ArticleMolecular psychiatry2026
Shank3 related oligodendrocyte alterations in autism are restored by Erk pathway inhibition.
Article in Molecular psychiatry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Review
- Myelin dysfunction in autism spectrum disorder: insights into core symptoms and mechanisms of brain development.Molecular psychiatry · 2026Review
- Unraveling the Genetic and Molecular Architecture of Autism Spectrum Disorder: Implications for Clinical Genetics and Genomic Diagnostics.International journal of molecular sciences · 2026Review
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Authors and funding
6 authors.
Funding
Abstract
White matter abnormalities are consistently observed in Shank3-related autism spectrum disorders (ASD), yet the mechanisms underlying oligodendrocyte dysfunction and myelination deficits remain poorly characterized. Here, we demonstrate that Shank3 deficiency disrupts oligodendrocyte development by promoting oligodendrocyte precursor cell (OPC) proliferation while impairing functional maturation and myelination. Mechanistically, Shank3 deficiency induced hyperactivation of the Erk signalling pathway, which compromised oligodendrocyte maturation and contributes to hypomyelination. Pharmacological inhibition of the Erk pathway effectively restored oligodendrocyte maturation in vitro, rescued myelination deficits in vivo, and partially improved autism-related behaviors and motor function in Shank3-deficient mice. Transcriptomic analyses furtherly revealed dysregulation of Wnt signalling, particularly the upregulation of Wnt5a, a key ligand of the non-canonical Wnt pathway, in Shank3-deficient oligodendrocytes. Consistently, Wnt5a treatment was found to activate Erk signalling in primary oligodendrocytes and replicate the observed myelination deficits. These findings uncover the Wnt5a-Erk axis as a critical regulator of oligodendrocyte dysfunction in Shank3-related ASD and highlight its therapeutic potential for addressing associated white matter deficits.
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