De novo mutations in SCN1A are the most common cause of Dravet syndrome (DS), an infantile-onset epileptic encephalopathy. In this study, human induced pluripotent stem cell (hiPSC) line FUi002-A was generated from skin fibroblasts obtained from a clinically diagnosed 26-year-old male DS patient with the R1525X variant of the SCN1A gene. Skin fibroblasts were reprogrammed using OriP/EBNA-1 based episomal plasmids expressing reprogramming factors expressing OCT4, SOX2, KLF-4, L-MYC, LIN28, and p53 shRNA. The transgene-free FUi002-A showed pluripotency, three germ layer differentiation capacity in vitro, and a normal karyotype. The resulting hiPSCs were heterozygous for the mutation in the SCN1A gene.
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http://dx.doi.org/10.1016/j.scr.2018.06.008 | DOI Listing |
Int J Mol Sci
December 2024
Institute of Neurology, Department of Medical and Surgical Sciences, University Magna Graecia, 88100 Catanzaro, Italy.
Pathogenic variants are associated with neonatal epilepsies, ranging from self-limited neonatal epilepsy to -developmental and epileptic encephalopathy (DEE). In this study, next-generation sequencing was performed, applying a panel of 142 epilepsy genes on three unrelated individuals and affected family members, showing a wide variability in the epileptic spectrum. The genetic analysis revealed two likely pathogenic missense variants (c.
View Article and Find Full Text PDFCephalalgia
January 2025
Department of Biomedicine, Health Aarhus University, Aarhus, Denmark.
Background: Familial hemiplegic migraine (FHM) types 1-3 are associated with protein-altering genetic variants in , and , respectively. These genes have also been linked to epilepsy. Previous studies primarily focused on phenotypes, examining genetic variants in individuals with characteristic FHM symptoms.
View Article and Find Full Text PDFFront Neurosci
December 2024
National Key Laboratory of Space Medicine, China Astronaut Research and Training Center, Beijing, China.
Hibernation, an adaptive mechanism to extreme environmental conditions, is prevalent among mammals. Its main characteristics include reduced body temperature and metabolic rate. However, the mechanisms by which hibernating animals re-enter deep sleep during the euthermic phase to sustain hibernation remain poorly understood.
View Article and Find Full Text PDFProstaglandins Other Lipid Mediat
December 2024
Discipline of Pharmacology, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2050, Australia; Lambert Initiative for Cannabinoid Therapeutics, The University of Sydney, NSW 2050, Australia; Brain and Mind Centre, The University of Sydney, NSW 2050, Australia. Electronic address:
Objective: Dravet syndrome is a severe, intractable epilepsy in which 80 % of patients have a de novo mutation in the gene SCN1A. We recently reported that a high seizure burden increased hippocampal concentrations of an array of pro-inflammatory prostaglandins in the Scn1a mouse model of Dravet syndrome. This raised the possibility that a high seizure burden might also trigger the accumulation of specialized pro-resolving mediators that facilitate the resolution of neuroinflammation and brain repair.
View Article and Find Full Text PDFWorld J Biol Psychiatry
December 2024
Division of Human Genetics, Department of Pathology, University of Cape Town, South Africa.
Objective: The aetiology of epilepsy is known to have genetic contributions, yet results from genome-wide association studies (GWAS) have not always been consistent. We undertook a systematic review in order to identify risk variants for epilepsy.
Methods: This systematic review was conducted in accordance with the PRISMA protocol.
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