Logo image
Long-term, cell type-specific effects of prenatal stress on dorsal striatum and relevant behaviors in mice
Preprint   Open access

Long-term, cell type-specific effects of prenatal stress on dorsal striatum and relevant behaviors in mice

Maya M Evans, Benjamin W Q Hing, Matthew A Weber, Sara V Maurer, Ahmed I Baig, Grace S Kim, Samantha L Anema, Rhett M Ellerbroek, Kartik Sivakumar, Jacob J Michaelson, …
bioRxiv
Cold Spring Harbor Laboratory
12/27/2024
DOI: 10.1101/2024.12.27.627207
PMCID: PMC11703269
PMID: 39763907
url
https://doi.org/10.1101/2024.12.27.627207View
Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Maternal stress during pregnancy, or prenatal stress, is a risk factor for neurodevelopmental disorders in offspring, including autism spectrum disorder (ASD). In ASD, dorsal striatum displays abnormalities correlating with symptom severity, but there is a gap in knowledge about dorsal striatal cellular and molecular mechanisms that may contribute. Using a mouse model, we investigated how prenatal stress impacted striatal-dependent behavior in adult offspring. We observed enhanced motor learning and earlier response times on an interval timing task, with accompanying changes in time-related medium spiny neuron (MSN) activity. We performed adult dorsal striatal single-cell RNA sequencing following prenatal stress which revealed differentially expressed genes (DEGs) in multiple cell types; downregulated DEGs were enriched for ribosome and translational pathways consistently in MSN subtypes, microglia, and somatostatin neurons. DEGs in MSN subtypes over-represented ASD risk genes and were enriched for synapse-related processes. These results provide insights into striatal alterations relevant to neurodevelopmental disorders.
Stress Pregnancy Neurophysiology Autism neurodevelopment striatum single-cell prenatal stress autism spectrum disorder neurodevelopmental disorders

Details

Metrics

13 Record Views
Logo image