Abstract:
BACKGROUND:Deoxyspergualin (DSG), a potent immunosuppressive drug, has been clinically used as a rescue therapy for acute graft rejection. However, DSG has severe adverse effects that limits its use. Here, we examined the optimized therapeutic protocol for DSG using chronopharmacological profiles of it. METHODS:First, a dosing time-dependent difference in the toxicity and efficacy of DSG was determined using a heterotopic heart transplantation model. Second, chronokinetics of DSG were examined to reveal the mechanism for dosing time-dependent differences in the effect. RESULTS:In rats treated with DSG at the active period, bone marrow suppression and damage of small intestine were significantly severe. However, no significant difference was found in cardiac allograft survival and pharmacokinetics according to the timing of drug administration. CONCLUSIONS:The toxicity of DSG varied with the dosing time, whereas its efficacy did not. The chronopharmacological approach may provide merits for immunosuppressive therapy with DSG in clinical organ transplantation.
journal_name
Transplantationjournal_title
Transplantationauthors
Uchida H,Kobayashi E,Matsuda K,Mizuta K,Sugimoto K,Kawarasaki H,Hashizume K,Fujimura Adoi
10.1097/00007890-199905150-00012subject
Has Abstractpub_date
1999-05-15 00:00:00pages
1269-74issue
9eissn
0041-1337issn
1534-6080journal_volume
67pub_type
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