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Liver X receptors in cardiovascular and metabolic disease

R Geyeregger1, M Zeyda, T M Stulnig

  • 1Clin. Div. of Endocrinology and Metabolism, Dept. of Internal Med. III, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.

Cellular and Molecular Life Sciences : CMLS
|January 4, 2006
PubMed

Insights

Liver X receptors (LXRs) are key metabolic sensors. Activating LXRs shows promise for treating cardiovascular diseases and diabetes, but requires careful targeting to avoid side effects like increased triglycerides.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pharmacology

Background:

  • Liver X receptors (LXRs) alpha and beta are nuclear receptors that regulate cholesterol and lipid metabolism.
  • Emerging research highlights the critical role of LXRs in cardiovascular diseases and metabolic disorders.
  • LXR modulation impacts both metabolic and inflammatory gene expression.

Purpose of the Study:

  • To review the physiological and pathophysiological roles of LXRs.
  • To explore LXRs as therapeutic targets for cardiovascular and metabolic diseases.
  • To discuss the potential of selective LXR modulators over unselective agonists.

Main Methods:

  • Literature review of studies on LXR function and therapeutic applications.
  • Analysis of LXR agonist effects on atherosclerosis, gluconeogenesis, and triglyceride levels in preclinical models.
  • Evaluation of pharmacological strategies for LXR targeting.

Main Results:

  • LXR activation can prevent atherosclerosis development by modulating metabolic and inflammatory genes.
  • LXR activation inhibits hepatic gluconeogenesis, lowering serum glucose levels, suggesting diabetes treatment potential.
  • First-generation LXR agonists can increase triglyceride levels, necessitating subtype-specific approaches.

Conclusions:

  • LXRs are crucial regulators of lipid and glucose metabolism with significant therapeutic implications.
  • Targeting LXRs offers a promising strategy for treating cardiovascular and metabolic diseases.
  • Development of selective LXR modulators is essential to maximize therapeutic benefits and minimize adverse effects.

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