AXL and ovarian carcinoma: We next treated ARK1 uterine serous cancer cells and OVCAR8 ovarian cancer cells with buffer, AXL siRNA (siAXL) alone, p5RHH-scrambled siRNA nanoparticles (p5RHH-siControl), or p5RHH-siAXL siRNA nanoparticles and evaluated protein expression after 72 hours.