Graft-versus-host disease in cyclosporin A-treated rats after syngeneic and autologous bone marrow reconstitution.

Abstract
Lethally irradiated rats treated with cyclosporin A (CsA) for 20-40 days developed classic graft-vs.-host disease (GVHD) when reconstituted with syngeneic or autologous bone marrow, upon discontinuation of CsA; normal rats did not. Syngeneic GVHD was transferred to irradiated, but not normal, syngeneic recipients. Normal spleen cells failed to prevent the development or adoptive transfer of syngeneic GVHD.