Fig. 7

MSGMSC-exos and ADSC-exos enhance cell proliferation and angiogenesis while suppressing inflammation. A Representative images of Ki67 immunohistochemical (scale bars = 100 μm) and quantification of the number of Ki67 positive cells in the wound area (n = 3). B Representative images of CD31 immunohistochemical staining (scale bars = 250 μm) and microvessel counts analysis in the wound bed (n = 3). C Representative images of α-SMA staining (scale bars = 250 μm) and mature vessels counts analysis (n = 3). D Representative images of immunofluorescence staining of macrophages and regulatory T cells in the wound bed (scale bars = 100 μm). E Quantitative analysis of the immunofluorescence staining (n = 3). *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001