Finally, we found that the plasma cell, CD8 T cell, resting CD4 memory T cell, follicular helper T cell, Treg, monocyte, M0 macrophage, M2 macrophage, activated dendritic cell, and neutrophil levels differed between the two TS-related gene clusters (Fig. 3F), indicating that these immune cells played an important role in TS progression in BLCA. Here, CD4 is linked to bladder transitional cell carcinoma.