Document Detail


Triclosan inhibition of acute and chronic inflammatory gene pathways.
MedLine Citation:
PMID:  20507366     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIM: We sought to determine whether triclosan (2,4,4'-trichloro-2'-hydroxydiphenylether), an extensively used anti-plaque agent with broad-spectrum anti-microbial activity, with reported anti-inflammatory effects via inhibition of prostaglandin E2 and interleukin 1 (IL-1)beta, could also more broadly suppress multiple inflammatory gene pathways responsible for the pathogenesis of gingivitis and periodontitis. MATERIALS AND METHODS: As an exploratory study, the effects of triclosan on the inflammatory gene expression profile were assessed ex vivo using peripheral whole blood samples from eight periodontally healthy donors. Ten-millilitres whole blood aliquots were incubated 2 h with 0.3 microg/ml Escherichia coli lipopolysaccharide (LPS) with or without 0.5 microg/ml triclosan. Affymetrix microarray gene expression profiles from isolated leucocytes and pathway-specific quantitative polymerase chain reaction arrays were used to investigate changes in expression of target cytokines and cell signalling molecules. Results: Ex vivo human whole blood assays indicated that triclosan significantly down-regulated the LPS-stimulated expression of Toll-like receptor signalling molecules and other multiple inflammatory molecules including IL-1 and IL-6 and the dampening of signals that activate the T-helper type 1 acquired immune response via suppression of CD70 with concomitant up-regulation of growth factors related to bone morphogenetic protein (BMP)2 and BMP6 synthesis. Conclusions: Anti-inflammatory effects were found in this exploratory survey, including suppression of microbial-pathogen recognition pathway molecules and the suppression of acute and chronic mediators of inflammation.
Authors:
Silvana P Barros; Sodsi Wirojchanasak; David A Barrow; Fotinos S Panagakos; William Devizio; Steven Offenbacher
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of clinical periodontology     Volume:  37     ISSN:  1600-051X     ISO Abbreviation:  J. Clin. Periodontol.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-28     Completed Date:  2010-08-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425123     Medline TA:  J Clin Periodontol     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  412-8     Citation Subset:  D; IM    
Affiliation:
School of Dentistry, Center for Oral and Systemic Diseases, North Carolina Oral Health Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27709, USA. silvana_barros@dentistry.unc.edu
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Adult
Anti-Inflammatory Agents / pharmacology*
Antigens, CD70 / antagonists & inhibitors
Bone Morphogenetic Protein 2 / biosynthesis,  genetics
Bone Morphogenetic Protein 6 / biosynthesis,  genetics
Chronic Disease
Female
Gene Expression Profiling*
Host-Pathogen Interactions / drug effects
Humans
Inflammation / genetics*
Inflammation Mediators / antagonists & inhibitors*
Interleukin-1 / antagonists & inhibitors,  biosynthesis,  genetics
Interleukin-6 / antagonists & inhibitors,  biosynthesis,  genetics
Lipopolysaccharides / pharmacology
Male
Oligonucleotide Array Sequence Analysis
Signal Transduction / drug effects
Th1 Cells / immunology
Toll-Like Receptors / antagonists & inhibitors,  biosynthesis,  genetics*
Triclosan / pharmacology*
Young Adult
Chemical
Reg. No./Substance:
0/Anti-Inflammatory Agents; 0/Antigens, CD70; 0/Bone Morphogenetic Protein 2; 0/Bone Morphogenetic Protein 6; 0/Inflammation Mediators; 0/Interleukin-1; 0/Interleukin-6; 0/Lipopolysaccharides; 0/Toll-Like Receptors; 3380-34-5/Triclosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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