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Multiple anti-inflammatory and anti-atherosclerotic properties of red wine polyphenolic extracts: differential role of hydroxycinnamic acids, flavonols and stilbenes on endothelial inflammatory gene expression.
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- Author(s): Calabriso, Nadia; Scoditti, Egeria; Massaro, Marika; Pellegrino, Mariangela; Storelli, Carlo; Ingrosso, Ilaria; Giovinazzo, Giovanna; Carluccio, Maria
- Source:
European Journal of Nutrition. Mar2016, Vol. 55 Issue 2, p477-489. 13p. 2 Charts, 6 Graphs. - Source:
- Additional Information
- Subject Terms: ATHEROSCLEROSIS prevention; REACTIVE oxygen species; ANTI-inflammatory agents; BIOLOGICAL assay; BIOLOGICAL models; BLOOD vessels; CELL adhesion molecules; PHYSICAL & theoretical chemistry; COLONY-stimulating factors (Physiology); ENDOTHELIUM; POLYMERASE chain reaction; POLYPHENOLS; RESEARCH funding; STATISTICS; T-test (Statistics); WINES; DNA-binding proteins; DATA analysis; STATISTICAL significance; RESVERATROL; FLAVONOLS; DESCRIPTIVE statistics; IN vitro studies; ONE-way analysis of variance; PHARMACODYNAMICS
- Subject Terms:
- Abstract: Purpose: The aim of the study was to evaluate the vascular anti-inflammatory effects of polyphenolic extracts from two typical South Italy red wines, the specific contribution of individual polyphenols and the underlying mechanisms of action. Methods: Human endothelial cells were incubated with increasing concentrations (1-50 μg/mL) of Primitivo and Negroamaro polyphenolic extracts (PWPE and NWPE, respectively) or pure polyphenols (1-25 μmol/L), including hydroxycinnamic acids ( p-coumaric, caffeic and caftaric acids), flavonols (kaempferol, quercetin, myricetin) or stilbenes ( trans-resveratrol, trans-piceid) before stimulation with lipopolysaccharide. Through multiple assays, we analyzed the endothelial-monocyte adhesion, the endothelial expression of adhesion molecules (ICAM-1, VCAM-1 and E-Selectin), monocyte chemoattractant protein-1 (MCP-1) and macrophage colony-stimulating factor (M-CSF), as well as ROS intracellular levels and the activation of NF-κB and AP-1. Results: Both PWPE and NWPE, already at 1 μg/mL, inhibited monocyte adhesion to stimulated endothelial cells, a key event in triggering vascular inflammation. They down-regulated the expression of adhesion molecules, ICAM-1, VCAM-1, E-Selectin, as well as MCP-1 and M-CSF, at mRNA and protein levels. All polyphenols reduced intracellular ROS, and everything, except caftaric acid, inhibited the endothelial expression of adhesion molecules and MCP-1, although with different potency. Flavonols and resveratrol significantly reduced also the endothelial expression and release of M-CSF. The decrease in endothelial inflammatory gene expression was related to the inhibition of NF-κB and AP-1 activation but not to intracellular oxidative stress. Conclusions: This study showed multiple anti-inflammatory and anti-atherosclerotic properties of red wine polyphenolic extracts and indentified specific bioactive polyphenols which could counteract inflammatory diseases including atherosclerosis. [ABSTRACT FROM AUTHOR]
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