Mycophenolic acid (MPA), known as an inhibitor of inosine monophosphate dehydrogenase (IMPDH), was found to inhibit the differentiation of 3T3-L1 pre-adipocytes into mature adipocytes. Although the effect of MPA was attributed to inhibition of IMPDH, we uncovered a hidden biological property of MPA as an agonist of peroxisome proliferator activated receptor gamma (PPARgamma).
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