Abstract

Objective To observe the effect of FTY720 and ICAM-1 mAb mono and combination therapy in cardiac allo-transplantation in rats. Methods Rats were randomly assigned to 9 groups, heart allo-transplantation were performed in abdominal site with micro-surgical technique. Recipients with allografts were treated with different doses of FTY720 and (or) ICAM-1 mAb. Graft survival, histopathology and level of serum IL-2, IFN-γ, IL-4, IL-10 were investigated. Results Low doses of FTY720 (1mg/kg) combined with ICAM-1 mAb achieved synergistic effect in the prolongation of cardiac graft survival, combination index(CI)=0.67. Conclusion Concomitant therapy of FTY720 and ICAM-1 mAb achieved a synergistic effect in the prolongation of heart allograft survival in rats.

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