants, Département de Génétique Médicale, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France
| | - Christophe Boulay
- APHM, Hôpital Timone Enfants, Service de Neurologie Pédiatrique, Marseille, France
| | - Nicole Philip
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,APHM, Hôpital Timone Enfants, Département de Génétique Médicale, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France
| | - Marc Bartoli
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France
| | - Nicolas Lévy
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,APHM, Hôpital Timone Enfants, Département de Génétique Médicale, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France
| | - Martin Krahn
- Aix Marseille Univ, Inserm, U1251-MMG, Marseille Medical Genetics, Marseille, France.,APHM, Hôpital Timone Enfants, Département de Génétique Médicale, Marseille, France.,GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France
| | - Brigitte Chabrol
- GIPTIS (Genetics Institute for Patients, Therapies Innovation and Science), Marseille, France.,APHM, Hôpital Timone Enfants, Service de Neurologie Pédiatrique, Marseille, France
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