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  • Title: [Interleukin-2 receptor blockers in renal transplantation].
    Author: Basić-Jukić N, Bubić-Filipi L, Danić A, Pasini J, Kes P.
    Journal: Acta Med Croatica; 2004; 58(5):395-9. PubMed ID: 15756806.
    Abstract:
    The last two decades have witnessed significant advances in the renal transplantation immunosuppressive protocols. The introduction of mycophenolate mofetil, tacrolimus, sirolimus and polyclonal antibodies has significantly improved graft survival. However, intensification of immunosuppression results in complications such as malignant diseases, opportunistic infections and metabolic disturbances with consequential increase in cardiovascular mortality. Advances in molecular engineering have made possible the development of monoclonal humanized or chimeric antibodies, which will not induce the host immune response with production of neutralizing antibodies or serum sickness. Antibodies directed against the alpha chain of human IL-2 receptor have recently been introduced into immunosuppressive protocols. Daclizumab is a humanized antibody, and basiliximab is a chimeric antibody, engineered by cloning segments of the murine immunoglobulin sequence into the human-immunoglobulin gene. It decreases immunogenicity while maintaining high specificity for IL-2R alpha chain. The efficacy and safety of both preparations have been reported in large randomized studies. Their use in induction resulted in a significant decrease in acute graft rejections after renal transplantation. The possibility of decreasing the dose or complete withdrawal of certain immunosuppressive agents with the use of IL-2R blockers seems promising for further improvement in the longterm graft survival. Longterm follow-up is necessary to determine their role in solid organ transplantation.
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