MTT colorimetric assay was performed to measure cell viability. First, 5000 cells of SW839 and Caki-2 were planted into 96-well plates. Transfections were performed in groups of experiments or stimulated with AZD6244 for 24 h. Cell medium was discarded and replaced with MTT reagent (Sigma-Aldrich) and serum-free medium in 96-well plates. Then, the 96-well plate was incubated for 3 to 4 h. A microplate reader (Massachusetts, USA) was used to measure the absorbance of each space.
Free full text: Click here