Chimeric tolerance is more robust than non-chimeric tolerance in the model of posttransplant TLI, ATG, and donor cell infusion, and is associated with less chronic rejection.

Cyclosporine facilitated long-term graft acceptance in a tolerization protocol that induced mixed chimerism, but prevented long-term graft acceptance in a tolerization protocol that did not induce chimerism.

The intravenous injection of donor dendritic cell precursors derived from blood monocytes facilitates long-term acceptance of heart allografts.

The prolongation of survival of IL-10 cDNA transferred liver allografts might be due to inhibition of the early phase of alloimmune-response by over expression of IL-10, despite the expression of IL-2 and interferon-gamma.

Infusion of donor monocytes facilitated graft prolongation via immune deviation.