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Effect of MSC‐EXO on PAEC invasion, migration and protein expression. A, Wound healing assay and Transwell assay in PAEC. B, Comparative analysis of invasion and migration ability. C, Protein expression and comparative of BMPR2, P/T‐Smad1/5/8 and P/T‐Smad2/3. D, Protein expression of TGF‐β1, BMP4 and BMP9. *P < 0.05 vs Normal group; # P < 0.05 vs hypoxia group; △ P < 0.05 vs MSC‐EXO group. Red bar = 100 µm
