The Caucasian LUAD tumor tissues contained fewer resting CD4+ T memory cells, resting NK cells, monocytes, M0 macrophages, M2 macrophages, resting mast cells, and neutrophils, while the Asian LUAD tumor tissues contained fewer CD8+ T cells, resting NK cells, monocytes, activated dendritic cells and eosinophils. Here, CD4 is linked to neoplasm.