CD4 and cancer: The results reveal infiltration levels of CD4+ T cells, cancer-associated fibroblast (CAF), progenitors of lymphoid, progenitors of myeloid, endothelial cell (Endo), eosinophil (Eos), hematopoietic stem cell (HSC), T cell follicular helper (Tfh), T cell gamma delta (γ/δT), nature killer T cell (NKT), T cell regulatory (Tregs), myeloid-derived suppressor cell (MDSC), neutrophils, monocytes, B cells, dendritic cells, macrophages, mast cells, NK cells, and CD8+ T cells in pan-cancer (Figure 4).