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Published on: November 27, 2016

Structure-activity relationship of bile alcohols as human farnesoid X receptor agonist

Yusuke Iguchi1, Kenji Kihira, Tomoko Nishimaki-Mogami

  • 1Laboratory of Organic and Bio-molecular Chemistry, Faculty of Pharmaceutical Science, Hiroshima International University, 5-1-1, Hirokoshingai, Kure, Hiroshima 737-0112, Japan. y-iguchi@ps.hirokoku-u.ac.jp

Steroids
|November 17, 2009
PubMed

Insights

Researchers explored how bile alcohols and acids activate the farnesoid X receptor (FXR). Sterol side chain modifications, like hydroxyl group placement and length, significantly impact FXR agonist activity, offering insights for drug development.

Area of Science:

  • Molecular biology
  • Biochemistry
  • Pharmacology

Background:

  • The farnesoid X receptor (FXR) is a nuclear receptor activated by bile acids.
  • FXR regulates bile acid homeostasis, lipid, and glucose metabolism.
  • FXR signaling pathways are key targets for metabolic and liver diseases.

Purpose of the Study:

  • To investigate the structure-activity relationships of naturally occurring sterols as FXR agonists.
  • To uncover novel modulators of FXR and understand FXR activation mechanisms.

Main Methods:

  • Investigated FXR agonist activity of various naturally occurring sterols structurally related to bile acids.
  • Analyzed the impact of modifications in the steroid side chain (hydroxyl group position/number, length) on FXR activation.

Main Results:

  • Bile alcohol FXR agonist activity is dependent on the position and number of hydroxyl groups on the steroid side chain.
  • Shortening the steroid side chain of bile acids and bile alcohols reduced their FXR agonist activity.
  • Established structure-activity relationships for bile acids and bile alcohols as FXR agonists.

Conclusions:

  • Sterol structure, particularly side chain modifications, critically influences FXR activation.
  • Provides foundational insights into FXR agonist design for therapeutic applications.
  • Highlights the importance of side chain integrity for potent FXR modulation.

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