Cell experiment:

Cells (1000-3000 cells/100 μL/well) are seeded on 96-well culture plates with various concentrations of Golvatinib and cultured for 3 days. Then, 10 μL of WST-8 reagent is added to each well, and absorbance is measured at 450 nm compared with a reference measurement at 660 nm using a MTP-500 microplate reader[1].

Animal experiment:

Mice: Nude mice bearing MKN45, Hs746T, SNU-5, or EBC-1 tumors are administered Golvatinib (25, 50, 100, 200 mg/kg) or vehicle only as a control, once a day. Tumor volume is measured using calipers on the indicated days (0-15 days)[1].

Golvatinib is an inhibitor of c-Met and VEGFR-2 tyrosine kinase with IC50 values of 14nM and 16nM, respectively [1].

The small molecule compound, golvatinib, is a dual inhibitor of both c-Met and VEGFR-2. It is developed as a therapeutic reagent with more potent antitumor activity. Golvatinib inhibits the autophosphorylation of c-Met in MKN45 cells and inhibits the phosphorylation of VEGFR-2 in HUVECs with IC50 values of 14nM and 16nM, respectively. Golvatinib also inhibits the growth of various tumor cells including MKN45, EBC-1, Hs746T and SNU-5. Besides that, golvatinib effectively suppresses the growth induced by HGF or VEGF with IC50 values of 17nM and 84nM [1].

In mice models bearing xenograft tumor cell lines including MKN45, Hs746T, SNU-5 and EBC-1, treatment of golvatinib significantly inhibits the tumor growth. In mice xenograft model with VEGF-overexpressed human pancreatic cancer cell line KP-1 /VEGF, a single administration of E7050 reduces the VEGFR-2 phosphorylation and subsequently inhibits tumor growth through inhibiting VEGF /VEGFR-2 mediated tumor angiogenesis [1].

References:
[1] Nakagawa T, Tohyama O, Yamaguchi A, et al. E7050: A dual c-Met and VEGFR-2 tyrosine kinase inhibitor promotes tumor regression and prolongs survival in mouse xenograft models. Cancer science, 2010, 101(1): 210-215.