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Expression profiling of autism candidate genes during human brain development implicates central immune signaling
1Laboratory of Clinical and Developmental Genomics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America. ziatsm@mail.nih.gov
Plos One
|September 22, 2011
Summary
Autism Spectrum Disorder (ASD) research identifies immune signaling pathways involving NFκB, Tnf, and Jnk as central to the disorder. This study highlights glial cells and neurons in the developing brain as key players in ASD molecular mechanisms.
Area of Science:
- Neuroscience
- Genetics
- Immunology
Background:
- Autism Spectrum Disorders (ASD) are complex neurodevelopmental conditions with significant genetic contributions.
- The precise genetic and molecular underpinnings of ASD remain largely unknown due to genomic heterogeneity.
Purpose of the Study:
- To investigate gene interaction networks of ASD-implicated genes highly expressed in the developing brain.
- To identify core molecular mechanisms underlying ASD that may be obscured by genetic complexity.
Main Methods:
- In silico analysis of gene expression profiles from ASD-implicated genes in the developing human brain.
- Construction and analysis of interactome networks derived from highly expressed ASD-candidate genes.
Main Results:
- Identification of a subset of highly expressed ASD-candidate genes.
- Discovery that immune signaling pathways, including NFκB, Tnf, and Jnk, are central to ASD networks.
- Evidence suggesting the involvement of both glial cells and neurons in ASD pathogenesis.
Conclusions:
- ASD-implicated genes may converge on central cytokine signaling pathways.
- Immune signaling represents a potential core mechanism in the molecular etiology of ASD.
- Glial cells, alongside neurons, warrant consideration in future ASD research.
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