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Chen W, Wang S, Wei D, Zhai L, Liu L, Pan C, Han Z, Liu H, Zhong W, Jiang X. LncRNA ZFAS1 promotes invasion of medullary thyroid carcinoma by enhancing EPAS1 expression via miR-214-3p/UCHL1 axis. J Cell Commun Signal 2024; 18:e12021. [PMID: 38946718 PMCID: PMC11208124 DOI: 10.1002/ccs3.12021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 07/02/2024] Open
Abstract
lncRNA ZFAS1 was identified to facilitate thyroid cancer, but its role in medullary thyroid carcinoma (MTC) remains unknown. This study aimed to unravel the potential function of this lncRNA in MTC by investigating the involvement of the lncRNA ZFAS1 in a ceRNA network that regulates MTC invasion. Proliferation, invasion, and migration of cells were evaluated using EdU staining and Transwell assays. Immunoprecipitation (IP) assays, dual-fluorescence reporter, and RNA IP assays were employed to examine the binding interaction among genes. Nude mice were used to explore the role of lncRNA ZFAS1 in MTC in vivo. ZFAS1 and EPAS1 were upregulated in MTC. Silencing ZFAS1 inhibited MTC cell proliferation and invasion under hypoxic conditions, which reduced EPAS1 protein levels. UCHL1 knockdown increased EPAS1 ubiquitination. ZFAS1 positively regulated UCHL1 expression by binding to miR-214-3p. Finally, silencing ZFAS1 significantly repressed tumor formation and metastasis in MTC. LncRNA ZFAS1 promotes invasion of MTC by upregulating EPAS1 expression via the miR-214-3p/UCHL1 axis.
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Affiliation(s)
- Wenjing Chen
- Department of PathologyQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Shaoqing Wang
- Pathology of Qiqihar Medical CollegeQiqiharHeilongjiang ProvinceChina
| | - Dongmei Wei
- Department of Science and EducationQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Lili Zhai
- Department of PathologyQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Li Liu
- Department of CT RadiologyQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Chunlei Pan
- Department of General SurgeryQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Zhongshu Han
- Department of Critical Care MedicineQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Huiming Liu
- Department of PathologyQiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Wei Zhong
- Qiqihar First HospitalQiqiharHeilongjiang ProvinceChina
| | - Xin Jiang
- Department of OrthopaedicsThird Affiliated Hospital of Qiqihar Medical CollegeQiqiharHeilongjiang ProvinceChina
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Zhang D, Colombo C, Sun H, Kim HY, Pino A, De Leo S, Gazzano G, Persani L, Dionigi G, Fugazzola L. Unilateral Surgery for Medullary Thyroid Carcinoma: Seeking for Clinical Practice Guidelines. Front Endocrinol (Lausanne) 2022; 13:875875. [PMID: 35898450 PMCID: PMC9309363 DOI: 10.3389/fendo.2022.875875] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
Optimized preoperative diagnostic tools with calcitonin tests, ultrasound features, functional imaging modalities, and genetic testing to detect hereditary forms have led to an increased rate of earlier diagnosis and surgery for medullary thyroid cancer (MTC). This helps to adapt the primary surgery to the tumor stage and avoid surgical overtreatment for localized tumor growth, i.e., deviating from the regularly recommended thyroidectomy with bilateral central lymph node dissection in favor of a limited unilateral approach. To limit primary surgical therapy, it is crucial that the MTC is clinically unifocal, sporadic, and confined to the thyroid, and that calcitonin levels indicate biochemical recovery after surgery. The main requirement for such a limited approach is the availability of frozen section studies that reliably indicate (i) R0 resection of the MTC, (ii) absence of infiltration of the organ capsule, (iii) lack of desmoplasia (i.e., evidence of the metastatic potential of the MTC), (iiii) absence of contralateral disease or precancerous lesions. Informed consent is mandatory from the patient, who has been fully informed of the advantages, disadvantages, and potential risks of not undergoing the "classic" surgical procedure. The aim of this article is to review the guidelines for the management of early-stage MTC.
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Affiliation(s)
- Daqi Zhang
- Division of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Jilin Provincial Engineering Laboratory of Thyroid Disease Prevention and Control, Changchun City, China
| | - Carla Colombo
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- *Correspondence: Carla Colombo, ; Hui Sun,
| | - Hui Sun
- Division of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Jilin Provincial Engineering Laboratory of Thyroid Disease Prevention and Control, Changchun City, China
- *Correspondence: Carla Colombo, ; Hui Sun,
| | - Hoon Yub Kim
- Korea University College of Medicine (KUMC) Thyroid Center, Department of Surgery, Korea University Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Antonella Pino
- Division of Surgery, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
- Department of Human Pathology of Adulthood and Childhood, University of Messina, Messina, Italy
| | - Simone De Leo
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
| | - Giacomo Gazzano
- Pathology Unit, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Luca Persani
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Gianlorenzo Dionigi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Division of Surgery, Istituto Auxologico Italiano INstituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Laura Fugazzola
- Division of Endocrine and Metabolic Diseases, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Abu-Bonsrah KD, Newgreen DF, Dottori M. Development of Functional Thyroid C Cell-like Cells from Human Pluripotent Cells in 2D and in 3D Scaffolds. Cells 2021; 10:cells10112897. [PMID: 34831120 PMCID: PMC8616516 DOI: 10.3390/cells10112897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/19/2022] Open
Abstract
Medullary thyroid carcinoma contributes to about 3–4% of thyroid cancers and affects C cells rather than follicular cells. Thyroid C cell differentiation from human pluripotent stem cells has not been reported. We report the stepwise differentiation of human embryonic stem cells into thyroid C cell-like cells through definitive endoderm and anterior foregut endoderm and ultimobranchial body-like intermediates in monolayer and 3D Matrigel culture conditions. The protocol involved sequential treatment with interferon/transferrin/selenium/pyruvate, foetal bovine serum, and activin A, then IGF-1 (Insulin-like growth factor 1), on the basis of embryonic thyroid developmental sequence. As well as expressing C cell lineage relative to follicular-lineage markers by qPCR (quantitative polymerase chain reaction) and immunolabelling, these cells by ELISA (enzyme-linked immunoassay) exhibited functional properties in vitro of calcitonin storage and release of calcitonin on calcium challenge. This method will contribute to developmental studies of the human thyroid gland and facilitate in vitro modelling of medullary thyroid carcinoma and provide a valuable platform for drug screening.
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Affiliation(s)
- Kwaku Dad Abu-Bonsrah
- The Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC 3010, Australia
- Correspondence: (K.D.A.-B.); (D.F.N.); (M.D.)
| | - Donald F. Newgreen
- The Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, VIC 3052, Australia
- Correspondence: (K.D.A.-B.); (D.F.N.); (M.D.)
| | - Mirella Dottori
- Department of Biomedical Engineering, Department of Anatomy and Neurosciences, University of Melbourne, Parkville, VIC 3010, Australia
- Illawarra Health and Medical Research Institute, School of Medicine, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
- Correspondence: (K.D.A.-B.); (D.F.N.); (M.D.)
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Chen L, Zhao K, Li F, He X. Medullary Thyroid Carcinoma With Elevated Serum CEA and Normal Serum Calcitonin After Surgery: A Case Report and Literature Review. Front Oncol 2020; 10:526716. [PMID: 33194586 PMCID: PMC7653021 DOI: 10.3389/fonc.2020.526716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 10/06/2020] [Indexed: 12/26/2022] Open
Abstract
Background Medullary thyroid carcinoma (MTC) is a relatively rare malignant tumor subtype originated the parafollicular C cells of the thyroid gland, producing tumor markers including calcitonin (Ctn), carcinoembryonic antigen (CEA), and chromogranin A. Preoperative serum Ctn and CEA value is important for assessing disease burden, postoperative serum Ctn and CEA can help to determine whether there are recurrence and distant metastasis. Case Presentation We report a rare case in which the CEA level continued to increase and the Ctn value was normal after total thyroidectomy and central lymph node dissection in a MTC patient. The patient was asymptomatic during one and half year follow-up until lateral lymph node metastasis was revealed. However, the CEA level raised again after lateral neck lymph node dissection and bone metastases were found by 18F-FDG PET-CT. Conclusion This case reminded us the recurrence of MTC should be suspected for patients with simply elevated CEA after surgery for MTC. Differential diagnosis of other malignant tumors and timely lymph node biopsy is of great significance for management.
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Affiliation(s)
- Li Chen
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Ke Zhao
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Fuxin Li
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
| | - Xianghui He
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China
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Lu F, Chen X, Bai Y, Feng Y, Wu J. A large Chinese pedigree of multiple endocrine neoplasia type 2A with a novel C634Y/D707E germline mutation in RET exon 11. Oncol Lett 2017; 14:3552-3558. [PMID: 28943896 PMCID: PMC5592869 DOI: 10.3892/ol.2017.6583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 03/17/2017] [Indexed: 11/24/2022] Open
Abstract
The present study identified the clinical features of the largest multiple endocrine neoplasia type 2 (MEN2) A pedigree from China, with a novel double missense rearranged during transfection (RET) mutation (C634Y/D707E). To the best of our knowledge, the D707E mutation has not been identified to date. In the present study, a total of 101 family members who originated from a large pedigree (134 members in total) underwent RET mutation screening by next-generation sequencing and polymerase chain reaction (PCR) amplification, followed by direct bidirectional DNA sequencing. The clinical features of this pedigree were carefully reviewed retrospectively, and statistical analyses were conducted using SPSS software. A total of 33 (32.67%) carriers were identified to exhibit the C634Y/D707E RET germline mutation. The mean age of the patients with medullary thyroid carcinoma (MTC) identified by RET screening was 38.4±16.5 years (n=11; range, 14–65 years). Only 4 patients with pheochromocytoma with a median age of 37 years were identified. No hyperparathyroidism was diagnosed. Persistent or recurrent disease developed in the patients of the present study who underwent inappropriate initial thyroid surgeries that were performed in previous decades (III10, III23, III24, III27 and IV46, as they had undergone two surgeries prior to the present study). A total of 66.70% (6/9) of patients, following thyroidectomy, continued to develop persistent or recurrent disease during the present screening study. In total, 3 patients succumbed to MTC or distant metastasis in the present study. The increase in carcinoembryonic antigen (CEA) levels correlated with the increase in basal serum calcitonin (Ct) levels according to Pearson correlation analysis in patients with MTC without surgery. Ct and CEA levels were also significantly correlated with tumor volumes. To the best of our knowledge, the present study is the first to identify a novel double RET missense mutation in the largest MEN2A pedigree from China. Additional in-depth study is necessary to elucidate the molecular mechanisms of the D707E mutation and its potential joint effects with the other C634Y mutation in the pedigree of the present study.
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Affiliation(s)
- Fanqian Lu
- Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China.,Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing 100005, P.R. China
| | - Xiaohong Chen
- Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China.,Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing 100005, P.R. China
| | - Yunlong Bai
- Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China.,Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing 100005, P.R. China
| | - Yaru Feng
- Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China.,Key Laboratory of Otolaryngology, Head and Neck Surgery, Ministry of Education, Beijing Institute of Otolaryngology, Beijing 100005, P.R. China
| | - Jian Wu
- MyGenostics, Inc., Beijing 101318, P.R. China
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Nozhat Z, Hedayati M. Medullary thyroid carcinoma: a review on ethical considerations in treatment of children. J Pediatr Endocrinol Metab 2016; 29:633-9. [PMID: 26974132 DOI: 10.1515/jpem-2015-0309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 11/30/2015] [Indexed: 12/21/2022]
Abstract
Thyroid carcinoma is the most common malignancy of the endocrine system and it accounts approximately 1%-3% of all human cancers. Among the three subtypes of thyroid cancers, medullary thyroid carcinoma (MTC) is the most common cause of death in patients with multiple endocrine neoplasia (MEN) type 2A (MEN2A), MEN type 2B (MEN2B) and familial medullary thyroid carcinoma (FMTC). Generally, MTC accounts for up to 10% of all types of thyroid cancers. It is one of the aggressive forms of thyroid carcinoma which is manifested in childhood ages more than adults, and it comprises about 17% of all pediatric thyroid cancer. Like the other cancers, prevention of MTC is easier than its cure. In the recent decades (from 1993) the diagnosis of asymptomatic child carrying RET mutations in the affected families by MTC, has been provided by genetic screening, and prophylactic thyroidectomy is an efficacy therapeutic procedure. On the one hand, according to near the complete penetrance of the disease and its onset in the early years of life, it is required to accelerate the protection of at-risk children with relative affected by MTC and on the other hand, there are several obstructions to MTC treatment including: 1) the proband's refusal to disclose the RET mutation genetic testing results, 2) children's vulnerability because of their inability to participate in the informed consent, and 3) the existence of conflict between physicians and children's guardian. In this review article, the recommendations and ethical issues of MTC treatment in asymptomatic and at-risk children have been summarized.
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7
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Ramirez AT, Gibelli B, Tradati N, Giugliano G, Zurlo V, Grosso E, Chiesa F. Surgical management of thyroid cancer. Expert Rev Anticancer Ther 2014; 7:1203-14. [PMID: 17892421 DOI: 10.1586/14737140.7.9.1203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Thyroid cancer is the most common endocrine neoplasm; however, it only accounts for less than 1% of all human malignances. Thyroid cancers are divided into well differentiated and non-well differentiated cancers, according to their histology and behavior. The surgical management options of well-differentiated thyroid cancer include total or near-total thyroidectomy, subtotal thyroidectomy and lobectomy plus isthmusectomy. The extent of surgery for thyroid cancer continues to be an area of controversy. Complications associated with thyroid surgery are directly proportional to the extent of thyroidectomy and inversely proportional to the experience of the operating surgeon. They occur less frequently with good surgical technique and better understanding of surgical anatomy, and include wound healing and infections (seroma, hematoma and wound infection), nerve injury, hypoparathyroidism, hypothyroidism, postoperative hemorrhage and respiratory obstruction.
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Affiliation(s)
- Adonis T Ramirez
- University Hospital Neiva Colombia, General Surgery Department, Colombia.
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8
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Vázquez-Román V, Utrilla JC, Fernández-Santos JM, Conde E, Bernabé R, Sampedro C, Martín-Lacave I. Postnatal fate of the ultimobranchial remnants in the rat thyroid gland. J Morphol 2013; 274:725-32. [PMID: 23355409 DOI: 10.1002/jmor.20126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/28/2012] [Accepted: 12/18/2012] [Indexed: 11/08/2022]
Abstract
The ultimobranchial follicles (UBFs) are considered embryonic remnants from the ultimobranchial body (UBB). They are follicular structures that vary in size and appearance depending on the age of the rat. The main objective of this article was to study the progressive changes in shape, size, and frequency of the UBFs in the postnatal rat, from birth to old-age. To accomplish that objective, a systematic morphometric and incidental study of the UBF has been carried out in 110 Wistar rats of different ages and both sexes, divided into three groups: 1) young rats (5-90-day-old); 2) adult rats (6-15-month-old), and 3) old rats (18-24-month-old). The glands were serially sectioned and immunostained for calcitonin at five equidistant levels. According to our results, UBFs were observed in all thyroid glands but a more exhaustive sampling was occasionally necessary in male rats. In young rats, immature UBFs predominantly appeared whereas in adult rats, mature UBFs with cystic appearance and variable luminal content prevailed. We frequently found spontaneous anomalous UBFs in old rats, which we have termed as "ultimobranchial cystadenomata." Additionally, in young rats, UBF areas significantly increased with age and they were larger when compared to that of normal thyroid follicles. Likewise, in adult rats, UBFs were significantly larger than normal thyroid follicles but only in female rats. In general, UBFs in females were also significantly larger than those found in male rats. Finally, all these differences related to UBFs together with a higher incidence in females of UB cystadenomata suggest a sexual dimorphism in regard to the destiny of these embryonic remnants during postnatal thyroid development.
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Affiliation(s)
- Victoria Vázquez-Román
- Department of Normal and Pathological Cytology and Histology, School of Medicine, University of Seville, Spain
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9
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Börcek P, Asa SL, Gentili F, Ezzat S, Kiehl TR. Brain metastasis from medullary thyroid carcinoma. BMJ Case Rep 2010; 2010:2010/dec21_1/bcr0920103301. [PMID: 22802478 DOI: 10.1136/bcr.09.2010.3301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The brain is an exceedingly rare site of metastasis in medullary thyroid carcinoma (MTC). A 50-year-old female who had a history of micro-MTC 11 years prior developed a cerebellar metastasis which was incidentally discovered. Imaging revealed a right cerebellar hemispheric mass with contrast enhancement on CT scans. Histopathologic exam demonstrated a metastatic tumour composed of nodules and sheets of large tumour cells with abundant cytoplasm. Immunohistochemistry confirmed the origin from a MTC. This case report highlights the unique features of an unusual metastatic brain tumour, which followed an indolent course for a long time despite multiple distant metastases.
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Affiliation(s)
- P Börcek
- Department of Pathology, Batman Regional State Hospital, Batman, Turkey
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10
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Skoura E, Rondogianni P, Alevizaki M, Tzanela M, Tsagarakis S, Piaditis G, Tolis G, Datseris IE. Role of [(18)F]FDG-PET/CT in the detection of occult recurrent medullary thyroid cancer. Nucl Med Commun 2010; 31:567-75. [PMID: 20335822 DOI: 10.1097/mnm.0b013e3283384587] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Many patients with medullary thyroid carcinoma (MTC) have persistently elevated calcitonin levels after initial treatment, indicating disease recurrence. Conventional imaging is often negative or shows equivocal findings. In this study we report our experience with 2-deoxy-2-[(18)F]fluoro-D-glucose positron emission tomography/computed tomography ([(18)F]FDG-PET/CT) in the evaluation of this specific group. METHODS Between February 2007 and May 2009, 38 [(18)F]FDG-PET/CT scans were performed on 32 patients with MTC and elevated calcitonin levels for localization of recurrent disease. Six of these patients had a second [(18)F]FDG-PET/CT scan. RESULTS Among the 38 [(18)F]FDG-PET/CT scans there were 18 positive and 20 negative scans. Out of the 18 positive scans, 17 were true positive and one false positive. These findings suggest that [(18)F]FDG-PET/CT provides additional information in almost half of all cases (overall per patient sensitivity of 47.4%) but using a serum calcitonin cut-off of 1000 pg/ml this rate is increased to 80%. An interesting finding of the study was that none of the six patients with multiple endocrine neoplasia type IIA syndrome had a positive [(18)F]FDG-PET/CT scan for MTC. When these patients were excluded, the overall per patient sensitivity rose to 60% and in patients with calcitonin levels >1000 pg/ml this rate increased to 100%. The mean SUV(max) of all lesions showing [(18)F]FDG uptake was 3.96 + or - 1.61 (range, 2-7). CONCLUSION [(18)F]FDG-PET/CT seems to be valuable for the detection of recurrence in patients with highly elevated calcitonin levels and negative conventional imaging findings. In addition, it seems that the sensitivity of [(18)F]FDG-PET/CT may be higher in patients with sporadic or familial MTC than in patients with MTC as part of multiple endocrine neoplasia type IIA syndrome.
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Affiliation(s)
- Evangelia Skoura
- Department of Nuclear Medicine, Evangelismos Hospital, Athens, Greece.
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11
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Riley LB, Desai DC. The molecular basis of cancer and the development of targeted therapy. Surg Clin North Am 2009; 89:1-15, vii. [PMID: 19186227 DOI: 10.1016/j.suc.2008.09.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The sequencing of the human genome and the ability to rapidly identify genes and proteins, both normal and mutant, that are involved in tumorigenesis and malignant phenotypes, have changed the ability to understand malignant cells. Understanding and applying this information to the diagnosis and treatment of cancer are facilitated best with a multidisciplinary team. The cancer surgeon plays a pivotal role in this team. This article briefly summarizes: (1) the clinically relevant applications of molecular biology to the cancer surgeon, (2) the current understanding of the molecular basis for cancer, and (3) the current targeted agents and their clinical applications.
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Affiliation(s)
- Lee B Riley
- St. Luke's Hospital and Health Network, 801 Ostrum Street, Bethlehem, PA 18015, USA.
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12
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Dionigi G, Bacuzzi A, Bertocchi V, Carrafiello G, Boni L, Rovera F, Dionigi R. Prospectives and surgical usefulness of perioperative parathyroid hormone assay in thyroid surgery. Expert Rev Med Devices 2009; 5:699-704. [PMID: 19025346 DOI: 10.1586/17434440.5.6.699] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hypocalcemia is the most frequent complication after thyroid surgery. The incidence varies and has been reported as ranging from 1.2 to 40%. Permanent hypoparathyroidism occurs in less than 3% of patients, whereas transient postoperative hypocalcemia is much more common. Postoperative hypoparathyroidism is traditionally detected by serial measurement of serum calcium concentrations and requires multiple venepunctures and, potentially, several days of hospitalization following the procedure. The parathyroid hormone (PTH) molecule is a polypeptide composed of an 84-amino acid sequence with an active amino terminal on one end and an inactive carboxyl unit on the other. Measurement of the intact PTH (iPTH) is an accurate representation of the true parathyroid state. In recent years, iPTH assay has been under investigation for thyroid surgery in many centers as an early iPTH measurement may be of value for prediction of postoperative symptomatic hypocalcemia, guiding the surgeon for parathyroid autotransplatation, and selection of patients requiring onset of calcium substitution or safe discharge home. This paper reviews the relevant medical literature published regarding the influence of PTH assay technology on the quality of thyroid surgery, as well as on the prevention of postoperative symptomatic hypocalcemia. Searches were last updated in April 2008.
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Affiliation(s)
- Gianlorenzo Dionigi
- Center of Endocrine Surgery, Department of Surgical Sciences, University of Insubria, Azienda Ospedaliero-Universitario, Fondazione Macchi, Varese, Italy.
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13
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Current World Literature. Curr Opin Otolaryngol Head Neck Surg 2008; 16:175-82. [DOI: 10.1097/moo.0b013e3282fd9415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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