دورية أكاديمية
KCNT1-related epilepsies and epileptic encephalopathies: phenotypic and mutational spectrum.
| العنوان: | KCNT1-related epilepsies and epileptic encephalopathies: phenotypic and mutational spectrum. |
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| المؤلفون: | Bonardi CM; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark.; Department of Woman's and Child's Health, University Hospital of Padua, 35100 Padua, Italy., Heyne HO; Finnish Institute for Molecular Medicine: FIMM, University of Helsinki, 00290 Helsinki, Finland.; Program for Medical and Population Genetics, Broad Institute of MIT and Harvard, 02142 Cambridge, MA, USA., Fiannacca M; Radiology Department, University of Genoa, 16126 Genoa, Italy., Fitzgerald MP; Division of Neurology, Departments of Neurology and Pediatrics, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA., Gardella E; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark.; Institute of Regional Health Research, University of Southern Denmark, 5230 Odense, Denmark., Gunning B; Stichting Epilepsie Instellingen Nederland, Zwolle, 8025 BV, The Netherlands., Olofsson K; Department of Pediatric Neurology, Danish Epilepsy Center, 4293 Dianalund, Denmark., Lesca G; Department of Genetics, Hospices Civils de Lyon, 69002 Bron, France.; Institut NeuroMyoGène, CNRS UMR 5310 - INSERM U1217, Université Claude Bernard Lyon 1, 69008 Lyon, France., Verbeek N; Department of Genetics, University Medical Center, 3584 CX Utrecht, The Netherlands., Stamberger H; Neurogenetics Group, VIB-Center for Molecular Neurology, B-2610 Antwerp, Belgium.; Department of Neurology, University Hospital, 2650 Antwerp, Belgium., Striano P; IRCCS 'G. Gaslini' Institute, University of Genoa, 16147 Genoa, Italy., Zara F; IRCCS 'G. Gaslini' Institute, University of Genoa, 16147 Genoa, Italy., Mancardi MM; Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy., Nava C; Département de Génétique, APHP, GH Pitié-Salpêtrière, 75013 Paris, France., Syrbe S; Division of Pediatric Epileptology, Centre for Paediatrics and Adolescent Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany., Buono S; Neurology Division, Hospital of National Relevance (AORN), Santobono Pausilipon, 80122 Naples, Italy., Baulac S; Sorbonne Université, Institut du Cerveau-Paris Brain Institute-ICM, Inserm, CNRS, F-75013, Paris, France., Coppola A; Department of Neuroscience and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy., Weckhuysen S; Neurogenetics Group, VIB-Center for Molecular Neurology, B-2610 Antwerp, Belgium.; Department of Neurology, University Hospital, 2650 Antwerp, Belgium., Schoonjans AS; Department of Pediatric Neurology, Antwerp University Hospital, University of Antwerp, 2650 Edegem, Belgium., Ceulemans B; Department of Pediatric Neurology, Antwerp University Hospital, University of Antwerp, 2650 Edegem, Belgium., Sarret C; Service de Neuropédiatrie, CHU de Clermont-Ferrand, 6310 Clermont-Ferrand, France., Baumgartner T; Department of Epileptology, University of Bonn, D-53105 Bonn, Germany., Muhle H; Department of Neuropediatrics, University Medical Center Schleswig Holstein, 24105 Kiel, Germany., Portes VD; Neuropaediatrics Department, Femme Mère Enfant Hospital, 69500 Lyon, France., Toulouse J; Epileptology, Sleep Disorders and Functional Pediatric Neurology CHU Lyon, 69500 Bron, France., Nougues MC; Neuropaediatrics Department, Hospital Armand Trousseau, APHP, 75012 Paris, France., Rossi M; Department of Genetics, Hospices Civils de Lyon, 69002 Bron, France.; Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR5292, GENDEV Team, Claude Bernard Lyon 1 University, 69675 Bron, France., Demarquay G; Service de neurologie fonctionnelle et épileptologie, Neurological Hospital, 69677 Bron, France.; Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR5292, NeuroPain, 69677 Bron, France., Ville D; Pediatric Neurology Department, Lyon University Hospital, 69500 Bron, France., Hirsch E; Epilepsy Unit, Hautepierre Hospital, University of Strasbourg, 67100 Strasbourg, France., Maurey H; Department of Pediatric Neurology, Hopital Bicêtre, Le Kremlin-Bicêtre, 94270 Paris, France., Willems M; Department of Clinical Genetics, Arnaud de Villeneuve Hospital, 34090 Montpellier, France., de Bellescize J; Department of Pediatric Clinical Epileptology, Sleep Disorders and Functional Neurology, Hospices Civils de Lyon, 69677 Bron, Lyon, France., Altuzarra CD; Department of Pediatrics, St. Jacques Hospital, 25000 Besançon, France., Villeneuve N; Pediatric Neurology Department, Timone Children Hospital, 13005 Marseille, France., Bartolomei F; Epileptology Department, Timone Hospital, Public Assistance Hospitals of Marseille, Aix-Marseille University, 13005 Marseille, France., Picard F; Department of Clinical Neurosciences, University Hospitals and Faculty of Medicine, CH-1211 Geneva, Switzerland., Hornemann F; Centre of Pediatric Research, Hospital for Children and Adolescents, 04103 Leipzig, Germany., Koolen DA; Department of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center (Radboudumc), 6525 GA Nijmegen, The Netherlands., Kroes HY; Department of Genetics, University Medical Center, 3584 CX Utrecht, The Netherlands., Reale C; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark.; Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy., Fenger CD; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark., Tan WH; Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA., Dibbens L; Epilepsy Research Group, UniSA Clinical and Health Sciences, University of South Australia, and Australian Centre for Precision Health, SA 5001 Adelaide, Australia., Bearden DR; Division of Child Neurology, Department of Neurology, University of Rochester School of Medicine, Rochester, NY14642, USA., Møller RS; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark.; Institute of Regional Health Research, University of Southern Denmark, 5230 Odense, Denmark., Rubboli G; Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Centre, member of the ERN EpiCARE, 4293 Dianalund, Denmark.; Institute of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark. |
| المصدر: | Brain : a journal of neurology [Brain] 2021 Dec 31; Vol. 144 (12), pp. 3635-3650. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 0372537 Publication Model: Print Cited Medium: Internet ISSN: 1460-2156 (Electronic) Linking ISSN: 00068950 NLM ISO Abbreviation: Brain Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Oxford University Press Original Publication: London. |
| مواضيع طبية MeSH: | Epilepsy/*genetics , Nerve Tissue Proteins/*genetics , Potassium Channels, Sodium-Activated/*genetics, Adolescent ; Child ; Child, Preschool ; Cohort Studies ; Female ; Genotype ; Humans ; Infant ; Male ; Mutation ; Phenotype ; Young Adult |
| مستخلص: | Variants in KCNT1, encoding a sodium-gated potassium channel (subfamily T member 1), have been associated with a spectrum of epilepsies and neurodevelopmental disorders. These range from familial autosomal dominant or sporadic sleep-related hypermotor epilepsy to epilepsy of infancy with migrating focal seizures (EIMFS) and include developmental and epileptic encephalopathies. This study aims to provide a comprehensive overview of the phenotypic and genotypic spectrum of KCNT1 mutation-related epileptic disorders in 248 individuals, including 66 previously unpublished and 182 published cases, the largest cohort reported so far. Four phenotypic groups emerged from our analysis: (i) EIMFS (152 individuals, 33 previously unpublished); (ii) developmental and epileptic encephalopathies other than EIMFS (non-EIMFS developmental and epileptic encephalopathies) (37 individuals, 17 unpublished); (iii) autosomal dominant or sporadic sleep-related hypermotor epilepsy (53 patients, 14 unpublished); and (iv) other phenotypes (six individuals, two unpublished). In our cohort of 66 new cases, the most common phenotypic features were: (i) in EIMFS, heterogeneity of seizure types, including epileptic spasms, epilepsy improvement over time, no epilepsy-related deaths; (ii) in non-EIMFS developmental and epileptic encephalopathies, possible onset with West syndrome, occurrence of atypical absences, possible evolution to developmental and epileptic encephalopathies with sleep-related hypermotor epilepsy features; one case of sudden unexplained death in epilepsy; (iii) in autosomal dominant or sporadic sleep-related hypermotor epilepsy, we observed a high prevalence of drug-resistance, although seizure frequency improved with age in some individuals, appearance of cognitive regression after seizure onset in all patients, no reported severe psychiatric disorders, although behavioural/psychiatric comorbidities were reported in ∼50% of the patients, sudden unexplained death in epilepsy in one individual; and (iv) other phenotypes in individuals with mutation of KCNT1 included temporal lobe epilepsy, and epilepsy with tonic-clonic seizures and cognitive regression. Genotypic analysis of the whole cohort of 248 individuals showed only missense mutations and one inframe deletion in KCNT1. Although the KCNT1 mutations in affected individuals were seen to be distributed among the different domains of the KCNT1 protein, genotype-phenotype considerations showed many of the autosomal dominant or sporadic sleep-related hypermotor epilepsy-associated mutations to be clustered around the RCK2 domain in the C terminus, distal to the NADP domain. Mutations associated with EIMFS/non-EIMFS developmental and epileptic encephalopathies did not show a particular pattern of distribution in the KCNT1 protein. Recurrent KCNT1 mutations were seen to be associated with both severe and less severe phenotypes. Our study further defines and broadens the phenotypic and genotypic spectrums of KCNT1-related epileptic conditions and emphasizes the increasingly important role of this gene in the pathogenesis of early onset developmental and epileptic encephalopathies as well as of focal epilepsies, namely autosomal dominant or sporadic sleep-related hypermotor epilepsy. (© The Author(s) (2021). Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For permissions, please email: journals.permissions@oup.com.) |
| التعليقات: | Comment in: Epilepsy Curr. 2022 Apr 14;22(5):291-293. (PMID: 36285205) |
| معلومات مُعتمدة: | 682345 International ERC_ European Research Council |
| فهرسة مساهمة: | Keywords: KCNT1; developmental and epileptic encephalopathies; epilepsy of infancy with migrating focal seizures; epileptic encephalopathies; sleep-related hypermotor epilepsy |
| المشرفين على المادة: | 0 (KCNT1 protein, human) 0 (Nerve Tissue Proteins) 0 (Potassium Channels, Sodium-Activated) |
| تواريخ الأحداث: | Date Created: 20210611 Date Completed: 20220222 Latest Revision: 20221026 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1093/brain/awab219 |
| PMID: | 34114611 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1460-2156 |
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| DOI: | 10.1093/brain/awab219 |