Colorectal cancer cells were seeded in 96‐well plates. Adherent cells were incubated with various concentrations of compounds. HCT116 cells (3 × 103 per well) and Lovo cells (3 × 103 per well) were treated for 1 ‐ 5 days, two patient‐derived cell lines (6 × 103 per well) were treated for 72 h. Cell viability was measured according to the instruction of an MTS assay kit (Promega). The half inhibition concentration (IC50) value was calculated using GraphPad Prism 8 software.
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