期刊
CELLULAR IMMUNOLOGY
卷 255, 期 1-2, 页码 17-25出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cellimm.2008.09.002
关键词
Bacteria; Dendritic cell; Toll-like receptor; Cytokines; Pathogens
资金
- Dutch Ministry of Defence [V502]
Activation of pattern recognition receptors such as Toll-like receptors (TLRs) by pathogens leads to activation and maturation of dendritic cells (DC), which orchestrate the development of the adaptive immune response. To create an overview of the effects of a broad range of pathogenic bacteria, their capacity to activate TLRs and to affect DC maturation, cytokine production and T cell polarizing capacity were determined. Different bacterial species differed in their potency to affect these parameters. In general, on the DC level differences were found in the maturation-inducing capacity of gram-negative and gram-positive bacteria. Remarkably, these differences did not result in differential polarization of the T cell response. With respect to TLRs, TLR4 activation by pathogens correlated with their ability to induce DC maturation, while for TLR2 and TLR5 such a correlation was absent. Taken together, this study provides insight into qualitative differences and general effects of pathogen-derived molecules on dendritic cells. (C) 2008 Elsevier Inc. All rights reserved.
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