AT-MSCs Selectively Migrate to and Reside in Tumors
(A) Characterization of AT-MSCs isolated from BALB/c mice by FACS. (B) CT26 tumors and different organs were collected 1 week after MSC injection (0.5 × 106 cells/mouse), and MSC-GFP was detected by immunofluorescent staining (GFP, green) in tissue sections. Nuclei were stained with DAPI (blue). Scale bars, 20 μm. (C) Numbers of CD45−GFP+ MSCs in whole tumors at indicated time points after MSC injection were measured (n = 3).