SLC5A5 and medulloblastoma: In a medulloblastoma xenotransplantation study in athymic nude mice treatment with an ‘armed’ measles virus with a human thyroidal sodium iodide symporter (MV-NIS; 2 × 105 pfu) led to a prolonged survival time, which could further be increased by simultaneous application of radioiodine (131I; 37MBq) [54] (Figure 2C).