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  • Title: A single administration of LFA-1 antibody confers prolonged allograft survival.
    Author: Talento A, Nguyen M, Blake T, Sirotina A, Fioravanti C, Burkholder D, Gibson R, Sigal NH, Springer MS, Koo GC.
    Journal: Transplantation; 1993 Feb; 55(2):418-22. PubMed ID: 7679531.
    Abstract:
    C57BL/6 (B6) thyroid gland transplanted to the left kidney capsule of an allogeneic (BALB/c) host was typically rejected in 14 days. A single administration of 500 micrograms of an antibody to the adhesion molecule, leucocyte function-associated antigen (LFA-1, CD11a), prevented all thyroid allograft rejection for at least 70 days. Fifty percent of the treated recipients retained intact allografts for 470 days. However, the same treatment with anti-CD11a could not protect a sensitized BALB/c mouse from rejecting a second B6 thyroid allograft. Production of donor-specific alloantibodies elicited by allograft rejection was also inhibited in this system. In this transplant model, the Ab therapy is more efficacious than that of FK506, administered daily for 14 days at 15 mg/kg. These results demonstrate the remarkable effect of an anti-LFA-1 antibody in promotion of allograft survival.
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