Fig. 1From: circ-Iqsec1 induces bone marrow-derived mesenchymal stem cell (BMSC) osteogenic differentiation through the miR-187-3p/Satb2 signaling pathwayIsolation and identification of differentiation and classical phenotypes of BMSCs. A Phase-contrast images showing BMSC morphology. Scale bars: 20 μm. B–I Surface antigen expression in mouse BMSCs at the 3rd passage. Cells stained positive for mesenchymal stem cell markers CD44, CD29, CD90, CD54, and integrin-β. Endothelial markers CD31 and vWF were used as negative markers. ISO was applied as control. Scale bars: 20 μm. J, K The BMSC differentiation potential was detected through alizarin red (J) and Oil Red O (K) staining. Scale bars: 50 μmBack to article page