Description:
IC50 Value: 0.47 nM (Inhibition of lymphocyte proliferation) [1]
Tacrolimus is a potent immunosuppressive drug often administered to transplant recipient patients and exhibits a variety of adverse cardiovascular effects.
in vitro: MP and tacrolimus decreased the number of circulating helper-T cells with IC50 values of 23 ng/ml for MP and 6.7 ng/ml for tacrolimus. After coadministration of these drugs, an interaction occurs, but the nature (additive or antagonistic) of this interaction was not clear. The IC50 of tacrolimus for in vitro inhibition of lymphocyte proliferation was 0.39 ng/ml (0.47 nM) and 1.02 ng/ml (2.73 nM) for MP. The maximum percentage of inhibition was 94.6% for tacrolimus and 64.9% for MP [1]. K506 inhibited the proliferation of T cell clones stimulated with specific antigens in a dose-dependent manner, and at about 100-fold lower concentrations than CsA. FK506 inhibited both IL-2 secretion and IL-2 receptor expression of