In contrast, M2 macrophages are an unfavorable factor in terms of promoting tumor growth, and we observed negative correlations between M2 macrophages and CD8+ T cells (−0.37); M0 macrophages and CD4 memory activated T cells (−0.37); and M0 macrophages and CD8+ T cells (−0.37). This evidence concerns the gene CD8A and neoplasm.