Leflunomide (75706-12-6) pyrimidine biosynthesis inhibitor DMARD (disease-modifying antirheumatic drug).1 Displays immunomodulatory activity inhibiting the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH)2; however the molecule directly responsible for DHODH is actually A77 1726, a metabolite of Leflunomide. Rescues mice from acetaminophen-induced liver injury.3
References/Citations:
1) Teschner et al. (2010), Leflunomide: a drug with a potential beyond rheumatology; Immunotherapy, 2 637
2) Davis et al. (1996), The immunosuppressive metabolite of leflunomide is a potent inhibitor of human dihydroorotate dehydrogenase; Biochemistry, 35 1270
3) Latchoumycandane et al. (2007), Mitochondrial protection by the JNK inhibitor leflunomide rescues mice from acetaminophen-induced liver injury; Hepatology, 45 412
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