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http://purl.uniprot.org/citations/17667814http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
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Background

Activated T cells play a key role in allograft rejection. T cell activation requires signaling via the T cell receptor as well as costimulatory signals. Inducible costimulatory molecule (ICOS), with its ligand B7RP-1, is a recently discovered costimulatory molecule of the CD28 family. The role of this signaling pathway during the early phases of kidney allograft rejection is not clear so far.

Methods

Kidneys were orthotopically transplanted from BALB/c to C57BL/6 mice. Animals were assigned to five experimental groups: blocking anti-ICOS monoclonal antibody, ICOS fusion protein, anti-B7RP1 monoclonal antibody, B7RP-1 fusion protein, and control immunoglobulin G.

Results

Survival was significantly reduced in animals treated with ICOS monoclonal antibody (mAb) and B7RP-1 Fc as compared with controls. These animals had also a lower number of apoptotic graft infiltrating T cells, whereas the expression of intracellular interferon-gamma in CD3CD4 T cells was increased. Animals treated with ICOS Fc and B7RP-1 mAb had similar survival and numbers of apoptotic T cells as compared with controls.

Conclusions

In summary, the blockade of ICOS with ICOS mAb or B7RP-1 Fc reduced the amount of apoptosis of infiltrating lymphocytes and resulted in continuous inflammatory processes with progressive tissue damage and graft failure."xsd:string
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http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Deng M."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Huang H."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Lu R."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Wang M."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Lutz J."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Heemann U."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Ouyang N."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/author"Strobl M."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/date"2007"xsd:gYear
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/name"Transplantation"xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/pages"223-230"xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/title"ICOS/B7RP-1 interference in mouse kidney transplantation."xsd:string
http://purl.uniprot.org/citations/17667814http://purl.uniprot.org/core/volume"84"xsd:string
http://purl.uniprot.org/citations/17667814http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/17667814
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