Nephrol Dial Transplant (2002) 17: 1374-1379
© 2002 European Renal Association-European Dialysis and Transplant Association
Editorial Comments
The evolving role of chemokines and their receptors in acute allograft rejection
Department of Nephrology and Renal Transplantation, Queen Elizabeth Hospital, University Hospital Birmingham NHS Trust, Birmingham, UK
Keywords: acute allograft rejection; chemokines; chemokine receptors; graft survival; renal transplantation
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Introduction
In renal transplantation, the occurrence of one or more episodes of acute allograft rejection (AAR) is a major determinant of graft survival [1]. Most episodes of AAR are caused by cell-mediated processes and require the infiltration of alloactivated T cells into the engrafted organ. These cells are characterized by the expression of surface markers indicating a memory (CD45RO+) and/or activated (CD25+) phenotype [2,3], which develop subsequent to T-cell receptor (TCR) interactions with MHCalloantigen complexes or donor MHC in secondary lymphoid tissue [4]. A further result of this process is the expression of chemokine receptors that direct the trafficking of alloactivated T cells into the graft in response to local production of chemokines, initially by resident cells. There is now deep interest in this area that reflects the recent identification of restricted chemokinereceptor interactions as key functional events in T-cell recruitment and potential therapeutic targets
T-cell trafficking
Chemokines and their receptors in human renal transplantation
The biology of CXCR3 and CCR5
Animal models for CXCR3 and CCR5 and their ligands
CXCR3 and CCR5 and their ligands in human renal transplantation
CX3CL1/fractalkine
Other chemokines and their receptors in AAR
Conclusions
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