Cortical development dynamics across autism spectrum disorder mouse models

Researchers identified transient, stage-specific disruptions in early brain development across diverse autism spectrum disorder (ASD)-linked gene mutations on June 17, 2026. The study, published in Nature, utilized single-nucleus multi-omic sequencing to analyze these disruptions. Findings revealed sex-specific gene expression alterations, suggesting distinct developmental trajectories influenced by genetic factors in ASD mouse models. This convergence of mutations points to critical windows in cortical development that are particularly vulnerable to genetic perturbations. The research provides a deeper understanding of the molecular mechanisms underlying ASD, potentially paving the way for targeted therapeutic interventions. By examining gene expression at a single-nucleus level, the team was able to pinpoint cellular and temporal dynamics that were previously obscured in bulk tissue analyses. The implications of these sex-specific findings are significant, as they may explain observed differences in ASD prevalence and symptom presentation between males and females. This work represents a significant step forward in unraveling the complex genetic architecture of autism spectrum disorder.