Cortical development dynamics across autism spectrum disorder mouse models

Researchers identified transient, stage-specific disruptions in early brain development linked to autism spectrum disorder (ASD) gene mutations on June 17, 2026. The study, published in Nature, utilized single-nucleus multi-omic sequencing to analyze mouse models of ASD. These findings indicate that various gene mutations associated with ASD converge on similar critical developmental windows, affecting neuronal differentiation and circuit formation. Furthermore, the research uncovered significant sex-specific gene expression alterations, suggesting that the biological pathways underlying ASD may differ between males and females. This sex-specific divergence begins in early neurodevelopment and could contribute to observed differences in ASD prevalence and symptom presentation. The study's detailed molecular analysis provides a new framework for understanding the complex genetic architecture of ASD and opens avenues for developing targeted therapeutic interventions. By pinpointing specific developmental stages and molecular mechanisms, the research offers a more nuanced view of how genetic predispositions translate into neurodevelopmental differences characteristic of ASD.