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Lesch R, Fitch WT. The domestication of the larynx: The neural crest connection. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2024; 342:342-349. [PMID: 38591232 PMCID: PMC7616162 DOI: 10.1002/jez.b.23251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/23/2024] [Accepted: 03/03/2024] [Indexed: 04/10/2024]
Abstract
Wolves howl and dogs bark, both are able to produce variants of either vocalization, but we see a distinct difference in usage between wild and domesticate. Other domesticates also show distinct changes to their vocal output: domestic cats retain meows, a distinctly subadult trait in wildcats. Such differences in acoustic output are well-known, but the causal mechanisms remain little-studied. Potential links between domestication and vocal output are intriguing for multiple reasons, and offer a unique opportunity to explore a prominent hypothesis in domestication research: the neural crest/domestication syndrome hypothesis. This hypothesis suggests that in the early stages of domestication, selection for tame individuals decreased neural crest cell (NCCs) proliferation and migration, which led to a downregulation of the sympathetic arousal system, and hence reduced fear and reactive aggression. NCCs are a transitory stem cell population crucial during embryonic development that tie to diverse tissue types and organ systems. One of these neural-crest derived systems is the larynx, the main vocal source in mammals. We argue that this connection between NCCs and the larynx provides a powerful test of the predictions of the neural crest/domestication syndrome hypothesis, discriminating its predictions from those of other current hypotheses concerning domestication.
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Affiliation(s)
- Raffaela Lesch
- Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas, USA
| | - W Tecumseh Fitch
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria
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2
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Shaw T, Barr FG, Üren A. The PAX Genes: Roles in Development, Cancer, and Other Diseases. Cancers (Basel) 2024; 16:1022. [PMID: 38473380 PMCID: PMC10931086 DOI: 10.3390/cancers16051022] [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: 02/12/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Since their 1986 discovery in Drosophila, Paired box (PAX) genes have been shown to play major roles in the early development of the eye, muscle, skeleton, kidney, and other organs. Consistent with their roles as master regulators of tissue formation, the PAX family members are evolutionarily conserved, regulate large transcriptional networks, and in turn can be regulated by a variety of mechanisms. Losses or mutations in these genes can result in developmental disorders or cancers. The precise mechanisms by which PAX genes control disease pathogenesis are well understood in some cases, but much remains to be explored. A deeper understanding of the biology of these genes, therefore, has the potential to aid in the improvement of disease diagnosis and the development of new treatments.
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Affiliation(s)
- Taryn Shaw
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20001, USA
| | - Frederic G Barr
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD 20892, USA
| | - Aykut Üren
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC 20001, USA
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3
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Fallahi P, Patrizio A, Stoppini G, Elia G, Ragusa F, Paparo SR, Balestri E, Mazzi V, Botrini C, Varricchi G, Ulisse S, Ghionzoli M, Antonelli A, Ferrari SM. Simultaneous Occurrence of Medullary Thyroid Carcinoma and Papillary Thyroid Carcinoma: A Case Series with Literature Review. Curr Oncol 2023; 30:10237-10248. [PMID: 38132379 PMCID: PMC10742226 DOI: 10.3390/curroncol30120745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Papillary thyroid carcinoma (PTC) is the most common type of differentiated TC, while medullary TC (MTC) accounts for 4%. The concomitant presence of PTC and MTC is rare. METHODS This is a retrospective, single-center observational study conducted over 16 years (2001-2017). The data were collected from the clinical records of patients who underwent total thyroidectomy at the Endocrine Unit-Department of Medicine of the University Hospital of Pisa, Italy. RESULTS Over 690 analyzed cases, 650 (94.2%) were exclusive DTC, 19 exclusive MTC (2.75%) and 5 PTC/MTC (0.7%). No case of mixed medullary/follicular TC or hereditary MTC (familial MTC/multiple endocrine neoplasia type 2) was found. Among the five PTC/MTC cases, there was a male prevalence (M:F = 3:2), and all PTC components were at stage I, whereas 40% of MTC were at stage I and III and 20% of MTC were at stage II; microPTC (mPTC) was prevalent (80%) and also microMTCs were frequent (40%); 60% of MTC patients recovered, while 40% of patients developed metastatic disease. The search for germline mutations of the RET gene resulted in being negative in all cases. CONCLUSIONS The incidence of PTC/MTC has been increasing over the past 30 years. The etiology of PTC/MTC forms is still unknown, and although this simultaneous occurrence could be only a coincidence, we cannot exclude the hypothesis of a shared genetic origin.
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Affiliation(s)
- Poupak Fallahi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (P.F.); (S.R.P.)
| | - Armando Patrizio
- Department of Emergency Medicine, Azienda Ospedaliero-Universitaria Pisana, 56126 Pisa, Italy;
| | - Giulio Stoppini
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Giusy Elia
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Francesca Ragusa
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Sabrina Rosaria Paparo
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (P.F.); (S.R.P.)
| | - Eugenia Balestri
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Valeria Mazzi
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Chiara Botrini
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Gilda Varricchi
- Department of Translational Medical Sciences, Center for Basic and Clinical Immunology Research (CISI), World Allergy Organization (WAO), Center of Excellence, Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, University of Naples “Federico II”, 80138 Naples, Italy;
| | - Salvatore Ulisse
- Department of Surgical Sciences, ‘Sapienza’ University of Rome, 00161 Rome, Italy;
| | - Marco Ghionzoli
- Division of Pediatric Surgery, Department of Surgical Pathology, University of Pisa, 56126 Pisa, Italy;
| | - Alessandro Antonelli
- Department of Surgery, Medical and Molecular Pathology and Critical Area, University of Pisa, 56126 Pisa, Italy; (G.S.); (G.E.); (F.R.); (E.B.); (V.M.); (C.B.)
| | - Silvia Martina Ferrari
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy;
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Rowell NP. Radioactive iodine in the management of medullary carcinoma of the thyroid. Br J Radiol 2023; 96:20220660. [PMID: 37335288 PMCID: PMC10392661 DOI: 10.1259/bjr.20220660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 02/04/2023] [Accepted: 04/04/2023] [Indexed: 06/21/2023] Open
Abstract
OBJECTIVES Although it is generally accepted that medullary thyroid cancer (MTC) cells do not take up iodine, there are reports indicating that this can occur. Additionally, the potential for radioactive iodine (RAI) to reduce the risk of recurrence within the thyroid bed following thyroid remnant ablation in MTC is uncertain. A systematic review was therefore undertaken. METHODS Studies of patients with MTC of any age or stage receiving RAI, either as adjuvant postoperative treatment or primary treatment for unresectable disease, or as treatment for recurrent or metastatic disease were eligible for inclusion. Randomised and non-randomised studies were identified by electronic searching of Medline and Embase databases. A risk of bias assessment (ROBINS-I) was carried out for each study. Outcome measures sought included overall survival, locoregional relapse-free survival, rates of locoregional recurrence, and changes in serum calcitonin. A protocol was registered with PROSPERO before the systematic review was undertaken. RESULTS There were no randomised studies. Ten non-randomised studies (525 patients) and ten case reports (21 patients) met the inclusion criteria, with all studies containing a high risk of bias. There were case reports reporting responses to RAI, both as adjuvant treatment and for recurrent/metastatic disease. CONCLUSIONS The proportion of metastatic or recurrent MTC which take up iodine remains unknown. A possible role of RAI ablation for patients with localised MTC and raised calcitonin post-thyroidectomy should be explored. ADVANCES IN KNOWLEDGE Although there is insufficient data to recommend changes to current treatment policies, this review suggests avenues for further research.
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Affiliation(s)
- Nicholas P Rowell
- Kent Oncology Centre, Maidstone Hospital, Maidstone, Kent, United Kingdom
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Jung CK, Agarwal S, Hang JF, Lim DJ, Bychkov A, Mete O. Update on C-Cell Neuroendocrine Neoplasm: Prognostic and Predictive Histopathologic and Molecular Features of Medullary Thyroid Carcinoma. Endocr Pathol 2023; 34:1-22. [PMID: 36890425 DOI: 10.1007/s12022-023-09753-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/24/2023] [Indexed: 03/10/2023]
Abstract
Medullary thyroid carcinoma (MTC) is a C-cell-derived epithelial neuroendocrine neoplasm. With the exception of rare examples, most are well-differentiated epithelial neuroendocrine neoplasms (also known as neuroendocrine tumors in the taxonomy of the International Agency for Research on Cancer [IARC] of the World Health Organization [WHO]). This review provides an overview and recent evidence-based data on the molecular genetics, disease risk stratification based on clinicopathologic variables including molecular profiling and histopathologic variables, and targeted molecular therapies in patients with advanced MTC. While MTC is not the only neuroendocrine neoplasm in the thyroid gland, other neuroendocrine neoplasms in the thyroid include intrathyroidal thymic neuroendocrine neoplasms, intrathyroidal parathyroid neoplasms, and primary thyroid paragangliomas as well as metastatic neuroendocrine neoplasms. Therefore, the first responsibility of a pathologist is to distinguish MTC from other mimics using appropriate biomarkers. The second responsibility includes meticulous assessment of the status of angioinvasion (defined as tumor cells invading through a vessel wall and forming tumor-fibrin complexes, or intravascular tumor cells admixed with fibrin/thrombus), tumor necrosis, proliferative rate (mitotic count and Ki67 labeling index), and tumor grade (low- or high-grade) along with the tumor stage and the resection margins. Given the morphologic and proliferative heterogeneity in these neoplasms, an exhaustive sampling is strongly recommended. Routine molecular testing for pathogenic germline RET variants is typically performed in all patients with a diagnosis of MTC; however, multifocal C-cell hyperplasia in association with at least a single focus of MTC and/or multifocal C-cell neoplasia are morphological harbingers of germline RET alterations. It is of interest to assess the status of pathogenic molecular alterations involving genes other than RET like the MET variants in MTC families with no pathogenic germline RET variants. Furthermore, the status of somatic RET alterations should be determined in all advanced/progressive or metastatic diseases, especially when selective RET inhibitor therapy (e.g., selpercatinib or pralsetinib) is considered. While the role of routine SSTR2/5 immunohistochemistry remains to be further clarified, evidence suggests that patients with somatostatin receptor (SSTR)-avid metastatic disease may also benefit from the option of 177Lu-DOTATATE peptide radionuclide receptor therapy. Finally, the authors of this review make a call to support the nomenclature change of MTC to C-cell neuroendocrine neoplasm to align this entity with the IARC/WHO taxonomy since MTCs represent epithelial neuroendocrine neoplasms of endoderm-derived C-cells.
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Affiliation(s)
- Chan Kwon Jung
- Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
| | - Shipra Agarwal
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Jen-Fan Hang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine and Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Dong-Jun Lim
- Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Andrey Bychkov
- Department of Pathology, Kameda Medical Center, Kamogawa, Chiba, 296-8602, Japan
| | - Ozgur Mete
- Department of Pathology, University Health Network, Toronto, ON, M5G 2C4, Canada
- Endocrine Oncology Site, Princess Margaret Cancer, Toronto, ON, M5G 2C4, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, M5G 2C4, Canada
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Comparative Histology of C Thyrocytes in Four Domestic Animal Species: Dog, Pig, Horse, and Cattle. Animals (Basel) 2022; 12:ani12101324. [PMID: 35625170 PMCID: PMC9137929 DOI: 10.3390/ani12101324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 11/27/2022] Open
Abstract
Simple Summary In this study we have proved that dogs, pigs, cattle, and horses, species belonging to four distinct families, differ in regard to microscopical characteristics of their C thyrocytes. Although the total number of C thyrocyte profiles and their localization within thyroid lobes were comparable, each of the examined species displayed their unique morphological characteristics and distribution pattern. The differences described in our study, easily recognizable microscopically, can be used as a reference material for further studies focused on C thyrocytes biology in physiological and pathological conditions. Abstract The number, morphology, and distribution of C thyrocytes within the thyroid gland vary among species; however, studies in domestic animals are limited. In this study we compared the morphology, distribution pattern, and percentage of C thyrocytes in four domestic species: dogs, pigs, horses, and cattle. Eighty thyroid glands, 20 per species, were examined. C thyrocytes were visualized immunohistochemically with anti-calcitonin rabbit polyclonal antibody alone and combined with the periodic acid Schiff method to simultaneously visualize C thyrocytes with the basement membranes of thyroid follicles. C thyrocyte morphology varied considerably between species, from oval- (dogs) and spindle-shaped (pigs) to polymorphic (cattle and horses). Bovine C thyrocytes demonstrated cytoplasmic protrusion. C thyrocytes were located intrafolliculary (all species), epifollicularly (dogs, horses, cattle), or interfolicularly (cattle). Most porcine and bovine C thyrocytes existed individually whereas canine C thyrocytes usually formed clusters. In horses, they tended to form groups of various shapes and sizes or even rims encompassing whole follicles. In all species, the number of C thyrocyte profiles increased from the periphery to the central area of the thyroid lobe. The mean total fraction of C thyrocytes in the superficial, intermediate, and central areas were as follows: 2.55%, 8.43%, and 12.48% in dogs; 3.81%, 7.66%, and 10.79% in pigs; 1.55%, 7.44%, and 8.87% in horses; and 2.62%, 10.75%, and 12.96% in cattle. No statistical differences in the total number of C thyrocyte profiles were observed among species (8.87% in dogs, 8.58% in cattle, 7.98% in pigs, and 5.83% in horses). Our results indicated that the studied species displayed their own morphological characteristics and distribution pattern of C thyrocytes; however, total numbers of C thyrocyte profiles and their localization within the thyroid lobe are comparable.
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Mathiesen DS, Lund A, Holst JJ, Knop FK, Lutz TA, Bagger JI. THERAPY OF ENDOCRINE DISEASE: Amylin and calcitonin - physiology and pharmacology. Eur J Endocrinol 2022; 186:R93-R111. [PMID: 35353712 DOI: 10.1530/eje-21-1261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/30/2022] [Indexed: 11/08/2022]
Abstract
Type 2 diabetes is a common manifestation of metabolic dysfunction due to obesity and constitutes a major burden for modern health care systems, in concert with the alarming rise in obesity worldwide. In recent years, several successful pharmacotherapies improving glucose metabolism have emerged and some of these also promote weight loss, thus, ameliorating insulin resistance. However, the progressive nature of type 2 diabetes is not halted by these new anti-diabetic pharmacotherapies. Therefore, novel therapies promoting weight loss further and delaying diabetes progression are needed. Amylin, a beta cell hormone, has satiating properties and also delays gastric emptying and inhibits postprandial glucagon secretion with the net result of reducing postprandial glucose excursions. Amylin acts through the six amylin receptors, which share the core component with the calcitonin receptor. Calcitonin, derived from thyroid C cells, is best known for its role in humane calcium metabolism, where it inhibits osteoclasts and reduces circulating calcium. However, calcitonin, particularly of salmon origin, has also been shown to affect insulin sensitivity, reduce the gastric emptying rate and promote satiation. Preclinical trials with agents targeting the calcitonin receptor and the amylin receptors, show improvements in several parameters of glucose metabolism including insulin sensitivity and some of these agents are currently undergoing clinical trials. Here, we review the physiological and pharmacological effects of amylin and calcitonin and discuss the future potential of amylin and calcitonin-based treatments for patients with type 2 diabetes and obesity.
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Affiliation(s)
- David S Mathiesen
- Center for Clinical Metabolic Research, Gentofte Hospital, Hellerup, Denmark
| | - Asger Lund
- Center for Clinical Metabolic Research, Gentofte Hospital, Hellerup, Denmark
- Department of Medicine, Gentofte and Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jens J Holst
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Filip K Knop
- Center for Clinical Metabolic Research, Gentofte Hospital, Hellerup, Denmark
- Department of Medicine, Gentofte and Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas A Lutz
- Institute of Veterinary Physiology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland
| | - Jonatan I Bagger
- Center for Clinical Metabolic Research, Gentofte Hospital, Hellerup, Denmark
- Department of Medicine, Gentofte and Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
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8
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Abdullah AM, Ali RM, Salih KM, Mohammed KK, Kakamad FH, Salih AM. Synchronous occurrence of papillary thyroid microcarcinoma, medullary thyroid carcinoma and Hashimoto thyroiditis in a single thyroid: A case report with literature review. Int J Surg Case Rep 2022; 93:106888. [PMID: 35318184 PMCID: PMC8935503 DOI: 10.1016/j.ijscr.2022.106888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 11/02/2022] Open
Abstract
Introduction Case report Discussion Conclusion Thyroid malignancies are less common than other types of cancer. The interactions between medullary and papillary carcinomas are of particular interest. Synchronous development of medullary and papillary carcinoma has been reported very rarely. In this paper, the occurrence of Hashimoto thyroiditis with papillary carcinoma and medullary carcinoma is reported.
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9
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Almansoori A, Bhamidimarri PM, Bendardaf R, Hamoudi R. In silico Analysis of Publicly Available Transcriptomics Data Identifies Putative Prognostic and Therapeutic Molecular Targets for Papillary Thyroid Carcinoma. Int J Gen Med 2022; 15:3097-3120. [PMID: 35330879 PMCID: PMC8939872 DOI: 10.2147/ijgm.s345336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Background Purpose Methods Results Conclusion
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Affiliation(s)
- Asma Almansoori
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Correspondence: Asma Almansoori; Rifat Hamoudi, Email ;
| | | | - Riyad Bendardaf
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Oncology, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Rifat Hamoudi
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Division of Surgery and Interventional Science, University College London, London, UK
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10
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A Review of the Significance in Measuring Preoperative and Postoperative Carcinoembryonic Antigen (CEA) Values in Patients with Medullary Thyroid Carcinoma (MTC). ACTA ACUST UNITED AC 2021; 57:medicina57060609. [PMID: 34208296 PMCID: PMC8230872 DOI: 10.3390/medicina57060609] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/22/2022]
Abstract
Background and Objectives: Medullary thyroid carcinoma (MTC) accounts for 1–2% of all thyroid malignancies, and it originates from parafollicular “C” cells. Carcinoembryonic antigen (CEA) is a tumor marker, mainly for gastrointestinal malignancies. There are references in literature where elevated CEA levels may be the first finding in MTC. The aim of this study is to determine the importance of measuring preoperative and postoperative CEA values in patients with MTC and to define the clinical significance of the correlation between CEA and the origin of C cells. Materials and Methods: The existing and relevant literature was reviewed by searching for articles and specific keywords in the scientific databases of PubMedCentraland Google Scholar (till December 2020). Results: CEA has found its place, especially at the preoperative level, in the diagnostic approach of MTC. Preoperative CEA values >30 ng/mL indicate extra-thyroid disease, while CEA values >100 ng/mL are associated with lymph node involvement and distant metastases. The increase in CEA values preoperatively is associated with larger size of primary tumor, presence of lymph nodes, distant metastases and a poorer prognosis. The clinical significance of CEA values for the surgeon is the optimal planning of surgical treatment. In the recent literature, C cells seem to originate from the endoderm of the primitive anterior gut at the ultimobranchial bodies’ level. Conclusions: Although CEA is not a specific biomarker of the disease in MTC, itsmeasurement is useful in assessing the progression of the disease. The embryonic origin of C cells could explain the increased CEA values in MTC.
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11
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Leimbach RD, Hoang TD, Shakir MKM. Diagnostic Challenges of Medullary Thyroid Carcinoma. Oncology 2021; 99:422-432. [PMID: 33878761 DOI: 10.1159/000515373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 02/17/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Medullary thyroid carcinoma (MTC) comprises 1-2% of all thyroid cancers, yet 15% of all thyroid cancer-related deaths. While up to 20% of cases may be predicted due to autosomal dominant germline mutations, 80% of cases are sporadic. However, due to non-specific presenting symptoms and diagnostic imaging, prompt diagnosis and treatment has remained elusive. This article will further investigate the limitations of MTC diagnosis and look into future areas for diagnostic improvement. METHODS Relevant articles were identified using a systematic PubMed and Google Scholar search. RESULTS Prophylactic total thyroidectomy for the 20% of MTC cases that are present in autosomal dominant disorder provides definitive treatment. Serum calcitonin (Ctn) screening has several technical limitations due to population variability and laboratory assay interference, but advances in laboratory technology and combined use with fine needle aspiration increase its sensitivity. Other serum assays such as carcinoembryonic antigen and procalcitonin have limited applicability. Thyroid ultrasound remains the gold standard for the initial diagnostic planning, with limited application for CT, MRI, and PET imaging. CONCLUSION With complete surgical resection the only definitive treatment, early MTC diagnosis has presented an elusive challenge, mainly due to its relative rarity and difficulty in finding an economic screening strategy. Careful family history combined with fine needle aspiration with serum Ctn analysis can improve diagnostic sensitivity and specificity to greater than 95%.
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Affiliation(s)
- Robert D Leimbach
- Division of Endocrinology, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Thanh D Hoang
- Division of Endocrinology, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Mohamed K M Shakir
- Division of Endocrinology, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.,Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
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12
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Ozolek JA. Selected Topics in the Pathology of the Thyroid and Parathyroid Glands in Children and Adolescents. Head Neck Pathol 2021; 15:85-106. [PMID: 33723755 PMCID: PMC8010056 DOI: 10.1007/s12105-020-01274-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 12/11/2020] [Indexed: 01/09/2023]
Abstract
The goals of this chapter in keeping with the overall general themes of this special edition will be (1) to highlight aspects of development of the thyroid and parathyroid glands with particular focus on the role and contribution of the neural crest (or not) and how this may impact on the pathology that is seen, (2) to emphasize those lesions particularly more commonly arising in the pediatric population that actually generate specimens that the surgical pathologist would encounter, and (3) highlight more in depth specific lesions associated with heritable syndromes or specific gene mutations since the heritable syndromes tends to manifest in the pediatric age group. In this light, the other interesting areas of pediatric thyroid disease including medical thyroid diseases, congenital hypothyroidism, anatomic variants and aberrations of development that lead to structural anomalies will not be emphasized here.
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Affiliation(s)
- John A. Ozolek
- West Virginia University School of Medicine, Morgantown, WV USA
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13
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San-Jose LM, Roulin A. On the Potential Role of the Neural Crest Cells in Integrating Pigmentation Into Behavioral and Physiological Syndromes. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.00278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Barbieri A, Prasad ML, Gilani SM. Thyroid tissue outside the thyroid gland: Differential diagnosis and associated diagnostic challenges. Ann Diagn Pathol 2020; 48:151584. [PMID: 32871503 DOI: 10.1016/j.anndiagpath.2020.151584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022]
Abstract
The presence of thyroid tissue outside of the thyroid gland may occur in various clinical settings and anatomic locations and includes both benign and malignant differential diagnoses. Some of these entities include thyroglossal duct cyst, lingual thyroid, parasitic nodule, thyroid tissue within a lymph node and struma ovarii. In routine daily practice, these entities do pose diagnostic challenges for the pathologists. Differential diagnostic considerations depend largely on the location of lesion and the histologic features. A definitive diagnosis may remain unclear in some cases while knowledge is still evolving in others i.e., incidentally detected bland appearing thyroid follicles in a lateral neck lymph node. This article aims to elaborate on the various entities characterized by thyroid tissue outside of the thyroid gland, both benign and malignant, and the relevant differential diagnostic considerations.
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Affiliation(s)
- Andrea Barbieri
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Manju L Prasad
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Syed M Gilani
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA.
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15
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Higuchi M, Hirokawa M, Suzuki A, Masuoka H, Miyauchi A. Thyroid Tubercle of Zuckerkandl May Not Arise from the Ultimobranchial Body: Results from Histological Analysis. Pathobiology 2020; 87:193-197. [PMID: 32252057 DOI: 10.1159/000506231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 01/28/2020] [Indexed: 11/19/2022] Open
Abstract
Thyroid tubercle of Zuckerkandl (TZ) is a nodule arising from the posterolateral thyroid, considered to be a remnant of the ultimobranchial body (UB). Considering that C cells and solid cell nests also arise from the UB, we hypothesized that these would be present in the TZ. We examined the presence of C cells and solid cell nests in the TZ using the histological analyses of 21 patients with grade 2 or 3 TZs following Pelizzo's grading system. Out of 21 TZs, 19 (90.5%) were located in the right lobe of the thyroid. Microscopically, solid cell nests were found within the TZ in 1 case (4.8%), and within the main thyroid tissues in 3 cases (14.3%). Calcitonin-positive C cells were scattered within the TZ in 1 case (4.8%), and within the main thyroid tissue in 15 cases (71.4%). The distribution of C cells within the main thyroid tissue was denser than that within the TZ. The above-mentioned results indicated the lack of C cells and solid cell nests in the TZ. Although the TZ may have an embryological origin different from that of ordinary thyroid tissue, it is unlikely that the remnants of the UB are involved in the formation of the TZ.
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Affiliation(s)
- Miyoko Higuchi
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan,
| | | | - Ayana Suzuki
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
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16
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Manatakis DK, Bakavos A, Soulou VN, Dimakis C, Tseleni-Balafouta S. Reactive C cell hyperplasia as an incidental finding after thyroidectomy for papillary carcinoma. Hormones (Athens) 2019; 18:289-295. [PMID: 31292912 DOI: 10.1007/s42000-019-00119-3] [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: 02/09/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
Abstract
The biologic and clinical significance of reactive C cell hyperplasia (CCH), adjacent to differentiated thyroid cancers, remains unknown. Our aim was to investigate the presence of CCH in thyroidectomy specimens with papillary thyroid carcinomas (PTC) and discuss its epidemiology and histology. In total, 413 patients were prospectively included in the study (189 benign goiters, 224 PTC). Reactive CCH was observed in 9.8% of PTC cases (32% males, 68% females, mean age 48.3 ± 16.4 years) and usually ipsilateral to the primary tumor (91%). Histologically, CCH was either focal (91%) or diffuse (9%) and almost always (92%) found in the middle or upper thirds of the thyroid lobes. Patients with PTC/CCH were generally younger than patients with benign goiters (0.027). On the other hand, patients with PTC and with PTC/CCH did not differ in terms of age, gender, basal calcitonin levels, primary tumor size, multifocality, extrathyroidal invasion, or lymph node metastasis. Thyroiditis, however, was more frequent in cases with PTC/CCH compared to PTC alone. Reactive CCH is considered a physiological response of the C cells to various stimuli, differentiated thyroid cancer among others. It bears no malignant potential and requires no additional treatment, following thyroidectomy.
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Affiliation(s)
- Dimitrios K Manatakis
- Department of Surgery, Athens Naval and Veterans Hospital, 70 Deinokratous Str, Athens, Greece.
| | - Apostolos Bakavos
- Department of ENT Surgery, Athens Naval and Veterans Hospital, Athens, Greece
| | - Vasiliki N Soulou
- Department of Surgery, Athens Naval and Veterans Hospital, 70 Deinokratous Str, Athens, Greece
| | | | - Sofia Tseleni-Balafouta
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
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17
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Uncovering the anti-metastasis effects and mechanisms of capsaicin against hepatocellular carcinoma cells by metabolomics. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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18
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Theurer S, Siebolts U, Lorenz K, Dralle H, Schmid KW. [Ectopic tissue of the thyroid gland and the parathyroid glands]. DER PATHOLOGE 2019; 39:379-389. [PMID: 30105609 DOI: 10.1007/s00292-018-0467-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ectopic thyroid tissue results from developmental defects of the early stages of thyroid embryogenesis, in which the median thyroid anlage descends from the floor of the mouth to its final pre-tracheal position. The most common sites of ectopic thyroid tissue are accordingly in the area of the floor of the mouth and in the course of the thyroglossal duct. Rare localizations are intrathoracic (mediastinal, cardiac, pulmonary) and sub-diaphragmatic (including the adrenals, liver, gall bladder, and gastrointestinal tract). The most important differential diagnosis of ectopic thyroid is metastasis of differentiated thyroid carcinoma.By contrast, the term parathyroidectopy is not uniformly defined. Usually, the cervical-central localizations are referred to as "positional variants" (with the exception of the maxillary sinus and high parapharyngeal), whereas the cervical-lateral localizations (carotid sheath, vagus nerve) and those below the brachiocephalic and mediastinal positions (extraligamentary, aortopulmonary window, paravagal) and other rare localizations are classified as "ectopic parathyroid tissue". Parathyroidectomy is very common (in autopsy studies in 28 to 42.8% of all humans). In the context of primary hyperparathyroidism (pHPT), there is a prevalence of 6.3 to 16% of ectopic hyperfunctional parathyroid tissue (predominantly adenomas), which play an important role in the surgical treatment of pHPT.
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Affiliation(s)
- S Theurer
- Institut für Pathologie, Universitätsklinikum Essen, Universität Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - U Siebolts
- Institut für Pathologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Deutschland
| | - K Lorenz
- Klinik und Poliklinik für Viszeral‑, Gefäß- und Endokrine Chirurgie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Deutschland
| | - H Dralle
- Klinik für Allgemeinchirurgie, Viszeral- und Transplantationschirurgie, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Deutschland
| | - K W Schmid
- Institut für Pathologie, Universitätsklinikum Essen, Universität Duisburg-Essen, Hufelandstraße 55, 45147, Essen, Deutschland.
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19
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Abstract
Medullary thyroid carcinoma (MTC), arising from the parafollicular C cells of the thyroid, accounts for 1–2% of thyroid cancers. MTC is frequently aggressive and metastasizes to cervical and mediastinal lymph nodes, lungs, liver, and bones. Although a number of new imaging modalities for directing the management of oncologic patients evolved over the last two decades, the clinical application of these novel techniques is limited in MTC. In this article, we review the biology and molecular aspects of MTC as an important background for the use of current imaging modalities and approaches for this tumor. We discuss the modern and currently available imaging techniques—advanced magnetic resonance imaging (MRI)-based techniques such as whole-body MRI, dynamic contrast-enhanced (DCE) technique, diffusion-weighted imaging (DWI), positron emission tomography/computed tomography (PET/CT) with 18F-FDOPA and 18F-FDG, and integrated positron emission tomography/magnetic resonance (PET/MR) hybrid imaging—for primary as well as metastatic MTC tumor, including its metastatic spread to lymph nodes and the most common sites of distant metastases: lungs, liver, and bones.
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20
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Abstract
Thyroid gland has been implicated in the regulation of many functions using endocrine, paracrine and autocrine signals. Functional thyroid follicular cells derived from stem cells attracted a great interest from researchers as a strategy for thyroid's regenerative therapy. Thyroid has a very low rate of turnover; however, studies showed that the regenerative ability is enhanced following diseases or thyroidectomy, which promotes the role of stem cell. The objective of this review is to summarize the morphological characterization and the expression of stem cell genes/markers in the thyroid. Also, to highlight the mechanisms of tumor formation in thyroid via its stem cells. The most important thyroid stem cell's markers are: stem cell antigen 1 (SCA-1), octamer-binding transcription 4 (OCT-4), p63, CD34+ CD45-, paired box gene 8 (PAX-8), thyroid transcription factor 1 (TTF-1), thyroid transcription factor 2 (TTF-2), hematopoietically expressed homeobox protein HHEX, the transcription factor GATA-4, hepatocyte nuclear factor 4-α (HNF-4-α) and homeobox transcription factor Nanog (hNanog). This review highlights the functional characterization describing the mechanisms of stem cell's differentiation into functional thyroid follicle and proposing mechanisms involving in cancer formation through one of these cell types: fetal cell, thyroblasts, prothyrocytes, certain genetic mutation in the mature thyroid cells or presence of a special type of cells (cancer stem cell) which are responsible for different types of cancer formation. Understanding the mechanisms of thyroid's stem cell in cancer formation and the expression of the biomarkers in normal and abnormal thyroid status are promising physiological tools in promoting thyroid regeneration and in provision management for thyroid cancer.
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Affiliation(s)
- Ebtesam A Al-Suhaimi
- Department of Biology, College of Sciences, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, Saudi Arabia.
- Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, Saudi Arabia.
| | - Khulood Al-Khater
- Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, Saudi Arabia
- Department of Anatomy, College of Medicine, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, Saudi Arabia
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21
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Keelawat S, Bychkov A. Compact buds with biphasic differentiation and calcitonin-expressing neuroendocrine cells—previously unrecognized structures of thyroglossal duct unveiled by immunohistochemistry. Virchows Arch 2019; 474:609-617. [DOI: 10.1007/s00428-019-02536-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 01/28/2019] [Indexed: 12/19/2022]
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22
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Follicular cell lineage in persistent ultimobranchial remnants of mammals. Cell Tissue Res 2019; 376:1-18. [PMID: 30617614 DOI: 10.1007/s00441-018-02982-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 12/14/2018] [Indexed: 02/07/2023]
Abstract
It has been a subject of much debate whether thyroid follicular cells originate from the ultimobranchial body, in addition to median thyroid primordium. Ultimobranchial remnants are detected in normal dogs, rats, mice, cattle, bison and humans and also in mutant mice such as Eya1 homozygotes, Hox3 paralogs homozygotes, Nkx2.1 heterozygotes and FRS2α2F/2F. Besides C cells, follicular cell lineages immunoreactive for thyroglobulin are located within these ultimobranchial remnants. In dogs, the C cell complexes, i.e., large cell clusters consisting of C cells and undifferentiated cells, are present together with parathyroid IV and thymus IV in or close to the thyroid lobe. In addition, follicular cells in various stages of differentiation, including follicular cell groups and primitive and minute follicles storing colloid, are intermingled with C cells in some complexes. This review elaborates the transcription factors and signaling molecules involved in folliculogenesis and it is supposed why the follicular cells in the ultimobranchial remnants are sustained in immature stages. Pax8, a transcription factor crucial for the development of follicular cells, is expressed in the fourth pharyngeal pouch and the ultimobranchial body in human embryos. Pax8 expression is also detected in the ultimobranchial remnants of Eya1 and Hes1 null mutant mice. To determine whether the C cells and follicular cells in the ultimobranchial remnants consist of dual lineage cells or are derived from the common precursor, the changes of undifferentiated cells in dog C cell complexes are examined after chronically induced hypercalcemia or antithyroid drug treatment.
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23
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Triantafyllou A, Devaney KO, Hunt JL, Rinaldo A, Ferlito A. Structural biology of intraepithelial neuroendocrine cells in the larynx: Literature review. Pathol Res Pract 2018; 215:1-4. [PMID: 30396757 DOI: 10.1016/j.prp.2018.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 10/21/2018] [Accepted: 10/22/2018] [Indexed: 12/01/2022]
Abstract
Current knowledge of laryngeal neuroendocrine cells in man and other vertebrates is reviewed. Particular attention is paid to differences in the distribution of neuroendocrine cells between squamous and respiratory laryngeal mucosa, foetal versus post-natal spatial arrangements, relation to the laryngeal cavity and nerve fibres, and immunoreactivities of these cells. Methodological deficiencies and gaps in knowledge are outlined. Comparisons with neuroendocrine cells in lung and gut are drawn, caution with regard to existing histogenetic models of laryngeal neuroendocrine neoplasia is advised and lines of future research are suggested.
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Affiliation(s)
- Asterios Triantafyllou
- Department of Pathology, Liverpool Clinical Laboratories, Royal Liverpool University Hospital, Liverpool, UK; School of Dentistry, University of Liverpool, Liverpool, UK.
| | | | - Jennifer L Hunt
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | | | - Alfio Ferlito
- Coordinator of the International Head and Neck Scientific Group, Padua, Italy
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24
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Priya SR, Dravid CS, Digumarti R, Dandekar M. Targeted Therapy for Medullary Thyroid Cancer: A Review. Front Oncol 2017; 7:238. [PMID: 29057215 PMCID: PMC5635342 DOI: 10.3389/fonc.2017.00238] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 09/19/2017] [Indexed: 12/16/2022] Open
Abstract
Medullary thyroid cancers (MTCs) constitute between 2 and 5% of all thyroid cancers. The 10-year overall survival (OS) rate of patients with localized disease is around 95% while that of patients with regional stage disease is about 75%. Only 20% of patients with distant metastases at diagnosis survive 10 years which is significantly lower than for differentiated thyroid cancers. Cases with regional metastases at presentation have high recurrence rates. Adjuvant external radiation confers local control but not improved OS. The management of residual, recurrent, or metastatic disease till a few years ago was re-surgery with local measures such as radiation. Chemotherapy was used with marginal benefit. The development of targeted therapy has brought in a major advantage in management of such patients. Two drugs—vandetanib and cabozantinib—have been approved for use in progressive or metastatic MTC. In addition, several drugs acting on other steps of the molecular pathway are being investigated with promising results. Targeted radionuclide therapy also provides an effective treatment option with good quality of life. This review covers the rationale of targeted therapy for MTC, present treatment options, drugs and methods under investigation, as well as an outline of the adverse effects and their management.
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Affiliation(s)
- S R Priya
- Head Neck Surgery, Homi Bhabha Cancer Hospital and Research Centre, Visakhapatnam, India.,Tata Memorial Centre, Mumbai, India
| | - Chandra Shekhar Dravid
- Head Neck Surgery, Homi Bhabha Cancer Hospital and Research Centre, Visakhapatnam, India.,Tata Memorial Centre, Mumbai, India
| | - Raghunadharao Digumarti
- Tata Memorial Centre, Mumbai, India.,Medical Oncology, Homi Bhabha Cancer Hospital and Research Centre, Visakhapatnam, India
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25
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Abstract
Thyroid hormones are crucial for organismal development and homeostasis. In humans, untreated congenital hypothyroidism due to thyroid agenesis inevitably leads to cretinism, which comprises irreversible brain dysfunction and dwarfism. Elucidating how the thyroid gland - the only source of thyroid hormones in the body - develops is thus key for understanding and treating thyroid dysgenesis, and for generating thyroid cells in vitro that might be used for cell-based therapies. Here, we review the principal mechanisms involved in thyroid organogenesis and functional differentiation, highlighting how the thyroid forerunner evolved from the endostyle in protochordates to the endocrine gland found in vertebrates. New findings on the specification and fate decisions of thyroid progenitors, and the morphogenesis of precursor cells into hormone-producing follicular units, are also discussed.
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Affiliation(s)
- Mikael Nilsson
- Sahlgrenska Cancer Center, Institute of Biomedicine, University of Gothenburg, Göteborg SE-40530, Sweden
| | - Henrik Fagman
- Sahlgrenska Cancer Center, Institute of Biomedicine, University of Gothenburg, Göteborg SE-40530, Sweden.,Department of Clinical Pathology and Genetics, Sahlgrenska University Hospital, Göteborg SE-41345, Sweden
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26
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Song H, Lin C, Yao E, Zhang K, Li X, Wu Q, Chuang PT. Selective Ablation of Tumor Suppressors in Parafollicular C Cells Elicits Medullary Thyroid Carcinoma. J Biol Chem 2017; 292:3888-3899. [PMID: 28119454 PMCID: PMC5339769 DOI: 10.1074/jbc.m116.765727] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/23/2017] [Indexed: 12/26/2022] Open
Abstract
Among the four different types of thyroid cancer, treatment of medullary thyroid carcinoma poses a major challenge because of its propensity of early metastasis. To further investigate the molecular mechanisms of medullary thyroid carcinoma and discover candidates for targeted therapies, we developed a new mouse model of medullary thyroid carcinoma based on our CGRPCreER mouse line. This system enables gene manipulation in parafollicular C cells in the thyroid, the purported cells of origin of medullary thyroid carcinoma. Selective inactivation of tumor suppressors, such as p53, Rb, and Pten, in mature parafollicular C cells via an inducible Cre recombinase from CGRPCreER led to development of murine medullary thyroid carcinoma. Loss of Pten accelerated p53/Rb-induced medullary thyroid carcinoma, indicating interactions between pathways controlled by tumor suppressors. Moreover, labeling differentiated parafollicular C cells by CGRPCreER allows us to follow their fate during malignant transformation to medullary thyroid tumor. Our findings support a model in which mutational events in differentiated parafollicular C cells result in medullary thyroid carcinoma. Through expression analysis including RNA-Seq, we uncovered major signaling pathways and networks that are perturbed following the removal of tumor suppressors. Taken together, these studies not only increase our molecular understanding of medullary thyroid carcinoma but also offer new candidates for designing targeted therapies or other treatment modalities.
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Affiliation(s)
- Hai Song
- From the Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China and
- the Cardiovascular Research Institute, University of California, San Francisco, California 94158
| | - Chuwen Lin
- the Cardiovascular Research Institute, University of California, San Francisco, California 94158
| | - Erica Yao
- the Cardiovascular Research Institute, University of California, San Francisco, California 94158
| | - Kuan Zhang
- the Cardiovascular Research Institute, University of California, San Francisco, California 94158
| | - Xiaoling Li
- From the Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China and
| | - Qingzhe Wu
- From the Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China and
| | - Pao-Tien Chuang
- the Cardiovascular Research Institute, University of California, San Francisco, California 94158
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27
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Faour O, Gilloteaux J. Calcitonin: Survey of new anatomy data to pathology and therapeutic aspects. TRANSLATIONAL RESEARCH IN ANATOMY 2017. [DOI: 10.1016/j.tria.2017.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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28
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Paschou SA, Vryonidou A. Origin of Thyroid C Cells: Clinical Interpretation. Eur Thyroid J 2016; 5:278. [PMID: 28101494 PMCID: PMC5216182 DOI: 10.1159/000449464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 08/30/2016] [Indexed: 11/19/2022] Open
Affiliation(s)
| | - Andromachi Vryonidou
- *Andromachi Vryonidou, MD, PhD, Department of Endocrinology and Diabetes, Hellenic Red Cross Hospital, Athanasaki 1, GR–11526 Athens (Greece), E-Mail
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29
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Nilsson M, Williams ED. Medullary Thyroid Carcinoma - Distinction towards Neuroectodermal Tumours: Reply to the Letter by Paschou and Vryonidou. Eur Thyroid J 2016; 5:279-280. [PMID: 28101495 PMCID: PMC5216186 DOI: 10.1159/000450680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Mikael Nilsson
- University of Gothenburg, Göteborg, Sweden
- *Dr. Mikael Nilsson, Sahlgrenska Cancer Center, University of Gothenburg, Box 425, SE–40530 GØteborg (Sweden), E-Mail
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