Although the CUX1 mRNA expression in GBM was positively correlated with the prognosis as analyzed using TCGA_GBM data, no supportive evidence could establish the role of CUX1 mRNA as a prognostic indicator in GBM or glioma after combining CGGA and TCGA data (Supplementary Fig. 2). The gene discussed is CUX1; the disease is central nervous system cancer.