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Ferretti A, Furlan M, Glinton KE, Fenger CD, Boschann F, Amlie-Wolf L, Zeidler S, Moretti R, Stoltenburg C, Tarquinio DC, Furia F, Parisi P, Rubboli G, Devinsky O, Mignot C, Gripp KW, Møller RS, Yang Y, Stankiewicz P, Gardella E. Epilepsy as a Novel Phenotype of BPTF-Related Disorders. Pediatr Neurol 2024; 158:17-25. [PMID: 38936258 DOI: 10.1016/j.pediatrneurol.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 05/15/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Neurodevelopmental disorder with dysmorphic facies and distal limb anomalies (NEDDFL) is associated to BPTF gene haploinsufficiency. Epilepsy was not included in the initial descriptions of NEDDFL, but emerging evidence indicates that epileptic seizures occur in some affected individuals. This study aims to investigate the electroclinical epilepsy features in individuals with NEDDFL. METHODS We enrolled individuals with BPTF-related seizures or interictal epileptiform discharges (IEDs) on electroencephalography (EEG). Demographic, clinical, genetic, raw EEG, and neuroimaging data as well as response to antiseizure medication were assessed. RESULTS We studied 11 individuals with a null variant in BPTF, including five previously unpublished ones. Median age at last observation was 9 years (range: 4 to 43 years). Eight individuals had epilepsy, one had a single unprovoked seizure, and two showed IEDs only. Key features included (1) early childhood epilepsy onset (median 4 years, range: 10 months to 7 years), (2) well-organized EEG background (all cases) and brief bursts of spikes and slow waves (50% of individuals), and (3) developmental delay preceding seizure onset. Spectrum of epilepsy severity varied from drug-resistant epilepsy (27%) to isolated IEDs without seizures (18%). Levetiracetam was widely used and reduced seizure frequency in 67% of the cases. CONCLUSIONS Our study provides the first characterization of BPTF-related epilepsy. Early-childhood-onset epilepsy occurs in 19% of subjects, all presenting with a well-organized EEG background associated with generalized interictal epileptiform abnormalities in half of these cases. Drug resistance is rare.
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Affiliation(s)
- Alessandro Ferretti
- Pediatrics Unit, Faculty of Medicine and Psychology, Department of Neuroscience, Mental Health and Sense Organs (NESMOS), Sapienza University of Rome, Rome, Italy; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark
| | - Margherita Furlan
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Kevin E Glinton
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Christina D Fenger
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Amplexa Genetics A/S, Odense, Denmark
| | - Felix Boschann
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institut für Medizinische Genetik und Humangenetik, Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Louise Amlie-Wolf
- Division of Medical Genetics, Nemours Children's Health, Wilmington, Delaware
| | - Shimriet Zeidler
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Raffaella Moretti
- APHP-Sorbonne Université, Département de Génétique, Hôpital Trousseau et Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Corinna Stoltenburg
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Sozialpädiatrisches Zentrum Neuropädiatrie, Berlin, Germany
| | - Daniel C Tarquinio
- Rett Syndrome Clinic, Center for Rare Neurological Diseases, Norcross, Georgia
| | - Francesca Furia
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Faculty of Health Sciences, Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Pasquale Parisi
- Pediatrics Unit, Faculty of Medicine and Psychology, Department of Neuroscience, Mental Health and Sense Organs (NESMOS), Sapienza University of Rome, Rome, Italy
| | - Guido Rubboli
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Member of ERN EpiCARE
| | - Orrin Devinsky
- NYU Langone Epilepsy Center, Department of Neurology, NYU Grossman School of Medicine, New York City, New York
| | - Cyril Mignot
- APHP-Sorbonne Université, Département de Génétique, Hôpital Trousseau et Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Karen W Gripp
- Division of Medical Genetics, Nemours Children's Health, Wilmington, Delaware
| | - Rikke S Møller
- Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Faculty of Health Sciences, Department of Regional Health Research, University of Southern Denmark, Odense, Denmark; Member of ERN EpiCARE
| | - Yaping Yang
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, Texas; AiLife Diagnostics, Pearland, Texas
| | - Pawel Stankiewicz
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, Texas
| | - Elena Gardella
- Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; Department of Epilepsy Genetics and Personalized Medicine, Danish Epilepsy Centre, Dianalund, Denmark; Faculty of Health Sciences, Department of Regional Health Research, University of Southern Denmark, Odense, Denmark; Member of ERN EpiCARE.
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Negrutskii BS, Porubleva LV, Malinowska A, Novosylna OV, Dadlez M, Knudsen CR. Understanding functions of eEF1 translation elongation factors beyond translation. A proteomic approach. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 138:67-99. [PMID: 38220433 DOI: 10.1016/bs.apcsb.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Mammalian translation elongation factors eEF1A1 and eEF1A2 are 92% homologous isoforms whose mutually exclusive tissue-specific expression is regulated during development. The isoforms have similar translation functionality, but show differences in spatial organization and participation in various processes, such as oncogenesis and virus reproduction. The differences may be due to their ability to interact with isoform-specific partner proteins. We used the identified sets of eEF1A1 or eEF1A2 partner proteins to identify cell complexes and/or processes specific to one particular isoform. As a result, we found isoform-specific interactions reflecting the involvement of different eEF1A isoforms in different cellular processes, including actin-related, chromatin-remodeling, ribonuclease H2, adenylyl cyclase, and Cul3-RING ubiquitin ligase complexes as well as initiation of mitochondrial transcription. An essential by-product of our analysis is the elucidation of a number of cellular processes beyond protein biosynthesis, where both isoforms appear to participate such as large ribosomal subunit biogenesis, mRNA splicing, DNA mismatch repair, 26S proteasome activity, P-body and exosomes formation, protein targeting to the membrane. This information suggests that a relatively high content of eEF1A in the cell may be necessary not only to maintain efficient translation, but also to ensure its participation in various cellular processes, where some roles of eEF1A have not yet been described. We believe that the data presented here will be useful for deciphering new auxiliary functions of eEF1A and its isoforms, and provide a new look at the known non-canonical functions of this main component of the human translation-elongation machinery.
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Affiliation(s)
- Boris S Negrutskii
- Institute of Molecular Biology and Genetics, Kyiv, Ukraine; Aarhus Institute of Advanced Sciences, Høegh-Guldbergs, Aarhus C, Denmark; Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen, Aarhus C, Denmark.
| | | | - Agata Malinowska
- Institute of Biochemistry and Biophysics, PAN, Pawinskiego, Warsaw, Poland
| | | | - Michal Dadlez
- Institute of Biochemistry and Biophysics, PAN, Pawinskiego, Warsaw, Poland
| | - Charlotte R Knudsen
- Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen, Aarhus C, Denmark
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Picketts D, Mirzaa G, Yan K, Relator R, Timpano S, Yalcin B, Collins S, Ziegler A, Pao E, Oyama N, Brischoux-Boucher E, Piard J, Monaghan K, Sacoto MG, Dobyns W, Park K, Fernández-Mayoralas D, Fernández-Jaén A, Jayakar P, Brusco A, Antona V, Giorgio E, Kvarnung M, Isidor B, Conrad S, Cogné B, Deb W, Stuurman KE, Sterbova K, Smal N, Weckhuysen S, Oegema R, Innes M, Latsko M, Ben-Omran T, Yeh R, Kruer M, Bakhtiari S, Papavasiliou A, Moutton S, Nambot S, Chanprasert S, Paolucci S, Miller K, Burton B, Kim K, O'Heir E, Bruwer Z, Donald K, Kleefstra T, Goldstein A, Angle B, Bontempo K, Miny P, Joset P, Demurger F, Hobson E, Pang L, Carpenter L, Li D, Bonneau D, Sadikovic B. Pathogenic variants in SMARCA1 cause an X-linked neurodevelopmental disorder modulated by NURF complex composition. RESEARCH SQUARE 2023:rs.3.rs-3317938. [PMID: 37841849 PMCID: PMC10571636 DOI: 10.21203/rs.3.rs-3317938/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Pathogenic variants in ATP-dependent chromatin remodeling proteins are a recurrent cause of neurodevelopmental disorders (NDDs). The NURF complex consists of BPTF and either the SNF2H (SMARCA5) or SNF2L (SMARCA1) ISWI-chromatin remodeling enzyme. Pathogenic variants in BPTF and SMARCA5 were previously implicated in NDDs. Here, we describe 40 individuals from 30 families with de novo or maternally inherited pathogenic variants in SMARCA1. This novel NDD was associated with mild to severe ID/DD, delayed or regressive speech development, and some recurrent facial dysmorphisms. Individuals carrying SMARCA1 loss-of-function variants exhibited a mild genome-wide DNA methylation profile and a high penetrance of macrocephaly. Genetic dissection of the NURF complex using Smarca1, Smarca5, and Bptfsingle and double mouse knockouts revealed the importance of NURF composition and dosage for proper forebrain development. Finally, we propose that genetic alterations affecting different NURF components result in a NDD with a broad clinical spectrum.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Emily Pao
- Seattle Children's Research Institute
| | | | | | | | | | | | | | - Kristen Park
- University of Colorado Denver School of Medicine
| | | | - Alberto Fernández-Jaén
- Department of Pediatrics and Neurology, Hospital Universitario Quirónsalud, School of Medicine, Universidad Europea de Madrid
| | - Parul Jayakar
- Division of Genetics and Metabolism, Nicklaus Children's Hospital
| | | | | | | | | | | | | | | | | | - K E Stuurman
- Department of Clinical Genetics, Erasmus University Medical Center
| | | | | | | | | | | | - Maeson Latsko
- The Steve and Cindy Rasmussen Institute for Genomic Medicine
| | | | | | | | | | | | | | - Sophie Nambot
- Centre de Génétique et Centre de référence «Anomalies du Développement et Syndromes Malformatifs», Hôpital d'Enfants, Centre Hospitalier
| | | | | | | | | | | | | | | | - Kirsten Donald
- Division of Developmental Paediatrics, Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, Klipfontein Road/Private Bag, Rondebosch, 7700/7701, Cape Town, South A
| | | | | | | | | | | | | | | | | | | | | | - Dong Li
- The Children's Hospital of Philadelphia
| | - Dominique Bonneau
- Department of Biochemistry and Genetics, University Hospital of Angers, F-49000
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