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Zhang C, Yao J, Liu C, Yang K, Zhang W, Sun D, Gu W. The Role of Thyroid Hormone Synthesis Gene-Related miRNAs Profiling in Structural and Functional Changes of The Thyroid Gland Induced by Excess Iodine. Biol Trace Elem Res 2024; 202:580-596. [PMID: 37243879 DOI: 10.1007/s12011-023-03691-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 04/28/2023] [Indexed: 05/29/2023]
Abstract
At recent years, the impairment caused by iodine excess are paid more attention. However, there is still largely unknown about the exact mechanism induced by excessive iodine. MiRNAs have been found to act as biomarkers for a variety of diseases, whereas fewer studies focused on miRNAs related to a cluster of genes regulating thyroid hormone synthesis, such as NIS, Pendrin, TPO, MCT8, TSHR, TSHα, and TSHβ-related miRNAs in structural and functional changes of the thyroid gland induced by subchronic and chronic high iodine exposure. In the present study, one hundred and twenty 4-week-old female Wistar rats were randomly divided into control group (I50µg/L KIO3); HI 1 (I6000µg/L KIO3); HI 2 (I10000µg/L KIO3); and HI 3 (I50000µg/L KIO3), the exposure period was 3 months and 6 months, respectively. The iodine contents in the urine and blood, thyroid function, and pathological changes were determined. In addition, levels of thyroid hormone synthesis genes and the associated miRNAs profiling were detected. The results showed that subclinical hypothyroidism occurred in the high iodine groups with subchronic high iodine exposure, while 6-month exposure led to hypothyroidism in the I10000µg/L and I50000µg/L groups. Subchronic and chronic high iodine exposure caused mRNA and protein levels of NIS, TPO, and TSHR decreased significantly, and Pendrin expression increased significantly. In addition, MCT8 mRNA and protein levels are only remarkably decreased under the subchronic exposure. PCR results showed that levels of miR-200b-3p, miR-185-5p, miR-24-3p, miR-200a-3p, and miR-25-3p increased significantly exposed to high iodine for 3 months, while miR-675-5p, miR-883-5p, and miR-300-3p levels increased significantly under the exposure to high iodine for 6 months. In addition, miR-1839-3p level was markedly decreased exposed to high iodine for 3 and 6 months. Taken together, the miRNA profiling of genes regulating thyroid hormone synthesis remarkably altered from subclinical hypothyroidism to hypothyroidism induced by excess iodine exposure, and some miRNAs may play an important role in subclinical hypothyroidism or hypothyroidism through regulating NIS, Pendrin, TPO, MCT8, and TSHR providing promising targets to alleviate the impairment on the structure and function of thyroid gland.
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Affiliation(s)
- Chunyu Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &, Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Ministry of Health, 157# Baojian Road Harbin, 150081, Harbin, China
| | - Jinyin Yao
- Department of Public Health, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Chang Liu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &, Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Ministry of Health, 157# Baojian Road Harbin, 150081, Harbin, China
| | - Kunying Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &, Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Ministry of Health, 157# Baojian Road Harbin, 150081, Harbin, China
| | - Wei Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &, Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Ministry of Health, 157# Baojian Road Harbin, 150081, Harbin, China.
| | - Dianjun Sun
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Key Lab of Etiology and Epidemiology, Education Bureau of Heilongjiang Province &, Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Ministry of Health, 157# Baojian Road Harbin, 150081, Harbin, China.
| | - Weikuan Gu
- Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
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Martin JC, Pourcher T, Phan G, Guglielmi J, Crambes C, Caire-Maurisier F, Lebsir D, Cohen D, Rosique C, Jing L, Hichri M, Salleron L, Darcourt J, Souidi M, Benderitter M. Review of the PRIODAC project on thyroid protection from radioactive iodine by repeated iodine intake in individuals aged 12. Eur Thyroid J 2024; 13:ETJ-23-0139. [PMID: 38241789 PMCID: PMC10895330 DOI: 10.1530/etj-23-0139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 01/19/2024] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND Intake of potassium iodide (KI) reduces the accumulation of radioactive iodine in the thyroid gland in the event of possible contamination by radioactive iodine released from a nuclear facility. The WHO has stated the need for research for optimal timing, appropriate dosing regimen and safety for repetitive iodine thyroid blocking (ITB). The French PRIODAC project, addressed all these issues, involving prolonged or repeated releases of radioactive iodine. Preclinical studies established an effective dose through pharmacokinetic modeling, demonstrating the safety of repetitive KI treatment without toxicity. SUMMARY Recent preclinical studies have determined an optimal effective dose for repetitive administration, associated with pharmacokinetic modelling. The results show the safety and absence of toxicity of repetitive treatment with KI. Good laboratory practice level preclinical studies corresponding to individuals > 12 years have shown a safety margin established between animal doses without toxic effect. After approval from the French health authorities, the market authorization of the 2 tablets of KI-65mg/day was defined with a new dosing scheme of a daily repetitive intake of the treatment up to 7 days unless otherwise instructed by the competent authorities for all categories of population except pregnant women, and children under the age of 12 years. CONCLUSIONS This new marketed authorization resulting from scientific-based evidence obtained as part of the PRIODAC project may serve as an example to further harmonize the application of KI for repetitive ITB in situations of prolonged radioactive release at the European and International levels, under the umbrella of the WHO.
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Affiliation(s)
- Jean-Charles Martin
- J Martin, C2VN, Faculté Sciences Médicales et Paramédicales, Marseille, France
| | - Thierry Pourcher
- T Pourcher, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Commissariat a l'Energie Atomique et aux Energies alternatives (CEA), Nice, France
| | - Guillaume Phan
- G Phan, PSE-Santé, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Julien Guglielmi
- J Guglielmi, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Commissariat a l'Energie Atomique et aux Energies alternatives (CEA), Nice, France
| | - Caroline Crambes
- C Crambes, Direction des Approvisionnements en produits de Santé des Armées, Pharmacie Centrale des Armées (PCA), Fleury les Aubrais, France
| | - François Caire-Maurisier
- F Caire-Maurisier, Direction des Approvisionnements en produits de Santé des Armées, Pharmacie Centrale des Armées (PCA), Fleury les Aubrais, France
| | - Dalila Lebsir
- D Lebsir, PSE-Santé, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - David Cohen
- D Cohen, PSE-Santé, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Clément Rosique
- C Rosique, C2VN, Aix-Marseille Universite, Marseille, France
| | - Lun Jing
- L Jing, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Université Côte d'Azur, Nice, France
| | - Maha Hichri
- M Hichri, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Université Côte d'Azur, Nice, France
| | - Lisa Salleron
- L Salleron, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Université Côte d'Azur, Nice, France
| | - Jacques Darcourt
- J Darcourt, Transporter in Imaging and Radiotherapy in Oncology Laboratory (TIRO), Commissariat a l'Energie Atomique et aux Energies alternatives (CEA), Nice, France
| | - Maamar Souidi
- M Souidi, PSE-Santé, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Marc Benderitter
- M Benderitter, PSE-Santé, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
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Fjære E, Poulsen R, Duinker A, Liaset B, Hansen M, Madsen L, Myrmel LS. Iodine Bioavailability and Accumulation of Arsenic and Cadmium in Rats Fed Sugar Kelp ( Saccharina latissima). Foods 2022; 11:foods11243943. [PMID: 36553687 PMCID: PMC9777903 DOI: 10.3390/foods11243943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
Suboptimal iodine status is a prominent public health issue in several European coun-tries. Brown algae have a high iodine content that, upon intake, may exceed the recommended dietary intake level, but iodine bioavailability has been reported to be lower than from potassium iodide (KI) and highly depends on algae species. Further, potential negative effects from other components in algae, such as cadmium (Cd) and arsenic (As), have also been addressed. In this study, we observed a lower bioavailability of iodine from farmed sugar kelp (Saccharina latissima) than from KI in female Wistar IGS rats. Urinary iodine excretion was 94-95% in rats fed KI and 73-81% in rats fed sugar kelp, followed by increased faecal iodine levels in rats fed sugar kelp. No effects on body weight, feed efficiency, or plasma markers for liver or kidney damage were detected. The highest dose of iodine reduced plasma free thyroxine (fT4) and total T4 levels, but no significant effects on circulating levels of thyroid-stimulating hormone (TSH) and free triiodo-thyronine (fT3) were detected. Faeces and urine measurements indicate that 60-80% of total As and 93% of Cd ingested were excreted in rats fed 0.5 and 5% kelp. Liver metabolomic profiling demonstrates that a high inclusion of sugar kelp in the diet for 13 weeks of feeding modulates metabolites with potential antioxidant activity and phytosterols.
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Affiliation(s)
- Even Fjære
- Institute of Marine Research, NO-5817 Bergen, Norway
- Correspondence: ; Tel.: +47-55-23-85-00
| | - Rikke Poulsen
- Environmental Metabolomics Laboratory, Department of Environmental Science, Aarhus University, DK-4000 Roskilde, Denmark
| | - Arne Duinker
- Institute of Marine Research, NO-5817 Bergen, Norway
| | - Bjørn Liaset
- Institute of Marine Research, NO-5817 Bergen, Norway
| | - Martin Hansen
- Environmental Metabolomics Laboratory, Department of Environmental Science, Aarhus University, DK-4000 Roskilde, Denmark
| | - Lise Madsen
- Institute of Marine Research, NO-5817 Bergen, Norway
- Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, DK-2100 Copenhagen, Denmark
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Redox Homeostasis in Thyroid Cancer: Implications in Na +/I - Symporter (NIS) Regulation. Int J Mol Sci 2022; 23:ijms23116129. [PMID: 35682803 PMCID: PMC9181215 DOI: 10.3390/ijms23116129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/17/2022] [Accepted: 05/27/2022] [Indexed: 02/04/2023] Open
Abstract
Radioiodine therapy (RAI) is a standard and effective therapeutic approach for differentiated thyroid cancers (DTCs) based on the unique capacity for iodide uptake and accumulation of the thyroid gland through the Na+/I− symporter (NIS). However, around 5–15% of DTC patients may become refractory to radioiodine, which is associated with a worse prognosis. The loss of RAI avidity due to thyroid cancers is attributed to cell dedifferentiation, resulting in NIS repression by transcriptional and post-transcriptional mechanisms. Targeting the signaling pathways potentially involved in this process to induce de novo iodide uptake in refractory tumors is the rationale of “redifferentiation strategies”. Oxidative stress (OS) results from the imbalance between ROS production and depuration that favors a pro-oxidative environment, resulting from increased ROS production, decreased antioxidant defenses, or both. NIS expression and function are regulated by the cellular redox state in cancer and non-cancer contexts. In addition, OS has been implicated in thyroid tumorigenesis and thyroid cancer cell dedifferentiation. Here, we review the main aspects of redox homeostasis in thyrocytes and discuss potential ROS-dependent mechanisms involved in NIS repression in thyroid cancer.
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5
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Excess iodide-induced reactive oxygen species elicit iodide efflux via β-tubulin-associated ClC-3 in thyrocytes. Biochem J 2022; 479:629-640. [PMID: 35175311 DOI: 10.1042/bcj20210709] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/30/2022] [Accepted: 02/17/2022] [Indexed: 11/17/2022]
Abstract
Iodide (I-) is crucial to thyroid function, and its regulation in thyrocytes involves ion transporters and reactive oxygen species (ROS). However, the extent of 2Cl-/H+ exchanger (ClC-3) involvement in the iodide (I-) efflux from thyrocytes remains unclear. Therefore, we examined the effects of ClC-3 on I- efflux. ClC-3 expression was found to significantly alter the serum TT3 and TT4 concentrations in mice. We further found that excess I- stimulation affected ClC-3 expression, distribution, and I- efflux in FRTL-5 cells. Immunofluorescence analyses indicated that ClC-3 mainly accumulated in the cell membrane and co-localized with β-tubulins after 24 h of excess I- treatment, and that this process depended on ROS production. Thus, ClC-3 may be involved in I- efflux at the apical pole of thyrocytes via excess I--induced ROS production and β-tubulin polymerization. Our results reveal novel insights into the role of ClC-3 in I- transport and thyroid function.
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Gaouaoui-Azouaou H, L'Homme B, Benadjaoud MA, Sache-Aloui A, Granger R, Voyer F, Lestaevel P, Gruel G, Caire-Maurisier F, Crambes C, Dare-Doyen S, Benderitter M, Souidi M. Protection and safety of a repeated dosage of KI for iodine thyroid blocking during pregnancy. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2022; 42:011512. [PMID: 34700314 DOI: 10.1088/1361-6498/ac336e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
In case of nuclear power plant accidents resulting in the release of radioactive iodine (131I) in large amounts, a single intake of stable iodine is recommended in order to prevent131I fixation to the thyroid gland. However, in situations of prolonged exposure to131I (e.g. Fukushima-Daiichi natural and nuclear disaster), repetitive administration of iodine may be necessary to ensure adequate protection, with acceptable safety in vulnerable populations including pregnant women. Here we conducted toxicological studies on adult rats progeny following prolonged exposure to potassium iodide (KI)in utero. Pregnant Wistar rats were treated with 1 mg kg d-1KI or saline water for 2 or 4 d either between gestation days gestational day (GD) GD 9-12, or GD13-16. Plasma samples from the progeny were tested 30 d post-weaning for clinical biochemistry, thyroid hormones, and anti-thyroid antibody levels. Thyroid and brain were collected for gene expression analysis. The hormonal status was similar for the mothers in all experimental conditions. In the offspring, while thyroid-stimulating hormone and anti-thyroid peroxidase (anti-TPO) antibody levels were similar in all groups, a significant increase of FT3 and FT4 levels was observed in GD9-GD10 and in GD13-GD14 animals treated for 2 d, respectively. In addition, FT4 levels were mildly decreased in 4 d treated GD13-16 individuals. Moreover, a significant decrease in the expression level of thyroid genes involved in iodide metabolism, TPO and apical iodide transporter, was observed in GD13-GD14 animals treated for 2 d. We conclude that repeated KI administration for 2-4 d during gestation did not induce strong thyroid toxicity.
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Affiliation(s)
- Hayat Gaouaoui-Azouaou
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Bruno L'Homme
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Mohamed Amine Benadjaoud
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Amandine Sache-Aloui
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Romain Granger
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Frederic Voyer
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Philippe Lestaevel
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Gaëtan Gruel
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - François Caire-Maurisier
- Pharmacie Centrale des Armées, Direction des Approvisionnement en produits de santé des armées, 45404 Fleury-les Aubrais, France
| | - Caroline Crambes
- Pharmacie Centrale des Armées, Direction des Approvisionnement en produits de santé des armées, 45404 Fleury-les Aubrais, France
| | - Stephanie Dare-Doyen
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Marc Benderitter
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de radioprotection et de sûreté Nucléaire (IRSN), PSE-SANTE, 92290 Fontenay-aux-Roses, France
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Jing L, Zhang Q. Intrathyroidal feedforward and feedback network regulating thyroid hormone synthesis and secretion. Front Endocrinol (Lausanne) 2022; 13:992883. [PMID: 36187113 PMCID: PMC9519864 DOI: 10.3389/fendo.2022.992883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
Thyroid hormones (THs), including T4 and T3, are produced and released by the thyroid gland under the stimulation of thyroid-stimulating hormone (TSH). The homeostasis of THs is regulated via the coordination of the hypothalamic-pituitary-thyroid axis, plasma binding proteins, and local metabolism in tissues. TH synthesis and secretion in the thyrocytes-containing thyroid follicles are exquisitely regulated by an elaborate molecular network comprising enzymes, transporters, signal transduction machineries, and transcription factors. In this article, we synthesized the relevant literature, organized and dissected the complex intrathyroidal regulatory network into structures amenable to functional interpretation and systems-level modeling. Multiple intertwined feedforward and feedback motifs were identified and described, centering around the transcriptional and posttranslational regulations involved in TH synthesis and secretion, including those underpinning the Wolff-Chaikoff and Plummer effects and thyroglobulin-mediated feedback regulation. A more thorough characterization of the intrathyroidal network from a systems biology perspective, including its topology, constituent network motifs, and nonlinear quantitative properties, can help us to better understand and predict the thyroidal dynamics in response to physiological signals, therapeutic interventions, and environmental disruptions.
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Affiliation(s)
- Li Jing
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing, China
- *Correspondence: Li Jing, ; Qiang Zhang,
| | - Qiang Zhang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, United States
- *Correspondence: Li Jing, ; Qiang Zhang,
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8
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Nagayama Y. Commentary: Excessive Iodine Promotes Pyroptosis of Thyroid Follicular Epithelial Cells in Hashimoto's Thyroiditis Through the ROS-NF-κB-NLRP3 Pathway. Front Endocrinol (Lausanne) 2020; 11:581. [PMID: 32982973 PMCID: PMC7484478 DOI: 10.3389/fendo.2020.00581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/16/2020] [Indexed: 12/27/2022] Open
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9
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Molecular basis of hearing loss associated with enlarged vestibular aqueduct. JOURNAL OF BIO-X RESEARCH 2019. [DOI: 10.1097/jbr.0000000000000032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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10
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Cohen DPA, Lebsir D, Benderitter M, Souidi M. A systems biology approach to propose a new mechanism of regulation of repetitive prophylaxis of stable iodide on sodium/iodide symporter (NIS). Biochimie 2019; 162:208-215. [PMID: 31071356 DOI: 10.1016/j.biochi.2019.04.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/29/2019] [Indexed: 01/27/2023]
Abstract
Our group showed that repetitive dose of potassium iodide (KI) for eight days offers an efficient protection for exposure to repeated radioactive emissions without adverse effects on adult rats. However, differential expression of genes implicated in Wolff-Chaikoff effect was observed. To understand the Wolff-Chaikoff regulation and its molecular constituents during repetitive administration of KI, a biochemical reaction network was constructed as a "geographical" map of the thyrocyte depicting iodide and thyroid hormone synthesis. Path analysis of the network has been performed to investigate the presence of a regulatory circuit of the node iodide to the node "nis transcription". NIS is responsible for the uptake of KI and plays an important role in the Wolff-Chaikoff effect. The map is a source for the most updated information about iodide and thyroid hormone metabolism. Based on this map, we propose a hypothesis that shows a putative mechanism behind NIS regulation and KI uptake.
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Affiliation(s)
- David P A Cohen
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, 92262, Fontenay-aux-Roses, France
| | - Dalila Lebsir
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SANTE/SESANE/LRTOX, 92262, Fontenay-aux-Roses, France
| | - Marc Benderitter
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-SANTE/SERAMED, 92262, Fontenay-aux-Roses, France
| | - Maâmar Souidi
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PRP-SANTE/SERAMED, 92262, Fontenay-aux-Roses, France.
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Iodine Status in the Colombian Population and the Impact of Universal Salt Iodization: A Double-Edged Sword? J Nutr Metab 2019; 2019:6239243. [PMID: 31061736 PMCID: PMC6466914 DOI: 10.1155/2019/6239243] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 03/18/2019] [Indexed: 01/14/2023] Open
Abstract
Iodine deficiency and iodine excess have severe consequences on human health and have been associated with the presence of goiter, hypothyroidism, hyperthyroidism, thyroid cancer, thyroid nodules and thyroid autoimmunity, poor mental health, and impaired intellectual development. Universal salt iodization programs have been considered one of the most cost-effective interventions for the prevention of iodine deficiency-associated disorders, as evidenced over time since the implementation of such programs. However, these efforts have also led to an excessive consumption of iodine in certain geographical regions, due to salt overuse. Consequently, the amount of iodine derived from salt intake exceeds the established limits required for achieving the right balance between salt consumption and health benefits and leads to undesirable health effects. In Colombia, the recommendations and standards for the production and commercialization of iodized salt are fully complied with. Nevertheless, there is a remarkable rate of iodine excess among the country's population, which, at least hypothetically, represents a higher risk for developing functional and structural disorders of the thyroid gland. This review analyzes universal salt iodization programs worldwide, particularly their impact on the thyroid gland and the results of the studies conducted in Colombia following the implementation of such strategy.
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De la Vieja A, Santisteban P. Role of iodide metabolism in physiology and cancer. Endocr Relat Cancer 2018; 25:R225-R245. [PMID: 29437784 DOI: 10.1530/erc-17-0515] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 12/28/2022]
Abstract
Iodide (I-) metabolism is crucial for the synthesis of thyroid hormones (THs) in the thyroid and the subsequent action of these hormones in the organism. I- is principally transported by the sodium iodide symporter (NIS) and by the anion exchanger PENDRIN, and recent studies have demonstrated the direct participation of new transporters including anoctamin 1 (ANO1), cystic fibrosis transmembrane conductance regulator (CFTR) and sodium multivitamin transporter (SMVT). Several of these transporters have been found expressed in various tissues, implicating them in I- recycling. New research supports the exciting idea that I- participates as a protective antioxidant and can be oxidized to hypoiodite, a potent oxidant involved in the host defense against microorganisms. This was possibly the original role of I- in biological systems, before the appearance of TH in evolution. I- per se participates in its own regulation, and new evidence indicates that it may be antineoplastic, anti-proliferative and cytotoxic in human cancer. Alterations in the expression of I- transporters are associated with tumor development in a cancer-type-dependent manner and, accordingly, NIS, CFTR and ANO1 have been proposed as tumor markers. Radioactive iodide has been the mainstay adjuvant treatment for thyroid cancer for the last seven decades by virtue of its active transport by NIS. The rapid advancement of techniques that detect radioisotopes, in particular I-, has made NIS a preferred target-specific theranostic agent.
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Affiliation(s)
- Antonio De la Vieja
- Tumor Endocrine Unit, Chronic Disease Program (UFIEC), Instituto de Salud Carlos III, Madrid, Spain
- CiberOnc, Instituto de Salud Carlos III, Madrid, Spain
| | - Pilar Santisteban
- CiberOnc, Instituto de Salud Carlos III, Madrid, Spain
- Department of Physiopathology of Endocrine a Nervous System, Instituto de Investigaciones Biomédicas 'Alberto Sols', Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain
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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] [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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14
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Thyroidal response following iodine excess for cardiac catheterisation and intervention in early infancy. Int J Cardiol 2016; 223:1014-1018. [DOI: 10.1016/j.ijcard.2016.08.292] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 08/18/2016] [Indexed: 11/23/2022]
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15
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Huang H, Chen L, Liang B, Cai H, Cai Q, Shi Y. Upregulation of TSHR, TTF-1, and PAX8 in Nodular Goiter Is Associated with Iodine Deficiency in the Follicular Lumen. Int J Endocrinol 2016; 2016:2492450. [PMID: 27525008 PMCID: PMC4976194 DOI: 10.1155/2016/2492450] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/26/2016] [Indexed: 01/08/2023] Open
Abstract
Objective. It has been testified that iodine regulates thyroid function by controlling thyroid-restricted genes expression and is closely related to diffuse goiter and thyroid dysfunction. However, the effects of follicular lumen iodine, the main form of iodine reserve in the body, on thyroid-restricted genes in nodular goiter are poorly understood. In this study, correlations between follicular lumen iodine and the expressions of thyroid stimulating hormone receptor (TSHR), its transcription factors TTF-1, and PAX8 in nodular goiter were investigated. Patients. In this study, 30 resection specimens clinically histopathologically confirmed to have nodular goiter and 30 normal thyroid specimens from adjacent tissues of nodular goiter are used. Measurement. Western blot immunohistochemistry was performed to assay TSHR, TTF-1, and PAX8 in thyrocytes of nodular goiter as well as in extranodular normal thyroid tissues. Meanwhile, follicular lumen iodine of both nodular goiter and extranodular normal thyroid tissues was detected as well. Results. The TSHR, TTF-1, and PAX8 in nodular goiter were significantly higher than those in the controls. The iodine content in nodular goiter was significantly lower than those in control tissues. Conclusion. Upregulation of TSHR, TTF-1, and PAX8 is associated with low follicular lumen iodine content in nodular goiter.
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Affiliation(s)
- Huibin Huang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
- *Huibin Huang:
| | - Lijun Chen
- Postgraduate School, The Second Clinical Medical College of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Bo Liang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Huiyao Cai
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Qingyan Cai
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yaxiong Shi
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
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