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To navigate into and within tissues, leukocytes require guidance cues that enable them to recognize which tissues to enter and which to avoid. Such cues are partly provided at the time of extravasation from blood by an endothelial address code on the luminal surface of the vascular endothelium. Here, we review the evidence that fibroblasts help define an additional stromal address code that directs leukocyte behaviour within tissues. We examine how this stromal code regulates site-specific leukocyte accumulation, differentiation and survival in a variety of physiological stromal niches, and how the aberrant expression of components of this code in the wrong tissue at the wrong time contributes to the persistence of chronic inflammatory diseases.

Original publication

DOI

10.1016/j.it.2004.11.014

Type

Journal article

Journal

Trends Immunol

Publication Date

03/2005

Volume

26

Pages

150 - 156

Keywords

Dendritic Cells, Endothelium, Vascular, Fibroblasts, Leukocytes, Models, Biological, Stromal Cells, T-Lymphocytes