Elevated Interleukin-13 Receptor Alpha 1 Expression in Tumor Cells Is Associated with Poor Prognosis in Patients with Invasive Breast Cancer

Background Interleukin (IL)-13 is an immunoregulatory, anti-inflammatory cytokine that is produced by numerous immune cells, and plasma membrane receptor for IL-13 (IL-13R) is known to be expressed in various human malignancies and in immune cells.