CD4 and cancer: Classical BLCA markers were employed to identify cellular subtypes, which included Macrophages, Monocytes, Dendritic Cells (DCs), Endothelial Cells, B Cells, CD4 T Cells, CD8 T Cells, Epithelial Cells, myofibroblast Cancer-Associated Fibroblasts (mCAFs), and inflammatory Cancer-Associated Fibroblasts (iCAFs) (Figure 2A).