Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system

Karl D. Whitney, Michael A. Watson, Jon L. Collins, William G. Benson, Tammy M. Stone, Mary Jo Numerick, Timothy K. Tippin, Joan G. Wilson, Deborah A. Winegar, Steven A. Kliewer

Research output: Contribution to journalArticle

159 Citations (Scopus)

Abstract

The nuclear oxysterol receptors liver X receptor-α [LXRα (NR1H3)] and LXRβ (NR1H2) coordinately regulate genes involved in cholesterol homeostasis. Although both LXR subtypes are expressed in the brain, their roles in this tissue remain largely unexplored. In this report, we show that LXR agonists have marked effects on gene expression in murine brain tissue both in vitro and in vivo. In primary astrocyte cultures, LXR agonists regulated several established LXR target genes, including ATP binding cassette transporter A1, and enhanced cholesterol efflux. In contrast, little or no effect on gene expression or cholesterol efflux was detected in primary neuronal cultures. Treatment of mice with a selective LXR agonist resulted in the induction of several LXR target genes related to cholesterol homeostasis in the cerebellum and hippocampus. These data provide the first evidence that the LXRs regulate cholesterol homeostasis in the central nervous system. Because dysregulation of cholesterol balance is implicated in central nervous system diseases such as Alzheimer's and Niemann-Pick disease, pharmacological manipulation of the LXRs may prove beneficial in the treatment of these disorders.

Original languageEnglish (US)
Pages (from-to)1378-1385
Number of pages8
JournalMolecular Endocrinology
Volume16
Issue number6
DOIs
StatePublished - Jan 1 2002

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Homeostasis
Central Nervous System
Cholesterol
Niemann-Pick Diseases
Genes
Gene Expression
ATP-Binding Cassette Transporters
Central Nervous System Diseases
Brain
Astrocytes
Cerebellum
Liver X Receptors
Hippocampus
Pharmacology

ASJC Scopus subject areas

  • Molecular Biology
  • Endocrinology

Cite this

Whitney, K. D., Watson, M. A., Collins, J. L., Benson, W. G., Stone, T. M., Numerick, M. J., ... Kliewer, S. A. (2002). Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system. Molecular Endocrinology, 16(6), 1378-1385. https://doi.org/10.1210/mend.16.6.0835

Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system. / Whitney, Karl D.; Watson, Michael A.; Collins, Jon L.; Benson, William G.; Stone, Tammy M.; Numerick, Mary Jo; Tippin, Timothy K.; Wilson, Joan G.; Winegar, Deborah A.; Kliewer, Steven A.

In: Molecular Endocrinology, Vol. 16, No. 6, 01.01.2002, p. 1378-1385.

Research output: Contribution to journalArticle

Whitney, KD, Watson, MA, Collins, JL, Benson, WG, Stone, TM, Numerick, MJ, Tippin, TK, Wilson, JG, Winegar, DA & Kliewer, SA 2002, 'Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system', Molecular Endocrinology, vol. 16, no. 6, pp. 1378-1385. https://doi.org/10.1210/mend.16.6.0835
Whitney KD, Watson MA, Collins JL, Benson WG, Stone TM, Numerick MJ et al. Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system. Molecular Endocrinology. 2002 Jan 1;16(6):1378-1385. https://doi.org/10.1210/mend.16.6.0835
Whitney, Karl D. ; Watson, Michael A. ; Collins, Jon L. ; Benson, William G. ; Stone, Tammy M. ; Numerick, Mary Jo ; Tippin, Timothy K. ; Wilson, Joan G. ; Winegar, Deborah A. ; Kliewer, Steven A. / Regulation of cholesterol homeostasis by the liver X receptors in the central nervous system. In: Molecular Endocrinology. 2002 ; Vol. 16, No. 6. pp. 1378-1385.
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