NCIt definition : Any agent that inhibits calcineurin (protein phosphatase 3; PPP3), a serine/threonine
protein phosphatase dependent on calcium and calmodulin, with immunosuppressant activity.
Inhibition of calcineurin prevents dephosphorylation of the transcription factor nuclear
factor of activated T-cells, cytoplasmic (NFATc), which prevents its translocation
to the nucleus and the subsequent induction of the expression of interleukin-2 (IL-2).
This prevents IL-2-mediated proliferation and activation of T-cells, and T-lymphocyte-mediated
immune responses.;