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Connections and regulation of the human estrogen receptor

Donald P McDonnell1, John D Norris

  • 1Department of Pharmacology and Cancer Biology, Duke University Medical Center, Box 3813, Durham, NC 27710, USA. donald.mcdonnell@duke.edu

Science (New York, N.Y.)
|June 1, 2002
PubMed

Insights

Estrogen

Area of Science:

  • Endocrinology and Molecular Biology

Background:

  • Estrogen influences diverse cellular functions across multiple tissues.
  • Cellular responses to estrogen vary significantly, necessitating a deeper understanding of its molecular mechanisms.

Purpose of the Study:

  • To elucidate the molecular basis for differential cellular responses to estrogen.
  • To highlight key factors governing the specificity of estrogen signaling.

Main Methods:

  • Review of recent molecular studies on estrogen receptor (ER) action.
  • Analysis of ER subtypes, cofactor interactions, and cellular expression patterns.

Main Results:

  • Identified two distinct estrogen receptors (ERs) with unique in vivo expression profiles.
  • Demonstrated that ER transcriptional activity depends on interactions with specific transcription cofactors (coactivators/corepressors).
  • Highlighted that cofactor expression and function are cell-specific and not uniform.

Conclusions:

  • Estrogen receptor presence is necessary but not sufficient for cellular response to estrogen.
  • The specific cellular context, including available cofactors and interacting pathways, dictates the nature and magnitude of the estrogenic response.

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