Cited by 388Fatty Acid Research and HealthAdipose Tissue and MetabolismLipid metabolism and biosynthesis

Polyunsaturated fatty acids of marine origin upregulate mitochondrial biogenesis and induce β-oxidation in white fat

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Flachs, P., Horakova, O., Brauner, P., Rossmeisl, M., Pecina, P., Franssen-van Hal, N., Ruzickova, J., Sponarova, J. +5 more·2005·Diabetologia

Abstract

Aims/hypothesis Intake of n-3 polyunsaturated fatty acids reduces adipose tissue mass, preferentially in the abdomen. The more pronounced effect of marine-derived eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids on adiposity, compared with their precursor alpha-linolenic acid, may be mediated by changes in gene expression and metabolism in white fat.Methods The effects of EPA/DHA concentrate (6% EPA, 51% DHA) admixed to form two types of high-fat diet were studied in C57BL/6J mice. Oligonucleotide microarrays, cDNA PCR subtraction and quantitative real-time RT-PCR were used to characterise gene expression. Mitochondrial proteins were quantified using immunoblots. Fatty acid oxidation and synthesis were measured in adipose tissue fragments.Results Expression screens revealed upregulation of genes for mitochondrial proteins, predominantly in epididymal fat when EPA/DHA concentrate was admixed to a semisynthetic high-fat diet rich in alpha-linolenic acid. This was associated with a three-fold stimulation of the expression of genes encoding regulatory factors for mitochondrial biogenesis and oxidative metabolism (peroxisome proliferator-activated receptor gamma coactivator 1 alpha [Ppargc1a, also known as Pgc1alpha] and nuclear respiratory factor-1 [Nrf1] respectively). Expression of genes for carnitine palmitoyltransferase 1A and fatty acid oxidation was increased in epididymal but not subcutaneous fat. In the former depot, lipogenesis was depressed. Similar changes in adipose gene expression were detected after replacement of as little as 15% of lipids in the composite high-fat diet with EPA/DHA concentrate, while the development of obesity was reduced. The expression of Ppargc1a and Nrf1 was also stimulated by n-3 polyunsaturated fatty acids in 3T3-L1 cells.Conclusions/interpretation The anti-adipogenic effect of EPA/DHA may involve a metabolic switch in adipocytes that includes enhancement of beta-oxidation and upregulation of mitochondrial biogenesis.

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Authors
Flachs, P., Horakova, O., Brauner, P., Rossmeisl, M., Pecina, P., Franssen-van Hal, N., Ruzickova, J., Sponarova, J., Drahota, Z., Vlcek, C., Keijer, J., Houstek, J., & Kopecky, J.
Affiliations
  • Czech Academy of Sciences (CZ)
  • Wageningen University & Research (NL)
Venue
Diabetologia
Published
2005-10-05
Volume
48
Issue
11
Pages
2365-2375
ISSN
  • 0012-186X (ISSN-L)
  • 1432-0428
OpenAlex
W2126272143
Cited by
388
References
51
Citations by year
2026: 7 · 2025: 8 · 2024: 12 · 2023: 11 · 2022: 10 · 2021: 13 · 2020: 25 · 2019: 23 · 2018: 22 · 2017: 12 · 2016: 26 · 2015: 30 · 2014: 28 · 2013: 34 · 2012: 19
FWCI
14.01
Type
journal article
Language
en
Open access
Locations
  • Diabetologia (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • Ministerstvo Školství, Mládeže a Tělovýchovy (AVOZ50110509, 1 M6837805002)
  • Grantová Agentura České Republiky (1M6837805002, 50110509, AVOZ 50110509)
  • Advanced Scientific Computing Research
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
omega-3 fatty acids, eicosapentaenoic acid, docosahexaenoic acid, mitochondrial biogenesis, fatty acid beta-oxidation, white adipose tissue, epididymal adipose tissue, PGC-1α, NRF1, CPT1A, lipogenesis, obesity, high-fat diet, adipocyte gene expression
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Adipose Tissue, Animals, Carnitine O-Palmitoyltransferase, Cells, Cultured, Docosahexaenoic Acids, Epididymis, Fatty Acids, Unsaturated, Fish Oils, Gene Expression Regulation, Male, Mice, Inbred C57BL, Mitochondria, Obesity, Oxidation-Reduction, Transcription Factors, Eicosapentaenoic Acid, Trans-Activators, Adipocytes, alpha-Linolenic Acid, Mitochondrial Proteins, Subcutaneous Fat, Lipogenesis, NF-E2-Related Factor 1, Mice

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