Fig.10

Validation of the expression of the seven signature genes in LUAD. A The mRNA expression profile of the seven genes in tumor tissues from the TCGA database and normal lung tissues from the TCGA and GTEx databases. B-H The protein expression of the seven genes in LUAD tumor tissues and normal tissues. The data were obtained from the HPA database. I–M Further verification of the mRNA expression levels of five signature genes in human LUAD cancer cell lines and human normal lung epithelial cell line by qRT-PCR analysis. ns, not significant, *P < 0.05, **P < 0.01, ***P < 0.001