The HeLa-Msi1 cells xenographed a tumor much faster (a palpable tumor took 12 days for HaLa-Msi1 cells and 18 days for HeLa-EGFP cells), and the tumor was larger (Fig. 2B; P<0.05) and heavier (Fig. 2C; P<0.05) than with the HeLa-EGFP control cells. Here, MSI1 is linked to neoplasm.