Bacterial interactions in pathogenic subgingival plaque

被引:30
作者
Ng, Hong Min [1 ]
Kin, Lin Xin [1 ]
Dashper, Stuart G. [1 ]
Slakeski, Nada [1 ]
Butler, Catherine A. [1 ]
Reynolds, Eric C. [1 ]
机构
[1] Univ Melbourne, Oral Hlth Cooperat Res Ctr, Melbourne Dent Sch, Inst Bio21, 720 Swanston St, Melbourne, Vic 3010, Australia
基金
英国医学研究理事会;
关键词
Polymicrobial biofilm; Treponema denticola; Porphyromonas gingivalis; Chemotaxis; Motility; Metabolic synergism; TREPONEMA-DENTICOLA ATCC-35405; PORPHYROMONAS-GINGIVALIS BIOFILMS; STREPTOCOCCUS-GORDONII; TANNERELLA-FORSYTHIA; PERIODONTAL-DISEASE; CANDIDA-ALBICANS; DENTAL PLAQUE; GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE; AGROBACTERIUM-TUMEFACIENS; POLYMICROBIAL INFECTIONS;
D O I
10.1016/j.micpath.2015.10.022
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Chronic periodontitis has a polymicrobial biofilm aetiology. Polymicrobial biofilms are complex, dynamic microbial communities formed by two or more bacterial species that are important for the persistence and proliferation of participating microbes in the environment. Interspecies adherence, which often involves bacterial surface-associated molecules, and communications are essential in the spatial and temporal development of a polymicrobial biofilm, which in turn is necessary for the overall fitness of a well-organized multispecies biofilm community. In the oral cavity, interactions between key oral bacterial species, including Porphyromonas gingivalis, Treponema denticola and Tannerella forsythia, are essential for the progression of chronic periodontitis. In vivo, P. gingivalis and T. denticola are frequently found to co-exist in deep periodontal pockets and have been co-localized to the superficial layers of subgingival plaque as microcolony blooms adjacent to the pocket epithelium, suggesting possible interbacterial interactions that contribute towards disease. The motility and chemotactic ability of T denticola, although not considered as classic virulence factors, are likely to be important in the synergistic biofilm formation with P. gingivalis. In vitro, P. gingivalis and T. denticola display a symbiotic relationship in nutrient utilization and growth promotion. Together these data suggest there is an intimate relationship between these two species that has evolved to enhance their survival and virulence. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:60 / 69
页数:10
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