Q J Med 2000; 93: 15-20
© 2000 Association of Physicians
Reviews |
The evolving role of mycophenolate mofetil in renal transplantation
From the Division of Medicine, Imperial College School of Medicine, London, UK
Dr A.N. Warrens, Renal Unit, Imperial College School of Medicine, Hammersmith Hospital, L Block, Du Cane Road, London W12 0HS. e-mail: a.warrens@ic.ac.uk
| Pharmacology |
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Mycophenolate mofetil (MMF) is an ester prodrug with higher bioavailability than the active agent, mycophenolic acid (MPA).1 MPA inhibits inosine monophosphate (IMP) dehydrogenase, an enzyme that facilitates the conversion of IMP to xanthosine monophosphate, a precursor of guanine nucleotides. This is an important step in the de novo pathway of purine nucleotide synthesis on which lymphocytes primarily depend, unlike neutrophils, for example.2 In addition, different isoforms of IMP dehydrogenase exist, and MPA is not only almost five times more potent in inhibiting the type II isoform, that is associated with stimulated rather than resting lymphocytes,3 but is also, to some extent, cell type specific.4 Thus, on theoretical grounds, MMF represents a significant improvement on the antimetabolite azathioprine the use of which is well-established in organ transplantation.
| In vitro and animal studies |
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MMF is effective in prolonging the survival of mouse and rat cardiac allografts,5,6 showing an additive effect with cyclosporin, brequinar or tacrolimus.69 It can
| Clinical experience in renal transplantation |
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Prophylaxis
Rescue therapy
Maintenance therapy
| Significance of the effect of MMF on the incidence of acute rejection |
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| Adverse effects |
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| Conclusions |
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| References |
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