Development of reverse transcription-competitive polymerase chain reaction method to quantitate the expression levels of human sodium iodide symporter

Kwon Yul Ryu, Molly E. Senokozlieff, Patricia A. Smanik, Mariwil G. Wong, Allan E. Siperstein, Quan Yang Duh, Orlo H. Clark, Ernest L. Mazzaferri, Sissy M. Jhiang

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

The sodium iodide symporter (NIS) is the plasma membrane protein that mediates active iodide uptake into thyroid follicular cells. To investigate whether human NIS (hNIS) mRNA levels in papillary thyroid carcinomas (PCs) correlate with the ability of tumors to concentrate radioiodide, we developed a reverse transcription-competitive polymerase chain reaction (RT-cPCR) method to quantify the hNIS mRNA levels in thyroid tissues. We studied 7 normal thyroid tissues, 8 PCs, and 1 follicular adenoma, hNIS mRNA levels in PCs were generally lower than those found in normal thyroid tissues. The reduced radioiodide concentrating activity of PCs is due, at least in part, to the reduced expression and/or the decreased stability of hNIS mRNA.

Original languageEnglish
Pages (from-to)405-409
Number of pages5
JournalThyroid
Volume9
Issue number4
DOIs
StatePublished - Apr 1999

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