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Related Experiment Videos

Xenobiotic receptor knockout mice

F J Gonzalez1, P Fernandez-Salguero, S S Lee

  • 1National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. fjgonz@helix.nih.gov

Toxicology Letters
|December 1, 1995
PubMed
Summary
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The study used gene knockout mice to investigate the roles of the Ah receptor (AHR) and peroxisome proliferator-activated receptors (PPARs) in animal responses to foreign chemicals like dioxins and peroxisome proliferators.

Area of Science:

  • Toxicology and Molecular Biology
  • Receptor-mediated gene expression
  • Xenobiotic interactions

Background:

  • Foreign chemicals activate gene expression through specific receptors.
  • The Ah receptor (AHR) binds dioxins, and peroxisome proliferator-activated receptors (PPARs) bind peroxisome proliferators.
  • These receptors may play roles in development and homeostasis beyond chemical interactions.

Purpose of the Study:

  • To investigate the physiological functions of AHR and PPAR alpha.
  • To determine the involvement of these receptors in the adverse effects of dioxins and peroxisome proliferators.

Main Methods:

  • Development of gene knockout mice lacking functional AHR and PPAR alpha.
  • Analysis of animal responses to specific chemical exposures in wild-type versus knockout models.

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Main Results:

  • Gene knockout mice models were successfully created.
  • These models allow for the study of AHR and PPAR alpha functions.

Conclusions:

  • Gene knockout mouse models are essential tools for understanding receptor-mediated responses to xenobiotics.
  • Further research using these models will elucidate the roles of AHR and PPARs in toxicology and physiology.