As shown, compared with si-vector group, the expressions of circ_0000189 and ZEB2 mRNA in tumor tissues of si-circ_0000189 group were markedly downregulated, and miR-192-5p expression was observably increased, and the opposite results were found in the circ_0000189 overexpression group (Figures 9(c)–9(e)). This evidence concerns the gene ZEB2 and neoplasm.