Fig. 5From: Polycaprolactone nanofiber scaffold enhances the osteogenic differentiation potency of various human tissue-derived mesenchymal stem cellsWnt/β-catenin and Smad3 signaling pathways were activated in human MSCs grown on PCL nanofiber scaffolds. a Western blotting was used to detect the expression of β-catenin in UC-MSCs, BM-MSCs, and AD-MSCs. b, c Western blotting was used to detect the expression of β-catenin, Smad3, and p-Smad3 in BM-MSCs on PCL nanofiber scaffolds. AD-MSC adipose tissue-derived MSCs, BM-MSC human bone marrow-derived MSCs, PCL polycaprolactone, UC-MSC umbilical cord-derived MSCsBack to article page