COL6A1 and glioblastoma: The results showed that SHOX2 expression was positively associated with CDKN2C, COL6A1, COL6A2, DCHS1, MAPK7 and RSRC1 in LGG (Fig. 3C) and positively associated with CDKN2C, COL6A1, DCHS1 and RSRC1 in GBM (Fig. 3D) via TIMER2.