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Liver X receptors as therapeutic targets in metabolism and atherosclerosis

Takashi Nomiyama1, Dennis Bruemmer

  • 1Division of Endocrinology and Molecular Medicine, Department of Internal Medicine, University of Kentucky College of Medicine, Wethington Health Sciences Building, Room 575, 900 South Limestone Street, Lexington, KY 40536, USA.

Current Atherosclerosis Reports
|March 28, 2008
PubMed

Insights

Liver X receptors (LXRs) regulate lipid and carbohydrate metabolism. LXR activation promotes cholesterol removal and improves insulin sensitivity, offering potential for cardiovascular disease treatment.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pharmacology

Background:

  • Liver X receptors (LXRs) are nuclear receptors regulating lipid and carbohydrate homeostasis.
  • LXRs are activated by cholesterol derivatives, promoting cholesterol efflux and bile excretion.
  • Glucose acts as an LXR ligand, suppressing hepatic gluconeogenesis and enhancing insulin sensitivity.

Purpose of the Study:

  • To review the critical roles of LXRs in metabolic regulation.
  • To summarize LXR involvement in vascular biology.
  • To discuss LXRs as potential therapeutic targets for cardiovascular diseases.

Main Methods:

  • Literature review of studies on Liver X receptors.
  • Analysis of LXR function in lipid metabolism.
  • Examination of LXR effects on carbohydrate metabolism and vascular cells.

Main Results:

  • LXR activation stimulates reverse cholesterol transport and bile excretion.
  • LXR agonism improves glucose metabolism and insulin sensitivity.
  • LXR ligands inhibit vascular cell inflammation and proliferation, potentially preventing atherosclerosis.

Conclusions:

  • LXRs are key regulators of lipid and glucose homeostasis.
  • LXR signaling pathways offer promising therapeutic strategies for metabolic and cardiovascular diseases.
  • Targeting LXRs may provide novel treatments for atherosclerosis and related complications.

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