Figure 2. The circRNA-miRNA-mRNA interaction network in the PAAD tissues. The circRNA-miRNA-mRNA interaction network consists of 4 circRNAs (hsa_circ_0007367, hsa_circ_0003958, hsa_circ_0043278 and hsa-circ-0049783), 3 miRNAs (hsa-mir-324-3p, hsa-miR-214 and hsa-miR-494), and 149 mRNAs. The diamond nodes indicate the circRNAs; rectangle nodes indicate the miRNAs; the elliptical nodes indicate the mRNAs. The edges indicate a possible connection between the circRNAs, miRNAs, and the mRNAs. The red and blue color indicates high and low expression of the ceRNAs in the PAAD tissues, respectively.