Requirement of histone deacetylase activity for the expression of critical photoreceptor genes
2007
Role of Histone Deacetylase Activity in Retinal Development
publication
Evidence: high
Author Information
Author(s): Chen Bo, Cepko Constance L
Primary Institution: Harvard Medical School
Hypothesis
Histone deacetylase activity is required for the expression of critical photoreceptor genes.
Conclusion
HDAC activity is essential for the expression of key transcription factors necessary for rod photoreceptor development.
Supporting Evidence
- HDAC inhibition led to reduced RNA levels for genes regulating retinal development.
- Promoter activity of Nrl and Crx was compromised by HDAC inhibition.
- HDAC inhibition resulted in increased cell death and reduced proliferation in retinal explants.
- Downregulation of pro-rod transcription factors occurred within 3 hours of HDAC inhibition.
Takeaway
This study shows that a certain enzyme activity is needed for the development of light-sensing cells in the eye, and without it, these cells can't form properly.
Methodology
The study used HDAC inhibitors on newborn murine retinae in explant cultures to assess gene expression changes.
Participant Demographics
Newborn murine retinae
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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