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Nuclear receptors versus inflammation: mechanisms of transrepression

Gabriel Pascual1, Christopher K Glass

  • 1Department of Cellular and Molecular Medicine, Department of Medicine, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, USA.

Trends in Endocrinology and Metabolism: TEM
|September 1, 2006
PubMed

Insights

Nuclear receptors can inhibit inflammatory responses by interfering with key transcription factors. This process, known as transrepression, offers a potential therapeutic strategy for chronic inflammatory diseases.

Area of Science:

  • Molecular Biology
  • Immunology
  • Cellular Biology

Background:

  • Inflammation is a critical host defense mechanism against injury.
  • Prolonged or unresolved inflammation contributes to various disease pathologies.
  • Nuclear receptors are known regulators of gene expression and cellular processes.

Purpose of the Study:

  • To investigate the role of nuclear receptors in modulating inflammatory gene expression.
  • To elucidate the mechanism by which nuclear receptors attenuate inflammatory responses.
  • To explore the potential of nuclear receptors as therapeutic targets for inflammatory conditions.

Main Methods:

  • Studied the interaction between nuclear receptors and signal-dependent transcription factors.
  • Investigated the mechanism of transrepression in the context of inflammatory gene activation.
  • Focused on nuclear factor kappaB (NF-κB) and activator protein 1 (AP-1) pathways.

Main Results:

  • Nuclear receptors inhibit the transcriptional activity of NF-κB and AP-1.
  • This inhibition occurs through a mechanism termed transrepression.
  • Transrepression involves protein-protein interactions, not direct DNA binding.

Conclusions:

  • Nuclear receptors play a significant role in suppressing inflammatory gene transcription.
  • Transrepression is a key mechanism by which nuclear receptors control inflammation.
  • Targeting nuclear receptor-mediated transrepression may offer novel therapeutic avenues for inflammatory diseases.

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