The Journal of Bone and Joint Surgery, Vol 58, Issue 6 826-832, Copyright © 1976 by Journal of Bone and Joint Surgery, Inc
Cellular and humoral immune response analysis of bone-allografted rats
DL Muscolo, S Kawai and RD Ray
Long-term cellular and humoral immune responses were studied in inbred rats
in which bone was allografted. Transplants were made across major
histocompatibility barriers. Mixed lymphocyte culture tests and humoral
cytotoxicity assays were performed in order to determine degrees of
cellular and humoral immunity. Grafts of complete bone and of bone free of
marrow elicited both types of immune response and it is proposed that
transplantation antigens for both types of reaction exist in the bone
tissue itself. A gene-dose effect was found. Allogeneic bone grafts gave a
stronger reaction than semiallogeneic grafts, and second-set grafts
triggered a hypersensitivity type of humoral immune response. This study
suggests that until the host-bone graft immunological relationship is
better understood, the graft tissue should be matched to the host for major
transplantation antigens to help prevent unexpected failures in massive
bone allotransplantation.