(R)-STU104 is a potent and orally active TAK1-MKK3 interaction inhibitor with IC50s of 0.58 μM and 4.0 μM for TNF-α and MKK3 phosphorylation. (R)-STU104 suppresses the TAK1/MKK3/p38/MnK1/MK2/elF4E signal pathways through binding with MKK3 and disrupting the TAK1 phosphorylating MKK3. (R)-STU104 can be used for researching ulcerative colitis.
(R)-STU104 attenuates phosphorylation levels of Mnk1, MK2, and elF4E, leading to the downregulation of TNF-α expression and production[1].
(R)-STU104 (1, 3 and 10 mg/kg; IG for 7 days) ameliorates the symptoms of DSS-induced experimental colitis in mice, and significantly inhibits inflammatory cytokine protein[1].Pharmacokinetic Parameters of (R)-STU104 in male C57 mice[1].
References:
[1]. Tang ML, et al. Discovery of First-in-Class TAK1-MKK3 Protein-Protein Interaction (PPI) Inhibitor (R)-STU104 for the Treatment of Ulcerative Colitis through Modulating TNF-α Production. J Med Chem. 2022 May 12;65(9):6690-6709.