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https://www.readbyqxmd.com/read/28933615/role-of-dicer1-in-thyroid-cell-proliferation-and-differentiation
#1
Ricardo Cortez Cardoso Penha, Romina Sepe, Marco De Martino, Francesco Esposito, Simona Pellecchia, Maddalena Raia, Luigi Del Vecchio, Myriam Decaussin-Petrucci, Gabriella De Vita, Luis Felipe Ribeiro Pinto, Alfredo Fusco
DICER1 plays a central role in the biogenesis of microRNAs and it is important for normal development. Altered microRNA expression and DICER1 dysregulation have been described in several types of tumors, including thyroid carcinomas. Recently, our group identified a new somatic mutation (c.5438A>G; E1813G) within DICER1 gene of an unknown function. Herein, we show that DICER1 is overexpressed, at mRNA level, in a significant-relative number of papillary (70%) and anaplastic (42%) thyroid carcinoma samples, whereas is drastically downregulated in all the analyzed human thyroid carcinoma cell lines (TPC-1, BCPAP, FRO and 8505c) in comparison with normal thyroid tissue samples...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28932970/computed-tomography-features-of-the-major-salivary-glands-after-radioactive-iodine-ablation-in-patients-with-papillary-thyroid-carcinoma
#2
Dong Wook Kim
OBJECTIVE: No previous study has investigated computed tomography (CT) features of the major salivary glands (MSGs) after postoperative radioactive iodine ablation (RIA). This study aimed to assess CT features of the MSGs after RIA in patients with papillary thyroid carcinoma (PTC). METHODS: The study population comprised consecutively registered PTC patients who had undergone total thyroidectomy, RIA, follow-up neck ultrasonography (US), and neck CT. The US and CT features of the parotid and submandibular glands in each patient were retrospectively evaluated by a single radiologist...
September 20, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28932277/a-retrospective-review-of-the-multidisciplinary-management-of-medullary-thyroid-cancer-eligibility-for-systemic-therapy
#3
Georgia Geller, Janessa Laskin, Winson Y Cheung, Cheryl Ho
BACKGROUND: Medullary thyroid carcinoma (MTC) accounts for 1-2% of all thyroid cancers. The clinical course of metastatic disease can be indolent. Our aim was to characterize the natural history of disease to evaluate the true proportion of patients who would be eligible for the currently available systemic therapies. METHODS: The British Columbia Cancer Agency (BCCA) provides cancer care to a population of 4.6 million. A retrospective chart review was conducted of all patients with MTC referred to the BCCA from 1991 to 2013...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28932042/small-cell-neuroendocrine-carcinoma-of-the-paranasal-sinus-with-intraoral-involvement-report-of-a-rare-case-and-review-of-the-literature
#4
Anita Spadigam, Anita Dhupar, Shaheen Syed, Shruti U Nagvekar
The diffuse neuroendocrine system continues to be an enigmatic topic of study in pathology due to its controversial embryologic origins, biology and a variety of tumors engendered. Originally thought to be localized to the classic neuroendocrine organs (pituitary, thyroid, pancreas and adrenal medulla), the neuroendocrine cells are now known to be distributed in every organ system of the body. A number of human diseases have been linked to aberrations in the functioning of the neuroendocrine cells. Neoplasms of the neuroendocrine system can thus occur in myriad primary sites and range in behavior from benign to lethal...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28931560/ret-mediated-modulation-of-tumour-microenvironment-and-immune-response-in-men2
#5
Maria Domenica Castellone, Rosa Marina Melillo
Medullary thyroid carcinomas (MTC) arise from thyroid parafollicular, calcitonin-producing C-cells and can occur either as sporadic or as hereditary diseases in the context of familial syndromes, including multiple endocrine neoplasia 2A (MEN2A), multiple endocrine neoplasia 2B (MEN2B) and familial MTC (FMTC). In a large fraction of sporadic cases, and virtually in all inherited cases of MTC, activating point mutations of the RET proto-oncogene are found. RET encodes for a receptor tyrosine kinase protein endowed with transforming potential on thyroid parafollicular cells...
September 20, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28931215/berberine-could-inhibit-thyroid-carcinoma-cells-by-inducing-mitochondrial-apoptosis-g0-g1-cell-cycle-arrest-and-suppressing-migration-via-pi3k-akt-and-mapk-signaling-pathways
#6
Liang Li, Xingchun Wang, Rampersad Sharvan, Jingyang Gao, Shen Qu
Berberine, an important natural isoquinoline alkaloid from traditional Chinese medicine, is reported to exhibit multiple pharmacological properties, including anti-microbial, anti-diabetes, anti-obesity, anti-inflammatory and anti-carcinogenic activities. Although studies have shown that a wide range of carcinoma cells could be inhibited by berberine, few studies involved thyroid carcinoma. We therefore examined the effect of berberine on papillary thyroid carcinoma (PTC, the most common subtype) and anaplastic thyroid carcinoma (ATC, the most malignant and aggressive subtype)...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28930844/health-related-quality-of-life-assessment-in-surgical-patients-with-papillary-thyroid-carcinoma-a-single-center-analysis-from-mainland-china
#7
Juxiang Gou, Wenjie Cheng, Jianyong Lei, Qian Pan, Wei You, Ming Cai, Huairong Tang, Yali Lei, Zhihui Li, Rixiang Gong, Jinqiang Zhu
Even with a favorable prognosis, the health-related quality of life (HRQoL) of papillary thyroid carcinoma (PTC) patients remains unclear and conflicting. Thus, in the present study, we compared the HRQoL of PTC patients with that of the general population (GP).The study was performed in our thyroid and parathyroid surgery department, and 186 PTC patients who had undergone thyroidectomy were included. The exclusion criteria were an age < 18 years, no follow-up, and the presence of other malignant neoplasms...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28929017/calcitonin-receptor-expression-in-medullary-thyroid-carcinoma
#8
Virginia Cappagli, Catarina Soares Potes, Luciana Bueno Ferreira, Catarina Tavares, Catarina Eloy, Rossella Elisei, Manuel Sobrinho-Simões, Peter J Wookey, Paula Soares
BACKGROUND: Calcitonin expression is a well-established marker for medullary thyroid carcinoma (MTC); yet the role of calcitonin receptor (CTR), its seven-transmembrane G-protein coupled receptor, remains to be established in C-cells derived thyroid tumors. The aim of this work was to investigate CTR expression in MTC and to correlate such expression with clinicopathological features in order to evaluate its possible role as a prognostic indicator of disease aggressiveness and outcome...
2017: PeerJ
https://www.readbyqxmd.com/read/28928994/foxe1-mutation-screening-in-a-case-with-cleft-lip-hypothyroidism-and-thyroid-carcinoma-a-new-syndrome
#9
Hugo Mendieta-Zerón, Angélica Jiménez-Rosales, Carlos Jhovani Pérez-Amado, Silvia Jiménez-Morales
A 26-year-old woman is referred to the Internal Medicine consultation due to increases in laboratory studies associated with Papillary Thyroid Carcinoma (PTC) that was confirmed by histopathological studies. Her clinical history revealed that, at 3 months of age, she was successfully treated with surgery for cleft lip (CL) and at the age of 24 years was diagnosed with hypothyroidism. Single nucleotide polymorphisms (SNPs) in FOXE1 and its promoter regions have been associated with various etiologies related to the thyroid, including orofacial clefting, specially cleft palate (CP) and CL, hypothyroidism (HT), and thyroid cancer...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28928829/braf-v600e-mutation-contributes-papillary-thyroid-carcinoma-and-hashimoto-thyroiditis-with-resistance-to-thyroid-hormone-a-case-report-and-literature-review
#10
Wanjia Xing, Xiaohong Liu, Qingqing He, Zongjing Zhang, Zhaoshun Jiang
Resistance to thyroid hormone (RTH) is a rare autosomal hereditary disorder characterized by increased serum thyroid hormone (TH) levels with unsuppressed or increased thyrotropin concentration. It remains unknown whether the coexistence of RTH with papillary thyroid carcinoma (PTC) and Hashimoto thyroiditis (HT) is incidental or whether it possesses a genetic or pathophysiological association. In the present study, a case of RTH with PTC and HT in an 11-year-old Chinese patient was examined and the clinical presentation of RTH with PTC was discussed...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927353/recurrent-metastatic-medullary-thyroid-carcinoma-a-case-of-sustained-response-to-prolonged-treatment-with-somatostatin-analogues
#11
Juana María Cano, Rocío Galán, Rafael López
BACKGROUND: Medullary thyroid carcinoma (MTC) is a rare disease. Treatment options for recurrent disease are limited. Somatostatin analogues might have a role as anticancer agents agents in MTC, although the evidence is inconclusive. PATIENT FINDINGS: A 64-year old male was diagnosed with MTC in January 2010. Total thyroidectomy with neck dissection (stage IVA, pT2pN1bM0, R1) was performed, followed by adjuvant locoregional radiotherapy. Two years later, the patient developed recurrent metastatic disease evidenced by elevated carcinoembryonic antigen (CEA) and calcitonin levels, and a positive uptake (Octreoscan®) in the right adrenal gland and pancreatic head...
September 19, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28927164/hyalinizing-clear-cell-carcinoma-of-the-lung-case-report-and-review-of-the-literature
#12
Susanne K Jeffus, Jerad M Gardner, Matthew A Steliga, Akeesha A Shah, Edward B Stelow, Konstantinos Arnaoutakis
Objectives: Hyalinizing clear cell carcinoma (HCCC) is common in head and neck sites but extremely rare in the lung. This case report describes an HCCC in the lung of a 54-year-old female patient. Methods: We summarize the histomorphologic, immunophenotypic, and molecular features for our and three previously reported HCCCs of the lung with emphasis on potential diagnostic pitfalls. Results: Sections of a well-circumscribed 3.5-cm lung mass were characterized by a bronchocentric tumor growing in sheets, nests, and cords in a background of hyalinized stroma...
July 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28927140/itraq-coupled-2d-lc-ms-ms-analysis-of-cxcr7-transfected-papillary-thyroid-carcinoma-cells-a-new-insight-into-cxcr7-regulation-of-papillary-thyroid-carcinoma-progression-and-identification-of-potential-biomarkers
#13
Hengwei Zhang, Lei Yang, Zhangyi Liu, Chenxi Liu, Xuyong Teng, Lei Zhang, Bo Yin, Zhen Liu
Previous studies have demonstrated that C-X-C chemokine receptor type 7 (CXCR7) regulates papillary thyroid carcinoma (PTC) growth and metastasis; however, the molecular mechanisms underlying this regulation remain unclear. In the present study, the protein expression profiles of the PTC cell line GLAG-66 and GLAG-66 cells stably transfected with CXCR7 cDNA were analyzed and compared using isobaric tag for relative and absolute quantification-coupled two-dimensional liquid chromatography-tandem mass spectrometry...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927096/laptm4b-2-allele-is-associated-with-the-development-of-papillary-thyroid-carcinoma-in-chinese-women
#14
Yue Meng, Rouli Zhou, Jianjun Xu, Qingyun Zhang
Lysosome-associated protein transmembrane 4-β (LAPTM4B) contains a polymorphic region that contributes to the increased risk of numerous types of tumor. However, no study has yet demonstrated an association between the expression of the LAPTM4B gene and tumor differentiation, and the reason that LAPTM4B polymorphisms affect the susceptibility of individuals to cancer remains to be elucidated. The present study assessed the possible association between LAPTM4B polymorphism and the risk of papillary thyroid carcinoma (PTC), and attempted to identify the underlying mechanism for variation in patient susceptibility with respect to transcription regulation in the polymorphism region...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927041/anastomosis-in-the-absence-of-a-suprahyoid-release-following-circumferential-sleeve-resection-is-feasible-in-differentiated-thyroid-carcinoma-patients-with-tracheal-invasion
#15
Wanjun Chen, Shujuan Zou, Liang Wang, Changhua Wu, Zhiqi Wang, Ke Li, Shuguang Zhang
Invasion of the trachea is observed in ~6% of patients with differentiated thyroid carcinoma (DTC), and surgery is accepted as the treatment of choice. However, surgical procedures can be challenging and are associated with various risks. The authors of the present study performed a retrospective study of patients with DTC and tumor invasion of the trachea. Outcomes from patients that received circumferential sleeve resection (CSR) of the trachea followed by anastomosis in the absence of suprahyoid release (n=21; CSR group) and patients that underwent tangential resections [n=103; tangential 'shave' resection (TSR) group) were analyzed...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28925363/generation-of-an-induced-pluripotent-stem-cell-line-from-a-patient-with-hereditary-multiple-endocrine-neoplasia-2b-men2b-syndrome-with-highest-risk-ret-mutation
#16
A Bennaceur-Griscelli, J Hadoux, O Féraud, P Opolon, D Divers, E Gobbo, M Schlumberger, F Griscelli, A G Turhan
Multiple Endocrine Neoplasia Type 2B (MEN2B) is a cancer-predisposing syndrome that affects patients with germline RET mutations. The clinical spectrum of the syndrome includes medullary thyroid carcinoma (MTC) and pheochromocytoma. Currently, there is no satisfactory model recapitulating all the features of the disease especially at the level of stem cells. We generated induced pluripotent stem cells (iPSCs) from a patient with RET mutation at codon 918 who developed pheochromocytoma and MTC. These iPSC had normal karyotype, harboured the RET(M918T) mutation and expressed pluripotency hallmarks...
August 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28924477/a-new-paradigm-in-low-risk-papillary-microcarcinoma-active-surveillance
#17
Alex González Bóssolo, Michelle Mangual Garcia, Paula Jeffs González, Miosotis Garcia, Guillermo Villarmarzo, Jose Hernán Martinez
Classical papillary thyroid microcarcinoma (PTMC) is a variant of papillary thyroid carcinoma (PTC) known to have excellent prognosis. It has a mortality of 0.3%, even in the presence of distance metastasis. The latest American Thyroid Association guidelines state that although lobectomy is acceptable, active surveillance can be considered in the appropriate setting. We present the case of a 37-year-old female with a history of PTMC who underwent surgical management consisting of a total thyroidectomy. Although she has remained disease-free, her quality of life has been greatly affected by the sequelae of this procedure...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28923670/warthin-like-variant-of-thyroid-papillary-carcinoma
#18
Pedro Antonio Sánchez Fuentes, Antonio Ríos, José Manuel Rodríguez
No abstract text is available yet for this article.
September 15, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28923027/aesthetic-principles-access-thyroidectomy-produces-the-best-cosmetic-outcomes-as-assessed-using-the-patient-and-observer-scar-assessment-scale
#19
Xiao Ma, Qi-Jun Xia, Guojun Li, Tian-Xiao Wang, Qin Li
BACKGROUND: Thyroid carcinoma (TC) is more likely to occur in young women. The aim of this study was to compare the aesthetic effect of different thyroidectomies. METHODS: One hundred twenty female patients who underwent thyroidectomy were evenly distributed into three groups: conventional access (CA), aesthetic principles access (APA) and minimally invasive access (MIA). The Patient and Observer Scar Assessment Scale (POSAS) was used as the assessment tool for the linear scar...
September 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28921623/one-step-synthesis-of-18-f-cabozantinib-for-use-in-positron-emission-tomography-imaging-of-c-met
#20
Vegard Torp Lien, Jo Klaveness, Dag Erlend Olberg
Cabozantinib is an FDA approved kinase inhibitor for the treatment of medullary thyroid cancer and advanced renal cell carcinoma, which exerts its therapeutic effect by inhibiting, among others, the tyrosine kinase c-Met. Non-invasive imaging techniques are becoming increasingly important clinically to ensure drug efficacy, staging, monitoring and patient stratification. PET isotope labelled tyrosine kinase inhibitors have, for the same reason, potential as PET tracers for imaging of various cancers. Based on cabozantinib, we synthesized the novel boronic acid pinacol ester 4 as a labelling precursor, where the boronic ester moiety replaces the fluorine native to this kinase inhibitor...
September 18, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
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