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Updated: May 22, 2026
07:23
Describing a Transcription Factor Dependent Regulation of the MicroRNA Transcriptome
Published on: June 15, 2016
The Stat3/GR interaction code: predictive value of direct/indirect DNA recruitment for transcription outcome
David Langlais1, Catherine Couture, Aurélio Balsalobre
1Laboratoire de Génétique Moléculaire, Institut de Recherches Cliniques de Montréal (IRCM), Montréal, QC H2W 1R7, Canada.
Molecular Cell
|May 29, 2012
Summary
Glucocorticoid receptor (GR) and Stat3 interactions reveal complex gene regulation. GR tethering to Stat3 represses genes, while Stat3 tethering to GR activates them, impacting health and disease.
Area of Science:
- Molecular Biology
- Genomics
- Gene Regulation
Background:
- Transcription factors bind DNA to regulate gene expression.
- Glucocorticoid receptor (GR) can act as a repressor via protein tethering.
- Stat3 is a key signaling protein involved in various cellular processes.
Purpose of the Study:
- To investigate genome-wide interactions between GR and Stat3.
- To understand the transcriptional outcomes of GR-Stat3 tethering.
- To elucidate the mechanisms of signal integration by GR and Stat3.
Main Methods:
- Genome-wide analysis of transcription factor interactions.
- Assessment of transcriptional changes upon GR and Stat3 corecruitment.
- ChIP-sequencing and gene expression profiling.
Main Results:
- Nonreciprocal tethering interactions between GR and Stat3 were identified.
- GR tethering to Stat3 led to transcriptional repression.
- Stat3 tethering to GR resulted in synergistic gene activation.
- Other corecruitment schemes also promoted transcriptional synergism.
Conclusions:
- GR and Stat3 exhibit extensive and complex transcriptional interactions.
- Protein tethering plays a significant role in GR-mediated repression.
- These findings provide insights into signal integration by GR and Stat3 in biological processes and disease.
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