Infection of human endothelial cells with Staphylococcus aureus induces transcription of genes encoding an innate immunity response
2005 (English)In: Scandinavian Journal of Immunology, ISSN 0300-9475, E-ISSN 1365-3083, Vol. 61, no 6, 536-544 p.Article in journal (Refereed) Published
Staphylococcus aureus is a gram-positive bacterium frequently isolated from patients with bloodstream infections. Endothelial cells (EC) play an important role in host defence against bacteria, and recent reports have shown that infection of EC with S. aureus induces expression of cytokines and cell surface receptors involved in activating the innate immune response. The ability of S. aureus to invade nonphagocytic cells, including EC, has been documented. However, the knowledge of the role of EC in pathogenesis of S. aureus infection is still limited. In this study, we investigate the gene-expression program in human EC initiated by internalized 5. aureus, using microarray analysis. We found 156 genes that were differentially regulated at least threefold, using arrays representing 14,239 genes. Many of the up regulated genes code for proteins involved in innate immunity, such as cytokines, chemokines and cell adhesion proteins. Other upregulated genes encode proteins involved in antigen presentation, cell signalling and metabolism. Furthermore, intracellular bacteria survived for days without inducing EC death. © 2005 Blackwell Publishing Ltd.
Place, publisher, year, edition, pages
2005. Vol. 61, no 6, 536-544 p.
National CategoryMedical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-28868DOI: 10.1111/j.1365-3083.2005.01597.xLocal ID: 14062OAI: oai:DiVA.org:liu-28868DiVA: diva2:249680