title: Molecular basis of in vivo biofilm formation by bacterial pathogens.
abstract: Bacterial biofilms are involved in a multitude of serious chronic infections. In recent years, modeling of biofilm infection in vitro has led to the identification of microbial determinants that govern biofilm development. However, we lack information as to whether the biofilm formation mechanisms identified in vitro have relevance for biofilm-associated infection. Here, we discuss the molecular basis of biofilm formation. Staphylococci and Pseudomonas aeruginosa are used to illustrate key points because their biofilm development process has been well studied. We focus on in vivo findings, such as obtained in animal infection models, and critically evaluate the in vivo relevance of in vitro findings. Although conflicting results about the role of quorum sensing in biofilm formation have been obtained, we argue that integration of in vitro and in vivo studies allows a differentiated view of this mechanism as it relates to biofilm infection.
authors.affiliation: Pathogen Molecular Genetics Section, Laboratory of Human Bacterial Pathogenesis, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA.
authors.forename: Hwang-Soo
authors.initials: HS
authors.lastname: Joo
authors.forename: Michael
authors.initials: M
authors.lastname: Otto
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D018441:Biofilms / Q000187:drug effects / Q000254:growth & development*; D006801:Humans; D011552:Pseudomonas Infections / Q000382:microbiology* / Q000628:therapy; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000502:physiology*; D053038:Quorum Sensing; D013203:Staphylococcal Infections / Q000382:microbiology* / Q000628:therapy; D013210:Staphylococcus / Q000187:drug effects / Q000502:physiology*
chemical_list: D000900:Anti-Bacterial Agents