Synergistic effects of lipopolysaccharides from periodontopathic bacteria on pro-inflammatory cytokine production in an ex vivo whole blood model

被引：13

作者：

Bodet, C. ^{[1
]}

Grenier, D. ^{[1
]}

机构：

[1] Univ Laval, Grp Rech Ecol Buccale, Fac Med Dent, Quebec City, PQ G1V 0A6, Canada

来源：

MOLECULAR ORAL MICROBIOLOGY | 2010年 / 25卷 / 02期

基金：

加拿大健康研究院;

关键词：

cytokine; P; gingivalis; periodontitis; red complex; whole blood; TUMOR-NECROSIS-FACTOR; PORPHYROMONAS-GINGIVALIS; TREPONEMA-DENTICOLA; TANNERELLA-FORSYTHIA; CHRONIC PERIODONTITIS; BACTEROIDES-FORSYTHUS; SUBGINGIVAL PLAQUE; BIOFILM FORMATION; MIXED INFECTIONS; DISEASE;

D O I：

10.1111/j.2041-1014.2010.00566.x

中图分类号：

R78 [口腔科学];

学科分类号：

100302 [口腔临床医学];

摘要：

P>Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia have been strongly associated with chronic periodontitis. This disease is characterized by an accumulation of inflammatory cells in periodontal tissue and subgingival sites. The secretion of high levels of inflammatory cytokines by those cells is believed to contribute to periodontal tissue destruction. The aim of this study was to investigate the inflammatory response of whole blood from periodontitis patients following challenges with whole cells of P. gingivalis, T. denticola, and T. forsythia or their lipopolysaccharides (LPS), individually and in combination. Whole blood collected from seven periodontitis patients was stimulated with whole cells or LPS and the production of interleukin (IL)-1 beta, IL-6, IL-8, and tumor necrosis factor alpha (TNF-alpha) were quantified by enzyme-linked immunosorbent assays. The mono and mixed challenges with whole bacterial cells or LPS induced the secretion of high amounts of IL-1 beta, IL-6, IL-8, and TNF-alpha by the mixed leukocyte population from periodontitis patients. In addition, P. gingivalis LPS, T. denticola LPS, and T. forsythia LPS acted in synergy to induce high levels of IL-1 beta and TNF-alpha. This study suggests that P. gingivalis, T. denticola, and T. forsythia may contribute to the immunodestructive host response characteristic of periodontitis through synergistic effects of their LPS on the inflammatory response induced by a mixed population of leukocytes.

引用

页码：102 / 111

页数：10

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