How Calcineurin Inhibitors Prevent the Body from Rejecting New Organs
In short: Understanding the molecular gatekeepers of the immune system is essential for modern transplant medicine. This video explains how specific drugs block the signals that cause the body to attack foreign tissue.
Calcineurin inhibitors, primarily tacrolimus and cyclosporine, serve as vital immunosuppressants. Their primary role is to prevent organ transplant rejection, where they are typically administered alongside steroids and mycophenolate. Beyond transplants, they are utilized to treat severe atopic dermatitis and graft versus host disease in bone marrow transplant recipients.
The mechanism of action centers on the inhibition of Interleukin-2 (IL2) synthesis. By blocking this specific signaling pathway, these medications dampen the immune response. While less common for rheumatologic conditions today, they may still be used for specific cases like lupus nephritis.
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Sources
- Summary by Intellect · source: Calcineurin Inhibitors (Tacrolimus and Cyclosporine) IL2 - Mechanism of action, adverse effects
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