Figure 6.

hBMMSC-Exo promote tumor growth in vivo. (a) Representative example of BALB/c-nu mice after transplantation with K562 cells and hBMMSC-Exo by subcutaneous injection. (b) Gross observation of the isolated tumors on day 40 after implantation. (c) Tumor incidence. hBMMSC-Exo significantly increased the tumor incidence. (d) Tumor growth curves. Tumor growth was faster in group K562 cells mixed with hBMMSC-Exo. (e) Representative micrographs of TUNEL staining. The data were expressed as the mean ± SD of the three independent experiments. ^∗p < 0.05 Student's t-test.