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Miller CLW, Warner JL, Winston F. Insights into Spt6: a histone chaperone that functions in transcription, DNA replication, and genome stability. Trends Genet 2023; 39:858-872. [PMID: 37481442 PMCID: PMC10592469 DOI: 10.1016/j.tig.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/24/2023]
Abstract
Transcription elongation requires elaborate coordination between the transcriptional machinery and chromatin regulatory factors to successfully produce RNA while preserving the epigenetic landscape. Recent structural and genomic studies have highlighted that suppressor of Ty 6 (Spt6), a conserved histone chaperone and transcription elongation factor, sits at the crux of the transcription elongation process. Other recent studies have revealed that Spt6 also promotes DNA replication and genome integrity. Here, we review recent studies of Spt6 that have provided new insights into the mechanisms by which Spt6 controls transcription and have revealed the breadth of Spt6 functions in eukaryotic cells.
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Affiliation(s)
- Catherine L W Miller
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Laboratory of Genome Maintenance, Rockefeller University, New York, NY 10065, USA
| | - James L Warner
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Fred Winston
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
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2
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Xu B. Molecular alterations of follicular cell-derived thyroid neoplasms. DIAGNOSTIC HISTOPATHOLOGY 2023. [DOI: 10.1016/j.mpdhp.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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McMurtry V, Canberk S, Deftereos G. Molecular testing in fine-needle aspiration of thyroid nodules. Diagn Cytopathol 2023; 51:36-50. [PMID: 36480743 DOI: 10.1002/dc.25035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Thyroid nodules are commonly faced by clinicians as palpable nodules or incidentally identified on imaging. Nodules that are found to be suspicious by imaging can be biopsied by fine needle aspiration, which can yield material for molecular testing to refine the diagnosis. METHODS The current literature concerning molecular testing in thyroid nodules including available commercial assays was reviewed and summarized. RESULTS/CONCLUSIONS Commonly encountered alterations include mutations in RAS, BRAF, TERT promoter, PTEN, and DICER1 as well as fusions of RET, ALK, PAX8-PPARγ, and NTRK. This article provides a summary of these molecular alterations, commercially available molecular assays, and general considerations for thyroid epithelial malignancies and benign thyroid nodules.
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Affiliation(s)
- Valarie McMurtry
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA.,ARUP Institute for Experimental Pathology, Salt Lake City, Utah, USA
| | - Sule Canberk
- Instituto de Investigação e Inovação em Saúde (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto, Porto, Portugal
| | - Georgios Deftereos
- Department of Pathology, University of Utah, Salt Lake City, Utah, USA.,ARUP Institute for Experimental Pathology, Salt Lake City, Utah, USA
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4
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Vielh P, Balogh Z, Suciu V, Richon C, Job B, Meurice G, Valent A, Lacroix L, Marty V, Motte N, Dessen P, Caillou B, Ghuzlan AA, Bidart JM, Lazar V, Hofman P, Scoazec JY, El-Naggar AK, Schlumberger M. DNA FISH Diagnostic Assay on Cytological Samples of Thyroid Follicular Neoplasms. Cancers (Basel) 2020; 12:cancers12092529. [PMID: 32899953 PMCID: PMC7564487 DOI: 10.3390/cancers12092529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/30/2020] [Accepted: 09/02/2020] [Indexed: 12/31/2022] Open
Abstract
Simple Summary Cytopathology cannot distinguish benign from malignant follicular lesions in 20–30% of cases. These indeterminate cases includes the so-called follicular neoplasms (FNs) according to The Bethesda System for Reporting Thyroid Cytopathology. Frozen samples from 66 classic follicular adenomas (cFAs) and carcinomas (cFTCs) studied by array-comparative genomic hybridization identified three specific alterations of cFTCs (losses of 1p36.33-35.1 and 22q13.2-13.31, and gain of whole chromosome X) confirmed by fluorescent in situ hybridization (FISH) in a second independent series of 60 touch preparations from frozen samples of cFAs and cFTCs. In a third independent set of 27 cases of already stained pre-operative fine-needle aspiration cytology samples diagnosed as FNs and histologically verified, FISH analysis using these three markers identified half of cFTCs. Specificity of our assay for identifying cFTCs is higher than 98% which might be comparable with BRAF600E testing in cases of suspicion of classic papillary thyroid carcinomas. Abstract Although fine-needle aspiration cytology (FNAC) is helpful in determining whether thyroid nodules are benign or malignant, this distinction remains a cytological challenge in follicular neoplasms. Identification of genomic alterations in cytological specimens with direct and routine techniques would therefore have great clinical value. A series of 153 cases consisting of 72 and 81 histopathologically confirmed classic follicular adenomas (cFAs) and classic follicular thyroid carcinomas (cFTCs), respectively, was studied by means of different molecular techniques in three different cohorts of patients (pts). In the first cohort (training set) of 66 pts, three specific alterations characterized by array comparative genomic hybridization (aCGH) were exclusively found in half of cFTCs. These structural abnormalities corresponded to losses of 1p36.33-35.1 and 22q13.2-13.31, and gain of whole chromosome X. The second independent cohort (validation set) of 60 pts confirmed these data on touch preparations of frozen follicular neoplasms by triple DNA fluorescent in situ hybridization using selected commercially available probes. The third cohort, consisting of 27 archived cytological samples from an equal number of pts that had been obtained for preoperative FNAC and morphologically classified as and histologically verified to be follicular neoplasms, confirmed our previous findings and showed the feasibility of the DNA FISH (DNA fluorescent in situ hybridization) assay. All together, these data suggest that our triple DNA FISH diagnostic assay may detect 50% of cFTCs with a specificity higher than 98% and be useful as a low-cost adjunct to cytomorphology to help further classify follicular neoplasms on already routinely stained cytological specimens.
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Affiliation(s)
- Philippe Vielh
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
- Correspondence: or
| | - Zsofia Balogh
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Voichita Suciu
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Catherine Richon
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Bastien Job
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Guillaume Meurice
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Alexander Valent
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Ludovic Lacroix
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Virginie Marty
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Nelly Motte
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Philippe Dessen
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Bernard Caillou
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Abir Al Ghuzlan
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Jean-Michel Bidart
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Vladimir Lazar
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Paul Hofman
- Laboratory of Clinical and Experimental Pathology and Biobank, Pasteur Hospital, 06002 Nice, France;
| | - Jean-Yves Scoazec
- Department of Medical Biology and Pathology, Gustave Roussy, Université Paris-Saclay and Experimental and Translational Pathology Platform, CNRS UMS3655-INSERM US23 AMMICA, 94805 Villejuif, France; (Z.B.); (V.S.); (C.R.); (B.J.); (G.M.); (A.V.); (L.L.); (V.M.); (N.M.); (P.D.); (B.C.); (A.A.G.); (J.-M.B.); (V.L.); (J.-Y.S.)
| | - Adel K. El-Naggar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Martin Schlumberger
- Department of Endocrinology, Gustave Roussy, Université Paris-Saclay, 94805 Villejuif, France;
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Abstract
Significant molecular advances have been undertaken for the past two decades in the field of thyroid follicular neoplasms, including a detailed genomic profile of papillary thyroid carcinoma (PTC) by The Cancer Genome Atlas (TCGA) project. These molecular discoveries led to a better understanding of the pathogenesis of thyroid neoplasms and resulted in reclassification of certain types of thyroid tumors. This review discusses how, 1) the molecular profiles of follicular-patterned lesions led to the reclassification of the follicular variant of PTC into non-invasive follicular thyroid neoplasm with papillary like nuclei, 2) the genotyping of Hürthle cell neoplasm provided the rationale to classify these tumors independently from follicular adenomas and carcinomas, and 3) BRAF and RAS molecular signatures have the potential of subclassifying PTC and poorly differentiated thyroid carcinoma into clinically relevant molecular subtypes.
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Identifying the clonal relationship model of multifocal papillary thyroid carcinoma by whole genome sequencing. Cancer Lett 2017; 396:110-116. [PMID: 28315434 DOI: 10.1016/j.canlet.2017.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 12/31/2022]
Abstract
PURPOSE To evaluate the application of whole genome sequencing (WGS) in determining the inter-foci clonal relationship of multifocal papillary thyroid carcinoma (mPTC). METHODS After reviewing PTC patient profiles, 8 cancer foci and germline control samples from 3 mPTC patients were analyzed by WGS. Single nucleotide variations (SNVs), copy number variation (CNV), structural variation and mutational signature were examined. RESULTS The multifocality rate of PTC was 35.1% and mPTC were shown to have larger primary tumor diameter, higher rate of lymph node metastasis and less number of accompanying non-cancerous lesions than single PTC in one or both gender groups. Out of the 8 cancer foci, 5 foci were identified as clonal-independent model with the rest 3 foci as clonal-derived model according to exonic SNVs spectrum. Non-exonic mutations provided compelling evidence at the genome-wide level for the classification. Specific CNV and 12 mutational signatures were also identified. CONCLUSIONS WGS could be an impressive tool in clonal relationship determination of PTC by providing a panoramic view of genome-wide somatic mutations. The substantial sequencing data provided additional information that could help studying the mechanism of carcinogenesis.
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7
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Passon N, Bregant E, Sponziello M, Dima M, Rosignolo F, Durante C, Celano M, Russo D, Filetti S, Damante G. Somatic amplifications and deletions in genome of papillary thyroid carcinomas. Endocrine 2015; 50:453-64. [PMID: 25863487 DOI: 10.1007/s12020-015-0592-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 03/30/2015] [Indexed: 10/23/2022]
Abstract
Somatic gene copy number variation contributes to tumor progression. Using comparative genomic hybridization (CGH) array, the presence of genomic imbalances was evaluated in a series of 27 papillary thyroid carcinomas (PTCs). To detect only somatic imbalances, for each sample, the reference DNA was from normal thyroid tissue of the same patient. The presence of the BRAF V600E mutation was also evaluated. Both amplifications and deletions showed an uneven distribution along the entire PTC cohort; amplifications were more frequent than deletions (mean values of 17.5 and 7.2, respectively). Number of aberration events was not even among samples, the majority of them occurring only in a small fraction of PTCs. Most frequent amplifications were detected at regions 2q35, 4q26, and 4q34.1, containing FN1, PDE5A, and GALNTL6 genes, respectively. Most frequent deletions occurred at regions 6q25.2, containing OPMR1 and IPCEF1 genes and 7q14.2, containing AOAH and ELMO1 genes. Amplification of FN1 and PDE5A genomic regions was confirmed by quantitative PCR. Frequency of amplifications and deletions was in relationship with clinical features and BRAF mutation status of tumor. In fact, according to the American Joint Committee on Cancer stage and American Thyroid Association (ATA) risk classification, amplifications are more frequent in higher risk samples, while deletions tend to prevail in the lower risk tumors. Analysis of single aberrations according to the ATA risk grouping shows that amplifications containing PDE5A, GALNTL6, DHRS3, and DOCK9 genes are significantly more frequent in the intermediate/high risk group than in the low risk group. Thus, our data would indicate that analysis of somatic genome aberrations by CGH array can be useful to identify additional prognostic variables.
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Affiliation(s)
- Nadia Passon
- Azienda Ospedaliero-Universitaria S. Maria della Misericordia, Udine, Italy
| | - Elisa Bregant
- Azienda Ospedaliero-Universitaria S. Maria della Misericordia, Udine, Italy
| | - Marialuisa Sponziello
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma "Sapienza", Rome, Italy
| | - Maria Dima
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma "Sapienza", Rome, Italy
| | - Francesca Rosignolo
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma "Sapienza", Rome, Italy
| | - Cosimo Durante
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma "Sapienza", Rome, Italy
| | - Marilena Celano
- Dipartimento di Scienze della Salute, Università di Catanzaro, Catanzaro, Italy
| | - Diego Russo
- Dipartimento di Scienze della Salute, Università di Catanzaro, Catanzaro, Italy
| | - Sebastiano Filetti
- Dipartimento di Medicina Interna e Specialità Mediche, Università di Roma "Sapienza", Rome, Italy
| | - Giuseppe Damante
- Azienda Ospedaliero-Universitaria S. Maria della Misericordia, Udine, Italy.
- Dipartimento di Scienze Mediche e Biologiche, Università di Udine, Piazzale Kolbe 4, 33100, Udine, Italy.
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8
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Ganly I, Ricarte Filho J, Eng S, Ghossein R, Morris LGT, Liang Y, Socci N, Kannan K, Mo Q, Fagin JA, Chan TA. Genomic dissection of Hurthle cell carcinoma reveals a unique class of thyroid malignancy. J Clin Endocrinol Metab 2013; 98:E962-72. [PMID: 23543667 PMCID: PMC5393465 DOI: 10.1210/jc.2012-3539] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CONTEXT Hurthle cell cancer (HCC) is an understudied cancer with poor prognosis. OBJECTIVE Our objective was to elucidate the genomic foundations of HCC. DESIGN AND SETTING We conducted a large-scale integrated analysis of mutations, gene expression profiles, and copy number alterations in HCC at a single tertiary-care cancer institution. METHODS Mass spectrometry-based genotyping was used to interrogate hot spot point mutations in the most common thyroid oncogenes: BRAF, RET, NRAS, HRAS, KRAS, PIK3CA, MAP2K1, and AKT1. In addition, common oncogenic fusions of RET and NTRK1 as well as PAX8/PPARγ and AKAP9-BRAF were also assessed by RT-PCR. Global copy number changes and gene expression profiles were determined in the same tumor set as the mutational analyses. RESULTS We report that the mutational, transcriptional, and copy number profiles of HCC were distinct from those of papillary thyroid cancer and follicular thyroid cancer, indicating HCC to be a unique type of thyroid malignancy. Unsupervised hierarchical clustering of gene expression showed the 3 groups of Hurthle tumors (Hurthle cell adenoma [HA], minimally invasive Hurthle cell carcinoma [HMIN], and widely invasive Hurthle cell carcinoma [HWIDE] clustered separately with a marked difference between HWIDE and HA. Global copy number analysis also indicated distinct subgroups of tumors that may arise as HWIDE and HMIN. Molecular pathways that differentiate HA from HWIDE included the PIK3CA-Akt-mTOR and Wnt/β-catenin pathways, potentially providing a rationale for new targets for this type of malignancy. CONCLUSIONS Our data provide evidence that HCC may be a unique thyroid cancer distinct from papillary and follicular thyroid cancer.
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Affiliation(s)
- Ian Ganly
- Memorial Sloan Kettering Cancer Center-Human Oncology and Pathogenesis Program, 1275 York Avenue, New York, New York 10065, USA
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Liu Y, Cope L, Sun W, Wang Y, Prasad N, Sangenario L, Talbot K, Somervell H, Westra W, Bishop J, Califano J, Zeiger M, Umbricht C. DNA copy number variations characterize benign and malignant thyroid tumors. J Clin Endocrinol Metab 2013; 98:E558-66. [PMID: 23345095 PMCID: PMC3590464 DOI: 10.1210/jc.2012-3113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CONTEXT Fine-needle aspiration (FNA) is the best diagnostic tool for preoperative evaluation of thyroid nodules but is often inconclusive as a guide for surgical management. OBJECTIVE Our hypothesis was that thyroid tumor subtypes may show characteristic DNA copy number variation (CNV) patterns, which may further improve the preoperative classification. DESIGN Our study cohorts included benign follicular adenomas (FAs), classic papillary thyroid carcinomas (PTCs), and follicular variant PTCs (FVPTCs), the three subtypes most commonly associated with inconclusive preoperative cytopathology. SETTING Tissue and FNA samples were obtained at an academic tertiary referral center. PATIENTS Cases were identified that underwent partial or complete thyroidectomy for malignant or indeterminate thyroid lesions between 2000 and 2008 and had adequate snap-frozen tissue. INTERVENTIONS Pairs of tumor tissue and matching normal thyroid tissue-derived DNA were compared using 550K single-nucleotide polymorphism arrays. MAIN OUTCOME MEASURE Statistically significant differences in CNV patterns between tumor subtypes were identified. RESULTS Segmental amplifications in chromosomes (Ch) 7 and 12 were more common in FAs than in PTCs or FVPTCs. Additionally, a subset of FAs and FVPTCs showed deletions in Ch22. We identified the 5 CNV-associated genes best at discriminating between FAs and PTCs/FVPTCs, which correctly classified 90% of cases. These 5 Ch12 genes were validated by quantitative genomic PCR and gene expression array analyses on the same patient cohort. The 5-gene signature was then successfully validated against an independent test cohort of benign and malignant tumor samples. Finally, we performed a feasibility study on matched FA-derived intraoperative FNA samples and were able to correctly identify FAs harboring the Ch12 amplification signature, whereas FAs without amplification showed a normal Ch12 signature. CONCLUSIONS Thyroid tumor subtypes possess characteristic genomic profiles that may further our understanding of structural genetic changes in thyroid tumor subtypes and may lead to the development of new diagnostic biomarkers in FNA samples.
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Affiliation(s)
- Yan Liu
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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Matsuse M, Sasaki K, Nishihara E, Minami S, Hayashida C, Kondo H, Suzuki K, Saenko V, Yoshiura KI, Mitsutake N, Yamashita S. Copy number alteration and uniparental disomy analysis categorizes Japanese papillary thyroid carcinomas into distinct groups. PLoS One 2012; 7:e36063. [PMID: 22558328 PMCID: PMC3340412 DOI: 10.1371/journal.pone.0036063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Accepted: 03/30/2012] [Indexed: 02/03/2023] Open
Abstract
The aim of the present study was to investigate chromosomal aberrations in sporadic Japanese papillary thyroid carcinomas (PTCs), concomitant with the analysis of oncogene mutational status. Twenty-five PTCs (11 with BRAF(V600E), 4 with RET/PTC1, and 10 without mutation in HRAS, KRAS, NRAS, BRAF, RET/PTC1, or RET/PTC3) were analyzed using Genome-Wide Human SNP Array 6.0 which allows us to detect copy number alteration (CNA) and uniparental disomy (UPD), also referred to as copy neutral loss of heterozygosity, in a single experiment. The Japanese PTCs showed relatively stable karyotypes. Seven cases (28%) showed CNA(s), and 6 (24%) showed UPD(s). Interestingly, CNA and UPD were rarely overlapped in the same tumor; the only one advanced case showed both CNA and UPD with a highly complex karyotype. Thirteen (52%) showed neither CNA nor UPD. Regarding CNA, deletions tended to be more frequent than amplifications. The most frequent and recurrent region was the deletion in chromosome 22; however, it was found in only 4 cases (16%). The degree of genomic instability did not depend on the oncogene status. However, in oncogene-positive cases (BRAF(V600E) and RET/PTC1), tumors with CNA/UPD were less frequent (5/15, 33%), whereas tumors with CNA/UPD were more frequent in oncogene-negative cases (7/10, 70%), suggesting that chromosomal aberrations may play a role in the development of PTC, especially in oncogene-negative tumors. These data suggest that Japanese PTCs may be classified into three distinct groups: CNA(+), UPD(+), and no chromosomal aberrations. BRAF(V600E) mutational status did not correlate with any parameters of chromosomal defects.
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Affiliation(s)
- Michiko Matsuse
- Department of Radiation Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Kensaku Sasaki
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Eijun Nishihara
- Department of Internal Medicine, Kuma Hospital, Kobe, Hyogo, Japan
| | - Shigeki Minami
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Chisa Hayashida
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Hisayoshi Kondo
- Division of Scientific Data Registry, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Keiji Suzuki
- Department of Radiation Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Vladimir Saenko
- Department of Health Risk Control, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Koh-ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Norisato Mitsutake
- Department of Radiation Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Nagasaki University Research Centre for Genomic Instability and Carcinogenesis (NRGIC), Nagasaki, Nagasaki, Japan
| | - Shunichi Yamashita
- Department of Radiation Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Health Risk Control, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
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11
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Chromosomal rearrangements in post-Chernobyl papillary thyroid carcinomas: evaluation by spectral karyotyping and automated interphase FISH. J Biomed Biotechnol 2011; 2011:693691. [PMID: 21436994 PMCID: PMC3062971 DOI: 10.1155/2011/693691] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 01/12/2011] [Indexed: 12/05/2022] Open
Abstract
Structural genomic rearrangements are frequent findings in human cancers. Therefore, papillary thyroid carcinomas (PTCs) were investigated for chromosomal aberrations and rearrangements of the RET proto-oncogene. For this purpose, primary cultures from 23 PTC have been established and metaphase preparations were analysed by spectral karyotyping (SKY). In addition, interphase cell preparations of the same cases were investigated by fluorescence in situ hybridisation (FISH) for the presence of RET/PTC rearrangements using RET-specific DNA probes. SKY analysis of PTC revealed structural aberrations of chromosome 11 and several numerical aberrations with frequent loss of chromosomes 20, 21, and 22. FISH analysis for RET/PTC rearrangements showed prevalence of this rearrangement in 72% (16 out of 22) of cases. However, only subpopulations of tumour cells exhibited this rearrangement indicating genetic heterogeneity. The comparison of visual and automated scoring of FISH signals revealed concordant results in 19 out of 22 cases (87%) indicating reliable scoring results using the optimised scoring parameter for RET/PTC with the automated Metafer4 system. It can be concluded from this study that genomic rearrangements are frequent in PTC and therefore important events in thyroid carcinogenesis.
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12
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Cytogenetic and molecular events in adenoma and well-differentiated thyroid follicular-cell neoplasia. ACTA ACUST UNITED AC 2010; 203:21-9. [PMID: 20951315 DOI: 10.1016/j.cancergencyto.2010.08.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Accepted: 08/28/2010] [Indexed: 11/23/2022]
Abstract
In spite of its simple organization, the thyroid gland can give rise to a wide spectrum of neoplasms, ranging from innocuous to highly malignant lesions. Approximately 94% of the malignancies is represented by well-differentiated thyroid carcinoma originating from follicular cells. These neoplasms are divided into two main categories, papillary thyroid carcinoma and follicular thyroid carcinoma. Despite their origin from the same type of cells, the two neoplasias show different biological behavior and a different set of genetic features, including specific cytogenetic patterns. Thyroid adenoma is the benign counterpart of follicular carcinoma. No benign counterpart of papillary carcinoma has yet been identified. The chromosomes of thyroid nodules have been investigated since 1965, and different cytogenetic subgroups have been recognized, some of which show structural chromosomal rearrangements. These structural changes lead to the formation of fusion genes RET-PTC, TRK(-T), and BRAF-AKAP9, which originate as a result of intrachromosomal or interchromosomal rearrangements and are found in papillary thyroid carcinoma. Fusion genes involving PPARγ are caused mainly by translocations and are characteristic of follicular neoplastic tissue. Radiation exposure and the particular architectural arrangement of chromatin regions in which the affected genes lie during interphase are thought to favor the formation of fusion genes in papillary thyroid carcinoma and possibly also in follicular thyroid carcinoma.
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13
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Zitzelsberger H, Thomas G, Unger K. Chromosomal aberrations in thyroid follicular-cell neoplasia: in the search of novel oncogenes and tumour suppressor genes. Mol Cell Endocrinol 2010; 321:57-66. [PMID: 19961897 DOI: 10.1016/j.mce.2009.11.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 11/10/2009] [Accepted: 11/27/2009] [Indexed: 10/20/2022]
Abstract
Thyroid cancer derived from the follicular cell is characterised by specific gene alterations that are closely linked to the various pathological types comprising papillary, follicular and anaplastic thyroid cancer. However, the correlation between molecular biology and pathology is not absolute, since about 30% of cases do not harbour the typical gene alterations. This situation, coupled with the demonstration of genetic heterogeneity in thyroid cancer, is a strong motivation for the search of novel gene alterations. Chromosomal aberrations are a good starting point to initiate this search and therefore the current knowledge on chromosomal alterations in thyroid follicular-cell neoplasia is reviewed in this article. An overview on molecular cytogenetic approaches for this strategy is also provided. The identification of novel genetic markers in thyroid cancer will be further improved by integrative approaches combining data from genomic and expression analyses with clinical data. This approach is powerful to identify genetic markers as well as new therapeutic targets in follicular-cell thyroid cancer.
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Affiliation(s)
- Horst Zitzelsberger
- Department of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Centre for Environmental Health GmbH, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany.
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14
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Stein L, Rothschild J, Luce J, Cowell JK, Thomas G, Bogdanova TI, Tronko MD, Hawthorn L. Copy number and gene expression alterations in radiation-induced papillary thyroid carcinoma from chernobyl pediatric patients. Thyroid 2010; 20:475-87. [PMID: 19725780 DOI: 10.1089/thy.2009.0008] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Following exposure to radiation during the Chernobyl fallout tragedy, papillary thyroid carcinoma (PTC) increased significantly in individuals who were children at the time of the accident. We have used two high-throughput, whole genome platforms to analyze radiation-induced PTCs from pediatric patients from the Chernobyl region. METHODS We performed comparative genomic hybridization using Affymetrix 50K Mapping arrays and gene expression profiling on 10 pediatric post-Chernobyl PTCs obtained from patients living in the region. We performed an overlay analysis of these two data sets. RESULTS Many regions of copy number alterations (CNAs) were detected including novel regions that had never been associated with PTCs. Increases in copy numbers were consistently found on chromosomes 1p, 5p, 9q, 12q, 13q, 16p, 21q, and 22q. Deletions were observed less frequently and were mapped to 1q, 6q, 9q, 10q, 13q, 14q, 21q, and 22q. Gene expression analysis revealed that most of the altered genes were also perturbed in sporadic adult PTC; however, 141 gene expression changes were found to be unique to the post-Chernobyl tumors. The genes with the highest increases in expression that were novel to the pediatric post-Chernobyl tumors were TESC, PDZRN4, TRAa/TRDa, GABBR2, and CA12. The genes showing the largest expression decreases included PAPSS2, PDLIM3, BEXI, ANK2, SORBS2, and PPARGCIA. An overlay analysis of the gene expression and CNA profiles was then performed. This analysis identified genes showing both CNAs and concurrent gene expression alterations. Many of these are commonly seen in sporadic PTC such as SERPINA, COL8A, and PDX, while others were unique to the radiation-induced profiles including CAMK2N1, AK1, DHRS3, and PDE9A. CONCLUSIONS This type of analysis allows an assessment of gene expression changes that are associated with a physical mechanism. These genes and chromosomal regions are potential markers for radiation-induced PTC.
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Affiliation(s)
- Leighton Stein
- Roswell Park Cancer Institute , Department of Cancer Genetics, Buffalo, New York, USA
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15
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Zhao Z, Wei Q, Zhao Y, Sun F, Jin X, Cui B, Ning G. Genetic copy number alterations and IL-13 expression differences in papillary thyroid cancers and benign nodules. Endocrine 2009; 36:155-60. [PMID: 19507063 DOI: 10.1007/s12020-009-9206-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 04/16/2009] [Accepted: 05/15/2009] [Indexed: 10/20/2022]
Abstract
Thyroid nodules were the extremely common endocrine tumors, in which papillary thyroid carcinomas (PTCs) were the most prevalent endocrine malignancy, representing 80-90% of all thyroid malignancies. It was still a dilemma to discriminate PTCs and benign thyroid nodules. With a new molecular genetics technology of Multiplex ligation-dependent probe amplification (MLPA), we investigated 13 PTC and 14 benign nodule tissue samples. The results showed that PTCs had more genetic copy number alteration than benign nodules (P < 0.001). Receiver operating characteristic (ROC) curve analysis suggested that genomic aberrations would provide a moderate accuracy method to discriminate PTCs and benign nodules. The gain of interleukin 13 (IL-13) gene obviously identified the great difference between PTCs and benign nodules. Immunohistochemistry also confirmed significantly higher IL-13 expression in the PTCs (P < 0.001). The current study showed that MLPA should be an effective method to diagnose PTCs and benign thyroid nodules, and also provided a clue to another relationship between IL-13 and PTCs.
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Affiliation(s)
- ZeFei Zhao
- Shanghai Institute of Endocrinology and Metabolism, Shanghai JiaoTong University School of Medicine, Shanghai, 200025, People's Republic of China
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16
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Abstract
There is much interest in the application of genome biology to the field of thyroid neoplasia, despite the relatively low mortality rate associated with thyroid cancer in general. The principal reason for this interest is that the field of thyroid neoplasia stands to benefit from the application of genomic information to address a variety of pathologic and clinical issues. In addition to practical patient care issues, there is an excellent opportunity of expand the basic understanding of thyroid carcinogenesis. In this article, the most relevant genomic work on thyroid tumors performed to date is reviewed along with some general comments about the potential impact of genomic biology on thyroid pathology and the management of patients with thyroid nodules and cancer.
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Affiliation(s)
- Thomas J Giordano
- Department of Pathology, 1150 West Medical Center Drive, MSRB-2, C570D, University of Michigan Health System, Ann Arbor, MI 48109, USA.
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17
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Unger K, Malisch E, Thomas G, Braselmann H, Walch A, Jackl G, Lewis P, Lengfelder E, Bogdanova T, Wienberg J, Zitzelsberger H. Array CGH demonstrates characteristic aberration signatures in human papillary thyroid carcinomas governed by RET/PTC. Oncogene 2008; 27:4592-602. [DOI: 10.1038/onc.2008.99] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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19
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Finn S, Smyth P, O'Regan E, Cahill S, Toner M, Timon C, Flavin R, O'Leary J, Sheils O. Low-level genomic instability is a feature of papillary thyroid carcinoma: an array comparative genomic hybridization study of laser capture microdissected papillary thyroid carcinoma tumors and clonal cell lines. Arch Pathol Lab Med 2007; 131:65-73. [PMID: 17227125 DOI: 10.5858/2007-131-65-lgiiaf] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2006] [Indexed: 11/06/2022]
Abstract
CONTEXT Previous chromosomal comparative genomic hybridization (CGH) studies of papillary thyroid carcinoma (PTC) have demonstrated a low prevalence of aberrations, with the majority of tumors showing no evidence of chromosomal instability. The technique of CGH can be optimized, however, using array CGH and laser capture microdissection to ensure pure cell populations for analysis. OBJECTIVE To assess PTC using array CGH applied to laser capture microdissected tumor cells and pure cell cultures. DESIGN Well-characterized PTC (known ret/PTC and BRAF mutation status), including samples from 5 tumors with classic morphology, 3 follicular variant tumors, and 3 clonal PTC cell lines, were analyzed. RESULTS Copy gain and loss occurred in all of the tumor cases and cell lines examined. The most common recurrent aberrations involved gains on chromosomes 1, 5, 7, 11, 15, 17, and 22, with recurrent deletions occurring on chromosomes 4, 18, and 19. Analysis of the data from the 8 tumor samples showed that amplifications of TP73 (1p36.33), SNRPN (15q12), and PDGFB (22q13.1) occurred exclusively in tumors with a wild type BRAF. CONCLUSIONS This study shows a higher prevalence of aberrations detected using array CGH allied to laser capture microdissection than previously described in the literature, and it appears that the combination of laser capture microdissection and arrayed clones optimizes studies utilizing CGH. Copy gain of PDGFB occurs in a subset of tumors showing no evidence of mutated BRAF or rearranged ret, suggesting that copy gain of PDGFB may underlie the increased expression of platelet-derived growth factor described recently in the literature.
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Affiliation(s)
- Stephen Finn
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA 02441, USA.
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20
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Ambroziak M, Pachucki J, Stachlewska-Nasfeter E, Nauman J, Nauman A. Disturbed expression of type 1 and type 2 iodothyronine deiodinase as well as titf1/nkx2-1 and pax-8 transcription factor genes in papillary thyroid cancer. Thyroid 2005; 15:1137-46. [PMID: 16279847 DOI: 10.1089/thy.2005.15.1137] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Type 1 and type 2 iodothyronine 5' deiodinases (D1 and D2, respectively) catalyze the conversion of thyroxine (T(4)) to triiodothyronine (T(3)). Similar to other genes crucial for T(3) generation, D1 and D2 expression might be disturbed in papillary thyroid cancer (PTC) possible as a result of impairments in thyroid transcription factors Titf1/Nkx2-1 and Pax-8. The aim of the study was to investigate changes in the expression of D1 and D2 in PTC compared to changes in the expression of Titf1/Nkx2-1 and Pax-8. Although D1 and D2 activities were decreased in tumor samples (PTC) compared to control C samples (tissues from a nontumorous part of the gland), the differences were not statistically significant. Contrary to that, their mRNA levels were significantly decreased in PTC samples compared to C samples (p = 0.017 and p = 0.012, respectively). Interestingly there was clear discrepancy between enzymatic activity and mRNA level of both deiodinases. There was a statistically significant correlation between D1 and Pax-8 (r = 0.464, p = 0.039), D2 and Pax-8 (r = 0.461, p = 0.041), D2 and Titf1/Nkx2-1 mRNA levels (r = 0.526, p = 0.017). Our results show that changes in D1 and D2 expression in PTC, including the discrepancy between deiodinases activity and mRNA level, might possibly related to impaired Titf1/Nkx2-1 and Pax-8 action.
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Affiliation(s)
- Michal Ambroziak
- Department of Biochemistry, Medical Centre of Postgraduate Education, Warsaw, Poland.
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21
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Richter H, Braselmann H, Hieber L, Thomas G, Bogdanova T, Tronko N, Zitzelsberger H. Chromosomal imbalances in post-chernobyl thyroid tumors. Thyroid 2004; 14:1061-4. [PMID: 15650359 DOI: 10.1089/thy.2004.14.1061] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Tissue samples from 60 post-Chernobyl childhood thyroid tumors have been investigated. We used comparative genomic hybridization (CGH) to detect chromosomal gains and losses within the tumor DNA. This is the first CGH study on childhood thyroid tumors. The post-Chernobyl tumors showed chromosomal imbalances in 30% of tumors. The most frequent DNA copy number changes in post-Chernobyl tumors involved chromosomes 2, 7q11.2-21, 13q21-22, 21 (DNA gains), and chromosomes 16p/q, 20q, 22q (DNA losses). Some of these specific alterations detected in post-Chernobyl thyroid tumors (deletions on chromosomes 16p/q and 22q) have previously been reported in thyroid tumors as associated with an aggressive biologic behavior and may therefore also account for the more aggressive phenotype of papillary thyroid carcinoma (PTC) found in post- Chernobyl tumors. Eighteen percent of post-Chernobyl PTC that exhibit RET rearrangements also showed chromosomal imbalances indicating that either additional genetic events are involved in this subset of tumors, or that intratumoral genetic heterogeneity exists in these tumors, suggesting a oligoclonal pattern to tumor development.
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Affiliation(s)
- Hedwig Richter
- Institute of Molecular Radiobiology, GSF-Forschungszentrum für Umwelt und Gesundheit GmbH, Neuherberg, Germany
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22
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Wreesmann VB, Ghossein RA, Hezel M, Banerjee D, Shaha AR, Tuttle RM, Shah JP, Rao PH, Singh B. Follicular variant of papillary thyroid carcinoma: genome-wide appraisal of a controversial entity. Genes Chromosomes Cancer 2004; 40:355-64. [PMID: 15188460 DOI: 10.1002/gcc.20049] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The majority of thyroid tumors are classified as papillary (papillary thyroid carcinomas; PTCs) or follicular neoplasms (follicular thyroid adenomas and carcinomas; FTA/FTC) based on nuclear features and the cellular growth pattern. However, classification of the follicular variant of papillary thyroid carcinoma (FVPTC) remains an issue of debate. These tumors contain a predominantly follicular growth pattern but display nuclear features and overall clinical behavior consistent with PTC. In this study, we used comparative genomic hybridization (CGH) to compare the global chromosomal aberrations in FVPTC to the PTC of classical variant (classical PTC) and FTA/FTC. In addition, we assessed the presence of peroxisome proliferator-activated receptor-gamma (PPARG) alteration, a genetic event specific to FTA/FTC, using Southern blot and immunohistochemistry analyses. In sharp contrast to the findings in classical PTC (4% of cases), CGH analysis demonstrated that both FVPTC (59% of cases) and FTA/FTC (36% of cases) were commonly characterized by aneuploidy (P = 0.0002). Moreover, the pattern of chromosomal aberrations (gains at chromosome arms 2q, 4q, 5q, 6q, 8q, and 13q and deletions at 1p, 9q, 16q, 17q, 19q, and 22q) in the follicular variant of PTC closely resembled that of FTA/FTC. Aberrations in PPARG were uniquely detected in FVPTC and FTA/FTC. Our findings suggest a stronger relationship between the FVPTC and FTA/FTC than previously appreciated and support further consideration of the current classification of thyroid neoplasms.
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Affiliation(s)
- Volkert B Wreesmann
- Laboratory of Epithelial Cancer Biology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA
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23
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Brunaud L, Zarnegar R, Wada N, Magrane G, Wong M, Duh QY, Davis O, Clark OH. Chromosomal aberrations by comparative genomic hybridization in thyroid tumors in patients with familial nonmedullary thyroid cancer. Thyroid 2003; 13:621-9. [PMID: 12964966 DOI: 10.1089/105072503322239952] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE Nonmedullary thyroid cancer is the most common form of thyroid cancer and its familial form (FNMTC) is increasingly recognized as a distinct clinical entity. However, the genetic background of FNMTC is still poorly understood and the causative gene(s) have not yet been identified. METHODS Because comparative genomic hybridization allows for screening of the entire tumor genome simultaneously for chromosomal gains and/or losses without prior knowledge of potential aberrations, we used this technique in thyroid normal and neoplastic samples from FNMTC patients (1) to analyze whether chromosomal aberrations would correlate with inheritance pattern, and/or clinicopathologic features and (2) to compare comparative genomic hybridization (CGH) findings in familial tumors with those already known in sporadic differentiated thyroid cancers. RESULTS No common germline or somatic chromosomal aberrations were observed in patients with FNMTC because the frequencies and most locations of chromosomal aberrations in familial tumors were also common in sporadic tumors. However, some somatic aberrations were only found in familial tumors (gains in 2q, 3q, 18p, and 19p). Common aberrations in familial tumors corresponded to several locations of candidate genes already reported for sporadic thyroid tumorigenesis. CONCLUSIONS Our findings suggest that chromosomal aberrations in thyroid tumors in patients with FNMTC are not related to inheritance pattern but rather to tumorigenesis.
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Affiliation(s)
- Laurent Brunaud
- Endocrine Surgical Oncology Fellow, University of California San Francisco UCSF/Mount Zion Medical Center, San Francisco, California 94143, USA
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24
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Wada N, Duh QY, Miura D, Brunaud L, Wong MG, Clark OH. Chromosomal aberrations by comparative genomic hybridization in hürthle cell thyroid carcinomas are associated with tumor recurrence. J Clin Endocrinol Metab 2002; 87:4595-601. [PMID: 12364440 DOI: 10.1210/jc.2002-020339] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Hürthle cell thyroid neoplasms are classified as variants of follicular neoplasms, but they have distinct clinicopathological features. Chromosomal aberrations by comparative genomic hybridization (CGH) are common in Hürthle cell neoplasms. However, there is currently only limited information concerning the relationship between the chromosomal aberrations by CGH and tumor behavior. We, therefore, investigated chromosomal aberrations in primary Hürthle cell neoplasms (13 carcinomas and 15 adenomas) using CGH and correlated the aberrations identified with tumor node metastasis (TNM) stage, tumor differentiation, capsular invasion, and tumor recurrence. Chromosomal aberrations were found in 62% (8 of 13) of carcinomas and 60% (9 of 15) of adenomas. Overall, common chromosomal gains were found on 5p (29%), 5q (36%), 7 (29%), 12p (14%), 12q (21%), 17p (29%), 17q (32%), 19p (32%), 19q (25%), 20p (21%), 20q (29%), and 22q (18%). Common chromosomal losses were found on 2q (18%) and 9q (18%). Thirty-eight percent (5 of 13) of carcinomas were TNM stage III, 31% (4 of 13) were moderately to poorly differentiated, and 46% (6 of 13) were intermediately to widely invasive. Recurrence occurred in 38% (5 of 13). Carcinomas that subsequently recurred had a greater number of chromosomal gains (9.0 vs. 1.3; <0.005) and had more frequent chromosomal gains on 12q, 19q, and 20p (<0.001), 5p, 7, 19p, and 20q (<0.005), and 12p (<0.01) than those that did not recur. Five of the eight (63%) patients with aberrations developed recurrence, whereas none of the five patients without aberrations developed recurrence. In conclusion, chromosomal gains by CGH on 5p, 7, 12p, 12q, 19p, 19q, 20p, and 20q in Hürthle cell carcinomas are associated with tumor recurrence. Such chromosomal aberrations may be predictive for recurrent disease in patients with Hürthle cell thyroid carcinoma.
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MESH Headings
- Adenoma/genetics
- Adenoma/pathology
- Adenoma, Oxyphilic/genetics
- Adenoma, Oxyphilic/pathology
- Adult
- Aged
- Aged, 80 and over
- Carcinoma/genetics
- Carcinoma/pathology
- Chromosome Aberrations
- Chromosomes, Human, Pair 12
- Chromosomes, Human, Pair 17
- Chromosomes, Human, Pair 19
- Chromosomes, Human, Pair 2
- Chromosomes, Human, Pair 20
- Chromosomes, Human, Pair 22
- Chromosomes, Human, Pair 5
- Chromosomes, Human, Pair 7
- Chromosomes, Human, Pair 9
- Female
- Humans
- Male
- Middle Aged
- Neoplasm Invasiveness
- Neoplasm Recurrence, Local
- Neoplasm Staging
- Nucleic Acid Hybridization
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/pathology
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Affiliation(s)
- Nobuyuki Wada
- Department of Surgery, University of California, San Francisco, San Francisco, California 94143, USA
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25
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Corso C, Ulucan H, Parry EM, Parry JM. Comparative analysis of two thyroid tumor cell lines by fluorescence in situ hybridization and comparative genomic hybridization. CANCER GENETICS AND CYTOGENETICS 2002; 137:108-18. [PMID: 12393281 DOI: 10.1016/s0165-4608(02)00562-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Tumors and tumor-derived cell lines are typically chromosomally complex and heterogeneous. These features complicate the description of their karyotype. As a first approach to the chromosomal characterization of the two near-triploid thyroid tumor cell lines, BCPAP and FTC133, the techniques of fluorescence in situ hybridization and comparative genomic hybridization were used and compared. Most of the results obtained by the two methods were in good agreement. The follicular-derived cell line FTC133 showed more extensive chromosome variation between cells than the papillary-derived cell line BCPAP. Both cell lines had significant gains in part or whole of chromosomes 1, 11, and 20 and losses in chromosomes 16, 21, and 22. BCPAP cells also had gains in chromosomes 4 and 5 and losses in chromosomes 7, 9, and 10; FTC133 cells had gains in chromosomes 6, 7, 8, 14, 15, and 19. Chromosomes 4 and 5 were the most stable in BCPAP cells; in the FTC133 cells, chromosomes 7 and 19 showed the greatest segregational stability. The results have been discussed in terms of possible karyotype evolution. Moreover, it has been possible to compare the sensitivity limits of the two techniques in the analysis of polyploid tumors.
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Affiliation(s)
- Chiara Corso
- Centre for Molecular Genetics and Toxicology, School of Biological Sciences, University of Wales-Swansea, Swansea SA2 8PP, Wales, UK
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26
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Bauer AJ, Cavalli LR, Rone JD, Francis GL, Burch HB, Tuttle RM, Ringel MD, Stratakis CA, Haddad BR. Evaluation of adult papillary thyroid carcinomas by comparative genomic hybridization and microsatellite instability analysis. CANCER GENETICS AND CYTOGENETICS 2002; 135:182-6. [PMID: 12127404 DOI: 10.1016/s0165-4608(01)00656-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To clarify the mechanism of tumorigenesis in papillary thyroid carcinoma (PTC) and ascertain whether genomic changes correlate with histologic features, we conducted a comprehensive molecular evaluation of PTC using comparative genomic hybridization (CGH) and microsatellite instability (MSI) analysis in a set of 17 histologically well-characterized PTC specimens. To our knowledge, this is the first study that evaluates chromosomal and nucleotide instability in the same PTC tumor specimens. Four of 15 samples (27%) had aberrations detected by CGH. All four had a partial or complete gain of chromosome 20, and 3 of 4 had a partial or complete loss of chromosome 13. No MSI was detected in any of the PTC samples (n=16), and all samples examined by immunohistochemistry (n=9) expressed the DNA repair enzymes hmlh1 and hmsh2. All PTC samples with abnormal CGH had vascular invasion or invasion of the thyroid capsule, and there was a significant correlation between the presence of chromosomal aberrations and capsular/vascular invasion (P=0.026). We conclude that although chromosomal and microsatellite instability are uncommon in PTC, tumors with chromosomal aberrations are more likely to be associated with invasion.
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Affiliation(s)
- Andrew J Bauer
- Department of Pediatrics, Walter Reed Army Medical Center, USA, Washington, DC, USA
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Struski S, Doco-Fenzy M, Cornillet-Lefebvre P. Compilation of published comparative genomic hybridization studies. CANCER GENETICS AND CYTOGENETICS 2002; 135:63-90. [PMID: 12072205 DOI: 10.1016/s0165-4608(01)00624-0] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The power of comparative genomic hybridization (CGH) has been clearly proven since the first paper appeared in 1992 as a tool to characterize chromosomal imbalances in neoplasias. This review summarizes the chromosomal imbalances detected by CGH in solid tumors and in hemopathies. In May of 2001, we took a census of 430 articles providing information on 11,984 cases of human solid tumors or hematologic malignancies. Comparative generic hybridization has detected a number of recurrent regions of amplification or deletion that allows for identification of new chromosomal loci (oncogenes, tumor suppressor genes, or other genes) involved in the development, progression, and clonal evolution of tumors. When CGH data from different studies are combined, a pattern of nonrandom genetic aberrations appears. As expected, some of these gains and losses are common to different types of pathologies, while others are more tumor-specific.
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Affiliation(s)
- Stéphanie Struski
- Laboratoire d'Hématologie, Hôpital Robert Debré-CHU Reims, Reims, France
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Abstract
Differentiated thyroid cancer is a rare disease and until recently was considered to be sporadic. However, increasing evidence has been found for a genetic basis of this disease. In approximately 5% of patients the differentiated thyroid cancer is dominantly inherited. Several families with different syndromes, of which differentiated thyroid cancer is a feature, have already been described. However, until now, single genes explain only a minority of cases. We hypothesize that differentiated thyroid cancer is a polygenic disease. Data from epidemiologic studies, about occult and multifocal carcinomas and the different response to specific risk factors contribute to this hypothesis.
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Affiliation(s)
- T P Links
- Departments of Endocrinology, University Hospital Groningen, Groningen, The Netherlands.
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Su M, Lu SM, Tian DP, Zhao H, Li XY, Li DR, Zheng ZC. Relationship between ABO blood groups and carcinoma of esophagus and cardia in Chaoshan inhabitants of China. World J Gastroenterol 2001; 7:657-61. [PMID: 11819849 PMCID: PMC4695569 DOI: 10.3748/wjg.v7.i5.657] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2001] [Revised: 07/06/2001] [Accepted: 07/18/2001] [Indexed: 02/06/2023] Open
Abstract
AIM To study the relationship between ABO blood groups and carcinoma of esophagus and cardia in Chaoshan inhabitants of China, which is a unique Littoral high-risk area of esophageal carcinoma in China. The poor communication and transportation in the past has made Chaoshan a relatively closed area and kept its culture and custure of old China thousand years ago. METHODS Data on age, sex, ABO blood type and X-ray or pathological diagnose of the patients with carcinoma of esophagus or cardia were collected from the Tumor Hospital. First Affiliated Hospital, Second Affiliated Hospital of Shantou University Medical College; and the Central Hospital of Shantou and the Central Hospital of Jieyang. A total of 6685 patients with esophageal carcinoma (EC) and 2955 patients with cardiac cancer (CC) in Chaoshan district were retrospectively assessed for their association with ABO blood groups. RESULTS The distribution of ABO blood groups in patients with EC or CC was similar to the normal local population in Chaoshan. However, blood group B in male patients with CC and in the patients with carcinoma in the upper third esophagus was 2.3% and 4.7% higher than the corresponding controls. The relative risk B O was 1.1415 (P<0.05) and 1.2696 (P<0.05), respectively. No relationship was found between ABO blood groups and tumor differentiation. CONCLUSION ABO blood group B is associated with the incidence of CC in male individuals and carcinoma in the upper third esophagus. The distribution of ABO blood groups varies in the different geographical and ethnic groups. As a result, proper controls are very important for such studies.
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Affiliation(s)
- M Su
- Department of Pathology, Shantou University Medical College, Shantou 515031,China.
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