Figure 6.
MiR-7-loaded TRAIL-MSCs specifically migrate to cancer cells. (A) The migration ability of MSCs with different modification toward cancer cell lines at 6 h as determined from transwell assay in vitro. HEK-293A cell was used as a control to better mimic the normal cell lines. Representative photomicrographs of stained filters showing migrated MSCs or modified MSCs. (B) Immunohistochemical (IHC) analysis of tumor tissues showing the migration ability of miR-7-loaded TRAIL-MSCs in vivo. Tumor tissues were harvested 16 h after tail vein injection using modified MSCs. **P < 0.01, ***P < 0.001; one-way ANOVA, mean ± SD, n = 3.