Then, other pan-cancer analysis revealed that the expression of IGFBP1 in tumor tissues was significantly higher than that in normal tissues in TCGA-GBM, TCGA-LUAD, TCGA-COAD, TCGA-STES, TCGA-HMSC, and TCGA-THCA (Figure 13A). The gene discussed is IGFBP1; the disease is glioblastoma.