CSF1R-IN-2 (compound 5) is an oral-active inhibitor of SRC, MET and c-FMS, with IC50 values of 0.12 nM, 0.14 nM and 0.76 nM for SRC, MET and c-FMS respectively.
CSF1R-IN-2 (compound 5) causes the suppression of MET autophosphorylation as well as the downstream STAT3, ERK and AKT phosphorylation at IC50 values of around 1-3 nM in SNU-5 and MKN-45 cell lines.
体内研究
CSF1R-IN-2 (compound 5: p.o., BID, 13 days) treatment results in an 85% tumor regression and no body weight loss is observed after 21 days treatment in mice.
CSF1R-IN-2 (compound 5: p.o., BID, 10 days) demonstrates the ability to inhibit tumor growth at 44% and 67% at the dose of 5 mg/kg, BID and 15 mg/kg, BID, respectively in SCID/Beige mice.
CSF1R-IN-2 (compound 5) inhibits MET activity in MKN-45 tumors following oral administration in mice.