The tumor sizes of the BXPC-3-YY1-shRNA group were significantly larger than those of the control group, whereas the tumor sizes of the BXPC-3-YY1-shRNA + miR-548t-5p-mimics group were smaller than those of the BXPC-3-YY1-shRNA group (Fig. 4b). This evidence concerns the gene YY1 and neoplasm.