Molecular basis of in vivo biofilm formation by bacterial pathogens.

Molecular basis of in vivo biofilm formation by bacterial pathogens.
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DOI:
10.1016/j.chembiol.2012.10.022
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发表时间:
2012-12-21
影响因子:
--
通讯作者:
Otto M
Otto M
中科院分区:
生物1区
文献类型:
--
作者:
Joo HS;Otto M

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细菌生物膜参与了许多严重的慢性感染。近年来,在体外模拟生物膜感染导致确定的微生物决定因素控制生物膜的发展。然而,我们缺乏信息,以确定是否在体外生物膜形成机制与生物膜相关的感染。在这里,我们讨论了生物膜形成的分子基础,使用葡萄球菌和铜绿假单胞菌来说明关键点,因为它们的生物膜发展过程是很好的研究。我们将专注于体内研究结果,如在动物感染模型中获得的结果,并严格评价体外研究结果的体内相关性。虽然群体感应在生物膜形成中的作用的结果是相互矛盾的,我们现在认为,在体外和体内研究的整合允许这种机制,因为它涉及到生物膜感染的分化观点。
Bacterial biofilms are involved in a multitude of serious chronic infections. In recent years, modeling biofilm infection in vitro led to the identification of microbial determinants governing biofilm development. However, we lack information as to whether biofilm formation mechanisms identified in vitro have relevance for biofilm-associated infection. Here, we discuss the molecular basis of biofilm formation using staphylococci and Pseudomonas aeruginosa to illustrate key points, as their biofilm development process is well-studied. We will focus on in-vivo findings such as obtained in animal infection models, and critically evaluate in-vivo relevance of in-vitro findings. Although results on the role of quorum-sensing in biofilm formation have been conflicting, we now argue that integration of in-vitro and in-vivo studies allows a differentiated view of this mechanism as it relates to biofilm infection.
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