Figure 5From: Human umbilical cord mesenchymal stromal cells exhibit immature nucleus pulposus cell phenotype in a laminin-rich pseudo-three-dimensional culture systemDifferentiated human umbilical cord mesenchymal stromal cells expressed nucleus pulposus cell markers. Immunostaining for (A) the laminin (LM) α5 chain and receptors, (B) CD239, (C) integrin subunit α3, (D) integrin subunit α6 and (E) integrin subunitβ4 in differentiated human umbilical cord mesenchymal stromal cells cultured for 21 days (green = target; red = cell nuclei counterstained with propidium iodide; bar = 50 μm). IGF-1, insulin-like growth factor-1; TGF, transforming growth factor.Back to article page