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Medullary thyroid cancer

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https://www.readbyqxmd.com/read/28540691/expression-of-micrornas-in-thyroid-carcinoma
#1
Gaohong Zhu, Lijun Xie, Daniel Miller
MicroRNA (miRNA) are negative regulators of gene expression and subsequent protein production. This method of action translates into regulatory control over cellular processes, including development, signaling, metabolism, and apoptosis. A broad range of miRNA are shown to have abnormal expressions in thyroid cancers which could explain the pathology of tumor oncogenesis and disease progression. A review is conducted of the current research on miRNA dysregulation in thyroid cancers, including papillary thyroid carcinoma (PTC), follicular thyroid carcinoma (FTC), anaplastic thyroid cancer (ATC), and medullary thyroid carcinoma (MTC)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28506408/genetics-of-medullary-thyroid-cancer-an-overview
#2
REVIEW
Giacomo Accardo, Giovanni Conzo, Daniela Esposito, Claudio Gambardella, Marco Mazzella, Filomena Castaldo, Carlo Di Donna, Andrea Polistena, Nicola Avenia, Vittorio Colantuoni, Dario Giugliano, Daniela Pasquali
Medullary thyroid carcinoma (MTC) represents 3-5% of thyroid cancers. 75% is sporadic and 25% is the dominant component of the hereditary multiple endocrine neoplasia (MEN) type 2 syndromes. Three different subtypes of MEN2, such as MEN2A, MEN2B, and Familial MTC (FMTC) have been defined, based on presence or absence of hyperparathyroidism, pheocromocytoma and characteristic clinical features. Mutations of the RET proto-oncogene are implicated in the pathogenesis of MTC, but there are many other mutational patterns involved...
May 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28493027/clinicopathological-characteristics-of-thyroid-cancer-in-the-federal-state-of-salzburg
#3
Gundula Rendl, Margarida Rodrigues, Gregor Schweighofer-Zwink, Josef Hutter, Anton Hittmair, Barbara Zellinger, Cornelia Hauser-Kronberger, Christian Pirich
OBJECTIVE: The aim of our investigation was to evaluate the clinicopathological characteristics and mutation patterns in newly diagnosed cases of thyroid cancer in the federal state of Salzburg, Austria, in the year 2013. METHODS: The medical records of all patients newly diagnosed with thyroid cancer in 2013 in the federal state of Salzburg were retrospectively reviewed. The clinicopathological characteristics and mutations of thyroid cancers were analyzed. RESULTS: 63 patients (mean age: 51...
May 10, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28476040/efficacy-of-a-hsp90-inhibitor-ganetespib-in-preclinical-thyroid-cancer-models
#4
Shu-Fu Lin, Jen-Der Lin, Chuen Hsueh, Ting-Chao Chou, Chun-Nan Yeh, Ming-Huang Chen, Richard J Wong
Heat shock protein 90 is a molecular chaperon that maintains the correct folding and function of multiple client proteins. The inhibition of heat shock protein 90, which leads to the simultaneous degradation of multiple proteins involved in oncogenic signaling pathways, has revealed an innovative strategy to treat a variety of cancer types. We evaluated the therapeutic effects of ganetespib, a heat shock protein 90 inhibitor, in treating thyroid cancer. Ganetespib effectively inhibited cell proliferation in a dose-dependent manner in eight cell lines originating from four major histologic types of thyroid cancer (papillary, follicular, anaplastic and medullary)...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28471306/salvage-lenvatinib-therapy-in-metastatic-anaplastic-thyroid-cancer
#5
Nicole M Iniguez Ariza, Mabel Ryder, Crystal R Hilger, Keith C Bible
BACKGROUND: Historical anaplastic thyroid cancer (ATC) outcomes have been terrible, with a median survival of only 5 months and <20% 1-year survival. Improved outcomes are now achieved with aggressive initial therapy in stages IVA and IVB disease, but patients with distant metastatic disease (stage IVC) still do poorly; improved therapies are sorely needed. Kinase inhibitors have emerged as promising agents in the therapy of advanced medullary and differentiated thyroid cancer, but there are limited data regarding use of lenvatinib in ATC...
May 4, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28471115/clinical-characteristics-and-treatment-of-thyroid-cancer-in-children-and-adolescents-a-retrospective-analysis-of-83-patients
#6
Xiao-Chun Mao, Wen-Qiao Yu, Jin-Biao Shang, Ke-Jing Wang
OBJECTIVE: To study the clinical characteristics, treatment, and prognosis of thyroid cancer in children and adolescents. METHODS: We performed a retrospective analysis of clinical data from 83 cases of thyroid cancer in children and adolescents from January 1990 to December 2010. We compared extra-thyroid extension, lymph node metastasis, distant metastasis, and prognosis between pediatric patients ≤12 years of age (27 cases) and those >12 years of age (56 cases)...
May 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28460061/population-based-assessment-of-complications-following-surgery-for-thyroid-cancer
#7
Maria Papaleontiou, David T Hughes, Cui Guo, Mousumi Banerjee, Megan R Haymart
Context: As thyroid cancer incidence rises, more patients undergo thyroid surgery. Although post-operative complication rates have been reported in single institution studies, population-based data is limited. Objective: Determine thyroid cancer surgery complication rates and identify at-risk populations. Design/Setting/Patients: Using the Surveillance, Epidemiology, and End Results-Medicare database, we evaluated general complications within 30 days and thyroid surgery specific complications within one year in 27,912 patients who underwent surgery for differentiated or medullary thyroid cancer between 1998-2011...
April 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28454345/high-il-17-expression-is-associated-with-an-unfavorable-prognosis-in-thyroid-cancer
#8
Denise Faria Galano Carvalho, Bruna Riedo Zanetti, Lydianne Miranda, Marcela Kazue Hassumi-Fukasawa, Fabiana Miranda-Camargo, Janaína Cristiana Oliveira Crispim, Edson Garcia Soares
Previous studies have indicated that cancer may be promoted and/or exacerbated by inflammation and infection. The cytokines produced by activated innate immune cells that stimulate tumor growth and progression are considered as important components in this process. The interleukin (IL)-23/T helper (Th)17 axis, which exerts marked pro-inflammatory effects, has emerged as an important mediator in inflammation-associated cancer. Increasing clinical evidence indicates that Th17 may promote or inhibit tumor progression, however, the function of Th17 in the pathogenesis of benign and malignant thyroid neoplasms remains unclear...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453190/synergistic-activity-of-everolimus-and-5-aza-2-deoxycytidine-in-medullary-thyroid-carcinoma-cell-lines
#9
Giovanni Vitale, Alessandra Dicitore, Daniele Pepe, Davide Gentilini, Elisa Stellaria Grassi, Maria Orietta Borghi, Giulia Gelmini, Maria Celeste Cantone, Germano Gaudenzi, Gabriella Misso, Anna Maria Di Blasio, Leo J Hofland, Michele Caraglia, Luca Persani
Medullary thyroid cancer (MTC) is a tumor highly resistant to chemo- and radiotherapy. Drug resistance can be induced by epigenetic changes such as aberrant DNA methylation. To overcome drug resistance, we explored a promising approach based on the use of 5-aza-2'-deoxycytidine (AZA), a demethylating agent, in combination with the mTOR inhibitor everolimus in MTC cells (MZ-CRC-1 and TT). This combined treatment showed a strong synergistic antiproliferative activity through the induction of apoptosis. The effect of everolimus and/or AZA on genome-wide expression profiling was evaluated by Illumina BeadChip in MZ-CRC-1 cells...
April 28, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28443243/association-between-hashimoto-s-thyroiditis-and-thyroid-cancer-in-64-628-patients
#10
Christina Resende de Paiva, Christian Grønhøj, Ulla Feldt-Rasmussen, Christian von Buchwald
BACKGROUND: The incidence of thyroid cancer (TC) is increasing although explanatory causes are lacking. A link between cancer and inflammation is well documented but unclear for autoimmune thyroid diseases and TC. We aimed to systematically review the association between Hashimoto's thyroiditis (HT) and papillary, follicular, medullary, anaplastic thyroid carcinoma, and thyroid lymphoma (TL). METHODS: PubMed, OVID Medline, Google Scholar, and the Cochrane Library were searched from 1955 to 2016...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28441814/-current-situation-and-thinking-of-diagnosis-and-treatment-in-some-types-of-thyroid-cancer
#11
X Y Yang, Y Yu, D P Li, L Dong
As arising incidence of thyroid cancer, the treatment for thyroid carcinoma is becoming increasingly standardized. But there are different opinions on the treatment for some types of thyroid cancers, including the determination of operative opportunity, surgical method, and follow-up observation plan. There are mainly two categories of patients, namely the patients diagnosed as familial thyroid cancer mutation carriers through family screening, including medullary thyroid carcinoma and familial nonmedullary thyroid carcinoma, and the patients with thyroid microcarcinoma that can be observed after diagnosed by fine needle biopsy cytology...
April 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/28439496/bethesda-system-for-reporting-thyroid-cytopathology-a-three-year-study-at-a-tertiary-care-referral-center-in-saudi-arabia
#12
Mohamed Abdulaziz Al Dawish, Asirvatham Alwin Robert, Aljuboury Muna, Alkharashi Eyad, Abdullah Al Ghamdi, Khalid Al Hajeri, Mohammed A Thabet, Rim Braham
AIM: To stratify the malignancy risks in thyroid nodules in a tertiary care referral center using the Bethesda system. METHODS: From January, 2012 to December, 2014, a retrospective analysis was performed among 1188 patients (15-90 years) who had 1433 thyroid nodules and fine-needle aspiration at Prince Sultan Military Medical City, Saudi Arabia. All thyroid cyto-pathological slides and ultra sound reports were reviewed and classified according to the Bethesda System for Reporting Thyroid Cytopathology...
April 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28438782/incidence-and-prevalence-of-multiple-endocrine-neoplasia-2b-in-denmark-a-nationwide-study
#13
Jes Sloth Mathiesen, Jens Peter Kroustrup, Peter Vestergaard, Mette Madsen, Kirstine Stochholm, Per Løgstrup Poulsen, Åse Krogh Rasmussen, Ulla Feldt-Rasmussen, Sten Schytte, Henrik Baymler Pedersen, Christoffer Holst Hahn, Jens Bentzen, Mette Gaustadnes, Torben Falck Ørntoft, Thomas van Overeem Hansen, Finn Cilius Nielsen, Kim Brixen, Anja Lisbeth Frederiksen, Christian Godballe
Extract: Multiple endocrine neoplasia 2B (MEN2B) is an autosomal dominant inherited cancer syndrome associating medullary thyroid carcinoma (MTC), pheochromocytoma (PHEO), ganglioneuromatosis of the aerodigestive tract and facial, ophthalmologic and skeletal abnormalities. MEN2B is caused by the M918T and A883F mutation of the REarranged during Transfection (RET) proto-oncogene in approximately 95% and <5% of cases, respectively. Only very few other mutations have been reported to cause MEN2B. In approximately 75% of MEN2B patients, mutations occur as de novo (Wells, et al...
April 24, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28435794/cushing-disease-in-a-patient-with-multiple-endocrine-neoplasia-type-2b
#14
Kannan Kasturi, Lucas Fernandes, Martha Quezado, Mary Eid, Leigh Marcus, Prashant Chittiboina, Mark Rappaport, Constantine A Stratakis, Brigitte Widemann, Maya Lodish
CONTEXT: Multiple endocrine neoplasia type 2B (MEN2B) is a rare autosomal-dominant cancer syndrome characterized in part by metastatic medullary thyroid cancer (MTC) and pheochromocytoma. Cushing disease is a rare cause of endogenous hypercortisolism in children. CASE DESCRIPTION: We describe a 21-year-old African-American male who was diagnosed at age 10 with an ACTH-secreting pituitary microadenoma. At age 16 he developed medullary thyroid cancer and was found to have multiple endocrine neoplasia type 2B with the characteristic M918T mutation of the RET proto-oncogene...
June 2017: J Clin Transl Endocrinol Case Rep
https://www.readbyqxmd.com/read/28430650/the-p-g534e-variant-of-habp2-is-not-associated-with-sporadic-papillary-thyroid-carcinoma-in-a-polish-population
#15
Artur Kowalik, Danuta Gąsior-Perczak, Martyna Gromek, Monika Siołek, Agnieszka Walczyk, Iwona Pałyga, Małgorzata Chłopek, Janusz Kopczyński, Ryszard Mężyk, Aldona Kowalska, Stanisław Góźdź
Thyroid cancer is one of the most frequently diagnosed cancers of the endocrine system. There are no known genetic risk factors for non-medullary thyroid cancer, other than a small number of hereditary syndromes; however, approximately 5% of non-medullary thyroid cancer, designated familial non-medullary thyroid cancer, exhibits heritability. The p.G534E (c.1601G>A) variant of HABP2 was recently reported as a risk factor for familial non-medullary thyroid cancer, including papillary thyroid carcinoma. We analyzed the incidence of the c...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428267/association-of-nf%C3%AE%C2%BAb-polymorphisms-with-clinical-outcome-of-non-medullary-thyroid-carcinoma
#16
Theo S Plantinga, Mirela Petrulea, Marije Oosting, Leo Joosten, Doina Piciu, Jan Wa Smit, Romana T Netea-Maier, Carmen Georgescu
The NF-κB inflammatory pathway plays a major role in cancer development and clinical progression. Activation of NF-κB signaling is promoted by NFKB1 and inhibited by NFKBIA. The present study aimed to determine the relevance of NFKB1 rs4648068 and NFKBIA rs2233406 genetic variants for non-medullary thyroid cancer (NMTC) susceptibility, progression and clinical outcome. This case-control and cohort study consists of a Romanian discovery cohort (157 patients, 258 controls) and a Dutch validation cohort (138 patients, 188 controls)...
April 20, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28420659/very-low-expression-of-pd-l1-in-medullary-thyroid-carcinoma
#17
Massimo Bongiovanni, Caterina Rebecchini, Chiara Saglietti, Jean-Luc Bulliard, Laura Marino, Laurence De Leval, Gerasimos P Sykiotis
Monoclonal antibodies that inhibit the interaction between PD1 and PD-L1 are approved for clinical use in several cancer types, and they are also in clinical trials for additional indications, including thyroid carcinomas. A few papers have reported on PD-L1 expression in thyroid carcinomas, including a recent large study by Ahn et al. in Endocrine-Related Cancer using tissue microarrays on differentiated and anaplastic thyroid carcinoma. However, the expression of PD-L1 in medullary thyroid carcinoma (MTC) has not been reported so far, even though ongoing clinical studies aim to test the effectiveness of checkpoint inhibitors in this rare histotype as well...
April 18, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28409442/surgical-management-of-medullary-thyroid-carcinoma
#18
REVIEW
Agathoklis Konstantinidis, Michael Stang, Sanziana A Roman, Julie Ann Sosa
Medullary thyroid cancer (MTC) is a malignant tumor of the parafollicular C cells of the thyroid and comprises only 1-2% of all thyroid cancer cases. Unlike most differentiated thyroid cancer, MTC is associated with a mean survival of 8.6 years and accounts for a disproportionate 8.6% of thyroid cancer deaths. Surgery is the mainstay of treatment for loco-regional disease and the only current means of cure for MTC. The relatively low incidence of MTC has made the comprehensive study of this disease difficult and most research to date has been based largely on single institution, retrospective, and/or non-randomized studies...
April 13, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28404916/expression-of-hif-1%C3%AE-in-medullary-thyroid-cancer-identifies-a-subgroup-with-poor-prognosis
#19
Lutske Lodewijk, Paul van Diest, Petra van der Groep, Natalie Ter Hoeve, Abbey Schepers, Johannes Morreau, Johannes Bonenkamp, Adriana van Engen-van Grunsven, Schelto Kruijff, Bettien van Hemel, Thera Links, Els Nieveen van Dijkum, Susanne van Eeden, Gerlof Valk, Inne Borel Rinkes, Menno Vriens
BACKGROUND: Medullary thyroid cancer (MTC) comprises only 4% of all thyroid cancers and originates from the parafollicular C-cells. HIF-1α expression has been implied as an indicator of worse prognosis in various solid tumors. However, whether expression of HIF-1α is a prognosticator in MTC remained unclear. Our aim was to evaluate the prognostic value of HIF-1α in patients with MTC. METHODS: All patients with MTC who were operated on between 1988 and 2014 in five tertiary referral centers in The Netherlands were included...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28387096/-a-familial-non-medullary-thyroid-carcinoma-fnmtc-a-clinical-and-genetic-update
#20
REVIEW
H Valdes-Socin, L Palmeira, M-C Burlacu, A-F Daly, V Bours, A Beckers
The syndrome of Familial Non Medullary Thyroid Carcinoma (FNMTC) includes two or more patients with an isolated non-medullary thyroid cancer (papillary, follicular, anaplastic) within the same family. To diagnose FNMTC, the clinician must exclude a syndromic presentation such as the syndromes of Cowden, Gardner or Werner, and the Carney Complex. Up to now, a hundred families with FNMTC have been genetically studied, including forms with (Ch19p13.2) or without oxyphilia (Ch2q21), in association with a multinodular goiter (Ch14q32), or with a renal cancer (Ch1q21)...
December 2016: Revue Médicale de Liège
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