Summary of EV proteins identified from the eight cell lines, including 5 PDAC cell lines, 2 CAF cell lines, and HPDE. A, The number of proteins identified in each of the cell lines with 1% false discovery rate (FDR). B, Overlap of protein identification between the PDAC cell group, CAF group and HPDE. C, Overlap of protein identification between the two CAF cell lines. D) Overlap of protein identification among the five PDAC cell lines.