The results of immunofluorescence (IF) assays (Figure 1I) and immunohistochemical (IHC) assays of serial sections (Figure S1D, Supporting Information) suggested that the expression levels of GFAT1 and VEGFA were both higher in tumor cells and ECs in Tu than those in NC, consistent with the richer vascular distribution (marked by CD31) in Tu, especially in MIBC. This evidence concerns the gene PECAM1 and neoplasm.