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Diana P, Ribeiro Carneiro TN, Cerutti JM, Kuroshu RM, Carvalheira GMG. Transcriptomic analysis reveals that NIBAN1 overexpression is associated with BRAF V600E mutation and increases the aggressiveness of thyroid cancer. Genes Dis 2024; 11:101094. [PMID: 38425426 PMCID: PMC10904183 DOI: 10.1016/j.gendis.2023.101094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/16/2023] [Accepted: 07/24/2023] [Indexed: 03/02/2024] Open
Affiliation(s)
- Paula Diana
- Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Rua Botucatu, 740, Edifício Leitão da Cunha, 1 Andar, São Paulo, SP 04023900, Brazil
| | - Thaise Nayane Ribeiro Carneiro
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, São Paulo, SP 04039-032, Brazil
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, São Paulo, SP 04039-032, Brazil
| | - Reginaldo Massanobu Kuroshu
- Institute of Science and Technology, Universidade Federal de São Paulo, Av Cesare Mansueto Giulio Lattes, 1201, Eugênio de Mello, São José dos Campos, SP 12247-014, Brazil
| | - Gianna Maria Griz Carvalheira
- Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Rua Botucatu, 740, Edifício Leitão da Cunha, 1 Andar, São Paulo, SP 04023900, Brazil
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2
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Perumal PV, Siddaraju N, Saxena SK, Rajendiran S, Bhat RV. Utility of the Growth Differentiation Factor-15 in the Differential Diagnosis of Follicular-Patterned Lesions of the Thyroid on Cytopathologic and Histopathologic Samples. Cureus 2023; 15:e46206. [PMID: 37905271 PMCID: PMC10613452 DOI: 10.7759/cureus.46206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2023] [Indexed: 11/02/2023] Open
Abstract
Background Follicular-patterned lesions are a major gray zone in thyroid cytopathology. The recently introduced 2022 World Health Organization (WHO) classification emphasizes the importance of genetic alterations in thyroid neoplasms with the introduction of certain newer terminologies that are expected to cause remarkable changes in cytopathologic and histopathologic reporting. Although molecular assays such as the Afirma gene expression classifier and the ThyroSeq are already in use, there has been an ongoing search for further reliable molecular markers. The growth differentiation factor-15 (GDF-15) is one among them. This study aimed to determine the diagnostic utility of GDF-15 mRNA expression in frozen tissue and fine-needle aspiration (FNA) samples from follicular-patterned thyroid lesions and neoplasms. Methodology The real-time quantitative polymerase chain reaction was performed on 75 frozen tissue and FNA samples each from 19 cases of follicular thyroid hyperplasia (FTH), 10 nodular goiters (NGs), 17 follicular thyroid adenomas (FTAs), eight follicular thyroid carcinomas (FTCs), 12 follicular variant of papillary thyroid carcinomas (FVPTCs), and nine classic papillary thyroid carcinomas (CPTCs) that were diagnosed according to the 2017 WHO classification of thyroid neoplasms. The GDF-15 mRNA expression in all these cases was assessed and compared with the control thyroid tissue samples. One-way analysis of variance and the Kruskal-Wallis test were performed using GraphPad Prism 8 software to determine the significance of differences in the GDF-15 mRNA levels among various thyroid lesions. Results A higher GDF-15 mRNA expression was noted in the malignant thyroid neoplasms including FTC, FVPTC, and CPTC in comparison to FTA, with a fold change between the malignant and benign groups being more than 244.18 times. A difference in the fold change was noted between FTH and FTA with an increase in GDF-15 mRNA level in the latter, which was statistically not significant. Conclusions The fact that GDF-15 mRNA was studied both on fine-needle aspiration cytologic and the frozen tissue material and that the majority of the lesions studied were follicular-patterned establishes the GDF-15 as a potential marker not only for diagnosing malignant thyroid neoplasms of the follicular epithelium but also in distinguishing benign and malignant follicular-patterned neoplasms of the thyroid.
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Affiliation(s)
- Prasanna V Perumal
- Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, IND
| | - Neelaiah Siddaraju
- Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, IND
| | - Sunil K Saxena
- ENT, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, IND
| | - Soundravally Rajendiran
- Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, IND
| | - Ramachandra V Bhat
- Pathology, Indira Gandhi Medical College and Research Institute (IGMC & RI), Puducherry, IND
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3
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Zaki MEA, Al-Hussain SA, Al-Mutairi AA, Samad A, Ghosh A, Chaudhari S, Khatale PN, Ajmire P, Jawarkar RD. In-silico studies to recognize repurposing therapeutics toward arginase-I inhibitors as a potential onco-immunomodulators. Front Pharmacol 2023; 14:1129997. [PMID: 37144217 PMCID: PMC10151555 DOI: 10.3389/fphar.2023.1129997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/27/2023] [Indexed: 05/06/2023] Open
Abstract
Rudolf Virchow was the first person to point out the important link between immune function and cancer. He did this by noticing that leukocytes were often found in tumors. Overexpression of arginase 1 (ARG1) and inducible nitric oxide synthase (iNOS) in myeloid-derived suppressor cells (MDSCs) and tumour-associated macrophages (TAMs) depletes both intracellular and extracellular arginine. TCR signalling is slowed as a result, and the same types of cells produce reactive oxygen and nitrogen species (ROS and RNS), which aggravates the situation. Human arginase I is a double-stranded manganese metalloenzyme that helps L-arginine break down into L-ornithine and urea. Thus, a quantitative structure-activity relationship (QSAR) analysis was performed to unearth the unrecognised structural aspects crucial for arginase-I inhibition. In this work, a balanced QSAR model with good prediction performance and clear mechanistic interpretation was developed using a dataset of 149 molecules encompassing a broad range of structural scaffolds and compositions. The model was made to meet OECD standards, and all of its validation parameters have values that are higher than the minimum requirements (R2 tr = 0.89, Q2 LMO = 0.86, and R2 ex = 0.85). The present QSAR study linked structural factors to arginase-I inhibitory action, including the proximity of lipophilic atoms to the molecule's centre of mass (within 3A), the position of the donor to the ring nitrogen (exactly 3 bonds away), and the surface area ratio. As OAT-1746 and two others are the only arginase-I inhibitors in development at the time, we have performed a QSAR-based virtual screening with 1650 FDA compounds taken from the zinc database. In this screening, 112 potential hit compounds were found to have a PIC50 value of less than 10 nm against the arginase-I receptor. The created QSAR model's application domain was evaluated in relation to the most active hit molecules identified using QSAR-based virtual screening, utilising a training set of 149 compounds and a prediction set of 112 hit molecules. As shown in the Williams plot, the top hit molecule, ZINC000252286875, has a low leverage value of HAT i/i h* = 0.140, placing it towards the boundary of the usable range. Furthermore, one of 112 hit molecules with a docking score of -10.891 kcal/mol (PIC50 = 10.023 M) was isolated from a study of arginase-I using molecular docking. Protonated ZINC000252286875-linked arginase-1 showed 2.9 RMSD, whereas non-protonated had 1.8. RMSD plots illustrate protein stability in protonated and non-protonated ZINC000252286875-bound states. Protonated-ZINC000252286875-bound proteins contain 25 Rg. The non-protonated protein-ligand combination exhibits a 25.2-Rg, indicating compactness. Protonated and non-protonated ZINC000252286875 stabilised protein targets in binding cavities posthumously. Significant root mean square fluctuations (RMSF) were seen in the arginase-1 protein at a small number of residues for a time function of 500 ns in both the protonated and unprotonated states. Protonated and non-protonated ligands interacted with proteins throughout the simulation. ZINC000252286875 bound Lys64, Asp124, Ala171, Arg222, Asp232, and Gly250. Aspartic acid residue 232 exhibited 200% ionic contact. 500-ns simulations-maintained ions. Salt bridges for ZINC000252286875 aided docking. ZINC000252286875 created six ionic bonds with Lys68, Asp117, His126, Ala171, Lys224, and Asp232 residues. Asp117, His126, and Lys224 showed 200% ionic interactions. In protonated and deprotonated states, GbindvdW, GbindLipo, and GbindCoulomb energies played crucial role. Moreover, ZINC000252286875 meets all of the ADMET standards to serve as a drug. As a result, the current analyses were successful in locating a novel and potent hit molecule that inhibits arginase-I effectively at nanomolar concentrations. The results of this investigation can be used to develop brand-new arginase I inhibitors as an alternative immune-modulating cancer therapy.
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Affiliation(s)
- Magdi E. A. Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
- *Correspondence: Magdi E. A. Zaki, ; Rahul D. Jawarkar,
| | - Sami A. Al-Hussain
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Aamal A. Al-Mutairi
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Abdul Samad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Arabinda Ghosh
- Microbiology Division, Department of Botany, Gauhati University, Guwahati, India
| | - Somdatta Chaudhari
- Department of Pharmaceutical Chemistry, Progressive Education Society’s Modern College of Pharmacy, Pune, India
| | - Pravin N. Khatale
- Department of Medicinal Chemistry, Dr Rajendra Gode Institute of Pharmacy, Amravati, Maharashtra, India
| | - Prashant Ajmire
- Department of Medicinal Chemistry, Dr Rajendra Gode Institute of Pharmacy, Amravati, Maharashtra, India
| | - Rahul D. Jawarkar
- Department of Medicinal Chemistry, Dr Rajendra Gode Institute of Pharmacy, Amravati, Maharashtra, India
- *Correspondence: Magdi E. A. Zaki, ; Rahul D. Jawarkar,
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4
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Weis-Banke SE, Lisle TL, Perez-Penco M, Schina A, Hübbe ML, Siersbæk M, Holmström MO, Jørgensen MA, Marie Svane I, Met Ö, Ødum N, Madsen DH, Donia M, Grøntved L, Andersen MH. Arginase-2-specific cytotoxic T cells specifically recognize functional regulatory T cells. J Immunother Cancer 2022; 10:jitc-2022-005326. [PMID: 36316062 PMCID: PMC9628693 DOI: 10.1136/jitc-2022-005326] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2022] [Indexed: 11/05/2022] Open
Abstract
Background High expression of the metabolic enzyme arginase-2 (ARG2) by cancer cells, regulatory immune cells, or cells of the tumor stroma can reduce the availability of arginine (L-Arg) in the tumor microenvironment (TME). Depletion of L-Arg has detrimental consequences for T cells and leads to T-cell dysfunction and suppression of anticancer immune responses. Previous work from our group has demonstrated the presence of proinflammatory ARG2-specific CD4 T cells that inhibited tumor growth in murine models on activation with ARG2-derived peptides. In this study, we investigated the natural occurrence of ARG2-specific CD8 T cells in both healthy donors (HDs) and patients with cancer, along with their immunomodulatory capabilities in the context of the TME. Materials and methods A library of 15 major histocompatibility complex (MHC) class I-restricted ARG2-derived peptides were screened in HD peripheral blood mononuclear cells using interferon gamma (IFN-γ) ELISPOT. ARG2-specific CD8 T-cell responses were identified using intracellular cytokine staining and ARG2-specific CD8 T-cell cultures were established by enrichment and rapid expansion following in vitro peptide stimulation. The reactivity of the cultures toward ARG2-expressing cells, including cancer cell lines and activated regulatory T cells (Tregs), was assessed using IFN-γ ELISPOT and a chromium release assay. The Treg signature was validated based on proliferation suppression assays, flow cytometry and quantitative reverse transcription PCR (RT-qPCR). In addition, vaccinations with ARG2-derived epitopes were performed in the murine Pan02 tumor model, and induction of ARG2-specific T-cell responses was evaluated with IFN-γ ELISPOT. RNAseq and subsequent GO-term and ImmuCC analysis was performed on the tumor tissue. Results We describe the existence of ARG2-specific CD8+ T cells and demonstrate these CD8+ T-cell responses in both HDs and patients with cancer. ARG2-specific T cells recognize and react to an ARG2-derived peptide presented in the context of HLA-B8 and exert their cytotoxic function against cancer cells with endogenous ARG2 expression. We demonstrate that ARG2-specific T cells can specifically recognize and react to activated Tregs with high ARG2 expression. Finally, we observe tumor growth suppression and antitumorigenic immunomodulation following ARG2 vaccination in an in vivo setting. Conclusion These findings highlight the ability of ARG2-specific T cells to modulate the immunosuppressive TME and suggest that ARG2-based immunomodulatory vaccines may be an interesting option for cancer immunotherapy.
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Affiliation(s)
- Stine Emilie Weis-Banke
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Thomas Landkildehus Lisle
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Maria Perez-Penco
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Aimilia Schina
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Mie Linder Hübbe
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Majken Siersbæk
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Morten Orebo Holmström
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark.,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Mia Aaboe Jørgensen
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Inge Marie Svane
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Özcan Met
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Niels Ødum
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Daniel Hargbøl Madsen
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Marco Donia
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark
| | - Lars Grøntved
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Mads Hald Andersen
- Department of Oncology, Herlev Hospital, National Center for Cancer Immune Therapy (CCIT-DK), Herlev, Denmark .,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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5
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Kuo CY, Jhuang JY, Huang WC, Cheng SP. Aberrant Expression of Thymosin Beta-4 Correlates With Advanced Disease and BRAF V600E Mutation in Thyroid Cancer. J Histochem Cytochem 2022; 70:707-716. [PMID: 36321670 PMCID: PMC9660367 DOI: 10.1369/00221554221138370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022] Open
Abstract
Thymosin beta-4 (TMSB4X) was recently identified as a differentially expressed gene between malignant and non-malignant thyroid cells via single-cell RNA sequencing. In the present study, we aimed to study the immunostaining pattern of TMSB4X in benign and malignant thyroid neoplasms. Immunohistochemical analysis revealed that normal thyroid tissue or benign thyroid disorders exhibited undetectable immunoreactivity against TMSB4X except for positive staining of inflammatory infiltrates and stromal cells associated with autoimmune thyroid disease. By contrast, overexpression of TMSB4X was observed in a variety of thyroid malignancies, including papillary, follicular, poorly differentiated, and undifferentiated thyroid cancer. Among 141 patients with differentiated thyroid cancer, higher TMSB4X expression was associated with papillary tumor type, extrathyroidal extension, lymph node metastasis, and BRAF V600E mutation. The results were consistent with those from the public transcriptomic datasets. In summary, TMSB4X expression was aberrantly increased in various types of thyroid cancer, and higher TMSB4X expression was correlated with advanced disease characteristics. Thymosin beta-4 may be a novel downstream effector of the BRAF V600E mutation.
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Affiliation(s)
- Chi-Yu Kuo
- Department of Surgery, MacKay Memorial
Hospital, Taipei
- Department of Medicine, School of Medicine,
MacKay Medical College, New Taipei City
| | - Jie-Yang Jhuang
- Department of Pathology, MacKay Memorial
Hospital, Taipei
- Department of Medicine, School of Medicine,
MacKay Medical College, New Taipei City
| | - Wen-Chien Huang
- Department of Surgery, MacKay Memorial
Hospital, Taipei
- Department of Medicine, School of Medicine,
MacKay Medical College, New Taipei City
| | - Shih-Ping Cheng
- Department of Surgery, MacKay Memorial
Hospital, Taipei
- Department of Medicine, School of Medicine,
MacKay Medical College, New Taipei City
- Institute of Biomedical Sciences, MacKay
Medical College, New Taipei City
- Department of Pharmacology, School of
Medicine, College of Medicine, Taipei Medical University, Taipei
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6
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Diana P, Carvalheira GMG. NIBAN1, Exploring its Roles in Cell Survival Under Stress Context. Front Cell Dev Biol 2022; 10:867003. [PMID: 35517496 PMCID: PMC9062034 DOI: 10.3389/fcell.2022.867003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Cell survival must quickly activate specific mechanisms that enable to detect changes in the cellular microenvironment. The impact of these cell alteration has direct consequences on cellular homeostasis. Cellular stress, as well as its regulation and implication, has been studied in different pathologies. In this sense, the alteration in NIBAN1 expression seems to act in response to different cellular disturbances. Over the years, the knowledge of NIBAN1 functions has improved, demonstrating its important cell roles, favoring the cell survival under stress context. In response to the disturbances, NIBAN1 seems to be involved in the decision-making process between cell survival and death. The increase in NIBAN1 expression has been related to cellular mechanisms that seek to minimize the damage caused to cellular homeostasis. In this review, the main biological insights attributed to the NIBAN1 gene in different cellular contexts and its role as a mediator of cellular stress are discussed.
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7
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Sosnowska A, Chlebowska-Tuz J, Matryba P, Pilch Z, Greig A, Wolny A, Grzywa TM, Rydzynska Z, Sokolowska O, Rygiel TP, Grzybowski M, Stanczak P, Blaszczyk R, Nowis D, Golab J. Inhibition of arginase modulates T-cell response in the tumor microenvironment of lung carcinoma. Oncoimmunology 2021; 10:1956143. [PMID: 34367736 PMCID: PMC8312619 DOI: 10.1080/2162402x.2021.1956143] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Immunotherapy has demonstrated significant activity in a broad range of cancer types, but still the majority of patients receiving it do not maintain durable therapeutic responses. Amino acid metabolism has been proposed to be involved in the regulation of immune response. Here, we investigated in detail the role of arginase 1 (Arg1) in the modulation of antitumor immune response against poorly immunogenic Lewis lung carcinoma. We observed that tumor progression is associated with an incremental increase in the number of Arg1+ myeloid cells that accumulate in the tumor microenvironment and cause systemic depletion of ʟ-arginine. In advanced tumors, the systemic concentrations of ʟ-arginine are decreased to levels that impair the proliferation of antigen-specific T-cells. Systemic or myeloid-specific Arg1 deletion improves antigen-induced proliferation of adoptively transferred T-cells and leads to inhibition of tumor growth. Arginase inhibitor was demonstrated to modestly inhibit tumor growth when used alone, and to potentiate antitumor effects of anti-PD-1 monoclonal antibodies and STING agonist. The effectiveness of the combination immunotherapy was insufficient to induce complete antitumor responses, but was significantly better than treatment with the checkpoint inhibitor alone. Together, these results indicate that arginase inhibition alone is of modest therapeutic benefit in poorly immunogenic tumors; however, in combination with other treatment strategies it may significantly improve survival outcomes.
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Affiliation(s)
- Anna Sosnowska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Justyna Chlebowska-Tuz
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Laboratory of Experimental Medicine, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Pawel Matryba
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Laboratory of Neurobiology, BRAINCITY, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland.,The Doctoral School of the Medical University of Warsaw, Medical University of Warsaw, Warsaw, Poland
| | - Zofia Pilch
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Alan Greig
- Department of Cell and Developmental Biology, Division of Biosciences, University College London, London, UK
| | - Artur Wolny
- Laboratory of Imaging Tissue Structure and Function, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Tomasz M Grzywa
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,The Doctoral School of the Medical University of Warsaw, Medical University of Warsaw, Warsaw, Poland
| | - Zuzanna Rydzynska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Olga Sokolowska
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland.,Laboratory of Experimental Medicine, Centre of New Technologies, University of Warsaw, Warsaw, Poland
| | - Tomasz P Rygiel
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | | | | | | | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Laboratory of Experimental Medicine, Centre of New Technologies, University of Warsaw, Warsaw, Poland.,Laboratory of Experimental Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Centre of Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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Carneiro TNR, Bim LV, Buzatto VC, Galdeno V, Asprino PF, Lee EA, Galante PAF, Cerutti JM. Evidence of Cooperation between Hippo Pathway and RAS Mutation in Thyroid Carcinomas. Cancers (Basel) 2021; 13:2306. [PMID: 34065786 PMCID: PMC8151534 DOI: 10.3390/cancers13102306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 12/30/2022] Open
Abstract
Thyroid cancer incidences have been steadily increasing worldwide and are projected to become the fourth leading cancer diagnosis by 2030. Improved diagnosis and prognosis predictions for this type of cancer depend on understanding its genetic bases and disease biology. RAS mutations have been found in a wide range of thyroid tumors, from benign to aggressive thyroid carcinomas. Based on that and in vivo studies, it has been suggested that RAS cooperates with other driver mutations to induce tumorigenesis. This study aims to identify genetic alterations or pathways that cooperate with the RAS mutation in the pathogenesis of thyroid cancer. From a cohort of 120 thyroid carcinomas, 11 RAS-mutated samples were identified. The samples were subjected to RNA-Sequencing analyses. The mutation analysis in our eleven RAS-positive cases uncovered that four genes that belong to the Hippo pathway were mutated. The gene expression analysis revealed that this pathway was dysregulated in the RAS-positive samples. We additionally explored the mutational status and expression profiling of 60 RAS-positive papillary thyroid carcinomas (PTC) from The Cancer Genome Atlas (TCGA) cohort. Altogether, the mutational landscape and pathway enrichment analysis (gene set enrichment analysis (GSEA) and Kyoto Encyclopedia of Genes and Genome (KEGG)) detected the Hippo pathway as dysregulated in RAS-positive thyroid carcinomas. Finally, we suggest a crosstalk between the Hippo and other signaling pathways, such as Wnt and BMP.
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Affiliation(s)
- Thaise Nayane Ribeiro Carneiro
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, São Paulo, SP 04039-032, Brazil; (T.N.R.C.); (L.V.B.)
| | - Larissa Valdemarin Bim
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, São Paulo, SP 04039-032, Brazil; (T.N.R.C.); (L.V.B.)
| | - Vanessa Candiotti Buzatto
- Centro de Oncologia Molecular, Hospital Sírio-libanês, Rua Professor Daher Cutait 69, Bela Vista, São Paulo, SP 01308-060, Brazil; (V.C.B.); (V.G.); (P.F.A.); (P.A.F.G.)
| | - Vanessa Galdeno
- Centro de Oncologia Molecular, Hospital Sírio-libanês, Rua Professor Daher Cutait 69, Bela Vista, São Paulo, SP 01308-060, Brazil; (V.C.B.); (V.G.); (P.F.A.); (P.A.F.G.)
| | - Paula Fontes Asprino
- Centro de Oncologia Molecular, Hospital Sírio-libanês, Rua Professor Daher Cutait 69, Bela Vista, São Paulo, SP 01308-060, Brazil; (V.C.B.); (V.G.); (P.F.A.); (P.A.F.G.)
| | - Eunjung Alice Lee
- Division of Genetics and Genomics, Boston Children’s Hospital and Harvard Medical School, 3 Blackfan Circle, CLS (Center for Life Science) Building 15th Floor, Office 15020 | Lab 15072, Boston, MA 02115, USA;
| | - Pedro Alexandre Favoretto Galante
- Centro de Oncologia Molecular, Hospital Sírio-libanês, Rua Professor Daher Cutait 69, Bela Vista, São Paulo, SP 01308-060, Brazil; (V.C.B.); (V.G.); (P.F.A.); (P.A.F.G.)
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, São Paulo, SP 04039-032, Brazil; (T.N.R.C.); (L.V.B.)
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9
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Araujo AN, Camacho CP, Mendes TB, Lindsey SC, Moraes L, Miyazawa M, Delcelo R, Pellegrino R, Mazzotti DR, Maciel RMDB, Cerutti JM. Comprehensive Assessment of Copy Number Alterations Uncovers Recurrent AIFM3 and DLK1 Copy Gain in Medullary Thyroid Carcinoma. Cancers (Basel) 2021; 13:cancers13020218. [PMID: 33435319 PMCID: PMC7826827 DOI: 10.3390/cancers13020218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Medullary thyroid cancer (MTC) is often discovered in its advanced stage. Although a rare disease, advanced MTC cases have poor prognosis and the treatment is often palliative. Several studies have reported the existence of an association between copy number alterations (CNAs) burden and cancer progression. Moreover, the accumulation of broad CNAs, which contribute to intra-tumor heterogeneity, might be required for immune evasion. The identification of the recurrent CNAs associated with tumor phenotype aided in discovering new therapeutics options in several cancer types. To our knowledge, CNA is not well characterized in MTC. We analyzed recurrent focal CNAs on MTC. Our analysis provides a novel insight on MTC biology and may help in uncovering novel potential therapeutic targets. Abstract Medullary thyroid carcinoma (MTC) is a malignant tumor originating from thyroid C-cells that can occur either in sporadic (70–80%) or hereditary (20–30%) form. In this study we aimed to identify recurrent copy number alterations (CNA) that might be related to the pathogenesis or progression of MTC. We used Affymetrix SNP array 6.0 on MTC and paired-blood samples to identify CNA using PennCNV and Genotyping Console software. The algorithms identified recurrent copy number gains in chromosomes 15q, 10q, 14q and 22q in MTC, whereas 4q cumulated losses. Coding genes were identified within CNA regions. The quantitative PCR analysis performed in an independent series of MTCs (n = 51) confirmed focal recurrent copy number gains encompassing the DLK1 (14q32.2) and AIFM3 (22q11.21) genes. Immunohistochemistry confirmed AIFM3 and DLK1 expression in MTC cases, while no expression was found in normal thyroid tissues and few MTC samples were found with normal copy numbers. The functional relevance of CNA was also assessed by in silico analysis. CNA status correlated with protein expression (DLK1, p = 0.01), tumor size (DLK1, p = 0.04) and AJCC staging (AIFM3p = 0.01 and DLK1p = 0.05). These data provide a novel insight into MTC biology, and suggest a common CNA landscape, regardless of if it is sporadic or hereditary MTC.
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Affiliation(s)
- Aline Neves Araujo
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (A.N.A.); (T.B.M.); (L.M.); (M.M.)
| | - Cléber Pinto Camacho
- Laboratory of Molecular and Translational Endocrinology, Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (C.P.C.); (S.C.L.); (R.M.d.B.M.)
| | - Thais Biude Mendes
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (A.N.A.); (T.B.M.); (L.M.); (M.M.)
| | - Susan Chow Lindsey
- Laboratory of Molecular and Translational Endocrinology, Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (C.P.C.); (S.C.L.); (R.M.d.B.M.)
| | - Lais Moraes
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (A.N.A.); (T.B.M.); (L.M.); (M.M.)
| | - Marta Miyazawa
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (A.N.A.); (T.B.M.); (L.M.); (M.M.)
| | - Rosana Delcelo
- Department of Pathology, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Botucatu, 740, São Paulo 04023-900, Brazil;
| | - Renata Pellegrino
- Center for Applied Genomics, The Children’s Hospital of Philadelphia, Research Institute, 3401 Civic Center Blvd., Philadelphia, PA 191014, USA;
| | - Diego Robles Mazzotti
- Division of Sleep Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 191014, USA;
| | - Rui Monteiro de Barros Maciel
- Laboratory of Molecular and Translational Endocrinology, Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (C.P.C.); (S.C.L.); (R.M.d.B.M.)
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 andar, São Paulo 04039-032, Brazil; (A.N.A.); (T.B.M.); (L.M.); (M.M.)
- Correspondence: ; Tel.: +55-11-5576-4979
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10
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A Novel Nanoproteomic Approach for the Identification of Molecular Targets Associated with Thyroid Tumors. NANOMATERIALS 2020; 10:nano10122370. [PMID: 33260544 PMCID: PMC7761166 DOI: 10.3390/nano10122370] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022]
Abstract
A thyroid nodule is the most common presentation of thyroid cancer; thus, it is extremely important to differentiate benign from malignant nodules. Within malignant lesions, classification of a thyroid tumor is the primary step in the assessment of the prognosis and selection of treatment. Currently, fine-needle aspiration biopsy (FNAB) is the preoperative test most commonly used for the initial thyroid nodule diagnosis. However, due to some limitations of FNAB, different high-throughput “omics” approaches have emerged that could further support diagnosis based on histopathological patterns. In the present work, formalin-fixed paraffin-embedded (FFPE) tissue specimens from normal (non-neoplastic) thyroid (normal controls (NCs)), benign tumors (follicular thyroid adenomas (FTAs)), and some common types of well-differentiated thyroid carcinoma (follicular thyroid carcinomas (FTCs), conventional or classical papillary thyroid carcinomas (CV-PTCs), and the follicular variant of papillary thyroid carcinomas (FV-PTCs)) were analyzed. For the first time, FFPE thyroid samples were deparaffinized using an easy, fast, and non-toxic method. Protein extracts from thyroid tissue samples were analyzed using a nanoparticle-assisted proteomics approach combined with shotgun LC-MS/MS. The differentially regulated proteins found to be specific for the FTA, FTC, CV-PTC, and FV-PTC subtypes were analyzed with the bioinformatic tools STRING and PANTHER showing a profile of proteins implicated in the thyroid cancer metabolic reprogramming, cancer progression, and metastasis. These proteins represent a new source of potential molecular targets related to thyroid tumors.
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11
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Odate T, Oishi N, Vuong HG, Mochizuki K, Kondo T. Genetic differences in follicular thyroid carcinoma between Asian and Western countries: a systematic review. Gland Surg 2020; 9:1813-1826. [PMID: 33224857 DOI: 10.21037/gs-20-356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Thyroid cancer is the most common endocrine malignancy, and follicular thyroid carcinoma (FTC) is the second most common thyroid cancer following papillary thyroid carcinoma (PTC). RAS mutation and PAX8/PPARγ rearrangement are the two representative genetic alterations in FTC, and there are studies from various countries on their regional frequencies. In this study, we systematically reviewed all available literature aiming to create a complete global map showing the frequencies of these common oncogenic drivers in FTC and to highlight the trends in Asian and Western countries. We performed a search in two electronic databases and identified 71 studies that fit our criteria from 1,329 studies found with our database search terms. There were 54 articles with 1,143 FTC patients and 39 articles with 764 FTC patients available for calculating the frequency of RAS mutation and PAX8/PPARγ rearrangement, respectively. NRAS mutation was the most frequent RAS mutation in all regions, followed by HRAS and KRAS mutation. The frequency of RAS mutation in Asian countries was higher than Western countries (34% vs. 27%, P=0.006) when the mutation detection method was not taken into account. In contrast, this difference in RAS mutation incidence between Asian and Western countries (28% vs. 25%, P=0.47) did not show up in our subgroup analysis incorporating only studies using direct sequencing method. The reported difference of RAS mutation frequency in the previous literature might not be due to the true prevalence of RAS mutation. They could be attributed to the difference in the detection method. As to PAX8/PPARγ rearrangement, Western countries overall had a much higher prevalence than Asian countries (23% vs. 4%, P<0.001), but some European countries had a low incidence, implying regional heterogeneity of PAX8/PPARγ rearrangement. A substantial lack of mutation data in FTC was found in several regions of the world such as Central Asia, Middle East, Africa, and Central and South America. Our results provide the most comprehensive global status of representative genetic alterations in FTC and highlight the similarities and differences between Asian and Western countries.
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Affiliation(s)
- Toru Odate
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Naoki Oishi
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Huy Gia Vuong
- Department of Pathology, Oklahoma University Health Sciences Center, Oklahoma City, OK, USA
| | - Kunio Mochizuki
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Tetsuo Kondo
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
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12
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Weis-Banke SE, Hübbe ML, Holmström MO, Jørgensen MA, Bendtsen SK, Martinenaite E, Carretta M, Svane IM, Ødum N, Pedersen AW, Met Ö, Madsen DH, Andersen MH. The metabolic enzyme arginase-2 is a potential target for novel immune modulatory vaccines. Oncoimmunology 2020; 9:1771142. [PMID: 32923127 PMCID: PMC7458644 DOI: 10.1080/2162402x.2020.1771142] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
One way that tumors evade immune destruction is through tumor and stromal cell expression of arginine-degrading enzyme arginase-2 (ARG2). Here we describe the existence of pro-inflammatory effector T-cells that recognize ARG2 and can directly target tumor and tumor-infiltrating cells. Using a library of 34 peptides covering the entire ARG2 sequence, we examined reactivity toward these peptides in peripheral blood mononuclear cells from cancer patients and healthy individuals. Interferon-γ ELISPOT revealed frequent immune responses against several of the peptides, indicating that ARG2–specific self-reactive T-cells are natural components of the human T-cell repertoire. Based on this, the most immunogenic ARG2 protein region was further characterized. By identifying conditions in the microenvironment that induce ARG2 expression in myeloid cells, we showed that ARG2-specific CD4T-cells isolated and expanded from a peripheral pool from a prostate cancer patient could recognize target cells in an ARG2-dependent manner. In the ‘cold’ in vivo tumor model Lewis lung carcinoma, we found that activation of ARG2-specific T-cells by vaccination significantly inhibited tumor growth. Immune-modulatory vaccines targeting ARG2 thus are a candidate strategy for cancer immunotherapy.
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Affiliation(s)
- Stine Emilie Weis-Banke
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mie Linder Hübbe
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Morten Orebo Holmström
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mia Aaboe Jørgensen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Simone Kloch Bendtsen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Evelina Martinenaite
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark.,IO Biotech ApS, Copenhagen, Denmark
| | - Marco Carretta
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Inge Marie Svane
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Niels Ødum
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | | | - Özcan Met
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Daniel Hargbøl Madsen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark
| | - Mads Hald Andersen
- National Center for Cancer Immune Therapy (CCIT-DK), Department of Oncology, Copenhagen University Hospital Herlev, Copenhagen, Denmark.,IO Biotech ApS, Copenhagen, Denmark.,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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13
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Grzywa TM, Sosnowska A, Matryba P, Rydzynska Z, Jasinski M, Nowis D, Golab J. Myeloid Cell-Derived Arginase in Cancer Immune Response. Front Immunol 2020; 11:938. [PMID: 32499785 PMCID: PMC7242730 DOI: 10.3389/fimmu.2020.00938] [Citation(s) in RCA: 232] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022] Open
Abstract
Amino acid metabolism is a critical regulator of the immune response, and its modulating becomes a promising approach in various forms of immunotherapy. Insufficient concentrations of essential amino acids restrict T-cells activation and proliferation. However, only arginases, that degrade L-arginine, as well as enzymes that hydrolyze L-tryptophan are substantially increased in cancer. Two arginase isoforms, ARG1 and ARG2, have been found to be present in tumors and their increased activity usually correlates with more advanced disease and worse clinical prognosis. Nearly all types of myeloid cells were reported to produce arginases and the increased numbers of various populations of myeloid-derived suppressor cells and macrophages correlate with inferior clinical outcomes of cancer patients. Here, we describe the role of arginases produced by myeloid cells in regulating various populations of immune cells, discuss molecular mechanisms of immunoregulatory processes involving L-arginine metabolism and outline therapeutic approaches to mitigate the negative effects of arginases on antitumor immune response. Development of potent arginase inhibitors, with improved pharmacokinetic properties, may lead to the elaboration of novel therapeutic strategies based on targeting immunoregulatory pathways controlled by L-arginine degradation.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Sosnowska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Paweł Matryba
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Laboratory of Neurobiology BRAINCITY, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
- The Doctoral School of the Medical University of Warsaw, Medical University of Warsaw, Warsaw, Poland
| | - Zuzanna Rydzynska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Marcin Jasinski
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Laboratory of Experimental Medicine, Center of New Technologies, University of Warsaw, Warsaw, Poland
- Genomic Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
- Centre of Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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14
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AATF and SMARCA2 are associated with thyroid volume in Hashimoto's thyroiditis patients. Sci Rep 2020; 10:1754. [PMID: 32019955 PMCID: PMC7000742 DOI: 10.1038/s41598-020-58457-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/13/2020] [Indexed: 12/13/2022] Open
Abstract
Thyroid volume of Hashimoto’s thyroiditis (HT) patients varies in size over the course of disease and it may reflect changes in biological function of thyroid gland. Patients with subclinical hypothyroidism predominantly have increased thyroid volume whereas patients with more pronounced hypothyroidism have smaller thyroid volumes. Suggested mechanism for thyroid atrophy is thyrocyte death due to apoptosis. We performed the first genome-wide association study (GWAS) of thyroid volume in two groups of HT patients, depending on levothyroxine (LT4) therapy, and then meta-analysed across. Study included 345 HT patients in total and 6 007 322 common autosomal genetic variants. Underlying hypothesis was that genetic components that are involved in regulation of thyroid volume display their effect in specific pathophysiologic conditions of thyroid gland of HT patients. We additionally performed immunohistochemical analysis using thyroid tissues and analysed differences in expression levels of identified proteins and apoptotic marker between HT patients and controls. We found genome-wide significant association of two loci, both involved in apoptosis, with thyroid volume of HT patients: rs7212416 inside apoptosis-antagonizing transcription factor AATF (P = 8.95 × 10−9) and rs10738556 near chromatin-remodeling SMARCA2 (P = 2.83 × 10−8). In immunohistochemical analysis we observed that HT patients with homozygous AATF risk genotypes have decreased AATF expression (0.46-fold, P < 0.0001) and increased apoptosis (3.99-fold, P = 0.0001) in comparison to controls. HT patients with heterozygous SMARCA2 genotypes have decreased SMARCA2 expression, albeit without reaching statistical significance (1.07-fold, P = 0.5876), and significantly increased apoptosis (4.11-fold, P < 0.0001). By two lines of evidence we show that two highly plausible genetic loci, AATF and SMARCA2, may be involved in determining the thyroid volume of HT patients. The results of our study significantly add to the current knowledge of disturbed biological mechanisms in thyroid gland of HT patients.
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15
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Menicali E, Guzzetti M, Morelli S, Moretti S, Puxeddu E. Immune Landscape of Thyroid Cancers: New Insights. Front Endocrinol (Lausanne) 2020; 11:637826. [PMID: 33986723 PMCID: PMC8112200 DOI: 10.3389/fendo.2020.637826] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 12/30/2020] [Indexed: 01/23/2023] Open
Abstract
Immune system plays a key role in cancer prevention as well as in its initiation and progression. During multistep development of tumors, cells must acquire the capability to evade immune destruction. Both in vitro and in vivo studies showed that thyroid tumor cells can avoid immune response by promoting an immunosuppressive microenvironment. The recruitment of immunosuppressive cells such as TAMs (tumor-associated macrophages), TAMCs (tumor-associated mast cells), MDSC (myeloid-derived suppressor cells), TANs (tumor-associated neutrophils) and Tregs (regulatory T cells) and/or the expression of negative immune checkpoints, like PD-L1 (programmed death-ligand 1), CTLA-4 (cytotoxic T-lymphocyte associated protein 4), and/or immunosuppressive enzymes, as IDO1 (indoleamine 2,3-dioxygenase 1), are just some of the mechanisms that thyroid cancer cells exploit to escape immune destruction. Some authors systematically characterized immune cell populations and soluble mediators (chemokines, cytokines, and angiogenic factors) that constitute thyroid cancer microenvironment. Their purpose was to verify immune system involvement in cancer growth and progression, highlighting the differences in immune infiltrate among tumor histotypes. More recently, some authors have provided a more comprehensive view of the relationships between tumor and immune system involved in thyroid carcinogenesis. The Cancer Genome Atlas (TCGA) delivered a large amount of data that allowed to combine information on the inflammatory microenvironment with gene expression data, genetic and clinical-pathological characteristics, and differentiation degree of papillary thyroid carcinoma (PTC). Moreover, using a new sensitive and highly multiplex analysis, the NanoString Technology, it was possible to divide thyroid tumors in two main clusters based on expression of immune-related genes. Starting from these results, the authors performed an immune phenotype analysis that allowed to classify thyroid cancers in hot, cold, or intermediate depending on immune infiltration patterns of the tumor microenvironment. The aim of this review is to provide a comprehensive and updated view of the knowledge on immune landscape of thyroid tumors. Understanding interactions between tumor and microenvironment is crucial to effectively direct immunotherapeutic approaches in the treatment of thyroid cancer, particularly for those not responsive to conventional therapies.
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16
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Zhang KK, Yu SS, Li GY, He L, Liang XQ. miR-135a deficiency inhibits the AR42J cells damage in cerulein-induced acute pancreatitis through targeting FAM129A. Pflugers Arch 2019; 471:1519-1527. [PMID: 31729558 DOI: 10.1007/s00424-019-02329-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/16/2019] [Accepted: 11/06/2019] [Indexed: 01/27/2023]
Abstract
Acute pancreatitis (AP) is a common clinical critical disease with high mortality and the exact pathogenesis is not fully elucidated. The present study aimed to uncover the function of miR-135a in the proliferation, apoptosis, and inflammatory characteristics of diseased pancreatic cells and the potential molecular mechanisms. The expression patterns of miR-135a and family with sequence similarity 129 member A (FAM129A) in patients with AP were analyzed on the basis of the GEO database. The transfection efficiency and expression level of miR-135a in AR42J cells were determined by qRT-PCR. The biological characteristics of AR42J cells treated with cerulein were detected by cell counting kit-8 (CCK-8), flow cytometry, and western blot assays. The potential interaction between miR-135a and FAM129A was confirmed by bioinformatics prediction softwares and luciferase reporter assay. MiR-135a inhibitor and pcDNA3.1-FAM129A were co-transfected to determine the regulation of miR-135a/FAM129A on inflammatory AR42J cell injury. We observed that miR-135a was highly expressed in AP samples. Depletion of miR-135a could alleviate the condition so that the AR42J cells proliferation increased, apoptosis decreased, and the expression of inflammatory cytokines enhanced. In addition, mRNA and protein expression of FAM129A were negatively regulated by miR-135a, and over-expression of FAM129A could strengthen the relief effect of miR-135a inhibitor in AP induced by cerulein. In summary, our data demonstrates that silencing miR-135a reduces AR42J cells injury and inflammatory response in AP induced by cerulein through targeting FAM129A.
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Affiliation(s)
- Kai-Kai Zhang
- Department of Emergency, The Second People's Hospital of Guiyang, Guiyang, 550023, China
| | - Shan-Shan Yu
- Department of Intensive Care Unit, The Second People's Hospital of Guiyang, Guiyang, 550023, China
| | - Gui-Yun Li
- Department of Emergency, The Second People's Hospital of Guiyang, Guiyang, 550023, China
| | - Lian He
- Department of Intensive Care Unit, The Second People's Hospital of Guiyang, Guiyang, 550023, China
| | - Xian-Quan Liang
- Department of Emergency, The Second People's Hospital of Guiyang, Guiyang, 550023, China.
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17
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Wang Y, Guan Q, Lao I, Wang L, Wu Y, Li D, Ji Q, Wang Y, Zhu Y, Lu H, Xiang J. Using deep convolutional neural networks for multi-classification of thyroid tumor by histopathology: a large-scale pilot study. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:468. [PMID: 31700904 DOI: 10.21037/atm.2019.08.54] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background To explore whether deep convolutional neural networks (DCNNs) have the potential to improve diagnostic efficiency and increase the level of interobserver agreement in the classification of thyroid nodules in histopathological slides. Methods A total of 11,715 fragmented images from 806 patients' original histological images were divided into a training dataset and a test dataset. Inception-ResNet-v2 and VGG-19 were trained using the training dataset and tested using the test dataset to determine the diagnostic efficiencies of different histologic types of thyroid nodules, including normal tissue, adenoma, nodular goiter, papillary thyroid carcinoma (PTC), follicular thyroid carcinoma (FTC), medullary thyroid carcinoma (MTC) and anaplastic thyroid carcinoma (ATC). Misdiagnoses were further analyzed. Results The total 11,715 fragmented images were divided into a training dataset and a test dataset for each pathology type at a ratio of 5:1. Using the test set, VGG-19 yielded a better average diagnostic accuracy than did Inception-ResNet-v2 (97.34% vs. 94.42%, respectively). The VGG-19 model applied to 7 pathology types showed a fragmentation accuracy of 88.33% for normal tissue, 98.57% for ATC, 98.89% for FTC, 100% for MTC, 97.77% for PTC, 100% for nodular goiter and 92.44% for adenoma. It achieved excellent diagnostic efficiencies for all the malignant types. Normal tissue and adenoma were the most challenging histological types to classify. Conclusions The DCNN models, especially VGG-19, achieved satisfactory accuracies on the task of differentiating thyroid tumors by histopathology. Analysis of the misdiagnosed cases revealed that normal tissue and adenoma were the most challenging histological types for the DCNN to differentiate, while all the malignant classifications achieved excellent diagnostic efficiencies. The results indicate that DCNN models may have potential for facilitating histopathologic thyroid disease diagnosis.
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Affiliation(s)
- Yunjun Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Qing Guan
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Iweng Lao
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Li Wang
- Depertment of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yi Wu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Duanshu Li
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Qinghai Ji
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yu Wang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yongxue Zhu
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Hongtao Lu
- Depertment of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jun Xiang
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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18
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Sisdelli L, Cordioli MICV, Vaisman F, Moraes L, Colozza-Gama GA, Alves PAG, Araújo ML, Alves MTS, Monte O, Longui CA, Cury AN, Carvalheira G, Cerutti JM. AGK-BRAF is associated with distant metastasis and younger age in pediatric papillary thyroid carcinoma. Pediatr Blood Cancer 2019; 66:e27707. [PMID: 30924609 DOI: 10.1002/pbc.27707] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/24/2019] [Accepted: 02/23/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND The incidence of thyroid carcinoma has increased in most populations, including pediatric patients. The increase is almost exclusively due to an increase in the incidence of papillary thyroid carcinoma (PTC). Genetic alterations leading to mitogen-activated protein kinase (MAPK) pathway activation are highly prevalent in PTC, with BRAF V600E mutation being the most common event in adult PTC. Although a lower prevalence of BRAF V600E had been reported among pediatric patients, a higher prevalence of BRAF fusion has been identified in both radiation-exposed and sporadic pediatric PTC. However, little is known about the prognostic implications of BRAF fusions in pediatric PTC. PROCEDURE In this study, we investigated the prevalence of BRAF alterations (AGK-BRAF fusion and BRAF V600E mutation) in a large set of predominantly sporadic pediatric PTC cases and correlate with clinicopathological features. Somatic AGK-BRAF fusion was investigated by RT-PCR and confirmed by FISH break-apart. The BRAF V600E mutation was screened using Sanger sequencing. RESULTS AGK-BRAF fusion, found in 19% of pediatric PTC patients, was associated with distant metastasis and younger age. Conversely, the BRAF V600E, found in 15% of pediatric PTC patients, was correlated with older age and larger tumor size. CONCLUSION Collectively, our results advance knowledge concerning genetic bases of pediatric thyroid carcinoma, with potential implications for diagnosis, prognosis, and therapeutic approaches.
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Affiliation(s)
- Luiza Sisdelli
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Maria Isabel Cunha Vieira Cordioli
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Lais Moraes
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Gabriel Avelar Colozza-Gama
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | | | - Osmar Monte
- Department of Pediatrics, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Carlos Alberto Longui
- Department of Pediatrics, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Adriano Namo Cury
- Departmentof Medicine, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Gianna Carvalheira
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, Brazil
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van Gerwen MAG, Tuminello S, Riggins GJ, Mendes TB, Donovan M, Benn EKT, Genden E, Cerutti JM, Taioli E. Molecular Study of Thyroid Cancer in World Trade Center Responders. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E1600. [PMID: 31067756 PMCID: PMC6539993 DOI: 10.3390/ijerph16091600] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 11/26/2022]
Abstract
Thyroid cancer incidence is higher in World Trade Center (WTC) responders compared with the general population. It is unclear whether this excess in thyroid cancer is associated with WTC-related exposures or if instead there is an over-diagnosis of malignant thyroid cancer among WTC first responders due to enhanced surveillance and physician bias. To maximize diagnostic yield and determine the false positive rate for malignancy, the histological diagnoses of thyroid cancer tumors from WTC responders and age, gender, and histology matched non-WTC thyroid cancer cases were evaluated using biomarkers of malignancy. Using a highly accurate panel of four biomarkers that are able to distinguish benign from malignant thyroid cancer, our results suggest that over-diagnosis by virtue of misdiagnosis of a benign tumor as malignant does not explain the increased incidence of thyroid cancer observed in WTC responders. Therefore, rather than over-diagnosis due to physician bias, the yearly screening visits by the World Trade Center Health Program are identifying true cases of thyroid cancer. Continuing regular screening of this cohort is thus warranted.
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Affiliation(s)
- Maaike A G van Gerwen
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Stephanie Tuminello
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Gregory J Riggins
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA.
| | - Thais B Mendes
- Division of Genetics, Universidade Federal de São Paulo, São Paulo 04039-032, Brazil.
| | - Michael Donovan
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Emma K T Benn
- Department of Population Health Science and Policy, Center for Biostatistics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Eric Genden
- Department of Otolaryngology- Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Janete M Cerutti
- Division of Genetics, Universidade Federal de São Paulo, São Paulo 04039-032, Brazil.
| | - Emanuela Taioli
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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20
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Feng X, Yan N, Sun W, Zheng S, Jiang S, Wang J, Guo C, Hao L, Tian Y, Liu S, Sun MZ. miR-4521-FAM129A axial regulation on ccRCC progression through TIMP-1/MMP2/MMP9 and MDM2/p53/Bcl2/Bax pathways. Cell Death Discov 2019; 5:89. [PMID: 31016032 PMCID: PMC6465337 DOI: 10.1038/s41420-019-0167-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/12/2019] [Accepted: 03/18/2019] [Indexed: 12/11/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most aggressive RCC subtype with high metastasis, chemotherapy and radiotherapy resistance, and poor prognosis. This study attempted to establish the deregulations of miR-4521 and FAM129A together with their correlation to and mechanism of regulation of ccRCC development and progression. FAM129A acted as tumor promotor and miR-4521 acted as a suppressor in ccRCC. As measured in surgical tumorous tissues from ccRCC patients, FAM129A overexpression and miR-4521 deficiency together contributed to ccRCC progression by promoting advances in patients' TNM stage and Fuhrman grade. Both the FAM129A knockdown and miR-4521 overexpression could reduce the in vitro migration and invasion abilities of renal cancer cells 786-O and ACHN, through the TIMP-1/MMP2/MMP9 pathway and could decrease their proliferation by promoting their apoptosis through the MDM2/p53/Bcl2/Bax pathway. By directly targeting the 3'-UTR domain of FAM129A, miR-4521 was negatively correlated with FAM129A/FAM129A levels in ccRCC progression and renal cancer cell malignancies. This work establishes the miR-4521-FAM129A axial regulation mechanism in ccRCC. Micro-4521 deficiency leads to FAM129A/FAM129A upregulation, which synergistically enhances the migration and invasion of renal cancer cells due to the induced decrease of TIMP-1 and increases of MMP2 and MMP9, and increases their growth through escaping apoptosis by suppressing p53 by way of upregulation of induced MDM2. The current work provides new clues to assist fundamental research into the diagnosis and treatment of ccRCC.
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Affiliation(s)
- Xue Feng
- 1Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Naimeng Yan
- 2Department of Biochemistry, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Weibin Sun
- 3Department of Urology, The Second Affiliated Hospital, Dalian Medical University, 116027 Dalian, China
| | - Shanliang Zheng
- 1Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Sixiong Jiang
- 3Department of Urology, The Second Affiliated Hospital, Dalian Medical University, 116027 Dalian, China
| | - Jinxia Wang
- 1Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Chunmei Guo
- 1Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Lihong Hao
- 4Department of Anatomy, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Yuxiang Tian
- 2Department of Biochemistry, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Shuqing Liu
- 2Department of Biochemistry, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
| | - Ming-Zhong Sun
- 1Department of Biotechnology, College of Basic Medical Sciences, Dalian Medical University, 116044 Dalian, China
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21
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Delfín DA, DeAguero JL, McKown EN. The Extracellular Matrix Protein ABI3BP in Cardiovascular Health and Disease. Front Cardiovasc Med 2019; 6:23. [PMID: 30923710 PMCID: PMC6426741 DOI: 10.3389/fcvm.2019.00023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/20/2019] [Indexed: 01/31/2023] Open
Abstract
ABI3BP is a relatively newly identified protein whose general biological functions are not yet fully defined. It is implicated in promoting cellular senescence and cell-extracellular matrix interactions, both of which are of vital importance in the cardiovascular system. ABI3BP has been shown in multiple studies to be expressed in the heart and vasculature, and to have a role in normal cardiovascular function and disease. However, its precise role in the cardiovascular system is not known. Because ABI3BP is present in the cardiovascular system and is altered in cardiovascular disease states, further investigation into ABI3BP's biological and biochemical importance in cardiovascular health and disease is warranted.
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Affiliation(s)
- Dawn A. Delfín
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States
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22
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Nozima BH, Mendes TB, Pereira GJDS, Araldi RP, Iwamura ESM, Smaili SS, Carvalheira GMG, Cerutti JM. FAM129A regulates autophagy in thyroid carcinomas in an oncogene-dependent manner. Endocr Relat Cancer 2019; 26:227-238. [PMID: 30400008 DOI: 10.1530/erc-17-0530] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 09/25/2018] [Indexed: 01/11/2023]
Abstract
We previously proposed that high expression of FAM129A can be used as a thyroid carcinoma biomarker in preoperative diagnostic exams of thyroid nodules. Here, we identify that FAM129A expression is increased under nutrient and growth factor depletion in a normal thyroid cell line (PCCL3), overlapping with increased expression of autophagy-related protein and inhibition of AKT/mTOR/p70S6K. Supplementation of insulin, TSH and serum to the medium was able to reduce the expression of both FAM129A and autophagy-related protein and reestablish the AKT/mTOR/p70S6K axis. To determine the direct role of FAM129A on autophagy, FAM129A was transfected into PCCL3 cells. Its overexpression induced autophagic vesicles formation, evidenced by transmission electron microscopy. Co-expression of FAM129A and mCherry-EGFP-LC3B in PCCL3 showed an increased yellow puncta formation, suggesting that FAM129Ainduces autophagy. To further confirm its role on autophagy, we knockdown FAM129A in two thyroid carcinoma cell lines (TPC1 and FTC-236). Unexpectedly, FAM129A silencing increased autophagic flux, suggesting that FAM129A inhibits autophagy in these models. We next co-transfected PCCL3 cells with FAM129A and RET/PTC1 and tested autophagy in this context. Co-expression of FAM129A and RET/PTC1 oncogene in PCCL3 cells, inhibited RET/PTC1-induced autophagy. Together, our data suggest that, in normal cells FAM129A induces autophagy in order to maintain cell homeostasis and provide substrates under starvation conditions. Instead, in cancer cells, decreased autophagy may help the cells to overcome cell death. FAM129A regulates autophagy in a cell- and/or context-dependent manner. Our data reinforce the concept that autophagy can be used as a strategy for cancer treatment.
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Affiliation(s)
- Bruno Heidi Nozima
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Thais Biude Mendes
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Gustavo José da Silva Pereira
- Department of Pharmacology, Calcium Signaling and Cell Death Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Rodrigo Pinheiro Araldi
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | | | - Soraya Soubhi Smaili
- Department of Pharmacology, Calcium Signaling and Cell Death Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Gianna Maria Griz Carvalheira
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
| | - Janete Maria Cerutti
- Division of Genetics, Department of Morphology and Genetics, Genetic Bases of Thyroid Tumors Laboratory, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
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23
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Zhang ZZ, Chen Q, Kong CY, Li ZM, Wang LS. Circulating thyroid stimulating hormone receptor messenger RNA and differentiated thyroid cancer: A diagnostic meta-analysis. Oncotarget 2018; 8:6623-6629. [PMID: 28036261 PMCID: PMC5351657 DOI: 10.18632/oncotarget.14251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 12/12/2016] [Indexed: 01/01/2023] Open
Abstract
Thyroid stimulating hormone receptor messenger RNA (TSHR-mRNA) is over-expressed in thyroid cancer patients, which indicates that TSHR-mRNA is a potential biomarker of thyroid cancer. However, system evaluation for TSHR-mRNA as a diagnostic biomarker of thyroid cancer is deficient. The performance of TSHR-mRNA for thyroid cancer diagnosis was evaluated in this study. Three common international databases as well as a Chinese database were applied for literature researching. Quality assessment of the included literatures was conducted by the QUADAS-2 tool. Totally, 1027 patients from nine studies eligible for the meta-analysis were included in this study. Global sensitivity and specificity for the positivity of TSHR-mRNA in the thyroid cancer diagnosis is 72% and 82%. The value of AUC for this test performance was 0.84. Our meta-analysis suggests that TSHR-mRNA might be a potential biomarker to complete present diagnostic methods for early and precision diagnosis of thyroid cancer. Notably, this findings need validation thorough large-scale clinical studies.
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Affiliation(s)
- Zhen-Zhen Zhang
- Institute of Biomedical Sciences, Minhang Hospital, Fudan University, Shanghai, P.R. China.,School of Public Health Taishan Medical University, Shandong, P.R. China
| | - Qiang Chen
- School of Public Health Taishan Medical University, Shandong, P.R. China
| | - Chao-Yue Kong
- Institute of Biomedical Sciences, Minhang Hospital, Fudan University, Shanghai, P.R. China
| | - Zhan-Ming Li
- Institute of Biomedical Sciences, Minhang Hospital, Fudan University, Shanghai, P.R. China
| | - Li-Shun Wang
- Institute of Biomedical Sciences, Minhang Hospital, Fudan University, Shanghai, P.R. China
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24
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Chi J, Zheng X, Gao M, Zhao J, Li D, Li J, Dong L, Ruan X. Integrated microRNA-mRNA analyses of distinct expression profiles in follicular thyroid tumors. Oncol Lett 2017; 14:7153-7160. [PMID: 29344146 PMCID: PMC5754833 DOI: 10.3892/ol.2017.7146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/10/2017] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs/miRs) are small non-coding RNAs identified in plants, animals and certain viruses; they function in RNA silencing and post-transcriptional regulation of gene expression. miRNAs also serve an important role in the pathogenesis, diagnosis and treatment of tumors. However, few studies have investigated the role of miRNAs in thyroid tumors. In the present study, the expression of miRNA and mRNA was compared between follicular thyroid carcinoma (FTC) and follicular thyroid adenoma (FA) samples, and then miRNA-mRNA regulatory network analysis was performed. Microarray datasets (GSE29315 and GSE62054) were downloaded from the Gene Expression Omnibus, and profiling data were processed with R software. Differentially expressed miRNAs (DEMs) and differentially expressed genes (DEGs) were determined, and Gene Ontology enrichment analysis was subsequently performed for DEGs using the Database for Annotation, Visualization and Integrated Discovery. The target genes of the DEMs were identified with miRWalk, miRecords and TarMir databases. Network analysis of the DEMs and DEMs-targeted DEGs was performed using Cytoscape software. In GSE62054, 23 downregulated and 9 upregulated miRNAs were identified. In GSE29315, 42 downregulated and 44 upregulated mRNAs were identified. A total of 36 miRNA-gene pairs were also identified. Network analysis indicated a co-regulatory association between miR-296-5p, miR-10a, miR-139-5p, miR-452, miR-493, miR-7, miR-137, miR-144, miR-145 and corresponding targeted mRNAs, including TNF receptor superfamily member 11b, benzodiazepine receptor (peripheral) -associated protein 1, and transforming growth factor β receptor 2. These results suggest that miRNA-mRNAs networks serve an important role in the pathogenesis, diagnosis and treatment of FTC and FA.
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Affiliation(s)
- Jiadong Chi
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China.,Department of Graduate College, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xiangqian Zheng
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Ming Gao
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Jingzhu Zhao
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Dapeng Li
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Jiansen Li
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Li Dong
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
| | - Xianhui Ruan
- Department of Thyroid and Neck Tumors, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center of Cancer, Tianjin 300060, P.R. China
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25
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Xia J, Chen H, Li Q, Zhou M, Chen L, Cai Z, Fang Y, Zhou H. Ultrasound-based differentiation of malignant and benign thyroid Nodules: An extreme learning machine approach. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2017; 147:37-49. [PMID: 28734529 DOI: 10.1016/j.cmpb.2017.06.005] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 04/23/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND AND OBJECTIVES It is important to be able to accurately distinguish between benign and malignant thyroid nodules in order to make appropriate clinical decisions. The purpose of this study was to improve the effectiveness and efficiency for discriminating the malignant from benign thyroid cancers based on the Ultrasonography (US) features. METHODS There were 114 benign nodules in 106 patients (82 women and 24 men) and 89 malignant nodules in 81 patients (69 women and 12 men) included in this study. The potential of extreme learning machine (ELM) has been explored for the first time to discriminate malignant and benign thyroid nodules based on the sonographic features in ultrasound images. The influence of two key parameters (the number of hidden neurons and type of activation function) on the performance of ELM was investigated. The relationship between feature subsets obtained by the feature selection method and the classification performance of ELM was also examined. A real-life dataset was used to evaluate the effectiveness of the proposed method in terms of classification accuracy, sensitivity, specificity, and area under the ROC (receiver operating characteristic) curve (AUC). RESULTS The results demonstrate that there are significant differences between the malignant and benign thyroid nodules (p-value<0.01), the most discriminative features are echogenicity, calcification, margin, composition and shape. Compared with other methods, the proposed method not only has achieved very promising classification accuracy via 10-fold cross-validation (CV) scheme, but also greatly reduced the computational cost compared to other counterparts. The proposed ELM-based approach achieves 87.72% ACC, 0.8672 AUC, 78.89% sensitivity, and 94.55% specificity. CONCLUSIONS Based on the empirical analysis, the proposed ELM-based approach for thyroid cancer detection has promising potential in clinical use, and it can be of assistance as an optional tool for the clinicians.
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Affiliation(s)
- Jianfu Xia
- Department of General Surgery, The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital), Wenzhou, Zhejiang, 325000, China
| | - Huiling Chen
- College of Physics and Electronic Information, Wenzhou University, Wenzhou, Zhejiang, 325035, China.
| | - Qiang Li
- College of Physics and Electronic Information, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Minda Zhou
- Department of Ultrasound, The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital), Wenzhou, Zhejiang, 325000, China
| | - Limin Chen
- Department of Ultrasound, The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital), Wenzhou, Zhejiang, 325000, China
| | - Zhennao Cai
- College of Physics and Electronic Information, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Yang Fang
- Department of General Surgery, The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital), Wenzhou, Zhejiang, 325000, China
| | - Hong Zhou
- Department of General Surgery, The Dingli Clinical Institute of Wenzhou Medical University(Wenzhou Central Hospital), Wenzhou, Zhejiang, 325000, China
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26
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The uS8, uS4, eS31, and uL14 Ribosomal Protein Genes Are Dysregulated in Nasopharyngeal Carcinoma Cell Lines. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4876954. [PMID: 28791303 PMCID: PMC5534291 DOI: 10.1155/2017/4876954] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 06/14/2017] [Indexed: 11/18/2022]
Abstract
The association of ribosomal proteins with carcinogenesis of nasopharyngeal carcinoma (NPC) has been established in a limited subset of ribosomal protein genes. To date, three ribosomal protein genes, eL27 (L27), eL41 (L41), and eL43 (L37a), have been found to be differentially expressed in cell lines derived from NPC tumors. This raises the possibility of more ribosomal protein genes that could be associated with NPC. In this study, we investigated the expression profiles of eight ribosomal protein genes, uS8 (S8), uS4 (S9), eS31 (S27a), eL6 (L6), eL18 (L18), uL14 (L23), eL24 (L24), and eL30 (L30), in six NPC-derived cell lines (HONE-1, SUNE1, HK1, TW01, TW04, and C666-1). Their expression levels were compared with that of a nonmalignant nasopharyngeal epithelial cell line (NP69) using quantitative real-time PCR (RT-qPCR) assay. Of the eight genes studied, the expressions of four ribosomal protein genes uS8 (S8), uS4 (S9), eS31 (S27a), and uL14 (L23) were found to be significantly downregulated in NPC cell lines relative to NP69. Our findings provide novel empirical evidence of these four ribosomal protein genes as NPC-associated genetic factors and reinforce the relevance of ribosomal proteins in the carcinogenesis of nasopharyngeal cancer.
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Gene Expression (mRNA) Markers for Differentiating between Malignant and Benign Follicular Thyroid Tumours. Int J Mol Sci 2017; 18:ijms18061184. [PMID: 28574441 PMCID: PMC5486007 DOI: 10.3390/ijms18061184] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 01/21/2023] Open
Abstract
Distinguishing between follicular thyroid cancer (FTC) and follicular thyroid adenoma (FTA) constitutes a long-standing diagnostic problem resulting in equivocal histopathological diagnoses. There is therefore a need for additional molecular markers. To identify molecular differences between FTC and FTA, we analyzed the gene expression microarray data of 52 follicular neoplasms. We also performed a meta-analysis involving 14 studies employing high throughput methods (365 follicular neoplasms analyzed). Based on these two analyses, we selected 18 genes differentially expressed between FTA and FTC. We validated them by quantitative real-time polymerase chain reaction (qRT-PCR) in an independent set of 71 follicular neoplasms from formaldehyde-fixed paraffin embedded (FFPE) tissue material. We confirmed differential expression for 7 genes (CPQ, PLVAP, TFF3, ACVRL1, ZFYVE21, FAM189A2, and CLEC3B). Finally, we created a classifier that distinguished between FTC and FTA with an accuracy of 78%, sensitivity of 76%, and specificity of 80%, based on the expression of 4 genes (CPQ, PLVAP, TFF3, ACVRL1). In our study, we have demonstrated that meta-analysis is a valuable method for selecting possible molecular markers. Based on our results, we conclude that there might exist a plausible limit of gene classifier accuracy of approximately 80%, when follicular tumors are discriminated based on formalin-fixed postoperative material.
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28
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Wang QX, Chen ED, Cai YF, Li Q, Jin YX, Jin WX, Wang YH, Zheng ZC, Xue L, Wang OC, Zhang XH. A panel of four genes accurately differentiates benign from malignant thyroid nodules. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:169. [PMID: 27793213 PMCID: PMC5084448 DOI: 10.1186/s13046-016-0447-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/22/2016] [Indexed: 12/11/2022]
Abstract
Background Clinicians are confronted with an increasing number of patients with thyroid nodules. Reliable preoperative diagnosis of thyroid nodules remains a challenge because of inconclusive cytological examination of fine-needle aspiration biopsies. Although molecular analysis of thyroid tissue has shown promise as a diagnostic tool in recent years, it has not been successfully applied in routine clinical use, particularly in Chinese patients. Methods Whole-transcriptome sequencing of 19 primary papillary thyroid cancer (PTC) samples and matched adjacent normal thyroid tissue (NT) samples were performed. Bioinformatics analysis was carried out to identify candidate diagnostic genes. Then, RT-qPCR was performed to evaluate these candidate genes, and four genes were finally selected. Based on these four genes, diagnostic algorithm was developed (training set: 100 thyroid cancer (TC) and 65 benign thyroid lesions (BTL)) and validated (independent set: 123 TC and 81 BTL) using the support vector machine (SVM) approach. Results We discovered four genes, namely fibronectin 1 (FN1), gamma-aminobutyric acid type A receptor beta 2 subunit (GABRB2), neuronal guanine nucleotide exchange factor (NGEF) and high-mobility group AT-hook 2 (HMGA2). A SVM model with these four genes performed with 97.0 % sensitivity, 93.8 % specificity, 96.0 % positive predictive value (PPV), and 95.3 % negative predictive value (NPV) in training set. For additional independent validation, it also showed good performance (92.7 % sensitivity, 90.1 % specificity, 93.4 % PPV, and 89.0 % NPV). Conclusions Our diagnostic panel can accurately distinguish benign from malignant thyroid nodules using a simple and affordable method, which may have daily clinical application in the near future. Electronic supplementary material The online version of this article (doi:10.1186/s13046-016-0447-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Qing-Xuan Wang
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - En-Dong Chen
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Ye-Feng Cai
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Quan Li
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Yi-Xiang Jin
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Wen-Xu Jin
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Ying-Hao Wang
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Zhou-Ci Zheng
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Lu Xue
- Department of Otolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200000, China
| | - Ou-Chen Wang
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China
| | - Xiao-Hua Zhang
- Department of Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, China.
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Carvalheira G, Nozima BH, Cerutti JM. microRNA-106b-mediated down-regulation of C1orf24 expression induces apoptosis and suppresses invasion of thyroid cancer. Oncotarget 2016; 6:28357-70. [PMID: 26317551 PMCID: PMC4695065 DOI: 10.18632/oncotarget.4947] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 07/02/2015] [Indexed: 01/10/2023] Open
Abstract
We previously showed that C1orf24 expression is increased in thyroid carcinomas. Nonetheless, the mechanism underlying C1orf24 deregulation is not fully understood. It has been widely demonstrated that microRNAs are involved in post-transcriptional gene regulation in several diseases, including cancer. Using in silico prediction approach, five microRNAs that bind to the 3'-untranslated region (3'-UTR) of C1orf24 were identified. The expression of two selected microRNAs (miR-17-5p, miR-106b) and the expression of C1orf24 were tested in 48 benign and malignant thyroid lesions and in five thyroid carcinoma cell lines. miR-106b was down-regulated in thyroid cancer specimens and thyroid carcinoma cell lines, while C1orf24 expression was markedly increased. To demonstrate that miR-106b reduces C1orf24 expression, follicular (WRO) and papillary (TPC1) thyroid carcinoma cell lines were transiently transfected with miR-106b mimic. Ectopic expression of the miR-106b mimic significantly inhibits C1orf24 mRNA and protein expression in both WRO and TPC1 cells. Dual-luciferase report assays demonstrated that miR-106b directly targets C1orf24 by binding its 3'-UTR. Moreover, miR-106b-mediated down-regulation of C1orf24 expression increased apoptosis and inhibited migration. We additionally demonstrated that siRNA against C1orf24 significantly decreased its expression, inhibited cell migration and cell cycle progression while induced apoptosis. In summary, our findings not only provide new insights into molecular mechanism associated with C1orf24 overexpression in thyroid carcinomas but also show that C1orf24 might increase proliferation and cell migration. Thus, decreasing C1orf24 levels, by restoring miR-106b function, may have therapeutic implications.
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Affiliation(s)
- Gianna Carvalheira
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, SP, Brazil
| | - Bruno Heidi Nozima
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, SP, Brazil
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, SP, Brazil
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Cordioli MICV, Moraes L, Carvalheira G, Sisdelli L, Alves MTS, Delcelo R, Monte O, Longui CA, Cury AN, Cerutti JM. AGK-BRAF gene fusion is a recurrent event in sporadic pediatric thyroid carcinoma. Cancer Med 2016; 5:1535-41. [PMID: 27037835 PMCID: PMC4944880 DOI: 10.1002/cam4.698] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 01/22/2016] [Accepted: 02/16/2016] [Indexed: 01/24/2023] Open
Abstract
Thyroid cancer is the fastest increasing cancer worldwide in all age groups. Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer in both adults and children. PTC genomic landscape has been extensively studied in adults, but information regarding sporadic pediatric patients is lacking. Although BRAF V600E mutation is highly prevalent in adults, this mutation is uncommon in pediatric cases. As adult and pediatric PTC is a mitogen‐activated protein kinase‐driven cancer, this altered pathway might be activated by different genetic events. The aim of this study was to investigate the occurrence of AGK‐BRAF fusion gene, recently described in radiation‐exposed pediatric PTC, in a cohort of exclusively sporadic pediatric PTC. The series consisted of 30 pediatric PTC younger than 18 years of age at the time of diagnosis and 15 matched lymph node metastases (LNM). Primary tumors and matched LNM were screened for the presence of the AGK‐BRAF fusion transcript by RT‐PCR. To confirm the identity of the amplified products, randomly selected samples positive for the presence of the fusion transcripts were sequenced. Moreover, BRAF dual‐color, break‐apart probes confirmed BRAF rearrangement. Overall, the AGK‐BRAF fusion gene was detected in 10% (3/30) of primary tumors. For one of these cases, paired LNM was also available, which also shows the presence of AGK‐BRAF fusion gene. This study described, for the first time, the presence of AGK‐BRAF in sporadic pediatric PTC. Understanding the molecular events underlying pediatric PTC may improve preoperative diagnosis, allow molecular prognostication and define a therapeutic approach toward sporadic PTC patients.
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Affiliation(s)
- Maria Isabel C V Cordioli
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Lais Moraes
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Gianna Carvalheira
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Luiza Sisdelli
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Maria Teresa S Alves
- Department of Pathology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Rosana Delcelo
- Department of Pathology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Osmar Monte
- Department of Pediatrics, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Carlos A Longui
- Department of Pediatrics, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Adriano N Cury
- Department of Medicine, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil
| | - Janete M Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Chang Y, Paul AK, Kim N, Baek JH, Choi YJ, Ha EJ, Lee KD, Lee HS, Shin D, Kim N. Computer-aided diagnosis for classifying benign versus malignant thyroid nodules based on ultrasound images: A comparison with radiologist-based assessments. Med Phys 2016; 43:554. [DOI: 10.1118/1.4939060] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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de Oliveira DR, Zamberlam CR, Rêgo GM, Cavalheiro A, Cerutti JM, Cerutti SM. Effects of a Flavonoid-Rich Fraction on the Acquisition and Extinction of Fear Memory: Pharmacological and Molecular Approaches. Front Behav Neurosci 2016; 9:345. [PMID: 26778988 PMCID: PMC4700274 DOI: 10.3389/fnbeh.2015.00345] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 11/23/2015] [Indexed: 11/13/2022] Open
Abstract
The effects of flavonoids have been correlated with their ability to modulate the glutamatergic, serotoninergic, and GABAergic neurotransmission; the major targets of these substances are N-methyl-D-aspartic acid receptor (NMDARs), serotonin type1A receptor (5-HT1ARs), and the gamma-aminobutyric acid type A receptors (GABAARs). Several studies showed that these receptors are involved in the acquisition and extinction of fear memory. This study assessed the effects of treatment prior to conditioning with a flavonoid-rich fraction from the stem bark of Erythrina falcata (FfB) on the acquisition and extinction of the conditioned suppression following pharmacological manipulations and on gene expression in the dorsal hippocampus (DH). Adult male Wistar rats were treated before conditioned fear with FfB, vehicle, an agonist or antagonist of the 5-HT1AR, GABAARs or the GluN2B-NMDAR or one of these antagonists before FfB treatment. The effects of these treatments on fear memory retrieval, extinction training and extinction retrieval were evaluated at 48, 72, and 98 h after conditioning, respectively. We found that activation of GABAARs and inactivation of GluN2B-NMDARs play important roles in the acquisition of lick response suppression. FfB reversed the effect of blocking GluN2B-NMDARs on the conditioned fear and induced the spontaneous recovery. Blocking the 5-HT1AR and the GluN2B-NMDAR before FfB treatment seemed to be associated with weakening of the spontaneous recovery. Expression of analysis of DH samples via qPCR showed that FfB treatment resulted in the overexpression of Htr1a, Grin2a, Gabra5, and Erk2 after the retention test and of Htr1a and Erk2 after the extinction retention test. Moreover, blocking the 5-HT1ARs and the GluN2B-NMDARs before FfB treatment resulted in reduced Htr1a and Grin2b expression after the retention test, but played a distinct role in Grin2a and Erk2 expression, according session evaluated. We show for the first time that the serotoninergic and glutamatergic receptors are important targets for the effect of FfB on the conditioned fear and spontaneous recovery, in which the ERK signaling pathway appears to be modulated. Further, these results provide important information regarding the role of the DH in conditioned suppression. Taken together, our data suggest that FfB represents a potential therapy for preventing or treating memory impairments.
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Affiliation(s)
- Daniela R de Oliveira
- Cellular and Behavioral Pharmacology Laboratory, Department of Biological Science, Universidade Federal de São PauloSão Paulo, Brazil; Genetic Bases of Thyroid Tumor Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São PauloSão Paulo, Brazil
| | - Claudia R Zamberlam
- Cellular and Behavioral Pharmacology Laboratory, Department of Biological Science, Universidade Federal de São PauloSão Paulo, Brazil; Genetic Bases of Thyroid Tumor Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São PauloSão Paulo, Brazil
| | - Gizelda M Rêgo
- Department of Forestry Colombo, Brazilian Agricultural Research Corporation Colombo, Brazil
| | - Alberto Cavalheiro
- Institute of Chemistry, Nuclei of Bioassay, Biosynthesis and Ecophysiology of Natural Products, São Paulo State University, Universidade Estadual Paulista Araraquara, Brazil
| | - Janete M Cerutti
- Genetic Bases of Thyroid Tumor Laboratory, Division of Genetics, Department of Morphology and Genetics, Universidade Federal de São Paulo São Paulo, Brazil
| | - Suzete M Cerutti
- Cellular and Behavioral Pharmacology Laboratory, Department of Biological Science, Universidade Federal de São Paulo São Paulo, Brazil
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Aliyev A, Patel J, Brainard J, Gupta M, Nasr C, Hatipoglu B, Siperstein A, Berber E. Diagnostic accuracy of circulating thyrotropin receptor messenger RNA combined with neck ultrasonography in patients with Bethesda III–V thyroid cytology. Surgery 2016; 159:113-7. [DOI: 10.1016/j.surg.2015.06.063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 05/10/2015] [Accepted: 06/24/2015] [Indexed: 01/21/2023]
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Cordioli MICV, Moraes L, Alves MTDS, Delcelo R, Monte O, Longui CA, Cury AN, Cerutti JM. Thyroid-Specific Genes Expression Uncovered Age-Related Differences in Pediatric Thyroid Carcinomas. Int J Endocrinol 2016; 2016:1956740. [PMID: 27022395 PMCID: PMC4789067 DOI: 10.1155/2016/1956740] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 01/28/2016] [Indexed: 11/17/2022] Open
Abstract
Despite a more advanced stage of disease at presentation, a better response to radioiodine (RAI) therapy and a reduced overall mortality have been reported in pediatric differentiated thyroid cancer (DTC) in comparison to adult DTC. Few studies suggested that the better response to RAI therapy in pediatric patients might be associated with an increased expression of NIS. However, a marked heterogeneity within the pediatric group has been recognized. Children (<10 years old) usually present a more aggressive disease than adolescents (≥10-18 years old). By analyzing the expression of thyroid-specific genes in 38 sporadic pediatric tumors, we show that the expression of NIS, PDS, and TSHR was lower in children than adolescents (P < 0.05). A linear regression confirmed the association between NIS expression and age. Most significantly, NIS was expressed at similar levels in DTC from children and adults, whereas PDS and TSHR expression was even lower in DTC from children, compared to adolescents and adults. Our data suggest that biological behaviors of DTC in adolescents might differ from those in children and adults. Therefore, the premise that the expression of thyroid-specific genes is higher in tumors from pediatric patients than in adults is not entirely true and might be too oversimplified.
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Affiliation(s)
- Maria Isabel Cunha Vieira Cordioli
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, 04039-032 São Paulo, SP, Brazil
| | - Lais Moraes
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, 04039-032 São Paulo, SP, Brazil
| | - Maria Teresa de Seixas Alves
- Pediatric Section, Department of Pathology, Universidade Federal de São Paulo, Rua Botucatu 740, 04023-900 São Paulo, SP, Brazil
| | - Rosana Delcelo
- Thyroid Section, Department of Pathology, Universidade Federal de São Paulo, Rua Botucatu 740, 04023-900 São Paulo, SP, Brazil
| | - Osmar Monte
- Molecular Medicine Laboratory, Irmandade da Santa Casa de Misericórdia de São Paulo, Rua Dr. Cesário Mota Jr. 112, 01221-020 São Paulo, SP, Brazil
| | - Carlos Alberto Longui
- Molecular Medicine Laboratory, Irmandade da Santa Casa de Misericórdia de São Paulo, Rua Dr. Cesário Mota Jr. 112, 01221-020 São Paulo, SP, Brazil
| | - Adriano Namo Cury
- Division of Endocrinology, Irmandade da Santa Casa de Misericórdia de São Paulo, Rua Dr. Cesário Mota Jr. 112, 01221-020 São Paulo, SP, Brazil
| | - Janete Maria Cerutti
- Genetic Bases of Thyroid Tumors Laboratory, Division of Genetics, Department of Morphology and Genetics and Division of Endocrinology, Department of Medicine, Universidade Federal de São Paulo, Pedro de Toledo 669, 11 Andar, 04039-032 São Paulo, SP, Brazil
- *Janete Maria Cerutti:
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Song G, Xue F, Zhang C. A Model Using Texture Features to Differentiate the Nature of Thyroid Nodules on Sonography. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2015; 34:1753-1760. [PMID: 26307120 DOI: 10.7863/ultra.15.14.10045] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/28/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To evaluate the use of texture-based gray-level co-occurrence matrix (GLCM) features extracted from thyroid sonograms in building prediction models to determine the nature of thyroid nodules. METHODS A GLCM was used to extract the texture features of 155 sonograms of thyroid nodules (76 benign and 79 malignant). The GLCM features included energy, contrast, correlation, sum of squares, inverse difference moment, sum average, sum variance, sum entropy, entropy, difference variance, difference entropy, information measures of correlation, and maximal correlation coefficient. The texture features extracted by the GLCM were used to build 6 different statistical models, including support vector machine, random tree, random forest, boost, logistic, and artificial neural network models. The models' performances were evaluated by 10-fold cross-validation combining a receiver operating characteristic curve, indices of accuracy, true-positive rate, false-positive rate, sensitivity, specificity, precision, recall, F-measure, and area under the receiver operating characteristic curve. External validation was used to examine the stability of the model that showed the best performance. RESULTS The logistic model showed the best performance, according to 10-fold cross-validation, among the 6 models, with the highest area under the curve (0.84), accuracy (78.5%), true-positive rate (0.785), sensitivity (0.789), specificity (0.785), precision (0.789), recall (0.785), and F-measure (0.784), as well as the lowest false-positive rate (0.215). The external validation results showed that the logistic model was stable. CONCLUSIONS Gray-level co-occurrence matrix texture features extracted from sonograms of thyroid nodules coupled with a logistic model are useful for differentiating between benign and malignant thyroid nodules.
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Affiliation(s)
- Gesheng Song
- School of Medicine (G.S.), and Department of Epidemiology and Biostatistics, School of Public Health (F.X.), Shandong University, Jinan, China; and Health Management Center, Shandong Provincial Qianfoshan Hospital, Jinan, China (C.Z.)
| | - Fuzhong Xue
- School of Medicine (G.S.), and Department of Epidemiology and Biostatistics, School of Public Health (F.X.), Shandong University, Jinan, China; and Health Management Center, Shandong Provincial Qianfoshan Hospital, Jinan, China (C.Z.)
| | - Chengqi Zhang
- School of Medicine (G.S.), and Department of Epidemiology and Biostatistics, School of Public Health (F.X.), Shandong University, Jinan, China; and Health Management Center, Shandong Provincial Qianfoshan Hospital, Jinan, China (C.Z.).
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Jang MH, Jung KC, Min HS. The Diagnostic Usefulness of HMGA2, Survivin, CEACAM6, and SFN/14-3-3 δ in Follicular Thyroid Carcinoma. J Pathol Transl Med 2015; 49:112-7. [PMID: 25812733 PMCID: PMC4367106 DOI: 10.4132/jptm.2015.01.31] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 01/29/2015] [Accepted: 01/30/2015] [Indexed: 12/23/2022] Open
Abstract
Background: Follicular thyroid carcinoma (FTC) is the second most common thyroid malignancy and its differential diagnosis includes follicular adenoma (FA) and adenomatous goiter (AG). Several ancillary markers have been suggested to aid in the diagnosis of FTC, but the successful use of these methods still needs to be validated. Methods: In the present study, we verified the immunoexpression of HMGA2, CEACAM6, survivin, and SFN/14-3-3 δ in lesions including 41 AGs, 72 FAs, and 79 FTCs. We evaluated their diagnostic usefulness, combined with galectin 3, Hector Battifora mesothelial 1 (HBME1), cytokeratin 19, and cyclin D1, in diagnosing FTC. Results: The expressions of HBME1 (65.8%) and HMGA2 (55.7%) were significantly higher in FTCs than in FAs and AGs (p<.001 and p=.005, respectively). HBME1 was the only marker that was more frequently expressed in FTCs than in FAs (p=.021) and it was more frequently expressed in follicular neoplasms than in AGs (p<.001). Among the novel markers, the combination of HMGA2 and HBME1 showed the highest sensitivity (72.2%) and specificity (76.1%) for diagnosing FTC. CEACAM6, survivin, and SFN/14-3-3 δ were barely expressed in most cases. Conclusions: Our present results show that only HMGA2 can be beneficial in differentiating FTC using the novel markers.
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Affiliation(s)
- Min Hye Jang
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea ; Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Kyeong Cheon Jung
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Hye Sook Min
- Department of Epidemiology and Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
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Zheng B, Liu J, Gu J, Lu Y, Zhang W, Li M, Lu H. A three-gene panel that distinguishes benign from malignant thyroid nodules. Int J Cancer 2014; 136:1646-54. [PMID: 25175491 DOI: 10.1002/ijc.29172] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 06/27/2014] [Accepted: 07/03/2014] [Indexed: 12/26/2022]
Abstract
Reliable preoperative diagnosis of malignant thyroid tumors remains challenging because of the inconclusive cytological examination of fine-needle aspiration biopsies. Although numerous studies have successfully demonstrated the use of high-throughput molecular diagnostics in cancer prediction, the application of microarrays in routine clinical use remains limited. Our aim was, therefore, to identify a small subset of genes to develop a practical and inexpensive diagnostic tool for clinical use. We developed a two-step feature selection method composed of a linear models for microarray data (LIMMA) linear model and an iterative Bayesian model averaging model to identify a suitable gene set signature. Using one public dataset for training, we discovered a three-gene signature dipeptidyl-peptidase 4 (DPP4), secretogranin V (SCG5) and carbonic anhydrase XII (CA12). We then evaluated the robustness of our gene set using three other independent public datasets. The gene signature accuracy was 85.7, 78.8 and 85.7%, respectively. For experimental validation, we collected 70 thyroid samples from surgery and our three-gene signature method achieved an accuracy of 94.3% by quantitative polymerase chain reaction (QPCR) experiment. Furthermore, immunohistochemistry in 29 samples showed proteins expressed by these three genes are also differentially expressed in thyroid samples. Our protocol discovered a robust three-gene signature that can distinguish benign from malignant thyroid tumors, which will have daily clinical application.
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Affiliation(s)
- Bing Zheng
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China; Key Laboratory of Molecular Embryology, Ministry of Health and Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, China; Department of Laboratory Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
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Acharya UR, Swapna G, Sree SV, Molinari F, Gupta S, Bardales RH, Witkowska A, Suri JS. A Review on Ultrasound-Based Thyroid Cancer Tissue Characterization and Automated Classification. Technol Cancer Res Treat 2014; 13:289-301. [DOI: 10.7785/tcrt.2012.500381] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In this paper, we review the different studies that developed Computer Aided Diagnostic (CAD) for automated classification of thyroid cancer into benign and malignant types. Specifically, we discuss the different types of features that are used to study and analyze the differences between benign and malignant thyroid nodules. These features can be broadly categorized into (a) the sonographic features from the ultrasound images, and (b) the non-clinical features extracted from the ultrasound images using statistical and data mining techniques. We also present a brief description of the commonly used classifiers in ultrasound based CAD systems. We then review the studies that used features based on the ultrasound images for thyroid nodule classification and highlight the limitations of such studies. We also discuss and review the techniques used in studies that used the non-clinical features for thyroid nodule classification and report the classification accuracies obtained in these studies.
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Affiliation(s)
- U. Rajendra Acharya
- Department of Electronics and Communication Engineering, Ngee Ann Polytechnic, Singapore 599489
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - G. Swapna
- Department of Applied Electronics and Instrumentation, Government Engineering College, Kozhikode, Kerala 673005, India
| | | | - Filippo Molinari
- Biolab, Department of Electronics and Telecommunications, Politecnico di Torino, Torino, Italy
| | - Savita Gupta
- Department of Computer Science and Engineering, University Institute of Engineering and Technology (UIET), Panjab University, Chandigarh, India
| | | | - Agnieszka Witkowska
- Department of Internal Medicine, Diabetology and Nephrology, Medical University of Silesia, Zabrze, Poland
| | - Jasjit S. Suri
- ThyroScan Division, Global Biomedical Technologies, Inc., CA, USA; AtheroPoint(TM), LLC, Roseville, CA, USA; Electrical Engineering Department, Idaho State University (Affl.), ID, USA
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Depletion of the aryl hydrocarbon receptor in MDA-MB-231 human breast cancer cells altered the expression of genes in key regulatory pathways of cancer. PLoS One 2014; 9:e100103. [PMID: 24932473 PMCID: PMC4059751 DOI: 10.1371/journal.pone.0100103] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 05/22/2014] [Indexed: 11/19/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR), a transcription factor that is best known for its role in mediating the toxic responses elicited by poly aromatic hydrocarbons as well as many other environmental factors; is also involved in breast cancer progression. We previously reported that stable knockdown of AhR decreased the tumorigenic properties of the highly metastatic MDA-MB-231 breast cancer cell line; whereas ectopic overexpression of AhR was sufficient to transform immortalized human mammary epithelial cells to exhibit malignant phenotypes. In the present study we investigated the genes that are differentially regulated by AhR and are controlling cellular processes linked to breast cancer. We used Affymetrix Human GeneChip 1.0-ST whole transcriptome arrays to analyze alterations of gene expression resulting from stable AhR knockdown in the MDA-MB-231 breast cancer cell line. The expression of 144 genes was significantly altered with a ≥2.0-fold change and a multiple test corrected p-value ≤0.05, as a result of AhR knockdown. We demonstrate that AhR knockdown alters the expression of several genes known to be linked to cancer. These genes include those involved in tryptophan metabolism (KYNU), cell growth (MUC1 and IL8), cell survival (BIRC3 and BCL3), cell migration and invasion (S100A4 and ABI3), multi-drug resistance (ABCC3) and angiogenesis (VEGFA and CCL2). The identification of the genes and pathways affected by AhR depletion provides new insight into possible molecular events that could explain the reported phenotypic changes. In conclusion AhR knockdown alters the expression of genes known to enhance or inhibit cancer progression; tipping the balance towards a state that counteracts tumor progression.
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Hodgkinson CP, Naidoo V, Patti KG, Gomez JA, Schmeckpeper J, Zhang Z, Davis B, Pratt RE, Mirotsou M, Dzau VJ. Abi3bp is a multifunctional autocrine/paracrine factor that regulates mesenchymal stem cell biology. Stem Cells 2014; 31:1669-82. [PMID: 23666637 DOI: 10.1002/stem.1416] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 04/09/2013] [Indexed: 12/27/2022]
Abstract
Mesenchymal stem cells (MSCs) transplanted into injured myocardium promote repair through paracrine mechanisms. We have previously shown that MSCs over-expressing AKT1 (Akt-MSCs) exhibit enhanced properties for cardiac repair. In this study, we investigated the relevance of Abi3bp toward MSC biology. Abi3bp formed extracellular deposits with expression controlled by Akt1 and ubiquitin-mediated degradation. Abi3bp knockdown/knockout stabilized focal adhesions and promoted stress-fiber formation. Furthermore, MSCs from Abi3bp knockout mice displayed severe deficiencies in osteogenic and adipogenic differentiation. Knockout or stable knockdown of Abi3bp increased MSC and Akt-MSC proliferation, promoting S-phase entry via cyclin-d1, ERK1/2, and Src. Upon Abi3bp binding to integrin-β1 Src associated with paxillin which inhibited proliferation. In vivo, Abi3bp knockout increased MSC number and proliferation in bone marrow, lung, and liver. In summary, we have identified a novel extracellular matrix protein necessary for the switch from proliferation to differentiation in MSCs.
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Affiliation(s)
- Conrad P Hodgkinson
- Mandel Center for Hypertension Research and Division of Cardiovascular Medicine, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
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Carbonic anhydrase 4 and crystallin α-B immunoreactivity may distinguish benign from malignant thyroid nodules in patients with indeterminate thyroid cytology. J Surg Res 2014; 190:565-74. [PMID: 24880201 DOI: 10.1016/j.jss.2014.03.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 03/07/2014] [Accepted: 03/14/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND Thyroid nodules are present in 19%-67% of the population and carry a 5%-10% risk of malignancy. Unfortunately, fine-needle aspiration biopsies are indeterminate in 20%-30% of patients, often necessitating thyroid surgery for diagnosis. Numerous DNA microarray studies including a recently commercialized molecular classifier have helped to better distinguish benign from malignant thyroid nodules. Unfortunately, these assays often require probes for >100 genes, are expensive, and only available at a few laboratories. We sought to validate these DNA microarray assays at the protein level and determine whether simple and widely available immunohistochemical biomarkers alone could distinguish benign from malignant thyroid nodules. METHODS A tissue microarray (TMA) composed of 26 follicular thyroid carcinomas (FTCs) and 53 follicular adenomas (FAs) from patients with indeterminate thyroid nodules was stained with 17 immunohistochemical biomarkers selected based on prior DNA microarray studies. Antibodies used included galectin 3, growth and differentiation factor 15, protein convertase 2, cluster of differentiation 44 (CD44), glutamic oxaloacetic transaminase 1 (GOT1), trefoil factor 3 (TFF3), Friedreich Ataxia gene (X123), fibroblast growth factor 13 (FGF13), carbonic anhydrase 4 (CA4), crystallin alpha-B (CRYAB), peptidylprolyl isomerase F (PPIF), asparagine synthase (ASNS), sodium channel, non-voltage gated, 1 alpha subunit (SCNN1A), frizzled homolog 1 (FZD1), tyrosine related protein 1 (TYRP1), E cadherin, type 1 (ECAD), and thyroid hormone receptor associated protein 220 (TRAP220). Of note, two of these biomarkers (GOT1 and CD44) are now used in the Afirma classifier assay. We chose to compare specifically FTC versus FA rather than include all histologic categories to create a more uniform immunohistochemical comparison. In addition, we have found that most papillary thyroid carcinoma could often be reasonably distinguished from benign disease by morphological cytology findings alone. RESULTS Increased immunoreactivity of CRYAB was associated with thyroid malignancy (c-statistic, 0.644; negative predictive value [NPV], 0.90) and loss of immunoreactivity of CA4 was also associated with malignancy (c-statistic, 0.715; NPV, 0.90) in indeterminate thyroid specimens. The combination of CA4 and CRYAB for discriminating FTC from FA resulted in a better c-statistic of 0.75, sensitivity of 0.76, specificity of 0.59, positive predictive value (PPV) of 0.32, and NPV of 0.91. When comparing widely angioinvasive FTC from FA, the resultant c-statistic improved to 0.84, sensitivity of 0.75, specificity of 0.76, PPV of 0.11, and NPV of 0.99. CONCLUSIONS Loss of CA4 and increase in CRYAB immunoreactivity distinguish FTC from FA in indeterminate thyroid nodules on a thyroid TMA with an NPV of 91%. Further studies in preoperative patient fine needle aspiration (FNAs) are needed to validate these results.
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Abstract
According to the literature, thyroid nodules (TNs) are quite rare in the first two decades of life and are predominantly non-cancerous, although cancerous TNs are more common in the first two decades of life than in adults. Therefore, it is important for clinicians to distinguish benign from malignant lesions preoperatively because the latter require a total thyroidectomy with or without neck lymph node dissection. A careful work-up and a fine-needle aspiration biopsy (FNAB) are mandatory to improve the preoperative diagnosis. High-resolution thyroid ultrasound and real-time elastosonography are adjuvant presurgical tools in selecting patients for surgery, particularly those with indeterminate or non-diagnostic cytology. Elevated thyroid-stimulating hormone (TSH) level in a patient with a thyroid nodule is a new laboratory predictor of thyroid cancer risk. The majority of thyroid carcinomas derive from the follicular cell, whereas medullary thyroid carcinoma (MTC) derives from calcitonin-producing cells. Patients with MTC are screened for germ-line RET mutations to detect carriers and identify family members for prophylactic or therapeutic thyroidectomy.
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Affiliation(s)
- Marek Niedziela
- Department of Paediatric Endocrinology and Rheumatology, 2nd Chair of Paediatrics, Poznan University of Medical Sciences, 27/33 Szpitalna Street, 60-572 Poznan, Poland.
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Nagar S, Ahmed S, Peeples C, Urban N, Boura J, Thibodeau B, Akervall J, Wilson G, Long G, Czako P. Evaluation of genetic biomarkers for distinguishing benign from malignant thyroid neoplasms. Am J Surg 2013; 207:596-601. [PMID: 24713092 DOI: 10.1016/j.amjsurg.2013.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 06/10/2013] [Accepted: 06/14/2013] [Indexed: 01/21/2023]
Abstract
BACKGROUND Fine-needle aspiration (FNA) aids in the diagnosis of thyroid nodules. The expression of previously implicated genes was examined to potentially discriminate between benign and malignant thyroid samples. METHODS Patients included for study had cytology demonstrating follicular cells of undetermined significance, atypical cells of undetermined significance, follicular neoplasm, or suspicion of malignancy with one of the following postoperative diagnoses: follicular thyroid adenomas, follicular thyroid carcinomas, or follicular variant of papillary thyroid carcinomas (FV-PTCs). FNA and tumor expression of human telomerase reverse transcriptase (hTERT), high-mobility group A2 (HMGA2), and trefoil factor 3/3-galactoside-binding lectin (T/G ratio) were analyzed. RESULTS T/G ratios were not significantly different in the malignant and benign groups. HMGA2 was overexpressed in carcinoma states; however, only FV-PTCs were significant (P = .006). Tumor hTERT expression was detected in 25% of follicular thyroid carcinomas, whereas 5% of FV-PTCs and 10% of follicular thyroid adenomas had expression. FNA aspirates showed similar results. CONCLUSIONS Although HMGA2 and hTERT showed differential expression, they did not consistently differentiate benign from malignant. Further study based on global gene expression is needed to identify markers that could serve as a diagnostic tool.
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Affiliation(s)
- Sapna Nagar
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA.
| | - Samreen Ahmed
- Beaumont BioBank, Beaumont Health System, Royal Oak, MI, USA
| | - Claire Peeples
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA
| | - Nichole Urban
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA
| | - Judy Boura
- Department of Biostatistics, Beaumont Health System, Royal Oak, MI, USA
| | - Bryan Thibodeau
- Beaumont BioBank, Beaumont Health System, Royal Oak, MI, USA
| | - Jan Akervall
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA; Beaumont BioBank, Beaumont Health System, Royal Oak, MI, USA
| | - George Wilson
- Beaumont BioBank, Beaumont Health System, Royal Oak, MI, USA; Department of Radiation Oncology, Beaumont Health System, Royal Oak, MI, USA
| | - Graham Long
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA
| | - Peter Czako
- Department of Surgery Beaumont Health System, 3811 West 13 Mile Road, 104-RI, Royal Oak, MI 48073, USA
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Moon JY, Lee EJ, Chung WY, Moon MH, Chung BC, Choi MH. Comparison of metabolic ratios of urinary estrogens between benign and malignant thyroid tumors in postmenopausal women. BMC Clin Pathol 2013; 13:25. [PMID: 24156385 PMCID: PMC4016477 DOI: 10.1186/1472-6890-13-25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 10/21/2013] [Indexed: 11/21/2022] Open
Abstract
Background Estrogen metabolism may be associated with the pathophysiological development of papillary thyroid carcinoma (PTC). Methods To evaluate the differential estrogen metabolism between benign and malignant PTCs, estrogen profiling by gas chromatography–mass spectrometry was applied to urine samples from postmenopausal patients with 9 benign tumors and 18 malignant stage I and III/IV PTCs. Results The urinary concentration of 2-methoxyestradiol was significantly lower in the stage I malignant patients (3.5-fold; P < 0.025) than in the benign group. The metabolic ratios of 16α-OH-estrone/estrone and estriol/estradiol, which are responsible for 16α-hydroxylase activity, were increased more than 2.5-fold in the advanced-stage malignant PTC (P < 0.02 each). The more than 6.2-fold decrease in the urinary 2-/16α-hydroxylase ratio in stage III/IV malignant PTC was consistent with the ratio in postmenopausal patients with endocrine gland cancers. In addition, reductive 17β-hydroxysteroid dehydrogenase (17β-HSD; estradiol/estrone or estriol/16α-OH-estrone) was present at significantly higher levels in subjects with stage III/IV malignant PTCs than in benign subjects (>3.5-fold difference; P < 0.002). In particular, the estriol/16α-OH-estrone ratio differentiated between the benign and early-stage malignant patients (P < 0.01). Conclusions Increased 16α-hydroxylation and/or a decreased 2-/16α-ratio, as well increased reductive 17β-HSD, with regard to estrogen metabolism could provide potential biomarkers. The devised profiles could be useful for differentiating malignant thyroid carcinomas from benign adenomas in postmenopausal women.
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Affiliation(s)
| | | | | | | | | | - Man Ho Choi
- Future Convergence Research Division, Korea Institute of Science and Technology, 39-1 Hawolkok-dong, Seoul 136-791, Korea.
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Binder ZA, Siu IM, Eberhart CG, ap Rhys C, Bai RY, Staedtke V, Zhang H, Smoll NR, Piantadosi S, Piccirillo SG, DiMeco F, Weingart JD, Vescovi A, Olivi A, Riggins GJ, Gallia GL. Podocalyxin-like protein is expressed in glioblastoma multiforme stem-like cells and is associated with poor outcome. PLoS One 2013; 8:e75945. [PMID: 24146797 PMCID: PMC3797817 DOI: 10.1371/journal.pone.0075945] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 08/23/2013] [Indexed: 11/19/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common primary malignant adult brain tumor and is associated with poor survival. Recently, stem-like cell populations have been identified in numerous malignancies including GBM. To identify genes whose expression is changed with differentiation, we compared transcript profiles from a GBM oncosphere line before and after differentiation. Bioinformatic analysis of the gene expression profiles identified podocalyxin-like protein (PODXL), a protein highly expressed in human embryonic stem cells, as a potential marker of undifferentiated GBM stem-like cells. The loss of PODXL expression upon differentiation of GBM stem-like cell lines was confirmed by quantitative real-time PCR and flow cytometry. Analytical flow cytometry of numerous GBM oncosphere lines demonstrated PODXL expression in all lines examined. Knockdown studies and flow cytometric cell sorting experiments demonstrated that PODXL is involved in GBM stem-like cell proliferation and oncosphere formation. Compared to PODXL-negative cells, PODXL-positive cells had increased expression of the progenitor/stem cell markers Musashi1, SOX2, and BMI1. Finally, PODXL expression directly correlated with increasing glioma grade and was a marker for poor outcome in patients with GBM. In summary, we have demonstrated that PODXL is expressed in GBM stem-like cells and is involved in cell proliferation and oncosphere formation. Moreover, high PODXL expression correlates with increasing glioma grade and decreased overall survival in patients with GBM.
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Affiliation(s)
- Zev A. Binder
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Johns Hopkins Physical Science Oncology Center and Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - I-Mei Siu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Charles G. Eberhart
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Colette ap Rhys
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Ren-Yuan Bai
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Verena Staedtke
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Hao Zhang
- Department of Molecular Microbiology and Immunology, Johns Hopkins University School of Public Health, Baltimore, Maryland, United States of America
| | - Nicolas R. Smoll
- Gippsland Medical School, Monash University, Churchill, Victoria, Australia
| | - Steven Piantadosi
- Department of Oncology Biostatistics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | | | - Francesco DiMeco
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Neurosurgery, Istituto Nazionale Neurologico C. Besta, Milan, Italy
| | - Jon D. Weingart
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Angelo Vescovi
- Department of Biotechnology and Biosciences, University of Milano Biocca, Milan, Italy
| | - Alessandro Olivi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Gregory J. Riggins
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Gary L. Gallia
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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Pfeifer A, Wojtas B, Oczko-Wojciechowska M, Kukulska A, Czarniecka A, Eszlinger M, Musholt T, Stokowy T, Swierniak M, Stobiecka E, Rusinek D, Tyszkiewicz T, Kowal M, Jarzab M, Hauptmann S, Lange D, Paschke R, Jarzab B. Molecular differential diagnosis of follicular thyroid carcinoma and adenoma based on gene expression profiling by using formalin-fixed paraffin-embedded tissues. BMC Med Genomics 2013; 6:38. [PMID: 24099521 PMCID: PMC3852913 DOI: 10.1186/1755-8794-6-38] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 09/30/2013] [Indexed: 01/14/2023] Open
Abstract
Background Differential diagnosis between malignant follicular thyroid cancer (FTC) and benign follicular thyroid adenoma (FTA) is a great challenge for even an experienced pathologist and requires special effort. Molecular markers may potentially support a differential diagnosis between FTC and FTA in postoperative specimens. The purpose of this study was to derive molecular support for differential post-operative diagnosis, in the form of a simple multigene mRNA-based classifier that would differentiate between FTC and FTA tissue samples. Methods A molecular classifier was created based on a combined analysis of two microarray datasets (using 66 thyroid samples). The performance of the classifier was assessed using an independent dataset comprising 71 formalin-fixed paraffin-embedded (FFPE) samples (31 FTC and 40 FTA), which were analysed by quantitative real-time PCR (qPCR). In addition, three other microarray datasets (62 samples) were used to confirm the utility of the classifier. Results Five of 8 genes selected from training datasets (ELMO1, EMCN, ITIH5, KCNAB1, SLCO2A1) were amplified by qPCR in FFPE material from an independent sample set. Three other genes did not amplify in FFPE material, probably due to low abundance. All 5 analysed genes were downregulated in FTC compared to FTA. The sensitivity and specificity of the 5-gene classifier tested on the FFPE dataset were 71% and 72%, respectively. Conclusions The proposed approach could support histopathological examination: 5-gene classifier may aid in molecular discrimination between FTC and FTA in FFPE material.
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Affiliation(s)
- Aleksandra Pfeifer
- Department of Nuclear Medicine and Endocrine Oncology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej 15, Gliwice 44-101, Poland.
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Gazzah AC, Camoin L, Abid S, Bouaziz C, Ladjimi M, Bacha H. Identification of proteins related to early changes observed in Human hepatocellular carcinoma cells after treatment with the mycotoxin Zearalenone. ACTA ACUST UNITED AC 2013; 65:809-16. [DOI: 10.1016/j.etp.2012.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 11/07/2012] [Accepted: 11/22/2012] [Indexed: 01/24/2023]
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Sponziello M, Lavarone E, Pegolo E, Di Loreto C, Puppin C, Russo MA, Bruno R, Filetti S, Durante C, Russo D, Di Cristofano A, Damante G. Molecular differences between human thyroid follicular adenoma and carcinoma revealed by analysis of a murine model of thyroid cancer. Endocrinology 2013; 154:3043-53. [PMID: 23751876 PMCID: PMC3749486 DOI: 10.1210/en.2013-1028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Mouse models can provide useful information to understand molecular mechanisms of human tumorigenesis. In this study, the conditional thyroid mutagenesis of Pten and Ras genes in the mouse, which induces very aggressive follicular carcinomas (FTCs), has been used to identify genes differentially expressed among human normal thyroid tissue (NT), follicular adenoma (FA), and FTC. Global gene expression of mouse FTC was compared with that of mouse normal thyroids: 911 genes were found deregulated ± 2-fold in FTC samples. Then the expression of 45 deregulated genes in mouse tumors was investigated by quantitative RT-PCR in a first cohort of human NT, FA, and FTC (discovery group). Five genes were found significantly down-regulated in FA and FTC compared with NT. However, 17 genes were found differentially expressed between FA and FTC: 5 and 12 genes were overexpressed and underexpressed in FTC vs FA, respectively. Finally, 7 gene products, selected from results obtained in the discovery group, were investigated in a second cohort of human tumors (validation group) by immunohistochemistry. Four proteins showed significant differences between FA and FTC (peroxisomal proliferator-activated receptor-γ, serum deprivation response protein, osteoglycin, and dipeptidase 1). Altogether our data indicate that the establishment of an enriched panel of molecular biomarkers using data coming from mouse thyroid tumors and validated in human specimens may help to set up a more valid platform to further improve diagnosis and prognosis of thyroid malignancies.
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Affiliation(s)
- Marialuisa Sponziello
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma “Sapienza,” 00161 Roma, Italy
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Acharya UR, Sree SV, Swapna G, Gupta S, Molinari F, Garberoglio R, Witkowska A, Suri JS. Effect of complex wavelet transform filter on thyroid tumor classification in three-dimensional ultrasound. Proc Inst Mech Eng H 2013; 227:284-92. [PMID: 23662344 DOI: 10.1177/0954411912472422] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ultrasonography has great potential in differentiating malignant thyroid nodules from the benign ones. However, visual interpretation is limited by interobserver variability, and further, the speckle distribution poses a challenge during the classification process. This article thus presents an automated system for tumor classification in three-dimensional contrast-enhanced ultrasonography data sets. The system first processes the contrast-enhanced ultrasonography images using complex wavelet transform-based filter to mitigate the effect of speckle noise. The higher order spectra features are then extracted and used as input for training and testing a fuzzy classifier. In the off-line training system, higher order spectra features are extracted from a set of images known as the training images. These higher order spectra features along with the clinically assigned ground truth are used to train the classifier and obtain an estimate of the classifier or training parameters. The ground truth tells the class label of the image (i.e. whether the image belongs to a benign or malignant nodule). During the online testing phase, the estimated classifier parameters are applied on the higher order spectra features that are extracted from the testing images to predict their class labels. The predicted class labels are compared with their corresponding original ground truth to evaluate the performance of the classifier. Without utilizing the complex wavelet transform filter, the fuzzy classifier demonstrated an accuracy of 91.6%, while utilizing the complex wavelet transform filter, the accuracy significantly boosted to 99.1%.
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Affiliation(s)
- U Rajendra Acharya
- Department of Electronics and Computer Engineering, Ngee Ann Polytechnic, 535 Clementi Road, Singapore.
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DDIT3, STT3A (ITM1), ARG2 and FAM129A (Niban, C1orf24) in diagnosing thyroid carcinoma: variables that may affect the performance of this antibody-based test and promise. Mod Pathol 2013; 26:611-3. [PMID: 23542525 DOI: 10.1038/modpathol.2012.212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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