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Overview
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Cyclosporin A (Cyclosporine A; CsA) is a naturally occuring cyclic polypeptide immunosuppressive agent and a calcineurin inhibitor, which binds to the cyclophilin and then inhibits calcineurin with IC50 of 7 nM in a cell-free assay. It is widely used in organ transplantation to prevent rejection. Cyclosporin A can also be used for rheumatoid arthritis, psoriasis, Crohn's disease, nephrotic syndrome, and in organ transplants to prevent rejection. Cyclosporin A is responsible for the opening of the MPTP (mitochondrial permeability transition pore). When tested with retinal ganglion cells, Cyclosporin A showed a high selectivity for the expression of cyclophilin D and prolonged the cells survival. In human First-Trimester Trophoblast Cells, Cyclosporin A treatment promoted cells growth and invasiveness by inhibiting Ca2+/Calcineurin/NFAT signal. Cyclosporin A treatment promoted the apoptosis of T-cell by upregulating Fas/FasL and caspase activities
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Overview