Fig. 2From: Bone marrow mesenchymal stem cells do not enhance intra-synovial tendon healing despite engraftment and homing to niches within the synoviumPlastic adherent spindle-shaped cells from bone marrow aspirates (a) formed confluent monolayers by 7Â days (b). Adipogenic Oil Red O-stained MSCs after 14Â days of in-vitro differentiation (c). Osteogenic differentiation stained with Alizarin Red S staining (d). Chondrogenic differentiation with H&E (e), alcian blue (f) and safranin-O (g) stainingBack to article page