Baboons undergoing orthotopic concordant cardiac xenotransplantation surviving more than 300 days: Effect of immunosuppressive regimen

Autor: Steven R. Gundry, Hironori Izutani, Leonard L. Bailey, Sandra Nehlsen Cannarella, Miki Asano, Omar R. Fagoaga
Rok vydání: 2003
Předmět:
Zdroj: The Journal of Thoracic and Cardiovascular Surgery. 125:60-70
ISSN: 0022-5223
DOI: 10.1067/mtc.2003.89
Popis: Objective: We reviewed long-term survival among hosts in 3 consecutive series of a rhesus monkey-baboon orthotopic cardiac xenotransplantation model with reference to host immune response, including the effectiveness in preventing rejection and limiting toxicity concerning infection, to evaluate specific immunosuppressive regimens for long-term outcomes. Methods: Six juvenile baboons surviving more than 300 days after transplantation were reviewed. Regimen A consisted of splenectomy, FK506, methotrexate, and antilymphocyte globulin. Regimen B consisted of pretransplantation and chronic maintenance with cyclosporine A (INN: ciclosporin), methotrexate, and antithymocyte globulin. Regimen C was the same as regimen B plus pretransplantation total lymphoid irradiation and intraoperative donor bone marrow cell infusion. Rejections were detected by means of echocardiography. Results: Long-term survivors in 3 groups were followed for a range of 332 to 515 days (mean, 436 days). Rejection frequency in regimens A, B, and C was 0.35, 0.58, and 0.18 per month, and rescue therapy days were 23 (4.8%), 123 (9.5%), and 20 (2.4%), respectively (P
Databáze: OpenAIRE