Abstract
Mizoribine is a well-known immunosuppressive drug, based on a nucleoside scaffold, that targets inosine-monophosphate dehydrogenase (IMPDH). In an effort to increase its in vivo efficacy, three different types of prodrugs (a phosphoramidate prodrug, a lipophilic ester derivative and an amino acid conjugate) were prepared. Screening of these prodrugs in a rapid whole blood assay revealed that the two ester-based mizoribine prodrugs potently inhibited interleukin 2 secretion. Moreover, these prodrugs were able to prolong graft survival, when evaluated in a mouse model of cardiac allograft transplantation. Strikingly, a combination therapy of these mizoribine prodrugs with tacrolimus had a synergistic in vivo effect.
Accepted Version
Published Version
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