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Updated: Mar 27, 2026
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Oct4GiP Reporter Assay to Study Genes that Regulate Mouse Embryonic Stem Cell Maintenance and Self-renewal
Published on: May 30, 2012
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FOXD3 Regulates Pluripotent Stem Cell Potential by Simultaneously Initiating and Repressing Enhancer Activity.
Raga Krishnakumar1, Amy F Chen1, Marisol G Pantovich2
1The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Center for Reproductive Sciences, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Urology, University of California, San Francisco, San Francisco, CA 94143, USA.
Cell Stem Cell
|January 11, 2016
Summary
Forkhead transcription factor FOXD3 regulates developmental potential in pluripotent cells. It primes enhancers by remodeling chromatin and repressing maximal activation, preparing genes for future expression during cell differentiation.
Area of Science:
- Developmental Biology
- Epigenetics
- Gene Regulation
Background:
- Pluripotent stem cells must maintain developmental potential and respond to cues.
- Enhancers regulate gene expression temporally and contextually during development.
- Understanding regulation of enhancers is crucial for early development.
Purpose of the Study:
- To investigate enhancer activity regulation during embryonic stem cell to epiblast cell differentiation.
- To identify key regulators of pluripotent cell developmental potential.
Main Methods:
- Analysis of enhancer activity during cell differentiation.
- Chromatin immunoprecipitation to identify transcription factor binding sites.
- Biochemical assays to assess chromatin remodeling and histone modification.
Main Results:
- FOXD3 (forkhead transcription factor) identified as a major regulator.
- FOXD3 binds distinct sites in embryonic stem cells and epiblast cells.
- FOXD3 employs a dual mechanism: recruiting BRG1 for nucleosome removal and histone deacetylases 1/2 for repression.
- FOXD3 establishes and represses enhancer activity simultaneously.
Conclusions:
- FOXD3 modulates pluripotent cell developmental potential through dynamic enhancer regulation.
- FOXD3's dual-function mechanism prepares genes for precise expression during differentiation.
- FOXD3 switching of target sites is critical for developmental transitions.
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