Construction of a CXCL12-KDEL Fusion Gene to Inhibit Head and Neck Squamous Cell Carcinoma Metastasis by Intracellular Sequestration of CXCR4

Figure 8

Western blot electrophoretogram of E-tag protein. 1: E-tag protein (52 kd) expression can be seen in Tb cells in the E-tag labeled CXCL12-KDEL transfection group, while no E-tag protein expression was observed in the remaining 5 groups; 2: red vector pIRES2 EGFP transfection group; 3: normal Tb nontransfection cells; 4–6: the culture supernatant of three kinds of cells.