Figure 2.

Survival-related differentially expressed ferroptosis genes. (A) Heat map of the differential expression of the ferroptosis genes in TCGA-LUAD and TCGA-LUSC datasets. N, normal; T, tumor. The expression intensity was based on the analysis of the gene expression level using R software. (B) Volcano plot of the gene expression data. Red dots denote upregulation, green dots show downregulation, and black dots denote non-DEGs. P < 0.05 was considered as significant. (C) Forest plot of the univariate Cox regression analysis showing the survival-related DEGs in the TCGA-LUAD and TCGA-LUSC datasets. DEGs, differentially expressed genes; TCGA, The Cancer Genome Atlas; LUAD, lung adenocarcinoma; LUSC, lung squamous cell carcinoma.