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SYNGAP1 encodes a neuronal Ras GTPase activating protein and is a significant risk gene associated with autism spectrum disorders (ASDs) and intellectual disability (ID). As many of the genetic mutations in individuals with SYNGAP1-related ID (SRID) lead to decreased SYNGAP1 expression, SRID is an ideal candidate for genetic and antisense oligonucleotide–based therapies that increase SYNGAP1 expression. Leveraging recently discovered regulatory mechanisms of SYNGAP1 expression, Richard Huganir’s team plans to design precision antisense oligonucleotides that increase SYNGAP1 expression and to validate them using human pluripotent stem cell models of SRID. These studies will help to advance the therapeutic potential of antisense oligonucleotide–based treatments for SRID as well as other monogenic forms of ID and ASD.