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https://www.readbyqxmd.com/read/28197362/prognostic-impact-of-the-expression-of-ncr1-and-ncr3-nk-cell-receptors-and-pd-l1-on-advanced-non-small-cell-lung-cancer
#1
Laetitia Fend, Sylvie Rusakiewicz, Julien Adam, Bérangère Bastien, Anne Caignard, Meriem Messaoudene, Christina Iribarren, Isabelle Cremer, Aurélien Marabelle, Christophe Borg, Michaela Semeraro, Luc Barraud, Jean-Marc Limacher, Alexander Eggermont, Guido Kroemer, Laurence Zitvogel
The putative contribution of natural killer (NK) cells to immunosurveillance in non-small cell lung cancer (NSCLC) has been an ongoing conundrum. Here, we used a readily standardizable quantitative real time polymerase chain reaction (qRT-PCR) to measure the expression of NK cell receptors in total peripheral blood mononuclear cells (PBMC) from healthy volunteers (HV), patients with gastrointestinal stromal tumors (GIST), neuroblastoma (NB), melanoma or NSCLC. We quantified NCR1 (which codes for NKp46) and NCR3 (which codes for NKp30), as well as that of three NCR3 splice variants (which give rise to immunostimulatory NKp30A and NKp30B, as well as to immunosuppressive NKp30C)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28192400/oncogenic-signaling-by-kit-tyrosine-kinase-occurs-selectively-on-the-golgi-apparatus-in-gastrointestinal-stromal-tumors
#2
Y Obata, K Horikawa, T Takahashi, Y Akieda, M Tsujimoto, J A Fletcher, H Esumi, T Nishida, R Abe
Gastrointestinal stromal tumors (GISTs) are caused by gain-of-function mutations in the Kit receptor tyrosine kinase. Most primary GIST patients respond to the Kit inhibitor imatinib, but this drug often becomes ineffective because of secondary mutations in the Kit kinase domain. The characteristic intracellular accumulation of imatinib-sensitive and -resistant Kit protein is well documented, but its relationship to oncogenic signaling remains unknown. Here, we show that in cancer tissue from primary GIST patients as well as in cell lines, mutant Kit accumulates on the Golgi apparatus, whereas normal Kit localizes to the plasma membrane (PM)...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28186088/current-status-of-immunotherapy-for-gastrointestinal-stromal-tumor
#3
REVIEW
Y Tan, J C Trent, B A Wilky, D A Kerr, A E Rosenberg
Gastrointestinal stromal tumors (GIST) contain tumor-infiltrating immune cells and their presence provides an opportunity and rationale for developing effective forms of immunotherapy. The types of tumor-infiltrating inflammatory cells and relevant immune checkpoint inhibitors are the focus of active investigation. The most numerous tumor-infiltrating inflammatory cells are tumor-associated macrophages (TAMs) and CD3+ T cells. Studies have shown that patients with GISTs that harbor increased numbers of CD3+ T cells have better outcomes...
February 10, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28185561/optimized-pipeline-of-mutect-and-gatk-tools-to-improve-the-detection-of-somatic-single-nucleotide-polymorphisms-in-whole-exome-sequencing-data
#4
Ítalo Faria do Valle, Enrico Giampieri, Giorgia Simonetti, Antonella Padella, Marco Manfrini, Anna Ferrari, Cristina Papayannidis, Isabella Zironi, Marianna Garonzi, Simona Bernardi, Massimo Delledonne, Giovanni Martinelli, Daniel Remondini, Gastone Castellani
BACKGROUND: Detecting somatic mutations in whole exome sequencing data of cancer samples has become a popular approach for profiling cancer development, progression and chemotherapy resistance. Several studies have proposed software packages, filters and parametrizations. However, many research groups reported low concordance among different methods. We aimed to develop a pipeline which detects a wide range of single nucleotide mutations with high validation rates. We combined two standard tools - Genome Analysis Toolkit (GATK) and MuTect - to create the GATK-LODN method...
November 8, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28163271/intestinal-gastrointestinal-stromal-tumor-in-a-cat
#5
Akihisa Suwa, Tetsuya Shimoda
A 12-year-old, 3.6-kg, spayed female domestic shorthaired cat had a 2-month history of anorexia and weight loss. Abdominal ultrasonography and computed tomography revealed an exophytic mass originating from the jejunum with very poor central and poor peripheral contrast enhancement. On day 14, surgical resection of the jejunum and mass with 5-cm margins and an end-to-end anastomosis were performed. Histopathological examination revealed the mass was a transmural, invasive cancer showing exophytic growth and originating from the small intestinal muscle layer...
February 4, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28144126/transanal-endoscopic-operation-for-benign-rectal-lesions-and-t1-carcinoma
#6
Mathieu D'Hondt, Emi Yoshihara, Lieven Dedrye, Koen Vindevoghel, Frederiek Nuytens, Hans Pottel
BACKGROUND AND OBJECTIVES: Transanal endoscopic operation (TEO) is a minimally invasive technique used for local excision of benign and selected malignant rectal lesions. The purpose of this study was to investigate the feasibility, safety, and oncological outcomes of the procedure and to report the experience in 3 centers. METHODS: Retrospective review of a prospectively collected database was performed of all patients with benign lesions or ≤cT1N0 rectal cancer who underwent TEO with curative intent at 3 Belgian centers (2012 through 2014)...
January 2017: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28133332/-multidisciplinary-treatment-for-high-risk-gist-of-the-stomach
#7
Tomo Ishida, Shigeyuki Tamura, Atsushi Takeno, Kohei Murakami, Yohei Nose, Ryota Mori, Yasuo Oneda, Ryuichi Kuwahara, Takuya Sakamoto, Atsushi Naito, Yoshiteru Katsura, Yoshiaki Ohmura, Yoshinori Kagawa, Yutaka Takeda, Takeshi Kato
A 59-year-old man underwent total gastrectomy(with D2 dissection)and cholecystectomy for gastric cancer and a submucosal tumor of the stomach. The specimen was immunohistochemically positive for c-kit, the Ki-67 label index was 10%, and the mitotic count was 20/HPF. Finally, the patient was diagnosed with high-risk gastrointestinal stromal cancer with normal type gastric cancer. After discharge from hospital, we started administration of TS-1 as adjuvant therapy for the gastric cancer. As multiple recurrences of the GIST in the abdomen developed, the patient underwent 3 radical local resections...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133239/-a-case-of-small-intestinal-gastrointestinal-stromal-tumor-gist-with-synchronous-colonic-cancer-and-gastric-cancer-at-a-different-time
#8
Yukika Tsukamoto, Hisami Oshima, Takashi Katsumori, Hiromitsu Hamaguchi, Shinichi Yamamoto, Tomohiro Iwanaga, Susumu Ohkawara
The patient was a 70-year-old woman with a gastrointestinalstromaltumor (GIST)of the small intestine and synchronous colonic cancer, who underwent laparoscopic right colectomy and resection of the small intestine. We started imatinib therapy because GIST belongs to a high-risk group, according to the modified Fletcher classification. Gastric cancer was diagnosed 2 years after the start of imatinib therapy. Only 4 of the 12 GIST cases seen at our institution over the last 5 years were complicated by another cancer...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28098915/somatic-mutational-spectrum-analysis-in-a-prospective-series-of-104-gastrointestinal-stromal-tumors
#9
David Guenat, Olivier Deroo, Sandrine Magnin, Loïc Chaigneau, Franck Monnien, Christophe Borg, Christiane Mougin, Jean-François Emile, Jean-Luc Prétet
Gastrointestinal stromal tumors (GISTs) are mesenchymal tumors distinguished by driver mutations in proto-oncogenes KIT or PDGFRA in 85-90% of cases. These mutations have been linked to the response to imatinib, a multikinase inhibitor, and have independent prognostic impact. Here, we describe the prospective study of the molecular characteristics of 104 GISTs from French adult patients analyzed routinely through the National Hospital Program of Molecular Cancer Diagnosis. All patients with GISTs diagnosed at the University Hospital of Besançon between August 2005 and October 2014 were prospectively included in the present study...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28097468/outcomes-of-primary-colorectal-sarcoma-a-national-cancer-data-base-ncdb-review
#10
Cornelius A Thiels, John R Bergquist, Adam C Krajewski, Hee Eun Lee, Heidi Nelson, Kellie L Mathis, Elizabeth B Habermann, Robert R Cima
INTRODUCTION: Primary colorectal sarcomas are a rare entity with anecdotally poor outcomes. We sought to inform surgeons, oncologists, and researchers of the characteristics and outcomes of these understudied and difficult-to-manage tumors. METHODS: The National Cancer Data Base (NCDB) was queried for patients with pathologically confirmed primary sarcoma of the colon or rectum (1998-2012). Gastrointestinal stromal tumors were excluded. Unadjusted overall survival was reported using the Kaplan-Meier method...
January 17, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28096828/intramural-esophageal-tumors
#11
Mariusz P Łochowski, Katarzyna Kozak, Marek Rębowski, Józef Kozak
INTRODUCTION: Intramural esophageal tumors (IET) are located between unchanged mucous membrane and muscularis mucosae. They can be both benign and malignant. AIM: To evaluate diagnostic and therapeutic difficulties of IET. MATERIAL AND METHODS: During the years 2010-2015, 11 patients with IET were treated in our clinic. Diagnostics included gastroscopy, computed tomography of the chest, endoscopic ultrasound (EUS) guided fine needle biopsy, and positron emission tomography (PET) of the esophagus in cases with no histopathological confirmation...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28077435/blu-285-dcc-2618-show-activity-against-gist
#12
(no author information available yet)
Tyrosine kinase inhibitors may initially control gastrointestinal stromal tumors, but most patients eventually experience disease progression due to activation loop mutations, which are resistant to approved drugs. However, phase I trials suggest that the cancer is sensitive to two new agents: BLU-285 and DCC-2618. In addition, liquid biopsies, which were used to follow patients during the trials, may be valuable tools in tracking disease progression and assessing tumor heterogeneity.
January 11, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28072616/gastrointestinal-stromal-tumor-showing-intense-tracer-uptake-on-psma-pet-ct
#13
Benjamin Noto, Matthias Weckesser, Boris Buerke, Michaela Pixberg, Nemanja Avramovic
A 70-year-old man with suspected prostate cancer was referred for Ga-PSMA-HBED-CC PET/CT (short PSMA PET/CT) for staging of tumor extent. Apart from vivid tracer uptake in the prostate gland and osseous metastasis, PSMA PET/CT revealed a large soft tissue mass with calcifications in the left upper abdomen showing intense tracer uptake. Histologic examination revealed the mass to be a gastrointestinal stromal tumor.
March 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28055310/gastrointestinal-stromal-tumors-gist-facing-cell-death-between-autophagy-and-apoptosis
#14
Gloria Ravegnini, Giulia Sammarini, Margherita Nannini, Maria A Pantaleo, Guido Biasco, Patrizia Hrelia, Sabrina Angelini
Autophagy and apoptosis are 2 fundamental biological mechanisms that may cooperate or be antagonistic, although both are involved in deciding the fate of cells in physiological or pathological conditions. These 2 mechanisms coexist simultaneously in cells and share common upstream signals and stimuli. Autophagy and apoptosis play pivotal roles in cancer development. Autophagy plays a key function in maintaining tumor cell survival by providing energy during unfavorable metabolic conditions through its recycling mechanism, and supporting the high energy requirement for metabolism and growth...
January 5, 2017: Autophagy
https://www.readbyqxmd.com/read/28050726/preoperative-chemotherapy-and-survival-for-large-anorectal-gastrointestinal-stromal-tumors-a-national-analysis-of-333-cases
#15
Alexander T Hawkins, Katerina O Wells, Devi Mukkai Krishnamurty, Steven R Hunt, Matthew G Mutch, Sean C Glasgow, Paul E Wise, Matthew L Silviera
PURPOSE: Anorectal gastrointestinal stromal tumors (GISTs) are exceedingly rare, and management remains controversial in regard to local resection (LR) and preoperative chemotherapy. METHODS: The National Cancer Data Base was queried from 1998 to 2012 for cases of GIST resection in the rectum or anus. Patient demographics, type of surgery (LR vs. radical excision [RE]), short-term outcomes, and overall survival (OS) were analyzed. Preoperative chemotherapy was recorded following the US FDA approval of imatinib in 2002...
January 3, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28042329/genome-wide-lncrna-microarray-profiling-identifies-novel-circulating-lncrnas-for-detection-of-gastric-cancer
#16
Kecheng Zhang, Hongzhi Shi, Hongqing Xi, Xiaosong Wu, Jianxin Cui, Yunhe Gao, Wenquan Liang, Chong Hu, Yi Liu, Jiyang Li, Ning Wang, Bo Wei, Lin Chen
Long non-coding RNAs (lncRNAs) can serve as blood-based biomarkers for cancer detection. To identify novel lncRNA biomarkers for gastric cancer (GC), we conducted, for the first time, genome-wide lncRNA screening analysis in two sets of samples: five paired preoperative and postoperative day 14 plasma samples from GC patients, and tissue samples from tumor and adjacent normal tissues. Candidate tumor-related lncRNAs were then quantitated and evaluated in three independent phases comprising 321 participants...
2017: Theranostics
https://www.readbyqxmd.com/read/28039147/incorporation-of-nlr-into-nih-stratification-system-increases-predictive-accuracy-for-surgically-resected-gastrointestinal-stromal-tumors
#17
Anwei Xue, Xiaodong Gao, Yong Fang, Ping Shu, Jiaqian Ling, Kuntang Shen, Yihong Sun, Jing Qin, Xinyu Qin, Yingyong Hou
Previous studies have reported that preoperative neutrophil-to-lymphocyte (NLR) and platelet-to-lymphocyte ratios were prognostic for various types of cancers. The aim of this study was to investigate the predictive utilities of preoperative peripheral blood counts in patients with gastrointestinal stromal tumors (GISTs). We enrolled 510 consecutive, previously untreated patients who underwent surgery for primary, localized GISTs. The relationship between recurrence-free survival and outcome variables was assessed by univariate and multivariate analyses, while the clinicopathologic relevance of NLR was determined using the Chi-square test...
December 29, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28029307/surgical-management-of-wild-type-gastrointestinal-stromal-tumors-a-report-from-the-national-institutes-of-health-pediatric-and-wildtype-gist-clinic
#18
Christopher B Weldon, Arin L Madenci, Sosipatros A Boikos, Katherine A Janeway, Suzanne George, Margaret von Mehren, Alberto S Pappo, Joshua D Schiffman, Jennifer Wright, Jonathan C Trent, Karel Pacak, Constantine A Stratakis, Lee J Helman, Michael P La Quaglia
Purpose Wild-type gastrointestinal stromal tumors (WT-GISTs) that lack KIT or PDGFRA mutations represent a unique subtype of GIST that predominantly affects children. We sought to determine the effect on event-free survival (EFS) of staging variables, extent of resection, and repeat resection of tumors. Methods In 2008, a WT-GIST clinic was established at the National Cancer Institute, allowing the development of a large clinical database. We included participants who underwent resection of WT-GIST. Associations with EFS (ie, freedom from disease progression or recurrence) were evaluated using the Kaplan-Meier method and Cox proportional hazards modeling...
December 28, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28024574/mirna-218-loaded-carboxymethyl-chitosan-tocopherol-nanoparticle-to-suppress-the-proliferation-of-gastrointestinal-stromal-tumor-growth
#19
Lin Tu, Ming Wang, Wen-Yi Zhao, Zi-Zhen Zhang, De-Feng Tang, Ye-Qian Zhang, Hui Cao, Zhi-Gang Zhang
Gastrointestinal stromal tumors (GIST) are one of the most common forms of mesenchymal cancers of the gastrointestinal tract. Although chemotherapeutic drugs inhibited the proliferation of GIST, however, sizable proportion of people developed resistance and therefore difficult to treat. In the present study, O-carboxymethyl chitosan (OCMC)-tocopherol polymer conjugate was synthesized and formulated into stable polymeric nanoparticles. The main aim of present study was to increase the therapeutic efficacy of miR-218 in GIST...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28008216/understanding-genetic-breast-cancer-risk-processing-loci-of-the-brca-gist-intelligent-tutoring-system
#20
Christopher R Wolfe, Valerie F Reyna, Colin L Widmer, Elizabeth M Cedillos-Whynott, Priscila G Brust-Renck, Audrey M Weil, Xiangen Hu
The BRCA Gist Intelligent Tutoring System helps women understand and make decisions about genetic testing for breast cancer risk. BRCA Gist is guided by Fuzzy-Trace Theory, (FTT) and built using AutoTutor Lite. It responds differently to participants depending on what they say. Seven tutorial dialogues requiring explanation and argumentation are guided by three FTT concepts: forming gist explanations in one's own words, emphasizing decision-relevant information, and deliberating the consequences of decision alternatives...
July 2016: Learning and Individual Differences
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