title: Pharmacology of calcineurin antagonists.
abstract: Cyclosporine and tacrolimus share the same pharmacodynamic property of activated T-cell suppression via inhibition of calcineurin. The introduction of these drugs to the immunosuppressive repertoire of transplant management has greatly improved the outcomes in organ transplantation and constitutes arguably one of the major breakthroughs in modern medicine. To this date, calcineurin inhibitors are the mainstay of prevention of allograft rejection. The experience gained from the laboratory and clinical use of cyclosporine and tacrolimus has greatly advanced our knowledge about the nature of many aspects of immune response. However, the clinical practice still struggles with the shortcomings of these drugs: the significant inter- and intraindividual variability of their pharmacokinetics, the unpredictability of their pharmacodynamic effects, as well as complexity of interactions with other agents in transplant recipients. This article briefly reviews the pharmacological aspects of calcineurin antagonists as they relate to the mode of action and pharmacokinetics as well as drug interactions and monitoring.
authors.affiliation: Department of Medicine, Division of Nephrology, Hypertension and Transplantation, University of Florida College of Medicine, Gainesville, FL 32610-0224, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Kapturczak
authors.forename: H U
authors.initials: HU
authors.lastname: Meier-Kriesche
authors.forename: B
authors.initials: B
authors.lastname: Kaplan
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D065095:Calcineurin Inhibitors; D016572:Cyclosporine / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use; D004347:Drug Interactions; D016903:Drug Monitoring / Q000379:methods; D006801:Humans; D007166:Immunosuppressive Agents / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use; D016559:Tacrolimus / Q000737:chemistry / Q000493:pharmacokinetics / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D065095:Calcineurin Inhibitors; D007166:Immunosuppressive Agents; D016572:Cyclosporine; D016559:Tacrolimus