ZEB1 and neoplasm: Indeed upon overexpression of ZEB1, OCM1-ZEB1-grafted tumors became visible 5 days earlier than OCM1-vector control (Fig. 5A,B), while knockdown of ZEB1 significantly reduced the growth of OCM1-ZEB1sh-grafted tumors though C918-ZEB1sh-grafted tumors only manifested a slight decrease in tumor size as compared to vector controls (Fig. 5C, Supplemental Table 5).