PDGFB and ovarian serous cystadenocarcinoma: To evaluate which extracellular molecules among those predicted to be activated from the IPA results are potentially able to trigger signaling pathways for elevating FBXL7 expression, we performed a Pearson’s correlation test to estimate the relationships among FBXL7, CD44, HGF, CSF2, PDGFA, PDGFB, PDGFC, and PDGFD transcripts in patients with ovarian serous cystadenocarcinoma using the TCGA database.