Using TaqMan GPCR arrays, we assessed GPCR expression of pancreatic cancer (PDAC) cell lines (AsPC-1 and MiaPaCa-2), patient-derived primary PDAC cells (identified as 34E and 79E in Figure 5A), and a normal pancreatic ductal epithelial (PDEC) cell line. Here, FZD4 is linked to pancreatic neoplasm.