The collagen-binding adhesin is a virulence factor in Staphylococcus aureus keratitis.

Infect Immun

Sid W. Richardson Ocular Microbiology Laboratory, Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Houston, Texas, USA.

Published: June 2000

A collagen-binding strain of Staphylococcus aureus produced suppurative inflammation in a rabbit model of soft contact lens-associated bacterial keratitis more often than its collagen-binding-negative isogenic mutant. Reintroduction of the cna gene on a multicopy plasmid into the mutant helped it regain its corneal adherence and infectivity. The topical application of a collagen-binding peptide before bacterial challenge decreased S. aureus adherence to deepithelialized corneas. These data suggest that the collagen-binding adhesin is involved in the pathogenesis of S. aureus infection of the cornea.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC97678PMC
http://dx.doi.org/10.1128/IAI.68.6.3776-3779.2000DOI Listing

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