Fig. 2From: Exosomes derived from mesenchymal stem cells enhance radiotherapy-induced cell death in tumor and metastatic tumor fociBiodistribution of MSC on tumor-bearing mice injected intratumorally or intraperitoneally. a Representative photomicrographs of A375 xenografts 24 after BrdU-labelled MSCs (brown) intratumoral injection. b Biodistribution of luciferase-labelled MSCs injected intraperitoneally on tumor-bearing NSG mice after receiving radiotherapy (right flank). The images were obtained at 0, 1, 2 and 5 days after injecting (intraperitoneally) 10 luciferase-expressing MSCs. Luciferin was injected 5 min before the images are obtainedBack to article page