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Papillary thyroid

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https://www.readbyqxmd.com/read/27920554/next-generation-sequence-detects-arap3-as-a-novel-oncogene-in-papillary-thyroid-carcinoma
#1
Qing-Xuan Wang, En-Dong Chen, Ye-Feng Cai, Yi-Li Zhou, Zhou-Ci Zheng, Ying-Hao Wang, Yi-Xiang Jin, Wen-Xu Jin, Xiao-Hua Zhang, Ou-Chen Wang
PURPOSE: Thyroid cancer is the most frequent malignancies of the endocrine system, and it has became the fastest growing type of cancer worldwide. Much still remains unknown about the molecular mechanisms of thyroid cancer. Studies have found that some certain relationship between ARAP3 and human cancer. However, the role of ARAP3 in thyroid cancer has not been well explained. This study aimed to investigate the role of ARAP3 gene in papillary thyroid carcinoma. METHODS: Whole exon sequence and whole genome sequence of primary papillary thyroid carcinoma (PTC) samples and matched adjacent normal thyroid tissue samples were performed and then bioinformatics analysis was carried out...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27920093/metformin-reduces-glycometabolism-of-papillary-thyroid-carcinoma-in-vitro-and-in-vivo
#2
Chen-Tian Shen, Wei-Jun Wei, Zhong-Ling Qiu, Hong-Jun Song, Xin-Yun Zhang, Zhen-Kui Sun, Quan-Yong Luo
More aggressive thyroid cancer cells show a higher activity of glycometabolism. Targeting cancer cell metabolism has emerged as a novel approach to prevent or treat malignant tumors. Glucose metabolism regulation effect of metformin in papillary thyroid cancer was investigated in the current study. Human papillary thyroid carcinoma (PTC) cell lines BCPAP and KTC1 were used. Cell viability was detected by CCK8 assay. Glucose uptake and relative gene expression were measured in metformin (0-10 mM for 48 h)-treated cells by (18)F-FDG uptake assay and western blotting analysis, respectively...
January 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/27919446/immunohistochemistry-as-an-accurate-tool-for-evaluating-braf-v600e-mutation-in-130-samples-of-papillary-thyroid-cancer
#3
Zakaria Y Abd Elmageed, Andrew B Sholl, Koji Tsumagari, Zaid Al-Qurayshi, Fulvio Basolo, Krzysztof Moroz, A Hamid Boulares, Paul Friedlander, Paulo Miccoli, Emad Kandil
BACKGROUND: BRAF(V600E) mutation has been investigated by immunohistochemistry and has shown high sensitivity and specificity. We aim to investigate the accuracy of immunohistochemistry versus molecular testing of BRAF(V600E) in papillary thyroid cancer using a large number of polymerase chain reaction-positive BRAF(V600E) papillary thyroid cancer tissues. METHODS: We stained 130 formalin-fixed papillary thyroid cancer specimens using the VE1 antibody: 100 BRAF(V600E) positive and 30 BRAF(V600E) negative confirmed by PCR...
December 2, 2016: Surgery
https://www.readbyqxmd.com/read/27917827/the-n14-anti-afamin-antibody-fab-a-rare-vl1-cdr-glycosylation-crystallographic-re-sequencing-molecular-plasticity-and-conservative-versus-enthusiastic-modelling
#4
Andreas Naschberger, Barbara G Fürnrohr, Tihana Lenac Rovis, Suzana Malic, Klaus Scheffzek, Hans Dieplinger, Bernhard Rupp
The monoclonal antibody N14 is used as a detection antibody in ELISA kits for the human glycoprotein afamin, a member of the albumin family, which has recently gained interest in the capture and stabilization of Wnt signalling proteins, and for its role in metabolic syndrome and papillary thyroid carcinoma. As a rare occurrence, the N14 Fab is N-glycosylated at Asn26L at the onset of the VL1 antigen-binding loop, with the α-1-6 core fucosylated complex glycan facing out of the L1 complementarity-determining region...
December 1, 2016: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/27917722/racial-disparities-in-papillary-thyroid-microcarcinoma-survival
#5
U C Megwalu, A T Saini
OBJECTIVE: To evaluate the impact of race on survival in patients with papillary thyroid microcarcinoma. METHODS: The study cohort included 17 668 patients diagnosed with papillary thyroid microcarcinoma between 1988 and 2009, identified in the Surveillance, Epidemiology, and End Results 18 database of the National Cancer Institute. RESULTS: Black patients had lower overall survival than other racial groups (p < 0.001). Black patients had significantly worse overall survival (hazard ratio = 2...
December 5, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27914217/hla-g-3-untranslated-region-polymorphic-sites-associated-with-increased-hla-g-production-are-more-frequent-in-patients-exhibiting-differentiated-thyroid-tumors
#6
Nathalie Lobo de Figueiredo-Feitosa, Gustavo Martelli Palomino, Daiani Cristina Cilião Alves, Celso Teixeira Mendes Junior, Eduardo Antonio Donadi, Léa Maria Zanini Maciel
BACKGROUND: HLA-G is a non-classical class I histocompatibility molecule implicated on the immune escape mechanism of tumor cells. We evaluated the genetic diversity of HLA-G 3' untranslated region (3'UTR) and associated polymorphic sites with clinical presentation and with the magnitude of HLA-G thyroid expression. PATIENTS AND METHODS: Polymorphic sites at 3'UTR (14bpINS/DEL, +3003C/T, +3010C/G, +3027A/C, +3035C/T, +3142C/G, +3187A/G, +3196C/G) were characterized by sequencing analyses in blood samples of 72 patients exhibiting papillary thyroid carcinoma (PTC), 22 follicular thyroid carcinomas (FTC), 19 follicular adenomas (FA), 21 colloid goiters and 156 healthy controls...
December 2, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27913945/the-effect-of-prophylactic-central-neck-dissection-on-locoregional-recurrence-in-papillary-thyroid-cancer-after-total-thyroidectomy-a-systematic-review-and-meta-analysis-pcnd-for-the-locoregional-recurrence-of-papillary-thyroid-cancer
#7
Wenjing Zhao, Lei You, Xianming Hou, Shaobo Chen, Xiaoxia Ren, Ge Chen, Yupei Zhao
BACKGROUND: The use of prophylactic central neck dissection (pCND) for papillary thyroid cancer (PTC) without clinical evidence of nodal metastasis (cN0) remains controversial. This study was designed to examine whether pCND for PTC affected locoregional recurrence (LRR). METHODS: A systematic review was performed to compare the LRR between patients with PTC who underwent total thyroidectomy (TT) and pCND and those who underwent TT alone. The primary outcome was LRR...
December 2, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27911099/nuclear-morphometric-findings-in-undetermined-cytology-a-possible-clue-for-prediction-of-braf-mutation-in-papillary-thyroid-carcinomas
#8
Sevdegul Mungan, Safak Ersoz, Ismail Saygin, Zeynep Sagnak, Umit Cobanoglu
PURPOSE: To investigate the possible relationship between the nuclear morphometric characteristics (nuclear perimeter, roundness, nuclear area, and nuclear shape) and BRAF mutation status in papillary thyroid carcinoma cases with a prior diagnosis of undetermined cytology. MATERIALS AND METHODS: Total thyroidectomy specimens obtained from 48 patients with papillary thyroid carcinoma with a prior diagnosis of undetermined cytology were included. Morphometric analysis under light microscopy included measurements of the perimeter, shape factor, nuclear area, and roundness of thyrocyte nuclei from the cytological smear preparations...
December 2, 2016: Endocrine Research
https://www.readbyqxmd.com/read/27906682/nonhsat076754-aids-ultrasonography-in-predicting-lymph-node-metastasis-and-promotes-migration-and-invasion-of-papillary-thyroid-cancer-cells
#9
Shujun Xia, Chuandong Wang, Xiaofeng Ni, Zhongxin Ni, Yijie Dong, Weiwei Zhan
Lymph node metastasis (LNM) is the primary challenge in papillary thyroid cancer (PTC). Recurrent cancerous lymph nodes require repeated surgeries, which increases the risk for surgical complications. Thus, the evaluation of LNM before surgery is important. Ultrasonography is the most convenient way to examine cervical LNM, but the sensitivity of ultrasonography in the identification of LNM in cases of PTC is extremely low. A series of lncRNAs (long noncoding RNAs) have been reported as candidate biomarkers in a variety of tumors...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27904772/mir-101-targets-usp22-to-inhibit-the-tumorigenesis-of-papillary-thyroid-carcinoma
#10
Huadong Zhao, Haili Tang, Qike Huang, Bo Qiu, Xiaomin Liu, Dong Fan, Li Gong, Hang Guo, Chong Chen, Shixiong Lei, Lu Yang, Jianguo Lu, Guoqiang Bao
Increasing evidence suggests that microRNA-101 (miR-101) is involved in the progression of various human cancers, including papillary thyroid carcinoma (PTC). However, the biological functions of miR-101 and underlying molecular mechanisms in PTC remain largely unknown. In this study, we demonstrated that miR-101 underexpression in PTC tissue was associated with lymph node metastasis and poor prognosis of PTC patients. MiR-101 reduced PTC cell proliferation, apoptosis resistance, and invasion. Ubiquitin-specific protease 22 (USP22) was confirmed as a direct target of miR-101...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27904709/braf-and-epithelial-mesenchymal-transition-in-papillary-thyroid-carcinoma-challenging-the-roles-of-snail-and-e-cadherin
#11
Brendon Mitchell, Dominick Leone, Shi Yang, Ashraf Khan, Meera Mahalingam, Jagdish Dhingra
OBJECTIVE: In papillary thyroid carcinoma (PTC), while the role of BRAF is well established, the contribution of BRAF to epithelial-mesenchymal transition is not. STUDY DESIGN/SETTING: To elucidate the relationship between BRAF, surrogates of epithelial-mesenchymal transition (Snail, E-cadherin) and established histopathologic prognosticators in papillary thyroid carcinoma. SUBJECTS/METHODS: In this IRB approved cross-sectional study, 50 cases of archived annotated PTC samples were retrieved and immunohistochemically stained for Snail and E-cadherin protein...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27904595/cd56-hbme-1-and-cytokeratin-19-expressions-in-papillary-thyroid-carcinoma-and-nodular-thyroid-lesions
#12
Senay Erdogan-Durmus, Deniz Ozcan, Enver Yarikkaya, Ali Kurt, Aynur Arslan
BACKGROUND: Carcinomas of the thyroid follicular epithelium are the most common cancers of the endocrine system. In the diagnosis of thyroid nodules and tumors, the gold standard is histological evaluation. In cases which have morphological overlap, immunohistochemistry is needed for differential diagnosis. The purpose of this study is to investigate the expressions of CD56, HBME-1, cytokeratin 19 (CK19) antibodies in papillary thyroid carcinoma (PTC) and thyroid nodular lesions and their contributions to differential diagnosis...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904567/dual-malignancy-in-adolescence-a-rare-case-report-of-metachronous-papillary-carcinoma-of-thyroid-following-dysgerminoma-of-ovary
#13
Suvadip Chakrabarti, Sanjay M Desai, Dharmendra Y Mehta, Shreyas Somanath
Dual malignancy is rare in adolescents. Dual malignancy with the second malignancy of thyroid is rare. No association has been reported between dysgerminoma of ovary and carcinoma thyroid in medical literature. Despite a thorough PubMed search (key words - Papillary carcinoma of thyroid, metachronous, dysgerminoma ovary), we were unable to find a previous reported case of metachronous papillary carcinoma of thyroid (PTC) following dysgerminoma of the ovary. After surgery, the patient is being regularly followed up for recurrence/development of new primary...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27899250/estrogen-and-thyroid-cancer-is-a-stem-affair-a-preliminary-study
#14
Mariangela Zane, Carmelo Parello, Gianmaria Pennelli, Danyelle M Townsend, Stefano Merigliano, Marco Boscaro, Antonio Toniato, Giovannella Baggio, Maria Rosa Pelizzo, Domenico Rubello, Isabella Merante Boschin
Gender influences Papillary Thyroid Cancer (PTC) with an incidence of 3:1 when comparing women to men with different aggressiveness. This gender discrepancy suggests some role of sex hormones in favoring the malignant progression of thyroid tissue to cancer. Estrogens are known to promote Stem Cell self-renewal and, therefore, may be involved in tumor initiation. The goals of these studies are to investigate the underlying causes of gender differences in PTC by studying the specific role of estrogens on tumor cells and their involvement within the Cancer Stem Cell (CSC) compartment...
November 26, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27896649/the-micropapillary-hobnail-variant-of-papillary-thyroid-carcinoma-a-review-of-series-described-in-the-literature-compared-to-a-series-from-one-southern-italy-pathology-institution
#15
REVIEW
Antonio Ieni, Valeria Barresi, Roberta Cardia, Luana Licata, Flavia Di Bari, Salvatore Benvenga, Giovanni Tuccari
Papillary thyroid carcinoma (PTC) has a good prognosis with a 10-yr survival greater than 90%. Recently, a micro-papillary pattern with hobnail appearance (MPHC) in PTC has been indicated as associated with poor prognosis, but this suggestion is based only on a few cases from geographical areas different from ours. Two-hundred ninety-nine consecutive PTC cases were collected between the years of 1992 and 2014 at our institution. The corresponding histologic sections (at least 6 for each case) were stained with hematoxylin and eosin and reviewed independently by two pathologists to reach a consensus on the identification and quantification of the MPHC...
November 28, 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27895796/promotion-of-metastasis-of-thyroid-cancer-cells-via-nrp-2-mediated-induction
#16
Dom-Gene Tu, Wen-Wei Chang, Ming-Shiou Jan, Chi-Wen Tu, Yin-Che Lu, Chien-Kuo Tai
Tumor-node-metastasis is one of the leading causes of morbidity and mortality in thyroid cancer patients. Upregulation of vascular endothelial growth factor-C (VEGF-C) increases the migratory ability of thyroid cancer cells to lymph nodes. Expression of neuropilin-2 (NRP-2), the co-receptor of VEGF-C, has been reported to be correlated with lymph node metastasis in human thyroid cancer. The present study investigated the role of VEGF-C/NRP-2 signaling in the regulation of metastasis of two different types of human thyroid cancer cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895444/relationship-of-hemoxygenase-1-and-prolidase-enzyme-activity-with-oxidative-stress-in-papillary-thyroid-cancer
#17
D Terzioglu, S Teksoz, A E Arikan, E Uslu, E Yılmaz, B Eren
AIM: Recent studies associate thyroid cancer with oxidative stress. We aim to clarify the relation between papillary thyroid cancer, oxidative stress, hemoxygenase-1, prolidase enzymes and investigate the availability of these enzymes as markers for diagnosis, success of treatment, and follow-up. METHODS: Thirty-one patients with papillary thyroid carcinoma and 25 healthy control subjects were included in this study. Hemoxygenase-1, prolidase (oxidant stress indicator), malondialdehyde, protein carbonyl, and superoxide dismutase (an indicator of antioxidant defense system) were measured pre-operatively and 30 days after thyroidectomy...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27893690/prognosis-of-papillary-thyroid-carcinoma-in-elderly-patients-after-thyroid-resection-a-retrospective-cohort-analysis
#18
Nathalie Chereau, Christophe Trésallet, Severine Noullet, Gaelle Godiris-Petit, Frederique Tissier, Laurence Leenhardt, Fabrice Menegaux
The size of the elderly population and the incidence of papillary thyroid carcinoma (PTC) in this group appear to be rapidly increasing, although published information based on more detailed older age groupings are lacking.This study aimed to determine the clinical features and outcomes of elderly patients in PTC.All consecutive patients who received surgery for PTC in our Department from 1978 to 2014 were included. We compared 3 patient groups: young (<65 years), older (65-75 years), and very old patients (>75 years)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893191/young-investigator-challenge-molecular-testing-in-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features
#19
Xiaoyin Sara Jiang, Grant P Harrison, Michael B Datto
BACKGROUND: Molecular testing provides an important ancillary study for thyroid nodules with indeterminate cytology. The nomenclature shift to "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) will impact the performance of molecular tests. For the current study, the authors reviewed the performance of the Afirma gene-expression classifier (GEC) and the University of Pittsburgh Medical Center (UPMC) targeted mutation panel tests in thyroid nodules that were subsequently diagnosed as NIFTP on surgical resection...
November 28, 2016: Cancer
https://www.readbyqxmd.com/read/27893072/lymph-node-biopsy-in-patients-with-papillary-thyroid-cancer
#20
Mattia Portinari, Paolo Carcoforo
No abstract text is available yet for this article.
November 23, 2016: JAMA Otolaryngology—Head & Neck Surgery
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