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Chd5 Regulates the Transcription Factor Six3 to Promote Neuronal Differentiation
Padmina Shrestha1,2, Anbalagan Jaganathan1, Dhananjay Huilgol1,3
1Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.
Stem Cells (Dayton, Ohio)
|January 13, 2023
Summary
Chromodomain helicase DNA-binding protein 5 (Chd5) drives neurogenesis by regulating gene expression in neural stem cells. It initiates neuronal differentiation by repressing maturation factors during early development.
Area of Science:
- Neuroscience
- Developmental Biology
- Genetics
Background:
- Chromodomain helicase DNA-binding protein 5 (Chd5) is an ATP-dependent chromatin remodeler.
- Chd5 is known to promote neuronal differentiation.
- The precise mechanism of Chd5 action in neurogenesis remains unclear.
Purpose of the Study:
- To elucidate the mechanism by which Chd5 regulates neurogenesis.
- To investigate the role of Chd5 in directing transcriptional changes during neuronal differentiation.
Main Methods:
- Transcriptional profiling of cells from Chd5-deficient mice.
- Analysis of early and late stages of neuronal differentiation.
Main Results:
- Chd5 directs stepwise transcriptional changes during neurogenesis.
- Early in neurogenesis, Chd5 upregulates Six3 and represses Wnt5a.
- Chd5's repression of neuronal maturation factors is crucial for lineage specification and maturation.
Conclusions:
- Chd5 facilitates early transcriptional changes in neural stem cells.
- Chd5 initiates transcriptional programs essential for neuronal fate specification.
- Chd5 plays a critical role in both initiating and regulating neuronal differentiation.
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