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Allograft Rejection

Researchers from University of Western Ontario report on findings in allograft rejection

Published in Cardiovascular Device Liability Week, October 28th, 2007

"' Vav1-Rac signaling plays a pivotal role in TCR/antigen and CD28 signals for T cell activation. However, pharmacological interference of this signaling has not been tested in the prevention of alloimmune-mediated allograft rejection," scientists in London, Canada report.

"It has been demonstrated that 6-thio-GTP, a metabolite of azathioprine, specifically inhibits Vav1-Rac activity in T lyrnpliocytes. Here we show the immunosuppressive efficacy of 6-thio-GTP in the prevention of cardiac allograft rejection. T cell proliferations were measured by H-3-thymidine uptake. The immunosuppressive activities of 6-tliio-GTP were tested in the cardiac allograft model of C57BL/6...

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