Notes: IWP-O1 is an inhibitor of porcupine (PORCN), an enzyme that catalyzes palmitoylation of Wnt proteins.{67367} It inhibits Wnt signaling in L-Wnt-STF cells (IC50 = 80 pM in a reporter assay) and phosphorylation of Dishevelled-2 (Dvl2) and Dvl3 in HeLa cells when used at a concentration of 1 µM. IWP-O1 (1 µM) enhances the cytotoxicity of the glycolysis inhibitors 2-deoxyglucose (2-DG) and lonidamine (Item No. 14640) in CAL 27 oral squamous cell carcinoma (OSCC) cells.{67368}