For example, RNA expression data were used to analyze the infiltration of B cells, T cells, and macrophages, as well as CD4+ T cells, CD8+ T cells, neutrophils, macrophages, and DCs, multiple immune cell subsets, and multiple immune molecules.32, 33, 34 In fact, it is particularly important to comprehensively know the immune infiltration status on cancer patients in order to choose the correct immunotherapy strategy individually. Here, CD4 is linked to cancer.