AMG 548 |
Catalog No.GC14899 |
AMG 548, un inhibiteur de p38α actif et sélectif par voie orale (Ki \u003d 0, 5 nM), est légèrement sélectif sur p38β (Ki \u003d 36 nM) et\u003e 1000 fois sélectif contre p38γ et p38δ.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 864249-60-5
Sample solution is provided at 25 µL, 10mM.
AMG 548 is a potent and selective inhibitor of p38α with IC50 values of 0.5, 3.6, 2600 and 4100 nM for p38α, p38β, p38γ and p38δ, respectively.
P38 mitogen-activated protein kinase (p38) is a serine/threonine kinase and is responsive to a variety of cellular stresses including inflammatory cytokines, osmotic shock, ultraviolet light, lipopolysaccharides (LPS) and growth factors. P38α kinase involved in the biosynthesis of TNFα and IL-1β at the transcriptional and translational level [1][2].
AMG 548 is a potent and selective p38α inhibitor. In the antagonistic enzyme fragment complementation (EFC) and β-catenin-driven luciferase (SuperTOPflash) reporter gene assays, AMG 548 inhibited Wnt/β-catenin signaling, which was due to cross-reactivity with another kinase. AMG 548 inhibited 17 kinases by more than 80%. In U2OS-EFC cells, AMG 548 inhibited CKIδ and CKIε, which played an important role in the activation of Wnt/b-catenin signaling. Also, the concentration of AMG 548 needed to inhibit CKIδ/ε in cells was closely approximate that required to inhibit Wnt/b-catenin signaling in the EFC and TOPflash assays, which suggested AMG 548 inhibited Wnt/b-catenin signaling mediated by the inhibition of CKIδ/ε [3].
References:
[1]. Dominguez C, Powers DA, Tamayo N. p38 MAP kinase inhibitors: many are made, but few are chosen. Curr Opin Drug Discov Devel, 2005, 8(4): 421-430.
[2]. Lee MR, Dominguez C. MAP kinase p38 inhibitors: clinical results and an intimate look at their interactions with p38alpha protein. Curr Med Chem, 2005, 12(25): 2979-2994.
[3]. Verkaar F, van der Doelen AA, Smits JF, et al. Inhibition of Wnt/β-catenin signaling by p38 MAP kinase inhibitors is explained by cross-reactivity with casein kinase Iδ/ɛ. Chem Biol, 2011, 18(4): 485-494.
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