Figure 1. Analysis of the expression of SPP1 based on TCGA and GEO databases. (A) A Venn diagram of 241 immune- and prognosis-related differentially expressed genes. (B) According to the TCGA database differential expression of SPP1 in LUAD and LUSC versus normal tissues. (C) Differential expression of SPP1 based on GEO database GSE101929 (Normal=34, Tumor=32), GSE19188 (Normal=65, Tumor=91) and GSE116959 (Normal=11, Tumor=57). **p<0.01, ***p<0.001.