Cited by 51Cholesterol and Lipid MetabolismLipid metabolism and biosynthesisCancer, Lipids, and Metabolism

Regulation of fatty acid and cholesterol synthesis: co-operation or competition?

Gibbons, Geoffrey F·2003·Progress in Lipid Research

Abstract

Fatty acids and sterols originally evolved symbiotically as structural components of cell membranes. In some respects, control of their biosynthetic pathways reflects their mutual interdependence in defining changes in the physicochemical properties of the membranes in response to the changing internal and external cellular environments. In some tissues of higher animals, however, cholesterol and fatty acids have multifunctional roles. In particular, the liver synthesizes these lipids for export as multimolecular complexes in the form of micellar bile components and lipoproteins. Intrahepatic fatty acid and cholesterol synthesis is dependent upon the balance between hepatic output of these complexes and dietary input of fat and cholesterol. Thus physiological control of these synthetic processes is often co-ordinated at both the transcriptional and post-translational levels. On the other hand, changes in flux through major metabolic pathways, particularly during physiological transitions and as a result of genetic manipulation, affects substrate availability for these pathways. Under these circumstances, regulation reflects a compensatory response to ensure that flux through the lipid pathways remains unchanged. These regulatory changes can best be interpreted in terms of a Metabolic Control Analysis approach. In summary, flux through the fatty acid and cholesterol pathways reflects (a) cellular demand for these lipids, (b) a variable availability of substrates, (c) a combina…

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Crossref · 10.1016/s0163-7827(03)00034-1

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Authors
Gibbons, G. F.
Affiliations
Churchill Hospital (GB)
Corresponding author
Gibbons, Geoffrey F
Venue
Progress in Lipid Research
Publisher
Elsevier BV
Published
2003-11
Volume
42
Issue
6
Pages
479-497
ISSN
0163-7827 (ISSN-L)
OpenAlex
W2078610431
Cited by
51
References
102
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 1 · 2022: 4 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 1 · 2015: 2 · 2013: 2 · 2012: 1
FWCI
0.79
Type
journal article
Language
en
Open access
closed
Locations
  • Progress in Lipid Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
fatty acid synthesis, cholesterol biosynthesis, lipid metabolism regulation, metabolic control analysis, bile acids, lipoproteins, substrate availability, membrane lipids, transcriptional regulation, post-translational regulation
MeSH terms
Arteriosclerosis, Cell Membrane, Cholesterol, Cholesterol, Dietary, DNA-Binding Proteins, Fatty Acids, Homeostasis, Humans, Hydroxymethylglutaryl CoA Reductases, Liver, Transcription Factors, CCAAT-Enhancer-Binding Proteins, Lipid Metabolism, Sterol Regulatory Element Binding Protein 1

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