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Single-Cell Analysis of Foxp1-Driven Mechanisms Essential for Striatal Development
Ashley G Anderson1, Ashwinikumar Kulkarni1, Matthew Harper1
1Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390-9111, USA.
Cell Reports
|March 5, 2020
Summary
The transcription factor Foxp1 shapes the developing striatum by controlling cell types and connections. This research reveals how Foxp1 gene disruptions may lead to neurodevelopmental disorders.
Area of Science:
- Neuroscience
- Developmental Biology
- Genetics
Background:
- The striatum integrates sensory, cognitive, and motor information for behavioral output.
- Transcriptional regulation of early striatal development at single-cell resolution is largely unknown.
Purpose of the Study:
- To investigate the role of the transcription factor Foxp1 in the cellular and molecular development of the early postnatal striatum.
- To identify Foxp1-regulated genes and their impact on striatal circuitry and function.
Main Methods:
- Single-cell RNA sequencing (RNA-seq) to analyze cellular diversity.
- Investigated cell-type-specific effects of Foxp1 disruption.
- Examined non-cell-autonomous effects and molecular compensation.
Main Results:
- Foxp1 regulates striatal cell composition, neurochemical architecture, and connectivity in a cell-type-dependent manner.
- Identified Foxp1 target genes and linked molecular changes to functional and behavioral deficits.
- Revealed compensatory mechanisms in neighboring cell populations upon Foxp1 disruption.
Conclusions:
- Foxp1 plays a crucial cell-type-specific role in striatal development and circuitry.
- Molecular and cellular changes driven by Foxp1 are relevant to FOXP1 loss-of-function mutation phenotypes.
- This study provides insights into the transcriptional mechanisms underlying striatal development and neurodevelopmental disorders.
