To comprehensively evaluate the immune cell profiles within the tumor microenvironment, we examined the proportions of dendritic cells (MHCHiCD11c+ DCs, CD86HiCD11c+ DCs and PD-L1HiCD11c+ DCs), T cells (CD4+ T cells and CD8+ T cells), effector/memory T cells (CD44+CD62L−CD8+ TEM cells), cytotoxic T/NK cells (IFNγ+CD8+ T cells, IFNγ+CD49b+ NK cells) and regulatory T cells (Foxp3+CD25+CD4+ Treg cells). The gene discussed is CD44; the disease is neoplasm.