R428 (2μM) significantly interferes with mechanisms of migration and invasion of Axlpos melanoma cells at levels comparable to Axl knockdown[1]. R428 synergizes with cisplatin to enhance suppression of liver micrometastasis[2]. R428 (50 nM-1μM) causes a concentration-dependent inhibition of preadipocyte differentiation into mature adipocytes, as evidenced by reduced lipid uptake[3].
R428 (125 mg/kg, p.o.) significantly blocks MDA-MB-231-luc-D3H2LN
metastases development in two independent mouse models of breast cancer
dissemination, suppresses both tumor angiogenesis and vascular
endothelial growth factor (VEGF)-induced corneal neovascularization in
vivo[2].
R428 (75 mg/kg/day, 25 mg/kg twice daily, p.o.) makes mice keep on a
high-fat diet resulted in significantly reduced weight gain and
subcutaneous and gonadal fat mass[3].
Cells maintained for 24 hours in serum-free medium are harvested and transferred to the upper chamber (1.5×105 cells per well) of uncoated (migration) or matrigel-coated (invasion) 24-well chambers. RPMI medium containing 10% fetal bovine serum is added to the lower chamber. R428 (2 μM) or vehicle (DMSO, 0.25%) is added for 2 hours to cells before loading them in the upper chambers. Both the upper and lower chambers contain the drug or vehicle. Quantification of migrating/invading cells is obtained by measuring their fluorescent signals with a 480/520 nm filter set on an Infinite M1000 microplate reader 20 or 42 hours later, respectively.
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
