Meanwhile, FCGR1A is positively or even strongly correlated with immune cells and various immune cell marker genes in four cancer types, such as CD2, CD3E, CD86, CD163, VSIG4, MS4A4A, HLA-DPB1, HLA-DRA, HLA-DPA1, ITGAX, and TIM-3 in T cell, monocyte, M2 macrophage, DC, TH1, and T cell exhaustion. Here, CD2 is linked to cancer.