Figure 3From: Induction of superficial zone protein (SZP)/lubricin/PRG 4 in muscle-derived mesenchymal stem/progenitor cells by transforming growth factor-β1 and bone morphogenetic protein-7Immunolocalization of the SZP in the rat muscle-derived mesenchymal stem/progenitor cells (MDMSCs). Control (A), 3 ng/ml of TGF-β1 (B), and 300 ng/ml BMP-7 (C), treated for three days.Back to article page