Figure 1

The typical immunohistochemical images of ANXA2 in adjacent non-cancer tissue and OSCC tissue. (A) The negative expression of ANXA2 in adjacent non-cancer tissue; (B) The positive expression of ANXA2 in OSCC tissue; (C) The strongly positive expression of ANXA2 in low differentiated OSCC tissue; (D) The weakly positive expression of ANXA2 in high differentiated OSCC tissue. The black arrowheads marked ANXA2 stain positive cells. Scale bar: 25 μm.