Article: New findings from Columbia University in the area of clinical investigation published.

According to a study from the United States, "The activation of type I IFN signaling is a major component of host defense against viral infection, but it is not typically associated with immune responses to extracellular bacterial pathogens. Using mouse and human airway epithelial cells, we have demonstrated that Staphylococcus aureus activates type I IFN signaling, which contributes to its virulence as a respiratory pathogen."

"This response was dependent on the expression of protein A and, more specifically, the Xr domain, a short sequence-repeat region encoded by DNA that consists of repeated 24-bp sequences that are the basis of an internationally used ...

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