NCIt definition : The morpholinoethyl ester of mycophenolic acid (MPA). As an immunosuppressive agent
in vivo, the active metabolite mycophenolate reversibly inhibits inosine 5'-monophosphate
dehydrogenase (IMPDH), an enzyme involved in the de novo synthesis of guanine nucleotides,
thereby retarding T-cell and B-cell proliferation. MPA displays high lymphocyte specificity
and cytotoxicity because lymphocyte metabolism is highly dependent on both salvage
and de novo synthesis of guanine nucleotides. (NCI04);