5Z-7-Oxozeaenol is a natural anti-protozoan compound from fungal origin, acting as a potent irreversible and selective inhibitor of TAK1 and VEGF-R2, with IC50 s of 8 nM and 52 nM, respectively.
In Vitro, 5Z-7-Oxozeaenol is a potent irreversible and selective inhibitor of transforming growth factor (TGF)-β-activated kinase 1 (TAK1, IC50, 8.1 nM), less active on MEK1 (IC50, 411 nM). 5Z-7-Oxozeaenol prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase[1]. 5Z-7-Oxozeaenol is also an inhibitor of VEGF-R2, with an IC50 of 52 nM. 5Z-7-Oxozeaenol has inhibitory activity against VEGF-R3, FLT3, PDGFR-β, B-RAF VE and SRC, with IC50s of 110, 170, 340, 6300 and 6600 nM, respectively[2]. 5Z-7-Oxozeaenol inhibits JNK/p38 paythway, but it is not a direct inhibitor and is signal specific. 5Z-7-Oxozeaenol suppresses the PMA-induced AP-1 activity almost to the basal level in the KT cells, but has no effects on IL-1-induced NF-kB activity in the KK cells[3].
References:
[1]. Ninomiya-Tsuji J, et al. A resorcylic acid lactone, 5Z-7-oxozeaenol, prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase. J Biol Chem. 2003 May 16;278(20):18485-90.
[2]. Dakas PY, et al. Modular synthesis of radicicol A and related resorcylic acid lactones, potent kinase inhibitors. Angew Chem Int Ed Engl. 2007;46(36):6899-902.
[3]. Takehana K, et al. A radicicol-related macrocyclic nonaketide compound, antibiotic LL-Z1640-2, inhibits the JNK/p38 pathways in signal-specific manner. Biochem Biophys Res Commun. 1999 Apr 2;257(1):19-23.
In Vitro, 5Z-7-Oxozeaenol is a potent irreversible and selective inhibitor of transforming growth factor (TGF)-β-activated kinase 1 (TAK1, IC50, 8.1 nM), less active on MEK1 (IC50, 411 nM). 5Z-7-Oxozeaenol prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase[1]. 5Z-7-Oxozeaenol is also an inhibitor of VEGF-R2, with an IC50 of 52 nM. 5Z-7-Oxozeaenol has inhibitory activity against VEGF-R3, FLT3, PDGFR-β, B-RAF VE and SRC, with IC50s of 110, 170, 340, 6300 and 6600 nM, respectively[2]. 5Z-7-Oxozeaenol inhibits JNK/p38 paythway, but it is not a direct inhibitor and is signal specific. 5Z-7-Oxozeaenol suppresses the PMA-induced AP-1 activity almost to the basal level in the KT cells, but has no effects on IL-1-induced NF-kB activity in the KK cells[3].
References:
[1]. Ninomiya-Tsuji J, et al. A resorcylic acid lactone, 5Z-7-oxozeaenol, prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase. J Biol Chem. 2003 May 16;278(20):18485-90.
[2]. Dakas PY, et al. Modular synthesis of radicicol A and related resorcylic acid lactones, potent kinase inhibitors. Angew Chem Int Ed Engl. 2007;46(36):6899-902.
[3]. Takehana K, et al. A radicicol-related macrocyclic nonaketide compound, antibiotic LL-Z1640-2, inhibits the JNK/p38 pathways in signal-specific manner. Biochem Biophys Res Commun. 1999 Apr 2;257(1):19-23.