Up-Regulated Expression of WNT5a Increases Inflammation and Oxidative Stress via PI3K/AKT/NF-κB Signaling in the Granulosa Cells of PCOS Patients

WNT5a acts as a proinflammatory factor in human ovarian GCs. The up-regulated expression of WNT5a in PCOS increases inflammation and oxidative stress predominantly via the phosphatidylinositol 3-kinase/AKT/NF-κB signaling pathway. The proinflammatory cytokines induced might further enhance WNT5a expression via NF-κB-dependent regulation, indicating a novel regulatory system for chronic inflammation in PCOS.