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Rossich LE, Thomasz L, Nicola JP, Nazar M, Salvarredi LA, Pisarev M, Masini-Repiso AM, Christophe-Hobertus C, Christophe D, Juvenal GJ. Effects of 2-iodohexadecanal in the physiology of thyroid cells. Mol Cell Endocrinol 2016; 437:292-301. [PMID: 27568464 DOI: 10.1016/j.mce.2016.08.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 08/22/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
Abstract
Iodide has direct effects on thyroid function. Several iodinated lipids are biosynthesized by the thyroid and they were postulated as intermediaries in the action of iodide. Among them, 2-iodohexadecanal (2-IHDA) has been identified and proposed to play a role in thyroid autoregulation. The aim of this study was to compare the effect of iodide and 2-IHDA on thyroid cell physiology. For this purpose, FRTL-5 thyroid cells were incubated with the two compounds during 24 or 48 h and several thyroid parameters were evaluated such as: iodide uptake, intracellular calcium and H2O2 levels. To further explore the molecular mechanism involved in 2-IHDA action, transcript and protein levels of genes involved in thyroid hormone biosynthesis, as well as the transcriptional expression of these genes were evaluated in the presence of iodide and 2-IHDA. The results obtained indicate that 2-IHDA reproduces the action of excess iodide on the "Wolff-Chaikoff" effect as well as on thyroid specific genes transcription supporting its role in thyroid autoregulation.
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Affiliation(s)
- Luciano E Rossich
- Nuclear Biochemistry Division, Argentine National Atomic Energy Commission, CONICET, Buenos Aires, Argentina
| | - Lisa Thomasz
- Nuclear Biochemistry Division, Argentine National Atomic Energy Commission, CONICET, Buenos Aires, Argentina
| | - Juan P Nicola
- Department of Clinical Biochemistry, School of Chemical Sciences, National University of Cordoba, CONICET, Buenos Aires, Argentina
| | - Magali Nazar
- Department of Clinical Biochemistry, School of Chemical Sciences, National University of Cordoba, CONICET, Buenos Aires, Argentina
| | - Leonardo A Salvarredi
- Nuclear Biochemistry Division, Argentine National Atomic Energy Commission, CONICET, Buenos Aires, Argentina
| | - Mario Pisarev
- Nuclear Biochemistry Division, Argentine National Atomic Energy Commission, CONICET, Buenos Aires, Argentina; Department of Human Biochemistry, University of Buenos Aires School of Medicine, CONICET, Buenos Aires, Argentina
| | - Ana M Masini-Repiso
- Department of Clinical Biochemistry, School of Chemical Sciences, National University of Cordoba, CONICET, Buenos Aires, Argentina
| | | | | | - Guillermo J Juvenal
- Nuclear Biochemistry Division, Argentine National Atomic Energy Commission, CONICET, Buenos Aires, Argentina.
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