6,7-Dimethoxy-3-phenylquinoxaline White solid. PROTECT FROM LIGHT. Similar to but more potent than AG 1295 (Cat. No. 658550). Inhibits PDGF receptor kinase and blocks signaling of human PDGF a-receptors (IC50 = 1.0 µM) and b-receptors (IC50 = 800 nM) as well as of the related stem cell factor receptor c-kit (80% inhibition at 5 µM). Affects neither the binding of PDGF-BB to the PDGF-b receptor nor the receptor dimerization. Has no effect on autophosphorylation of the vascular endothelial growth factor receptor KDR or on DNA synthesis induced by vascular endothelial growth factor in porcine aortic endothelial cells. Also reverses the transformed phenotype of sis-transfected NIH/3T3 cells but has no effect on src-transformed NIH 3T3 cells or on the activity of the kinase p60c-src (F257) immunoprecipitated from these cells. Potently inhibits autophosphorylation in Flt3/Tel-BaF3 and Flt3/Itd-BaF3 cells with an IC50 of 300 nM and ~1 µM, respectively. Purity: ≥98% by HPLC. CAS 146535-11-7. Ref.: Tse, KF., et al. 2002. Leukemia 16, 2027. Tse, KF., et al. 2001. Leukemia 15, 1001. Strutz, F., et al. 2001. Kidney Int. 59, 579. Kovalenko, M., et al. 1997. Biochemistry 36, 6260. Kovalenko, M., et al. 1994. Cancer Res. 54, 6106. |
