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Channelopathy pathogenesis in autism spectrum disorders.
1Department of Physiology and Biophysics, University of California Irvine, CA, USA ; UCI Center for Autism Research and Treatment, School of Medicine, University of California Irvine, CA, USA.
Frontiers in Genetics
|November 9, 2013
Summary
Ion channel gene defects, or channelopathies, are increasingly linked to autism spectrum disorder (ASD) development. This review focuses on calcium signaling pathways and their downstream effects in ASD pathogenesis.
Area of Science:
- Neuroscience
- Genetics
- Developmental Biology
Background:
- Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by social interaction deficits and repetitive behaviors.
- ASD has high heritability, suggesting a strong genetic component.
- Growing evidence implicates ion channel gene defects (channelopathies) in ASD pathogenesis.
Purpose of the Study:
- To summarize current evidence on the role of ion channel gene defects in autism.
- To specifically highlight the involvement of calcium signaling and its downstream effects.
Main Methods:
- Review of existing literature and genetic studies.
- Analysis of genome-wide association studies (GWAS) and sequencing data.
- Examination of animal models with relevant genetic variations.
Main Results:
- Genetic variations in calcium, sodium, and potassium channels are associated with ASD susceptibility.
- These findings are consistent with associations found in other neuropsychiatric disorders like bipolar disorder and schizophrenia.
- Animal models with these channel gene variations exhibit autistic endophenotypes.
Conclusions:
- Ion channel dysfunction, particularly in calcium signaling, plays a significant role in the pathogenesis of ASD.
- Understanding these channelopathies offers insights into ASD mechanisms and potential therapeutic targets.
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