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https://www.readbyqxmd.com/read/29450259/hand-assisted-laparoscopic-partial-nephrectomy-for-large-renal-carcinoma-with-succinate-dehydrogenase-deficiency
#1
Ann Buhl Bersang, Sarah Bube, Mikkel Fode, Nessn H Azawi
Background: Germline mutations in succinate dehydrogenase (SDH) are associated with multifocal cancers: pituitary gland tumors, pheochromocytomas, paragangliomas, gastrointestinal stromal tumors, and renal-cell carcinomas (RCCs). SDH-deficient renal-cell carcinoma (SDH-RCC) was first identified in 2004 as an inherited kidney cancer with mutations in the SDH gene. SDH consists of A, B, C, and D units. Mutation in the SDHB gene is the most common mutation in SDH-deficient RCCs. Case Presentation: We report a case of a 51-year-old healthy man diagnosed with SDHB germline mutation and RCCs...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29433465/strengthening-health-data-on-a-rare-and-heterogeneous-disease-sarcoma-incidence-and-histological-subtypes-in-germany
#2
Meike Ressing, Eva Wardelmann, Peter Hohenberger, Jens Jakob, Bernd Kasper, Katharina Emrich, Andrea Eberle, Maria Blettner, Sylke Ruth Zeissig
BACKGROUND: The population-based incidence of sarcoma and its histological subtypes in Germany is unknown. Up-to-date information on a disease with an incidence comparable to other cancer entities is of high public health relevance. The aim of this study was to determine this incidence and to detect significant changes in incidence trends using data from German epidemiological cancer registries. METHODS: Pooled data from the German Centre for Cancer Registry Data with a primary diagnosis occurring in 2013 were used...
February 12, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29431674/what-s-the-fox-got-to-do-with-the-kitten-regulating-the-lineage-specific-transcriptional-landscape-in-gist
#3
Donna M Lee, Anette Duensing
Transcriptional regulation of the KIT receptor tyrosine kinase, a master regulator in gastrointestinal stromal tumors (GIST) and their precursors, the interstitial cells of Cajal (ICC), is part of a positive feedback loop involving the transcription factor ETV1. A new study now shows that the forkhead box (FOX) family transcription factor FOXF1 not only is an upstream regulator of ETV1 and hence ICC/GIST lineage-specific gene transcription, but also functions as lineage-specific pioneer factor with an active role in chromatin rearrangement to facilitate ETV1 binding and transcriptional activity...
February 2018: Cancer Discovery
https://www.readbyqxmd.com/read/29423012/ccdc26-knockdown-enhances-resistance-of-gastrointestinal-stromal-tumor-cells-to-imatinib-by-interacting-with-c-kit
#4
Ke Cao, Minhuan Li, Ji Miao, Xiaofeng Lu, Xing Kang, Hao Zhu, Shangce Du, Xue Li, Qian Zhang, Wenxian Guan, Ying Dong, Xuefeng Xia
Accumulating evidence indicates that long noncoding RNAs (lncRNAs) are involved in diseases such as cancer. However, little is known about the role of lncRNAs in gastrointestinal stromal tumors (GIST). In the present study, we explored the biological function of the lncRNA coiled-coil domain-containing 26 (CCDC26) in imatinib resistance of GIST. We found that human GIST-882 cells with lower CCDC26 expression were less sensitive to imatinib compared with GIST-T1 cells with higher CCDC26 expression. CCDC26 expression decreased in a time-dependent manner in the presence of imatinib...
2018: American Journal of Translational Research
https://www.readbyqxmd.com/read/29422251/systematic-review-of-current-prognostication-systems-for-primary-gastrointestinal-stromal-tumors
#5
REVIEW
Chun Yuet Khoo, Xun Chai, Richard Quek, Melissa C C Teo, Brian K P Goh
BACKGROUND: The advent of tyrosine kinase inhibitors as adjuvant therapy has revolutionized the management of GIST and emphasized the need for accurate prognostication systems. Numerous prognostication systems have been proposed for GIST but at present it remains unknown which system is superior. The present systematic review aims to summarize current prognostication systems for primary treatment-naive GIST. METHODS: A literature review of the Pubmed and Embase databases was performed to identify all published articles in English, from the 1st January 2002 to 28th Feb 2017, reporting on clinical prognostication systems of GIST...
January 9, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29395463/uncovering-hereditary-tumor-syndromes-emerging-role-of-surgical-pathology
#6
REVIEW
Abbas Agaimy, Arndt Hartmann
With the increased use of modern next generation sequencing technologies in routine molecular pathology practice, the proportion of cancer cases with a definite or probable hereditary background seems to be steadily increasing. Currently, it is assumed that ≥10% of all malignancies develop in the setting of germline predisposition. Diagnosis and recognition of cancer predisposition syndromes relies not rarely on distinctive histopathological features that proved to be highly valuable and reproducible in uncovering those diseases that would otherwise have gone undetected by clinicians as being hereditary in nature...
January 29, 2018: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29377440/clinical-relevance-of-integrin-alpha-4-in-gastrointestinal-stromal-tumours
#7
Olli-Pekka Pulkka, John-Patrick Mpindi, Olli Tynninen, Bengt Nilsson, Olli Kallioniemi, Harri Sihto, Heikki Joensuu
The molecular mechanisms for the dissemination and metastasis of gastrointestinal stromal tumours (GIST) are incompletely understood. The purpose of the study was to investigate the clinical relevance of integrin alpha 4 (ITGA4) expression in GIST. GIST transcriptomes were first compared with transcriptomes of other types of cancer and histologically normal gastrointestinal tract tissue in the MediSapiens in silico database. ITGA4 was identified as an unusually highly expressed gene in GIST. Therefore, the effects of ITGA4 knock-down and selective integrin alpha 4 beta 1 (VLA-4) inhibitors on tumour cell proliferation and invasion were investigated in three GIST cell lines...
January 29, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29371979/etv4-collaborates-with-wnt-%C3%AE-catenin-signaling-to-alter-cell-cycle-activity-and-promote-tumor-aggressiveness-in-gastrointestinal-stromal-tumor
#8
Shan Zeng, Adrian M Seifert, Jennifer Q Zhang, Teresa S Kim, Timothy G Bowler, Michael J Cavnar, Benjamin D Medina, Gerardo A Vitiello, Ferdinand Rossi, Jennifer K Loo, Nesteene J Param, Ronald P DeMatteo
Gastrointestinal stromal tumor (GIST) is the most common sarcoma, often resulting from a KIT or platelet-derived growth factor receptor alpha (PDGFRA) mutation. The lineage transcription factor ETV1 is expressed similarly in GISTs regardless of malignant potential. Although the related transcription factor ETV4 has been associated with metastasis and tumor progression in other cancers, its role in GIST is unknown. In this study, we found that ETV4 levels were high in a subset of human GISTs and correlated with high mitotic rate...
December 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29362252/primary-goals-information-giving-and-men-s-understanding-a-qualitative-study-of-australian-and-uk-doctors-varied-communication-about-psa-screening
#9
Kristen Pickles, Stacy M Carter, Lucie Rychetnik, Kirsten McCaffery, Vikki A Entwistle
OBJECTIVES: (1) To characterise variation in general practitioners' (GPs') accounts of communicating with men about prostate cancer screening using the prostate-specific antigen (PSA) test, (2) to characterise GPs' reasons for communicating as they do and (3) to explain why and under what conditions GP communication approaches vary. STUDY DESIGN AND SETTING: A grounded theory study. We interviewed 69 GPs consulting in primary care practices in Australia (n=40) and the UK (n=29)...
January 23, 2018: BMJ Open
https://www.readbyqxmd.com/read/29360641/cop1-det1-ets-axis-regulates-erk-transcriptome-and-sensitivity-to-mapk-inhibitors
#10
Yuanyuan Xie, Zhen Cao, Elissa Wp Wong, Youxin Guan, Wenfu Ma, Jenny Q Zhang, Edward G Walczak, Devan Murphy, Leili Ran, Inna Sirota, Shangqian Wang, Shipra Shukla, Dong Gao, Simon Rv Knott, Kenneth Chang, Justin Leu, John Wongvipat, Cristina R Antonescu, Gregory Hannon, Ping Chi, Yu Chen
Aberrant activation of MAPK signaling leads to activation of oncogenic transcriptomes. How MAPK signaling is coupled with transcriptional response in cancer is not fully understood. In gastrointestinal stromal tumor and melanoma, both with oncogenic MAPK activation, we find that ETV1 and other Pea3-ETS transcription factors are critical nuclear effectors of MAPK signaling that are regulated through protein stability. Expression of stabilized Pea3-ETS factors can partially rescue the MAPK transcriptome and cell viability after MAPK inhibition...
January 23, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29339836/the-role-of-metabolic-enzymes-in-mesenchymal-tumors-and-tumor-syndromes-genetics-pathology-and-molecular-mechanisms
#11
REVIEW
Inga-Marie Schaefer, Jason L Hornick, Judith V M G Bovée
The discovery of mutations in genes encoding the metabolic enzymes isocitrate dehydrogenase (IDH), succinate dehydrogenase (SDH), and fumarate hydratase (FH) has expanded our understanding not only of altered metabolic pathways but also epigenetic dysregulation in cancer. IDH1/2 mutations occur in enchondromas and chondrosarcomas in patients with the non-hereditary enchondromatosis syndromes Ollier disease and Maffucci syndrome and in sporadic tumors. IDH1/2 mutations result in excess production of the oncometabolite (D)-2-hydroxyglutarate...
January 16, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29318911/comparison-of-three-prognostic-models-for-predicting-cancer-specific-survival-among-patients-with-gastrointestinal-stromal-tumors
#12
Hani Oweira, Jan Schmidt, Arianeb Mehrabi, Hasan Kulaksiz, Paul Schneider, Othmar Schöb, Anwar Giryes, Omar Abdel-Rahman
AIM: To evaluate the predictive value for cancer-specific survival of the models of the American Joint Committee on Cancer (AJCC) stage, NIH and Armed Forces Institute of Pathology (AFIP) among patients with gastrointestinal stromal tumors (GISTs). METHODS: Surveillance, Epidemiology and End Results database (2010-2014) was accessed. Overall survival analysis and adjusted cancer-specific Cox regression hazard was calculated. RESULTS: For gastric GISTs, concordance-index according to AJCC was 0...
January 10, 2018: Future Oncology
https://www.readbyqxmd.com/read/29315500/long-term-outcome-of-dasatinib-first-line-treatment-in-gastrointestinal-stromal-tumor-a-multicenter-2-stage-phase-2-trial-swiss-group-for-clinical-cancer-research-56-07
#13
Michael Montemurro, Angela Cioffi, Julien Dômont, Piotr Rutkowski, Arnaud D Roth, Roger von Moos, Roman Inauen, Maud Toulmonde, Roger O Burkhard, Claudio Knuesli, Sebastian Bauer, Philippe Cassier, Heike Schwarb, Axel Le Cesne, Dieter Koeberle, Daniela Bärtschi, Daniel Dietrich, Christine Biaggi, John Prior, Serge Leyvraz
BACKGROUND: Tyrosine kinase inhibitors (TKIs) have improved the outcome of patients with gastrointestinal stromal tumors (GISTs), but most patients eventually develop resistance and progress. Dasatinib is a potent inhibitor of BCR-ABL, KIT, and SRC family kinases as well as imatinib-resistant cells. In GISTs, response evaluation is routinely done using computed tomography (CT) and 18 F-fluorodeoxyglucose positron emission tomography coupled to CT (FDG-PET/CT) for early response assessment and outcome prediction...
January 9, 2018: Cancer
https://www.readbyqxmd.com/read/29278883/microrna-152-inhibits-tumor-cell-growth-while-inducing-apoptosis-via-the-transcriptional-repression-of-cathepsin-l-in-gastrointestinal-stromal-tumor
#14
Hong-Jie Lu, Jing Yan, Pei-Ying Jin, Gui-Hong Zheng, Su-Ming Qin, Dong-Mei Wu, Jun Lu, Yuan-Lin Zheng
OBJECTIVE: MicroRNAs are widely thought to play a regulatory role in gene expression. Although the more unique microRNA expression profiles have been reported in several tumors, there remains a scarcity of knowledge in relation to microRNA expression profiles in GISTs. During this study, through the alteration in the expression of microRNA-152 (miR-152) in gastrointestinal stromal tumor (GIST) cells, we subsequently evaluated its ability to influence the processes associated with cancer, including proliferation, migration, invasion, and apoptosis, as well as the associated mechanisms...
December 15, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29237949/diagnosis-and-management-of-gastrointestinal-stromal-tumors-an-up-to-date-literature-review
#15
REVIEW
Ayman El-Menyar, Ahammed Mekkodathil, Hassan Al-Thani
Gastrointestinal stromal tumors (GISTs) are rare life-threatening forms of cancer that may arise anywhere in the GI tract. Herein, we aimed to review the literature to describe the incidence, management, and outcomes of GISTs. We conducted a traditional narrative review using PubMed and EMBASE, searching for English-language publications for GISTs between January 2001 and January 2016 using keywords "gastrointestinal" "stromal tumors." Among 4582 retrieved articles, 50 articles were relevant over the last 15 years...
October 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29234186/primary-leiomyosarcoma-of-the-mesentery-a-case-report
#16
Varsha Dalal, Manveen Kaur, Reetika Menia, Fouzia Siraj, Amar Bhatnagar, Usha Agrawal
Mesenteric masses are infrequent lesions ranging from benign cysts to aggressive malignancies and often present a diagnostic and therapeutic challenge. The mesentery is a frequent recipient of metastases from the gastrointestinal tract, pancreas, and biliary cancers. Primary mesenteric tumors are relatively rare, mostly mesenchymal in origin and benign in nature. Examples include gastrointestinal stromal tumors and smooth muscle tumors. We describe a 50-year-old woman, who presented with a lump in the left hypochondrium along with altered bowel habits of 2 years' duration...
September 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29232272/relative-effects-of-age-race-and-stage-on-mortality-in-gestational-choriocarcinoma
#17
Christopher M Tarney, Chunqiao Tian, Eric R Craig, Barbara A Crothers, John K Chan, Glenn D Gist, Nicholas W Bateman, Thomas P Conrads, Chad A Hamilton, George Larry Maxwell, Kathleen M Darcy
OBJECTIVE: Gestational choriocarcinoma is a malignant form of gestational trophoblastic disease that usually arises after a molar pregnancy, but may follow any antecedent pregnancy. Investigations in this rare cancer are limited. We evaluated the prognostic effects of age, race, and stage in choriocarcinomas diagnosed for 4 decades. METHODS: Patients diagnosed as having gestational choriocarcinoma between 1973 and 2014 from the Surveillance, Epidemiology, and End Results program were eligible...
December 11, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29220298/gastrointestinal-stromal-tumors
#18
Margaret von Mehren, Heikki Joensuu
GI stromal tumors (GISTs) are neoplasms with a varying malignancy potential ranging from virtually indolent tumors to rapidly progressing cancers. GISTs occur throughout the intestinal tract, and most harbor an activating mutation in either KIT or platelet-derived growth factor A ( PDGFRA). Diagnosis is made using immunohistochemistry, but molecular testing with mutation analysis is paramount for selection of appropriate therapy. Most small GISTs are cured with surgery. Tyrosine kinase inhibitor (TKI) therapy has led to substantial improvements in survival, both for patients with localized GIST and those with advanced disease...
January 10, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29207963/two-staging-systems-for-gastrointestinal-stromal-tumors-in-the-stomach-which-is-better
#19
Chul Hong Park, Gwang Ha Kim, Bong Eun Lee, Geun Am Song, Do Youn Park, Kyung Un Choi, Dae Hwan Kim, Tae Yong Jeon
BACKGROUND: The prognosis of a gastrointestinal stromal tumor (GIST) is influenced by its anatomic site; however, few studies on the prognosis of gastric GISTs have been reported. The aims of this study were to evaluate long-term prognoses of patients who underwent surgical resection for gastric GISTs and to compare the clinical efficacy of two staging systems: the National Institutes of Health (NIH) consensus criteria and the 7th Union for International Cancer Control/American Joint Committee on Cancer (UICC/AJCC) tumor-node-metastasis (TNM) staging system...
December 6, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/29167690/synchronous-gists-associated-with-multiple-sporadic-tumors-a-case-report
#20
Danila Comandini, Azzurra Damiani, Alessandro Pastorino
Gastrointestinal stromal tumors (GISTs) are rare neoplasms, but they also represent the most common mesenchymal tumors of the gastrointestinal tract originating from the cell of Cajal. GIST incidence ranges around 1% of all gastrointestinal malignancies. Approximately 5% of all GISTs have a hereditary etiology. The remaining 95% of GISTs are considered sporadic events, with up to 75% of cases driven by a constitutional activation of the c-KIT proto-oncogene. GISTs are generally solitary lesions. Nonetheless, multiple sporadic GISTs can occur and present as synchronous or metachronous tumors, usually associated with familial GIST...
2017: Drugs in Context
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