Furthermore, we confirmed, using histochemical staining of SA-β-Gal expression on sections from embedded tumor tissues, that a high amount of senescent tumor cells were observed in tumor tissues obtained from the E0771-SALL1 group, but not from the control groups of E0771 tumor alone, E0771 cells transfected with mSALL1 or vector (Fig. 7d). This evidence concerns the gene SALL1 and neoplasm.