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Annu Rev Physiol. 2017 Feb 10;79:261-289. doi: 10.1146/annurev-physiol-022516-034125.

The Sodium/Iodide Symporter (NIS): Molecular Physiology and Preclinical and Clinical Applications.

Author information

1
Department of Cellular and Molecular Physiology, Yale School of Medicine, New Haven, Connecticut 06510; email: nancy.carrasco@yale.edu.
2
Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.

Abstract

Active iodide (I-) transport in both the thyroid and some extrathyroidal tissues is mediated by the Na+/I- symporter (NIS). In the thyroid, NIS-mediated I- uptake plays a pivotal role in thyroid hormone (TH) biosynthesis. THs are key during embryonic and postembryonic development and critical for cell metabolism at all stages of life. The molecular characterization of NIS in 1996 and the use of radioactive I- isotopes have led to significant advances in the diagnosis and treatment of thyroid cancer and provide the molecular basis for studies aimed at extending the use of radioiodide treatment in extrathyroidal malignancies. This review focuses on the most recent findings on I- homeostasis and I- transport deficiency-causing NIS mutations, as well as current knowledge of the structure/function properties of NIS and NIS regulatory mechanisms. We also discuss employing NIS as a reporter gene using viral vectors and stem cells in imaging, diagnostic, and therapeutic procedures.

KEYWORDS:

NIS mutations; gene transfer studies; imaging and radioiodide therapy; sodium/iodide symporter; structure/function; thyroid hormones

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