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https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#1
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28730672/lipid-lowering-therapy-of-everolimus-related-severe-hypertriglyceridaemia-in-a-pancreatic-neuroendocrine-tumour-pnet
#2
V De Gennaro Colonna, C Pavanello, F Rusconi, A Sartore-Bianchi, S Siena, S Castelnuovo, C R Sirtori, G Mombelli
WHAT IS KNOWN AND OBJECTIVE: Hypertriglyceridaemia (HTG) is a potentially serious side effect of everolimus therapy. We here report a case of severe HTG in an everolimus-treated patient and provide recommendations for its management. CASE SUMMARY: The patient was a 70-year-old woman, being treated with everolimus for a pancreatic neuroendocrine tumour (pNET). She developed severe HTG to a maximum of 969 mg/dL after 22 months of therapy. Treatment with fenofibrate rapidly normalized triglyceride (TG) levels...
July 21, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28728050/topoisomerase-expression-and-amplification-in-solid-tumours-analysis-of-24-262-patients
#3
Gregory M Heestand, Maria Schwaederle, Zoran Gatalica, David Arguello, Razelle Kurzrock
BACKGROUND: Topoisomerase I (TOPO1) and topoisomerase IIα (TOP2A) are specific targets of multiple chemotherapy drugs. Increased expression of TOPO1 protein and amplification of the TOP2A gene have been associated with treatment response in colorectal and breast cancers, respectively. TOPO1 and TOP2A may be potential therapeutic targets in other malignancies as well. SUMMARY OF METHODS: We analysed TOPO1 protein expression and TOP2A gene amplification in patients (n = 24,262 specimens) with diverse cancers...
July 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28724890/centrosomal-protein-55-activates-nf-%C3%AE%C2%BAb-signalling-and-promotes-pancreatic-cancer-cells-aggressiveness
#4
Tao Peng, Wei Zhou, Feng Guo, He-Shui Wu, Chun-You Wang, Li Wang, Zhi-Yong Yang
Centrosomal protein 55 (CEP55) is a microtubule-bundling protein that participants in cell mitosis. It is overexpressed in several solid tumours and promotes the growth and invasion of cancer cells. However, the role of CEP55 in pancreatic cancer (PANC) remains unclear. Herein, upregulated expression of CEP55 (associated with poor prognosis) was detected in PANC using quantitative real-time reverse transcription PCR, western blotting, and immunohistochemistry. Cell migration, colony formation, wound-healing, and Transwell matrix penetration assays, revealed that upregulation of CEP55 promoted PANC cells proliferation, migration, and invasion in vitro, whereas knockdown of CEP55 attenuated it...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720843/clinical-study-of-genomic-drivers-in-pancreatic-ductal-adenocarcinoma
#5
Michael T Barrett, Ray Deiotte, Elizabeth Lenkiewicz, Smriti Malasi, Tara Holley, Lisa Evers, Richard G Posner, Timothy Jones, Haiyong Han, Mark Sausen, Victor E Velculescu, Jeffrey Drebin, Peter O'Dwyer, Gayle Jameson, Ramesh K Ramanathan, Daniel D Von Hoff
BACKGROUND: Pancreatic ductal adenocarcinoma (PDA) is a lethal cancer with complex genomes and dense fibrotic stroma. This study was designed to identify clinically relevant somatic aberrations in pancreatic cancer genomes of patients with primary and metastatic disease enrolled and treated in two clinical trials. METHODS: Tumour nuclei were flow sorted prior to whole genome copy number variant (CNV) analysis. Targeted or whole exome sequencing was performed on most samples...
July 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28718071/cancer-survival-in-adult-patients-in-spain-results-from-nine-population-based-cancer-registries
#6
M D Chirlaque, D Salmerón, J Galceran, A Ameijide, A Mateos, A Torrella, R Jiménez, N Larrañaga, R Marcos-Gragera, E Ardanaz, M Sant, P Minicozzi, C Navarro, M J Sánchez
INTRODUCTION: With the aim of providing cancer control indicators, this work presents cancer survival in adult (≥15 years) patients in Spain diagnosed during the period 2000-2007 from Spanish cancer registries participating in the EUROCARE project. METHODS: Cancer cases from nine Spanish population-based cancer registries were included and analysed as a whole. All primary malignant neoplasms diagnosed in adult patients were eligible for the analysis. Cancer patients were followed until 31 December 2008...
July 17, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28715967/hyperthermia-enhanced-targeted-drug-delivery-using-magnetic-resonance-guided-focussed-ultrasound-a-pre-clinical-study-in-a-genetic-model-of-pancreatic-cancer
#7
Navid Farr, Yak-Nam Wang, Samantha D'Andrea, Frank Starr, Ari Partanen, Kayla M Gravelle, Jeannine S McCune, Linda J Risler, Stella G Whang, Amy Chang, Sunil R Hingorani, Donghoon Lee, Joo Ha Hwang
PURPOSE: The lack of effective treatment options for pancreatic cancer has led to a 5-year survival rate of just 8%. Here, we evaluate the ability to enhance targeted drug delivery using mild hyperthermia in combination with the systemic administration of a low-temperature sensitive liposomal formulation of doxorubicin (LTSL-Dox) using a relevant model for pancreas cancer. MATERIALS AND METHODS: Experiments were performed in a genetically engineered mouse model of pancreatic cancer (KPC mice: LSL-Kras(G12D/+); LSL-Trp53(R172H/+); Pdx-1-Cre)...
July 17, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28711377/pancreas-exocrine-replacement-therapy-is-associated-with-increased-survival-following-pancreatoduodenectomy-for-periampullary-malignancy
#8
Keith J Roberts, Harald Schrem, James Hodson, Roberta Angelico, Bobby V M Dasari, Chris A Coldham, Ravi Marudanayagam, Robert P Sutcliffe, Paolo Muiesan, John Isaac, Darius F Mirza
BACKGROUND: Although many patients undergoing pancreatoduodenectomy (PD) for cancer have pancreatic exocrine insufficiency, pancreatic enzyme replacement therapy (PERT) is not routinely used, and effects upon post-operative survival are unclear. METHODS: This review of patients undergoing PD for periampullary malignancy sought to test for an association between PERT and overall survival, with post-hoc subgroup analysis performed after stratifying patients by the year of surgery, pancreatic duct width and tumour type...
July 12, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28703940/ebselen-impairs-cellular-oxidative-state-and-induces-endoplasmic-reticulum-stress-and-activation-of-crucial-mitogen-activated-protein-kinases-in-pancreatic-tumour-ar42j-cells
#9
Patricia Santofimia-Castaño, Alicia Izquierdo-Alvarez, María Plaza-Davila, Antonio Martinez-Ruiz, Miguel Fernandez-Bermejo, Jose M Mateos-Rodriguez, Gines M Salido, Antonio Gonzalez
Ebselen (2-phenyl-1,2-benzisoselenazol-3(2H)-one) is an organoselenium radical scavenger compound, which has strong antioxidant and anti-inflammatory effects. However, evidence suggests that this compound could exert deleterious actions on cell physiology. In this study we have analyzed the effect of ebselen on rat pancreatic AR42J cells. Cytosolic free-Ca2(+) concentration ([Ca(2+) ]c ), cellular oxidative status, setting of endoplasmic reticulum stress and phosphorylation of major mitogen-activated protein kinases were analyzed...
July 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28701723/the-lncrna-malat1-acts-as-a-competing-endogenous-rna-to-regulate-kras-expression-by-sponging-mir-217-in-pancreatic-ductal-adenocarcinoma
#10
Pingping Liu, Haiyan Yang, Jing Zhang, Xiaozhong Peng, Zhaohui Lu, Weimin Tong, Jie Chen
The long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript-1 (MALAT1) has been shown to play an important role in tumourigenesis. The aim of this study was to investigate the role of MALAT1 in pancreatic ductal adenocarcinoma. MALAT1 is expressed at higher levels in pancreatic ductal adenocarcinoma (PDAC) tissues than in nontumour tissues and in metastatic PDAC than in localized tumours. Patients with PDAC and high MALAT1 expression levels have shorter overall survival than patients with PDAC and low MALAT1 expression levels...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700485/value-of-contrast-enhanced-ultrasound-in-differential-diagnosis-of-solid-lesions-of-pancreas-slp-a-systematic-review-and-a-meta-analysis
#11
Li Ran, Wenli Zhao, Ye Zhao, Huaien Bu
BACKGROUND: Contrast-enhanced ultrasound (CEUS) is considered a novel method for diagnosing pancreatic cancer, but currently, there is no conclusive evidence of its accuracy. Using CEUS in discriminating between pancreatic carcinoma and other pancreatic lesions, we aimed to evaluate the diagnostic accuracy of CEUS in predicting pancreatic tumours. METHODS: Relevant studies were selected from the PubMed, Cochrane Library, Elsevier, CNKI, VIP, and WANFANG databases dating from January 2006 to May 2017...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28697176/hmga1-expression-levels-are-elevated-in-pancreatic-intraepithelial-neoplasia-cells-in-the-ptf1a-cre-lsl-krasg12d-transgenic-mouse-model-of-pancreatic-cancer
#12
Michelle J Veite-Schmahl, William C Joesten, Michael A Kennedy
BACKGROUND: Pancreatic cancer is currently the third leading cause of cancer deaths in the United States and it is predicted to become the second by the year 2030. High-mobility group A1 protein (HMGA1) is an oncogenic transcription factor, localised and active in cell nuclei, that is linked to tumour progression in many human cancers, including pancreatic cancer. Overexpression of HMGA1 renders cancer cells resistant to chemotherapy. Although the Ptf1a-Cre; LSL-KrasG12D transgenic mouse is perhaps the most widely utilised animal model for human pancreatic cancer, expression levels of HMGA1 in pancreata from this mouse model have not been characterised...
July 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28692431/differing-mechanisms-of-thrombin-generation-in-live-haematological-and-solid-cancer-cells-determined-by-calibrated-automated-thrombography
#13
Mufuliat Adeola Adesanya, Anthony Maraveyas, Leigh Madden
: Calibrated automated thrombography (CAT) is emerging as a reliable tool for real-time estimation of thrombin generation potential. There is a clinical need for knowledge about the pathways underlying the thrombotic phenotype of different malignancies. Cells from solid (e.g. pancreatic cancer; n = 7) and malignant haematological cell lines (e.g. multiple myeloma; n = 5) were evaluated for thrombin generation, using CAT, with the addition of control plasma (NormTrol; Helena Biosciences, Gateshead, UK)) or plasma deficient in coagulation factors VII and XII...
July 7, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28690201/neurotensin-receptor-1-facilitates-intracellular-and-transepithelial-delivery-of-macromolecules
#14
Joanna L Bird, Rachael Simpson, Driton Vllasaliu, Alan D Goddard
G protein-coupled receptors are expressed on the surface of eukaryotic cells and internalise in response to ligand binding. The actions of the hormone and neurotransmitter neurotensin (NT) are predominantly mediated by specific interactions with one such receptor. Neurotensin receptor 1 (NTS1), which is upregulated in a variety of cancers, including pancreatic and breast tumours. NTS1 could therefore serve as a target for selective delivery of therapeutics. This study characterised the expression of NTS1 in HEK293 cells, as well as both polarised and non-polarised intestinal epithelial Caco-2 cells...
July 6, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28687745/biochemical-and-genetic-predictors-of-overall-survival-in-patients-with-metastatic-pancreatic-cancer-treated-with-capecitabine-and-nab-paclitaxel
#15
Daniela Bianconi, Gerwin Heller, Daniel Spies, Merima Herac, Andreas Gleiss, Sandra Liebmann-Reindl, Matthias Unseld, Markus Kieler, Werner Scheithauer, Berthold Streubel, Christoph C Zielinski, Gerald W Prager
Pancreatic cancer is a dismal disease with a mortality rate almost similar to its incidence rate. To date, there are neither validated predictive nor prognostic biomarkers for this lethal disease. Thus, the aim of the present study was to retrospectively investigate the capability of biochemical parameters and molecular profiles to predict survival of patients with metastatic pancreatic ductal adenocarcinoma (mPDAC) who participated in a phase II clinical trial to test the safety and efficacy of the combination treatment of capecitabine plus nab-paclitaxel...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28685876/eus-fna-of-the-merkel-cell-carcinoma-metastasis-to-the-pancreas-cytomorphology-and-immunocytochemistry-on-direct-cytological-smears
#16
T Stoos-Veic, M Tadic, G Aralica, V Milicic, C Tomasovic-Loncaric
OBJECTIVE: To report two cases of Merkel cell carcinoma (MCC) metastatic to the pancreas diagnosed with endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) and to add the case of concomitant chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and MCC to the literature. The aim is to alert the cytopathologists once more to the problems of differential diagnosis of pancreatic metastasis of MCC and to describe the possibilities of ancillary methods performed on direct cytological smears...
July 6, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28685754/collagen-derived-proline-promotes-pancreatic-ductal-adenocarcinoma-cell-survival-under-nutrient-limited-conditions
#17
Orianne Olivares, Jared R Mayers, Victoire Gouirand, Margaret E Torrence, Tristan Gicquel, Laurence Borge, Sophie Lac, Julie Roques, Marie-Noëlle Lavaut, Patrice Berthezène, Marion Rubis, Veronique Secq, Stéphane Garcia, Vincent Moutardier, Dominique Lombardo, Juan Lucio Iovanna, Richard Tomasini, Fabienne Guillaumond, Matthew G Vander Heiden, Sophie Vasseur
Tissue architecture contributes to pancreatic ductal adenocarcinoma (PDAC) phenotypes. Cancer cells within PDAC form gland-like structures embedded in a collagen-rich meshwork where nutrients and oxygen are scarce. Altered metabolism is needed for tumour cells to survive in this environment, but the metabolic modifications that allow PDAC cells to endure these conditions are incompletely understood. Here we demonstrate that collagen serves as a proline reservoir for PDAC cells to use as a nutrient source when other fuels are limited...
July 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28681224/percutaneous-image-guided-pancreatic-duct-drainage-technique-results-and-expected-benefits
#18
M Mizandari, T Azrumelashvili, J Kumar, N Habib
PURPOSE: The aim of this study is to provide a technical detail and feasibility of percutaneous image-guided pancreatic duct (PD) drainage and to discuss its subtleties in a series of patients with obstructed PD. MATERIALS AND METHODS: Thirty patients presenting with PD obstruction from pancreatic head tumour or pancreatitis were subjected to percutaneous image-guided PD drainage under a guidance of ultrasound or computed tomography. Following the successful puncture of PD, a locking loop drainage catheter was placed using conventional guidewire techniques under real-time fluoroscopy guidance...
July 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28676646/identifying-the-neck-margin-status-of-ductal-adenocarcinoma-in-the-pancreatic-head-by-multiphoton-microscopy
#19
Jian Xu, Youting Chen, Hong Chen, Zhipeng Hong, Zheng Shi, Shuangmu Zhuo, Xiaoqin Zhu, Jianxin Chen
Complete surgical resection is the only option for improving the survival of patients with ductal adenocarcinoma in the pancreatic head. After resection, determining the status of resection margins (RMs) is crucial for deciding on the nature of the follow-up treatment. The purpose of this study was to evaluate whether multiphoton microscopy (MPM) could be considered a reliable tool for determining the status of pancreatic neck margins by identifying tumour cells of ductal adenocarcinoma in these margins in the pancreatic head, and our results were affirmative...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28673320/the-clinical-importance-of-tumour-infiltrating-macrophages-and-dendritic-cells-in-periampullary-adenocarcinoma-differs-by-morphological-subtype
#20
Sebastian Lundgren, Emelie Karnevi, Jacob Elebro, Björn Nodin, Mikael C I Karlsson, Jakob Eberhard, Karin Leandersson, Karin Jirström
BACKGROUND: Dendritic cells (DC) and tumour-associated macrophages (TAM) are essential in linking the innate and adaptive immune response against tumour cells and tumour progression. These cells are also potential target for immunotherapy as well as providing a handle to investigate immune status in the tumour microenvironment. The aim of the present study was to examine their impact on prognosis and chemotherapy response in periampullary adenocarcinoma, including pancreatic cancer, with particular reference to morphological subtype...
July 3, 2017: Journal of Translational Medicine
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