These results are in line with previous reports that showed enhanced colony-forming abilities of CD133+ and EpCAM+ HCC cells compared to their respective CD133− and EpCAM− counterparts, but contrast with the studies that displayed slower growth rate of CD13+ and CD24+ sorted cells than corresponding marker-negative fractions [8, 26-28]. The gene discussed is PROM1; the disease is hepatocellular carcinoma.