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Papillary thyroid cancer

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https://www.readbyqxmd.com/read/29351089/aggressive-variants-of-papillary-thyroid-carcinoma-hobnail-tall-cell-columnar-and-solid
#1
Meryl C Nath, Lori A Erickson
Papillary thyroid carcinomas are the most common endocrine cancer and are usually associated with good survival. However, some variants of papillary thyroid carcinomas may behave more aggressively than classic papillary thyroid carcinomas. The tall cell variant of papillary thyroid carcinoma is the most common aggressive variant of papillary thyroid carcinoma. The aggressive behavior has been ascribed to the histologic subtype and/or to the clinicopathologic features, an issue that remains controversial. The columnar variant of papillary thyroid carcinoma can be aggressive, particularly in older patients, with larger tumors showing a diffusely infiltrative growth pattern and extrathyroidal extension...
January 18, 2018: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/29345728/analytical-performance-of-the-thyroseq-v3-genomic-classifier-for-cancer-diagnosis-in-thyroid-nodules
#2
Marina N Nikiforova, Stephanie Mercurio, Abigail I Wald, Michelle Barbi de Moura, Keith Callenberg, Lucas Santana-Santos, William E Gooding, Linwah Yip, Robert L Ferris, Yuri E Nikiforov
BACKGROUND: Molecular tests have clinical utility for thyroid nodules with indeterminate fine-needle aspiration (FNA) cytology, although their performance requires further improvement. This study evaluated the analytical performance of the newly created ThyroSeq v3 test. METHODS: ThyroSeq v3 is a DNA- and RNA-based next-generation sequencing assay that analyzes 112 genes for a variety of genetic alterations, including point mutations, insertions/deletions, gene fusions, copy number alterations, and abnormal gene expression, and it uses a genomic classifier (GC) to separate malignant lesions from benign lesions...
January 18, 2018: Cancer
https://www.readbyqxmd.com/read/29344210/microrna-335-is-downregulated-in-papillary-thyroid-cancer-and-suppresses-cancer-cell-growth-migration-and-invasion-by-directly-targeting-zeb2
#3
Quan'e Kan, Yong Su, Huihui Yang
MicroRNAs (miRs) are a group of short, endogenous, non-protein-coding and single-stranded RNAs that regulate gene expression by binding to the 3'-untranslated region (3'UTR) of mRNAs, which results in their degradation or translational repression. The aim of the present study was to investigate the expression and function of miR-335 in human papillary thyroid cancer (PTC). Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to quantify the relative miR-335 expression levels in PTC tissues and cell lines...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343651/determining-patient-selection-tool-and-response-predictor-for-outpatient-30-mci-radioiodine-ablation-dose-in-non-metastatic-differentiated-thyroid-carcinoma-a-japanese-perspective
#4
Tetsuya Higuchi, Arifudin Achmad, Duong Duc Binh, Anu Bhattarai, Yoshito Tsushima
The lack of isolation ward throughout Japan has long been limiting the 131I radioactive iodine (RAI) ablation for differentiated thyroid cancer (DTC) cases. The 30 mCi RAI ablation was only recently permitted for outpatient basis. However, no patient selection tool nor response predictor has been proposed. This study evaluated factors to find response predictor and determinant for the suitable patients. The retrospective study reviewed 47 eligible non-metastatic papillary DTC patients whose had first 30 mCi RAI ablation after total thyroidectomy...
January 16, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29342254/distinctive-desmoplastic-3d-morphology-associated-with-brafv600e-in-papillary-thyroid-cancers
#5
M Tarabichi, A Antoniou, S Le Pennec, D Gacquer, N de Saint Aubain, L Craciun, T Cielen, I Laios, D Larsimont, G Andry, J E Dumont, C Maenhaut, V Detours
Context: Although 60% of papillary thyroid carcinomas are BRAFV600E mutant (PTCV600E), the higher aggressiveness of these cancers is still debated. Objective: In PTCV600E we aimed to further characterize the extent of the stroma and its activation, the 3D tumor-stroma interface, and the proliferation rates of tumor and stromal fibroblasts. Design: We analyzed exomes, trancriptomes and images of 364 PTC from The Cancer Genome Atlas (TCGA), including 211 PTCV600E; stained 22 independent PTC for BRAFV600E and Ki67; sequenced the exomes and stained BRAFV600E in 5 primary tumor blocks and 4 nodal metastases from one PTCV600E patient; and reconstructed the 3D volumes of one tumor and one metastatic blocks at histological resolution...
January 12, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29341469/downregulation-of-csn6-attenuates-papillary-thyroid-carcinoma-progression-by-reducing-wnt-%C3%AE-catenin-signaling-and-sensitizes-cancer-cells-to-fh535-therapy
#6
Duo Wen, Tian Liao, Ben Ma, Ning Qu, Rong-Liang Shi, Zhong-Wu Lu, Yu-Long Wang, Wen-Jun Wei, Qing-Hai Ji
The incidence of thyroid cancer has increased worldwide at a rate higher than that of any other cancer. CSN6 is overexpressed in many types of cancers, and such expression is linked to oncogenic activity. However, the detailed biological functions of CSN6 in papillary thyroid cancer (PTC) have not been well characterized. We investigated CSN6 expression in PTC specimens and cell lines. We used short-hairpin RNA-mediated gene silencing to explore the biological effects of CSN6 depletion in PTC cells. The combined effects of CSN6 silencing and FH535 therapy were assessed in terms of cell viability...
January 17, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29340905/expression-of-vhl-tumor-suppressor-mrna-and-mir-92a-in-papillary-thyroid-carcinoma-and-their-correlation-with-clinical-and-pathological-parameters
#7
Lidija Todorović, Boban Stanojević, Vesna Mandušić, Nina Petrović, Vladan Živaljević, Ivan Paunović, Aleksandar Diklić, Vladimir Saenko, Shunichi Yamashita
A growing body of evidence suggests a role of the von Hippel-Lindau (VHL) tumor suppressor gene in the progression of papillary thyroid carcinoma (PTC). Our previous study of VHL in PTCs showed that lower VHL expression was associated with aggressive tumor features, but we found no evidence for VHL downregulation through common genetic or epigenetic modifications. Several studies pointed to a role of microRNA-92a (miR-92a) in the regulation of VHL expression in different cancers. In the present study, we examined the expression levels of VHL mRNA and miR-92a in 42 pairs of PTCs and matched non-tumor thyroid tissues by means of quantitative RT-PCR...
January 16, 2018: Medical Oncology
https://www.readbyqxmd.com/read/29338082/racial-ethnic-differences-in-thyroid-cancer-incidence-in-the-united-states-2007-2014
#8
Kristin S Weeks, Amanda R Kahl, Charles F Lynch, Mary E Charlton
BACKGROUND: Small tumor diagnostic tools including ultrasound-guided fine needle aspiration (FNA) and computed tomography (CT) could be causing rising and racially/ethnically different thyroid cancer incidence rates due to variable overdiagnosis of indolent tumors. Papillary tumors and <40 mm tumors are most likely to be overdiagnosed as indolent tumors by FNA and CT. METHODS: Age-adjusted incidence rates (AAIRs) for the years 2007-2014 were calculated for race/ethnicity (white, Hispanic, Asian, African American, Native American) by patient/tumor characteristics for microscopically confirmed malignant thyroid cancer cases in the Surveillance, Epidemiology, and End Results Program 18 database (SEER 18; N = 93,607)...
January 16, 2018: Cancer
https://www.readbyqxmd.com/read/29336760/cancer-frequency-in-retrosternal-goiter
#9
Nuri A Sahbaz, Firat Tutal, Nihat Aksakal, Sami Acar, Kadir I Aksu, Umut Barbaros, Yesim Erbil
Retrosternal goiter prevalence is 5 to 40 per cent according to classifications in goiter series. Goiters with mediastinal extension were reported to be related with higher cancer rates. In our study, we aimed to investigate whether cancer incidence increased in retrosternal goiters compared with the cervical ones. Three hundred and ninety consecutive patients, who had surgery because of retrosternal goiter in Istanbul University Medical Faculty Department of General Surgery between 2005 and 2015 were included in the study (Group 1)...
December 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/29331886/anti-cancer-effects-of-hnha-and-lenvatinib-by-the-suppression-of-emt-mediated-drug-resistance-in-cancer-stem-cells
#10
Yong Sang Lee, Seok-Mo Kim, Bup-Woo Kim, Ho Jin Chang, Soo Young Kim, Cheong Soo Park, Ki Cheong Park, Hang-Seok Chang
Anaplastic thyroid cancer (ATC) constitutes less than 2% of total thyroid cancers but accounts for 20-40% of thyroid cancer-related deaths. Cancer stem cell drug resistance represents a primary factor hindering treatment. This study aimed to develop targeted agents against thyroid malignancy, focusing on individual and synergistic effects of HNHA (histone deacetylase), lenvatinib (FGFR), and sorafenib (tyrosine kinase) inhibitors. Patients with biochemically and histologically proven papillary thyroid cancer (PTC) and ATC were included...
January 11, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29331885/autonomously-hyperfunctioning-cystic-nodule-harbouring-thyroid-carcinoma-case-report-and-literature-review
#11
Maria João Lima, Virgínia Soares, Pedro Koch, Artur Silva, António Taveira-Gomes
INTRODUCTION: Hyperthyroidism is rarely associated with malignancy, but it cannot rule out thyroid cancer. Although there is published data describing this coexistence, thyroid carcinomas inside autonomously functioning nodules are uncommon. PRESENTATION OF CASE: A 49-year-old woman presented with a cervical mass, unexplained weight loss and anxiousness, sweating and insomnia. On physical examination, she had a palpable left thyroid nodule. Thyroid function tests showed suppressed TSH (<0,1 uUI/mL), thyroxine 1,44 ng/dL (normal range 0,70-1,48) and triiodothyronine 4,33 pg/mL (normal range 1,71-3,71)...
January 8, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29328463/construction-and-investigation-of-lncrna-associated-cerna-regulatory-network-in-papillary-thyroid-cancer
#12
Yangjing Zhao, Hui Wang, Chengjiang Wu, Meina Yan, Haojie Wu, Jingzhe Wang, Xinxin Yang, Qixiang Shao
Increasing evidence has experimentally proved the competitive endogenous RNA (ceRNA) hypothesis that long non-coding RNA (lncRNA) can affect the expression of RNA targets by competitively combining microRNA (miRNA) via miRNA response elements. However, an extensive ceRNA network of thyroid carcinoma in a large cohort has not been evaluated. We analyzed the RNAseq and miRNAseq data of 348 cases of primary papillary thyroid cancer (PTC) patients with clinical information downloaded from The Cancer Genome Atlas (TCGA) project to search for potential biomarkers or therapeutic targets...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29327301/lncrna-gas8-as1-inhibits-cell-proliferation-through-atg5-mediated-autophagy-in-papillary-thyroid-cancer
#13
Yuan Qin, Wei Sun, Hao Zhang, Ping Zhang, Zhihong Wang, Wenwu Dong, Liang He, Ting Zhang, Liang Shao, Wenqian Zhang, Changhao Wu
PURPOSE: The long non-coding RNA GAS8 antisense RNA 1 (lncRNA GAS8-AS1) is a tumor suppressor in papillary thyroid cancer (PTC), but the mechanisms underlying how GAS8-AS1 regulates PTC biology remain unclear. Here, we evaluated the molecular function of GAS8-AS1 in regulating autophagy in PTC cell lines. METHODS: GAS8-AS1 was overexpressed and knocked down in PTC cell lines by transfecting with expression plasmids or short interfering RNAs (siRNAs). Cell proliferation was evaluated using the Cell Counting Kit-8 (CCK-8)...
January 11, 2018: Endocrine
https://www.readbyqxmd.com/read/29325506/clinical-impact-of-detectable-antithyroglobulin-antibodies-below-the-reference-limit-borderline-in-patients-with-papillary-thyroid-carcinoma-with-negative-serum-thyroglobulin-and-neck-ultrasonography-after-ablation-a-prospective-study
#14
Marina Carvalho, Pedro Weslley Rosario, Gabriela Franco Mourão, Luis Fernando Faria Oliveira, Maria Regina Calsolari
BACKGROUND: Interference of antithyroglobulin antibodies (TgAb) with serum thyroglobulin (Tg) can occur even at detectable TgAb concentrations below the reference limit (borderline TgAb). Thus, borderline TgAb is considered positive TgAb in patients with thyroid cancer. This prospective study evaluated patients with papillary thyroid carcinoma with negative Tg and neck ultrasonography (US) after initial therapy and compared tumor persistence/recurrence and long-term Tg and TgAb behavior in those with borderline versus undetectable TgAb...
January 12, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29324909/effect-of-hypoparathyroid-on-bone-mineral-density-of-lumber-spine-in-postmenopausal-women-with-differentiated-thyroid-cancinoma
#15
Yongli Bai, Yanlei Huo, Fei Yu, Danyang Wang, Chao Ma
OBJECTIVE: To investigate the effect of hypoparathyroid on bone mineral density in postmenopausal women with differentiated thyroid carcinoma (DTC). SUBJECT AND METHODS: Postmenopausal women with postoperative DTC, and undergoing thyroid residual ablation or for metastases treatment were collected and followed for two years. They were divided into hypoparathyroid group (PTH<15pg/mL) and a normal cognitive group (PTH>15pg/mL). Bone mineral density (BMD) at the lumbar spine was analyzed using dual-energy X-ray absorptiometry (DXA) at baseline, 6, 12 and 24 months...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29324353/dietary-habits-during-the-2-months-following-the-chernobyl-accident-and-differentiated-thyroid-cancer-risk-in-a-population-based-case-control-study
#16
Constance Xhaard, Carole Rubino, Vincent Souchard, Stéphane Maillard, Yan Ren, Françoise Borson-Chazot, Geneviève Sassolas, Claire Schvartz, Marc Colonna, Brigitte Lacour, Anne Sophie Woronoff, Michel Velten, Emilie Marrer, Laurent Bailly, Eugènia Mariné Barjoan, Martin Schlumberger, Vladimir Drozdovitch, Andre Bouville, Jacques Orgiazzi, Elisabeth Adjadj, Florent de Vathaire
BACKGROUND: The Chernobyl nuclear power plant accident occurred in Ukraine on April 26th 1986. In France, the radioactive fallout and thyroid radiation doses were much lower than in highly contaminated areas. However, a number of risk projections have suggested that a small excess in differentiated thyroid cancer (DTC) might occur in eastern France due to this low-level fallout. In order to investigate this potential impact, a case-control study on DTC risk factors was started in 2005, focusing on cases who were less than 15 years old at the time of the Chernobyl accident...
January 8, 2018: Cancer Epidemiology
https://www.readbyqxmd.com/read/29321094/expression-and-function-of-long-noncoding-rna-nonhsat129183-in-papillary-thyroid-cancer
#17
Jian Ding, Fuqing Wang, Tiangang Xiang, Meng Qiao
The aberrant expression of long noncoding RNAs (lncRNAs) is implicated in cancer development and progression. This study aimed to investigate the expression and clinical significance of lncRNA NONHSAT129183 in papillary thyroid cancer (PTC), and explore its roles in PTC cell proliferation, migration, and invasion. Our results demonstrate that lncRNA NONHSAT129183 is upregulated in human PTC tissues when compared with that in adjacent noncancerous thyroid tissue. Moreover, its expression is correlated with tumor size, lymph node metastasis, and TNM stage in PTC patients...
January 10, 2018: Oncology Research
https://www.readbyqxmd.com/read/29320754/characteristics-of-cribriform-morular-variant-of-papillary-thyroid-carcinoma-in-post-chernobyl-affected-region
#18
Alfred King-Yin Lam, Mikhail Fridman
The aim is to study the characteristics of cribriform morular variant of papillary thyroid carcinoma (CMV-PTC) in patients living in radiation-affected area of Belarus. The clinical and pathological features of 35 patients with CMV-PTC from Belarus were studied and compared with those of conventional papillary thyroid carcinoma diagnosed in the same period. The patients with CMV-PTC were all females and were younger at presentation (mean age = 24) than those with conventional papillary thyroid carcinoma. Familial adenomatous polyposis (FAP) was identified in 20% of the patients with CMV-PTC...
January 7, 2018: Human Pathology
https://www.readbyqxmd.com/read/29319165/long-noncoding-rna-neat1-regulate-papillary-thyroid-cancer-progression-by-modulating-mir-129-5p-klk7-expression
#19
Hong Zhang, Yuechang Cai, Li Zheng, Zhanlei Zhang, Xiaofeng Lin, Ningyi Jiang
PURPOSE: Considering the dilemma in papillary thyroid cancer treatment, this study intended to find solution in molecular respect. By probing into lncRNA-NEAT1/miR-129-5p/ KLK7 interaction, this study would provide new targets for future treatment. METHODS: Microarray analysis and R language package were applied to select possible lncRNA and miRNA. Luciferase reporter assay and RNA pull-down test were employed in the detection of target relationship between lncRNA and miRNA...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29317955/pattern-of-thyroid-lesions-in-western-region-of-saudi-arabia-a-retrospective-analysis-and-literature-review
#20
Muhammad I Saeed, Amal Ali Hassan, Muhammad Ejaz Butt, Khalid Ali Baniyaseen, Muhammad I Siddiqui, Neda M Bogari, Faisal A Al-Allaf, Mohiuddin M Taher
Background: Ultrasonography (US) is being recognized as a traditional way of the diagnosis of various thyroid disorders, and this will help in detecting the thyroid tumors in early stage. Thyroid nodules are common and usually benign; steps to diagnose malignancy should include a careful clinical evaluation, laboratory tests, a thyroid US exam and a fine-needle aspiration (FNA) biopsy. Methods: A total of 173 registered cases were used for analysis in this study...
February 2018: Journal of Clinical Medicine Research
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