To further test our hypothesis that high MUC1 cells are more susceptible to the anti-tumor effects of Napabucasin, we tested the effect of the drug on a few more isogenic cells lines that express high and low/no MUC1 (MiaPaca2.MUC1 and Neo; C57.MG.MUC1 and Neo; Movcar.MUC1 and Neo; and KCM and KCKO) (Fig. 2D). This evidence concerns the gene MUC1 and neoplasm.