The tumor inhibition rate was not significantly correlated with the expression of metastasis-related factors α-V(r = −0.411, P >0.05) and BSP (r = −0.521, P >0.05) factors, but it exhibited a significant negative correlation with the expression of metastasis-related factor OPN (r = −0.766, P <0.05) (Figure 6). This evidence concerns the gene SPP1 and neoplasm.