JW 55 is an inhibitor of the PARP domain of tankyrases (TNKS) 1 and 2 (IC50s = 1.9 and 0.83 μM, respectively). By inhibiting TNKS1/2, JW 55 stabilizes Axin2 and increases degradation of β-catenin, inhibiting the β-catenin signaling pathway (IC50 = 470 nM). It has been shown to decrease canonical Wnt signaling in SW480 and HCT15 colon carcinoma cell lines and to reduce proliferation of SW480 cells in vitro.
JW-55 is an inhibitor of the PARP domain of tankyrase 1 and 2 (TNKS1/2). Activity results in stabilization of Axin2 and increased degradation of β-catenin. JW-55 inhibits the β-catenin signaling pathway. Also shown to decrease canonical Wnt signaling in SW480 and HCT-15 colon carcinoma cell lines. JW-55 reduces cell cycle progression and proliferation in SW480 cells in vitro.
[1] waaler j, machon o, tumova l, dinh h, korinek v, wilson sr, paulsen je, pedersen nm, eide tj, machonova o, gradl d, voronkov a, von kries jp, krauss s. a novel tankyrase inhibitor decreases canonical wnt signaling in colon carcinoma cells and reduces tumor growth in conditional apc mutant mice. cancer res. 2012;72(11):2822-32.