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Medullary thyroid carcinoma

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https://www.readbyqxmd.com/read/28332308/ceacam1-long-isoform-has-opposite-effects-on-the-growth-of-human-mastocytosis-and-medullary-thyroid-carcinoma-cells
#1
Chiyuki Ueshima, Tatsuki R Kataoka, Yusuke Takei, Masahiro Hirata, Akihiko Sugimoto, Mitsuyoshi Hirokawa, Yoshimichi Okayama, Richard S Blumberg, Hironori Haga
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is expressed in a number of tumor cell types. The immunoreceptor tyrosine-based inhibitory motif (ITIM)-containing isoforms of this molecule which possess a long cytoplasmic tail (CEACAM1-L) generally play inhibitory roles in cell function by interacting with Src homology 2 domain-containing tyrosine phosphatase (SHP)-1 and/or SHP-2. Src family kinases (SFKs) are also known to bind to and phosphorylate CEACAM1-L isoforms. Here, we report that CEACAM1 was uniquely expressed at high levels in both human neoplastic mast cells (mastocytosis) and medullary thyroid carcinoma cell (MTC) lines, when compared with their expression in nonneoplastic mast cells or nonneoplastic C cells...
March 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28323957/risk-profile-of-the-ret-a883f-germline-mutation-an-international-collaborative-study
#2
Jes Sloth Mathiesen, Mouhammed Amir Habra, John Howard Duncan Bassett, Sirazum Mubin Choudhury, Sabapathy Prakash Balasubramanian, Trevor A Howlett, Bruce G Robinson, Anne-Paule Gimenez-Roqueplo, Frederic Castinetti, Peter Vestergaard, Karin Frank-Raue
Context: The A883F germline mutation of the REarranged during Transfection proto-oncogene causes multiple endocrine neoplasia 2B. In the revised American Thyroid Association (ATA) guidelines for the management of medullary thyroid carcinoma (MTC) the A883F mutation has been reclassified from the highest to high risk level, although no well-defined risk profile for this mutation exists. Objective: To create a risk profile for the A883F mutation for appropriate classification in the ATA risk levels...
March 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28315378/epigenetic-regulation-of-ret-receptor-tyrosine-kinase-and-non-coding-rnas-in-mtc
#3
Lauren Jin Suk Joo, Jing Ting Zhao, Matti L Gild, Anthony R Glover, Stan B Sidhu
Medullary thyroid carcinoma (MTC) is an aggressive and rare cancer with limited treatment options for metastatic disease. Due to this, there is a need for a better understanding of MTC biology in the hope of improved treatments. One area of improved understanding of cancer biology is epigenetics. Epigenetics is defined as cellular processes which alter gene expression independent of changes in the primary DNA sequence. These processes include modifications such as DNA methylation, microRNA deregulation and post-translational histone modifications, all of which have been implicated in tumorigenesis of MTC...
March 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28301826/a-multicenter-phase-ii-study-of-sunitinib-in-patients-with-locally-advanced-or-metastatic-differentiated-anaplastic-or-medullary-thyroid-carcinomas-mature-data-from-the-thysu-study
#4
Alain Ravaud, Christelle de la Fouchardière, Philippe Caron, Adelaïde Doussau, Christine Do Cao, Julien Asselineau, Patrice Rodien, Damien Pouessel, Patricia Nicolli-Sire, Marc Klein, Claire Bournaud-Salinas, Jean-Louis Wemeau, Anne Gimbert, Marie-Quitterie Picat, Delphine Pedenon, Laurence Digue, Amaury Daste, Bogdan Catargi, Jean-Pierre Delord
PURPOSE: Patients with advanced radioactive iodine resistant differentiated (MDTC) or medullary (MMTC) thyroid cancer had an unmet need. Early data showed promising efficacy of vascular endothelial growth factor receptor inhibitors. We investigated sunitinib in this setting. PATIENTS AND METHODS: This phase 2 trial enrolled MDTC, anaplastic (MATC) and MMTC patients in 1st line anti-angiogenic therapy with sunitinib at 50 mg/d, 4/6w. Objective response rate was the primary end-point...
March 13, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28291004/-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-for-other-thyroid-cancers-medullary-anaplastic-lymphoma-and-so-forth
#5
Mine Araz, Derya Çayır
Positron emission tomography/computed tomography (PET/CT) with (18)F-fluorodeoxyglucose (FDG) is used in staging, restaging, and evaluation of therapy response in many cancers as well as differentiated thyroid carcinomas especially in non-iodine avid variants. Its potential in less frequent thyroid tumors like medullary, anaplastic thyroid cancers, thyroid lymphoma and metastatic tumors of the thyroid however, is not well established yet. The aim of this review is to provide an overview on the recent applications and indications of (18)F-FDG PET/CT in these tumors and to focus on the controversies in the clinical setting...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28276947/assessment-of-depression-anxiety-quality-of-life-and-coping-in-long-standing-multiple-endocrine-neoplasia-type-2-patients
#6
Karine Candido Rodrigues, Rodrigo Almeida Toledo, Flavia Lima Coutinho, Adriana Bezerra Nunes, Rui M B Maciel, Ana Oliveira Hoff, Marcos C Tavares, Sergio P A Toledo, Delmar Muniz Lourenço
BACKGROUND: Scarce data on psychological harm in multiple endocrine neoplasia type 2 (MEN2) are available. OBJECTIVES: To assess anxiety, depression, quality of life and coping in long-standing MEN2 patients. PATIENTS AND METHODS: Forty-three adults (age ≥ 18 y) with clinical and genetic diagnosis of MEN2 and long-term follow-up (10.6±8.2 years; 1-33). A cross-sectional study with qualitative and quantitative psychological assessment using semi-directed interviews and HADS, EORTC QLQ C30 and MINI-MAC scales...
March 9, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28259364/chronic-diarrhea-the-first-symptom-of-a-metastatic-medullary-thyroid-carcinoma
#7
Ander Ernaga Lorea, Iranzu Migueliz Bermejo, Nerea Eguílaz Esparza, María Cecilia Hernández Morhain, Javier Pineda Arribas
No abstract text is available yet for this article.
March 1, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28257096/expression-of-autophagy-related-proteins-in-different-types-of-thyroid-cancer
#8
Hye Min Kim, Eun-Sol Kim, Ja Seung Koo
Thyroid cancer is common type of malignant tumor in humans, and the autophagy status of such tumors may vary according to subtype. This study aimed to investigate the expression and implications of the major autophagy-related molecules light chain (LC) 3A, LC3B, p62, and BNIP-3 in human thyroid carcinoma. Tissue microarrays were constructed from 555 thyroid cancers (papillary thyroid carcinoma (PTC): 342; follicular carcinoma (FC): 112; medullary carcinoma (MC): 70; poorly differentiated carcinoma (PDC): 23; and anaplastic carcinoma (AC): 8) and 152 follicular adenomas (FAs)...
March 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230092/rtfc-4931414p19rik-regulates-in-vitro-thyroid-differentiation-and-in-vivo-thyroid-function
#9
Yang Yu, Chang Liu, Junxia Zhang, Mimi Zhang, Wei Wen, Xianhui Ruan, Dapeng Li, Shuang Zhang, Ming Gao, Lingyi Chen
Thyroid is a one of the most important endocrine organs. Understanding the molecular mechanism underlying thyroid development and function, as well as thyroid diseases, is beneficial for the clinical treatment of thyroid diseases and tumors. Through genetic linkage analysis and exome sequencing, we previously identified an uncharacterized gene C14orf93 (RTFC, mouse homolog: 4931414P19Rik) as a novel susceptibility gene for familial non-medullary thyroid carcinoma, and demonstrated its function in promoting thyroid tumor...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217964/is-fine-needle-aspiration-really-not-necessary-in-patients-with-thyroid-nodules%C3%A2-%C3%A2-%C3%A2-1-cm-with-highly-suspicious-features-on-ultrasonography-and-candidates-for-active-surveillance
#10
Pedro Weslley Rosario, Alexandre Lemos Silva, Maria Regina Calsolari
BACKGROUND: The low rate of progression associated with the potential complications of thyroidectomy makes active surveillance an increasingly recommended management in low-risk papillary microcarcinomas of the thyroid (PMT). The objective of this study was to report the results of fine needle aspiration (FNA) of nodules ≤ 1 cm with highly suspicious appearance on ultrasonography (US) in patients who are potential candidates for active surveillance. METHODS: We revised thyroid nodules ≤ 1 cm with highly suspicious appearance on US in patients without known distant metastases, suspicion of extrathyroid extension, or suspicious lymph nodes on US...
April 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28209747/pediatric-adolescent-and-young-adult-thyroid-carcinoma-harbors-frequent-and-diverse-targetable-genomic-alterations-including-kinase-fusions
#11
Pierre Vanden Borre, Alexa B Schrock, Peter M Anderson, John C Morris, Andreas M Heilmann, Oliver Holmes, Kai Wang, Adrienne Johnson, Steven G Waguespack, Sai-Hong Ignatius Ou, Saad Khan, Kar-Ming Fung, Philip J Stephens, Rachel L Erlich, Vincent A Miller, Jeffrey S Ross, Siraj M Ali
BACKGROUND: Thyroid carcinoma, which is rare in pediatric patients (age 0-18 years) but more common in adolescent and young adult (AYA) patients (age 15-39 years), carries the potential for morbidity and mortality. METHODS: Hybrid-capture-based comprehensive genomic profiling (CGP) was performed prospectively on 512 consecutively submitted thyroid carcinomas, including 58 from pediatric and AYA (PAYA) patients, to identify genomic alterations (GAs), including base substitutions, insertions/deletions, copy number alterations, and rearrangements...
February 16, 2017: Oncologist
https://www.readbyqxmd.com/read/28191292/oncocytic-variant-of-medullary-thyroid-carcinoma-a-rare-case-of-sporadic-multifocal-and-bilateral-ret-wild-type-neoplasm-with-revision-of-the-literature
#12
Gian Luca Rampioni Vinciguerra, Niccolò Noccioli, Claudia Cippitelli, Angelo Minucci, Ettore Capoluongo, Armando Bartolazzi
Oncocytic variant of medullary thyroid carcinoma (OV-MTC) is a very unusual entity, up to date only 17 cases have been reported in the literature. MTC is a neuro-endocrine malignancy arising from the para-follicular C cells of the thyroid gland. It generally has a slight female predominance and appears as a single lesion. However in the Multiple Endocrine Neoplasia Syndrome 2, linked to the point mutation of RET oncogene, multifocal MTCs may also occur. Herein, we report the case of a 75 years old man with a rare form of sporadic multifocal and bilateral OV-MTC expressing wild-type RET gene...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28186607/-clinical-features-and-mutations-of-ret-proto-oncogene-in-a-pedigree-affected-with-type-2a-multiple-endocrine-neoplasia
#13
Yong Zhang, Xiao Zheng, Liang Cheng, Shaogang Ma
OBJECTIVE: To investigate the clinical features and mutations of RET proto-oncogene in a pedigree affected with multiple endocrine neoplasia type 2A (MEN2A). METHODS: Clinical data of the family members was collected. Genomic DNA from peripheral blood leukocytes were extracted and subjected to PCR amplification. Exons 8, 10, 11, 13, 14, 15, 16 of the RET gene was sequenced. RESULTS: A missense mutation p.C634W was detected in 8 members from the family...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28167464/high-frequency-ultrasound-features-and-pathological-characteristics-of-medullary-thyroid-carcinoma
#14
Hua Wang, Mengmeng Liu, Jianqiu Yang, Yimin Song
To study high-frequency ultrasound features and pathological characteristics of medullary thyroid carcinoma (medullary thyroid carcinoma, MTC) with the purpose to improve the diagnostic accuracy of this disease. The clinical data of 20 cases of patients with MTC confirmed by the clinical surgery were retrospectively analyzed. And the high-frequency ultrasound features were analyzed and compared with the pathological characteristics. There were 16 cases with tumor invasion into one side of the thyroid gland; 17 cases with tumor in the middle-upper pole of the thyroid gland...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28166595/basal-serum-calcitonin-after-calcium-stimulation-and-in-the-needle-washout-of-patients-with-thyroid-nodules-and-mild-or-moderate-basal-hypercalcitoninemia
#15
P W Rosario, M R Calsolari
This prospective study evaluated the concentrations of basal serum calcitonin (Ctn), Ctn after stimulation with calcium, and Ctn in the needle washout (FNA-Ctn) as predictors of sporadic medullary thyroid carcinoma (MTC) in patients with thyroid nodules and basal Ctn between 10 and 100 pg/ml. Forty-one patients were included in the study. MTC was diagnosed in only 6 patients (14.6%). None of the patients with basal Ctn≤24.6 pg/ml (n=26) or stimulated Ctn≤186.5 pg/ml (n=21) had MTC. All patients without MTC had basal Ctn<47 pg/ml and stimulated Ctn<655...
February 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28166591/search-of-the-p-m918t-mutation-in-the-ret-oncogene-in-mexican-adult-patients-with-medullary-thyroid-carcinoma
#16
Erika Ruiz-Garcia, Silvia Vidal-Millan, Alicia Lopez-Yañez, José Antonio Posada Torres, Jorge Alberto Guadarrama-Orozco, Leonardo Saul Lino-Silva, Abelardo Meneses-Garcia, Horacio Astudillo-de la Vega, Martin Granados Garcia
Inherited mutations in the RET proto-oncogene, which encodes a receptor tyrosine kinase, predispose individuals to the multiple endocrine neoplasia type 2 (MEN 2) cancer syndromes. The major component tumor of these syndromes is medullary thyroid carcinoma (MTC). To date, somatic mutations in RET have been identified in tumors from individuals with MEN 2 finding. RET M918T mutation is present in 95% of the MEN2B cases, and approximately 50% of sporadic MTCs harbor this mutation. We performed a mutational analysis in 17 cases of Medullary thyroid carcinoma, the somatic missense mutation at codon 918 of RET was found in 2 of the 17 MTCs, and one case presented MEN2 phenotype including MTC...
February 6, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28154018/hepatic-lesions-in-a-cirrhotic-liver-primary-or-metastases
#17
Lorenzo Mannelli, Serena Monti, Verena Grieco, Manuela Matesan
Although prior studies showed that patients with cirrhosis have a lower risk of developing liver metastases, appropriate workup of incidental liver masses in cirrhotic liver is important for a correct diagnosis. Here we present a case of newly diagnosed liver cirrhosis with multifocal hepatic lesions, which was initially categorized as a LI-RADS (Liver Imaging Reporting and Data System) 5 lesions. Scintigraphy with (111)In-pentetreotide (Octreoscan) indicated a suspected thyroid nodule, later confirmed to represent medullary thyroid carcinoma lesion...
March 2017: Journal of Nuclear Medicine Technology
https://www.readbyqxmd.com/read/28134695/multiple-endocrine-neoplasia-type-2b-unmasked-by-18f-fdg-pet-ct-and-131i-mibg-spect-ct
#18
Xun Sun, Maher Mohamad Rajab Arnous, Xiaoli Lan
F-FDG PET/CT was performed to detect an occult malignancy in a 26-year-old woman with complicated medical history which included paroxysmal hypertension and significantly elevated tumor marker. The images revealed lesions in the thyroid, lymph nodes, and bilateral adrenal glands. Further I-MIBG SPECT/CT revealed intense activity in the lesion in the left adrenal gland, which was consistent with pheochromocytoma. The pathology examination after subsequent neck biopsy demonstrated medullary thyroid carcinoma...
January 27, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28131876/modulating-the-function-of-atp-binding-cassette-subfamily-g-member-2-abcg2-with-inhibitor-cabozantinib
#19
Guan-Nan Zhang, Yun-Kai Zhang, Yi-Jun Wang, Anna Maria Barbuti, Xi-Jun Zhu, Xin-Yue Yu, Ai-Wen Wen, John N D Wurpel, Zhe-Sheng Chen
Cabozantinib (XL184) is a small molecule tyrosine kinase receptor inhibitor, which targets c-Met and VEGFR2. Cabozantinib has been approved by the Food and Drug Administration to treat advanced medullary thyroid cancer and renal cell carcinoma. In the present study, we evaluated the ability of cabozantinib to modulate the function of the ATP-binding cassette subfamily G member 2 (ABCG2) by sensitizing cells that are resistant to ABCG2 substrate antineoplastic drugs. We used a drug-selected resistant cell line H460/MX20 and three ABCG2 stable transfected cell lines ABCG2-482-R2, ABCG2-482-G2, and ABCG2-482-T7, which overexpress ABCG2...
January 25, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28126478/gene-signature-associated-with-upregulation-of-the-wnt-%C3%AE-catenin-signaling-pathway-predicts-tumor-response-to-transarterial-embolization
#20
Etay Ziv, Hooman Yarmohammadi, F Edward Boas, Elena Nadia Petre, Karen T Brown, Stephen B Solomon, David Solit, Diane Reidy, Joseph P Erinjeri
PURPOSE: To identify gene mutations in tumors undergoing transarterial embolization and explore the relationship between gene mutations and tumor response to embolization. MATERIALS AND METHODS: This was a retrospective review that included 17 patients with primary or metastatic liver tumors treated with embolization and had specimens analyzed for a 341-gene panel next-generation sequence assay. Pathologic conditions included hepatocellular, carcinoid, pancreatic neuroendocrine, melanoma, medullary thyroid, and liver acinar-cell carcinoma...
March 2017: Journal of Vascular and Interventional Radiology: JVIR
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