SLC5A5 and gastric cancer: In particular, due to its ability to selectively invade tumor cells, the therapeutic efficacy of a novel genetically engineered VACV carrying the human sodium iodide symporter (hNIS) gene, GLV-1 h153, was investigated in GC along with its potential utility for imaging with (99 m)Tc pertechnetate scintigraphy and 124I positron emission tomography (PET) (110).