Ontology highlight
ABSTRACT: Autism spectrum disorder (ASD) is characterized by core deficits in social behavior, yet effective interventions remain limited. Ketogenic diet (KD) shows behavioral benefits in ASD, but the underlying mechanisms remain unclear. Here, using Shank3B knockout (KO) mice, we find that KD induces systemic ketosis with marked elevation of β-hydroxybutyrate (BHB). Oral BHB alone recapitulates KD's prosocial effects, restoring social interaction and neuronal activity in the anterior cingulate cortex (ACC). Mechanistically, we identify HDAC9 as a region- and cell type–specific epigenetic target upregulated in ACC neurons of Shank3B KO mice and suppressed by BHB. HDAC9 overexpression in ACC neurons induces social and synaptic deficits, while class IIa HDAC inhibition phenocopies BHB effects. BHB also restores dendritic complexity, excitatory transmission, and AMPA receptor expression. These findings uncover a metabolite-driven epigenetic mechanism linking ketogenic metabolism to circuit-level rescue of social behavior, highlighting HDAC9 as a therapeutically actionable target for ASD.
INSTRUMENT(S): Liquid Chromatography MS - alternating - reverse-phase
PROVIDER: MTBLS14381 | MetaboLights | 2026-07-08
REPOSITORIES: MetaboLights
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| m_MTBLS14381_LC-MS_alternating_reverse-phase_v2_maf.tsv | Tabular | |||
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