Effects of fatty acids on endothelial cells: inflammation and monocyte adhesion.

The Journal of Surgical Research
S Marlene GrenonMillie Hughes-Fulford

Abstract

Diet is known to have an important impact on cardiovascular health. n-3 Fatty acids (FAs), found in high quantity in fish oil, have demonstrated beneficial effects in patients with coronary artery disease. The role of n-6 FAs remains more controversial. The objective of this study was to examine the effect of arachidonic acid (AA), an n-6 FA, and eicosapentanoic acid (EPA), an n-3 FA, on the interaction between monocytes and endothelial cells (ECs). We used a cellular model of ECs (EA.hy.926) and monocytes (human leukemic myelomonocytic U937). Confluent ECs were treated with AA or EPA, in the presence of tumor necrosis factor-alpha (TNF-α) or vehicle alone for either 4 or 24h. Adhesion of monocytes to the endothelial monolayer was performed. For gene expression, reverse transcription, followed by real-time quantitative polymerase chain reaction, was performed. There was a significant increase in adhesion of monocytes to the endothelial monolayer in the presence of n-6 FAs, both in the presence and in the absence of TNF-α at 4 and 24h. The adhesion of monocytes to the endothelial monolayer was decreased with n-3 FAs at 24h. Intercellular adhesion molecule 1, vascular cell adhesion molecule 1, E-Selectin, Interleukin 6, and TNF-α...Continue Reading

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Citations

Sep 13, 2012·Journal of Pregnancy·R E FisherN A Karrow
Sep 5, 2015·The Journal of Nutritional Biochemistry·Justine MarchixPhilippe Legrand
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