PTGDR and ovarian cancer: According to all the prediction and validation, as shown in Figure 8D, two mRNA-miRNA-lncRNA regulatory networks (TACC3-hsa-miR-425-5p-FUT8-AS1 and CXCR4-hsa-miR-146a-5p- LINC00665/LINC01535) including 2 mRNA (TACC3 and CXCR4), 2 miRNAs (hsa-miR-425-5p, hsa-miR-146a-5p) and 3 lncRNAs (FUT8-AS1, LINC00665 and LINC01535) were eventually constructed and visualized by the Cytoscape software, and each component in the ceRNA network was significantly correlated with the poor prognosis of patient s with ovarian cancer.