The roles of liver X receptor α in inflammation and inflammation-associated diseases

J Cell Physiol. 2021 Jul;236(7):4807-4828. doi: 10.1002/jcp.30204. Epub 2020 Dec 10.

Abstract

Liver X receptor α (LXRα; also known as NR1H3), an isoform of LXRs, is a member of the nuclear receptor family of transcription factors and plays essential roles in the transcriptional control of cholesterol homeostasis. Previous in-depth phenotypic analyses of mouse models with deficient LXRα have also demonstrated various physiological functions of this receptor within inflammatory responses. LXRα activation exerts a combination of metabolic and anti-inflammatory actions resulting in the modulation and the amelioration of inflammatory disorders. The tight "repercussions" between LXRα and inflammation, as well as cholesterol homeostasis, have suggested that LXRα could be pharmacologically targeted in pathologies such as atherosclerosis, acute lung injury, and Alzheimer's disease. This review gives an overview of the recent advances in understanding the roles of LXRα in inflammation and inflammation-associated diseases, which will help in the design of future experimental researches on the potential of LXRα and advance the investigation of LXRα as pharmacological inflammatory targets.

Keywords: LXRs agonists; LXRα; cholesterol homeostasis; inflammation.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Acute Lung Injury / pathology
  • Alzheimer Disease / pathology
  • Animals
  • Atherosclerosis / pathology
  • Cholesterol / metabolism*
  • Humans
  • Inflammation / pathology*
  • Lipid Metabolism / physiology*
  • Liver X Receptors / genetics
  • Liver X Receptors / metabolism*
  • Mice
  • Protein Isoforms / genetics
  • Protein Isoforms / metabolism

Substances

  • Liver X Receptors
  • NR1H2 protein, human
  • NR1H3 protein, human
  • Nr1h2 protein, mouse
  • Nr1h3 protein, mouse
  • Protein Isoforms
  • Cholesterol