HIF-1α and GLUT1 mRNA expressions obtained from the Genomic Data Commons The Cancer Genome Atlas (GDC TCGA) Lung Adenocarcinoma (LUAD) and GDC TCGA Lung Squamous Cell Carcinoma (LUSC) studies were analyzed to determine the survival rate and average survival time (ast) between high- and low-expression groups (Figure 3). Here, HIF1A is linked to squamous cell lung carcinoma.