Differential effects of natural flavonoids on growth and iodide content in a human NA+/I_symporter-transfecred follicular thyroid carcinoma cell line
| Autor: | Johannes A. Romijn, J.P. Schröder-van der Elst, D. van der Heide, Jan W. A. Smit |
|---|---|
| Přispěvatelé: | Other departments |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Sodium-iodide symporter
medicine.medical_specialty Endocrinology Diabetes and Metabolism Transfection Follicular cell transthyretin Iodine Radioisotopes sodium/iodide symporter chemistry.chemical_compound Endocrinology Thyroid peroxidase Cell Line Tumor Internal medicine Adenocarcinoma Follicular expression medicine Humans cancer rat RNA Messenger Thyroid Neoplasms Iodide transport Follicular thyroid cancer Flavonoids messenger-rna levels Symporters biology fungi food and beverages Biological Transport General Medicine Organification Iodides medicine.disease inhibition chemistry Human and Animal Physiology strategies transporter Apigenin biology.protein WIAS Fysiologie van Mens en Dier Myricetin Cell Division emd-21388 |
| Zdroj: | European Journal of Endocrinology 150 (2004) 4 European Journal of Endocrinology, 150(4), 557-564 European journal of endocrinology / European Federation of Endocrine Societies, 150(4), 557-564. BioScientifica Ltd. |
| ISSN: | 0804-4643 |
| Popis: | OBJECTIVE: Natural flavonoids (plant pigments) have been shown to inhibit thyroid peroxidase (TPO) in vitro and the growth of thyroid cancer cell lines. We have studied the role of flavonoids on the iodide transport and the growth of the human follicular thyroid cancer cell line (FTC133) which was stably transfected with the human Na(+)/I(-) symporter (hNIS). DESIGN AND METHODS: Cells were treated with flavonoids (0.5-50 microM) for 0, 2, 4 and 6 days; (125)I content and (125)I efflux of the cells and DNA content were measured. RESULTS: Cell growth was inhibited significantly at day 6 by most flavonoids. Eight out of ten flavonoids decreased the (125)I content of the cells at day 4. Morin did not influence the (125)I content of the cells and, surprisingly, myricetin increased the (125)I content of the cells. Kaempferol, apigenin, luteolin and F21388 decreased NIS mRNA expression after 15, 29 and 48 h; after 96 h NIS mRNA returned to normal. CONCLUSION: As TPO is not present in this cell line, the effects of the flavonoids on the iodide uptake are not related to organification. Myricetin was the only flavonoid studied that increased the influx and decreased the efflux of iodide. The effect of myricetin (decreased growth and increased retention of iodide) can be of therapeutic value in the radioiodide treatment of thyroid carcinoma. |
| Databáze: | OpenAIRE |
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