Passive immunological enhancement of muscle allografts in rats.

The effect of the passive administration of antiserum obtained from recipients immunized with antigens from H-1 + non-H-1 incompatible donors on muscle allograft survival in rats was studied. In transplantation across the non-H-1 antigenic barrier (H-1 compatible but non-H-1 incompatible) a satisfactory degree of immunological enhancement was achieved. Recovery of contractile properties of muscle allografts after different immunological treatments of the recipients was compared.