The percentage of Tem cells did not differ between the CD4 and CD8 groups in HD-PBMC, Normal-Ly, and NSCLC-PBMC, while the CD4+ Tem cells outnumbered the CD8+ Tem cells in NSCLC-Ly (p = 0.0049) (Fig. 1d). This evidence concerns the gene CD4 and non-small cell lung carcinoma.