2.3 CCK-8 assay
Cell viability was detected by CCK8 kit (MedChemExpress, Shanghai,
China). Cells (3000 / well) were cultured in 96-well plates for 48
hours. After incubated with 10 μL CCK8 for 3-4 hours, the absorbance was
measured at 450 nm using GloMax® System (Promega, WI, USA) after16.