Cyclosporin A

Cyclosporin A is an immunosuppressive agent, binds to the cyclophilin and then inhibits calcineurin with IC50 of 7 nM, widely used in organ transplantation to prevent rejection. (In Vitro) :Cyclosporin A is able to bind with the cyclophilin in T cells. Cyclosporin A works by forming a Cyclophilin-Cyclosporin A complex to inhibit calcineurin. Cyclosporin A inhibits calcineurin in stimulated cells with an IC50 value of 7 nM. Cyclosporin A suppresses the nuclear translocation of NF-AT. Cyclosporin A shows an effect on mitochondria via preventing the MTP from opening with an IC50 of 39 nM. (In Vivo) :Cyclosporin A has immunosuppressive activity, and is active via parenteral and p.o. administration in mice, rat and guinea pigs. Cyclosporin A can be used in organ transplantation to prevent rejection.