To write:
Cyclosporin A is an immunosuppressive drug commonly used in transplant patients to prevent graft rejection by alloreactive T cells. It acts by interfering with the signaling pathway that leads from the T-cell receptor to transcription in the nucleus of the genes for the cytokine IL-2 and a chain of the IL-2 receptor. Why does preventing the transcription of these genes lead to immunosuppression?
Introduction:
Immunosuppressive drugs usually suppress the immune response via several mechanisms. In organs transplantation, immunosuppressive therapy utilized to prevent activation and proliferation of alloreactive T cells, while not completely prevent long-term rejection. Cyclosporine A is categorized under calcineurin inhibitors, which block calcineurin activity and regulate the immune response of the body.
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