Cited by 731Cholesterol and Lipid MetabolismLipid Membrane Structure and BehaviorCancer, Lipids, and Metabolism

Liver X receptors in lipid signalling and membrane homeostasis

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Wang, Bo, Tontonoz, Peter·2018·Nature Reviews Endocrinology

Abstract

Liver X receptors α and β (LXRα and LXRβ) are nuclear receptors with pivotal roles in the transcriptional control of lipid metabolism. Transcriptional activity of LXRs is induced in response to elevated cellular levels of cholesterol. LXRs bind to and regulate the expression of genes that encode proteins involved in cholesterol absorption, transport, efflux, excretion and conversion to bile acids. The coordinated, tissue-specific actions of the LXR pathway maintain systemic cholesterol homeostasis and regulate immune and inflammatory responses. LXRs also regulate fatty acid metabolism by controlling the lipogenic transcription factor sterol regulatory element-binding protein 1c and regulate genes that encode proteins involved in fatty acid elongation and desaturation. LXRs exert important effects on the metabolism of phospholipids, which, along with cholesterol, are major constituents of cellular membranes. LXR activation preferentially drives the incorporation of polyunsaturated fatty acids into phospholipids by inducing transcription of the remodelling enzyme lysophosphatidylcholine acyltransferase 3. The ability of the LXR pathway to couple cellular sterol levels with the saturation of fatty acids in membrane phospholipids has implications for several physiological processes, including lipoprotein production, dietary lipid absorption and intestinal stem cell proliferation. Understanding how LXRs regulate membrane composition and function might provide new therapeutic insight into diseases associated with dysregulated lipid metabolism, including atherosclerosis, diabetes mellitus and cancer.

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  • Some secondary bile acids impact host physiology through interaction with host nuclear receptors including FXR, LXR, PXR, and specific G-protein coupled receptors like TGR5.

    “Following systemic adsorption, some secondary BAs in turn impact host physiology though interaction with a variety of host nuclear receptors including FXR, liver X receptor (LXR), pregnane X receptor (PXR), and specific G-protein coupled receptors like TGR5 (Figure 1)40–44.”

    From Gut microbiota and cardiovascular disease. (2020) · cites this paper as [41]

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  1. [141]US National Library of Medicine. ClinicalTrials.gov https://clinicaltrials.gov/ct2/show/NCT00836602 (2011). 28792816
  2. [147]US National Library of Medicine. ClinicalTrials.gov https://clinicaltrials.gov/ct2/show/NCT00366522 (2009). 28792816
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Authors
Wang, B., & Tontonoz, P.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Tontonoz, Peter
Venue
Nature Reviews Endocrinology
Published
2018-06-14
Volume
14
Issue
8
Pages
452-463
ISSN
  • 1759-5029 (ISSN-L)
  • 1759-5037
OpenAlex
W2808548053
Cited by
722
References
150
Citations by year
2026: 89 · 2025: 111 · 2024: 110 · 2023: 117 · 2022: 81 · 2021: 94 · 2020: 64 · 2019: 48 · 2018: 8
FWCI
11.87
Type
journal article
Language
en
Open access
Locations
  • Nature Reviews Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (K01DK114373)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
liver X receptor, liver X receptor alpha, LXRβ, nuclear receptors, cholesterol homeostasis, lipid metabolism, SREBP-1c, fatty acid metabolism, membrane homeostasis, polyunsaturated fatty acids, bile acid synthesis, lipoprotein production, intestinal stem cell proliferation, atherosclerosis, diabetes mellitus, cancer
MeSH terms
Liver X Receptors, Animals, Cholesterol, Gene Expression Regulation, Homeostasis, Humans, Signal Transduction, Needs Assessment, Lipid Metabolism, Translational Research, Biomedical

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