CD4 and neoplasm: B cells, CD4+ T cells, macrophages, and dendritic cells were positively correlated with CD320; PSMD14 was positively correlated with B cells, CD8+ T cells, CD4+ T cells, neutrophils, and dendritic cells; NTF3 was negatively related to tumor purity and positively associated with CD4+ T cells and neutrophils, and SORT1 is positively associated with CD4+ T cells, macrophages, and neutrophils.