Interestingly, WNT6 expression is associated with shorter OS of GBM patients, independently of HOXA9 expression and all other putative prognostic variables in GBM patients from the TCGA (n = 293; P = 0.012), with HOXA9 also maintaining its clinical significance (P = 0.002; Table 2). This evidence concerns the gene WNT6 and glioblastoma.