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Silaghi H, Pop LA, Georgescu CE, Muntean D, Crișan D, Silaghi P, Lungu I, Nasui BA, Dulf EH, Braicu C, Berindan-Neagoe I, Silaghi CA. MicroRNA Expression Profiling-Potential Molecular Discrimination of Papillary Thyroid Carcinoma Subtypes. Biomedicines 2024; 12:136. [PMID: 38255241 PMCID: PMC10813560 DOI: 10.3390/biomedicines12010136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/28/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Recent research has revealed the importance of miRNAs in the diagnosis and clinical evolution of papillary thyroid cancer (PTC). We aim to identify a specific miRNA profile that could differentiate between specific subtypes of PTC. METHODS In this cross-sectional study, total RNA was extracted from paraffin-embedded tissues of 43 patients, 17 with an infiltrative follicular variant of PTC (iFVPTC) and 26 with a conventional variant of PTC (cPTC). Nine miRNAs were evaluated using qRT-PCR technology and specific miRNA assays. RESULTS We found specific patterns for cPTC and iFVPTC, such as miRNA altered in both types of tumours (miR-146b-5p, miR-181a-5p, miR-221-3p, miR-21-5p and miR-222-3p) and two miRNAs significantly expressed only in cPTC (miR-20b-5p, miR-21-5p). The iFVPTC group presented strong and moderate correlations between miRNA expression and clinical data. miR-221-3p, miR-195-5p, miR-181-5p, miR-146b-5p and miR-222 were correlated with age, tumour size (TS) or lymph node metastases (N), while only miR-20b-5p, miR-195-5p and miR-181-5p were correlated with TS, N and age in the cPTC group. CONCLUSIONS The present study allowed the identification of a signature of two miRNAs to confirm miRNA differences between the two histological subtypes of TC. Our results provide advances in the molecular diagnosis of TC and could help to improve the diagnostic performance of already existing molecular classifiers.
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Affiliation(s)
- Horatiu Silaghi
- Department of Surgery V, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania;
| | - Laura Ancuța Pop
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 400337 Cluj-Napoca, Romania; (C.B.); (I.B.-N.)
| | - Carmen Emanuela Georgescu
- Department of Endocrinology, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (C.E.G.); (C.A.S.)
| | - Diana Muntean
- Department of Pathology, Clinic Municipal Hospital Cluj-Napoca, Tăbăcarilor Street 11, 400139 Cluj-Napoca, Romania;
| | - Doinița Crișan
- Department of Pathology, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 6 Louis Pasteur Street, 400349 Cluj-Napoca, Romania;
| | - Patricia Silaghi
- Faculty of Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 6 Louis Pasteur Street, 400349 Cluj-Napoca, Romania;
| | - Ionela Lungu
- Cardiomed Medical Center, 17 Republicii Street, 400015 Cluj-Napoca, Romania;
| | - Bogdana Adriana Nasui
- Department of Community Health, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 6 Louis Pasteur Street, 400349 Cluj-Napoca, Romania;
| | - Eva-H. Dulf
- Department of Automation, Faculty of Automation and Computer Science, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400014 Cluj-Napoca, Romania;
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 400337 Cluj-Napoca, Romania; (C.B.); (I.B.-N.)
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 400337 Cluj-Napoca, Romania; (C.B.); (I.B.-N.)
| | - Cristina Alina Silaghi
- Department of Endocrinology, “Iuliu Hatieganu” University of Medicine and Pharmacy Cluj-Napoca, 8 Victor Babes Street, 400012 Cluj-Napoca, Romania; (C.E.G.); (C.A.S.)
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2
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Dong Y, Tan H, Wang L, Liu Z. Progranulin promoted the proliferation, metastasis, and suppressed apoptosis via JAK2-STAT3/4 signaling pathway in papillary thyroid carcinoma. Cancer Cell Int 2023; 23:191. [PMID: 37660003 PMCID: PMC10475200 DOI: 10.1186/s12935-023-03033-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/18/2023] [Indexed: 09/04/2023] Open
Abstract
BACKGROUND Progranulin (PGRN), a glycoprotein secreted by a wide range of epithelial cells and plays an important role in inflammatory mechanisms and tumor progression. In this study, the expression, and functions of PGRN in papillary thyroid carcinoma (PTC) was examined to explore the potential pathogenesis of PTC. METHODS Western blotting and qRT-PCR were used to detect the relationship between PGRN expression and clinicopathological characteristics of patients with PTC. PTC cell lines with PGRN overexpression and with PGRN knockdown were established to explore their effects on the biological behavior. Western blotting was used to detect the changes of relevant molecules and JAK2-STAT3/4 signaling pathway. Moreover, rescue experiments validated the involvement of the JAK2-STAT3/4 signaling pathway. And statistical analyses were analyzed using SPASS 21.0 and graph generation were performed using GraphPad Prism 8.0. RESULTS PGRN was overexpressed in PTC tissue and increased by 75% at mRNA level and 161% at relative protein level in the patients with lymph node metastasis compared to without lymph node metastasis. Besides, PGRN regulated and promoted PTC cell proliferation, migration, invasion, and inhibited cell apoptosis. With PGRN overexpressed, relevant molecules including the expression of BCL2/BAX, BCL2/BAD, CyclinD1, MMP2, vimentin and N-cadherin were increased, the expression level of E-cadherin was decreased, and the phosphorylation of JAK2 and STAT3/4 were increased. JAK inhibitor (JSI-124) rescued these changes of PTC cells induced by overexpressed PGRN. CONCLUSIONS These findings revealed that PGRN promote the progression of PTC through the JAK2-STAT3/4 pathway, and PGRN could be served as a potential therapeutic target for PTC.
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Affiliation(s)
- Yanxu Dong
- Department of General Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, China
| | - Hao Tan
- Department of General Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, China
| | - Lidong Wang
- Department of General Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, China
| | - Zhen Liu
- Department of General Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004, China.
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3
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Słowińska-Klencka D, Popowicz B, Kulczycka-Wojdala D, Szymańska B, Duda-Szymańska J, Wojtaszek-Nowicka M, Kaczka K, Klencki M. Effective Use of microRNA, BRAF and Sonographic Risk Assessment in Bethesda III Thyroid Nodules Requires a Different Approach to Nodules with Features of Nuclear Atypia and Other Types of Atypia. Cancers (Basel) 2023; 15:4287. [PMID: 37686562 PMCID: PMC10486535 DOI: 10.3390/cancers15174287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
The aim of the study was to analyze the diagnostic usefulness of the combined assessment of the ultrasound risk category of the nodule (evaluated with EU-TIRADS system), the presence of BRAF V600E mutation and the expression of selected microRNAs (miR-146b, miR-221 and miR-222) in Bethesda category III thyroid nodules, separately for cases with nuclear atypia (AUS-nuclear) and cases with other types of atypia (AUS-other). We evaluated 161 nodules (66 AUS-nuclear and 95 AUS-other) with known results of postoperative histopathological examination. The rate of cancer and the rate of PTC among cancers were nearly three times higher in the AUS-nuclear than the AUS-other group. For AUS-nuclear nodules, the most effective diagnostic panel included, in addition to repeat FNA, the assessment of BRAF V600E mutation and the expression of miR-146b and miR-222 (sensitivity: 93.5%, specificity: 80.0%). For AUS-other nodules, a two-step procedure was most effective: at the first stage, forgoing surgical treatment in subjects with a benign repeat FNA outcome, and, at the second stage, the assessment of miR-222 expression and the EU-TIRADS category (sensitivity: 92.3%, specificity: 76.8%). The optimal use of molecular methods in the diagnostics of category III thyroid nodules requires a separate approach for nodules with nuclear atypia and nodules with other types of atypia.
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Affiliation(s)
- Dorota Słowińska-Klencka
- Department of Morphometry of Endocrine Glands, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland; (D.S.-K.); (B.P.)
| | - Bożena Popowicz
- Department of Morphometry of Endocrine Glands, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland; (D.S.-K.); (B.P.)
| | - Dominika Kulczycka-Wojdala
- Research Laboratory CoreLab, Medical University of Lodz, Mazowiecka 6/8 St., 92-215 Lodz, Poland; (D.K.-W.); (B.S.)
| | - Bożena Szymańska
- Research Laboratory CoreLab, Medical University of Lodz, Mazowiecka 6/8 St., 92-215 Lodz, Poland; (D.K.-W.); (B.S.)
| | - Joanna Duda-Szymańska
- Department of Pathomorphology, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland;
| | - Martyna Wojtaszek-Nowicka
- Department of Clinical Endocrinology, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland;
| | - Krzysztof Kaczka
- Department of General and Oncological Surgery, Surgical Clinical Sciences, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland;
| | - Mariusz Klencki
- Department of Morphometry of Endocrine Glands, Medical University of Lodz, Pomorska 251 St., 92-213 Lodz, Poland; (D.S.-K.); (B.P.)
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Gu Y, Zhang X, Li Y, Shi J, Cui H, Ren Y, Liu S, Qiao Y, Cheng Y, Liu Y. MiR-204-5p-targeted AP1S2 is necessary for papillary thyroid carcinoma. Mol Cell Endocrinol 2023; 574:111993. [PMID: 37328093 DOI: 10.1016/j.mce.2023.111993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/18/2023]
Abstract
MiR-204-5p, as a tumour suppressor, has been found in several cancers. However, whether miR-204-5p is involved in papillary thyroid carcinoma (PTC) has not yet been investigated. In this study, we identified miR-204-5p as a down-regulated miRNA in PTC tissues, unveiling that the levels of miR-204-5p in serum of patients with PTC were linked to PTC risk, and that the expression in patients concomitant with both PTC and benign lesions was much lower than that in patients only with PTC. Furthermore, we documented that miR-204-5p inhibited proliferation, migration, invasion, and cell cycle progression and triggered apoptosis of PTC cells via cell biology experiments. Finally, we identified that AP1S2 was a target of miR-204-5p using RNA-seq, iTRAQ, and bioinformatics prediction. Overall, miR-204-5p functions as a suppressor for PTC pathogenesis via the miR-204-5p/AP1S2 axis.
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Affiliation(s)
- Yulu Gu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China; National Health Commission Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Xin Zhang
- State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, 999078, PR China
| | - Yong Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Jikang Shi
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Heran Cui
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Yaxuan Ren
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Sainan Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Yichun Qiao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China
| | - Yi Cheng
- Department of Cardiovascular Center, First Hospital of Jilin University, Changchun, 130021, PR China.
| | - Yawen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, PR China.
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5
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Diagnostic Significance of FNAB miRNA Expression in Papillary Thyroid Carcinoma. Diagnostics (Basel) 2022; 12:diagnostics12061384. [PMID: 35741194 PMCID: PMC9221779 DOI: 10.3390/diagnostics12061384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 12/01/2022] Open
Abstract
The aim of the study was to evaluate the diagnostic utility of specific miRNAs in the preoperative assessment of thyroid nodules. One hundred and sixty thyroid fine needle aspiration biopsy (FNAB) samples with suspected thyroid carcinoma were collected. To detect the levels of miRNA expression in FNAB, next generation small RNA sequencing was performed in 60 samples. Based on the results obtained, three miRNAs (miR125A, miR200B, miR4324) were selected for further analysis. Based on the most frequently reported miRNAs in the literature associated with thyroid papillary carcinoma (PTC), two more miRNA (miR146B, miR221) were selected for further validation, using real-time reverse transcriptase polymerase chain reaction (RT-PCR) in 36 benign and 64 PTC samples. Expression of miR125A, miR146B, miR221, and miR4324 was significantly higher in patients with PTC compared with benign thyroid nodules (p ˂ 0.05). miR125A and miR4324 were also significantly more highly expressed in patients with extrathyroidal tumor extension compared to those without extrathyroidal PTC extension (p < 0.001). We also found a significantly higher expression of miR221 (p = 0.043) in patients with multifocal carcinomas compared to patients with single foci carcinomas. This prospective study showed that the expression analysis of four miRNAs (miR125A, miR146B, miR221, and miR4324) improve accuracy of FNAB, which could allow a better pre-operative diagnostic and prognostic assessment of thyroid malignancies.
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Zhu J, Li X, Zhang S, Liu J, Yao X, Zhao Q, Kou B, Han P, Wang X, Bai Y, Zheng Z, Xu C. Taraxasterol inhibits TGF-β1-induced epithelial-to-mesenchymal transition in papillary thyroid cancer cells through regulating the Wnt/β-catenin signaling. Hum Exp Toxicol 2021; 40:S87-S95. [PMID: 34219514 DOI: 10.1177/09603271211023792] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Taraxasterol (TAR) is a kind of active compound extracted from dandelion and its molecular structure resembles steroid hormones. Recently, TAR has been reported to show an anti-tumor activity. However, the specific role of TAR in papillary thyroid cancer (PTC) has not been clarified. In this study, we investigated the effect of TAR on PTC cell migration, invasion and epithelial-to-mesenchymal transition (EMT) induced by TGF-β1. PTC cells were exposed to TGF-β1 (5 ng/mL) and then treated with different concentrations of TAR. We found that TAR showed no obvious cytotoxicity below 10 μg/mL but notably reduced migration and invasion of TGF-β1-treated PTC cells. Moreover, TAR treatment decreased MMP-2 and MMP-9 levels, and obviously affected the expression of EMT markers. We also observed that Wnt3a and β-catenin levels were significantly increased in TGF-β1-treated PTC cells while TAR inhibited these effects in a concentration-dependent manner. Additionally, activation of the Wnt pathway by LiCl attenuated the suppressive effect of TAR on TGF-β1-induced migration, invasion and EMT in PTC cells. Taken together, we highlighted that TAR could significantly suppress TGF-β1-regulated migration and invasion by reversing the EMT process via the Wnt/β-catenin pathway, suggesting that TAR may be a potential anti-cancer agent for PTC treatment.
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Affiliation(s)
- J Zhu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of General Surgery, Shaanxi Tumor Hospital, Xi'an, China
| | - X Li
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - S Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Liu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Yao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q Zhao
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Kou
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Han
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Y Bai
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Z Zheng
- The Third Ward of Department of General Surgery, Rizhao People's Hospital, Rizhao, China
| | - C Xu
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Pamedytyte D, Leipute E, Zilaitiene B, Sarauskas V, Dauksiene D, Dauksa A, Zvirbliene A. Different stability of miRNAs and endogenous control genes in archival specimens of papillary thyroid carcinoma. Mol Med 2020; 26:100. [PMID: 33153429 PMCID: PMC7643475 DOI: 10.1186/s10020-020-00218-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 09/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The most popular miRNA quantitation technique is RQ-PCR with relative gene expression method that requires an endogenous control (EC) gene for data normalization. However, there are insufficient data and selection criteria on the most suitable ECs for miRNA expression studies in many cancer types including papillary thyroid carcinoma (PTC). Therefore, in this study we evaluated the impact of chosen EC and archival formalin-fixed, paraffin-embedded (FFPE) PTC tissue age on estimated target miRNA expression. METHODS RQ-PCR was used to determine expression levels of five miRNAs (miR-146b, miR-222, miR-21, miR-221 and miR-181b) and three different endogenous controls (RNU48, let-7a, miR-16), which were used to normalize the data. In total, 400 FFPE PTC tissues were analyzed that have been stored from 1 to 15 years. RESULTS The stability of commonly used ECs RNU48 and let-7a significantly differs from the stability of target miRNA in archival FFPE PTC tissues. Moreover, these differences have a great impact on miRNA expression results when FFPE tissue samples have been stored for a different period of time. CONCLUSIONS It is important to select an ECs not only stable in the tissue of interest but also with similar stability to target miRNA, especially when working with samples of different age.
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Affiliation(s)
- Daina Pamedytyte
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio Av. 7, 10257, Vilnius, Lithuania.
| | - Enrika Leipute
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio Av. 7, 10257, Vilnius, Lithuania
| | - Birute Zilaitiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 2, 50161, Kaunas, Lithuania
| | - Valdas Sarauskas
- Department of Pathology, Lithuanian University of Health Sciences, Eiveniu Str. 2, 50161, Kaunas, Lithuania
| | - Dalia Dauksiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 2, 50161, Kaunas, Lithuania
| | - Albertas Dauksa
- Institute for Digestive Research, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 2, 50161, Kaunas, Lithuania
| | - Aurelija Zvirbliene
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio Av. 7, 10257, Vilnius, Lithuania
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Multifunctional Roles of miR-34a in Cancer: A Review with the Emphasis on Head and Neck Squamous Cell Carcinoma and Thyroid Cancer with Clinical Implications. Diagnostics (Basel) 2020; 10:diagnostics10080563. [PMID: 32764498 PMCID: PMC7459507 DOI: 10.3390/diagnostics10080563] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 12/18/2022] Open
Abstract
MiR-34a belongs to the class of small non-coding regulatory RNAs and functions as a tumor suppressor. Under physiological conditions, miR-34a has an inhibitory effect on all processes related to cell proliferation by targeting many proto-oncogenes and silencing them on the post-transcriptional level. However, deregulation of miR-34a was shown to play important roles in tumorigenesis and processes associated with cancer progression, such as tumor-associated epithelial-mesenchymal transition, invasion, and metastasis. Moreover, further understanding of miR-34a molecular mechanisms in cancer are indispensable for the development of effective diagnosis and treatments. In this review, we summarized the current knowledge on miR-34a functions in human disease with an emphasis on its regulation and dysregulation, its role in human cancer, specifically head and neck squamous carcinoma and thyroid cancer, and emerging role as a disease diagnostic and prognostic biomarker and the novel therapeutic target in oncology.
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9
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Differential MicroRNA-Signatures in Thyroid Cancer Subtypes. JOURNAL OF ONCOLOGY 2020; 2020:2052396. [PMID: 32565797 PMCID: PMC7290866 DOI: 10.1155/2020/2052396] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022]
Abstract
Thyroid cancer is one of the most common endocrine cancers, with an increasing trend in the last few decades. Although papillary thyroid cancer is the most frequent subtype compared with follicular or anaplastic thyroid cancer, it can dedifferentiate to a more aggressive phenotype, and the recurrence rate is high. The cells of follicular adenomas and follicular carcinomas appear identical in cytology, making the preoperative diagnosis difficult. On the other hand, anaplastic thyroid cancer poses a significant clinical challenge due to its aggressive nature with no effective therapeutic options. In the past several years, the roles of genetic alterations of thyroid tumors have been documented, with a remarkable correlation between genotype and phenotype, indicating that distinct molecular changes are associated with a multistep tumorigenic process. Besides mRNA expression profiles, small noncoding microRNA (miRNA) expression also showed critical functions for cell differentiation, proliferation, angiogenesis, and resistance to apoptosis and finally activating invasion and metastasis in cancer. Several high-throughput sequencing studies demonstrate that miRNA expression signatures contribute clinically relevant information including types of thyroid cancer, tumor grade, and prognosis. This review summarizes recent findings on miRNA signatures in thyroid cancer subtypes.
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Franco AT, Labourier E, Ablordeppey KK, Surrey LF, Mostoufi-Moab S, Isaza A, Adzick NS, Kazahaya K, Kumar G, Bauer AJ. miRNA expression can classify pediatric thyroid lesions and increases the diagnostic yield of mutation testing. Pediatr Blood Cancer 2020; 67:e28276. [PMID: 32196952 DOI: 10.1002/pbc.28276] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND Genetic alterations in multiple cell signaling pathways are involved in the molecular pathogenesis of thyroid cancer. Oncogene mutation testing and gene-expression profiling are routinely used for the preoperative risk management of adult thyroid nodules. In this study, we evaluated the potential value of miRNA biomarkers for the classification of pediatric thyroid lesions. PROCEDURE Double-blind case-control study with 113 resected pediatric lesions: 66 malignant and 47 benign. Quantitative and qualitative molecular data generated with a 10-miRNA expression panel (ThyraMIR) and a next-generation sequencing oncogene panel (ThyGeNEXT) were compared with clinicopathological parameters. RESULTS miRNAs were differentially expressed in benign versus malignant tumors with distinct expression patterns in different histopathology categories. The 10-miRNA classifier identified 39 (59%) malignant lesions with 100% specificity. A positive classifier score was associated with lymph node metastasis, extrathyroidal extension and intrathyroidal spread. Genetic alterations associated with increased risk for malignancy were detected in 35 (53%) malignant cases, 20 positive for point mutations in BRAF, HRAS, KRAS, NRAS, PIK3CA, or TERT and 15 positive for gene rearrangements involving ALK, NTRK3, PPARG, or RET. The 10-miRNA classifier correctly identified 11 mutation-negative malignant cases. The performance of the combined molecular test was 70% sensitivity and 96% specificity with an area under the curve of 0.924. CONCLUSIONS These data suggest that the regulatory miRNA pathways underlying thyroid tumorigenesis are similar in adults and children. miRNA expression can identify malignant lesions with high specificity, augment the diagnostic yield of mutation testing, and improve the molecular classification of pediatric thyroid nodules.
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Affiliation(s)
- Aime T Franco
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | | | - Lea F Surrey
- Division of Anatomic Pathology and Genomic Diagnostics, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Sogol Mostoufi-Moab
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Division of Oncology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Amber Isaza
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - N Scott Adzick
- Department of Surgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ken Kazahaya
- Department of Otorhinolaryngology: Head and Neck Surgery, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Otorhinolaryngology/Head and Neck Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Andrew J Bauer
- Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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Pamedytyte D, Simanaviciene V, Dauksiene D, Leipute E, Zvirbliene A, Sarauskas V, Dauksa A, Verkauskiene R, Zilaitiene B. Association of MicroRNA Expression and BRAF V600E Mutation with Recurrence of Thyroid Cancer. Biomolecules 2020; 10:E625. [PMID: 32316638 PMCID: PMC7226510 DOI: 10.3390/biom10040625] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 12/23/2022] Open
Abstract
Many miRNAs and cancer-related mutations have been proposed as promising molecular markers of papillary thyroid carcinoma (PTC). However, there are limited data on the correlation between miRNA expression, BRAFV600E mutation, and PTC recurrence. Therefore, to evaluate the potential of BRAFV600E mutation and five selected miRNAs (-146b, -222, -21, -221, -181b) in predicting PTC recurrence, these molecular markers were analyzed in 400 formalin-fixed, paraffin-embedded PTC tissue specimens. The expression levels of miRNAs were measured using qRT-PCR. It was demonstrated that expression levels of all analyzed miRNAs are significantly higher in recurrent PTC than in non-recurrent PTC (p < 0.05). Moreover, higher expression levels of miR-146b, miR-222, miR-21, and miR-221 were associated with other clinicopathologic features of PTC, such as tumor size and lymph node metastases at initial surgery (p < 0.05). No significant differences in the frequency of BRAFV600E mutation in recurrent PTC and non-recurrent PTC were determined. Our results suggest that miRNA expression profile differs in PTC that is prone to recurrence when compared to PTC that does not reoccur after the initial surgery while BRAFV600E mutation frequency does not reflect the PTC recurrence status. However, the prognostic value of the analyzed miRNAs is rather limited in individual cases as the pattern of miRNA expression is highly overlapping between recurrent and non-recurrent PTC.
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Affiliation(s)
- Daina Pamedytyte
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT- 10257, Sauletekio av. 7, Vilnius, Lithuania
| | - Vaida Simanaviciene
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT- 10257, Sauletekio av. 7, Vilnius, Lithuania
| | - Dalia Dauksiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Eiveniu str. 2, Kaunas, Lithuania
| | - Enrika Leipute
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT- 10257, Sauletekio av. 7, Vilnius, Lithuania
| | - Aurelija Zvirbliene
- Institute of Biotechnology, Life Sciences Center, Vilnius University, LT- 10257, Sauletekio av. 7, Vilnius, Lithuania
| | - Valdas Sarauskas
- Department of Pathology, Lithuanian University of Health Sciences, LT-50161 Eiveniu str. 2, Kaunas, Lithuania
| | - Albertas Dauksa
- Institute for Digestive Research, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Eiveniu str. 2, Kaunas, Lithuania
| | - Rasa Verkauskiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Eiveniu str. 2, Kaunas, Lithuania
| | - Birute Zilaitiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Eiveniu str. 2, Kaunas, Lithuania
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12
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Yang Y, Ding L, Li Y, Xuan C. Hsa_circ_0039411 promotes tumorigenesis and progression of papillary thyroid cancer by miR-1179/ABCA9 and miR-1205/MTA1 signaling pathways. J Cell Physiol 2020; 235:1321-1329. [PMID: 31270819 DOI: 10.1002/jcp.29048] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 12/15/2022]
Abstract
Papillary thyroid cancer (PTC) is a common malignancy in endocrine system worldwide. Increasing evidence has shown that dysregulation of circular RNAs (circRNAs) could contribute to PTC tumorigenesis. The aims of this project are to investigate the potential role and molecular mechanism of hsa_circ_0039411 in PTC. In the project, RT-qPCR was performed to measure the expression profile of hsa_circ_0039411 in PTC tissues and cells. Cell counting kit-8, clonogenic, flow cytometric, and transwell experiments were used to identify the biological role of hsa_circ_0039411 on PTC cell progression. Bioinformatics methods, along with the dual-luciferase reporter test, was used to identify the potential mechanism of hsa_circ_0039411. Hsa_circ_0039411 was identified as enhanced in PTC tissues/cells. Gain-of-function experiments indicated that hsa_circ_0039411 facilitated PTC cell growth, migration, and invasion and inhibited cell apoptosis. Knockdown of hsa_circ_0039411 caused the opposite effects mentioned above. The mechanism exploration showed that hsa_circ_0039411 functioned as a sponge for miR-1179 and miR-1205 to elevate ATP-binding cassette transporter A9 (ABCA9) and metastasis-associated 1 (MTA1) expression at the post-transcriptional level, respectively. Further investigation confirmed that the functions of hsa_circ_0039411 are dependent on its modulation of ABCA9 and MTA1 in PTC cells. This study uncovered a mechanism of hsa_circ_0039411 in PTC, which might act as a novel therapeutic target for PTC.
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Affiliation(s)
- Yimin Yang
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, China
| | - Lili Ding
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, China
| | - Yanhua Li
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, China
| | - Chengluan Xuan
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, China
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13
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Titov SE, Ivanov MK, Demenkov PS, Katanyan GA, Kozorezova ES, Malek AV, Veryaskina YA, Zhimulev IF. Combined quantitation of HMGA2 mRNA, microRNAs, and mitochondrial-DNA content enables the identification and typing of thyroid tumors in fine-needle aspiration smears. BMC Cancer 2019; 19:1010. [PMID: 31660895 PMCID: PMC6819494 DOI: 10.1186/s12885-019-6154-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 09/12/2019] [Indexed: 12/12/2022] Open
Abstract
Background Analysis of molecular markers in addition to cytological analysis of fine-needle aspiration (FNA) samples is a promising way to improve the preoperative diagnosis of thyroid nodules. Nonetheless, in clinical practice, applications of existing diagnostic solutions based on the detection of somatic mutations or analysis of gene expression are limited by their high cost and difficulties with clinical interpretation. The aim of our work was to develop an algorithm for the differential diagnosis of thyroid nodules on the basis of a small set of molecular markers analyzed by real-time PCR. Methods A total of 494 preoperative FNA samples of thyroid goiters and tumors from 232 patients with known histological reports were analyzed: goiter, 105 samples (50 patients); follicular adenoma, 101 (48); follicular carcinoma, 43 (28); Hürthle cell carcinoma, 25 (11); papillary carcinoma, 121 (56); follicular variant of papillary carcinoma, 80 (32); and medullary carcinoma, 19 (12). Total nucleic acids extracted from dried FNA smears were analyzed for five somatic point mutations and two translocations typical of thyroid tumors as well as for relative concentrations of HMGA2 mRNA and 13 microRNAs and the ratio of mitochondrial to nuclear DNA by real-time PCR. A decision tree–based algorithm was built to discriminate benign and malignant tumors and to type the thyroid cancer. Leave-p-out cross-validation with five partitions was performed to estimate prediction quality. A comparison of two independent samples by quantitative traits was carried out via the Mann–Whitney U test. Results A minimum set of markers was selected (levels of HMGA2 mRNA and miR-375, − 221, and -146b in combination with the mitochondrial-to-nuclear DNA ratio) and yielded highly accurate discrimination (sensitivity = 0.97; positive predictive value = 0.98) between goiters with benign tumors and malignant tumors and accurate typing of papillary, medullary, and Hürthle cell carcinomas. The results support an alternative classification of follicular tumors, which differs from the histological one. Conclusions The study shows the feasibility of the preoperative differential diagnosis of thyroid nodules using a panel of several molecular markers by a simple PCR-based method. Combining markers of different types increases the accuracy of classification.
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Affiliation(s)
- Sergei E Titov
- Institute of Molecular and Cellular Biology, Novosibirsk, 630090, Russia. .,AO Vector-Best, Koltsovo, 630559, Russia.
| | - Mikhail K Ivanov
- Institute of Molecular and Cellular Biology, Novosibirsk, 630090, Russia.,AO Vector-Best, Koltsovo, 630559, Russia
| | - Pavel S Demenkov
- Institute of Cytology and Genetics, Novosibirsk, 630090, Russia.,Novosibirsk State University, Novosibirsk, 630090, Russia
| | | | - Eugenia S Kozorezova
- Siberian District Medical Center of Federal Medical and Biological Agency, Novosibirsk, 630007, Russia
| | - Anastasia V Malek
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, 197758, Russia
| | - Yulia A Veryaskina
- Institute of Molecular and Cellular Biology, Novosibirsk, 630090, Russia
| | - Igor F Zhimulev
- Institute of Molecular and Cellular Biology, Novosibirsk, 630090, Russia
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14
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Song M, Wang N, Li Z, Zhang Y, Zheng Y, Yi P, Chen J. miR‐125a‐3p suppresses the growth and progression of papillary thyroid carcinoma cell by targeting MMP11. J Cell Biochem 2019; 121:984-995. [PMID: 31489990 DOI: 10.1002/jcb.29333] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/27/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Min Song
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Na Wang
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Zhen Li
- Department of Chest Surgery Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Yanfang Zhang
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Yingying Zheng
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Pengfei Yi
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
| | - Jing Chen
- Department of Endocrinology Affiliated Hospital of Jining Medical University Jining Shandong China
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15
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Novel electrochemical nanoswitch biosensor based on self-assembled pH-sensitive continuous circular DNA. Biosens Bioelectron 2019; 131:274-279. [DOI: 10.1016/j.bios.2019.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 02/07/2023]
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16
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Schmid KW. Warum muss ein Schilddrüsentumor als Karzinom klassifiziert werden, wenn er sich biologisch nicht wie Krebs verhält? ONKOLOGE 2019. [DOI: 10.1007/s00761-019-0548-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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17
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Pan Y, Xu T, Liu Y, Li W, Zhang W. Upregulated circular RNA circ_0025033 promotes papillary thyroid cancer cell proliferation and invasion via sponging miR-1231 and miR-1304. Biochem Biophys Res Commun 2019; 510:334-338. [PMID: 30709584 DOI: 10.1016/j.bbrc.2019.01.108] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 01/25/2019] [Indexed: 01/16/2023]
Abstract
Recent evidence revealed that circular RNAs (circRNAs) are key regulators for tumorigenesis. However, their roles in papillary thyroid cancer (PTC) is not fully understood. In the current work, the differentially expressed circRNAs between PTC tissues and adjacent noncancerous tissue samples were screened by circRNA microarray. We further selected the highest expressed circRNA (circ_0025033) in tumorous tissues for the study. qRT-PCR was used to measure the level of circ_0025033 in PTC tissue samples and cell lines. Gain/loss of function assays were carried out to determine the effect of circ_0025033 on cell viability, clone-forming, apoptosis, migration and invasion. Dual-luciferase reporter assays were conducted to investigate the mechanisms of circ_0025033 in PTC. The data showed that circ_0025033 aggravated cell proliferation, migration and invasion and inhibited cell apoptosis. Additionally, circ_0025033 could directly sponge miR-1231 and miR-1304 in PTC cells. Furthermore, the oncogenic role of circ_0025033 is dependent on its suppression of miR-1231 and miR-1304. Collectively, this work uncovers a novel signal of circ_0025033/miR-1231/miR-1304 involved in PTC initiation and progression.
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Affiliation(s)
- Yanhui Pan
- Department of Endocrinology, The First Hospital of Qiqihar, Qiqihar, 161000, China
| | - Tingting Xu
- Department of Internal Medicine, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - Yuanzhi Liu
- Department of Endocrinology, The First Hospital of Qiqihar, Qiqihar, 161000, China
| | - Weiwei Li
- Department of Endocrinology, The First Hospital of Qiqihar, Qiqihar, 161000, China
| | - Wei Zhang
- Department of Endocrinology, The First Hospital of Qiqihar, Qiqihar, 161000, China.
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18
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Yu C, Zhang L, Luo D, Yan F, Liu J, Shao S, Zhao L, Jin T, Zhao J, Gao L. MicroRNA-146b-3p Promotes Cell Metastasis by Directly Targeting NF2 in Human Papillary Thyroid Cancer. Thyroid 2018; 28:1627-1641. [PMID: 30244634 PMCID: PMC6308293 DOI: 10.1089/thy.2017.0626] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background: MiR-146b has been reported to be overexpressed in papillary thyroid cancer (PTC) tissues and associated with aggressive PTC. MiR-146b is regarded as a relevant diagnostic marker for this type of cancer. MiR-146b-5p has been confirmed to increase cell proliferation by repressing SMAD4. However, detailed functional analysis of another mature form of miR-146b, miR-146b-3p, has not been carried out. This study aimed to identify the differential expression of miR-146b-5p and miR-146b-3p in more aggressive PTC associated with lymph node metastasis, and further elucidate the contribution and mechanism of miR-146b-3p in the process of PTC metastasis. Methods: Expression of miR-146b-5p and miR-146b-3p was assessed in formalin-fixed paraffin-embedded tissue samples from PTC patients, and the relationship with lymph node metastasis was analyzed. A variety of PTC cells, including BHP10-3, BHP10-3SCmice, and K1 cells, were cultured and treated with miR-146b-5p or miR-146b-3p mimics/inhibitors. The cell migration and invasion abilities were characterized by the real-time cell analyzer assay and Transwell™ assay. PTC xenograft models were used to examine the effect of miR-146b-3p on PTC metastatic ability in vivo. Direct downstream targets of miR-146b-3p were analyzed by luciferase reporter assay and Western blotting. The mechanism by which miR-146b-3p affects cell metastasis was further characterized by co-transfection with merlin, the protein product of the NF2 gene. Results: MiR-146b-5p and miR-146b-3p expression was significantly higher in thyroid cancer tissues and cell lines than in normal thyroid tissue and cells. Moreover, expression of miR-146b-5p and miR-146b-3p was further increased in thyroid metastatic nodes than in thyroid cancer. After overexpression of miR-146b-5p or miR-146b-3p in BHP10-3 or K1 cells, PTC migration and invasion were increased. Notably, miR-146b-3p increased cell migration and invasion more obviously than did miR-146b-5p. Overexpression of miR-146b-3p also significantly promoted PTC tumor metastasis in vivo. Luciferase reporter assay results revealed that NF2 is a downstream target of miR-146b-3p in PTC cells, as miR-146b-3p bound directly to the 3' untranslated region of NF2, thus reducing protein levels of NF2. Overexpression of merlin reversed the enhanced aggressive effects of miR-146b-3p. Conclusions: Overexpression of miR-146b-5p and miR-146b-3p is associated with PTC metastasis. MiR-146b-3p enhances cell invasion and metastasis more obviously than miR-146b-5p through the suppression of the NF2 gene. These findings suggest a potential diagnostic and therapeutic value of these miRNAs in PTC metastasis.
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Affiliation(s)
- Chunxiao Yu
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
- Address correspondence to: Chunxiao Yu, PhD, Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, 324 Jing 5 Road, Jinan, Shandong 2500021, China
| | - Li Zhang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
- Department of Endocrinology, Shandong Provincial Third Hospital, Shandong, P.R. China
| | - Dandan Luo
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
- School of Medicine, Shandong University, Shandong, P.R. China
| | - Fang Yan
- Department of Pain Management, Shandong Provincial Hospital affiliated to Shandong University, Shandong, P.R. China
| | - Jia Liu
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
| | - Shanshan Shao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
| | - Lifang Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
| | - Tong Jin
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, P.R. China
| | - Jiajun Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
| | - Ling Gao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Shandong, P.R. China
- Scientific Center, Shandong Provincial Hospital affiliated to Shandong University, Shandong, P.R. China
- Ling Gao, PhD, MD, Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, 324 Jing 5 Road, Jinan, Shandong 2500021, China
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19
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Loss of DNA methylation is related to increased expression of miR-21 and miR-146b in papillary thyroid carcinoma. Clin Epigenetics 2018; 10:144. [PMID: 30454026 PMCID: PMC6245861 DOI: 10.1186/s13148-018-0579-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022] Open
Abstract
Background DNA methylation in miRNA genes has been reported as a mechanism that may cause dysregulation of mature miRNAs and consequently impact the gene expression. This mechanism is largely unstudied in papillary thyroid carcinomas (PTC). Methods To identify differentially methylated miRNA-encoding genes, we performed global methylation analysis (Illumina 450 K), integrative analysis (TCGA database), data confirmation (pyrosequencing and RT-qPCR), and functional assays. Results Methylation analysis revealed 27 differentially methylated miRNA genes. The integrative analyses pointed out miR-21 and miR-146b as potentially regulated by methylation (hypomethylation and increased expression). DNA methylation and expression patterns of miR-21 and miR-146b were confirmed as altered, as well as seven of 452 mRNAs targets were down-expressed. The combined methylation and expression levels of miR-21 and miR-146b showed potential to discriminate malignant from benign lesions (91–96% sensitivity and 96–97% specificity). An increased expression of miR-146b due to methylation loss was detected in the TPC1 cell line. The miRNA mimic transfection highlighted putative target mRNAs. Conclusions The increased expression of miR-21 and miR-146b due to loss of DNA methylation in PTC resulted in the disruption of the transcription machinery and biological pathways. These miRNAs are potential diagnostic biomarkers, and these findings provide support for future development of targeted therapies. Electronic supplementary material The online version of this article (10.1186/s13148-018-0579-8) contains supplementary material, which is available to authorized users.
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20
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Zhang H, Cai Y, Zheng L, Zhang Z, Lin X, Jiang N. LncRNA BISPR promotes the progression of thyroid papillary carcinoma by regulating miR-21-5p. Int J Immunopathol Pharmacol 2018; 32:2058738418772652. [PMID: 29856242 PMCID: PMC5985546 DOI: 10.1177/2058738418772652] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Our study attempted to verify the effect of lncRNA BST2 interferon-stimulated
positive regulator (BISPR) on cell viability, propagation and invasiveness of
thyroid papillary carcinoma (TPC) and the interactive relationship between BISPR
and miR-21-5p. Microarray analyzed the aberrant expression lncRNA BISPR in TPC.
BISPR and miR-21-5p as well as B-cell lymphoma-2 (Bcl-2) expressions in TPC
cells were determined by quantitative polymerase chain reaction (qRT-PCR) and
Western blot. Cell counting kit-8 (CCK-8) assay, dual luciferase reporter assay,
and transwell assay were conducted to manifest cell viability, propagation, and
invasiveness of TPC cells. Flow cytometry was performed to determine the
apoptosis and cell cycle of TPC cells. Mouse xenograft model was built to
testify the effect of BISPR on tumor growth. BISPR in TPC tissues was
over-expressed. BISPR knockdown restrained the propagation and invasiveness and
enhanced the iodine uptake of TPC cells. The tumor-forming rate reduced after
BISPR knockdown. In addition, miR-21-5p was lowly expressed in cancer tissues.
BISPR promoted the development of TPC cells by inhibiting miR-21-5p expression.
Bcl-2 was suppressed by miR-21-5p and sh-BISPR. BISPR, which was over-expressed
in TPC, improved TPC cell viability, propagation, and invasiveness. MiR-21-5p
was lowly expressed in TPC which inhibited Bcl-2 expression. BISPR stimulated
propagation and invasiveness of TPC cells by depressing miR-21-5p.
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Affiliation(s)
- Hong Zhang
- 1 Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangzhou, China.,2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuechang Cai
- 2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Li Zheng
- 2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhanlei Zhang
- 2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Lin
- 2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ningyi Jiang
- 2 Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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21
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Chen LL, Gao GX, Shen FX, Chen X, Gong XH, Wu WJ. SDC4 Gene Silencing Favors Human Papillary Thyroid Carcinoma Cell Apoptosis and Inhibits Epithelial Mesenchymal Transition via Wnt/β-Catenin Pathway. Mol Cells 2018; 41:853-867. [PMID: 30165731 PMCID: PMC6182223 DOI: 10.14348/molcells.2018.0103] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/10/2018] [Accepted: 07/29/2018] [Indexed: 01/06/2023] Open
Abstract
As the most common type of endocrine malignancy, papillary thyroid cancer (PTC) accounts for 85-90% of all thyroid cancers. In this study, we presented the hypothesis that SDC4 gene silencing could effectively attenuate epithelial mesenchymal transition (EMT), and promote cell apoptosis via the Wnt/β-catenin signaling pathway in human PTC cells. Bioinformatics methods were employed to screen the determined differential expression levels of SDC4 in PTC and adjacent normal samples. PTC tissues and adjacent normal tissues were prepared and their respective levels of SDC4 protein positive expression, in addition to the mRNA and protein levels of SDC4, Wnt/β-catenin signaling pathway, EMT and apoptosis related genes were all detected accordingly. Flow cytometry was applied in order to detect cell cycle entry and apoptosis. Finally, analyses of PTC migration and invasion abilities were assessed by using a Transwell assay and scratch test. In PTC tissues, activated Wnt/β-catenin signaling pathway, increased EMT and repressed cell apoptosis were determined. Moreover, the PTC K1 and TPC-1 cell lines exhibiting the highest SDC4 expression were selected for further experiments. In vitro experiments revealed that SDC4 gene silencing could suppress cell migration, invasion and EMT, while acting to promote the apoptosis of PTC cells by inhibiting the activation of the Wnt/β-catenin signaling pathway. Besides, si-β-catenin was observed to inhibit the promotion of PTC cell migration and invasion caused by SDC4 overexpression. Our study revealed that SDC4 gene silencing represses EMT, and enhances cell apoptosis by suppressing the activation of the Wnt/β-catenin signaling pathway in human PTC.
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Affiliation(s)
- Liang-Liang Chen
- Department of Surgical Oncology, Ningbo No.2 Hospital, Ningbo 315010,
P.R. China
| | - Ge-Xin Gao
- School of Nursing, Wenzhou Medical University, Wenzhou 325000,
P.R. China
| | - Fei-Xia Shen
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015,
P.R. China
| | - Xiong Chen
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015,
P.R. China
| | - Xiao-Hua Gong
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015,
P.R. China
| | - Wen-Jun Wu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015,
P.R. China
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22
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Wang M, Chen B, Ru Z, Cong L. CircRNA circ-ITCH suppresses papillary thyroid cancer progression through miR-22-3p/CBL/β-catenin pathway. Biochem Biophys Res Commun 2018; 504:283-288. [PMID: 30190130 DOI: 10.1016/j.bbrc.2018.08.175] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/30/2022]
Abstract
While recent evidence has uncovered that circular RNAs (circRNAs) are vital regulators of carcinogenesis, their role in papillary thyroid cancer (PTC) is not clearly understood. In this study, we reveal that lower levels of circRNA circ-ITCH are expressed in PTC tissues than in normal adjacent tissues. Gain-of-functional assays show that circ-ITCH overexpression suppresses PTC cell proliferation and invasion and promotes apoptosis in vitro. Overexpression of circ-ITCH also leads to impaired tumor growth in vivo. Bioinformatics analysis and luciferase reporter assays demonstrate that circ-ITCH sponges miR-22-3p to upregulate the expression of CBL, an E3 ligase of nuclear β-catenin. Elevated levels of CBL suppress activation of the Wnt/β-catenin pathway and consequently attenuates PTC progression. In summary, our study reveals a novel signaling pathway of circ-ITCH/miR-22-3p/CBL/β-catenin involved in PTC development and progression.
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Affiliation(s)
- Minnan Wang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150086, Heilongjiang Province, China
| | - Bo Chen
- Department of Vascular Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150086, Heilongjiang Province, China
| | - Zixuan Ru
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150086, Heilongjiang Province, China
| | - Li Cong
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Harbin Medical University, Harbin, 150086, Heilongjiang Province, China.
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Liang L, Zheng X, Hu M, Cui Y, Zhong Q, Wang S, Huang F. MiRNA-221/222 in thyroid cancer: A meta-analysis. Clin Chim Acta 2018; 484:284-292. [PMID: 29894779 DOI: 10.1016/j.cca.2018.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 10/14/2022]
Abstract
OBJECTIVES A meta-analysis was performed to observe whether a difference in miRNA-221/222 expression exists in thyroid cancer with normal thyroid or BTLs (benign thyroid lesions) and, under this premise, assess its diagnostic efficacy for thyroid cancer. METHODS Systematic electronic literature searches were conducted to include PubMed, the Cochrane Central Register of Controlled Trials, and Web of Science. The combined fold change (FC) was calculated, and pooled estimates of sensitivity, specificity, diagnostic odds ratio (DOR) and summary receiver operating characteristic (SROC) curves were calculated. RESULTS Twenty-seven articles were included in this meta-analysis. The combined FC of miRNA-221/222 were 13.85 and 13.75 in thyroid cancer with normal control. For miRNA-221/222, the pooled sensitivity was 0.79 (95% CI = 0.73-0.85), specificity was 0.84 (95% CI = 0.76-0.90) and AUC (area under the curve) value was 0.88 (0.85-0.91). For miRNA-221, the pooled sensitivity was 0.82 (95% CI = 0.76-0.86) and specificity was 0.84 (95%CI = 0.74-0.91). For miRNA-222, the pooled sensitivity was 0.78 (95%CI = 0.68-0.85) and specificity was 0.83 (95% CI = 0.70-0.92). CONCLUSION Differences in expression levels of miRNA-221/222 can provide clues for exploring the etiology of thyroid cancer. In addition, miRNA-221/222 were promising molecular biomarkers that may significantly improve the diagnostic accuracy of thyroid cancer.
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Affiliation(s)
- Ling Liang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
| | - Xucai Zheng
- Department of Head and Neck, Breast Surgery, Anhui Provincial Cancer Hospital (West Branch of The First Affiliated Hospital of University of Science and Technology of China), Hefei, Anhui 230088, China
| | - Mingjun Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
| | - Yanjie Cui
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
| | - Qi Zhong
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
| | - Shengying Wang
- Department of Head and Neck, Breast Surgery, Anhui Provincial Cancer Hospital (West Branch of The First Affiliated Hospital of University of Science and Technology of China), Hefei, Anhui 230088, China.
| | - Fen Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China; Central Laboratory of Preventive Medicine, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China.
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24
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Rossi ED, Martini M, Capodimonti S, Cenci T, Bilotta M, Pierconti F, Pontecorvi A, Lombardi CP, Fadda G, Larocca LM. Morphology combined with ancillary techniques: An algorithm approach for thyroid nodules. Cytopathology 2018; 29:418-427. [PMID: 29683529 DOI: 10.1111/cyt.12555] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2018] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Several authors have underlined the limits of morphological analysis mostly in the diagnosis of follicular neoplasms (FN). The application of ancillary techniques, including immunocytochemistry (ICC) and molecular testing, contributes to a better definition of the risk of malignancy (ROM) and management of FN. According to literature, the application of models, including the evaluation of ICC, somatic mutations (ie, BRAFV600E ), micro RNA analysis is proposed for FNs. This study discusses the validation of a diagnostic algorithm in FN with a special focus on the role of morphology then followed by ancillary techniques. METHODS From June 2014 to January 2016, we enrolled 37 FNs with histological follow-up. In the same reference period, 20 benign nodules and 20 positive for malignancy were selected as control. ICC, BRAFV600E mutation and miR-375 were carried out on LBC. RESULTS The 37 FNs included 14 atypia of undetermined significance/follicular lesion of undetermined significance and 23 FN. Specifically, atypia of undetermined significance/follicular lesion of undetermined significance resulted in three goitres, 10 follicular adenomas and one NIFTP whereas FN/suspicious for FN by seven follicular adenomas and 16 malignancies (nine non-invasive follicular thyroid neoplasms with papillary-like nuclear features, two invasive follicular variant of papillary thyroid carcinoma [PTC] and five PTC). The 20 positive for malignancy samples included two invasive follicular variant of PTC, 16 PTCs and two medullary carcinomas. The morphological features of BRAFV600E mutation (nuclear features of PTC and moderate/abundant eosinophilic cytoplasms) were associated with 100% ROM. In the wild type cases, ROM was 83.3% in presence of a concordant positive ICC panel whilst significantly lower (10.5%) in a negative concordant ICC. High expression values of MirR-375 provided 100% ROM. CONCLUSIONS The adoption of an algorithm might represent the best choice for the correct diagnosis of FNs. The morphological detection of BRAFV600E represents the first step for the identification of malignant FNs. A significant reduction of unnecessary thyroidectomies is the goal of this application.
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Affiliation(s)
- E D Rossi
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - M Martini
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - S Capodimonti
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - T Cenci
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - M Bilotta
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - F Pierconti
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - A Pontecorvi
- Division of Endocrinology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - C P Lombardi
- Division of Endocrine-Surgery, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - G Fadda
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
| | - L M Larocca
- Division of Anatomic Pathology and Histology, Fondazione Policlinico Universitario "Agostino Gemelli" School of Medicine, Rome, Italy
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25
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Feng K, Liu Y, Xu LJ, Zhao LF, Jia CW, Xu MY. Long noncoding RNA PVT1 enhances the viability and invasion of papillary thyroid carcinoma cells by functioning as ceRNA of microRNA-30a through mediating expression of insulin like growth factor 1 receptor. Biomed Pharmacother 2018; 104:686-698. [PMID: 29803929 DOI: 10.1016/j.biopha.2018.05.078] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Invasion and metastasis of papillary thyroid carcinoma (PTC) significantly affects prognosis and quality of life of patients. Herein, we explored the binding relationship of long noncoding RNA PVT1 as ceRNA to microRNA-30a (miR-30a), and their effect on the development of PTC through regulating insulin like growth factor 1 receptor (IGF1R). METHODS PTC and adjacent normal tissues were collected, where the qRT-PCR and western blot assay were employed to evaluate the expression levels of PVT1, miR-30a and IGF1R. The correlation between PVT1 expression and clinicopathological characteristics of PTC patients was observed. PTC cell lines with the most/least significant difference from normal thyroid cells were selected and treated with siRNA PVT1 or overexpression PVT1 plasmids, miR-30a mimics or miR-30a inhibitors. Nucleus and cytoplasm segmentation was used to identify subcellular fractionation of PVT1. The binding relationship of PVT1 to miR-30a and the targeting relationship of miR-30a to IGF1R were confirmed by using bioinformatic prediction program, dual-luciferase reporter gene assay and RNA-pull down. Cell viability, cell cycle and apoptosis, invasion and migration capacities were assessed by MTT, flow cytometry, Transwell assay and scratch test, respectively. Western blot assay was employed to examine protein expression of IGF1R, apoptosis-related factors (caspase-3, cleaved capase-3) and epithelial-mesenchymal transition (EMT)-related factors (E-cadherin, Vimentin). RESULTS In the PTC tissues and cells, PVT1 and IGF1R were highly expressed and miR-30a was poorly expressed. PVT1 exerted its effects on PTC mainly in the cytoplasm. The PVT1 expression was correlated with TNM staging, LNM and tumor infiltration of PTC. The competitive binding of PVT1 to miR-30a enhanced expression of IGF1R. In the in vitro experiments, BCPAP and TPC-1 cells were selected. When subjected to siRNA PVT1 or miR-30a mimics, BCPAP and TPC-1 cells exhibited inhibited proliferation, cell cycle progression, invasion, migration, EMT (increased E-cadherin and reduced Vimentin) and promoted apoptosis (reduced caspase-3 and increased cleaved capase-3), and moreover, the expression of IGF1R was reduced. CONCLUSION This study provides evidence that long noncoding RNA PVT1 enhances the expression of IGF1R through competitive binding to miR-30a, whereby PVT1 facilitates the development of PTC.
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Affiliation(s)
- Kun Feng
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China.
| | - Yu Liu
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China
| | - Li-Juan Xu
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China
| | - Ling-Fei Zhao
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China
| | - Chao-Wen Jia
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China
| | - Ming-Yan Xu
- Department of Endocrinology, Heilongjiang Provincial Hospital, Harbin 150001, PR China
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26
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Jahanbani I, Al-Abdallah A, Ali RH, Al-Brahim N, Mojiminiyi O. Discriminatory miRNAs for the Management of Papillary Thyroid Carcinoma and Noninvasive Follicular Thyroid Neoplasms with Papillary-Like Nuclear Features. Thyroid 2018; 28:319-327. [PMID: 29378472 DOI: 10.1089/thy.2017.0127] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Papillary thyroid carcinoma (PTC) variants have several overlapping clinical and pathological features. The World Health Organization recently published a new classification of thyroid tumors containing significant revisions. Encapsulated papillary thyroid carcinoma (EPTC) has been recognized as a distinctive variant of PTC. The noninvasive encapsulated follicular variant of PTC has been reclassified as noninvasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTP). Different neoplasms are associated with different outcomes and require different clinical management. The objective of this study was to explore the miRNA expression patterns specific for classic PTC (cPTC), EPTC, follicular variant of PTC, and NIFTP in order to identify biomarkers of diagnostic and prognostic utility aiming for better clinical decisions. METHODS The expression of 84 miRNAs was determined by quantitative real-time polymerase chain reaction in 113 thyroid tissues of PTC (classic, encapsulated, and follicular), NIFTP, and hyperplasia lesions. Expression of the same miRNAs was tested in pre- and postoperative whole-blood samples. RESULTS Several miRNAs were differentially expressed in the different groups. Expression profile of miRNAs in the tissue was similarly reflected in the circulation. Receiver operating characteristic curve analysis showed that miR-7-5p, miR-222-3p, and miR-146b-5p can discriminate between the different groups with high sensitivity and specificity. Downregulation of miR-144-3p, miR-15a-5p, miR-20a-5p, miR-32-5p miR-142-5p, miR-143-3p, and miR-20b-5p is associated with aggressive behavior in cPTC. Circulating miR-146b-5p, miR-222-3p, miR-155-5p, and miR-378a-3p are potential diagnostic and follow up biomarkers for PTC. CONCLUSION Downregulation of miR-7-5p discriminates NIFTP from hyperplasia. Upregulation of miR-222-3p discriminates follicular variant of PTC from NIFTP. High levels of miR-146b-5p distinctively characterize cPTC. These miRNAs are useful biomarkers in the diagnosis of PTC and NIFTP, and help to avoid unnecessary thyroidectomy and improve clinical management.
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Affiliation(s)
- Iman Jahanbani
- 1 Department of Pathology, Faculty of Medicine, Kuwait University , Safat, Kuwait
| | - Abeer Al-Abdallah
- 1 Department of Pathology, Faculty of Medicine, Kuwait University , Safat, Kuwait
| | - Rola H Ali
- 1 Department of Pathology, Faculty of Medicine, Kuwait University , Safat, Kuwait
| | - Nabeel Al-Brahim
- 2 Department of Pathology, Farwaniya Hospital , Kuwait City, Kuwait
| | - Olusegun Mojiminiyi
- 1 Department of Pathology, Faculty of Medicine, Kuwait University , Safat, Kuwait
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27
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Chen L, Yang C, Feng J, Liu X, Tian Y, Zhao L, Xie R, Liu C, Zhao S, Sun H. Clinical significance of miR-34a expression in thyroid diseases - an 18F-FDG PET-CT study. Cancer Manag Res 2017; 9:903-913. [PMID: 29290693 PMCID: PMC5735987 DOI: 10.2147/cmar.s143110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Purpose To evaluate the possible roles of miR-34a expression in thyroid lesions, to unravel the correlation between fluorodeoxyglucose (FDG) uptake and miR-34a expression and moreover, to discover the underlying mechanisms by which miR-34a regulates FDG avidity. Methods We retrospectively reviewed 75 patients with pathology-confirmed thyroid diseases who underwent 18F-FDG positron emission tomography/computed tomography (PET/CT) within 3 months before undergoing thyroid surgery and miR-34a analysis from June 2012 to July 2017. 18F-FDG uptake of thyroid lesions was also analyzed semiquantitatively using maximum standardized uptake value (SUVmax). The association between miR-34a expression and clinicopathological variables (age, sex, TNM stage, histopathology, lesion numbers, location and 18F-FDG avidity) was investigated. When there were multiple lesions in thyroid bed, only the one with the highest 18F-FDG uptake was analyzed. Next, we inhibited the miR-34a expression in TPC-1 cells and detected the expression of glucose transporter 1 (GLUT1) mRNA and protein. Results In the patients cohort, miR-34a was upregulated in those with malignant thyroid diseases compared with benign lesions. The expression of miR-34a was associated with tumor stages, histopathological types and SUVmax. There was an inverse relationship between miR-34a expression and SUVmax in patients with thyroid diseases (Spearman correlation coefficient = −0.553, P < 0.0001). With an SUVmax of 4.3 as the threshold, sensitivity and specificity of the prediction of miR-34a expression (low or high) were 70% and 94.3%, respectively. The area under the receiver operating characteristic curve was 0.843 (95% confidence interval: 0.749, 0.936; P = 0.001). Inhibiting miR-34a in TPC-1 cells significantly increased GLUT1 mRNA and protein expression. Conclusion miR-34a expression was upregulated in thyroid lesions, negatively correlated with SUVmax and can be predicted by FDG SUVmax. In addition, miR-34a may regulate FDG avidity via targeting GLUT1.
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Affiliation(s)
| | | | | | | | | | | | | | - Chao Liu
- Department of Nuclear Medicine, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
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28
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Minna E, Romeo P, Dugo M, De Cecco L, Todoerti K, Pilotti S, Perrone F, Seregni E, Agnelli L, Neri A, Greco A, Borrello MG. miR-451a is underexpressed and targets AKT/mTOR pathway in papillary thyroid carcinoma. Oncotarget 2017; 7:12731-47. [PMID: 26871295 PMCID: PMC4914318 DOI: 10.18632/oncotarget.7262] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 01/26/2016] [Indexed: 12/18/2022] Open
Abstract
Papillary Thyroid Carcinoma (PTC) is the most frequent thyroid cancer. Although several PTC-specific miRNA profiles have been reported, only few upregulated miRNAs are broadly recognized, while less consistent data are available about downregulated miRNAs. In this study we investigated miRNA deregulation in PTC by miRNA microarray, analysis of a public dataset from The Cancer Genome Atlas (TCGA), literature review and meta-analysis based on a univocal miRNA identifier derived from miRBase v21. A list of 18 miRNAs differentially expressed between PTC and normal thyroid was identified and validated in the TCGA dataset. Furthermore, we compared our signature with miRNA profiles derived from 15 studies selected from literature. Then, to select possibly functionally relevant miRNA, we integrated our miRNA signature with those from two in vitro cell models based on the PTC-driving oncogene RET/PTC1. Through this strategy, we identified commonly deregulated miRNAs, including miR-451a, which emerged also by our meta-analysis as the most frequently reported downregulated miRNA. We showed that lower expression of miR-451a correlates with aggressive clinical-pathological features of PTC as tall cell variant, advanced stage and extrathyroid extension. In addition, we demonstrated that ectopic expression of miR-451a impairs proliferation and migration of two PTC-derived cell lines, reduces the protein levels of its recognized targets MIF, c-MYC and AKT1 and attenuates AKT/mTOR pathway activation. Overall, our study provide both an updated overview of miRNA deregulation in PTC and the first functional evidence that miR-451a exerts tumor suppressor functions in this neoplasia.
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Affiliation(s)
- Emanuela Minna
- Department of Experimental Oncology and Molecular Medicine, Molecular Mechanisms Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paola Romeo
- Department of Experimental Oncology and Molecular Medicine, Molecular Mechanisms Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Matteo Dugo
- Department of Experimental Oncology and Molecular Medicine, Functional Genomics Core Facility, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Loris De Cecco
- Department of Experimental Oncology and Molecular Medicine, Functional Genomics Core Facility, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Katia Todoerti
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Silvana Pilotti
- Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Federica Perrone
- Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Ettore Seregni
- Department of Diagnostic Imaging and Radiotherapy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Luca Agnelli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Antonino Neri
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy.,Hematology Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Angela Greco
- Department of Experimental Oncology and Molecular Medicine, Molecular Mechanisms Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maria Grazia Borrello
- Department of Experimental Oncology and Molecular Medicine, Molecular Mechanisms Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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Han C, Zheng W, Ge M, Wang K, Xiang Y, Wang P. Downregulation of cyclin-dependent kinase 8 by microRNA-148a suppresses proliferation and invasiveness of papillary thyroid carcinomas. Am J Cancer Res 2017; 7:2081-2090. [PMID: 29119056 PMCID: PMC5665854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023] Open
Abstract
MicroRNAs (miRNAs) are important gene regulators that play key roles in tumor genesis. In this study, we investigate the role of miR-148a in the development of papillary thyroid cancer (PTC). Data from the cancer genome atlas (TCGA) indicate that miR-148a is downregulated in PTC tissues; we also find that miR-148a is downregulated in tissue samples from PTC patients and PTC cell lines. Overexpression of miR-148a significantly suppresses PTC cell proliferation, migration and invasiveness in vitro, and inhibits tumor growth in vivo as well. We have identified the cyclin-dependent kinase 8 (CDK8) gene as a direct target of miR-148a using the online software packages TargetScan and miRanda. Overexpression of miR-148a significantly represses CDK8 expression by directly targeting the 3'-untranslated region (3'-UTR) of the CDK8 gene in PTC tissues and cell lines; overexpression of CDK8 reverses the inhibitory effects of miR-148a on PTC cell growth, migration and invasiveness. Taken together, our results indicate that miR-148a functions as a tumor suppressor in PTC by repressing CDK8 expression.
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Affiliation(s)
- Chun Han
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
| | - Weihui Zheng
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
| | - Minghua Ge
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
| | - Kejing Wang
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
| | - Yangfeng Xiang
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
| | - Peng Wang
- Department of Head & Neck Surgery, Zhejiang Cancer HospitalHangzhou 310022, China
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Functional analysis of a novel, thyroglobulin-embedded microRNA gene deregulated in papillary thyroid carcinoma. Sci Rep 2017; 7:9942. [PMID: 28855631 PMCID: PMC5577171 DOI: 10.1038/s41598-017-10318-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/01/2017] [Indexed: 01/21/2023] Open
Abstract
MicroRNAs, non-coding regulators of gene expression, are known culprits of thyroid cancer. Using next-generation sequencing, we identified a novel microRNA gene, encoded within an important thyroid regulator - thyroglobulin, and analyzed its functionality in the thyroid gland. In vitro and in silico analyses proved that the novel miR-TG is processed from the precursor, and co-expressed with thyroglobulin. Both genes are specific for thyroid tissue and downregulated in papillary thyroid carcinoma by 44% (p = 0.04) and 48% (p = 0.001), respectively. Putative target genes for miR-TG were identified using in silico tools, which pinpointed MAP4K4, an oncogene upregulated in thyroid cancer. Analysis of transcriptome by RNA-seq revealed that overexpression of miR-TG in PTC-derived cell line led to downregulation of several genes, including MAP4K4 (fold change 0,82; p = 0.036). The finding was confirmed by SQ-PCR (fold change 071; p = 0.004). Direct interaction between miR-TG and MAP4K4 was confirmed in the luciferase assay (p = 0.0006). Functional studies showed increase proliferation in K1 cell line transfected with miR-TG. We propose that in normal thyroid miR-TG plays a fine-tuning effect on the maintenance of MAPK pathway, inhibiting the expression of miR's target MAP4K4. This regulation is disturbed in cancer due to downregulation of the novel, thyroglobulin-embedded microRNA, characterized in this study.
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31
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Rosignolo F, Memeo L, Monzani F, Colarossi C, Pecce V, Verrienti A, Durante C, Grani G, Lamartina L, Forte S, Martinetti D, Giuffrida D, Russo D, Basolo F, Filetti S, Sponziello M. MicroRNA-based molecular classification of papillary thyroid carcinoma. Int J Oncol 2017; 50:1767-1777. [PMID: 28393181 DOI: 10.3892/ijo.2017.3960] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 02/28/2017] [Indexed: 11/05/2022] Open
Abstract
MicroRNA (miRNA) expression is dysregulated in many human malignancies, and a growing number of studies are focused on their potential use as tumor biomarkers. To identify a miRNA signature for papillary thyroid carcinomas (PTC), we investigated miRNA expression profiles in two independent cohorts of PTCs, which included major histological subtypes [classical-type (PTC‑CT), follicular-variant (PTC‑FV), and tall-cell variant (PTC‑TCV)] and cases with low or intermediate risk of recurrence. Using TaqMan® Array Human MicroRNA A+B Cards v3.0, we first performed microRNA profiling of normal and neoplastic thyroid tissues from 29 PTC patients. Promising candidates were then investigated in a second, independent cohort of 76 PTCs using Custom TaqMan® Array MicroRNA Cards. We identified a molecular signature of 11 miRNAs that were significantly upregulated (miR‑146b-5p, miR‑146b-3p, miR‑221-3p, miR‑222‑5p, miR‑222‑3p) or downregulated (miR‑1179, miR‑486‑5p, miR‑204-5p, miR‑7-2-3p, miR‑144-5p, miR‑140-3p) in PTC tissues vs. normal thyroid tissue. Upregulation of miR‑146b-5p and miR‑222‑3p was also significantly associated with an increased risk of recurrence. Higher than normal expression of miR‑146b-5p and miR‑146b-3p characterized PTC‑CT and PTC‑TCV but not PTC‑FV, whereas miR‑21-5p was significantly upregulated only in PTC‑TCV. When PTC‑FV were subclassified as encapsulated (PTC‑EFV) or infiltrative (PTC‑IFV), miR‑204-5p was downregulated in all histological subtypes except PTC‑EFV, which displayed expression levels similar to those of normal thyroid tissues. These findings provide new insights into the molecular classification of PTC, showing that different miRNA expression profiles are associated with different histological types of PTC and different risks of recurrence.
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Affiliation(s)
- Francesca Rosignolo
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Lorenzo Memeo
- Department of Experimental Oncology, Mediterranean Institute of Oncology, Viagrande, Italy
| | - Fabio Monzani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Cristina Colarossi
- Department of Experimental Oncology, Mediterranean Institute of Oncology, Viagrande, Italy
| | - Valeria Pecce
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Antonella Verrienti
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Cosimo Durante
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Giorgio Grani
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Livia Lamartina
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | | | | | - Dario Giuffrida
- Department of Experimental Oncology, Mediterranean Institute of Oncology, Viagrande, Italy
| | - Diego Russo
- Department of Health Sciences, University of Catanzaro 'Magna Graecia', Catanzaro, Italy
| | - Fulvio Basolo
- Department of Histopathology, University of Pisa, Pisa, Italy
| | - Sebastiano Filetti
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
| | - Marialuisa Sponziello
- Department of Internal Medicine and Medical Specialties, 'Sapienza' University of Rome, Rome, Italy
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Dai L, Wang Y, Chen L, Zheng J, Li J, Wu X. MiR-221, a potential prognostic biomarker for recurrence in papillary thyroid cancer. World J Surg Oncol 2017; 15:11. [PMID: 28061868 PMCID: PMC5219708 DOI: 10.1186/s12957-016-1086-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 12/22/2016] [Indexed: 12/18/2022] Open
Abstract
Background Many studies have reported several transcriptionally deregulated microRNAs (miRNAs) in papillary thyroid cancer (PTC) tissue in comparison with benign thyroid nodules and normal thyroid tissues. However, the correlation between miRNA expressions and PTC recurrence still remains unclear. Methods The PTC patients who scheduled to undergo total thyroidectomy by the same surgical team in Ningbo NO.2 Hospital from March 1998 to March 2008 were enrolled in this study. The clinical and pathological characteristics of each patient were recorded in detail. The selected miRNA expressions were detected using quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR). Potential predictive factors for cancer recurrence were evaluated by univariate and multivariate Cox proportional hazard analysis. Results A total of 78 patients were enrolled with 49 females at a mean age of 45.8 years. Enrolled patients were divided into two groups: nonrecurrent group (n = 54) and recurrent group (n = 24). The results from the univariate Cox proportional hazard analysis revealed that primary tumor size, TNM stage, extrathyroid extension, miR-221, and miR-222 expressions were significantly associated with PTC recurrence (P < 0.05). The tissue expression of miR-221 was the only independent risk factor for PTC recurrence (HR 1.41; 95%CI 1.14–1.95, P = 0.007) by multiple Cox proportional hazard analysis. Conclusions This study identified the potential role of miR-221 as a prognostic biomarker for the recurrence in PTC.
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Affiliation(s)
- Lei Dai
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China
| | - Yaozong Wang
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China
| | - Liangliang Chen
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China
| | - Jueru Zheng
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China
| | - Jianjun Li
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China
| | - Xianjiang Wu
- Department of Thyroid Surgery, Ningbo NO.2 Hospital, NO.41 Xibei Street, Ningbo City, 315000, Zhejiang Province, China.
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Rossi ED, Martini M, Capodimonti S, Cenci T, Larocca LM. The role of miRNAs in the evaluation of follicular thyroid neoplasms: an overview of literature. J Am Soc Cytopathol 2017; 6:96-104. [PMID: 31043264 DOI: 10.1016/j.jasc.2017.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/07/2017] [Accepted: 02/07/2017] [Indexed: 01/21/2023]
Abstract
MicroRNA (miRNA) deregulation has been frequently associated with different human cancers. Not only have miRNAs been involved in almost every cellular function but they have also been linked with a significant number of cancers including thyroid carcinomas. Specifically, thyroid tumors encompass several different miRNA profiles based on the histotypes. Furthermore, thyroid lesions with their broad spectrum of neoplasms (from benign to malignant entities) offer the possibility of studying and recognizing specific subsets of different up-and downregulated miRNAs in each different entity. To date, the majority of authors completed their evaluation mostly by including histologic samples of thyroid tumors. Nonetheless, in the last years, a few studies are focusing on the role of miRNA expression in thyroid fine-needle aspiration cytology (FNAC) regardless of the cytologic preparation, including liquid-based cytology. This growing interest is driven by the possible role of miRNAs in the malignant risk stratification, especially for the indeterminate categories of follicular neoplasms (FNs). In this review we overview the reliability of analyzing miRNAs on thyroid lesions, including those diagnosed as FNs, to identify whether their profiles are likely to distinguish benign from malignant lesions, providing a predictive molecular diagnosis on FNAC.
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Affiliation(s)
- Esther Diana Rossi
- Division of Anatomic Pathology and Histology, Department of Pathology, Università Cattolica del Sacro Cuore, "Agostino Gemelli" School of Medicine, Rome, Italy.
| | - Maurizio Martini
- Division of Anatomic Pathology and Histology, Department of Pathology, Università Cattolica del Sacro Cuore, "Agostino Gemelli" School of Medicine, Rome, Italy
| | - Sara Capodimonti
- Division of Anatomic Pathology and Histology, Department of Pathology, Università Cattolica del Sacro Cuore, "Agostino Gemelli" School of Medicine, Rome, Italy
| | - Tonia Cenci
- Division of Anatomic Pathology and Histology, Department of Pathology, Università Cattolica del Sacro Cuore, "Agostino Gemelli" School of Medicine, Rome, Italy
| | - Luigi Maria Larocca
- Division of Anatomic Pathology and Histology, Department of Pathology, Università Cattolica del Sacro Cuore, "Agostino Gemelli" School of Medicine, Rome, Italy
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Rossi ED, Bizzarro T, Martini M, Capodimonti S, Sarti D, Cenci T, Bilotta M, Fadda G, Larocca LM. The evaluation of miRNAs on thyroid FNAC: the promising role of miR-375 in follicular neoplasms. Endocrine 2016; 54:723-732. [PMID: 26818914 DOI: 10.1007/s12020-016-0866-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 01/11/2016] [Indexed: 12/31/2022]
Abstract
Fine needle aspiration cytology (FNAC) plays an essential role in the evaluation of thyroid nodules especially for the category of follicular neoplasms (FN) representing 25 % of all thyroid cases including different neoplastic entities. Hence, one of the most promising areas is the application of molecular tests to FNAC. Among them, microRNAs (miRNA),identified as negative (post-transcriptional) gene expression regulators involved in tumor development, are likely to discriminate among FNs. Limited data explored the use of miRNAs on FNAC as well as their role in the malignant risk stratification. We aimed to define whether liquid-based cytology (LBC) is a valid method for miRNA evaluation. From June 2014 to March 2015, we enrolled 27FNs with histological follow-up. In the same reference period, 13 benign nodules (BN) and 20 positive for malignancy (PM) were selected as controls. Histologically, FNs resulted in 14 malignancies (3 papillary thyroid carcinoma-PTC and 11 follicular variant of PTC-FVPC) and 13 follicular adenomas (FA). The 20 PMs included two FVPC, 16 PTC and two medullary thyroid carcinoma (MTC). Five miRNAs (10b, 92a, 221/222 cluster, and 375) were studied on LBC and quantified by real-time PCR. Only miR-375 was over-expressed in the FNs diagnosed as carcinomas and in the PMs. A cut-off of 12 miR-375/U6 relative ratio recognized all BNs and 95 % PMs. Specifically, in each category, FVPCs and PTCs did not show any difference while MTCs had the highest value. miR-375 shows 97.1 % sensitivity, 100 % specificity, 96.3 % negative predictive value (NPV), 100 % positive predictive value (PPV), and 98.3 % diagnostic accuracy. LBC is suitable for miRNAs evaluation. miR-375 resulted over-expressed in all malignant FNs and 95 % PMs. It may represent a valid aid in ruling out BNs and supporting PTCs and/or FVPCs.
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Affiliation(s)
- Esther Diana Rossi
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy.
| | - Tommaso Bizzarro
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Maurizio Martini
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Sara Capodimonti
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Diletta Sarti
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Tonia Cenci
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Mirna Bilotta
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Guido Fadda
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
| | - Luigi Maria Larocca
- Division of Anatomic Pathology and Histology, "Agostino Gemelli" School of Medicine, Università Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168, Rome, Italy
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Wang S, Chen Y, Bai Y. p21 participates in the regulation of anaplastic thyroid cancer cell proliferation by miR-146b. Oncol Lett 2016; 12:2018-2022. [PMID: 27602131 DOI: 10.3892/ol.2016.4874] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/18/2016] [Indexed: 01/28/2023] Open
Abstract
Anaplastic thyroid carcinoma (ATC) originates from completely undifferentiated cells, and is the most lethal type of thyroid-derived tumor. Numerous microRNAs have significant roles in tumorigenesis by targeting relevant genes. The role of microRNA 146b (miR-146b) in ATC remains to be elucidated. In order to characterize the role of miR-146b in ATC, overexpression or interference of miR-146b was induced in ATC cell lines, and cell proliferation and migration were evaluated. The potential targets of miR-146b were searched in the Gene Expression Omnibus database for ATC and matched non-tumor control samples. The expression level of potential targets was detected following overexpression or interference of miR-146b in ATC cell lines. In the present study, cell proliferation was promoted when overexpression of miR-146b was induced in ATC, and inhibited when interference of miR-146b was induced, which indicated that miR-146b affects the proliferation of ATC cells in vitro. In addition, cell migration of ATC was also affected by miR-146b. During the search for potential targets of miR-146b in ATC, p21 (also known as p21Waf1/Cip1 or CDKN1A) was noted for its role in cell cycle progression and tumor pathogenesis. The expression level of p21 was influenced by the level of miR-146b, and the results of the present study demonstrated that the level of p21 was increased when FRO cells were transformed with miR-146b mimic, and p21 was downregulated when FRO cells transformed with anti-miR-146b. In conclusion, p21 may participate in the regulation of ATC cell proliferation by miR-146b.
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Affiliation(s)
- Shiyang Wang
- Department of Otorhinolaryngology - Head and Neck Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yangjing Chen
- Department of Otorhinolaryngology - Head and Neck Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yanxia Bai
- Department of Otorhinolaryngology - Head and Neck Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Pohl M, Grabellus F, Worm K, Arnold G, Walz M, Schmid KW, Sheu-Grabellus SY. Intermediate microRNA expression profile in Graves’ disease falls between that of normal thyroid tissue and papillary thyroid carcinoma. J Clin Pathol 2016; 70:33-39. [DOI: 10.1136/jclinpath-2016-203739] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/06/2016] [Accepted: 06/09/2016] [Indexed: 01/27/2023]
Abstract
AimsMany studies have previously reported a higher prevalence of papillary thyroid carcinomas (PTC) in patients with Graves' disease (GD). MicroRNAs (miRNAs) are small, non-coding RNAs that are upregulated in PTC compared with benign thyroid tissue. The objective of the study was to examine the miRNA expression of selected miRNAs that are known to be upregulated in PTC in patients with GD.MethodsParaffin embedded thyroid tissue from 159 patients with GD was screened for expression of the miRNAs 146b, 181b, 21, 221 and 222 by RT-PCR. The expression profiles of four normal thyroids, 50 PTCs without concomitant GD and 11 patients with untreated GD served as the controls.ResultsThe expression pattern of these miRNAs in patients with GD is intermediate between that of benign thyroid tissue (p<0.001) and PTC (in three out of five miRNAs, p<0.001). This corresponds to a 15-fold change for GD versus PTC, and a 31-fold change for GD versus normal thyroid tissue. The miRNA expression in 11 papillary microcarcinomas found in our study (a prevalence of 0.07) was not different from that in PTC samples from patients without GD for four of five miRNA types. Furthermore, we found a significant difference in the expression of miRNA 221/222 between treated and untreated GD tissue.ConclusionsIn conclusion, we found an intermediate expression of specific miRNAs in thyroid tissue from patients with GD that fell between the expression levels found in normal thyroid glands and PTC, which suggests a possible influence of certain miRNAs on developing PTC in patients with GD.
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Yoruker EE, Terzioglu D, Teksoz S, Uslu FE, Gezer U, Dalay N. MicroRNA Expression Profiles in Papillary Thyroid Carcinoma, Benign Thyroid Nodules and Healthy Controls. J Cancer 2016; 7:803-9. [PMID: 27162538 PMCID: PMC4860796 DOI: 10.7150/jca.13898] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 03/13/2016] [Indexed: 11/05/2022] Open
Abstract
MicroRNAs (miRNAs) represent a class of short endogenous non-coding RNAs that negatively regulate gene expression at the post-transcriptional level in many biological processes, including proliferation, differentiation, stress response and apoptosis. In this study we analyzed a set of seven miRNA molecules in sera of patients with papillary thyroid cancer, multinodular goiter and healthy controls to identify miRNA molecules that may have utility as markers for PTC. MiR-21 serum levels in the preoperative PTC and MG groups were significantly higher than the control group. Likewise, postoperative levels of miR-151-5p, miR-221 and miR-222 were significantly lower in patients with PTC. When serum miRNA levels were evaluated according to stage, postoperative levels of miR-151-5p and miR-222 were significantly lower in patients with advanced stages of the disease. The miRNA levels were also found associated with the size of the primary tumor. Our data imply that specific miRNA molecules which are differentially expressed in thyroid tumors may play role in the development of papillary thyroid carcinoma.
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Affiliation(s)
- Ebru Esin Yoruker
- 1. Oncology Institute, Department of Basic Oncology, Istanbul University, Istanbul, Turkey
| | - Duygu Terzioglu
- 2. Cerrahpasa Faculty of Medicine, Department of Biochemistry, Istanbul University, Istanbul, Turkey
| | - Serkan Teksoz
- 3. Cerrahpasa Faculty of Medicine, Department of Surgery, Istanbul University, Istanbul, Turkey
| | - Fatma Ezel Uslu
- 2. Cerrahpasa Faculty of Medicine, Department of Biochemistry, Istanbul University, Istanbul, Turkey
| | - Ugur Gezer
- 1. Oncology Institute, Department of Basic Oncology, Istanbul University, Istanbul, Turkey
| | - Nejat Dalay
- 1. Oncology Institute, Department of Basic Oncology, Istanbul University, Istanbul, Turkey
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Titov SE, Ivanov MK, Karpinskaya EV, Tsivlikova EV, Shevchenko SP, Veryaskina YA, Akhmerova LG, Poloz TL, Klimova OA, Gulyaeva LF, Zhimulev IF, Kolesnikov NN. miRNA profiling, detection of BRAF V600E mutation and RET-PTC1 translocation in patients from Novosibirsk oblast (Russia) with different types of thyroid tumors. BMC Cancer 2016; 16:201. [PMID: 26960768 PMCID: PMC4784369 DOI: 10.1186/s12885-016-2240-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 03/01/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The postoperative typing of thyroid lesions, which is instrumental in adequate patient treatment, is currently based on histologic examination. However, it depends on pathologist's qualification and can be difficult in some cases. Numerous studies have shown that molecular markers such as microRNAs and somatic mutations may be useful to assist in these cases, but no consensus exists on the set of markers that is optimal for that purpose. The aim of the study was to discriminate between different thyroid neoplasms by RT-PCR, using a limited set of microRNAs selected from literature. METHODS By RT-PCR we evaluated the relative levels of 15 microRNAs (miR-221, -222, -146b, -181b, -21, -187, -199b, -144, -192, -200a, -200b, -205, -141, -31, -375) and the presence of BRAF(V600E) mutation and RET-PTC1 translocation in surgically resected lesions from 208 patients from Novosibirsk oblast (Russia) with different types of thyroid neoplasms. Expression of each microRNA was normalized to adjacent non-tumor tissue. Three pieces of lesion tissue from each patient (39 goiters, 41 follicular adenomas, 16 follicular thyroid cancers, 108 papillary thyroid cancers, 4 medullary thyroid cancers) were analyzed independently to take into account method variation. RESULTS The diagnostic classifier based on profiling of 13 microRNAs was proposed, with total estimated accuracy varying from 82.7 to 99% for different nodule types. Relative expression of six microRNAs (miR-146b, -21, -221, -222, 375, -199b) appeared significantly different in BRAF(V600E)-positive samples (all classified as papillary thyroid carcinomas) compared to BRAF(V600E)-negative papillary carcinoma samples. CONCLUSIONS The results confirm practical feasibility of using molecular markers for typing of thyroid neoplasms and clarification of controversial cases.
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Affiliation(s)
- Sergei E Titov
- Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia. .,JSC "Vector-Best", Koltsovo, Russia.
| | | | - Elena V Karpinskaya
- Novosibirsk Municipal Budgetary Healthcare Institution "Municipal Clinical Hospital #1", Novosibirsk, Russia
| | | | - Sergei P Shevchenko
- Novosibirsk Municipal Budgetary Healthcare Institution "Municipal Clinical Hospital #1", Novosibirsk, Russia
| | - Yulia A Veryaskina
- Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia
| | - Larisa G Akhmerova
- Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia
| | - Tatiana L Poloz
- Non-governmental Healthcare Institution «Railroad Clinical Hospital on the Station Novosibirsk-Glavny", JSC Russian Railways, Novosibirsk, Russia
| | - Olesya A Klimova
- Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia.,JSC "Vector-Best", Koltsovo, Russia
| | | | - Igor F Zhimulev
- Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia
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Lima CR, Geraldo MV, Fuziwara CS, Kimura ET, Santos MF. MiRNA-146b-5p upregulates migration and invasion of different Papillary Thyroid Carcinoma cells. BMC Cancer 2016; 16:108. [PMID: 26883911 PMCID: PMC4754828 DOI: 10.1186/s12885-016-2146-z] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 02/08/2016] [Indexed: 01/17/2023] Open
Abstract
Background Tumor invasiveness is directly related to the ability of tumor cells to migrate and invade surrounding tissues, usually degrading extracellular matrix. Despite significant progress in the knowledge about migration and invasion, there is much more to elucidate about their regulatory mechanisms, especially in cancer cells. MicroRNAs (miRs) were recently described as important regulators of migration. Differential expression of miRs in cancer is frequently associated with progression, invasion and metastasis. In papillary thyroid carcinoma (PTC), miR-146b-5p is highly expressed and positively correlated to the degree of malignancy. Methods This study aimed to investigate the role of miR-146b-5p on the migratory and invasive behaviors of thyroid cells, using a non tumor rat thyroid follicular cell line (PCCl3) transfected with the miR-146b-5p genomic region, and two PTC cell lines (TPC-1 and BCPAP, bearing distinct oncogenic backgrounds), which express high levels of miR-146b-5p, after miR-146b inhibition by antagomiR and miR-146b overexpression by mimics-miR. Migration and invasion were studied by time-lapse and transwell assays (with and without Matrigel®). Gelatin degradation assays were also employed, as well as F-actin staining. Results Migration and invasion of PCCl3 were increased 2-3x after miR-146b-5p overexpression (10X) and large lamellipodia were evident in those cells. After miR-146b-5p inhibition, TPC-1 and BCPAP migration and invasion were significantly reduced, with cells showing several simultaneous processes and low polarity. Gelatin degradation was inhibited in TPC-1 cells after inhibition of miR-146b-5p, but was unaffected in BCPAP cells, which did not degrade gelatin. The inhibition of miR-146b-5p in PCCl3 also inhibited migration and invasion, and additional (exogenous) overexpression of this miR in TPC-1 and BCPAP cells increased migration and invasion, without effects on cell morphology or gelatin degradation. The overexpression of SMAD4 in BCPAP cells, a validated target of miR-146b-5p and key protein in the TGF-β signaling pathway, inhibited migration similarly to the effects observed with the antagomiR 146b-5p. Conclusions miR-146b-5p positively regulates migration and invasion of thyroid normal and tumor follicular cells (independently from their original mutation, either BRAF or RET/PTC), through a mechanism that involves the actin cytoskeleton but not an increased capacity of matrix degradation. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2146-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cilene Rebouças Lima
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes 1524, Prédio I, CEP 05508-000, São Paulo, SP, Brazil.
| | - Murilo Vieira Geraldo
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes 1524, Prédio I, CEP 05508-000, São Paulo, SP, Brazil.
| | - Cesar Seigi Fuziwara
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes 1524, Prédio I, CEP 05508-000, São Paulo, SP, Brazil.
| | - Edna Teruko Kimura
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes 1524, Prédio I, CEP 05508-000, São Paulo, SP, Brazil.
| | - Marinilce Fagundes Santos
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, Avenida Professor Lineu Prestes 1524, Prédio I, CEP 05508-000, São Paulo, SP, Brazil.
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Wylie D, Beaudenon-Huibregtse S, Haynes BC, Giordano TJ, Labourier E. Molecular classification of thyroid lesions by combined testing for miRNA gene expression and somatic gene alterations. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2016; 2:93-103. [PMID: 27499919 PMCID: PMC4907059 DOI: 10.1002/cjp2.38] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 12/31/2015] [Indexed: 12/20/2022]
Abstract
Multiple molecular markers contribute to the pathogenesis of thyroid cancer and can provide valuable information to improve disease diagnosis and patient management. We performed a comprehensive evaluation of miRNA gene expression in diverse thyroid lesions (n = 534) and developed predictive models for the classification of thyroid nodules, alone or in combination with genotyping. Expression profiling by reverse transcription-quantitative polymerase chain reaction in surgical specimens (n = 257) identified specific miRNAs differentially expressed in 17 histopathological categories. Eight supervised machine learning algorithms were trained to discriminate benign from malignant lesions and evaluated for accuracy and robustness. The selected models showed invariant area under the receiver operating characteristic curve (AUC) in cross-validation (0.89), optimal AUC (0.94) in an independent set of preoperative thyroid nodule aspirates (n = 235), and classified 92% of benign lesions as low risk/negative and 92% of malignant lesions as high risk/positive. Surgical and preoperative specimens were further tested for the presence of 17 validated oncogenic gene alterations in the BRAF, RAS, RET or PAX8 genes. The miRNA-based classifiers complemented and significantly improved the diagnostic performance of the 17-mutation panel (p < 0.001 for McNemar's tests). In a subset of resected tissues (n = 54) and in an independent set of thyroid nodules with indeterminate cytology (n = 42), the optimized ThyraMIR Thyroid miRNA Classifier increased diagnostic sensitivity by 30-39% and correctly classified 100% of benign nodules negative by the 17-mutation panel. In contrast, testing with broad targeted next-generation sequencing panels decreased diagnostic specificity by detecting additional mutations of unknown clinical significance in 19-39% of benign lesions. Our results demonstrate that, independent of mutational status, miRNA expression profiles are strongly associated with altered molecular pathways underlying thyroid tumorigenesis. Combined testing for miRNA gene expression and well-established somatic gene alterations is a novel diagnostic strategy that can improve the preoperative diagnosis and surgical management of patients with indeterminate thyroid nodules.
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Affiliation(s)
| | | | | | - Thomas J Giordano
- Department of Pathology University of Michigan Health System Ann Arbor Michigan USA
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Mutalib NSA, Yusof AM, Mokhtar NM, Harun R, Muhammad R, Jamal R. MicroRNAs and Lymph Node Metastasis in Papillary Thyroid Cancers. Asian Pac J Cancer Prev 2016; 17:25-35. [DOI: 10.7314/apjcp.2016.17.1.25] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Stokowy T, Gawel D, Wojtas B. Differences in miRNA and mRNA Profile of Papillary Thyroid Cancer Variants. Int J Endocrinol 2016; 2016:1427042. [PMID: 27656207 PMCID: PMC5021476 DOI: 10.1155/2016/1427042] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/21/2016] [Accepted: 08/07/2016] [Indexed: 01/01/2023] Open
Abstract
Papillary thyroid cancer (PTC) can be divided into classical variant of PTC (cPTC), follicular variant of PTC (fvPTC), and tall cell variant (tcPTC). These variants differ in their histopathology and cytology; however, their molecular background is not clearly understood. Our results shed some new light on papillary thyroid cancer biology as new direct miRNA-gene regulations are discovered. The Cancer Genome Atlas (TCGA) 466 thyroid cancer samples were studied in parallel datasets to discover potential miRNA-mRNA regulations. Additionally, miRNAs and genes differentiating PTC variants (cPTC, fvPTC, and tcPTC) were indicated. Putative miRNA regulatory pairs were discovered: hsa-miR-146b-5p with PHKB and IRAK1, hsa-miR-874-3p with ITGB4 characteristic for classic PTC samples, and hsa-miR-152-3p with TGFA characteristic for follicular variant PTC samples. MiRNA-mRNA regulations discovery opens a new perspective in understanding of PTC biology. Furthermore, our successful pipeline of miRNA-mRNA regulatory pathways discovery could serve as a universal tool to find new miRNA-mRNA regulations, also in different datasets.
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Affiliation(s)
- Tomasz Stokowy
- Department of Clinical Science, University of Bergen, Postboks 7804, 5020 Bergen, Norway
- *Tomasz Stokowy:
| | - Danuta Gawel
- Department of Automatic Control, Akademicka 16, 44-100 Gliwice, Poland
| | - Bartosz Wojtas
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland
- Laboratory of Molecular Neurobiology, Neurobiology Center, Nencki Institute of Experimental Biology, Warsaw, Poland
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Li WF, Wang G, Zhao ZB, Liu CA. High expression of metadherin correlates with malignant pathological features and poor prognostic significance in papillary thyroid carcinoma. Clin Endocrinol (Oxf) 2015; 83:572-80. [PMID: 25418110 DOI: 10.1111/cen.12683] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/27/2014] [Accepted: 11/19/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Metadherin (MTDH) protein, also called astrocyte elevated gene-1 (AEG-1) is over expressed in a variety of malignant tumours, and is closely related to tumour invasion and the poor prognosis. OBJECTIVE This study tries to explore the clinical pathological significance of MTDH expression in a large cohort of patients with PTC. DESIGN AND PATIENTS Immunohistochemistry was used to detect MTDH expression in 156 cases of PTC, 6 cases of anaplastic thyroid carcinoma (ATC), 10 cases of multinodular goitre (MNG) and 10 cases of thyroid adenoma tissues who received a thyroid operation between June 2003 and July 2008. MEASUREMENTS Clinical pathological data of 156 cases of PTC were analysed according to MTDH expression. The Kaplan-Meier method was used to plot survival curves and log-rank test to compare the postoperative survival results. The prognostic meaning of MTDH expression in PTC was evaluated by Cox regression analysis. RESULTS The positive expression rates of MTDH in PTC and ATC tissues were 37·2% (58/156) and 50% (3/6), respectively, and MTDH positive expression rates were both 10% (1/10) in MNG and thyroid adenoma tissues. High MTDH expression in PTC was associated with larger tumour size (P = 0·030), high rates of lymph node (P = 0·041) and distant metastasis (P = 0·028), but no relation with the patient age, gender, tumour multicenter, extrathyroid invasion and tumour grade. High MTDH expression was associated with recurrence-free survival (RFS) and disease-specific survival rate (DSS) (P = 0·014, P = 0·001, respectively). Cox regression analysis showed that high MTDH expression was independent prognostic indicators for RFS and DSS in patients with PTC (P = 0·023 and P = 0·035, respectively). CONCLUSION High MTDH expression in PTC might play an important role in tumour growth and metastasis, and targeting MTDH treatment might have potential therapeutic value for patients with PTC.
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Affiliation(s)
- Wen-Fang Li
- Department of General Surgery, the Second Hospital Affiliated to Chongqing Medical University, Chongqing, China
| | - Gen Wang
- Department of General Surgery, Taihe Hospital Affiliated to Hubei Medical University, Shiyan City, China
| | - Zong-Bin Zhao
- Department of General Surgery, Taihe Hospital Affiliated to Hubei Medical University, Shiyan City, China
| | - Chang-An Liu
- Department of General Surgery, the Second Hospital Affiliated to Chongqing Medical University, Chongqing, China
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Labourier E, Shifrin A, Busseniers AE, Lupo MA, Manganelli ML, Andruss B, Wylie D, Beaudenon-Huibregtse S. Molecular Testing for miRNA, mRNA, and DNA on Fine-Needle Aspiration Improves the Preoperative Diagnosis of Thyroid Nodules With Indeterminate Cytology. J Clin Endocrinol Metab 2015; 100:2743-50. [PMID: 25965083 PMCID: PMC4490308 DOI: 10.1210/jc.2015-1158] [Citation(s) in RCA: 208] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
CONTEXT Molecular testing for oncogenic mutations or gene expression in fine-needle aspirations (FNAs) from thyroid nodules with indeterminate cytology identifies a subset of benign or malignant lesions with high predictive value. OBJECTIVE This study aimed to evaluate a novel diagnostic algorithm combining mutation detection and miRNA expression to improve the diagnostic yield of molecular cytology. SETTING Surgical specimens and preoperative FNAs (n = 638) were tested for 17 validated gene alterations using the miRInform Thyroid test and with a 10-miRNA gene expression classifier generating positive (malignant) or negative (benign) results. DESIGN Cross-sectional sampling of thyroid nodules with atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) or follicular neoplasm/suspicious for a follicular neoplasm (FN/SFN) cytology (n = 109) was conducted at 12 endocrinology centers across the United States. Qualitative molecular results were compared with surgical histopathology to determine diagnostic performance and model clinical effect. RESULTS Mutations were detected in 69% of nodules with malignant outcome. Among mutation-negative specimens, miRNA testing correctly identified 64% of malignant cases and 98% of benign cases. The diagnostic sensitivity and specificity of the combined algorithm was 89% (95% confidence interval [CI], 73-97%) and 85% (95% CI, 75-92%), respectively. At 32% cancer prevalence, 61% of the molecular results were benign with a negative predictive value of 94% (95% CI, 85-98%). Independently of variations in cancer prevalence, the test increased the yield of true benign results by 65% relative to mRNA-based gene expression classification and decreased the rate of avoidable diagnostic surgeries by 69%. CONCLUSIONS Multiplatform testing for DNA, mRNA, and miRNA can accurately classify benign and malignant thyroid nodules, increase the diagnostic yield of molecular cytology, and further improve the preoperative risk-based management of benign nodules with AUS/FLUS or FN/SFN cytology.
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Affiliation(s)
- Emmanuel Labourier
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Alexander Shifrin
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Anne E Busseniers
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Mark A Lupo
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Monique L Manganelli
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Bernard Andruss
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Dennis Wylie
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
| | - Sylvie Beaudenon-Huibregtse
- Asuragen, Inc (E.L., B.A., D.W., S.B.H.), Austin, Texas 78744; Jersey Shore University Medical Center (A.S.), Center for Thyroid, Parathyroid and Adrenal Diseases, Neptune, New Jersey 07753; Metropolitan Fine Needle Aspiration Service (A.E.B.), Washington, District of Columbia 20037 and Bethesda, Maryland 20814; Thyroid & Endocrine Center of Florida (M.A.L.), Sarasota, Florida 34231; and (M.L.M.) San Diego, California 92103
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Comparison of the clinicopathological behavior of the follicular variant of papillary thyroid carcinoma and classical papillary thyroid carcinoma: A systematic review and meta-analysis. Mol Clin Oncol 2015; 3:753-764. [PMID: 26171175 DOI: 10.3892/mco.2015.540] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 02/25/2015] [Indexed: 02/05/2023] Open
Abstract
The follicular variant of papillary thyroid carcinoma (FV-PTC) is the second most common type of papillary thyroid carcinoma (PTC), and it has been increasingly diagnosed in recent years. However, whether FV-PTC behaves differently from classical PTC (C-PTC) remains controversial. To address this controversy, a meta-analysis was performed to determine the potential differences between FV-PTC and C-PTC in their clinicopathological behavior. The relevant published studies between January 1, 2003 and August 31, 2014 were reviewed according to the defined selection criteria using the PubMed database. Review Manager was used to calculate the pooled odds ratio (OR) or the mean difference (MD) with a 95% confidence interval (CI), using a random- or fixed-effect model for all analyses. In total, 112 studies were identified and examined; finally, only 36 studies met the inclusion criteria. In the 36 studies, compared to the clinicopathological behavior of patients with C-PTC, patients with FV-PTC had the following parameters: Similar mean age and similar prevalence of gender, tumor size ≥10 mm, multifocality, capsular invasion, vascular invasion, lymphocytic and/or Hashimoto's thyroiditis, and clinical stage; a larger mean tumor size and higher prevalence of age ≥45 years; and lower prevalence of extrathyroidal extensions, lymph node metastases, BRAF mutation and recurrence. The meta-analysis suggested that patients with FV-PTC have a more favorable clinicopathological behavior and improved prognosis compared to patients with C-PTC. Thus, patients with FV-PTC and C-PTC may be managed differently, and the two types of PTC should be clearly distinguished in future retrospective or prospective studies.
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Stokowy T, Wojtaś B, Krajewska J, Stobiecka E, Dralle H, Musholt T, Hauptmann S, Lange D, Hegedüs L, Jarząb B, Krohn K, Paschke R, Eszlinger M. A two miRNA classifier differentiates follicular thyroid carcinomas from follicular thyroid adenomas. Mol Cell Endocrinol 2015; 399:43-9. [PMID: 25258301 DOI: 10.1016/j.mce.2014.09.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 08/15/2014] [Accepted: 09/17/2014] [Indexed: 11/16/2022]
Abstract
The inherent diagnostic limitations of thyroid fine needle aspiration (FNA), especially in the "indeterminate" category, can be partially overcome by molecular analyses. We aimed at the identification of miRNAs that could be used to improve the discrimination of indeterminate FNAs. miRNA expression profiling was performed for 17 follicular carcinomas (FTCs) and 8 follicular adenomas (FAs). The microarray results underwent cross-comparison using three additional microarray data sets. Candidate miRNAs were validated by qPCR in an independent set of 32 FTCs and 46 FAs. Sixty-eight differentially expressed miRNAs were identified. Thirteen miRNAs could be confirmed by cross comparison. A two-miRNA-classifier was established improving the diagnostic applicability and resulted in a sensitivity of 82% and a specificity of 49%. We present a classifier that has the potential to be successfully evaluated in cytology material for its capability to discriminate (mutation negative) indeterminate cytologies and thereby improving the pre-surgical diagnostics of thyroid nodules.
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Affiliation(s)
- Tomasz Stokowy
- Institute of Automatic Control, Silesian University of Technology, ul.Akademicka 16, 44-100 Gliwice, Poland; Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland; Department of Clinical Science, University of Bergen, Postboks 7800, NO-5020 Bergen, Norway
| | - Bartosz Wojtaś
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland; Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, Pasteura 3, Warsaw, Poland
| | - Jolanta Krajewska
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Ewa Stobiecka
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Henning Dralle
- Department of General, Visceral and Vascular Surgery, University of Halle-Wittenberg, Halle (Saale), Germany
| | - Thomas Musholt
- Department of General, Visceral, and Transplantation Surgery, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Steffen Hauptmann
- Department of Pathology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Dariusz Lange
- Tumor Pathology Department, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - László Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Barbara Jarząb
- Department of Nuclear Medicine and Endocrine Oncology, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch Wybrzeze AK 15, 44-101 Gliwice, Poland
| | - Knut Krohn
- IZKF Leipzig, University of Leipzig, Liebigstr.21, D-04103 Leipzig, Germany
| | - Ralf Paschke
- Division of Endocrinology and Nephrology, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany.
| | - Markus Eszlinger
- Division of Endocrinology and Nephrology, University of Leipzig, Liebigstr. 21, D-04103 Leipzig, Germany
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Mairinger FD, Ting S, Werner R, Walter RFH, Hager T, Vollbrecht C, Christoph D, Worm K, Mairinger T, Sheu-Grabellus SY, Theegarten D, Schmid KW, Wohlschlaeger J. Different micro-RNA expression profiles distinguish subtypes of neuroendocrine tumors of the lung: results of a profiling study. Mod Pathol 2014; 27:1632-40. [PMID: 24875640 DOI: 10.1038/modpathol.2014.74] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 02/12/2014] [Indexed: 12/30/2022]
Abstract
MicroRNAs (miRNAs) are a class of small (∼22 nucleotides), non-coding, highly conserved single-stranded RNAs with posttranscriptional regulatory features, including the regulation of cell proliferation, differentiation, survival, and apoptosis. They are deregulated in a broad variety of tumors showing characteristic expression patterns and can, thus, be used as a diagnostic tool. In contrast to non-small cell carcinoma of the lung neuroendocrine lung tumors, encompassing typical and atypical carcinoids, small cell lung cancer and large cell neuroendocrine lung cancer, no data about deregulation of tumor entity-specific miRNAs are available to date. miRNA expression differences might give useful information about the biological characteristics of these tumors, as well as serve as helpful markers.In 12 pulmonary neuroendocrine tumors classified as either typical carcinoid, atypical, large cell neuroendocrine or small cell lung cancer, screening for 763 miRNAs known to be involved in pulmonary cancerogenesis was conducted by performing 384-well TaqMan low-density array real-time qPCR. In the entire cohort, 44 miRNAs were identified, which showed a significantly different miRNA expression. For 12 miRNAs, the difference was highly significant (P<0.01). Eight miRNAs showed a negative (miR-22, miR-29a, miR-29b, miR-29c, miR-367*; miR-504, miR-513C, miR-1200) and four miRNAs a positive (miR-18a, miR-15b*, miR-335*, miR-1201) correlation to the grade of tumor biology. The miRNAs let-7d; miR-19; miR-576-5p; miR-340*; miR-1286 are significantly associated with survival. Members of the miR-29 family seem to be extremely important in this group of tumors. We found a number of miRNAs, which showed a highly significant deregulation in pulmonary neuroendocrine tumors. Moreover, some of these deregulated miRNAs seem to allow discrimination of the various subtypes of pulmonary neuroendocrine tumors. Thus, the analysis of specific sets of miRNAs can be proposed as diagnostic and/or predictive markers in this group of neoplasias.
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Affiliation(s)
- Fabian Dominik Mairinger
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Saskia Ting
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Robert Werner
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Robert Fred Henry Walter
- 1] Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany [2] Department of interventional Pneumology, Ruhrlandklinik, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Thomas Hager
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Daniel Christoph
- Department of Medical Oncology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Karl Worm
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Thomas Mairinger
- Department of Pathology, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Sien-Yi Sheu-Grabellus
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Dirk Theegarten
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Kurt Werner Schmid
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Jeremias Wohlschlaeger
- Institute of Pathology and Neuropathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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Diagnostic value of microRNAs in discriminating malignant thyroid nodules from benign ones on fine-needle aspiration samples. Tumour Biol 2014; 35:9343-53. [DOI: 10.1007/s13277-014-2209-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 06/06/2014] [Indexed: 01/23/2023] Open
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50
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Dettmer MS, Perren A, Moch H, Komminoth P, Nikiforov YE, Nikiforova MN. MicroRNA profile of poorly differentiated thyroid carcinomas: new diagnostic and prognostic insights. J Mol Endocrinol 2014; 52:181-9. [PMID: 24443580 PMCID: PMC4010646 DOI: 10.1530/jme-13-0266] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The diagnosis of conventional and oncocytic poorly differentiated (oPD) thyroid carcinomas is difficult. The aim of this study is to characterise their largely unknown miRNA expression profile and to compare it with well-differentiated thyroid tumours, as well as to identify miRNAs which could potentially serve as diagnostic and prognostic markers. A total of 14 poorly differentiated (PD), 13 oPD, 72 well-differentiated thyroid carcinomas and eight normal thyroid specimens were studied for the expression of 768 miRNAs using PCR-Microarrays. MiRNA expression was different between PD and oPD thyroid carcinomas, demonstrating individual clusters on the clustering analysis. Both tumour types showed upregulation of miR-125a-5p, -15a-3p, -182, -183-3p, -222, -222-5p, and downregulation of miR-130b, -139-5p, -150, -193a-5p, -219-5p, -23b, -451, -455-3p and of miR-886-3p as compared with normal thyroid tissue. In addition, the oPD thyroid carcinomas demonstrated upregulation of miR-221 and miR-885-5p. The difference in expression was also observed between miRNA expression in PD and well-differentiated tumours. The CHAID algorithm allowed the separation of PD from well-differentiated thyroid carcinomas with 73-79% accuracy using miR-23b and miR-150 as a separator. Kaplan-Meier and multivariate analysis showed a significant association with tumour relapses (for miR-23b) and with tumour-specific death (for miR-150) in PD and oPD thyroid carcinomas. MiRNA expression is different in conventional and oPD thyroid carcinomas in comparison with well-differentiated thyroid cancers and can be used for discrimination between these tumour types. The newly identified deregulated miRNAs (miR-150, miR-23b) bear the potential to be used in a clinical setting, delivering prognostic and diagnostic informations.
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Affiliation(s)
- Matthias S. Dettmer
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
- Institute of Pathology, University of Bern, 3010 Bern, Switzerland
- Corresponding author (reprint request): Dr. Matthias S. Dettmer, University of Bern, Institute of Pathology, Murtenstrasse 31, CH – 3010 Bern, Tel.: +41 31 632 8798, Fax: +41 31 632 3211, ,
| | - Aurel Perren
- Institute of Pathology, University of Bern, 3010 Bern, Switzerland
| | - Holger Moch
- Institute of Surgical Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - Paul Komminoth
- Institute of Surgical Pathology, Triemlispital Zurich, 8063 Zurich, Switzerland
| | - Yuri E. Nikiforov
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Marina N. Nikiforova
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
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