Abstract
The effect of recombinant rat interferon-gamma (rRIFN-γ) on allograft rejection was studied in two rat heart transplantation models. Recipients were treated with rRIFN-γ by intraperitoneal or intravenous injection, either by bolus or continuous infusion. Treatment was started after transplantation and continued during a period ranging from 4 to 10 days; dosages varied from 2.5 x 102 U/kg/day to 3 x 106 U/kg/day. Controls were infused with PBS. Treatment with rRIFN-γ had no effect on allograft survival, irrespective of the route of administration, the dosage used or the duration of treatment. Higher dosages of rRIFN-γ induced serious morbidity and mortality. In conclusion, systemic treatment of cardiac allograft recipients with rRIFN-γ has no effect on graft rejection and is associated with serious toxicity and mortality when high dosages are used.
Original language | English |
---|---|
Pages (from-to) | 243-245 |
Number of pages | 3 |
Journal | Immunology |
Volume | 73 |
Issue number | 2 |
Publication status | Published - 1991 |