IL20RA (interleukin 20 receptor subunit alpha) serves as a critical component of cytokine receptor complexes that regulate inflammatory responses and cellular homeostasis. The IL20RA/IL20RB dimer functions as a receptor for IL-19, IL-20, and IL-24, while the IL20RA/IL10RB dimer acts as a receptor for IL-26 1. IL20RA primarily signals through the JAK1/STAT3 pathway to mediate diverse biological processes 23. In inflammatory bowel disease, IL20RA expression on intestinal epithelial cells promotes mucosal healing by suppressing interferon/STAT2 signaling and preventing necroptotic cell death 1. However, IL20RA exhibits context-dependent roles in cancer, where it can either promote or suppress tumor progression depending on the cancer type. In breast cancer, IL20RA enhances stemness properties and creates an immunosuppressive microenvironment by activating JAK1/STAT3/SOX2 signaling and increasing PD-L1 expression 2. Similarly, IL20RA promotes thyroid cancer progression by facilitating M2 macrophage polarization and reducing apoptosis 4. Conversely, in endometrial cancer, decreased IL20RA expression correlates with poor prognosis, suggesting a tumor-suppressive role 5. Genetic variations in IL20RA have been associated with psoriasis susceptibility, indicating its role in autoimmune skin conditions 6.