These cell types include angiogenic vascular cells (endothelial cells and pericytes), infiltrating immune cells (CD4 and CD8 positive T cells, T regulatory cells, B cells, natural killer T (NK/T) cells, macrophages, inflammatory monocytes, neutrophils, mast cells, platelets), and cancer‐associated fibroblasts (mesenchymal stem cells, activated myofibroblasts, and adipocytes) 29. Here, CD4 is linked to cancer.