Abstract:
:The sodium iodide symporter (NIS) mediates iodide uptake into thyrocytes and is the molecular basis of thyroid radioiodine therapy. We previously have shown that NIS gene transfer into the F98 rat gliomas facilitated tumor imaging and increased survival by radioiodine. In this study, we show that: (1) the therapeutic effectiveness of (131)I in prolonging the survival time of rats bearing F98/hNIS gliomas is dose- and treatment-time-dependent; (2) the number of remaining NIS-expressing tumor cells decreased greatly in RG2/hNIS gliomas post (131)I treatment and was inversely related to survival time; (3) 8 mCi each of (125)I/(131)I is as effective as 16 mCi (131)I alone, despite a smaller tumor absorbed dose; (4) (188)ReO(4), a potent beta(-) emitter, is more efficient than (131)I to enhance the survival of rats bearing F98/hNIS gliomas. These studies demonstrate the importance of radiopharmaceutical selection, dose, and timing of treatment to optimize the therapeutic effectiveness of NIS-targeted radionuclide therapy following gene transfer into gliomas.
journal_name
Gene Therjournal_title
Gene therapyauthors
Shen DH,Marsee DK,Schaap J,Yang W,Cho JY,Hinkle G,Nagaraja HN,Kloos RT,Barth RF,Jhiang SMdoi
10.1038/sj.gt.3302147keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
161-9issue
2eissn
0969-7128issn
1476-5462pii
3302147journal_volume
11pub_type
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