CD8A and neoplasm: Important signatures of a variety of immune cells include CD8+ T cell, T cell (general), B cell, Monocyte, tumor-associated macrophage (TAM), M1 Macrophage, M2, Macrophage, Neutrophils, Natural killer cell, Dendritic cell, Th1, Th2, Tfh, Th17, Treg, T cell exhaustion, were illustrated.