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- Title
The genetic and neurobiologic compass points toward common signaling dysfunctions in autism spectrum disorders.
- Authors
Levitt, Pat; Campbell, Daniel B
- Abstract
Autism spectrum disorder (ASD) is a common neurodevelopmental disorder with high heritability. Here, we discuss data supporting the view that there are at least two distinct genetic etiologies for ASD: rare, private (de novo) single gene mutations that may have a large effect in causing ASD; and inherited, common functional variants of a combination of genes, each having a small to moderate effect in increasing ASD risk. It also is possible that a combination of the two mechanisms may occur in some individuals with ASD. We further discuss evidence from individuals with a number of different neurodevelopmental syndromes, in which there is a high prevalence of ASD, that some private mutations and common variants converge on dysfunctional ERK and PI3K signaling, which negatively impacts neurodevelopmental events regulated by some receptor tyrosine kinases.
- Publication
The Journal of clinical investigation, 2009, Vol 119, Issue 4, p747
- ISSN
1558-8238
- Publication type
Journal Article
- DOI
10.1172/JCI37934