CD4 and cancer: According to the xCELL database, patients in the Cluster 2 had higher abundance levels of memory CD4 T cells, naive CD8 T cells, common lymphoid progenitor, myeloid dendritic cell, cancer-associated fibroblast, macrophage, macrophage M1, neutrophil, Th2 CD 4 T cell, and activated myeloid dendritic cell, and lower abundance levels of central memory CD4 T cells, common myeloid progenitor, endothelial cell, plasma B cell, and Th1 CD 4 T cell when compared with patients in the Cluster 1.