Cited by 76Adipokines, Inflammation, and Metabolic DiseasesFatty Acid Research and HealthImmune cells in cancer

Dietary Oleic Acid Increases M2 Macrophages in the Mesenteric Adipose Tissue

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Camell, Christina, Smith, C. Wayne·2013·PLoS ONE

Abstract

Several studies have implicated fatty-acids as inflammatory regulators, suggesting that there may be a direct role for common dietary fatty-acids in regulating innate immune cells. In humans, a single high-fat meal increases systemic cytokines and leukocytes. In mice, short term high-fat feeding increases adipose tissue (AT) leukocytes and alters the inflammatory profile of AT macrophages. We have seen that short term high fat feeding to C57BL/6J male mice increases palmitic and oleic acid within AT depots, but oleic acid increase is highest in the mesenteric AT (MAT). In vitro, oleic acid increases M2 macrophage markers (CD206, MGL1, and ARG1) in a murine macrophage cell line, while addition of palmitic acid is able to inhibit that increase. Three day supplementation of a chow diet, with oleic acid, induced an increase in M2 macrophage markers in the MAT, but not in the epididymal AT. We tested whether increases in M2 macrophages occur during short term ad lib feeding of a high fat diet, containing oleic acid. Experiments revealed two distinct populations of macrophages were altered by a three day high milk-fat diet. One population, phenotypically intermediate for F4/80, showed diet-induced increases in CD206, an anti-inflammatory marker characteristic of M2 macrophages intrinsic to the AT. Evidence for a second population, phenotypically F4/80(HI)CD11b(HI) macrophages, showed increased association with the MAT following short term feeding that is dependent on the adhesion molecule, ICAM-1. Collectively, we have shown that short term feeding of a high-fat diet changes two population of macrophages, and that dietary oleic acid is responsible for increases in M2 macrophage polarization.

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Authors
Camell, C., & Smith, C. W.
Affiliations
Baylor College of Medicine (US)
Corresponding author
Camell, Christina
Venue
PLoS ONE
Published
2013-09-30
Volume
8
Issue
9
Pages
e75147
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2066786103
Cited by
76
References
39
Citations by year
2026: 6 · 2025: 8 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 11 · 2020: 7 · 2019: 6 · 2018: 3 · 2017: 10 · 2015: 3 · 2014: 3
FWCI
1.46
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • U.S. Department of Agriculture (6250-51000-046, 6250‐51000)
  • Vanderbilt University (DK59637)
  • Agricultural Research Service (6250-51000-046, 6250-51000)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK59637, U24DK059637, F31DK084841)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
oleic acid, M2 macrophages, mesenteric adipose tissue, high-fat diet, dietary fatty acids, macrophage polarization, CD206, ICAM-1, adipose tissue inflammation, palmitic acid, F4/80, CD11b
MeSH terms
Adipose Tissue, Animals, Dietary Fats, Unsaturated, Enzyme-Linked Immunosorbent Assay, Flow Cytometry, Macrophages, Male, Mesentery, Mice, Inbred C57BL, Intercellular Adhesion Molecule-1, Oleic Acid, Cell Proliferation, Mice, Real-Time Polymerase Chain Reaction

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