PROM1 and cancer: Fig. 1 shows the OS and DFS in Dukes' stage B cancer according to the PCR status. The OS and DFS of those patients with CEA/CK/CD133 positivity were significantly worse than those who were negative for these markers (Fig. 1). In patients with Dukes' stage C cancer, the OS and DFS of the group with CEA/CK/CD133 positivity were significantly worse than those patients who were negative for these markers (Fig. 2).