Developmental and epileptic encephalopathies: from genetic heterogeneity to phenotypic continuum

R Guerrini, V Conti, M Mantegazza… - Physiological …, 2023 - journals.physiology.org
Developmental and epileptic encephalopathies (DEEs) are a heterogeneous group of
disorders characterized by early-onset, often severe epileptic seizures and EEG …

Mechanisms of copy number variants in neuropsychiatric disorders: From genes to therapeutics

MP Forrest, P Penzes - Current opinion in neurobiology, 2023 - Elsevier
Copy number variants (CNVs) are genomic imbalances strongly linked to the aetiology of
neuropsychiatric disorders such as schizophrenia and autism. By virtue of their large size …

[HTML][HTML] Paradoxical hyperexcitability from NaV1. 2 sodium channel loss in neocortical pyramidal cells

PWE Spratt, RPD Alexander, R Ben-Shalom… - Cell Reports, 2021 - cell.com
Loss-of-function variants in the gene SCN2A, which encodes the sodium channel Na V 1.2,
are strongly associated with autism spectrum disorder and intellectual disability. An …

Hyperexcitability and pharmacological responsiveness of cortical neurons derived from human iPSCs carrying epilepsy-associated sodium channel Nav1. 2-L1342P …

Z Que, MI Olivero-Acosta, J Zhang, M Eaton… - Journal of …, 2021 - Soc Neuroscience
With the wide adoption of genomic sequencing in children having seizures, an increasing
number of SCN2A genetic variants have been revealed as genetic causes of epilepsy …

Functional correlates of clinical phenotype and severity in recurrent SCN2A variants

G Berecki, KB Howell, J Heighway, N Olivier… - Communications …, 2022 - nature.com
In SCN2A-related disorders, there is an urgent demand to establish efficient methods for
determining the gain-(GoF) or loss-of-function (LoF) character of variants, to identify suitable …

Pathogenic SCN2A variants cause early-stage dysfunction in patient-derived neurons

R Asadollahi, I Delvendahl, R Muff, G Tan… - Human Molecular …, 2023 - academic.oup.com
Pathogenic heterozygous variants in SCN2A, which encodes the neuronal sodium channel
Na V 1.2, cause different types of epilepsy or intellectual disability (ID)/autism without …

Microglial over-pruning of synapses during development in autism-associated SCN2A-deficient mice and human cerebral organoids

J Wu, J Zhang, X Chen, K Wettschurack, Z Que… - Molecular …, 2024 - nature.com
Autism spectrum disorder (ASD) is a major neurodevelopmental disorder affecting 1 in 36
children in the United States. While neurons have been the focus of understanding ASD, an …

[HTML][HTML] Epilepsy-associated SCN2A (NaV1. 2) variants exhibit diverse and complex functional properties

CH Thompson, F Potet, TV Abramova… - The Journal of …, 2023 - ncbi.nlm.nih.gov
Pathogenic variants in voltage-gated sodium (Na V) channel genes including SCN2A,
encoding Na V 1.2, are discovered frequently in neurodevelopmental disorders with or …

[HTML][HTML] Deficiency of autism-related Scn2a gene in mice disrupts sleep patterns and circadian rhythms

Z Ma, M Eaton, Y Liu, J Zhang, X Chen, X Tu, Y Shi… - Neurobiology of …, 2022 - Elsevier
Autism spectrum disorder (ASD) affects~ 2% of the population in the US, and monogenic
forms of ASD often result in the most severe manifestation of the disorder. Recently, SCN2A …

Cellular and behavioral effects of altered NaV1.2 sodium channel ion permeability in Scn2aK1422E mice

DM Echevarria-Cooper, NA Hawkins… - Human molecular …, 2022 - academic.oup.com
Genetic variants in SCN2A, encoding the NaV1. 2 voltage-gated sodium channel, are
associated with a range of neurodevelopmental disorders with overlapping phenotypes …