Mycophenolic acid (24280-93-1) is an immunomodulator1 that blocks the biosynthesis of guanine nucleotides via inhibition of inosine 5'-monophosphate dehydrogenase. This in turn suppresses the production of proinflammatory cytokines, nitric oxide and LDH in macrophages2,3. Inhibits IL-2 -dependent T cell proliferation4.
1) Eugui et al. (1991), Lymphocyte-selective cyostatic and immunosuppressive effects of mycophenolic acid in vitro: role of deoxyguanosine nucleotide depletion; Scand. J. Immunol., 33 161
2) Jonsson et al. (2002), Mycophenolic acid inhibits inosine 5'-monophosphate dehydrogenase and suppresses production of pro-inflammatory cytokines, nitric oxide and LDH in macrophages; Cell. Immunol., 216 93
3) Allison et al. (1993), Mechanisms of action of mycophenolic acid; Ann. NY Acad. Sci., 696 63
4) Quemeneur et al. (2002), Mycophenolic acid inhibits IL-2-dependent T cell proliferation, but not IL-2-dependent survival and sensitization to apoptosis; J. Immunol., 169 2747