SLC5A5 and glioblastoma: In another study, Opyrchal et al. [87] reported effective [123I]NaI or [99mTc]pertechnetate gamma camera or microSPECT/CT imaging of s.c. and orthotopic murine GBM xenografts following intratumoral infection with the measles virus encoding NIS (MV-NIS) to induce NIS expression in brain tumor tissue.