Abstract
P. gingivalis is a major pathogen that is involved in the onset and progression of periodontal disease. This study investigated the effect of resveratrol, a naturally occurring polyphenol, on P. gingivalis LPS-accelerated vascular inflammation, a key step in the progression of periodontitis. Resveratrol significantly inhibited the P. gingivalis LPS-induced adhesion of leukocytes to endothelial cells and to the aortic endothelium by down-regulating the cell adhesion molecules, ICAM-1 and VCAM-1. Moreover, the inhibition of the P. gingivalis LPS-induced cell adhesion molecules by resveratrol was mainly mediated by nuclear factor-kappaB (NF-kappaB). Resveratrol suppressed P. gingivalis LPS-stimulated IkappaBalpha phosphorylation and nuclear translocation of the p65 subunit of NF-kappaB in HMECs. Overall, these findings suggest that resveratrol significantly attenuates the P. gingivalis LPS-induced monocyte adhesion to the endothelium by suppressing the expression of the NF-kappaB-dependent cell adhesion molecules, suggesting its therapeutic role in periodontal pathogen-induced vascular inflammation.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Anti-Inflammatory Agents / pharmacology*
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Cell Adhesion / drug effects
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Dose-Response Relationship, Drug
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Endothelial Cells / drug effects*
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Endothelial Cells / immunology
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Humans
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I-kappa B Proteins / metabolism
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Intercellular Adhesion Molecule-1 / genetics
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Intercellular Adhesion Molecule-1 / metabolism*
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Leukocytes / drug effects
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Leukocytes / immunology
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Lipopolysaccharides / isolation & purification
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Lipopolysaccharides / pharmacology*
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Male
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NF-KappaB Inhibitor alpha
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Phosphorylation
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Porphyromonas gingivalis / chemistry
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Porphyromonas gingivalis / pathogenicity*
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RNA, Messenger / metabolism
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Rats
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Rats, Sprague-Dawley
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Resveratrol
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Stilbenes / pharmacology*
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Transcription Factor RelA / metabolism*
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Transcription, Genetic / drug effects
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U937 Cells
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Vascular Cell Adhesion Molecule-1 / genetics
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Vascular Cell Adhesion Molecule-1 / metabolism*
Substances
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Anti-Inflammatory Agents
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I-kappa B Proteins
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Lipopolysaccharides
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NFKBIA protein, human
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Nfkbia protein, rat
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RELA protein, human
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RNA, Messenger
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Stilbenes
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Transcription Factor RelA
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Vascular Cell Adhesion Molecule-1
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Intercellular Adhesion Molecule-1
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NF-KappaB Inhibitor alpha
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Resveratrol