Specific acceptance of cardiac allograft after treatment with antibodies to ICAM-1 and LFA-1.
An indefinite survival of cardiac allografts between fully incompatible mice strains was observed when monoclonal antibodies (MAbs) to intercellular adhesion molecule-1 (ICAM-1) and leukocyte function-associated antigen-1 (LFA-1) were simultaneously administered after the transplantation for 6 days. Mice with long-term surviving cardiac allografts accepted skin grafts from the donor-strain but rejected skin grafts from a third-party strain. Because MAbs to ICAM-1 or LFA-1 alone were insufficient for prolonged tolerance, the two MAbs probably acted synergistically to induce specific unresponsiveness. Thus, ICAM-1----LFA-1 adhesion participates in the induction of allograft rejection and MAbs may be useful as therapeutic agents.
Cardiac Unit, Massachusetts General Hospital, Boston, 02114.
M
M
Isobe
H
H
Yagita
K
K
Okumura
A
A
Ihara
D000818:Animals; D000911:Antibodies, Monoclonal / Q000008:administration & dosage / Q000627:therapeutic use*; D015815:Cell Adhesion Molecules / Q000276:immunology*; D003602:Cytotoxicity, Immunologic; D006085:Graft Survival; D016027:Heart Transplantation / Q000276:immunology* / Q000473:pathology; D007111:Immunity, Cellular; D007165:Immunosuppression Therapy; D018799:Intercellular Adhesion Molecule-1; D016169:Lymphocyte Function-Associated Antigen-1 / Q000276:immunology*; D051379:Mice; D008815:Mice, Inbred Strains; D051381:Rats; D016038:Skin Transplantation / Q000276:immunology; D013154:Spleen / Q000276:immunology
D000911:Antibodies, Monoclonal; D015815:Cell Adhesion Molecules; D016169:Lymphocyte Function-Associated Antigen-1; D018799:Intercellular Adhesion Molecule-1