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Papillary thyroid

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https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#1
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28643757/significance-of-expression-of-suppressor-of-cytokine-signaling-proteins-suppressor-of-cytokine-signaling-1-suppressor-of-cytokine-signaling-2-and-suppressor-of-cytokine-signaling-3-in-papillary-thyroid-cancer
#2
Toral Pundrik Kobawala, Trupti I Trivedi, Kinjal Kevin Gajjar, Girish H Patel, Nandita R Ghosh
PURPOSE: Uncontrolled cytokine signal transduction largely associated with oncogene activation, can have disastrous biological consequences. The suppressor of cytokine signaling (SOCS) proteins represent one of the mechanisms by which this rampant signaling can be dissipated. Thus, we aimed to study the expression of SOCS-1, SOCS-2, and SOCS-3 in patients having benign thyroid disease and papillary thyroid cancer. MATERIALS AND METHODS: SOCS protein expression was studied in 45 patients with benign thyroid disease and in 83 papillary thyroid cancer patients by immunohistochemistry and their association with clinicopathological characteristics and overall survival in cancer patients were analyzed using SPSS software...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28642790/therapeutic-outcomes-of-patients-with-multifocal-papillary-thyroid-microcarcinomas-and-larger-tumors
#3
Soh-Ching Ng, Sheng-Fong Kuo, Szu-Tah Chen, Chuen Hsueh, Bie-Yu Huang, Jen-Der Lin
A retrospective review of 626 patients with multifocal papillary thyroid carcinoma (PTC) including 147 patients (23.5%) with multifocal papillary thyroid microcarcinoma (PTMC) from a total of 2,536 patients with PTC who visited the Chang Gung Medical Center in Linkou, Taiwan, was performed. A comparison of the clinical features between 626 multifocal and 1,910 solitary PTC cases showed that patients in the multifocal PTC group were older and had a smaller mean tumor size, a more advanced tumor-node-metastasis (TNM) stage, and a higher percentage of nonremission status compared to patients in the solitary PTC group...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28642454/inclusion-body-myositis-a-case-presenting-with-respiratory-failure-and-autopsy-findings-leading-to-the-hypothesis-of-a-paraneoplastic-cause
#4
Christopher Dardis, Ariel Antezana, Kurenai Tanji, Paul J Maccabee
BACKGROUND Sporadic inclusion body myositis (IBM) is the most common acquired myopathy seen in adults aged over 50 years, with a prevalence estimated at between 1 and 70 per million. Weakness of the diaphragm with loss of vital capacity is almost universal in IBM. This is almost always asymptomatic. When respiratory complications occur, they are most often due to aspiration. Respiratory failure due to diaphragmatic weakness is exceptionally rare, particularly as the presenting symptom of the disease. It is not currently considered to be a paraneoplastic syndrome...
June 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28640454/direct-quantification-of-gamma-h2ax-by-cell-based-high-throughput-screening-for-evaluation-of-genotoxicity-of-pesticides-in-a-human-thyroid-cell-lines
#5
Jerome M Hershman, Bryan France, Kevin Hon, Robert Damoiseaux
Genotoxicity is thought to be the cause of many cancers. Genotoxicity due to environmental toxins may be partly responsible for the dramatic increase in the incidence of papillary thyroid cancer over the past two decades. Here, we present a fully automatable assay platform that directly quantifies the phosphorylation of nuclear histone gamma H2AX (γH2AX), a specific cellular marker for DNA double strand breaks (DSBs) via immunohistochemistry and laser scanning cytometry. It multiplexes γH2AX with total cell number measured as propidium iodide and calculates the percentage of cells with DSBs...
June 22, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28639967/ras-positive-thyroid-nodules
#6
Trevor E Angell
PURPOSE OF REVIEW: The current review focuses on the uncertainty regarding the management of rat sarcoma viral oncogene homolog RAS-positive thyroid nodules. The application of oncogene testing has been heralded for improving risk assessment for indeterminate cytology thyroid nodules and has grown in clinical use. RAS mutations are historically considered oncogenic. However, RAS mutation detection in thyroid nodules has proven problematic, as these mutations are found in benign and malignant lesions...
July 20, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28639955/endotracheal-leiomyoma-mimicking-malignancy-on-18f-fdg-pet-ct-in-a-patient-with-papillary-thyroid-carcinoma
#7
Jae Pil Hwang, Seung-Won Lee, Jeong Ja Kwak, Jung Mi Park
Endotracheal leiomyoma is a rare benign lesion, accounting for approximately 1% of tracheal tumors, and generally occurs in the lower respiratory tract. Because its growth causes airway obstruction symptom, surgical treatment is generally suggested after detection. We report a case with leiomyoma of the cervical endotracheal space showing intense FDG uptake on F-FDG PET/CT mimicking malignancy in a 79-year-old woman with papillary thyroid carcinoma.
June 20, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28639308/discovery-of-novel-wtret-and-v804mret-inhibitors-from-hit-to-lead
#8
Luca Mologni, Martina Dalla Via, Adriana Chilin, Manlio Palumbo, Giovanni Marzaro
Oncogenic activation of the RET kinase has been found in several neoplastic diseases, like medullary thyroid carcinoma, multiple endocrine neoplasia, papillary thyroid carcinoma and non-small cells lung cancer. Currently approved RET inhibitors were not originally designed to be RET inhibitors and their potency against RET kinase has not been optimized. Hence, novel compounds able to inhibit both wtRET and its mutants (e.g. V804MRET) are needed. Herein we present the development and the preliminary evaluation of a new sub-micromolar wtRET/V804MRET inhibitor (69) endowed with 4-anilinopyridine structure, starting from our previously identified 4-anilinopyrimidine hit compound...
June 22, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28639242/accuracy-of-fine-needle-cytology-in-histological-prediction-of-papillary-thyroid-carcinoma-variants-a-prospective-study
#9
Anna Cipolletta Campanile, Maria Gabriella Malzone, Nunzia Simona Losito, Gerardo Botti, Maria Grazia Chiofalo, Antongiulio Faggiano, Roberta Siciliano, Annamaria Colao, Luciano Pezzullo, Franco Fulciniti
Fine needle cytology (FNC) is a crucial procedure in the preoperative diagnosis of thyroid tumors. Papillary thyroid carcinoma (PTC), in its classic variant (cPTC), is the most common malignant neoplasm of the thyroid. Several histological variants of PTC have been described, each one with its own characteristics and prognosis. The ability of FNC to identify the variants represents a challenge even for a skilled pathologist. The aim of this study was to evaluate the diagnostic cytological accuracy of FNC in PTC and to look for specific features that could predict the different variants...
June 21, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28636673/evaluation-of-molecular-diagnostic-approaches-for-the-detection-of-braf-p-v600e-mutations-in-papillary-thyroid-cancer-clinical-implications
#10
Artur Kowalik, Aldona Kowalska, Agnieszka Walczyk, Renata Chodurska, Janusz Kopczyński, Magdalena Chrapek, Elżbieta Wypiórkiewicz, Małgorzata Chłopek, Liliana Pięciak, Danuta Gąsior-Perczak, Iwona Pałyga, Krzysztof Gruszczyński, Ewelina Nowak, Stanisław Góźdź
Differentiated papillary thyroid cancer (PTC) is the most common cancer of the endocrine system. PTC has a very good prognosis and a high 5 year survival rate; however, some patients are unresponsive to treatment, and their diagnosis eventually results in death. Recent efforts have focused on searching for prognostic and predictive factors that may enable treatment personalization and monitoring across the course of the disease. The presence of the BRAF mutation is considered to contribute to the risk of poor clinical course, according to American Thyroid Association (ATA) recommendations...
2017: PloS One
https://www.readbyqxmd.com/read/28636557/surgical-management-for-follicular-variant-of-papillary-thyroid-carcinoma
#11
Jianing Tang, Deguang Kong, Lupin Bu, Gaosong Wu
BACKGROUND AND AIMS: For most patients with follicular variant of papillary thyroid carcinoma (FVPTC), surgery is required, while the surgical management remains controversial. We aim to further understanding of treatment of FVPTC and to determine whether specific features could be identified for the decision of surgical strategy. MATERIALS AND METHODS: Data were obtained from the Surveillance, Epidemiology, and End Results (SEER) Program database during 2003 and 2013...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635633/new-insights-in-thyroid-cancer-and-p53-family-proteins
#12
REVIEW
Livia Manzella, Stefania Stella, Maria Stella Pennisi, Elena Tirrò, Michele Massimino, Chiara Romano, Adriana Puma, Martina Tavarelli, Paolo Vigneri
Thyroid cancers are common endocrine malignancies that comprise tumors with different clinical and histological features. Indeed, papillary and follicular thyroid cancers are slow-growing, well-differentiated tumors, whereas anaplastic thyroid cancers are undifferentiated neoplasias that behave much more aggressively. Well-differentiated thyroid carcinomas are efficiently cured by surgery and radioiodine, unlike undifferentiated tumors that fail to uptake radioactive iodine and are usually resistant to chemotherapy...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635216/-ret-ptc-rearrangement-affects-multifocal-formation-of-papillary-thyroid-carcinoma
#13
X Zhang, X Su, W C Chen, Y Li, Z Y Yang, W Z Deng, T C Deng, A K Yang
Objective:RET/PTC gene rearrangement can lead to aberrant activation of tyrosine kinase receptors, which is a common mutation in papillary thyroid carcinoma (PTC). This study focuses on the association of RET/PTC rearrangements with PTC clinical factors. Methods: From January 2011 to December 2013, a total of 114 patients with PTC were enrolled in this study. Clinicopathological parameters, lifestyle, and thyroid hormone levels were collected. RET/PTC rearrangements were detected by TaqMan PCR and verified by Sanger sequencing...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28635215/-retrospective-comparison-of-screening-criteria-for-active-surveillance-for-papillary-thyroid-microcarcinoma
#14
K Qian, T Q Sun, K Guo, X K Zheng, D S Li, W W Wei, Y Wu, Q H Ji, Z Y Wang
Objective: To investigate the rationality of management of active surveillance for papillary thyroid microcarcinoma (PTMC) and the main indications for active surveillance for PTMC. Methods: In this study, two criteria were used to evaluate patients with PTMC: low-risk PTMC conditions defined by Kuma hospital and Chinese Association of Thyroid Oncology (CATO) consensus on PTMC management of active surveillance. The patients had received surgical treatment. Clinicopathological characteristics and prognosis of the patients in different groups were compared...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28635214/-clinicopathological-characteristics-of-papillary-thyroid-microcarcinoma-and-risk-factors-for-central-lymph-node-metastasis
#15
Y L Wu, J M Sun, J J Zhang, Q X Cui, W H Zheng, X R Li
Objective: To analyze the clinicopathological characteristics of papillary thyroid microcarcinoma (PTMC) and risk factors for central lymph node metastasis(CLNM) in PTMC. Methods: The data of 900 patients with PTMC initially treated in our hospital from January 2004 to December 2015 were retrospectively analyzed. Chi-square test and Logistic regression analysis were performed to determine the risk factors for CLNM. Results: CLNM affected 162 (22.9%) of 707 patients treated with central lymph node dissection...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28635213/-risk-factors-for-central-neck-lymph-node-metastases-of-papillary-thyroid-carcinoma
#16
Y S Sun, H J Lyu, Y R Zhao, S S Zhang, Y X Bai, B Y Shi
Objective: To investigate the impact factors for central neck lymph node metastases(CLNM) of papillary thyroid carcinoma(PTC). Methods: A total of 498 patients with PTC who underwent total or hemi-thyroidectomy plus central neck lymph node dissection between January 2014 and July 2016 were included. Univariate and multivariate analyses were performed to identify clinicopathological characteristics, thyroid function parameters and US findings that associated with CLNM of PTC. A nomogram was developed to predict the probability of CLNM...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28635212/-clinical-features-of-postoperative-cervical-lymph-nodes-recurrence-in-papillary-thyroid-carcinoma
#17
Y Y He, B Zhang, Y B Zhang, Z G Xu, P Z Tang
Objective: To analyse the postoperative metastasis or recurrence of cervical lymph nodes in individual neck levels for papillary thyroid carcinoma and to evaluate the outcomes and complications of re-surgery. Methods: A retrospective cohort study of 259 patients who underwent lymph node dissection for PTC relapse from January 2010 to June 2011. Lymph node metastases in each of neck levels were detected, postoperative complications were evaluated, and the patients were followed up with examining thyroglobulin levels to assess the therapeutic effect...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28634282/genomic-alterations-in-fatal-forms-of-non-anaplastic-thyroid-cancer-identification-of-med12-and-rbm10-as-novel-thyroid-cancer-genes-associated-with-tumor-virulence
#18
Tihana Ibrahimpasic, Bin Xu, Iñigo Landa, Snjezana Dogan, Sumit Middha, Venkatraman Seshan, Shyamprasad Deraje Vasudeva, Diane Carlson, Jocelyn Migliacci, Jeffrey A Knauf, Brian R Untch, Michael F Berger, Luc Gt Morris, R Michael Tuttle, Timothy A Chan, James A Fagin, Ronald Ghossein, Ian Ganly
Purpose. Patients with anaplastic thyroid cancer have a very high death rate. In contrast, deaths from non-anaplastic thyroid cancer are much less common. The genetic alterations in fatal non-anaplastic thyroid cancers have not been reported. <p>Experimental Design. We performed next-generation sequencing of 410 cancer genes from 57 fatal non-anaplastic thyroid primary cancers. Results were compared to The Cancer Genome Atlas study (TCGA study) of papillary thyroid cancers (PTC) and to the genomic changes reported in anaplastic thyroid cancer (ATC)...
June 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28633426/atypical-histiocytoid-cells-in-metastatic-papillary-thyroid-carcinoma-an-underrecognized-cytologic-pattern
#19
Mariana Canepa, Tarik M Elsheikh, Debra A Sabo, Ashley M Kolosiwsky, Jordan P Reynolds
Objectives: Fine-needle aspiration (FNA) of head and neck lymph nodes (LNs) is useful in diagnosing metastatic papillary thyroid carcinoma (PTC) and most commonly shows classic cytologic features of PTC. Metastatic PTC, however, may occasionally present with a pattern unfamiliar to most pathologists: atypical histiocytoid cells (AHCs). Methods: All PTC thyroidectomy specimens with associated FNA of LNs were retrieved from our files for 2007 to 2013. We aimed to assess cytologic features of metastatic PTC, as well as the presence of AHCs and their morphology...
June 15, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28631713/-braf-positive-paucicellular-variant-of-anaplastic-carcinoma-in-the-presence-of-tall-cell-variant-papillary-thyroid-cancer
#20
O V Dolzhansky, E M Paltseva, D N Khmelkova, F A Konovalov, I V Kanivets, A V Lavrov, D V Pyankov, S A Korostelev, O A Levendyuk, V M Pominalnaya, D N Fedorov
To paper describes a case of paucicellular anaplastic cancer in the presence of tall cell variant papillary thyroid carcinoma. Microscopic examination showed that the differentiated component of the tumor was composed of papillary structures with tall cells, the height of which exceeded 3-4 times the width. Its anaplastic component consisted of fibrous tissue with occasional spindle-shaped cells and focal lymphocytic infiltration to the extent of 70%. The spindle-shaped cells expressed cytokeratins, β-catenin, p53, and vimentin...
2017: Arkhiv Patologii
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