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Steroid hormone receptors: an update.

M Beato1, J Klug

  • 1Institut für Molekularbiologie und Tumorforschung, IMT, Philipps-Universität, Marburg, Germany. beato@imt.uni-marburg.de

Human Reproduction Update
|June 30, 2000
PubMed
Summary

Steroid hormones (SHs) regulate gene expression by binding to steroid hormone receptors (SHRs). These receptors modulate cellular responses through various mechanisms, impacting numerous physiological processes.

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Area of Science:

  • Endocrinology
  • Molecular Biology
  • Genetics

Background:

  • Steroid hormones (SHs) are cholesterol-derived lipophilic molecules synthesized in endocrine glands.
  • SHs transport via blood, bound to carrier proteins, and enter target cells via diffusion.
  • Steroid hormone receptors (SHRs) are intracellular transcription factors mediating SH action.

Purpose of the Study:

  • To elucidate the mechanisms by which steroid hormones (SHs) and their receptors (SHRs) regulate gene expression.
  • To describe the diverse pathways through which SHRs modulate cellular functions.
  • To highlight the context-dependent nature of SH actions.

Main Methods:

  • Review of literature on steroid hormone synthesis, transport, and receptor interactions.
  • Analysis of SHR activation, DNA binding, and interaction with other transcription factors.
  • Examination of SHR integration into intracellular signaling networks.

Main Results:

  • SHRs, upon ligand binding, undergo conformational changes and interact with chromatin at hormone response elements (HREs).
  • SHRs regulate gene expression via direct DNA binding, protein-protein interactions with other transcription factors, and cross-talk with signal transduction pathways.
  • SHRs influence gene expression involved in stress response, inflammation, and other physiological processes.

Conclusions:

  • Steroid hormone receptors are key regulators of gene expression, employing multiple mechanisms to modulate cellular responses.
  • The physiological effects of steroid hormones are highly specific and depend on the cellular and genetic context.
  • Understanding SHR function is crucial for comprehending diverse biological processes and potential therapeutic interventions.

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