Research Article

[Retracted] Exosomes Derived from Human Bone Marrow Mesenchymal Stem Cells Stimulated by Deferoxamine Accelerate Cutaneous Wound Healing by Promoting Angiogenesis

Figure 5

DFO-Exos deliver more miR-126 into the endothelial cells. (a) The levels of angiogenic miRNAs among Exos and DFO-Exos were determined by qRT-PCR. P < 0.01 versus Exos group. (b) Fluorescent microscopy showed the internalization of DIO-labeled Exos of DFO-Exos by HUVECS. Exosomes could be seen in the perinuclear region of HUVECs. Scale bar = 20 μm. (c) The level of miR-126 in HUVECs after DFO-Exos, Exos, or PBS treatment was evaluated. P < 0.001 versus control, ### P < 0.001 versus Exos group. (d) Western blotting analysis of PTEN, p-AKT, and AKT expression in HUVECs among three groups.