Klebsiella pneumoniae and type 3 fimbriae: nosocomial infection, regulation and biofilm formation.

Publication/Presentation Date

8-1-2012

Abstract

The Gram-negative opportunistic pathogen Klebsiella pneumoniae is responsible for causing a spectrum of nosocomial and community-acquired infections. Globally, K. pneumoniae is a frequently encountered hospital-acquired opportunistic pathogen that typically infects patients with indwelling medical devices. Biofilm formation on these devices is important in the pathogenesis of these bacteria, and in K. pneumoniae, type 3 fimbriae have been identified as appendages mediating the formation of biofilms on biotic and abiotic surfaces. The factors influencing the regulation of type 3 fimbrial gene expression are largely unknown but recent investigations have indicated that gene expression is regulated, at least in part, by the intracellular levels of cyclic di-GMP. In this review, we have highlighted the recent studies that have worked to elucidate the mechanism by which type 3 fimbrial expression is controlled and the studies that have established the importance of type 3 fimbriae for biofilm formation and nosocomial infection by K. pneumoniae.

Volume

7

Issue

8

First Page

991

Last Page

1002

ISSN

1746-0921

Disciplines

Medicine and Health Sciences

PubMedID

22913357

Department(s)

Department of Pathology and Laboratory Medicine

Document Type

Article

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