GNF-7 is Bcr-Abl WT and Bcr-Abl T315I inhibitor with IC50 of 133 nM and 61 nM, respectively.

BCR-ABL:61 nM, BCR-ABL (WT):133 nM

GNF-7 shows potent antiproliferative activity against wild-type and mutant Bcr-Abl Ba/F3 cells with IC50 less than 11 nM. In human colon cancer cells (Colo205 and SW620), GNF-7 also displays excellent growth inhibitory activity with IC50 of 5 nM and 1 nM, respectively. [1] GNF-7, potently and selectively inhibits NRAS-dependent acute myelogenous leukemia and acute lymphoblastic leukemia cells through combined inhibition of ACK1/AKT and GCK. [2]

GNF-7 exhibits excellent pharmacokinetic parameters in mice. In a bioluminescent xenograft mouse model using a transformed T315I-Bcr-Abl-Ba/F3 cell line, GNF-7 (10 mg/kg, p.o.) effectively inhibits tumor growth. [1] In NSG mice bearing human mutant NRAS-expressing MOLT-3-luc+ tumors, GNF-7 (15 mg/kg, p.o.) significantly decreases disease burden, prolongs overall survival, and causes strong suppression of phospho-AKT and phospho-RPS6. [2]

For kinase assays, purified CDC5L(295-795)-His6 is mixed with [γ-32P]ATP, COS-7 cell extract, and incubated in 100 μL 20 mM HEPES, pH 7.5, 50 mM NaCl, 2 mM MnCl2, 10 mM MgCl2, 0.5% NP-40, 0.5 mM PMSF, 5 mM benzamidine hydrochloride, 5 mM NaF, 1 mM NaVO3 and the specific inhibitor at 30°C for 10 minutes. Cell extract as a source of kinase activity is prepared from subconfluent, serum-stimulated COS-7 cells lysed in 20 mM HEPES-NaOH, pH 7.5, 50 mM NaCl, 1% Triton X-100, 10% glycerol, protease and phosphotase inhibitors. Phosphorylated proteins are separated by electrophoresis in 15% polyacrylamide-SDS gels. Specific inhibitors included 20 μM staurosporine, 10 μM genistein, 1 μM CVT-313, 10 μM Rp-MB-cAMPS and 50 μM PD98059[1].