SCN8A (Nav1.6) and DEE: mouse models and pre-clinical therapies
Prof
University of Michigan
Event Information
Host
Clinical and Experimental Epilepsy
Duration
70 minutes
Abstract
SCN8A encodes a major voltage-gated sodium channel expressed in CNS and PNS neurons. Gain-of-function and loss-of-function mutations contribute to human disorders, most notably Developmental and Epileptic Encephalophy (DEE). More than 600 affected individuals have been reported, with the most common mechanism of de novo, gain-of-function mutations. We have developed constitutive and conditional models of gain- and loss- of function mutations in the mouse and characterized the effects of on neuronal firing and neurological phenotypes. Using CRE lines with cellular and developmental specificity, we have probed the effects of activating mutant alleles in various classes of neurons in the developing and adult mouse. Most recently, we are testing genetic therapies that reduce the expression of gain-of-function mutant alleles. We are comparing the effectiveness of allele specific oligos (ASOs), viral delivery of shRNAs, and allele-specific targeting of mutant alleles using Crispr/Cas9 in mouse models of DEE.
Topics
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