Fig. 3From: The fate of systemically administrated allogeneic mesenchymal stem cells in mouse femoral fracture healing In vivo tracking Luc-MSCs in the local injection group. a–e The intensity of the signal at the fracture site decreased gradually with time, and the signal lasted about 12–14 days following the injection. f Quantitative analysis of the photons at the fracture site also confirmed the above-mentioned phenomena. Luc-MSC Luciferase labeled mesenchymal stem cellBack to article page