<i>In vitro</i> differentiation of immortalized mesenchymal cells.

<p>Immortalized mesenchymal cells differentiation into chondrocytes (see dark-blue color-chondrocytes), osteoclast (see red color-calcium deposit), and adipocytes (see lipid droplets in the cells) confirmed by staining with alcian blue, alizarin red and oil red, respectively. Scale bar ꞊꞊ 10 μm.</p>