The expression of ANXA7, MMP-9, and CXCL12 detected by immunohistochemical assay. (A) Immunostaining results of ANXA7, MMP-9, and CXCL12 in transplanted tumors of mice in each group, using a magnification of 40 × 10, (B) IOD values of positive results in each group. The error bar represents the SD (n = 3). **P < 0.01.