Fig. 6From: Adipose-derived mesenchymal stromal cell-derived exosomes promote tendon healing by activating both SMAD1/5/9 and SMAD2/3ADSC-Exos promoted TSC proliferation in vivo. a Cellular expression of CD146+ at week 2 and week 4 was evaluated by immunohistochemistry assay. b Ratio of CD146+ cells at week 2 (n = 6) and week 4 (n = 6). Bars, 50 μm. *vs control group; #vs GelMA group; n = 6, *P < 0.05, ****P < 0.0001, #P < 0.05, ####P < 0.0001Back to article page