Staphylococcus aureus Panton-Valentine leukocidin causes necrotizing pneumonia
- PMID: 17234914
- DOI: 10.1126/science.1137165
Staphylococcus aureus Panton-Valentine leukocidin causes necrotizing pneumonia
Abstract
The Staphylococcus aureus Panton-Valentine leukocidin (PVL) is a pore-forming toxin secreted by strains epidemiologically associated with the current outbreak of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) and with the often-lethal necrotizing pneumonia. To investigate the role of PVL in pulmonary disease, we tested the pathogenicity of clinical isolates, isogenic PVL-negative and PVL-positive S. aureus strains, as well as purified PVL, in a mouse acute pneumonia model. Here we show that PVL is sufficient to cause pneumonia and that the expression of this leukotoxin induces global changes in transcriptional levels of genes encoding secreted and cell wall-anchored staphylococcal proteins, including the lung inflammatory factor staphylococcal protein A (Spa).
Comment in
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Microbiology. Mayhem in the lung.Science. 2007 Feb 23;315(5815):1082-3. doi: 10.1126/science.1139628. Science. 2007. PMID: 17322047 No abstract available.
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