SOX9 and chondrosarcoma: Our results showed downregulation of SOX9 efficiently inhibited the cell migration (P < 0.05; Figure 4A–4B, Figure 4E–4F, and Supplementary Figure 4A), cell invasion (P < 0.05; Figure 4C–4D, Supplementary Figure 4B) and cell proliferation of chondrosarcoma cells (P < 0.05; Figure 4G, Supplementary Figure 4C).