Published in:
Open Access
01-12-2014 | Review
Sodium iodide symporter (NIS) in extrathyroidal malignancies: focus on breast and urological cancer
Authors:
Salvatore Micali, Stefania Bulotta, Cinzia Puppin, Angelo Territo, Michele Navarra, Giampaolo Bianchi, Giuseppe Damante, Sebastiano Filetti, Diego Russo
Published in:
BMC Cancer
|
Issue 1/2014
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Abstract
Background
Expression and function of sodium iodide symporter (NIS) is requisite for efficient iodide transport in thyrocytes, and its presence in cancer cells allows the use of radioiodine as a diagnostic and therapeutic tool in thyroid neoplasia. Discovery of NIS expression in extrathyroidal tissues, including transformed cells, has opened a novel field of research regarding NIS-expressing extrathyroidal neoplasia. Indeed, expression of NIS may be used as a biomarker for diagnostic, prognostic, and therapeutic purposes. Moreover, stimulation of endogenous NIS expression may permit the radioiodine treatment of extrathyroidal lesions by concentrating this radioisotope.
Results
This review describes recent findings in NIS research in extrathyroidal malignancies, focusing on breast and urological cancer, emphasizing the most relevant developments that may have clinical impact.
Conclusions
Given the recent progress in the study of NIS regulation as molecular basis for new therapeutic approaches in extrathyroidal cancers, particular attention is given to studies regarding the relationship between NIS and clinical-pathological aspects of the tumors and the regulation of NIS expression in the experimental models.