title: New immunosuppressive protocols with the advent of novel biological drugs.
abstract: Long-term results in renal transplantation are not as good as it has been expected. Thus, there is increasing interest in new immunosuppressive drugs and strategies. Among such strategies, antithymocyte globulin, particularly in calcineurin inhibitor-free protocols, may allow generation of regulatory T cells (Tregs), a cell population with suppressor properties that has been associated with donor-specific cellular hyporesponse and suppression of B-cell response by inhibiting T-cell help. Interestingly, belatacept despite targeting the main costimularory signal for Tregs survival does not abrogated generation of Tregs. Belatacept has excellent short-term results in calcineurin inhibitor-free protocols. On the other hand, it has been recently shown that CD40-C40L is critical to develop donor-specific antibodies. Perhaps, association of T-cell depleting agents with CD40-CD40L blockade may avoid both cellular rejection and, more interestingly, human leukocyte antigen sensitization.
authors: Servei de Nefrologia, Hospital Universitari de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain. jmcruzado@bellvitgehospital.cat
authors: Josep M
authors: JM
authors: Cruzado
authors: Oriol
authors: O
authors: Bestard
authors: Josep M
authors: JM
authors: Grinyó
mesh_terms: D000069594:Abatacept; D000911:Antibodies, Monoclonal / Q000627:therapeutic use; D000961:Antilymphocyte Serum; D001402:B-Lymphocytes / Q000276:immunology; D018122:B7-1 Antigen / Q000276:immunology; D018106:CD28 Antigens / Q000276:immunology; D002470:Cell Survival / Q000276:immunology; D006084:Graft Rejection / Q000517:prevention & control; D006680:HLA Antigens / Q000276:immunology; D006801:Humans; D018796:Immunoconjugates / Q000627:therapeutic use; D007165:Immunosuppression Therapy / Q000379:methods; D007166:Immunosuppressive Agents / Q000145:classification / Q000627:therapeutic use*; D016030:Kidney Transplantation / Q000276:immunology*; D008212:Lymphocyte Depletion / Q000379:methods; D013601:T-Lymphocytes / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D000911:Antibodies, Monoclonal; D000961:Antilymphocyte Serum; D018122:B7-1 Antigen; D018106:CD28 Antigens; D006680:HLA Antigens; D018796:Immunoconjugates; D007166:Immunosuppressive Agents; D000069594:Abatacept; C512542:thymoglobulin