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Lu YL, Chen ST, Ho TY, Chan WH, Wong RJ, Hsueh C, Lin SF. Primary lung cancer with radioiodine avidity: A thyroid cancer cohort study. World J Clin Cases 2021; 9:71-80. [PMID: 33511173 PMCID: PMC7809679 DOI: 10.12998/wjcc.v9.i1.71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/30/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A proportion of lung cancers show sodium/iodide symporter (NIS) expression. Lung cancers with NIS expression may uptake radioiodine (RAI) and show RAI-avid lesions on RAI scan for differentiated thyroid cancer (DTC) surveillance.
AIM To investigate the possibility of RAI uptake by lung cancer in a cohort with thyroid cancer.
METHODS RAI-avid lung cancers were analyzed using a prospectively maintained database of patients with thyroid cancer who were registered at a medical center between December 1, 1976 and May 28, 2018. NIS expression in lung cancer was assessed using immunohistochemical staining.
RESULTS Of the 5000 patients with thyroid cancer from the studied dataset, 4602 had DTC. During follow-up, 33 patients developed primary lung cancer. Of these patients, nine received an iodine-131 (131I) scan within 1 year before the diagnosis of lung cancer. One of these nine lung cancers was RAI-avid. NIS expression was evaluated, and three of the eight available lung cancers revealed NIS expression. The proportions of lung cancer cells with NIS expression were 60%, 15%, and 10%. The RAI-avid lung cancer had the highest level of expression (60%). The RAI-avid lung cancer had a spiculated border upon single-photon emission computed tomography/computed tomography, which led to an accurate diagnosis.
CONCLUSION A proportion of lung cancer demonstrates NIS expression and is RAI-avid. Clinicians should be aware of this possibility in the interpretation of RAI scintigraphy.
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Affiliation(s)
- Yu-Ling Lu
- Department of Internal Medicine, New Taipei Municipal TuCheng Hospital, New Taipei City 236, Taiwan
- Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Szu-Tah Chen
- Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Tsung-Ying Ho
- Department of Nuclear Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Wen-Hui Chan
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Institute for Radiological Research, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Richard J Wong
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, United States
| | - Chuen Hsueh
- Department of Pathology, Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Shu-Fu Lin
- Department of Internal Medicine, New Taipei Municipal TuCheng Hospital, New Taipei City 236, Taiwan
- Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
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Riley A, Green V, Cheah R, McKenzie G, Karsai L, England J, Greenman J. A novel microfluidic device capable of maintaining functional thyroid carcinoma specimens ex vivo provides a new drug screening platform. BMC Cancer 2019; 19:259. [PMID: 30902086 PMCID: PMC6429713 DOI: 10.1186/s12885-019-5465-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/13/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Though the management of malignancies has improved vastly in recent years, many treatment options lack the desired efficacy and fail to adequately augment patient morbidity and mortality. It is increasingly clear that patient response to therapy is unique to each individual, necessitating personalised, or 'precision' medical care. This demand extends to thyroid cancer; ~ 10% patients fail to respond to radioiodine treatment due to loss of phenotypic differentiation, exposing the patient to unnecessary ionising radiation, as well as delaying treatment with alternative therapies. METHODS Human thyroid tissue (n = 23, malignant and benign) was live-sliced (5 mm diameter × 350-500 μm thickness) then analysed or incorporated into a microfluidic culture device for 96 h (37 °C). Successful maintenance of tissue was verified by histological (H&E), flow cytometric propidium iodide or trypan blue uptake, immunohistochemical (Ki67 detection/ BrdU incorporation) and functional analysis (thyroxine [T4] output) in addition to analysis of culture effluent for the cell death markers lactate dehydrogenase (LDH) and dead-cell protease (DCP). Apoptosis was investigated by Terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL). Differentiation was assessed by evaluation of thyroid transcription factor (TTF1) and sodium iodide symporter (NIS) expression (western blotting). RESULTS Maintenance of gross tissue architecture was observed. Analysis of dissociated primary thyroid cells using flow cytometry both prior to and post culture demonstrated no significant change in the proportion of viable cells. LDH and DCP release from on-chip thyroid tissue indicated that after an initial raised level of release, signifying cellular damage, detectable levels dropped markedly. A significant increase in apoptosis (p < 0.01) was observed after tissue was perfused with etoposide and JNK inhibitor, but not in control tissue incubated for the same time period. No significant difference in Ki-67 positivity or TTF1/NIS expression was detected between fresh and post-culture thyroid tissue samples, moreover BrdU positive nuclei indicated on-chip cellular proliferation. Cultured thyroid explants were functionally viable as determined by production of T4 throughout the culture period. CONCLUSIONS The described microfluidic platform can maintain the viability of thyroid tissue slices ex vivo for a minimum of four days, providing a platform for the assessment of thyroid tissue radioiodine sensitivity/adjuvant therapies in real time.
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Affiliation(s)
- Andrew Riley
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Victoria Green
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Ramsah Cheah
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Gordon McKenzie
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
- Hull York Medical School, University of Hull, Kingston upon Hull, HU6 7RX UK
| | - Laszlo Karsai
- Hull and East Yorkshire Hospitals NHS Trust, Kingston upon Hull, HU16 5JQ UK
| | - James England
- Hull and East Yorkshire Hospitals NHS Trust, Kingston upon Hull, HU16 5JQ UK
| | - John Greenman
- Faculty of Health Sciences, University of Hull, Kingston upon Hull, HU6 7RX UK
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3
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Son SH, Gangadaran P, Ahn BC. A novel strategy of transferring NIS protein to cells using extracellular vesicles leads to increase in iodine uptake and cytotoxicity. Int J Nanomedicine 2019; 14:1779-1787. [PMID: 30880979 PMCID: PMC6413815 DOI: 10.2147/ijn.s189738] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background This study was designed to explore a novel approach for transferring NIS protein to cells using extracellular vesicle (EV) and enhancing iodine avidity in hepatocellular carcinoma (HCC) cells. Methods We transfected the HCC cells (Huh7) with NIS gene, designated as Huh7/NIS, and isolated the EVs from them. Presence of NIS protein in EVs and EV-mediated transport of NIS protein to recipient Huh7 cells were tested using Western blotting. We also examined radioiodine uptake in Huh7 cells treated with EV-Huh7/NIS. Results Successful transfer of NIS protein into Huh7 cells was confirmed by WB and microscopy. EVs showed high levels of NIS protein in them. Treatment of Huh7 cells with EV-Huh7/NIS increased the NIS protein level and enhanced 125I uptake in recipient Huh7 cells. In addition, EV-huh7/NIS pre-treatment enhanced the cytotoxicity of 131I therapy against Huh7 cells by inducing increased DNA damage/increased γH2A.X foci formation. Conclusion This is the first-of-its-kind demonstration of successful transportation of the NIS protein to cells via EVs, which increased radioiodine uptake. This approach can revert radioiodine-resistant cancers into radioiodine-sensitive cancers.
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Affiliation(s)
- Seung Hyun Son
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea, .,Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea,
| | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea, .,Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea,
| | - Byeong-Cheol Ahn
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea, .,Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea,
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4
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Feng F, Yehia L, Ni Y, Chang YS, Jhiang SM, Eng C. A Nonpump Function of Sodium Iodide Symporter in Thyroid Cancer via Cross-talk with PTEN Signaling. Cancer Res 2018; 78:6121-6133. [PMID: 30217930 DOI: 10.1158/0008-5472.can-18-1954] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/15/2018] [Accepted: 09/11/2018] [Indexed: 01/21/2023]
Abstract
The sodium iodide symporter (NIS) is a classical iodide pump typically localized within the cell plasma membrane in thyroid cells, where NIS expression is believed to ensure success of mainstay radioiodide therapy in thyroid cancers. Although radioiodide uptake is generally reduced in thyroid cancer tissue, intracellular nonmembranous NIS has been reported to increase, suggesting that NIS serves a pump-independent function. Thyroid cancer is one of the major component cancers of Cowden syndrome, a subset of which is caused by germline mutations in PTEN In this study, we explored the noncanonical tumorigenic role of NIS in thyroid cancer cells in relation to PTEN signaling. PTEN knockdown in thyroid cancer cell lines stabilized intracellular NIS protein by promoting an interaction with NIS-LARG (leukemia-associated RhoA guanine exchange factor). Increased protein levels of cytoplasmic NIS enhanced RhoA activation and resulted in a promigration tumorigenic phenotype. Inhibition of NIS glycosylation through activation of the PI3K/AKT/mTOR signaling pathway contributed to mislocalization of NIS in the cytoplasm, facilitating its nonpump tumorigenic function through an interaction with LARG, which predominantly localized in the cytoplasm. Moreover, PTEN or PI3K/AKT/mTOR signaling could affect DPAGT1, a glycosylating enzyme involved in the initial step of N-linked glycosylation, to inhibit glycosylation of NIS. In summary, our results elucidate a pump-independent, protumorigenic role for NIS in thyroid cancer via its cross-talk with PTEN signaling.Significance: A novel pump-independent protumorigenic role of nonmembranous NIS challenges the presumption that radioiodine treatment of thyroid cancer is ineffective when transmembrane NIS is not expressed. Cancer Res; 78(21); 6121-33. ©2018 AACR.
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Affiliation(s)
- Fang Feng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Nuclear Medicine, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Lamis Yehia
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Ying Ni
- Center for Clinical Genomics, Cleveland Clinic, Cleveland, Ohio
| | - Yi Seok Chang
- Department of Physiology and Cell Biology, and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Sissy Meihua Jhiang
- Department of Physiology and Cell Biology, and Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio
| | - Charis Eng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio. .,Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio.,Germline High Risk Cancer Focus Group, CASE Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
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5
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Aydoğan BI, Ersöz CC, Sak SD, Güllü S. THE ASSOCIATION BETWEEN LYMPH NODE METASTASIS AND MOLECULAR MARKERS IN DIFFERENTIATED THYROID CANCER. ACTA ENDOCRINOLOGICA-BUCHAREST 2018; 14:55-65. [PMID: 31149237 DOI: 10.4183/aeb.2018.55] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Context There is no consensus regarding routine usage and benefits of molecular markers for prediction of prognosis and assessment of risk groups in differentiated thyroid cancer (DTC). Objective We aimed to investigate NIS, Galectin-3, PTEN, P53 and Ki67 expressions in tumor tissue and metastatic lymph nodes in PTC and their association with lymph node metastasis and prognosis. Material and Methods Ninety two papillary thyroid cancer patients who underwent total thyroidectomy and central lymph node dissection were included in this study. NIS, Galectin-3, PTEN, P53 and Ki67 immunohistochemical stainings were performed for all surgical tumor tissues and metastatic lymph nodes of the 38 patients. Age, gender, tumor size, multifocality, capsular invasion, extrathyroidal extension and lymphocytic thyroiditis were assessed retrospectively. Results Seventy three females (79.3%) and nineteen males (20.7%) were included in this study. Risk of lymph node metastasis was higher in tumors with capsular invasion and extrathyroidal extension (p=0.03 and p < 0.001). NIS, PTEN and Galectin-3 protein expressions in tumor tissue were not associated with gender, tumor size, multifocality, extrathyroidal extension, capsular invasion, lymph node metastasis and tumor recurrence. Mean Ki 67 proliferation index was 2.08±0.95%. Ki 67 proliferation index was associated with tumor size (p=0.012). Intensity and expression of NIS and PTEN in tumor tissue were concordant with intensity and expression in metastatic lymph nodes (p<0.001). Ki 67 proliferation index in tumor was concordant with metastatic lymph nodes (p=0.02). Conclusions NIS, PTEN, Galectin-3, Ki67 and P53 expressions were not associated with the risk of lymph node metastasis in PTC patients. Routine analysis of these markers does not seem to be favorable. Further studies with new markers are necessary to determine prognostic predictors.
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Affiliation(s)
- B I Aydoğan
- Ankara University Faculty of Medicine, İbni Sina Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
| | - C C Ersöz
- Ankara University Faculty of Medicine, İbni Sina Hospital, Department of Pathology, Ankara, Turkey
| | - S D Sak
- Ankara University Faculty of Medicine, İbni Sina Hospital, Department of Pathology, Ankara, Turkey
| | - S Güllü
- Ankara University Faculty of Medicine, İbni Sina Hospital, Department of Endocrinology and Metabolism, Ankara, Turkey
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Tavares C, Coelho MJ, Eloy C, Melo M, da Rocha AG, Pestana A, Batista R, Ferreira LB, Rios E, Selmi-Ruby S, Cavadas B, Pereira L, Sobrinho Simões M, Soares P. NIS expression in thyroid tumors, relation with prognosis clinicopathological and molecular features. Endocr Connect 2018; 7:78-90. [PMID: 29298843 PMCID: PMC5754505 DOI: 10.1530/ec-17-0302] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 11/09/2017] [Indexed: 02/05/2023]
Abstract
Thyroid cancer therapy is based on surgery followed by radioiodine treatment. The incorporation of radioiodine by cancer cells is mediated by sodium iodide symporter (NIS) (codified by the SLC5A5 gene), that is functional only when targeted to the cell membrane. We aimed to evaluate if NIS expression in thyroid primary tumors would be helpful in predicting tumor behavior, response to therapy and prognosis. NIS expression was addressed by qPCR and immunohistochemistry. In order to validate our data, we also studied SLC5A5 expression on 378 primary papillary thyroid carcinomas from The Cancer Genome Atlas (TCGA) database. In our series, SLC5A5 expression was lower in carcinomas with vascular invasion and with extrathyroidal extension and in those harboring BRAFV600E mutation. Analysis of SLC5A5 expression from TCGA database confirmed our results. Furthermore, it showed that larger tumors, with locoregional recurrences and/or distant metastases or harboring RAS, BRAF and/or TERT promoter (TERTp) mutations presented significantly less SLC5A5 expression. Regarding immunohistochemistry, 12/211 of the cases demonstrated NIS in the membrane of tumor cells, those cases showed variable outcomes concerning therapy success, prognosis and all but one were wild type for BRAF, NRAS and TERTp mutations. SLC5A5 mRNA lower expression is associated with features of aggressiveness and with key genetic alterations involving BRAF, RAS and TERTp. Mutations in these genes seem to decrease protein expression and its targeting to the cell membrane. SLC5A5 mRNA expression is more informative than NIS immunohistochemical expression regarding tumor aggressiveness and prognostic features.
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Affiliation(s)
- Catarina Tavares
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Maria João Coelho
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Institute of Biomedical Sciences of Abel Salazar (ICBAS)Porto, Portugal
| | - Catarina Eloy
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Miguel Melo
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Department of EndocrinologyDiabetes and Metabolism, University and Hospital Center of Coimbra, Coimbra, Portugal
- Medical FacultyUniversity of Coimbra, Coimbra, Portugal
| | - Adriana Gaspar da Rocha
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Public Health UnitACeS Baixo Mondego, Coimbra, Portugal
| | - Ana Pestana
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Rui Batista
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Luciana Bueno Ferreira
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Elisabete Rios
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
- Department of PathologyMedical Faculty of the University of Porto, Porto, Portugal
- Department of PathologyHospital de S. João, Porto, Portugal
| | - Samia Selmi-Ruby
- Inserm UMR-S1052CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Bruno Cavadas
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Institute of Biomedical Sciences of Abel Salazar (ICBAS)Porto, Portugal
| | - Luísa Pereira
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
| | - Manuel Sobrinho Simões
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
- Department of PathologyMedical Faculty of the University of Porto, Porto, Portugal
- Department of PathologyHospital de S. João, Porto, Portugal
| | - Paula Soares
- Instituto de Investigação e Inovação em Saúde (i3S)Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP)Porto, Portugal
- Medical Faculty of the University of PortoPorto, Portugal
- Department of PathologyMedical Faculty of the University of Porto, Porto, Portugal
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Gao SY, Zhang XY, Wei W, Li XT, Li YL, Xu M, Sun YS, Zhang XP. Identification of benign and malignant thyroid nodules by in vivo iodine concentration measurement using single-source dual energy CT: A retrospective diagnostic accuracy study. Medicine (Baltimore) 2016; 95:e4816. [PMID: 27684811 PMCID: PMC5265904 DOI: 10.1097/md.0000000000004816] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This study proposed to determine whether in vivo iodine concentration measurement by single-source dual energy (SSDE) CT can improve differentiation between benign and malignant thyroid nodules. In total, 53 patients presenting with thyroid nodules underwent SSDE CT scanning. Iodine concentrations were measured for each nodule and normal thyroid tissue using the GSI-viewer image analysis software. A total of 26 thyroid nodules were malignant in 26 patients and confirmed by surgery; 33 nodules from 27 patients were benign, with 10 confirmed by surgery and others after follow-up. Iodine concentrations with plain CT were significantly lower in malignant than benign nodules (0.47 ± 0.20 vs 1.17 ± 0.38 mg/mL, P = 0.00). Receiver operating characteristic (ROC) curve showed an area under the curve (AUC) of 0.93; with a cutoff of 0.67, iodine concentration showed 92.3% sensitivity and 88.5% specificity in diagnosing malignancy. Iodine concentration obtained by enhanced and plain CT were significantly higher in malignant than benign nodules (9.05 ± 3.35 vs 3.46 ± 2.24 mg/mL, P = 0.00). ROC curve analysis showed an AUC of 0.93; with a cutoff value of 3.37, iodine concentration displayed 78% sensitivity, 95% specificity in diagnosing malignancy. Combining unenhanced with enhanced iodine concentrations, the diagnostic equation was: Y = -8.641 × unenhanced iodine concentration + 0.663 × iodine concentration. ROC curve showed an AUC of 0.98 (95% CI, 0.94, 1.00). With Y ≥ -2 considered malignancy, diagnostic sensitivity and specificity were 96%, 96.3%, respectively. This study concluded that SSDE CT can detect the differences in iodine uptake and blood supply between benign and malignant thyroid lesions.
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Affiliation(s)
- Shun-Yu Gao
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
| | - Xiao-Yan Zhang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
| | - Wei Wei
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Head and Neck Surgery, Peking University Cancer Hospital & Institute
| | - Xiao-Ting Li
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
| | - Yan-Ling Li
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
| | - Min Xu
- KLMI, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Ying-Shi Sun
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
- Correspondence: Ying-Shi Sun, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology, Peking University Cancer Hospital & Institute, Beijing, China (e-mail: )
| | - Xiao-Peng Zhang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Radiology
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Lee JW, Min HS, Lee SM, Kwon HW, Chung JK. Relations Between Pathological Markers and Radioiodine Scan and (18)F-FDG PET/CT Findings in Papillary Thyroid Cancer Patients With Recurrent Cervical Nodal Metastases. Nucl Med Mol Imaging 2015; 49:127-34. [PMID: 26085858 DOI: 10.1007/s13139-015-0324-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/14/2015] [Accepted: 01/29/2015] [Indexed: 11/30/2022] Open
Abstract
PURPOSE The aim of this study was to investigate relationships between the immunohistochemical results and radioiodine scan and (18)F-FDG PET findings in papillary thyroid cancer (PTC) patients with recurrent cervical nodal metastases. METHODS A total of 46 PTC patients who had undergone a radioiodine scan and/or (18)F-FDG PET/CT and a subsequent operation on recurrent cervical lymph nodes were enrolled. Twenty-seven patients underwent (18)F-FDG PET/CT, 8 underwent radioiodine scans, and 11 underwent both scans. In all surgical specimens, the immunoexpressions of thyroglobulin (Tg), sodium-iodide symporter (NIS), glucose transporter 1 (Glut-1), and somatostatin receptor 1 and 2A (SSTR1 and SSTR2A) were assessed, and associations between these expressions and radioiodine scan and (18)F-FDG PET findings were evaluated. RESULTS Of the 38 patients who underwent (18)F-FDG PET/CT, all patients with weak Tg expression had positive (18)F-FDG uptake, while only 45 % of the patients with moderate or strong Tg expression showed positive uptake (p = 0.01). The proportion of patients with positive (18)F-FDG uptake increased as the degree of Glut-1 expression with luminal accentuation increased. Of the 19 patients who underwent a radioiodine scan, the proportion with positive radioiodine uptake was greater among patients with strong NIS and SSTR2A expression than among patients expressing these markers at weak levels (p = 0.04 for all). All three patients with weak Tg expression were negative for radioiodine uptake. CONCLUSION The (18)F-FDG uptakes of recurrent cervical nodes are related to strong Glut-1 expression with luminal accentuation and weak Tg expression, whereas radioiodine uptake is related to the strong expressions of NIS and SSTR2A.
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Affiliation(s)
- Jeong Won Lee
- Department of Nuclear Medicine, Catholic Kwandong University International St. Mary's Hospital, Seoul, Korea
| | - Hye Sook Min
- Department of Pathology, Seoul National University Hospital, Seoul, Korea
| | - Sang Mi Lee
- Department of Nuclear Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyun Woo Kwon
- Department of Nuclear Medicine, Seoul National University College of Medicine, Medicine, 101 Daehang-Ro, Jongno-Gu, Seoul, 110-744 Korea
| | - June-Key Chung
- Department of Nuclear Medicine, Seoul National University College of Medicine, Medicine, 101 Daehang-Ro, Jongno-Gu, Seoul, 110-744 Korea ; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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B-RafV600E inhibits sodium iodide symporter expression via regulation of DNA methyltransferase 1. Exp Mol Med 2014; 46:e120. [PMID: 25378232 PMCID: PMC4261912 DOI: 10.1038/emm.2014.68] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 09/18/2014] [Indexed: 02/03/2023] Open
Abstract
B-RafV600E mutant is found in 40-70% of papillary thyroid carcinoma (PTC) and has an important role in the pathogenesis of PTC. The sodium iodide symporter (NIS) is an integral plasma membrane glycoprotein that mediates active iodide transport into the thyroid follicular cells, and B-RafV600E has been known to be associated with the loss of NIS expression. In this study, we found that B-RafV600E inhibited NIS expression by the upregulation of its promoter methylation, and that specific regions of CpG islands of NIS promoter in B-RafV600E harboring PTC were highly methylated compared with surrounding normal tissue. Although DNA methyltransferase 3a and 3b (DNMT3a,3b) were not increased by B-RafV600E, DNMT1 expression was markedly upregulated in PTC and B-RafV600E expressing thyrocytes. Furthermore, DNMT1 expression was upregulated by B-RafV600E induced NF-κB activation. These results led us to conclude that NIS promoter methylation, which was induced by B-RafV600E, is one of the possible mechanisms involved in NIS downregulation in PTC.
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Abstract
Thyroid cancer is the most common endocrine cancer with 1,690 deaths each year. There are four main types of which the papillary and follicular types together account for >90% followed by medullary cancers with 3% to 5% and anaplastic carcinomas making up <3%. Epigenetic events of DNA hypermethylation are emerging as promising molecular targets for cancer detection. Our immediate and long term goal is to identify DNA methylation markers for early detection of thyroid cancer. This pilot study comprised of 21 patients to include 11 papillary thyroid cancers (PTC), 2 follicular thyroid cancers (FTC), 5 normal thyroid cases, and 3 hyperthyroid cases. Aberrant promoter methylation was examined in 24 tumor suppressor genes using the methylation specific multiplex ligation-dependent probe amplification (MS-MLPA) assay and in the NIS gene using methylation-specific PCR (MSP). The frequently methylated genes were CASP8 (17/21), RASSF1 (16/21) and NIS (9/21). In the normal samples, CASP8, RASSF1 and NIS were methylated in 5/5, 4/5 and 1/5 respectively. In the hyperthyroid samples, CASP8, RASSF1 and NIS were methylated in 3/3, 2/3 and 1/3 respectively. In the thyroid cancers, CASP8, RASSF1, and NIS were methylated in 9/13, 10/13, and 7/13 respectively. CASP8, RASSF1 and NIS were also methylated in concurrently present normal thyroid tissue in 3/11, 4/11 and 3/11 matched thyroid cancer cases (matched for presence of both normal thyroid tissue and thyroid cancer), respectively. Our data suggests that aberrant methylation of CASP8, RASSF1, and NIS maybe an early change in thyroid tumorigenesis regardless of cell type.
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11
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Carratù MR, Marasco C, Mangialardi G, Vacca A. Retinoids: novel immunomodulators and tumour-suppressive agents? Br J Pharmacol 2013; 167:483-92. [PMID: 22577845 DOI: 10.1111/j.1476-5381.2012.02031.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Retinoids play important roles in the transcriptional activity of normal, degenerative and tumour cells. Retinoid analogues may be promising therapeutic agents for the treatment of immune disorders as different as type I diabetes and systemic lupus erythematosus. In addition, the use of retinoids in cancer treatment has progressed significantly in the last two decades; thus, numerous retinoid compounds have been synthesized and tested. In this paper, the actual or potential use of retinoids as immunomodulators or tumour-suppressive agents is discussed.
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Affiliation(s)
- M R Carratù
- Department of Biomedical Sciences and Human Oncology, University of Bari 'Aldo Moro', Bari, Italy
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12
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WANG SHASHA, LIANG JUN, LIN YANSONG, YAO RUYONG. Differential expression of the Na(+)/I(-) symporter protein in thyroid cancer and adjacent normal and nodular goiter tissues. Oncol Lett 2013; 5:368-372. [PMID: 23255951 PMCID: PMC3525340 DOI: 10.3892/ol.2012.947] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 09/20/2012] [Indexed: 11/05/2022] Open
Abstract
The ability of differentiated thyroid cancer and adjacent thyroid cells to concentrate iodine is dependent on their expression of a functional NA(+)/I(-) symporter (NIS). Thyroid cancer is insensitive to (131)I treatment if the thyroid cells lack the ability to concentrate iodide. Thus, in this study, we aimed to determine whether the NIS protein was differentially expressed in thyroid cancer and various surrounding tissues. We recruited 114 cases of papillary thyroid carcinoma (PTC) and divided them into two groups: 60 patients of 9 males and 51 females with a mean age of 49.55 years who had PTC with surrounding nodular goiter tissue (simplified as G(NG)), and 54 patients of 8 males and 46 females with a mean age of 45.78 years who had PTC with surrounding normal tissue (G(normal)) after total or near total thyroidectomy. Formalin-fixed and paraffin-embedded tissue sections were prepared for immunohistochemical staining of the NIS protein and semi-quantitative analysis. The NIS protein was expressed in the basolateral membrane of the normal epithelium, while PTC and nodular goiter cells expressed NIS in the cytoplasm and basolateral membrane. The expression levels of the NIS protein were higher in the adjacent normal tissues compared with those of the surrounding nodular goiter tissues (P=0.002) and expression levels of the NIS protein were higher in PTC tissues compared with the surrounding nodular goiter tissues (P=0.008). The data from this study indicate that cancer-surrounding tissues may play a significant role in mediating the sensitivity of PTC patients to radioactive iodine treatment.
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Affiliation(s)
- SHASHA WANG
- Department of Oncology, The Affiliated Hospital of Qingdao Medical College, Qingdao, Shandong 266003
| | - JUN LIANG
- Department of Oncology, The Affiliated Hospital of Qingdao Medical College, Qingdao, Shandong 266003
| | - YANSONG LIN
- Department of Nuclear Medicine, Peking Union Medical College Hospital (PUMCH), Beijing 100730
| | - RUYONG YAO
- Central Laboratory, The Affiliated Hospital of Qingdao Medical College, Qingdao, Shandong 266003,
P.R. China
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13
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Lewy GD, Sharma N, Seed RI, Smith VE, Boelaert K, McCabe CJ. The pituitary tumor transforming gene in thyroid cancer. J Endocrinol Invest 2012; 35:425-33. [PMID: 22522436 DOI: 10.3275/8332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The pituitary tumor transforming gene (PTTG) is a multifunctional proto-oncogene that is over-expressed in various tumors including thyroid carcinomas, where it is a prognostic indicator of tumor recurrence. PTTG has potent transforming capabilities in vitro and in vivo, and many studies have investigated the potential mechanisms by which PTTG contributes to tumorigenesis. As the human securin, PTTG is involved in critical mechanisms of cell cycle regulation, whereby aberrant expression induces aneuploidy. PTTG may further contribute to tumorigenesis through its role in DNA damage response pathways and via complex interactions with hormones and growth factors. Furthermore, PTTG over-expression negatively impacts upon the efficacy of radioiodine therapy in thyroid cancer, through repression of expression and function of the sodium iodide symporter. Given its various roles at all disease stages, PTTG appears to be an important oncogene in thyroid cancer. This review discusses the current knowledge of PTTG with particular focus on its role in thyroid cancer.
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Affiliation(s)
- G D Lewy
- School of Clinical and Experimental Medicine, Institute of Biomedical Research, University of Birmingham, Birmingham, UK
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14
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Liu Z, Xing M. Induction of sodium/iodide symporter (NIS) expression and radioiodine uptake in non-thyroid cancer cells. PLoS One 2012; 7:e31729. [PMID: 22359623 PMCID: PMC3281006 DOI: 10.1371/journal.pone.0031729] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 01/12/2012] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND This study was designed to explore the therapeutic potential of suppressing MAP kinase and PI3K/Akt pathways and histone deacetylase (HDAC) to induce the expression of sodium/iodide symporter (NIS) and radioiodine uptake in non-thyroid cancer cells. METHODS We tested the effects of the MEK inhibitor RDEA119, the Akt inhibitor perifosine, and the HDAC inhibitor SAHA on NIS expression in thirteen human cancer cell lines derived from melanoma, hepatic carcinoma, gastric carcinoma, colon carcinoma, breast carcinoma, and brain cancers. We also examined radioiodine uptake and histone acetylation at the NIS promoter in selected cells. RESULTS Overall, the three inhibitors could induce NIS expression, to various extents, in melanoma and all the epithelial carcinoma-derived cells but not in brain cancer-derived cells. SAHA was most effective and its effect could be significantly enhanced by RDEA119 and perifosine. The expression of NIS, at both mRNA and protein levels, was most robust in the melanoma cell M14, hepatic carcinoma cell HepG2, and the gastric carcinoma cell MKN-7 cell. Radioiodine uptake was correspondingly induced, accompanied by robust increase in histone acetylation at the NIS promoter, in these cells when treated with the three inhibitors. CONCLUSIONS This is the first demonstration that simultaneously suppressing the MAP kinase and PI3K/Akt pathways and HDAC could induce robust NIS expression and radioiodine uptake in certain non-thyroid human cancer cells, providing novel therapeutic implications for adjunct radioiodine treatment of these cancers.
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Affiliation(s)
- Zhi Liu
- Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology and Metabolism, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Mingzhao Xing
- Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology and Metabolism, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail:
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15
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Kloth L, Belge G, Burchardt K, Loeschke S, Wosniok W, Fu X, Nimzyk R, Mohamed SA, Drieschner N, Rippe V, Bullerdiek J. Decrease in thyroid adenoma associated (THADA) expression is a marker of dedifferentiation of thyroid tissue. BMC Clin Pathol 2011; 11:13. [PMID: 22050638 PMCID: PMC3229435 DOI: 10.1186/1472-6890-11-13] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 11/04/2011] [Indexed: 12/17/2022] Open
Abstract
Background Thyroid adenoma associated (THADA) has been identified as the target gene affected by chromosome 2p21 translocations in thyroid adenomas, but the role of THADA in the thyroid is still elusive. The aim of this study was to quantify THADA gene expression in normal tissues and in thyroid hyper- and neoplasias, using real-time PCR. Methods For the analysis THADA and 18S rRNA gene expression assays were performed on 34 normal tissue samples, including thyroid, salivary gland, heart, endometrium, myometrium, lung, blood, and adipose tissue as well as on 85 thyroid hyper- and neoplasias, including three adenomas with a 2p21 translocation. In addition, NIS (sodium-iodide symporter) gene expression was measured on 34 of the pathological thyroid samples. Results Results illustrated that THADA expression in normal thyroid tissue was significantly higher (p < 0.0001, exact Wilcoxon test) than in the other tissues. Significant differences were also found between non-malignant pathological thyroid samples (goiters and adenomas) and malignant tumors (p < 0.001, Wilcoxon test, t approximation), anaplastic carcinomas (ATCs) and all other samples and also between ATCs and all other malignant tumors (p < 0.05, Wilcoxon test, t approximation). Furthermore, in thyroid tumors THADA mRNA expression was found to be inversely correlated with HMGA2 mRNA. HMGA2 expression was recently identified as a marker revealing malignant transformation of thyroid follicular tumors. A correlation between THADA and NIS has also been found in thyroid normal tissue and malignant tumors. Conclusions The results suggest THADA being a marker of dedifferentiation of thyroid tissue.
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Affiliation(s)
- Lars Kloth
- Center for Human Genetics, University of Bremen, Leobener Str, ZHG, 28359 Bremen, Germany.
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16
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Smith VE, Read ML, Turnell AS, Watkins RJ, Watkinson JC, Lewy GD, Fong JCW, James SR, Eggo MC, Boelaert K, Franklyn JA, McCabe CJ. A novel mechanism of sodium iodide symporter repression in differentiated thyroid cancer. J Cell Sci 2009; 122:3393-402. [PMID: 19706688 DOI: 10.1242/jcs.045427] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Differentiated thyroid cancers and their metastases frequently exhibit reduced iodide uptake, impacting on the efficacy of radioiodine ablation therapy. PTTG binding factor (PBF) is a proto-oncogene implicated in the pathogenesis of thyroid cancer. We recently reported that PBF inhibits iodide uptake, and have now elucidated a mechanism by which PBF directly modulates sodium iodide symporter (NIS) activity in vitro. In subcellular localisation studies, PBF overexpression resulted in the redistribution of NIS from the plasma membrane into intracellular vesicles, where it colocalised with the tetraspanin CD63. Cell-surface biotinylation assays confirmed a reduction in plasma membrane NIS expression following PBF transfection compared with vector-only treatment. Coimmunoprecipitation and GST-pull-down experiments demonstrated a direct interaction between NIS and PBF, the functional consequence of which was assessed using iodide-uptake studies in rat thyroid FRTL-5 cells. PBF repressed iodide uptake, whereas three deletion mutants, which did not localise within intracellular vesicles, lost the ability to inhibit NIS activity. In summary, we present an entirely novel mechanism by which the proto-oncogene PBF binds NIS and alters its subcellular localisation, thereby regulating its ability to uptake iodide. Given that PBF is overexpressed in thyroid cancer, these findings have profound implications for thyroid cancer ablation using radioiodine.
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Affiliation(s)
- Vicki E Smith
- School of Clinical and Experimental Medicine, Institute of Biomedical Research, University of Birmingham B15 2TH, UK
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17
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Mishra A, Pal L, Mishra SK. Distribution of Na+/I- symporter in thyroid cancers in an iodine-deficient population: an immunohistochemical study. World J Surg 2007; 31:1737-1742. [PMID: 17653791 DOI: 10.1007/s00268-007-9156-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND There are significant differences in the prevalence and behavior of differentiated thyroid cancers (DTC) in the iodine-deficient areas (IDA) and iodine-sufficient areas (ISA) of the world. The sodium iodide symporter (NIS), mediates active transport of iodide across the basolateral aspect of the thyroid follicular cell. However, no study had specifically addressed the issue of expression of sodium iodide symporter (NIS) in thyroid cancer specimens from IDA. The aim of the present study was to find an expression pattern of NIS in DTC in an iodine-deficient population, and to correlate it with histological subtypes, i.e., papillary carcinoma (PTC), follicular carcinoma (FTC), poorly differentiated carcinoma (PDTC), as well as with clinicopathological risk factors and iodine ((131)I) uptake by distant metastases. METHODS Immunohistochemistry was carried out in 39 cases of thyroid cancer (41 samples) including PTC (15), FTC (10), PDTC (9), anaplastic cancer (5), and resected metastases (2). Expression was correlated with the patient's age, sex, tumor size, presence or absence of extrathyroidal invasion, distant and lymph node metastases, and whole body radioiodine scan. RESULTS Overall, 61.8% of DTC patients showed NIS expression. There was no significant difference in expression rate between PTC (73.3%) and FTC (70.0%). However, expression was significantly less in PDTC (33.3%). There was no correlation between NIS expression and any clinicopathological risk factor (p > .05). The results of NIS expression were not concordant with (131)I uptake by metastases in 4 of 10 cases. (131)I uptake was absent in one case despite the finding that a metastatic site itself showed NIS expression in that case, whereas in the remaining 9 cases (131)I uptake was present although three cases did not show NIS expression. CONCLUSIONS In our experience, overall expression of NIS was comparable to other studies from ISA. We conclude that expression may not accurately predict radioactive iodine (RAI) uptake by metastases.
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MESH Headings
- Adenocarcinoma, Follicular/chemistry
- Adenocarcinoma, Follicular/pathology
- Adult
- Aged
- Biomarkers, Tumor/analysis
- Carcinoma/chemistry
- Carcinoma/diagnosis
- Carcinoma/epidemiology
- Carcinoma/pathology
- Carcinoma, Papillary/chemistry
- Carcinoma, Papillary/pathology
- Carcinoma, Papillary, Follicular/chemistry
- Carcinoma, Papillary, Follicular/pathology
- Female
- Goiter, Endemic/epidemiology
- Humans
- Immunohistochemistry/methods
- Iodine/deficiency
- Iodine Radioisotopes
- Lymphatic Metastasis/pathology
- Male
- Middle Aged
- Predictive Value of Tests
- Symporters/analysis
- Thyroid Neoplasms/chemistry
- Thyroid Neoplasms/diagnosis
- Thyroid Neoplasms/epidemiology
- Thyroid Neoplasms/pathology
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Affiliation(s)
- Anjali Mishra
- Department of Endocrine Surgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India
| | - Lily Pal
- Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India
| | - Saroj Kanta Mishra
- Department of Endocrine Surgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, 226 014, India.
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18
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Lee SJ, Choi KC, Han JP, Park YE, Choi MG. Relationship of sodium/iodide symporter expression with I131 whole body scan uptake between primary and metastatic lymph node papillary thyroid carcinomas. J Endocrinol Invest 2007; 30:28-34. [PMID: 17318019 DOI: 10.1007/bf03347392] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of the present study was to evaluate total and membranous Na+/I- symporter (NIS) expressions in papillary thyroid carcinoma (PTC) tissue, correlation of NIS expression between primary and metastatic lymph node (LN) PTC tissues, and relationship of NIS expression with I131 whole body scan (WBS) uptake between primary and metastatic LN PTC tissues by analyzing 17 pairs of primary and metastatic LN PTC tissues. Staining positivity was calculated, and staining intensity was graded as negative (0), weak (1+), moderate (2+) and strong (3+). In primary PTC tissues, positivities and intensities of normal cells were higher than those of carcinoma cells but had no correlation with those in matched metastatic LN PTC tissues. In classic type, positivities, intensities and membranous intensities (mIS) were correlated between primary and matched metastatic LN PTC tissues. In patients aged younger than 45 yr, positivities and intensities in primary PTC tissues had correlation with those in matched metastatic LN PTC tissues. Positivities, intensities, mIS and pathological subtype of carcinoma cells in primary PTC tissues were not correlated with age, tumor size, TNM stage, MACIS score and thyroglobulin (Tg) levels at the time of I131 WBS. Sensitivity, specificity, as well as positive and negative predicted values of mIS in patients with I131 WBS uptake were 69.2, 75, 90 and 42.9% in primary PTC tissues, and 92.3, 100, 100 and 80% in metastatic LN PTC tissues. The results of mIS taken either as positive or negative were correlated with those of I131 WBS after controlling for age. Our results demonstrate that PTC tissues have altered total and membranous NIS expressions, suggesting that NIS expression in primary PTC tissues may predict NIS expression and I131 WBS uptake in matched metastatic LN PTC tissues.
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Affiliation(s)
- S J Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Hallym University, ChunCheon Sacred Heart Hospital, Gyo-Dong 153, ChunCheon-Si, Kangwon-Do 200-704, Republic of Korea.
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19
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Kamel N, Corapcioglu D, Sahin M, Gürsoy A, Küçük O, Aras G. I-131 therapy for thyroglobulin positive patients without anatomical evidence of persistent disease. J Endocrinol Invest 2004; 27:949-53. [PMID: 15762043 DOI: 10.1007/bf03347538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE the aim of this retrospective study was to evaluate the diagnostic relevance of I-131 whole body scan (WBS) performed after second empirical therapeutic doses of iodine-131 (I-131) in thyroglobulin (Tg)-positive thyroid cancer patients without evidence of local and distant metastasis. We also evaluated the efficacy of second empirical therapeutic doses of I-131 in these patients. METHODS we retrospectively compared the results of diagnostic I-131 WBS and post-therapy scans of second therapeutic doses of I-131 in 38 patients with detectable Tg while off T4 therapy (TSH>25 mlU/ml). All patients underwent a near-total or total thyroidectomy and I-131 ablation with 75-125 mCi. All of the reported subjects had no prior evidence for detectable disease before second high dose empirical I-131 therapy. RESULTS there was almost complete concordance in uptake between diagnostic I-131 WBS and final scans carried out after second I-131 therapy in 22 out of 38 patients. Whereas abnormal foci of new uptake was detected in all of the remaining 16 patients, seven of them were found to have negative diagnostic WBS results. Distant metastases were observed in 3 of 16 subjects and mediastinal uptake was found in 2 of 16 patients in post-therapy scan. During the subsequent follow-up, extending from 8-46 months, 6 out of 16 patients showed normalization of serum Tg levels while off T4. Serum Tg levels were normalized in 3 out of 7 patients who had negative WBS results, increased in one and unchanged in the remaining 3. None of the patients with distant metastases had normalization of Tg levels. Totally, 6 out of 38 showed normalization of Tg levels while off T4 therapy. CONCLUSION the empirical therapeutic doses of 1-131 may help in localization of the disease in Tg positive patients without anatomical evidence of persistent disease, but the effect of I-131 therapy on long-term survival is not obvious.
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Affiliation(s)
- N Kamel
- Department of Endocrinology and Metabolism, Ankara University, Faculty of Medicine, Ankara, Turkey
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20
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Trouttet-Masson S, Selmi-Ruby S, Bernier-Valentin F, Porra V, Berger-Dutrieux N, Decaussin M, Peix JL, Perrin A, Bournaud C, Orgiazzi J, Borson-Chazot F, Franc B, Rousset B. Evidence for transcriptional and posttranscriptional alterations of the sodium/iodide symporter expression in hypofunctioning benign and malignant thyroid tumors. THE AMERICAN JOURNAL OF PATHOLOGY 2004; 165:25-34. [PMID: 15215159 PMCID: PMC1618532 DOI: 10.1016/s0002-9440(10)63272-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The uptake of iodide by epithelial thyroid cells requires the expression of a specific transporter, the Na(+)/I(-) symporter, NIS. Benign and malignant thyroid tumors of epithelial origin show a decrease up to a loss of iodide uptake activity. Previous studies of the human NIS (hNIS) gene expression in these tumors, based on the amplification of transcripts and/or immunohistochemical detection of the protein, have yielded divergent data; hNIS expression was found either increased or decreased. To get a new and integrated view of the alterations of hNIS expression in hypofunctioning thyroid tumors, we performed investigations of hNIS transcript and hNIS protein levels on the same tumors and paired normal tissue samples. HNIS, identified as a 75- to 80-kd species, was present in all normal tissue samples from euthyroid patients, but was undetectable, even at high membrane protein input, in all benign and malignant hypofunctioning thyroid tumors. By contrast, approximately 50% of tumors contained hNIS transcripts. This dissociation between transcript and protein levels was not found for the transcript and protein encoded by the PDS gene assayed in the same tumors. The hNIS transcript-positive tumors contained small amounts of low-molecular mass hNIS-immunoreactive species identified as nonglycosylated hNIS. Tumors containing the nonmature form of hNIS exhibited a predominant intracellular immunolabeling. In conclusion, our data show that benign and malignant hypofunctioning thyroid tumors either no longer express hNIS protein or express only a very low amount of nonglycosylated hNIS and indicate that the impairment of hNIS gene expression might result from alterations at both transcriptional and posttranscriptional levels.
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Affiliation(s)
- Séverine Trouttet-Masson
- UMR369 INSERM /Université Claude Bernard-Lyon 1 and Institut Fédératif de Recherche 62, Faculté de Médecine Lyon-RTH Laennec, Rue Guillaume Paradin, 69372 Lyon Cedex 08, France.
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21
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Puppin C, D'Elia AV, Pellizzari L, Russo D, Arturi F, Presta I, Filetti S, Bogue CW, Denson LA, Damante G. Thyroid-specific transcription factors control Hex promoter activity. Nucleic Acids Res 2003; 31:1845-52. [PMID: 12655000 PMCID: PMC152810 DOI: 10.1093/nar/gkg295] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The homeobox-containing gene Hex is expressed in several cell types, including thyroid follicular cells, in which it regulates the transcription of tissue- specific genes. In this study the regulation of Hex promoter activity was investigated. Using co- transfection experiments, we demonstrated that the transcriptional activity of the Hex gene promoter in rat thyroid FRTL-5 cells is approximately 10-fold greater than that observed in HeLa and NIH 3T3 cell lines (which do not normally express the Hex gene). To identify the molecular mechanisms underlying these differences, we evaluated the effect of the thyroid- specific transcription factor TTF-1 on the Hex promoter activity. TTF-1 produced 3-4-fold increases in the Hex promoter activity. Gel- retardation assays and mutagenesis experiments revealed the presence of functionally relevant TTF-1 binding sites in the Hex promoter region. These in vitro data may also have functional relevance in vivo, since a positive correlation between TTF-1 and Hex mRNAs was demonstrated in human thyroid tissues by means of RT-PCR analysis. The TTF-1 effect, however, is not sufficient to explain the difference in Hex promoter activity between FRTL-5 and cells that do not express the Hex gene. For this reason, we tested whether Hex protein is able to activate the Hex promoter. Indeed, co-transfection experiments indicate that Hex protein is able to increase the activity of its own promoter in HeLa cells approximately 4-fold. TTF-1 and Hex effects are additive: when transfected together in HeLa cells, the Hex promoter activity is increased 6-7-fold. Thus, the contemporary presence of both TTF-1 and Hex could be sufficient to explain the higher transcriptional activity of the Hex promoter in thyroid cells with respect to cell lines that do not express the Hex gene. These findings demonstrate the existence of direct cross-regulation between thyroid-specific transcription factors.
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Affiliation(s)
- Cinzia Puppin
- Dipartimento di Scienze e Tecnologie Biomediche, Università di Udine, Piazzale Kolbe, 1 33100 Udine, Italy
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22
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Chiefari E, Brunetti A, Arturi F, Bidart JM, Russo D, Schlumberger M, Filetti S. Increased expression of AP2 and Sp1 transcription factors in human thyroid tumors: a role in NIS expression regulation? BMC Cancer 2002; 2:35. [PMID: 12475396 PMCID: PMC139985 DOI: 10.1186/1471-2407-2-35] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2002] [Accepted: 12/10/2002] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sodium/iodide symporter (NIS) is a key protein in iodide transport by thyroid cells and this activity is a prerequisite for effective radioiodide treatment of thyroid cancer. In the majority of thyroid cancers, however, iodide uptake is reduced, probably as a result of decreased NIS protein expression. METHODS To identify the mechanisms that negatively affect NIS expression in thyroid tumors, we performed electrophoresis mobility shift assays and immunoblot analysis of nuclear protein extracts from normal and tumoral thyroid tissues from 14 unrelated patients. RESULTS Two proteins closely related to the transcription factors AP2 and Sp1 were identified in the nuclear extracts. Expression of both AP2 and Sp1 in nuclear extracts from thyroid tumors was significantly higher than that observed in corresponding normal tissues. CONCLUSION These observations raise the possibility that NIS expression, and subsequently iodide transport, are reduced in thyroid tumors at least in part owing to alterations in the binding activity of AP2 and Sp1 transcription factors to NIS promoter.
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MESH Headings
- Adenoma/chemistry
- Adenoma/genetics
- Adenoma/metabolism
- Adult
- Aged
- Carcinoma, Papillary/chemistry
- Carcinoma, Papillary/genetics
- Carcinoma, Papillary/metabolism
- Carcinoma, Papillary, Follicular/chemistry
- Carcinoma, Papillary, Follicular/genetics
- Carcinoma, Papillary, Follicular/metabolism
- Cell Extracts/chemistry
- Cell Nucleus/chemistry
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- DNA-Binding Proteins/metabolism
- DNA-Binding Proteins/physiology
- Electrophoretic Mobility Shift Assay
- Female
- Gene Expression Regulation, Neoplastic/genetics
- Gene Expression Regulation, Neoplastic/physiology
- Humans
- Immunoblotting
- Male
- Middle Aged
- Promoter Regions, Genetic/genetics
- Promoter Regions, Genetic/physiology
- Sp1 Transcription Factor/genetics
- Sp1 Transcription Factor/immunology
- Sp1 Transcription Factor/metabolism
- Sp1 Transcription Factor/physiology
- Symporters/biosynthesis
- Symporters/genetics
- Thyroid Neoplasms/chemistry
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/metabolism
- Transcription Factor AP-2
- Transcription Factors/genetics
- Transcription Factors/immunology
- Transcription Factors/metabolism
- Transcription Factors/physiology
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Affiliation(s)
- Eusebio Chiefari
- Department of Experimental and Clinical Medicine "G. Salvatore", University of Catanzaro, 88100 Catanzaro, Italy
| | - Antonio Brunetti
- Department of Experimental and Clinical Medicine "G. Salvatore", University of Catanzaro, 88100 Catanzaro, Italy
| | - Franco Arturi
- Department of Experimental and Clinical Medicine "G. Salvatore", University of Catanzaro, 88100 Catanzaro, Italy
| | - Jean-Michel Bidart
- Département de Biologie Clinique and Service de Médecine Nucléaire, Institut Gustave Roussy, 94805 Villejuif, France
| | - Diego Russo
- Department of Pharmacobiological Sciences, University of Catanzaro, 88100 Catanzaro, Italy
| | - Martin Schlumberger
- Département de Biologie Clinique and Service de Médecine Nucléaire, Institut Gustave Roussy, 94805 Villejuif, France
| | - Sebastiano Filetti
- Department of Clinical Sciences, University of Roma "La Sapienza", Roma, Italy
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23
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Affiliation(s)
- S M Jhiang
- Departments of Physiology and Internal Medicine, Ohio State University, 302 Hamilton Hall, 1645 Neil Avenue, Columbus, OH 43210, USA.
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