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molecular thyroid cancer

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https://www.readbyqxmd.com/read/28440491/txnip-overexpression-suppresses-proliferation-and-induces-apoptosis-in-smmc7221-cells-through-ros-generation-and-mapk-pathway-activation
#1
Jian Li, Zhongyi Yue, Wancheng Xiong, Peisheng Sun, Kun You, Jianguo Wang
Thioredoxin binding protein (thioredoxin-interacting protein, TXNIP), known as vitamin D3 increase protein 1, has been identified as a tumor suppressor in various cancers such as pancreatic, breast, lung and thyroid cancer. However, the role of TXNIP in hepatocellular carcinoma cell proliferation and apoptosis remains unknown. In this study, we first used qRT-PCR, western blotting and immunohistochemistry to compare the expression of TXNIP between hepatocellular carcinoma tissues and tumor-adjacent normal liver tissues...
April 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28433252/nrasq61r-immunohistochemistry-detects-both-nrasq61r-and-krasq61r-mutations-in-colorectal-cancer
#2
Jie-Yang Jhuang, Chang-Tsu Yuan, Yu-Lin Lin, Mei-Ling Cheng, Jau-Yu Liau, Jia-Huei Tsai
The NRASQ61R monoclonal antibody (clone sp174) is a mutation-specific antibody that is increasingly being used to detect the NRAS(Q61R) mutation in melanomas. This antibody has been reported to be highly correlated with the NRAS(Q61R) mutation status in melanomas and follicular neoplasms of the thyroid gland. However, its utility in colorectal carcinoma (CRC) has remained largely unknown. In this study, we assessed the sensitivity, specificity, and diagnostic utility of NRASQ61R immunohistochemistry in a cohort consisting of tissue sections of 113 CRCs, which were molecularly profiled for the KRAS, NRAS, and BRAF mutations...
April 19, 2017: Pathology
https://www.readbyqxmd.com/read/28424903/zcchc12-a-novel-oncogene-in-papillary-thyroid-cancer
#3
Ouchen Wang, Zhouci Zheng, Qingxuan Wang, Yixiang Jin, Wenxu Jin, Yinghao Wang, Endong Chen, Xiaohua Zhang
PURPOSE: Thyroid cancer is the most common endocrine malignancy worldwide. The molecular mechanisms underlying thyroid tumorigenesis remain unclear. Some studies suggested that the ZCCHC12 gene correlates with certain diseases. However, the function of ZCCHC12 in thyroid cancer has yet to be determined. This study investigated the role of the ZCCHC12 gene in papillary thyroid cancer (PTC). METHODS: We conducted a comprehensive analysis of massively parallel whole-transcriptome resequencing of matched PTC tumors and normal tissues in 19 patients...
April 19, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28423960/the-role-of-molecular-diagnostic-testing-in-the-management-of-thyroid-nodules
#4
Maureen D Moore, Suraj Panjwani, Katherine D Gray, Brendan M Finnerty, Rasa Zarnegar, Thomas J Fahey
Fine needle aspiration (FNA) with cytologic examination remains the standard of care for investigation of thyroid nodules. However, as many as 30% of FNA samples are cytologically indeterminate for malignancy, which confounds clinical management. To reduce the burden of repeat diagnostic testing and unnecessary surgery, there has been extensive investigation into molecular markers that can be detected on FNA specimens to more accurately stratify a patient's risk of malignancy. Areas Covered: In this review, the authors discuss recent evidence and progress in molecular markers used in the diagnosis of thyroid cancer highlighting somatic gene alterations, molecular technologies and microRNA analysis...
April 19, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28415590/multiple-anti-tumor-effects-of-reparixin-on-thyroid-cancer
#5
Federica Liotti, Maria De Pizzol, Marcello Allegretti, Nella Prevete, Rosa Marina Melillo
BACKGROUND: Expression of IL-8 and its receptors CXCR1 and CXCR2 is a common occurrence in human epithelial thyroid cancer (TC). In human TC samples, IL-8 expression is associated with tumor progression. IL-8 enhances proliferation, survival, motility, and leads to the maintenance of stemness features and tumor-initiating ability of TC cells. Here, we studied the effects of Reparixin (formerly Repertaxin), a small molecular weight CXCR1 and CXCR2 inhibitor, on the malignant phenotype of various TC cell lines...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412368/hsp90-inhibitor-nvp-auy922-induces-cell-apoptosis-by-disruption-of-the-survivin-in-papillary-thyroid-carcinoma-cells
#6
Jinhao Liu, Wei Sun, Wenwu Dong, Zhihong Wang, Yuan Qin, Ting Zhang, Hao Zhang
Heat shock protein 90 (HSP90) is a molecular chaperone required for maintaining the stability and function of signal proteins that plays an important role in promoting the growth and survival of cancer cells. The incidence of papillary thyroid carcinoma (PTC) has been increasing in recent years. The effect of the novel non-geldanamycin HSP90 inhibitor NVP-AUY922 on apoptosis of papillary thyroid carcinoma cells has not been investigated. The influence of AUY922 on the survival of PTC cell lines K1 and IHH4 was evaluated...
April 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28401024/inhibition-of-stat3-signaling-blocks-obesity-induced-mammary-hyperplasia-in-a-mouse-model
#7
Jeong Won Park, Li Zhao, Mark C Willingham, Sheue-Yann Cheng
Compelling epidemiologic evidence indicates that obesity is a risk factor for human cancers, including breast. However, molecular mechanisms by which obesity could contribute to the development of breast cancer remain unclear. To understand the impact of obesity on breast cancer development, we used a mutant mouse that expresses a mutated thyroid hormone receptor β (denoted as PV) with haplodeficiency of the Pten gene (Thrb(PV/PV)Pten(+/-) mice). We previously showed that adult nulliparous female Thrb(PV/PV)Pten(+/-) mice developed extensive mammary hyperplasia and breast tumors...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28400402/molecular-targeted-therapies-in-adrenal-pituitary-and-parathyroid-malignancies
#8
Anna Angelousi, Georgios K Dimitriadis, Gn Zografos, Svenja Nölting, Gregory A Kaltsas, Ashley B Grossman
Tumourigenesis is a relatively common event in endocrine tissues. Currently, specific guidelines have been developed for common malignant endocrine tumours which also incorporate advances in molecular targeted therapies (MTT), as in thyroid cancer and gastrointestinal neuroendocrine malignancies. However, there is little information regarding the role and efficacy of MTT in the relatively rare malignant endocrine tumours mainly involving the adrenal medulla, adrenal cortex, pituitary and parathyroid glands...
April 11, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28391026/radiopharmaceuticals-in-the-elderly-cancer-patient-practical-considerations-with-a-focus-on-prostate-cancer-therapy-a-position-paper-from-the-international-society-of-geriatric-oncology-task-force
#9
John O Prior, Silke Gillessen, Manfred Wirth, William Dale, Matti Aapro, Wim J G Oyen
Molecular imaging using radiopharmaceuticals has a clear role in visualising the presence and extent of tumour at diagnosis and monitoring response to therapy. Such imaging provides prognostic and predictive information relevant to management, e.g. by quantifying active tumour mass using positron emission tomography/computed tomography (PET/CT). As these techniques require only pharmacologically inactive doses, age and potential frailty are generally not important. However, this may be different for therapy involving radionuclides because the radiation can impact normal bodily function (e...
April 6, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28382490/silencing-of-y-box-binding-protein-1-by-rna-interference-inhibits-proliferation-invasion-and-metastasis-and-enhances-sensitivity-to-cisplatin-through-nf-%C3%AE%C2%BAb-signaling-pathway-in-human-neuroblastoma-sh-sy5y-cells
#10
Hong Wang, Ruowen Sun, Zuofei Chi, Shuang Li, Liangchun Hao
Y-box binding protein-1 (YB-1), a member of Y-box protein family binding DNA and RNA, has been proposed as a novel marker in multiple malignant tumors and found to be associated with tumor malignancy. Neuroblastoma is an embryonal tumor arising from neuroblast cells of the autonomic nervous system, which is the most common cancer diagnosed in infants. It has been reported that YB-1 is highly expressing in various human tumors including nasopharynx, thyroid, lung, breast, colon, ovary, and prostate cancers. This study aimed to investigate the functional role of YB-1 in neuroblastoma by silencing YB-1 using RNA interference (shRNA) in neuroblastoma SH-SY5Y cells...
April 5, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28368473/targeting-myc-as-a-therapeutic-intervention-for-anaplastic-thyroid-cancer
#11
Keisuke Enomoto, Xuguang Zhu, Sunmi Park, Li Zhao, Yuelin J Zhu, Mark C Willingham, Jun Qi, John A Copland, Paul Meltzer, Sheue-Yann Cheng
Context: Recent studies showed that transcription of the MYC gene is driven by interaction of bromodomain and extraterminal domain (BET) proteins with acetylated histones on chromatin. A potent inhibitor, JQ1, which effectively disrupts the interaction of BET proteins with acetylated histones, preferentially suppresses transcription of the MYC gene. We recently reported that JQ1 decreased thyroid tumor growth and improved survival in a mouse model of anaplastic thyroid cancer (ATC) by targeting MYC transcription...
March 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28367057/fibronectin-1-promotes-migration-and-invasion-of-papillary-thyroid-cancer-and-predicts-papillary-thyroid-cancer-lymph-node-metastasis
#12
Shujun Xia, Chuandong Wang, Emily Louise Postma, Yanhua Yang, Xiaofeng Ni, Weiwei Zhan
Lymph node metastasis (LNM) is common in papillary thyroid cancer (PTC), and is an indicator of recurrence. The detailed molecular mechanism of LNM in PTC has not been well described. This study aimed to investigate the role of fibronectin 1 in PTC LNM and its clinical relevance. The expression of fibronectin 1 was confirmed in PTC tissues and cell lines. A correlation analysis was conducted and a receiver-operating characteristic curve obtained. The effect of fibronectin 1 on the proliferation of PTC cell lines was performed using a colony-formation assay and Cell Counting Kit 8...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28362337/action-of-thyroid-hormones-t3-and-t2-on-hepatic-fatty-acids-differences-in-metabolic-effects-and-molecular-mechanisms
#13
REVIEW
Fabrizio Damiano, Alessio Rochira, Antonio Gnoni, Luisa Siculella
The thyroid hormones (THs) 3,3',5,5'-tetraiodo-l-thyronine (T4) and 3,5,3'-triiodo-l-thyronine (T3) influence many metabolic pathways. The major physiological function of THs is to sustain basal energy expenditure, by acting primarily on carbohydrate and lipid catabolism. Beyond the mobilization and degradation of lipids, at the hepatic level THs stimulate the de novo fatty acid synthesis (de novo lipogenesis, DNL), through both the modulation of gene expression and the rapid activation of cell signalling pathways...
March 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28358874/prognostic-implication-of-histological-features-associated-with-ehd2-expression-in-papillary-thyroid-carcinoma
#14
Yourha Kim, Min-Hee Kim, Sora Jeon, Jeeyoon Kim, Chankyung Kim, Ja Seong Bae, Chan Kwon Jung
Papillary thyroid carcinoma (PTC) is a heterogeneous tumor with various histological and molecular subtypes. EHD2 is involved in endocytosis and endosomal recycling. This study aimed to investigate the prognostic significance of EHD2 expression in PTC and develop a new model for predicting persistent/recurrent disease after thyroidectomy. Pathologic slides of 512 consecutive patients with PTC ≥ 1 cm were retrospectively reviewed. BRAF mutation analysis and immunohistochemistry for EHD2 were performed. Clinical significance of EHD2 mRNA expression was analyzed in 388 PTC patients using The Cancer Genome Atlas dataset...
2017: PloS One
https://www.readbyqxmd.com/read/28351942/targeting-the-tsh-receptor-in-thyroid-cancer
#15
Christopher W Rowe, Jonathan Paul, Craig Gedye, Jorge Tolosa, Cino Bendinelli, Shaun McGrath, Roger Smith
Recent advances in the arena of theranostics have necessitated a re-examining of previously established fields. The existing paradigm of therapeutic thyroid stimulating hormone receptor (TSHR) targeting in the post-surgical management of differentiated thyroid cancer using levothyroxine and recombinant human thyroid stimulating hormone (TSH) is well understood. However, in an era of personalized medicine, and with an increasing awareness of the risk profile of longstanding pharmacological hyperthyroidism, it is imperative clinicians understand the molecular basis and magnitude of benefit for individual patients...
March 28, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28326350/tumor-induced-osteomalacia-secondary-to-anaplastic-thyroid-carcinoma-a-case-report-and-review-of-the-literature
#16
Ejigayehu G Abate, Victor Bernet, Cherise Cortese, Hillary W Garner
CONTEXT: Tumor induced osteomalacia related to anaplastic thyroid cancer has never been reported. OBJECTIVE: We describe a case of tumor induced osteomalacia (TIO) in a patient with a fibroblast growth factor 23 (FGF-23) secreting anaplastic thyroid carcinoma. The current imaging modalities are reviewed. DESIGN AND INTERVENTION: Clinical, biochemical, and radiological assessments were done, including computer tomography (CT) of the neck and skull to thigh positron emission tomography (PET)/CT...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28323925/refining-dynamic-risk-stratification-and-prognostic-groups-for-differentiated-thyroid-cancer-with-tert-promoter-mutations
#17
Tae Hyuk Kim, Chang-Seok Ki, Hye Seung Kim, Kyunga Kim, Jun-Ho Choe, Jung-Han Kim, Jee Soo Kim, Young Lyun Oh, Soo Yeon Hahn, Jung Hee Shin, Hye Won Jang, Sun Wook Kim, Jae Hoon Chung
Context: Currently, no recurrence or mortality risk systems consider molecular testing when predicting thyroid cancer outcomes. Objective: We developed an integrative prognostic system that incorporates TERT promoter mutations into the recently proposed risk reclassification system after initial therapy (dynamic risk stratification, DRS) to better categorize and predict outcomes. Design: A total of 357 differentiated thyroid cancer patients without initial distant metastasis were enrolled...
February 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28318881/targeted-therapy-in-thyroid-cancer-state-of-the-art
#18
L Valerio, L Pieruzzi, C Giani, L Agate, V Bottici, L Lorusso, V Cappagli, L Puleo, A Matrone, D Viola, C Romei, R Ciampi, E Molinaro, R Elisei
Thyroid cancer typically has a good outcome following standard treatments, which include surgery, radioactive iodine ablation for differentiated tumours and treatment with thyrotropine hormone-suppressive levothyroxine. Thyroid cancers that persist or recur following these therapies have a poorer prognosis. Cytotoxic chemotherapy or external beam radiotherapy has a low efficacy in these patients. 'Target therapy' with tyrosine kinase inhibitors (TKIs) represent an important therapeutic option for the treatment of advanced cases of radioiodine refractory (RAI-R) differentiated thyroid cancer (DTC), medullary thyroid cancer (MTC) and possibly for cases of poorly differentiated (PDTC) and anaplastic thyroid cancer (ATC)...
March 16, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28314770/cribriform-morular-variant-of-papillary-thyroid-carcinoma-a-distinctive-type-of-thyroid-cancer
#19
REVIEW
Alfred King-Yin Lam, Nassim Saremi
The aim of this systematic review is to study the features of cribriform-morular variant of papillary thyroid carcinoma (CMV-PTC) by analysing the 129 documented cases in the English literature. The disease occurred almost exclusively in women. The median age of presentation for CMV-PTC was 24 years. Slightly over half of the patients with CMV-PTC had familial adenomatous polyposis (FAP). CMV-PTC presented before the colonic manifestations in approximately half of the patients with FAP. Patients with FAP often have multifocal tumours in the thyroid...
April 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28294980/microrna-146b-a-novel-biomarker-and-therapeutic-target-for-human-papillary-thyroid-cancer
#20
REVIEW
Chen-Kai Chou, Rue-Tusan Liu, Hong-Yo Kang
Papillary thyroid cancer (PTC) is the most common tumor subtype of thyroid cancer. However, not all PTCs are responsive to current surgical and radioiodine treatment. The well-established clinical prognostic factors include tumor size, lymph node/distal metastasis, and extrathyroidal invasion. The RET/PTC-RAS-BRAF linear molecular signaling cascade is known to mediate PTC pathogenesis. However, whether presence of BRAF mutation, the most common genetic alteration in PTC, can affect PTC behavior and prognosis is controversial...
March 15, 2017: International Journal of Molecular Sciences
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