Title : A dual mechanism of immunosuppression by FK-506. Differential suppression of IL-4 and IL-10 levels in T helper 2 cells.

Pub. Date : 1993 Oct

PMID : 7692640






4 Functional Relationships(s)
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1 Supernatants from Th2 cells treated with FK-506 showed marked suppression of IL-4 but only moderate suppression of IL-10 levels. Tacrolimus interleukin 4 Mus musculus
2 Similar to results at the protein level, FK-506 suppressed steady state levels of IL-4 mRNA markedly but had a lesser effect on steady state levels of IL-10 mRNA. Tacrolimus interleukin 4 Mus musculus
3 Furthermore, FK-506 completely abrogated Con A-induced upregulation of IL-4 mRNA, but only slightly suppressed Con A-induced upregulation of IL-10 mRNA. Tacrolimus interleukin 4 Mus musculus
4 Therefore, the ability of FK-506 to differentially suppress the mRNA levels of immunostimulatory cytokines such as IL-2, IL-4, and IFN-gamma more than the mRNA levels of the immunosuppressive cytokine IL-10 suggests that the effective immunosuppression seen in vivo with FK-506 may be a combination of these 2 effects. Tacrolimus interleukin 4 Mus musculus