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Related Experiment Videos

Structure-activity relationships of estrogens.

V C Jordan, S Mittal, B Gosden

    Environmental Health Perspectives
    |September 1, 1985
    PubMed
    Summary
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    This review updates the estrogen receptor mechanism, suggesting estrogens enter the nucleus to act. It details structure-activity relationships for developing potent estrogenic compounds and receptor binding models.

    Area of Science:

    • Endocrinology
    • Molecular Pharmacology

    Background:

    • Estrogen action research has grown exponentially over 50 years.
    • The estrogen receptor (ER) mechanism is updated with new subcellular localization data.

    Purpose of the Study:

    • To update the model of early estrogen action events.
    • To review the development of potent estrogenic compounds via structure-activity relationships.
    • To present estrogen receptor binding models.

    Main Methods:

    • Incorporating recent data on estrogen receptor subcellular localization.
    • Analyzing structure-activity relationships (SAR) using in vivo (e.g., uterine weight tests) and in vitro (cell cultures) assays.
    • Developing estrogen receptor binding models to predict ligand affinity and activity.

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    Main Results:

    • Estrogens appear to diffuse into the nuclear compartment to initiate action via the ER complex.
    • In vitro assays provide essential structural insights, while in vivo studies confirm metabolic activation.
    • Estrogen receptor binding models predict ligand affinity and agonist/antagonist properties.

    Conclusions:

    • The updated model emphasizes the nuclear localization of the estrogen receptor for initiating estrogen action.
    • Structure-activity relationship studies are crucial for designing effective estrogenic compounds.
    • Estrogenic pesticides and phytoestrogens generally align with established estrogen receptor binding models.