IL-15 and IL15R expression by olmesartan medoxomil treated Caco-2 cells. Caco-2 cells were cultured for 5–7 days and then treated with 30 micromolar olmesartan (A), 30 micromolar Losartan, (B), or 30 micromolar Telmisartan for four hours (C). Confocal laser microscope orthogonal images of anti IL-15 staining are depicted, with anti-IL15 (green) and DAPI (blue). Magnification 40×. In addition, Caco-2 cells were cultured for 5–7 days, treated for an additional 60 hours with 30 micromolar olmesartan medoxomil (D) or losartan (E) and then stained for IL-15R (green).