Figure 6From: Identification of subpopulations with characteristics of mesenchymal progenitor cells from human osteoarthritic cartilage using triple staining for cell surface markersPolymerase chain reaction analysis of osteogenesis of culture expanded and progenitor marker sorted osteoarthritic cartilage derived chondrocytes. AP, alkaline phosphatase; BSP, bone sialoprotein; COL1, collagen type I; GAPDH, glyceraldehyde-3-phosphate dehydrogenase; M, 100 base-pair size marker; OCN, osteocalcin.Back to article page