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Norman O, Vornanen T, Franssila H, Liinamaa J, Karvonen E, Kotkavaara T, Pohjanen VM, Ylikärppä R, Pihlajaniemi T, Hurskainen M, Heikkinen A. Expression of Collagen XIII in Tissues of the Thyroid and Orbit With Relevance to Thyroid-Associated Ophthalmopathy. Invest Ophthalmol Vis Sci 2024; 65:6. [PMID: 38564194 PMCID: PMC10996972 DOI: 10.1167/iovs.65.4.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Purpose Antibodies against collagen XIII have previously been identified in patients with active thyroid-associated ophthalmopathy (TAO). Although collagen XIII expression has been described in extraocular muscles and orbital fat, its detailed localization in extraocular and thyroid tissues and the connection to autoimmunity for collagen XIII remain unclear. Our objective was to map the potential targets for these antibodies in the tissues of the orbit and thyroid. Methods We evaluated the expression of collagen XIII in human patient and mouse orbital and thyroid tissues with immunostainings and RT-qPCR using Col13a1-/- mice as negative controls. COL13A1 expression in Graves' disease and goiter thyroid samples was compared with TGF-β1 and TNF, and these were also studied in human thyroid epithelial cells and fibroblasts. Results Collagen XIII expression was found in the neuromuscular and myotendinous junctions of extraocular muscles, blood vessels of orbital connective tissue and fat and the thyroid, and in the thyroid epithelium. Thyroid expression was also seen in germinal centers in Graves' disease and in neoplastic epithelium. The expression of COL13A1 in goiter samples correlated with levels of TGF-B1. Upregulation of COL13A1 was reproduced in thyroid epithelial cells treated with TGF-β1. Conclusions We mapped the expression of collagen XIII to various locations in the orbit, demonstrated its expression in the pathologies of the Graves' disease thyroid and confirmed the relationship between collagen XIII and TGF-β1. Altogether, these data add to our understanding of the targets of anti-collagen XIII autoantibodies in TAO.
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Affiliation(s)
- Oula Norman
- ECM-Hypoxia Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Tuuli Vornanen
- Department of General Surgery, Oulu University Hospital, and Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Hanna Franssila
- Department of General Surgery, Oulu University Hospital, and Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Johanna Liinamaa
- Department of Ophthalmology, Oulu University Hospital, and Research Unit of Clinical Medicine, Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Elina Karvonen
- Department of Ophthalmology, Oulu University Hospital, and Research Unit of Clinical Medicine, Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Tommi Kotkavaara
- Department of Ophthalmology, Oulu University Hospital, and Research Unit of Clinical Medicine, Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Vesa-Matti Pohjanen
- Cancer and Translational Medicine Research Unit, Medical Research Centre Oulu, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Ritva Ylikärppä
- Department of General Surgery, Oulu University Hospital, and Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Taina Pihlajaniemi
- ECM-Hypoxia Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
| | - Merja Hurskainen
- Department of Ophthalmology, Oulu University Hospital, and Research Unit of Clinical Medicine, Medical Research Centre, University of Oulu, and Oulu University Hospital, Oulu, Finland
| | - Anne Heikkinen
- ECM-Hypoxia Research Unit, Faculty of Biochemistry and Molecular Medicine, University of Oulu, Oulu, Finland
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de Sousa MSA, Nunes IN, Christiano YP, Sisdelli L, Cerutti JM. Genetic alterations landscape in paediatric thyroid tumours and/or differentiated thyroid cancer: Systematic review. Rev Endocr Metab Disord 2024; 25:35-51. [PMID: 37874477 DOI: 10.1007/s11154-023-09840-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/27/2023] [Indexed: 10/25/2023]
Abstract
Differentiated thyroid cancer (DTC) is a rare disease in the paediatric population (≤ 18 years old. at diagnosis). Increasing incidence is reflected by increases in incidence for papillary thyroid carcinoma (PTC) subtypes. Compared to those of adults, despite aggressive presentation, paediatric DTC has an excellent prognosis. As for adult DTC, European and American guidelines recommend individualised management, based on the differences in clinical presentation and genetic findings. Therefore, we conducted a systematic review to identify the epidemiological landscape of all genetic alterations so far investigated in paediatric populations at diagnosis affected by thyroid tumours and/or DTC that have improved and/or informed preventive and/or curative diagnostic and prognostic clinical conduct globally. Fusions involving the gene RET followed by NTRK, ALK and BRAF, were the most prevalent rearrangements found in paediatric PTC. BRAF V600E was found at lower prevalence in paediatric (especially ≤ 10 years old) than in adults PTC. We identified TERT and RAS mutations at very low prevalence in most countries. DICER1 SNVs, while found at higher prevalence in few countries, they were found in both benign and DTC. Although the precise role of DICER1 is not fully understood, it has been hypothesised that additional genetic alterations, similar to that observed for RAS gene, might be required for the malignant transformation of these nodules. Regarding aggressiveness, fusion oncogenes may have a higher growth impact compared with BRAF V600E. We reported the shortcomings of the systematized research and outlined three key recommendations for global authors to improve and inform precision health approaches, glocally.
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Affiliation(s)
- Maria Sharmila Alina de Sousa
- Genetic Bases of Thyroid Tumours Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 11 andar, São Paulo, SP, 04039-032, Brazil
| | - Isabela Nogueira Nunes
- Genetic Bases of Thyroid Tumours Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 11 andar, São Paulo, SP, 04039-032, Brazil
| | - Yasmin Paz Christiano
- Genetic Bases of Thyroid Tumours Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 11 andar, São Paulo, SP, 04039-032, Brazil
| | - Luiza Sisdelli
- Genetic Bases of Thyroid Tumours Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 11 andar, São Paulo, SP, 04039-032, Brazil
- PreScouter Inc., 29 E Madison St #500, Chicago, IL, 60602, USA
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumours Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Pedro de Toledo 669, 11 andar, São Paulo, SP, 04039-032, Brazil.
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Al-Dahash R, Alsohaim A, Almutairi ZN, Almutairi KZ, Alharbi A, Alayed S, Almuhanna A, Alotaibi R. Risk Stratification of Differentiated Thyroid Cancer at King Abdullah Specialized Children's Hospital Endocrinology Clinic in Riyadh, Saudi Arabia. Cureus 2023; 15:e51372. [PMID: 38161535 PMCID: PMC10757736 DOI: 10.7759/cureus.51372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2023] [Indexed: 01/03/2024] Open
Abstract
Background Papillary thyroid cancer (PTC), a well-differentiated form of cancer, accounts for the majority of thyroid malignancies, and the incidence of PTC is on the rise. While the rate of PTC recurrence is considered to be low, there are broad spectrums of clinical and biological behavior that can lead to disease recurrence. The American Thyroid Association (ATA) risk stratification system for differentiated thyroid cancer is used as a prognostic tool to guide decision-making and management strategies most likely to achieve a favorable outcome. Aim This study aimed to estimate the prevalence of PTC recurrence in each category of the ATA risk stratification system and determine the appropriate iodine dose to be administered at the King Abdulaziz Medical City Endocrinology Clinic in Riyadh, Saudi Arabia. Methods A cross-sectional retrospective chart review was conducted on adult patients with PTC who underwent thyroidectomy procedures at the King Abdullah Specialized Children's Hospital (KASCH) Endocrinology Clinic in Riyadh between 2015 and 2023. IBM SPSS (Statistical Package for the Social Sciences) version 25 (IBM Corp., Armonk, NY) was used for data analysis. Results Of the 697 patients included in the study, 82.4% were females. About 5% had suffered from PTC recurrence, and 54.4% had low-risk stratification. In addition, more than half (52.1%) had received radioactive iodine (RAI). The recurrence of PTC was significantly associated with age (P = 0.019), ATA risk stratification (P = 0.0001), RAI therapy (P = 0.001), and iodine dosage (P = 0.013). Conclusion Both low PTC recurrence rates and low-risk stratification were observed among the PTC patients. The risk factors relating to PTC recurrence included high-risk stratification, advanced age, RAI therapy, and the dosage of RAI administered.
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Affiliation(s)
- Raed Al-Dahash
- Medicine, King Abdulaziz Medical City, National Guard, Riyadh, SAU
| | | | - Ziyad N Almutairi
- Internal Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Khaled Z Almutairi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Abdulkarim Alharbi
- Internal Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Sulaiman Alayed
- Internal Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Abdullah Almuhanna
- Internal Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
| | - Rayan Alotaibi
- Internal Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, SAU
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Calaf GM, Crispin LA, Roy D, Aguayo F, Muñoz JP, Bleak TC. Gene Signatures Induced by Ionizing Radiation as Prognostic Tools in an In Vitro Experimental Breast Cancer Model. Cancers (Basel) 2021; 13:4571. [PMID: 34572798 PMCID: PMC8465284 DOI: 10.3390/cancers13184571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/02/2021] [Accepted: 09/07/2021] [Indexed: 11/16/2022] Open
Abstract
This study aimed to analyze the expression of genes involved in radiation, using an Affymetrix system with an in vitro experimental breast cancer model developed by the combined treatment of low doses of high linear energy transfer (LET) radiation α particle radiation and estrogen yielding different stages in a malignantly transformed breast cancer cell model called Alpha model. Altered expression of different molecules was detected in the non-tumorigenic Alpha3, a malignant cell line transformed only by radiation and originally derived from the parental MCF-10F human cell line; that was compared with the Alpha 5 cell line, another cell line exposed to radiation and subsequently grown in the presence 17β-estradiol. This Alpha5, a tumorigenic cell line, originated the Tumor2 cell line. It can be summarized that the Alpha 3 cell line was characterized by greater gene expression of ATM and IL7R than control, Alpha5, and Tumor2 cell lines, it presented higher selenoprotein gene expression than control and Tumor2; epsin 3 gene expression was higher than control; stefin A gene expression was higher than Alpha5; and metallothionein was higher than control and Tumor2 cell line. Therefore, radiation, independently of estrogen, induced increased ATM, IL7R, selenoprotein, GABA receptor, epsin, stefin, and metallothioneins gene expression in comparison with the control. Results showed important findings of genes involved in cancers of the breast, lung, nervous system, and others. Most genes analyzed in these studies can be used for new prognostic tools and future therapies since they affect cancer progression and metastasis. Most of all, it was revealed that in the Alpha model, a breast cancer model developed by the authors, the cell line transformed only by radiation, independently of estrogen, was characterized by greater gene expression than other cell lines. Understanding the effect of radiotherapy in different cells will help us improve the clinical outcome of radiotherapies. Thus, gene signature has been demonstrated to be specific to tumor types, hence cell-dependency must be considered in future treatment planning. Molecular and clinical features affect the results of radiotherapy. Thus, using gene technology and molecular information is possible to improve therapies and reduction of side effects while providing new insights into breast cancer-related fields.
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Affiliation(s)
- Gloria M. Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile; (L.A.C.); (J.P.M.); (T.C.B.)
- Center for Radiological Research, Columbia University Medical Center, New York, NY 10032, USA
| | - Leodan A. Crispin
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile; (L.A.C.); (J.P.M.); (T.C.B.)
| | - Debasish Roy
- Department of Natural Sciences, Hostos College of the City University of New York, Bronx, NY 10451, USA;
| | - Francisco Aguayo
- Laboratorio Oncovirología, Programa de Virología, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago 8380000, Chile;
| | - Juan P. Muñoz
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile; (L.A.C.); (J.P.M.); (T.C.B.)
| | - Tammy C. Bleak
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile; (L.A.C.); (J.P.M.); (T.C.B.)
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Ory C, Leboulleux S, Salvatore D, Le Guen B, De Vathaire F, Chevillard S, Schlumberger M. Consequences of atmospheric contamination by radioiodine: the Chernobyl and Fukushima accidents. Endocrine 2021; 71:298-309. [PMID: 33025561 DOI: 10.1007/s12020-020-02498-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/07/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE After the accidents of nuclear power plants at Chernobyl and at Fukushima, huge amounts of radioactive iodine were released into the atmosphere. METHODS We reviewed data on the health consequences of these accidents with a focus on thyroid consequences. RESULTS Among the 2 million children who were living in highly contaminated regions in Belarus, Ukraine and Russia, 7000 cases of thyroid cancer had occurred in 2005. This is the most significant radiation-induced consequence of the Chernobyl accident. The increased incidence of thyroid cancer observed in adult population who lived in these highly contaminated regions is at least in major part related to screening and it is not possible to individualize among these thyroid cancers those that are potentially caused by radiation exposure. For populations who lived outside these regions at the time of the accident, there is no detectable consequence of the radiation exposure on the thyroid gland. Among children who lived nearby the Fukushima power plant in 2011, there is currently no evidence of an increased incidence of thyroid cancer. Ultrasonography screening in these individuals detected a number of thyroid cancers that are probably not related to the accident. Because thyroid cancer is frequent, studies have been carried out to distinguish radiation-induced from their sporadic counterparts, and genomic signatures might be helpful. CONCLUSIONS The consequences of the Chernobyl accident clearly demonstrate that populations living nearby a nuclear power plant should be protected in case of accident by sheltering, food restrictions and prophylaxis of thyroid irradiation by potassium iodine administration, if the predicted estimated dose to the thyroid gland of children might be >50 mGy. These countermeasures should be applied in priority to children, adolescents and pregnant women; they are safe and effective.
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Affiliation(s)
- C Ory
- CEA DRF, iBFJ, iRCM, and University Paris-Saclay, Route du Panorama, 92265, Fontenay-aux-Roses cedex, France
| | - S Leboulleux
- Gustave Roussy and University Paris-Saclay, rue Edouard Vaillant, 94800, Villejuif, France
| | - D Salvatore
- Department of Public Health, University of Naples "Federico II", Naples, Italy
| | - B Le Guen
- Electricité de France (EDF), DPNT, DPN, Site de Cap Ampère, 1 place Pleyel, 93282, Saint Denis, Cedex, France
| | - F De Vathaire
- INSERM U1018, Radiation Epidemiology Teams, 94800, Villejuif, France
| | - S Chevillard
- CEA DRF, iBFJ, iRCM, and University Paris-Saclay, Route du Panorama, 92265, Fontenay-aux-Roses cedex, France
| | - M Schlumberger
- Gustave Roussy and University Paris-Saclay, rue Edouard Vaillant, 94800, Villejuif, France.
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Selmansberger M, Michna A, Braselmann H, Höfig I, Schorpp K, Weber P, Anastasov N, Zitzelsberger H, Hess J, Unger K. Transcriptome network of the papillary thyroid carcinoma radiation marker CLIP2. Radiat Oncol 2020; 15:182. [PMID: 32727620 PMCID: PMC7392692 DOI: 10.1186/s13014-020-01620-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 07/15/2020] [Indexed: 11/29/2022] Open
Abstract
Background We present a functional gene association network of the CLIP2 gene, generated by de-novo reconstruction from transcriptomic microarray data. CLIP2 was previously identified as a potential marker for radiation induced papillary thyroid carcinoma (PTC) of young patients in the aftermath of the Chernobyl reactor accident. Considering the rising thyroid cancer incidence rates in western societies, potentially related to medical radiation exposure, the functional characterization of CLIP2 is of relevance and contributes to the knowledge about radiation-induced thyroid malignancies. Methods We generated a transcriptomic mRNA expression data set from a CLIP2-perturbed thyroid cancer cell line (TPC-1) with induced CLIP2 mRNA overexpression and siRNA knockdown, respectively, followed by gene-association network reconstruction using the partial correlation-based approach GeneNet. Furthermore, we investigated different approaches for prioritizing differentially expressed genes for network reconstruction and compared the resulting networks with existing functional interaction networks from the Reactome, Biogrid and STRING databases. The derived CLIP2 interaction partners were validated on transcript and protein level. Results The best reconstructed network with regard to selection parameters contained a set of 20 genes in the 1st neighborhood of CLIP2 and suggests involvement of CLIP2 in the biological processes DNA repair/maintenance, chromosomal instability, promotion of proliferation and metastasis. Peptidylprolyl Isomerase Like 3 (PPIL3), previously identified as a potential direct interaction partner of CLIP2, was confirmed in this study by co-expression at the transcript and protein level. Conclusion In our study we present an optimized preselection approach for genes subjected to gene-association network reconstruction, which was applied to CLIP2 perturbation transcriptome data of a thyroid cancer cell culture model. Our data support the potential carcinogenic role of CLIP2 overexpression in radiation-induced PTC and further suggest potential interaction partners of the gene.
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Affiliation(s)
- Martin Selmansberger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Agata Michna
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Herbert Braselmann
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Ines Höfig
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Kenji Schorpp
- Institute for Molecular Toxicology and Pharmacology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Peter Weber
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Natasa Anastasov
- Institute of Radiation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Horst Zitzelsberger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany.,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Julia Hess
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany.,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany
| | - Kristian Unger
- Research Unit Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany. .,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany. .,Clinical Cooperation Group 'Personalized Radiotherapy in Head and Neck Cancer', Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85764, Neuherberg, Germany.
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Hsieh CH, Chu CY, Lin SE, Yang YCS, Chang HS, Yen Y. TESC Promotes TGF-α/EGFR-FOXM1-Mediated Tumor Progression in Cholangiocarcinoma. Cancers (Basel) 2020; 12:cancers12051105. [PMID: 32365487 PMCID: PMC7281536 DOI: 10.3390/cancers12051105] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/25/2020] [Accepted: 04/26/2020] [Indexed: 02/07/2023] Open
Abstract
Cholangiocarcinoma is a relatively uncommon but highly lethal malignancy. Improving outcomes in patients depends on earlier diagnosis and appropriate treatment; however, no satisfactory diagnostic biomarkers or targeted therapies are currently available. To address this shortcoming, we analyzed the transcriptomic datasets of cholangiocarcinoma from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases and found that TESC is highly expressed in cholangiocarcinoma. Elevated cellular levels of TESC are correlated with larger tumor size and predict a poor survival outcome for patients. Knockdown of TESC via RNA interference suppresses tumor growth. RNA-sequencing analysis showed that silencing of TESC decreases the level of FOXM1, leading to cell cycle arrest. Correlation analysis revealed that the cellular level of TESC is correlated with that of FOXM1 in cholangiocarcinoma patients. We further observed that upon TGF-α induction, TESC is upregulated through the EGFR-STAT3 pathway and mediates TGF-α-induced tumor cell proliferation. In vivo experiments revealed that knockdown of TESC significantly attenuates tumor cell growth. Therefore, our data provide novel insight into TESC-mediated oncogenesis and reveal that TESC is a potential biomarker or serves as a therapeutic target for cholangiocarcinoma.
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Affiliation(s)
- Cheng-Han Hsieh
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Cheng-Ying Chu
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- CRISPR Gene Targeting Core Lab, Taipei Medical University, Taipei 110, Taiwan
| | - Sey-En Lin
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Yu-Chen S.H. Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 110, Taiwan
| | - Hung-Shu Chang
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Yun Yen
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei 110, Taiwan
- Cancer Center, Taipei Municipal Wanfang Hospital, Taipei 110, Taiwan
- Correspondence: ; Tel.: +886-2-2736-1661 (ext. 1588); Fax: +886-2-2378-7795
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Goerlitz DS, Blancato J, Ramesh A, Islam M, Graham GT, Revina V, Kallakury B, Zeck J, Kirillova E, Loffredo CA. Somatic mutation signatures in primary liver tumors of workers exposed to ionizing radiation. Sci Rep 2019; 9:18199. [PMID: 31796844 PMCID: PMC6890664 DOI: 10.1038/s41598-019-54773-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 11/18/2019] [Indexed: 01/04/2023] Open
Abstract
Liver cancer is associated with genetic mutations caused by environmental exposures, including occupational exposure to alpha radiation emitted by plutonium. We used whole exome sequencing (WES) to characterize somatic mutations in 3 histologically distinct primary liver tumors (angiosarcoma of the liver (ASL), cholangiocarcinoma (CCA) and hepatocellular carcinoma (HCC)) from Mayak worker subjects occupationally exposed to ionizing radiation (IR) to investigate the contribution of IR to the mutational landscape of liver cancer. DNA sequence analysis revealed these tumors harbor an excess of deletions, with a deletions:substitutions ratio similar to that previously reported in radiation-associated tumors. These tumors were also enriched for clustered mutations, a signature of radiation exposure. Multiple tumors displayed similarities in abrogated gene pathways including actin cytoskeletal signaling and DNA double-strand break (DSB) repair. WES identified novel candidate driver genes in ASL involved in angiogenesis and PIK3CA/AKT/mTOR signaling. We confirmed known driver genes of CCA, and identified candidate driver genes involved in chromatin remodeling. In HCC tumors we validated known driver genes, and identified novel putative driver genes involved in Wnt/β-catenin signaling, chromatin remodeling, PIK3CA/AKT/mTOR signaling, and angiogenesis. This pilot study identifies several novel candidate driver mutations that are likely to be caused by IR exposure, and provides the first data on the mutational landscape of liver cancer after IR exposure.
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Affiliation(s)
- David S Goerlitz
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Jan Blancato
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Archana Ramesh
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Md Islam
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Garrett T Graham
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Valentina Revina
- Russian Radiobiology Human Tissue Repository, Southern Urals Biophysics Institute, Ozyorsk, Chelyabinsk Oblast, Russian Federation
| | - Bhaskar Kallakury
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - Jay Zeck
- Department of Pathology, Georgetown University, Washington, District of Columbia, USA
| | - Evgeniya Kirillova
- Russian Radiobiology Human Tissue Repository, Southern Urals Biophysics Institute, Ozyorsk, Chelyabinsk Oblast, Russian Federation
| | - Christopher A Loffredo
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA.
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Liu Y, Gao S, Jin Y, Yang Y, Tai J, Wang S, Yang H, Chu P, Han S, Lu J, Ni X, Yu Y, Guo Y. Bioinformatics analysis to screen key genes in papillary thyroid carcinoma. Oncol Lett 2019; 19:195-204. [PMID: 31897130 PMCID: PMC6924100 DOI: 10.3892/ol.2019.11100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 09/24/2019] [Indexed: 12/18/2022] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common type of thyroid carcinoma, and its incidence has been on the increase in recent years. However, the molecular mechanism of PTC is unclear and misdiagnosis remains a major issue. Therefore, the present study aimed to investigate this mechanism, and to identify key prognostic biomarkers. Integrated analysis was used to explore differentially expressed genes (DEGs) between PTC and healthy thyroid tissue. To investigate the functions and pathways associated with DEGs, Gene Ontology, pathway and protein-protein interaction (PPI) network analyses were performed. The predictive accuracy of DEGs was evaluated using the receiver operating characteristic (ROC) curve. Based on the four microarray datasets obtained from the Gene Expression Omnibus database, namely GSE33630, GSE27155, GSE3467 and GSE3678, a total of 153 DEGs were identified, including 66 upregulated and 87 downregulated DEGs in PTC compared with controls. These DEGs were significantly enriched in cancer-related pathways and the phosphoinositide 3-kinase-AKT signaling pathway. PPI network analysis screened out key genes, including acetyl-CoA carboxylase beta, cyclin D1, BCL2, and serpin peptidase inhibitor clade A member 1, which may serve important roles in PTC pathogenesis. ROC analysis revealed that these DEGs had excellent predictive performance, thus verifying their potential for clinical diagnosis. Taken together, the findings of the present study suggest that these genes and related pathways are involved in key events of PTC progression and facilitate the identification of prognostic biomarkers.
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Affiliation(s)
- Yuanhu Liu
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Shuwei Gao
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Yaqiong Jin
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Yeran Yang
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Jun Tai
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Shengcai Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Hui Yang
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Ping Chu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Shujing Han
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Jie Lu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Xin Ni
- Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China.,Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Yongbo Yu
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
| | - Yongli Guo
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, MOE Key Laboratory of Major Diseases in Children, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, P.R. China
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10
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Exploring the roles of MACIT and multiplexin collagens in stem cells and cancer. Semin Cancer Biol 2019; 62:134-148. [PMID: 31479735 DOI: 10.1016/j.semcancer.2019.08.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/20/2019] [Accepted: 08/30/2019] [Indexed: 02/07/2023]
Abstract
The extracellular matrix (ECM) is ubiquitously involved in neoplastic transformation, tumour growth and metastatic dissemination, and the interplay between tumour and stromal cells and the ECM is now considered crucial for the formation of a tumour-supporting microenvironment. The 28 different collagens (Col) form a major ECM protein family and display extraordinary functional diversity in tissue homeostasis as well as in pathological conditions, with functions ranging from structural support for tissues to regulatory binding activities and storage of biologically active cryptic domains releasable through ECM proteolysis. Two subfamilies of collagens, namely the plasma membrane-associated collagens with interrupted triple-helices (MACITs, including ColXIII, ColXXIII and ColXXV) and the basement membrane-associated collagens with multiple triple-helix domains with interruptions (multiplexins, including ColXV and ColXVIII), have highly interesting regulatory functions in tissue and organ development, as well as in various diseases, including cancer. An increasing, albeit yet sparse, data suggest that these collagens play crucial roles in conveying regulatory signals from the extracellular space to cells. We summarize here the current knowledge about MACITs and multiplexins as regulators of stemness and oncogenic processes, as well as their roles in influencing cell fate decisions in healthy and cancerous tissues. In addition, we present a bioinformatic analysis of the impacts of MACITs and multiplexins transcript levels on the prognosis of patients representing a wide array of malignant diseases, to aid future diagnostic and therapeutic efforts.
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11
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Chen C, Shin JH, Eggold JT, Chung MK, Zhang LH, Lee J, Sunwoo JB. ESM1 mediates NGFR-induced invasion and metastasis in murine oral squamous cell carcinoma. Oncotarget 2018; 7:70738-70749. [PMID: 27683113 PMCID: PMC5342586 DOI: 10.18632/oncotarget.12210] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/02/2016] [Indexed: 02/05/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) is a highly invasive and metastatic malignancy. The nerve growth factor receptor (NGFR) has been observed to be expressed on a subset of cells in OSCC, and NGFR+ cells have greater tumor-initiating capacity in vivo. Further, inhibition of NGFR reduces tumor growth, indicating a functional role of this receptor; however, the mechanisms by which NGFR confers enhanced tumor formation are not known. Here, we used an established murine model of OSCC and gene expression array analysis to identify ESM1 as a downstream target gene of NGFR, critical for tumor invasion and metastasis. ESM1 encodes a protein called endocan, which has the property of regulating proliferation, differentiation, migration, and adhesion of different cell types. Incubation of NGFR+ murine OSCC cells with nerve growth factor resulted in increased expression of ESM1. Importantly, ESM1 overexpression conferred an enhanced migratory, invasive, and metastatic phenotype, similar to what has been correlated with NGFR expression. Conversely, shRNA knockdown of ESM1 in NGFR overexpressing OSCC cells abrogated the tumor growth kinetics and the invasive and metastatic properties associated with NGFR. Together, our data indicate that NGFR plays an important role in the pathogenesis and progression of OSCC via regulation of ESM1.
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Affiliation(s)
- Chen Chen
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.,Department of Otolaryngology Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, P.R. China
| | - June Ho Shin
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Joshua T Eggold
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.,Graduate Program in Cancer Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Man Ki Chung
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.,Department of Otorhinolaryngology, Head & Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Sungkyunkwan, Korea
| | - Luhua H Zhang
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jeremy Lee
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - John B Sunwoo
- Division of Head and Neck Surgery, Department of Otolaryngology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94305, USA.,Graduate Program in Cancer Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
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12
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Radiation and Thyroid Cancer. Int J Mol Sci 2017; 18:ijms18050911. [PMID: 28445397 PMCID: PMC5454824 DOI: 10.3390/ijms18050911] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/11/2017] [Accepted: 04/24/2017] [Indexed: 01/18/2023] Open
Abstract
Radiation-induced damage is a complex network of interlinked signaling pathways, which may result in apoptosis, cell cycle arrest, DNA repair, and cancer. The development of thyroid cancer in response to radiation, from nuclear catastrophes to chemotherapy, has long been an object of study. A basic overview of the ionizing and non-ionizing radiation effects of the sensitivity of the thyroid gland on radiation and cancer development has been provided. In this review, we focus our attention on experiments in cell cultures exposed to ionizing radiation, ultraviolet light, and proton beams. Studies on the involvement of specific genes, proteins, and lipids are also reported. This review also describes how lipids are regulated in response to the radiation-induced damage and how they are involved in thyroid cancer etiology, invasion, and migration and how they can be used as both diagnostic markers and drug targets.
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13
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Iglesias ML, Schmidt A, Ghuzlan AA, Lacroix L, Vathaire FD, Chevillard S, Schlumberger M. Radiation exposure and thyroid cancer: a review. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2017; 61:180-187. [PMID: 28225863 PMCID: PMC10118869 DOI: 10.1590/2359-3997000000257] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/31/2016] [Indexed: 11/21/2022]
Abstract
The association between radiation exposure and the occurrence of thyroid cancer has been well documented, and the two main risk factors for the development of a thyroid cancer are the radiation dose delivered to the thyroid gland and the age at exposure. The risk increases after exposure to a mean dose of more than 0.05-0.1 Gy (50-100mGy). The risk is more important during childhood and decreases with increased age at exposure, being low in adults. After exposure, the minimum latency period before the appearance of thyroid cancers is 5 to 10 years. Papillary carcinoma (PTC) is the most frequent form of thyroid carcinoma diagnosed after radiation exposure, with a higher prevalence of the solid subtype in young children with a short latency period and of the classical subtype in cases with a longer latency period after exposure. Molecular alterations, including intra-chromosomal rearrangements, are frequently found. Among them, RET/PTC rearrangements are the most frequent. Current research is directed on the mechanism of genetic alterations induced by radiation and on a molecular signature that can identify the origin of thyroid carcinoma after a known or suspected exposure to radiation.
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Affiliation(s)
| | - Angelica Schmidt
- Division of Endocrinology, Hospital de Clínicas, University of Buenos Aires. Buenos Aires, Argentina
| | - Abir Al Ghuzlan
- Institut Gustave Roussy, Université Paris-Sud, Villejuif, France
| | - Ludovic Lacroix
- Institut Gustave Roussy, Université Paris-Sud, Villejuif, France
| | - Florent de Vathaire
- Institut Gustave Roussy, Université Paris-Sud, Villejuif, France.,Cancer and Radiation Team, INSERM Unit 1018, Villejuif, France
| | - Sylvie Chevillard
- CEA, Institute of Cellular and Molecular Radiobiology, Laboratory of Experimental Cancerology, CEA, Fontenay-aux-Roses, France
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14
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Bang HS, Choi MH, Kim CS, Choi SJ. Gene expression profiling in undifferentiated thyroid carcinoma induced by high-dose radiation. JOURNAL OF RADIATION RESEARCH 2016; 57:238-49. [PMID: 27006382 PMCID: PMC4915541 DOI: 10.1093/jrr/rrw002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 12/26/2015] [Indexed: 05/07/2023]
Abstract
Published gene expression studies for radiation-induced thyroid carcinogenesis have used various methodologies. In this study, we identified differential gene expression in a human thyroid epithelial cell line after exposure to high-dose γ-radiation. HTori-3 cells were exposed to 5 or 10 Gy of ionizing radiation using two dose rates (high-dose rate: 4.68 Gy/min, and low-dose rate: 40 mGy/h) and then implanted into the backs of BALB/c nude mice after 4 (10 Gy) or 5 weeks (5 Gy). Decreases in cell viability, increases in giant cell frequency, anchorage-independent growth in vitro, and tumorigenicity in vivo were observed. Particularly, the cells irradiated with 5 Gy at the high-dose rate or 10 Gy at the low-dose rate demonstrated more prominent tumorigenicity. Gene expression profiling was analyzed via microarray. Numerous genes that were significantly altered by a fold-change of >50% following irradiation were identified in each group. Gene expression analysis identified six commonly misregulated genes, including CRYAB, IL-18, ZNF845, CYP24A1, OR4N4 and VN1R4, at all doses. These genes involve apoptosis, the immune response, regulation of transcription, and receptor signaling pathways. Overall, the altered genes in high-dose rate (HDR) 5 Gy and low-dose rate (LDR) 10 Gy were more than those of LDR 5 Gy and HDR 10 Gy. Thus, we investigated genes associated with aggressive tumor development using the two dosage treatments. In this study, the identified gene expression profiles reflect the molecular response following high doses of external radiation exposure and may provide helpful information about radiation-induced thyroid tumors in the high-dose range.
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Affiliation(s)
- Hyun Soon Bang
- Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, 132703, Korea
| | - Moo Hyun Choi
- Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, 132703, Korea
| | - Cha Soon Kim
- Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, 132703, Korea
| | - Seung Jin Choi
- Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd., Seoul, 132703, Korea
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15
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Handkiewicz-Junak D, Swierniak M, Rusinek D, Oczko-Wojciechowska M, Dom G, Maenhaut C, Unger K, Detours V, Bogdanova T, Thomas G, Likhtarov I, Jaksik R, Kowalska M, Chmielik E, Jarzab M, Swierniak A, Jarzab B. Gene signature of the post-Chernobyl papillary thyroid cancer. Eur J Nucl Med Mol Imaging 2016; 43:1267-77. [PMID: 26810418 PMCID: PMC4869750 DOI: 10.1007/s00259-015-3303-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 12/29/2015] [Indexed: 11/29/2022]
Abstract
Purpose Following the nuclear accidents in Chernobyl and later in Fukushima, the nuclear community has been faced with important issues concerning how to search for and diagnose biological consequences of low-dose internal radiation contamination. Although after the Chernobyl accident an increase in childhood papillary thyroid cancer (PTC) was observed, it is still not clear whether the molecular biology of PTCs associated with low-dose radiation exposure differs from that of sporadic PTC. Methods We investigated tissue samples from 65 children/young adults with PTC using DNA microarray (Affymetrix, Human Genome U133 2.0 Plus) with the aim of identifying molecular differences between radiation-induced (exposed to Chernobyl radiation, ECR) and sporadic PTC. All participants were resident in the same region so that confounding factors related to genetics or environment were minimized. Results There were small but significant differences in the gene expression profiles between ECR and non-ECR PTC (global test, p < 0.01), with 300 differently expressed probe sets (p < 0.001) corresponding to 239 genes. Multifactorial analysis of variance showed that besides radiation exposure history, the BRAF mutation exhibited independent effects on the PTC expression profile; the histological subset and patient age at diagnosis had negligible effects. Ten genes (PPME1, HDAC11, SOCS7, CIC, THRA, ERBB2, PPP1R9A, HDGF, RAD51AP1, and CDK1) from the 19 investigated with quantitative RT-PCR were confirmed as being associated with radiation exposure in an independent, validation set of samples. Conclusion Significant, but subtle, differences in gene expression in the post-Chernobyl PTC are associated with previous low-dose radiation exposure. Electronic supplementary material The online version of this article (doi:10.1007/s00259-015-3303-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daria Handkiewicz-Junak
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Michal Swierniak
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland.,Genomic Medicine, Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw, Poland
| | - Dagmara Rusinek
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Małgorzata Oczko-Wojciechowska
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Genevieve Dom
- Institute of Interdisciplinary Research, Université libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Carine Maenhaut
- Institute of Interdisciplinary Research, Université libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Kristian Unger
- Human Cancer Studies Group, Division of Surgery and Cancer, Imperial College London Hammersmith Hospital, London, UK.,Research Unit Radiation Cytogenetics, Helmholtz-Zentrum, Munich, Germany
| | - Vincent Detours
- Institute of Interdisciplinary Research, Université libre de Bruxelles (ULB), Bruxelles, Belgium
| | | | - Geraldine Thomas
- Human Cancer Studies Group, Division of Surgery and Cancer, Imperial College London Hammersmith Hospital, London, UK
| | - Ilya Likhtarov
- Radiation Protection Institute, Academy of Technological Sciences of Ukraine, Kiev, Ukraine
| | - Roman Jaksik
- Systems Engineering Group, Faculty of Automatic Control, Electronics and Informatics, Silesian University of Technology, Gliwice, Poland
| | - Malgorzata Kowalska
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland
| | - Ewa Chmielik
- Department of Tumour Pathology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Michal Jarzab
- IIIrd Department of Radiation Therapy, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Andrzej Swierniak
- Department of Automatic Control, Silesian University of Technology, Gliwice, Poland
| | - Barbara Jarzab
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101, Gliwice, Poland.
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Selmansberger M, Kaiser JC, Hess J, Güthlin D, Likhtarev I, Shpak V, Tronko M, Brenner A, Abend M, Blettner M, Unger K, Jacob P, Zitzelsberger H. Dose-dependent expression of CLIP2 in post-Chernobyl papillary thyroid carcinomas. Carcinogenesis 2015; 36:748-56. [PMID: 25957251 PMCID: PMC4496450 DOI: 10.1093/carcin/bgv043] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 03/25/2015] [Indexed: 11/24/2022] Open
Abstract
This study showed a clear dose-response relationship for the CLIP2 radiation marker in post-Chernobyl papillary thyroid carcinoma cohorts for young patients and hints to different molecular mechanisms in tumors induced at low doses compared to moderate/high doses. A previous study on papillary thyroid carcinomas (PTC) in young patients who were exposed to 131iodine from the Chernobyl fallout revealed an exclusive gain of chromosomal band 7q11.23 in exposed cases compared to an age-matched control cohort. CLIP2, a gene located within band 7q11.23 was shown to be differentially expressed between exposed and non-exposed cases at messenger RNA and protein level. Therefore, a standardized procedure for CLIP2 typing of PTCs has been developed in a follow-up study. Here we used CLIP2 typing data on 117 post-Chernobyl PTCs from two cohorts of exposed patients with individual dose estimates and 24 non-exposed controls to investigate a possible quantitative dose-response relationship of the CLIP2 marker. The ‘Genrisk-T’ cohort consisted of 45 PTCs and the ‘UkrAm’ cohort of 72 PTCs. Both cohorts differed in mean dose (0.59 Gy Genrisk-T, 1.2 Gy UkrAm) and mean age at exposure (AaE) (2 years Genrisk-T, 8 years UkrAm), whilst the median latency (16 years Genrisk-T, 18 years UkrAm) was comparable. We analyzed the association between the binary CLIP2 typing and continuous thyroid dose with logistic regression. A clear positive dose-response relationship was found for young PTC cases [age at operation (AaO) < 20 years, AaE < 5 years]. In the elder age group a higher proportion of sporadic tumors is assumed due to a negligible dose response, suggesting different molecular mechanisms in sporadic and radiation-induced cases. This is further supported by the association of elder patients (AaO > 20 years) with positivity for BRAF V600E mutation.
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Affiliation(s)
| | - Jan Christian Kaiser
- Institute of Radiation Protection, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85674 Neuherberg, Germany,
| | - Julia Hess
- Research Unit Radiation Cytogenetics and
| | - Denise Güthlin
- Institute of Radiation Protection, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85674 Neuherberg, Germany
| | - I Likhtarev
- Radiation Protection Institute, Ukrainian Academy of Technological Sciences, 04050 Kyiv, Ukraine
| | - Victor Shpak
- Institute of Endocrinology and Metabolism, National Academy of Medical Sciences of the Ukraine, 254114 Kyiv, Ukraine
| | - Mykola Tronko
- Institute of Endocrinology and Metabolism, National Academy of Medical Sciences of the Ukraine, 254114 Kyiv, Ukraine
| | - Alina Brenner
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, NCI, Bethesda, MD 20892, USA
| | - Michael Abend
- Bundeswehr Institute of Radiobiology, 80937 Munich, Germany and
| | - Maria Blettner
- Institut für Medizinische Biometrie, Epidemiologie und Informatik (IMBEI), Johannes Gutenberg Universität, 55131 Mainz, Germany
| | | | - Peter Jacob
- Institute of Radiation Protection, Helmholtz Zentrum München, German Research Center for Environmental Health GmbH, 85674 Neuherberg, Germany
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17
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Suzuki K, Mitsutake N, Saenko V, Yamashita S. Radiation signatures in childhood thyroid cancers after the Chernobyl accident: possible roles of radiation in carcinogenesis. Cancer Sci 2015; 106:127-33. [PMID: 25483826 PMCID: PMC4399027 DOI: 10.1111/cas.12583] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 11/26/2014] [Accepted: 11/30/2014] [Indexed: 12/11/2022] Open
Abstract
After the Tokyo Electric Power Company Fukushima Daiichi nuclear power plant accident, cancer risk from low-dose radiation exposure has been deeply concerning. The linear no-threshold model is applied for the purpose of radiation protection, but it is a model based on the concept that ionizing radiation induces stochastic oncogenic alterations in the target cells. As the elucidation of the mechanism of radiation-induced carcinogenesis is indispensable to justify the concept, studies aimed at the determination of molecular changes associated with thyroid cancers among children who suffered effects from the Chernobyl nuclear accident will be overviewed. We intend to discuss whether any radiation signatures are associated with radiation-induced childhood thyroid cancers.
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Affiliation(s)
- Keiji Suzuki
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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18
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Ory C, Ugolin N, Hofman P, Schlumberger M, Likhtarev IA, Chevillard S. Comparison of transcriptomic signature of post-Chernobyl and postradiotherapy thyroid tumors. Thyroid 2013; 23:1390-400. [PMID: 23521174 DOI: 10.1089/thy.2012.0318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND We previously identified two highly discriminating and predictive radiation-induced transcriptomic signatures by comparing series of sporadic and postradiotherapy thyroid tumors (322-gene signature), and by reanalyzing a previously published data set of sporadic and post-Chernobyl thyroid tumors (106-gene signature). The aim of the present work was (i) to compare the two signatures in terms of gene expression deregulations and molecular features/pathways, and (ii) to test the capacity of the postradiotherapy signature in classifying the post-Chernobyl series of tumors and reciprocally of the post-Chernobyl signature in classifying the postradiotherapy-induced tumors. METHODS We now explored if postradiotherapy and post-Chernobyl papillary thyroid carcinomas (PTC) display common molecular features by comparing molecular pathways deregulated in the two tumor series, and tested the potential of gene subsets of the postradiotherapy signature to classify the post-Chernobyl series (14 sporadic and 12 post-Chernobyl PTC), and reciprocally of gene subsets of the post-Chernobyl signature to classify the postradiotherapy series (15 sporadic and 12 postradiotherapy PTC), by using conventional principal component analysis. RESULTS We found that the five genes common to the two signatures classified the learning/training tumors (used to search these signatures) of both the postradiotherapy (seven PTC) and the post-Chernobyl (six PTC) thyroid tumor series as compared with the sporadic tumors (seven sporadic PTC in each series). Importantly, these five genes were also effective for classifying independent series of postradiotherapy (five PTC) and post-Chernobyl (six PTC) tumors compared to independent series of sporadic tumors (eight PTC and six PTC respectively; testing tumors). Moreover, part of each postradiotherapy (32 genes) and post-Chernobyl signature (16 genes) cross-classified the respective series of thyroid tumors. Finally, several molecular pathways deregulated in post-Chernobyl tumors matched those found to be deregulated in postradiotherapy tumors. CONCLUSIONS Overall, our data suggest that thyroid tumors that developed following either external exposure or internal (131)I contamination shared common molecular features, related to DNA repair, oxidative and endoplasmic reticulum stresses, allowing their classification as radiation-induced tumors in comparison with sporadic counterparts, independently of doses and dose rates, which suggests there may be a "general" radiation-induced signature of thyroid tumors.
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Affiliation(s)
- Catherine Ory
- 1 Laboratory of Experimental Oncology, Institute of Cellular and Molecular Radiation Biology (IRCM), Directorate of Life Sciences (DSV), Commission for Atomic Energy and Alternative Energies (CEA), Fontenay-aux-Roses, France
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Abend M, Pfeiffer RM, Ruf C, Hatch M, Bogdanova TI, Tronko MD, Hartmann J, Meineke V, Mabuchi K, Brenner AV. Iodine-131 dose-dependent gene expression: alterations in both normal and tumour thyroid tissues of post-Chernobyl thyroid cancers. Br J Cancer 2013; 109:2286-94. [PMID: 24045656 PMCID: PMC3798970 DOI: 10.1038/bjc.2013.574] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 08/28/2013] [Accepted: 08/28/2013] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND A strong, consistent association between childhood irradiation and subsequent thyroid cancer provides an excellent model for studying radiation carcinogenesis. METHODS We evaluated gene expression in 63 paired RNA specimens from frozen normal and tumour thyroid tissues with individual iodine-131 (I-131) doses (0.008-8.6 Gy, no unirradiated controls) received from Chernobyl fallout during childhood (Ukrainian-American cohort). Approximately half of these randomly selected samples (32 tumour/normal tissue RNA specimens) were hybridised on 64 whole-genome microarrays (Agilent, 4 × 44 K). Associations between I-131 dose and gene expression were assessed separately in normal and tumour tissues using Kruskal-Wallis and linear trend tests. Of 155 genes significantly associated with I-131 after Bonferroni correction and with ≥2-fold increase per dose category, we selected 95 genes. On the remaining 31 RNA samples these genes were used for validation purposes using qRT-PCR. RESULTS Expression of eight genes (ABCC3, C1orf9, C6orf62, FGFR1OP2, HEY2, NDOR1, STAT3, and UCP3) in normal tissue and six genes (ANKRD46, CD47, HNRNPH1, NDOR1, SCEL, and SERPINA1) in tumour tissue was significantly associated with I-131. PANTHER/DAVID pathway analyses demonstrated significant over-representation of genes coding for nucleic acid binding in normal and tumour tissues, and for p53, EGF, and FGF signalling pathways in tumour tissue. CONCLUSION The multistep process of radiation carcinogenesis begins in histologically normal thyroid tissue and may involve dose-dependent gene expression changes.
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Affiliation(s)
- M Abend
- Bundeswehr Institute of Radiobiology, Neuherbergstr. 11, 80937 Munich, Germany
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20
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van Santen HM, Tytgat GAM, van de Wetering MD, van Eck-Smit BLF, Hopman SMJ, van der Steeg AF, Nieveen van Dijkum EJM, van Trotsenburg ASP. Response to teszler. Thyroid 2013. [PMID: 23185983 DOI: 10.1089/thy.2012.0149.rs] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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21
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Teszler CB. Differentiated thyroid carcinoma after iodine-131 metaiodobenzylguanidine treatment for neuroblastoma: assessment of causality. Thyroid 2013; 23:248-9. [PMID: 22946503 DOI: 10.1089/thy.2012.0149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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22
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Schlumberger M, Le Guen B. [Nuclear-power-plant accidents: thyroid cancer incidence and radiation-related health effects from the Chernobyl accident]. Med Sci (Paris) 2012; 28:746-56. [PMID: 22920877 DOI: 10.1051/medsci/2012288017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Following the Chernobyl accident, enormous amounts of radioisotopes were released in the atmosphere and have contaminated surrounding populations in the absence of rapid protective countermeasures. The highest radiation doses were delivered to the thyroid gland, and the only direct consequence of radiation exposure observed among contaminated population is the increased incidence of thyroid cancers among subjects who were children in 1986 and who lived at that time in Belarus, Ukraine or Russia.
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Affiliation(s)
- Martin Schlumberger
- Université Paris-Sud, service de médecine nucléaire et cancérologie endocrinienne, Institut Gustave Roussy, 94805 Villejuif Cedex, France.
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23
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Port M, Seidl C, Ruf CG, Riecke A, Meineke V, Abend M. Reliable and sample saving gene expression analysis approach for diagnostic tool development. HEALTH PHYSICS 2012; 103:159-168. [PMID: 22951474 DOI: 10.1097/hp.0b013e31824ac318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work answers the question of whether it is necessary to hybridize individual instead of pooled RNA samples on microarrays for screening gene targets suitable as diagnostic tools for radiation exposure scenarios, while at the same time meeting comparable microarray quality criteria. For developing new clinical diagnostic tools, a two-stage study design was employed in five projects. At first, pooled and not individual RNA samples were hybridized on microarrays for screening purposes. Potential gene candidates were selected based on their fold-change only. This was followed by a validation/quantification step using individual RNA samples and quantitative RT-PCR. Quality criteria from the screening approach with pooled RNA samples were compared with published data from the MicroArray Quality Control (MAQC) consortium that hybridized each reference RNA sample separately and established quality criteria for microarrays. When comparing both approaches, only insignificant differences for quality criteria such as false positives, sensitivity, specificity, and overall agreement were found. However, material, costs, and time were drastically reduced when hybridizing pooled RNA and gene targets applicable for clinical diagnostic purposes could be successfully selected. In search of new diagnostic tools for radiation exposure scenarios, the two stage study design using either pooled or individual RNA samples on microarrays shows comparable quality criteria, but the RNA pooling approach saves unique material, costs, and efforts and successfully selects gene targets that can be used for the desired diagnostic purposes.
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Affiliation(s)
- Matthias Port
- Clinic for Hematology, Hemostaseology, Oncology and Stem CellTransplantation, Hannover Medical School, Hannover, Germany.
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24
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Abend M, Pfeiffer RM, Ruf C, Hatch M, Bogdanova TI, Tronko MD, Riecke A, Hartmann J, Meineke V, Boukheris H, Sigurdson AJ, Mabuchi K, Brenner AV. Iodine-131 dose dependent gene expression in thyroid cancers and corresponding normal tissues following the Chernobyl accident. PLoS One 2012; 7:e39103. [PMID: 22848350 PMCID: PMC3405097 DOI: 10.1371/journal.pone.0039103] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Accepted: 05/16/2012] [Indexed: 11/18/2022] Open
Abstract
The strong and consistent relationship between irradiation at a young age and subsequent thyroid cancer provides an excellent model for studying radiation carcinogenesis in humans. We thus evaluated differential gene expression in thyroid tissue in relation to iodine-131 (I-131) doses received from the Chernobyl accident. Sixty three of 104 papillary thyroid cancers diagnosed between 1998 and 2008 in the Ukrainian-American cohort with individual I-131 thyroid dose estimates had paired RNA specimens from fresh frozen tumor (T) and normal (N) tissue provided by the Chernobyl Tissue Bank and satisfied quality control criteria. We first hybridized 32 randomly allocated RNA specimen pairs (T/N) on 64 whole genome microarrays (Agilent, 4×44 K). Associations of differential gene expression (log2(T/N)) with dose were assessed using Kruskall-Wallis and trend tests in linear mixed regression models. While none of the genes withstood correction for the false discovery rate, we selected 75 genes with a priori evidence or P kruskall/P trend <0.0005 for validation by qRT-PCR on the remaining 31 RNA specimen pairs (T/N). The qRT-PCR data were analyzed using linear mixed regression models that included radiation dose as a categorical or ordinal variable. Eleven of 75 qRT-PCR assayed genes (ACVR2A, AJAP1, CA12, CDK12, FAM38A, GALNT7, LMO3, MTA1, SLC19A1, SLC43A3, ZNF493) were confirmed to have a statistically significant differential dose-expression relationship. Our study is among the first to provide direct human data on long term differential gene expression in relation to individual I-131 doses and to identify a set of genes potentially important in radiation carcinogenesis.
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Affiliation(s)
- Michael Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany.
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25
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A gene expression signature distinguishes normal tissues of sporadic and radiation-induced papillary thyroid carcinomas. Br J Cancer 2012; 107:994-1000. [PMID: 22828612 PMCID: PMC3464765 DOI: 10.1038/bjc.2012.302] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Background: Papillary thyroid cancer (PTC) incidence increased dramatically in children after the Chernobyl accident, providing a unique opportunity to investigate the molecular features of radiation-induced thyroid cancer. In contrast to the previous studies that included age-related confounding factors, we investigated mRNA expression in PTC and in the normal contralateral tissues of patients exposed and non-exposed to the Chernobyl fallout, using age- and ethnicity-matched non-irradiated cohorts. Methods: Forty-five patients were analysed by full-genome mRNA microarrays. Twenty-two patients have been exposed to the Chernobyl fallout; 23 others were age-matched and resident in the same regions of Ukraine, but were born after 1 March 1987, that is, were not exposed to 131I. Results: A gene expression signature of 793 probes corresponding to 403 genes that permitted differentiation between normal tissues from patients exposed and from those who were not exposed to radiation was identified. The differences were confirmed by quantitative RT-PCR. Many deregulated pathways in the exposed normal tissues are related to cell proliferation. Conclusion: Our results suggest that a higher proliferation rate in normal thyroid could be related to radiation-induced cancer either as a predisposition or as a consequence of radiation. The signature allows the identification of radiation-induced thyroid cancers.
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26
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Ory C, Ugolin N, Schlumberger M, Hofman P, Chevillard S. Discriminating gene expression signature of radiation-induced thyroid tumors after either external exposure or internal contamination. Genes (Basel) 2011; 3:19-34. [PMID: 24704841 PMCID: PMC3899964 DOI: 10.3390/genes3010019] [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: 11/03/2011] [Revised: 12/06/2011] [Accepted: 12/09/2011] [Indexed: 01/02/2023] Open
Abstract
Both external radiation exposure and internal radionuclide contamination are well known risk factors in the development of thyroid epithelial tumors. The identification of specific molecular markers deregulated in radiation-induced thyroid tumors is important for the etiological diagnosis since neither histological features nor genetic alterations can discriminate between sporadic and radiation-induced tumors. Identification of highly discriminating markers in radiation-induced tumors is challenging as it relies on the ability to identify marker deregulation which is associated with a cellular stress that occurred many years before in the thyroid cells. The existence of such a signature is still controversial, as it was not found in several studies while a highly discriminating signature was found in both post-radiotherapy and post-Chernobyl series in other studies. Overall, published studies searching for radiation-induced thyroid tumor specificities, using transcriptomic, proteomic and comparative genomic hybridization approaches, and bearing in mind the analytical constraints required to analyze such small series of tumors, suggest that such a molecular signature could be found. In comparison with sporadic tumors, we highlight molecular similarities and specificities in tumors occurring after high-dose external radiation exposure, such as radiotherapy, and in post-Chernobyl tumors that occurred after internal 131I contamination. We discuss the relevance of signature extrapolation from series of tumors developing after high and low doses in the identification of tumors induced at very low doses of radiation.
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Affiliation(s)
- Catherine Ory
- CEA, DSV, IRCM, SREIT, Laboratoire de Cancérologie Expérimentale, BP6, Fontenay-aux-Roses, F-92265, France.
| | - Nicolas Ugolin
- CEA, DSV, IRCM, SREIT, Laboratoire de Cancérologie Expérimentale, BP6, Fontenay-aux-Roses, F-92265, France.
| | - Martin Schlumberger
- Institut Gustave Roussy, Department on Nuclear Medicine and Endocrine Oncology, Villejuif, and University Paris-Sud, F-94800, France.
| | | | - Sylvie Chevillard
- CEA, DSV, IRCM, SREIT, Laboratoire de Cancérologie Expérimentale, BP6, Fontenay-aux-Roses, F-92265, France.
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Abou-El-Ardat K, Monsieurs P, Anastasov N, Atkinson M, Derradji H, De Meyer T, Bekaert S, Van Criekinge W, Baatout S. Low dose irradiation of thyroid cells reveals a unique transcriptomic and epigenetic signature in RET/PTC-positive cells. Mutat Res 2011; 731:27-40. [PMID: 22027090 DOI: 10.1016/j.mrfmmm.2011.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 09/20/2011] [Accepted: 10/13/2011] [Indexed: 11/28/2022]
Abstract
The high doses of radiation received in the wake of the Chernobyl incident and the atomic bombing of Hiroshima and Nagasaki have been linked to the increased appearance of thyroid cancer in the children living in the vicinity of the site. However, the data gathered on the effect of low doses of radiation on the thyroid remain limited. We have examined the genome wide transcriptional response of a culture of TPC-1 human cell line of papillary thyroid carcinoma origin with a RET/PTC1 translocation to various doses (0.0625, 0.5, and 4Gy) of X-rays and compared it to response of thyroids with a RET/PTC3 translocation and against wild-type mouse thyroids irradiated with the same doses using Affymetrix microarrays. We have found considerable overlap at a high dose of 4Gy in both RET/PTC-positive systems but no common genes at 62.5mGy. In addition, the response of RET/PTC-positive system at all doses was distinct from the response of wild-type thyroids with both systems signaling down different pathways. Analysis of the response of microRNAs in TPC-1 cells revealed a radiation-responsive signature of microRNAs in addition to dose-responsive microRNAs. Our results point to the fact that a low dose of X-rays seems to have a significant proliferative effect on normal thyroids. This observation should be studied further as opposed to its effect on RET/PTC-positive thyroids which was subtle, anti-proliferative and system-dependent.
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Schlumberger M, Chevillard S, Ory K, Dupuy C, Le Guen B, de Vathaire F. Cancer de la thyroïde après exposition aux rayonnements ionisants. Cancer Radiother 2011; 15:394-9. [DOI: 10.1016/j.canrad.2011.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 05/04/2011] [Indexed: 10/18/2022]
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Gain of chromosome band 7q11 in papillary thyroid carcinomas of young patients is associated with exposure to low-dose irradiation. Proc Natl Acad Sci U S A 2011; 108:9595-600. [PMID: 21606360 DOI: 10.1073/pnas.1017137108] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The main consequence of the Chernobyl accident has been an increase in papillary thyroid carcinomas (PTCs) in those exposed to radioactive fallout as young children. Our aim was to identify genomic alterations that are associated with exposure to radiation. We used array comparative genomic hybridization to analyze a main (n = 52) and a validation cohort (n = 28) of PTC from patients aged <25 y at operation and matched for age at diagnosis and residency. Both cohorts consisted of patients exposed and not exposed to radioiodine fallout. The study showed association of a gain on chromosome 7 (7q11.22-11.23) with exposure (false discovery rate = 0.035). Thirty-nine percent of the exposed group showed the alteration; however, it was not found in a single case from the unexposed group. This was confirmed in the validation set. Because only a subgroup of cases in the exposed groups showed gain of 7q11.22-11.23, it is likely that different molecular subgroups and routes of radiation-induced carcinogenesis exist. The candidate gene CLIP2 was specifically overexpressed in the exposed cases. In addition, the expression of the genes PMS2L11, PMS2L3, and STAG3L3 correlated with gain of 7q11.22-11.23. An enrichment of Gene Ontology terms "DNA repair" (PMS2L3, PMS2L5), "response to DNA damage stimulus" (BAZ1B, PMS2L3, PMS2L5, RFC2), and "cell-cell adhesion" (CLDN3, CLDN4) was found. This study, using matched exposed and unexposed cohorts, provides insights into the radiation-related carcinogenesis of young-onset PTC and, with the exposure-specific gain of 7q11 and overexpression of the CLIP2 gene, radiation-specific molecular markers.
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30
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Gene Expression Profiles for Radiation-induced Thyroid Cancer. Clin Oncol (R Coll Radiol) 2011; 23:282-8. [DOI: 10.1016/j.clon.2011.01.509] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 01/28/2011] [Indexed: 11/23/2022]
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31
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Hadj-Hamou NS, Ugolin N, Ory C, Britzen-Laurent N, Sastre-Garau X, Chevillard S, Malfoy B. A transcriptome signature distinguished sporadic from postradiotherapy radiation-induced sarcomas. Carcinogenesis 2011; 32:929-34. [PMID: 21470956 DOI: 10.1093/carcin/bgr064] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Exposure to ionizing radiation is a known risk factor for cancer. However, up to now, rigorously defined scientific criteria that could establish case-by-case the radiation-induced (RI) origin of a tumour have been lacking. To identify genes that could constitute a RI signature, we compared the transcriptome of 12 sarcomas arising in the irradiation field of a primary tumour following radiotherapy with the transcriptome of 12 sporadic sarcomas. This learning/training set contained four leiomyosarcomas, four osteosarcomas and four angiosarcomas in each subgroup. We identified a signature of 135 genes discriminating RI from sporadic sarcomas. The robustness of this signature was tested by the blind case-by-case classification of an independent set of 36 sarcomas of various histologies. Thirty-one sarcomas were classified as RI or sporadic; it was not possible to propose an aetiology for the five others. After the code break, it was found that one sporadic sarcoma was misclassified as RI. Thus, the signature is robust with a sensitivity of 96%, a positive and a negative predictive value of 96 and 100%, respectively and a specificity of 62%. The functions of the genes of the signature suggest that RI sarcomas were subject to chronic oxidative stress probably due to mitochondrial dysfunction.
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Ory C, Ugolin N, Levalois C, Lacroix L, Caillou B, Bidart JM, Schlumberger M, Diallo I, de Vathaire F, Hofman P, Santini J, Malfoy B, Chevillard S. Gene expression signature discriminates sporadic from post-radiotherapy-induced thyroid tumors. Endocr Relat Cancer 2011; 18:193-206. [PMID: 21148326 PMCID: PMC3023880 DOI: 10.1677/erc-10-0205] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Both external and internal exposure to ionizing radiation are strong risk factors for the development of thyroid tumors. Until now, the diagnosis of radiation-induced thyroid tumors has been deduced from a network of arguments taken together with the individual history of radiation exposure. Neither the histological features nor the genetic alterations observed in these tumors have been shown to be specific fingerprints of an exposure to radiation. The aim of our work is to define ionizing radiation-related molecular specificities in a series of secondary thyroid tumors developed in the radiation field of patients treated by radiotherapy. To identify molecular markers that could represent a radiation-induction signature, we compared 25K microarray transcriptome profiles of a learning set of 28 thyroid tumors, which comprised 14 follicular thyroid adenomas (FTA) and 14 papillary thyroid carcinomas (PTC), either sporadic or consecutive to external radiotherapy in childhood. We identified a signature composed of 322 genes which discriminates radiation-induced tumors (FTA and PTC) from their sporadic counterparts. The robustness of this signature was further confirmed by blind case-by-case classification of an independent set of 29 tumors (16 FTA and 13 PTC). After the histology code break by the clinicians, 26/29 tumors were well classified regarding tumor etiology, 1 was undetermined, and 2 were misclassified. Our results help shed light on radiation-induced thyroid carcinogenesis, since specific molecular pathways are deregulated in radiation-induced tumors.
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MESH Headings
- Adenoma/diagnosis
- Adenoma/etiology
- Adenoma/genetics
- Adolescent
- Adult
- Age Factors
- Carcinoma, Papillary/diagnosis
- Carcinoma, Papillary/etiology
- Carcinoma, Papillary/genetics
- Child
- Child, Preschool
- Diagnosis, Differential
- Dose-Response Relationship, Radiation
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Humans
- Male
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasms, Radiation-Induced/diagnosis
- Neoplasms, Radiation-Induced/etiology
- Neoplasms, Radiation-Induced/genetics
- Oligonucleotide Array Sequence Analysis
- Radiotherapy/adverse effects
- Radiotherapy Dosage
- Single-Blind Method
- Thyroid Neoplasms/diagnosis
- Thyroid Neoplasms/etiology
- Thyroid Neoplasms/genetics
- Young Adult
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Affiliation(s)
- Catherine Ory
- CEA, DSV, IRCM, LCE, BP6, Fontenay-aux-Roses F-92265, France.
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Sinnott B, Ron E, Schneider AB. Exposing the thyroid to radiation: a review of its current extent, risks, and implications. Endocr Rev 2010; 31:756-73. [PMID: 20650861 PMCID: PMC3365850 DOI: 10.1210/er.2010-0003] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Accepted: 06/04/2010] [Indexed: 12/26/2022]
Abstract
Radiation exposure of the thyroid at a young age is a recognized risk factor for the development of differentiated thyroid cancer lasting for four decades and probably for a lifetime after exposure. Medical radiation exposure, however, occurs frequently, including among the pediatric population, which is especially sensitive to the effects of radiation. In the past, the treatment of benign medical conditions with external radiation represented the most significant thyroid radiation exposures. Today, diagnostic medical radiation represents the largest source of man-made radiation exposure. Radiation exposure related to the use of computerized tomography is rising exponentially, particularly in the pediatric population. There is direct epidemiological evidence of a small but significant increased risk of cancer at radiation doses equivalent to computerized tomography doses used today. Paralleling the increasing use of medical radiation is an increase in the incidence of papillary thyroid cancer. At present, it is unclear how much of this increase is related to increased detection of subclinical disease from the increased utilization of ultrasonography and fine-needle aspiration, how much is due to a true increase in thyroid cancer, and how much, if any, can be ascribed to medical radiation exposure. Fortunately, the amount of radiation exposure from medical sources can be reduced. In this article we review the sources of thyroid radiation exposure, radiation risks to the thyroid gland, strategies for reducing radiation exposure to the thyroid, and ways that endocrinologists can participate in this effort. Finally, we provide some suggestions for future research directions.
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Affiliation(s)
- Bridget Sinnott
- Section of Endocrinology, Diabetes, and Metabolism, College of Medicine, University of Illinois at Chicago, 1819 West Polk Street (MC 640), Chicago, Illinois 60612, USA
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Zitzelsberger H, Thomas G, Unger K. Chromosomal aberrations in thyroid follicular-cell neoplasia: in the search of novel oncogenes and tumour suppressor genes. Mol Cell Endocrinol 2010; 321:57-66. [PMID: 19961897 DOI: 10.1016/j.mce.2009.11.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 11/10/2009] [Accepted: 11/27/2009] [Indexed: 10/20/2022]
Abstract
Thyroid cancer derived from the follicular cell is characterised by specific gene alterations that are closely linked to the various pathological types comprising papillary, follicular and anaplastic thyroid cancer. However, the correlation between molecular biology and pathology is not absolute, since about 30% of cases do not harbour the typical gene alterations. This situation, coupled with the demonstration of genetic heterogeneity in thyroid cancer, is a strong motivation for the search of novel gene alterations. Chromosomal aberrations are a good starting point to initiate this search and therefore the current knowledge on chromosomal alterations in thyroid follicular-cell neoplasia is reviewed in this article. An overview on molecular cytogenetic approaches for this strategy is also provided. The identification of novel genetic markers in thyroid cancer will be further improved by integrative approaches combining data from genomic and expression analyses with clinical data. This approach is powerful to identify genetic markers as well as new therapeutic targets in follicular-cell thyroid cancer.
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Affiliation(s)
- Horst Zitzelsberger
- Department of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health GmbH, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany.
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35
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Stein L, Rothschild J, Luce J, Cowell JK, Thomas G, Bogdanova TI, Tronko MD, Hawthorn L. Copy number and gene expression alterations in radiation-induced papillary thyroid carcinoma from chernobyl pediatric patients. Thyroid 2010; 20:475-87. [PMID: 19725780 DOI: 10.1089/thy.2009.0008] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Following exposure to radiation during the Chernobyl fallout tragedy, papillary thyroid carcinoma (PTC) increased significantly in individuals who were children at the time of the accident. We have used two high-throughput, whole genome platforms to analyze radiation-induced PTCs from pediatric patients from the Chernobyl region. METHODS We performed comparative genomic hybridization using Affymetrix 50K Mapping arrays and gene expression profiling on 10 pediatric post-Chernobyl PTCs obtained from patients living in the region. We performed an overlay analysis of these two data sets. RESULTS Many regions of copy number alterations (CNAs) were detected including novel regions that had never been associated with PTCs. Increases in copy numbers were consistently found on chromosomes 1p, 5p, 9q, 12q, 13q, 16p, 21q, and 22q. Deletions were observed less frequently and were mapped to 1q, 6q, 9q, 10q, 13q, 14q, 21q, and 22q. Gene expression analysis revealed that most of the altered genes were also perturbed in sporadic adult PTC; however, 141 gene expression changes were found to be unique to the post-Chernobyl tumors. The genes with the highest increases in expression that were novel to the pediatric post-Chernobyl tumors were TESC, PDZRN4, TRAa/TRDa, GABBR2, and CA12. The genes showing the largest expression decreases included PAPSS2, PDLIM3, BEXI, ANK2, SORBS2, and PPARGCIA. An overlay analysis of the gene expression and CNA profiles was then performed. This analysis identified genes showing both CNAs and concurrent gene expression alterations. Many of these are commonly seen in sporadic PTC such as SERPINA, COL8A, and PDX, while others were unique to the radiation-induced profiles including CAMK2N1, AK1, DHRS3, and PDE9A. CONCLUSIONS This type of analysis allows an assessment of gene expression changes that are associated with a physical mechanism. These genes and chromosomal regions are potential markers for radiation-induced PTC.
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Affiliation(s)
- Leighton Stein
- Roswell Park Cancer Institute , Department of Cancer Genetics, Buffalo, New York, USA
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36
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Port M, Wang Y, Schmelz HU, Pottek T, Meineke V, Ruf C, Abend M. A gene signature of primary tumor identifies metastasized seminoma. Urol Oncol 2009; 29:764-73. [PMID: 19945308 DOI: 10.1016/j.urolonc.2009.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 08/09/2009] [Accepted: 08/10/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND The aim of this study was the prediction of metastatic status in seminoma based on examination of the primary tumor. METHODS Total RNA was isolated from metastasized seminoma (n = 10, T1N1-2M0), non-metastasized seminoma (n = 21, T1-3N0M0), and corresponding normal tissues. Pooled RNA from 10 biopsies of each tissue type was hybridized on whole genome microarrays for screening purposes. Ninety-two selected gene candidates were quantitatively examined using real-time quantitative polymerase chain reaction (RTQ-PCR). RESULTS Agreement in gene expression was 88% between the whole genome microarrays and RTQ-PCR. Metastasized seminoma showed 1,912 up-regulated and 2,179 down-regulated genes with ≥ 2-fold differences in gene expression compared non-metastasized seminoma. RTQ-PCR of selected genes showed that mean gene expression values were significantly reduced in metastasized compared with non-metastasized seminoma. The presence of metastases could be predicted based on an 85-gene expression signature by using logistic regression. Sensitivity and accuracy of the 10-fold cross-validation model were 77.8% and 84.2%, respectively. CONCLUSION A logistic regression model using an 85 gene expression signature allowed identification of metastasized seminoma from the primary tumor with a sensitivity of 77.8%.
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Affiliation(s)
- Matthias Port
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
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Greco JA, Pollins AC, Boone BE, Levy SE, Nanney LB. A microarray analysis of temporal gene expression profiles in thermally injured human skin. Burns 2009; 36:192-204. [PMID: 19781859 DOI: 10.1016/j.burns.2009.06.211] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Revised: 05/13/2009] [Accepted: 06/16/2009] [Indexed: 12/30/2022]
Abstract
Partial-thickness burns incite a multitude of responses which eventually culminate in cutaneous wound repair. We hypothesized that these events would evoke extensive alterations in gene expression thereby orchestrating the complexity of spatial and temporal events that characterize "normal" human wound healing. In the present study, gene expression from partial-thickness areas at defined temporal periods (1-3 days, 4-6 days, and 7-18 days) after injury were compared to normal non-wounded skin. Gene alterations proved extensive (2286 genes). Statistically significant alterations were noted among increased and decreased genes expressed in the three different temporal groupings. Our foundational data (based on samples from 45 individuals) provide a comprehensive molecular gene expression portrait of the cutaneous reparative responses that are initiated during the first 17 days after injury. Our efforts also represent an initial endeavor to move beyond the historically defined "morphological phases" of wound repair toward reporting molecular clues that define the temporal sequence of healing in human subjects. Further analysis of genes that are either affected or remain not affected following injury to normal skin is expected to identify potential targets for therapeutic augmentation or silencing.
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Affiliation(s)
- J A Greco
- Department of Plastic Surgery, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
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Daino K, Ugolin N, Altmeyer-Morel S, Guilly MN, Chevillard S. Gene expression profiling of alpha-radiation-induced rat osteosarcomas: Identification of dysregulated genes involved in radiation-induced tumorigenesis of bone. Int J Cancer 2009; 125:612-20. [DOI: 10.1002/ijc.24392] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Seidl C, Port M, Apostolidis C, Bruchertseifer F, Schwaiger M, Senekowitsch-Schmidtke R, Abend M. Differential gene expression triggered by highly cytotoxic alpha-emitter-immunoconjugates in gastric cancer cells. Invest New Drugs 2009; 28:49-60. [PMID: 19139817 DOI: 10.1007/s10637-008-9214-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Accepted: 12/19/2008] [Indexed: 12/20/2022]
Abstract
Immunoconjugates composed of the alpha-emitter (213)Bi and the monoclonal antibody d9MAb specifically target HSC45-M2 gastric cancer cells expressing mutant d9-E-cadherin. These conjugates efficiently killed tumor cells in a nude mouse peritoneal carcinomatosis model. To elucidate the molecular responses of HSC45-M2 cells to alpha-emitter irradiation, whole genome gene expression profiling was performed. For that purpose HSC45-M2 cells were incubated with lethal doses of (213)Bi-d9MAb. RNA was isolated at 6, 24 and 48 h after irradiation, transcribed into cDNA and hybridized to whole genome microarrays. Results of microarray analysis were validated using RTQ-PCR showing correspondence of approximately 90%. Following incubation with (213)Bi-d9MAb, 682-1125 genes showed upregulation and 666-1278 genes showed downregulation at one time point, each. Eight genes appeared upregulated and 12 genes downregulated throughout. Molecular functions and biological processes of differentially expressed genes were categorized according to the PANTHER database. Following (213)Bi-d9MAb irradiation also a time-dependent shift in terms of overrepresentation of biological processes was observed. Among the genes showing continuous upregulation, COL4A2, NEDD9 and C3 have not been associated with the cellular response to high LET radiation so far. The same holds true for WWP2, RFX3, HIST4H4 and JADE1 that showed continuous downregulation. According to PANTHER, three of the consistently upregulated (ITM2C, FLJ11000, MSMB) and downregulated (HCG9, GAS2L3, FLJ21439) genes, respectively, have not been associated with any biological process or molecular function so far. Thus, these findings revealed interesting new targets for selective elimination of tumor cells and new insights regarding response of tumor cells to alpha-emitter exposure.
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Affiliation(s)
- Christof Seidl
- Department of Nuclear Medicine, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany.
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Detours V, Versteyhe S, Dumont JE, Maenhaut C. Gene expression profiles of post-Chernobyl thyroid cancers. Curr Opin Endocrinol Diabetes Obes 2008; 15:440-5. [PMID: 18769217 DOI: 10.1097/med.0b013e32830eb874] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW We discuss new evidence supporting the existence of a susceptibility to develop cancer following radiation exposure that is variable in the general population and could be measurable from gene expression. RECENT FINDINGS Microarray analysis of spontaneous and post-Chernobyl thyroid cancers has uncovered gene expression radiation signatures, one of which could be related to the putative cause of these tumors and to a DNA repair pathway. A gene expression signature distinguishes the lymphocytes drawn from parents of children with retinoblastoma and the lymphocytes of parents of healthy children. The first are more radiosensitive. A familial clustering pattern is observed in radiation-induced meningiomas. SUMMARY The existence of a susceptibility to develop radiation-induced cancer would explain why only a minority of the population most heavily exposed to radiation following the Chernobyl disaster developed a cancer. The possibility of measuring this susceptibility from gene expression has a number of implications for research, medicine and radioprotection.
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[Value of targeted treatment for testicular cancer: from molecular approaches to clinical possibilities]. Urologe A 2008; 47:1328-33. [PMID: 18587552 DOI: 10.1007/s00120-008-1750-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Due to the introduction of tyrosine kinase-inhibitors in the treatment of metastatic renal cell cancer, targeted therapy raises hopes for other urological tumors as well. Even if excellent cure rates, achieved by standardization of diagnosis und therapy, have made testicular cancer a curable disease, up to 6% of young patients still die from tumors refractory to therapy. The quality of life of patients in advanced stages needing aggressive treatment should be improved by new therapies with reduced side effects. The role of tyrosine kinase inhibitors and angiogenesis inhibitors as well as intervention in the cell cycle and induction of apoptosis are discussed.
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