CD4 and bladder transitional cell carcinoma: Furthermore, we analyzed the correlation between the expression level of COL10A1 and gene markers of immune cells, including B cell, T cell (general), CD4+ and CD8+ T cell, monocyte, mast cell, TAM, M1, and M2 macrophage, neutrophil, NK cell, Dendritic cell, Th1, Th2, Tfh, Th17, Treg and immune checkpoints in BLCA, using normal tissues as the control (Table 2).