Epilepsy-associated SCN2A-L1342P mutation drives network hyperexcitability and widespread transcriptomic changes in human cortical organoids.
These findings demonstrate that the Nav1.2-L1342P mutation drives a multifaceted disease phenotype, including network hyperexcitability and disruption of pathways related to neuronal and synaptic functions, which advances understanding of SCN2A-related developmental and epileptic encephalopathy (DEE).