SOX9 and glioblastoma: Western blotting analyzing verified that SOX9 expressed significant higher in GBM tissues than normal brain tissues (Figure 1B and 1C).Then, the SOX9 expression level was also detected in U251 and U87 GBM cell lines and HEB, and the result showed that the level of SOX9 was higher in both U251 cells and U87 cells than in HEB cells (Figure 1D and 1E).On the whole, these data reflected that SOX9 was overexpressed in human GBM.