The results (Figure 6A‐C) suggested that, compared with the blank and NC groups, the final tumour weight and the growth rate in mice in the miR‐218 agomir and si‐GREM1 groups was lower, while growth rate and final volume were higher in the miR‐218 antagomir group (all P < 0.05). This evidence concerns the gene GREM1 and neoplasm.