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Mice given short courses of anti-CD4 and anti-CD8 monoclonal antibodies became tolerant of allogeneic skin grafted at the same time. Tolerance could be obtained without T cell depletion across multiple minor antigen mismatches, both in naive and primed animals, demonstrating that peripheral T cells could be tolerized, even if they had been previously activated. Where donor and recipient were incompatible across the whole major histocompatibility complex, specific tolerance could be achieved by using a combination of depleting followed by non-depleting antibodies, where each alone was unsuccessful. Although mice clearly tolerated their original skin grafts, we observed in some strain combinations that a second fresh, but genotypically identical graft, was slowly rejected. Such mice also possessed T cells which could proliferate to donor-type stimulator cells in vitro. Whatever the mechanisms, we have demonstrated that operational transplantation tolerance can be achieved with simple, non-toxic antibody therapy. The introduction of comparable tolerance-inducing regimens in clinical organ transplantation could obviate the need for long-term immunosuppression and its unfortunate side effects.

Original publication

DOI

10.1002/eji.1830201232

Type

Journal article

Journal

Eur J Immunol

Publication Date

12/1990

Volume

20

Pages

2747 - 2755

Keywords

Animals, Antibodies, Monoclonal, Antigens, CD4, Antigens, CD8, Antigens, Differentiation, T-Lymphocyte, Antigens, Surface, Antigens, Thy-1, Graft Survival, Histocompatibility, Immune Tolerance, Major Histocompatibility Complex, Mice, Mice, Inbred Strains, Minor Histocompatibility Loci, Skin Transplantation, T-Lymphocytes