Optimal Pore Size of Honeycomb Polylactic Acid Films for In Vitro Cartilage Formation by Synovial Mesenchymal Stem Cells

Figure 1

Multipotency of synovial MSCs. Synovial MSCs were cultured in chondrogenic, adipogenic, and calcification induction media. A section of the cartilage pellet was stained with toluidine blue, and the culture dishes for adipogenesis and calcification were stained with oil red O and alizarin red, respectively.