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https://www.readbyqxmd.com/read/28207436/multicenter-observational-study-of-adhesion-formation-after-open-and-laparoscopic-surgery-for-colorectal-cancer
#1
Martijn W J Stommel, Richard P G Ten Broek, Chema Strik, Gerrit D Slooter, Cornelis Verhoef, Dirk J Grünhagen, Peter van Duijvendijk, Marc H A Bemelmans, Marcel den Dulk, Colin Sietses, Tjarda N T van Heek, Peter B van den Boezem, Johannes H W de Wilt, Harry van Goor
OBJECTIVE: The aim of this study was to compare adhesion formation after laparoscopic and open colorectal cancer resection. SUMMARY OF BACKGROUND DATA: After colorectal surgery, most patients develop adhesions, with a high burden of complications. Laparoscopy seems to reduce adhesion formation, but evidence is poor. Trials comparing open- and laparoscopic colorectal surgery have never assessed adhesion formation. METHODS: Data on adhesions were gathered during resection of colorectal liver metastases...
February 15, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28205537/her2-alterations-in-muscle-invasive-bladder-cancer-patient-selection-beyond-protein-expression-for-targeted-therapy
#2
Bernhard Kiss, Alexander W Wyatt, James Douglas, Veronika Skuginna, Fan Mo, Shawn Anderson, Diana Rotzer, Achim Fleischmann, Vera Genitsch, Tetsutaro Hayashi, Maja Neuenschwander, Christine Buerki, Elai Davicioni, Colin Collins, George N Thalmann, Peter C Black, Roland Seiler
Although the introduction of novel targeted agents has improved patient outcomes in several human cancers, no such advance has been achieved in muscle-invasive bladder cancer (MIBC). However, recent sequencing efforts have begun to dissect the complex genomic landscape of MIBC, revealing distinct molecular subtypes and offering hope for implementation of targeted therapies. Her2 (ERBB2) is one of the most established therapeutic targets in breast and gastric cancer but agents targeting Her2 have not yet demonstrated anti-tumor activity in MIBC...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203409/practice-patterns-in-venous-thromboembolism-vte-prophylaxis-in-thoracic-surgery-a-comprehensive-canadian-delphi-survey
#3
John Agzarian, Lori-Ann Linkins, Laura Schneider, Waël C Hanna, Christian J Finley, Colin Schieman, Marc De Perrot, Mark Crowther, James Douketis, Yaron Shargall
BACKGROUND: The incidence of venous thromboembolic events (VTE) after resection of thoracic malignancies can reach 15%, but prophylaxis guidelines are yet to be established. We aimed to survey Canadian practitioners regarding perioperative risk factors for VTE, impact of those factors on extended prophylaxis selection, type of preferred prophylaxis, and timing of initiation and duration of thromboprophylaxis. METHODS: A modified Delphi survey was undertaken over three rounds with thoracic surgeons, thoracic anesthesiologists and thrombosis experts across Canada...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28199152/can-radiologists-predict-the-presence-of-ductal-carcinoma-in-situ-and-invasive-breast-cancer
#4
Shadi Aminololama-Shakeri, Chris I Flowers, Christine E McLaren, Dorota J Wisner, Jade de Guzman, Joan E Campbell, Lawrence W Bassett, Haydee Ojeda-Fournier, Karen Gerlach, Jonathan Hargreaves, Sarah L Elson, Hanna Retallack, Bonnie N Joe, Stephen A Feig, Colin J Wells
OBJECTIVE: We hypothesize that radiologists' estimated percentage likelihood assessments for the presence of ductal carcinoma in situ (DCIS) and invasive cancer may predict histologic outcomes. MATERIALS AND METHODS: Two hundred fifty cases categorized as BI-RADS category 4 or 5 at four University of California Medical Centers were retrospectively reviewed by 10 academic radiologists with a range of 1-39 years in practice. Readers assigned BI-RADS category (1, 2, 3, 4a, 4b, 4c, or 5), estimated percentage likelihood of DCIS or invasive cancer (0-100%), and confidence rating (1 = low, 5 = high) after reviewing screening and diagnostic mammograms and ultrasound images...
February 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28191281/switching-off-malignant-mesothelioma-exploiting-the-hypoxic-microenvironment
#5
REVIEW
Noushin Nabavi, Kevin L Bennewith, Andrew Churg, Yuzhuo Wang, Colin C Collins, Luciano Mutti
Malignant mesotheliomas are aggressive, asbestos-related cancers with poor patient prognosis, typically arising in the mesothelial surfaces of tissues in pleural and peritoneal cavity. The relative unspecific symptoms of mesotheliomas, misdiagnoses, and lack of precise targeted therapies call for a more critical assessment of this disease. In the present review, we categorize commonly identified genomic aberrations of mesotheliomas into their canonical pathways and discuss targeting these pathways in the context of tumor hypoxia, a hallmark of cancer known to render solid tumors more resistant to radiation and most chemo-therapy...
November 2016: Genes & Cancer
https://www.readbyqxmd.com/read/28188816/a-chemical-genomics-approach-to-drug-reprofiling-in-oncology-antipsychotic-drug-risperidone-as-a-potential-adenocarcinoma-treatment
#6
Suzanne J Dilly, Andrew J Clark, Andrew Marsh, Daniel A Mitchell, Ricky Cain, Colin W G Fishwick, Paul C Taylor
Drug reprofiling is emerging as an effective paradigm for discovery of cancer treatments. Herein, an antipsychotic drug is immobilised using the Magic Tag(®) chemical genomics tool and screened against a T7 bacteriophage displayed library of polypeptides from Drosophila melanogaster, as a whole genome model, to uncover an interaction with a section of 17-β-HSD10, a proposed prostate cancer target. A computational study and enzyme inhibition assay with full length human 17-β-HSD10 identifies risperidone as a drug reprofiling candidate...
February 8, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28187132/gwas-for-serum-galactose-deficient-iga1-implicates-critical-genes-of-the-o-glycosylation-pathway
#7
Krzysztof Kiryluk, Yifu Li, Zina Moldoveanu, Hitoshi Suzuki, Colin Reily, Ping Hou, Jingyuan Xie, Nikol Mladkova, Sindhuri Prakash, Clara Fischman, Samantha Shapiro, Robert A LeDesma, Drew Bradbury, Iuliana Ionita-Laza, Frank Eitner, Thomas Rauen, Nicolas Maillard, Francois Berthoux, Jürgen Floege, Nan Chen, Hong Zhang, Francesco Scolari, Robert J Wyatt, Bruce A Julian, Ali G Gharavi, Jan Novak
Aberrant O-glycosylation of serum immunoglobulin A1 (IgA1) represents a heritable pathogenic defect in IgA nephropathy, the most common form of glomerulonephritis worldwide, but specific genetic factors involved in its determination are not known. We performed a quantitative GWAS for serum levels of galactose-deficient IgA1 (Gd-IgA1) in 2,633 subjects of European and East Asian ancestry and discovered two genome-wide significant loci, in C1GALT1 (rs13226913, P = 3.2 x 10-11) and C1GALT1C1 (rs5910940, P = 2...
February 10, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28186482/the-acceptability-of-the-intervention-revie-%C3%A2-the-nurses%C3%A2-perceptions-and-experiences
#8
Maria Goreti Da Rocha Rodrigues, Sophie Colin, Maya Shaha, Sophie Pautex
Persons with advanced cancer experience high levels of existential distress due to being confronted with their mortality, which leads to feelings of lack of sense, or discouragement. It is important to develop interventions to relieve existential distress to promote the dignity of persons with advanced cancer in order to help them live this difficult experience in the best possible way. A new intervention, called Revie ⊕ and conducted by nurses, was developed. A feasibility study was conducted with 41 patients with advanced cancer in the ambulatory and hospital sector of a university hospital in Switzerland to determine the acceptability of Revie ⊕...
1, 2016: Recherche en Soins Infirmiers
https://www.readbyqxmd.com/read/28166206/real-time-visualization-of-perforin-nanopore-assembly
#9
Carl Leung, Adrian W Hodel, Amelia J Brennan, Natalya Lukoyanova, Sharon Tran, Colin M House, Stephanie C Kondos, James C Whisstock, Michelle A Dunstone, Joseph A Trapani, Ilia Voskoboinik, Helen R Saibil, Bart W Hoogenboom
Perforin is a key protein of the vertebrate immune system. Secreted by cytotoxic lymphocytes as soluble monomers, perforin can self-assemble into oligomeric pores of 10-20 nm inner diameter in the membranes of virus-infected and cancerous cells. These large pores facilitate the entry of pro-apoptotic granzymes, thereby rapidly killing the target cell. To elucidate the pathways of perforin pore assembly, we carried out real-time atomic force microscopy and electron microscopy studies. Our experiments reveal that the pore assembly proceeds via a membrane-bound prepore intermediate state, typically consisting of up to approximately eight loosely but irreversibly assembled monomeric subunits...
February 6, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28161044/human-exposure-and-risk-assessment-to-airborne-pesticides-in-a-rural-french-community
#10
Clara Coscollà, Antonio López, Abderrazak Yahyaoui, Patrice Colin, Corine Robin, Quentin Poinsignon, Vicent Yusà
Outdoor air samples collected during the pesticide agricultural application period (spring and summer) from a rural community in the Centre Region (France) were analyzed to investigate temporal variation of atmospheric pesticide levels (2006-2013) and human inhalation exposure in adults, children and infants. The most frequently detected pesticides were herbicides (trifluralin, pendimethalin), fungicides (chlorothalonil) and insecticides (lindane and α-endosulfan). The three currently-used pesticides most frequently detected presented concentrations ranging from 0...
February 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28152546/a-phase-1-dose-escalation-and-expansion-study-of-binimetinib-mek162-a-potent-and-selective-oral-mek1-2-inhibitor
#11
Johanna C Bendell, Milind Javle, Tanios S Bekaii-Saab, Richard S Finn, Zev A Wainberg, Daniel A Laheru, Colin D Weekes, Benjamin R Tan, Gazala N Khan, Mark M Zalupski, Jeffrey R Infante, Suzanne Jones, Kyriakos P Papadopoulos, Anthony W Tolcher, Renae E Chavira, Janna L Christy-Bittel, Emma Barrett, Amita Patnaik
BACKGROUND: Binimetinib (MEK162; ARRY-438162) is a potent and selective oral MEK 1/2 inhibitor. This phase 1 study determined the maximum tolerated dose (MTD), safety, pharmacokinetic and pharmacodynamic profiles, and preliminary anti-tumour activity of binimetinib in patients with advanced solid tumours, with expansion cohorts of patients with biliary cancer or KRAS- or BRAF-mutant colorectal cancer. METHODS: Binimetinib was administered twice daily. Expansion cohorts were enroled after MTD determination following a 3+3 dose-escalation design...
February 2, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28150108/cyclooxygenase-in-cancer-prevention-and-treatments-for-actinic-keratosis
#12
REVIEW
Gareth J Thomas, Colin A Morton
Non-steroidal anti-inflammatory drugs (NSAIDs) are a chemically diverse class of drugs that target the cyclooxygenase (COX) pathway and have anti-inflammatory, analgesic, and antipyretic properties. Elevated expression of COX-2 has been associated with tumor progression in skin cancer through multiple mechanisms. We present evidence for a chemoprotective effect of NSAIDs and discuss potential mechanisms of action of COX-2 in cancer. We also discuss the challenges associated with the treatment of actinic keratosis and the factors that should be taken into consideration when selecting a treatment regimen...
January 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28145883/therapy-induced-developmental-reprogramming-of-prostate-cancer-cells-and-acquired-therapy-resistance
#13
Mannan Nouri, Josselin Caradec, Amy Anne Lubik, Na Li, Brett G Hollier, Mandeep Takhar, Manuel Altimirano-Dimas, Mengqian Chen, Mani Roshan-Moniri, Miriam Butler, Melanie Lehman, Jennifer Bishop, Sarah Truong, Shih-Chieh Huang, Dawn Cochrane, Michael Cox, Colin Collins, Martin Gleave, Nicholas Erho, Mohamed Alshalafa, Elai Davicioni, Colleen Nelson, Sheryl Gregory-Evans, R Jeffrey Karnes, Robert B Jenkins, Eric A Klein, Ralph Buttyan
Treatment-induced neuroendocrine transdifferentiation (NEtD) complicates therapies for metastatic prostate cancer (PCa). Based on evidence that PCa cells can transdifferentiate to other neuroectodermally-derived cell lineages in vitro, we proposed that NEtD requires first an intermediary reprogramming to metastable cancer stem-like cells (CSCs) of a neural class and we demonstrate that several different AR+/PSA+ PCa cell lines were efficiently reprogrammed to, maintained and propagated as CSCs by growth in androgen-free neural/neural crest (N/NC) stem medium...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28125707/digital-pcr-improves-mutation-analysis-in-pancreas-fine-needle-aspiration-biopsy-specimens
#14
Shonan Sho, Colin M Court, Stephen Kim, David R Braxton, Shuang Hou, V Raman Muthusamy, Rabindra R Watson, Alireza Sedarat, Hsian-Rong Tseng, James S Tomlinson
Applications of precision oncology strategies rely on accurate tumor genotyping from clinically available specimens. Fine needle aspirations (FNA) are frequently obtained in cancer management and often represent the only source of tumor tissues for patients with metastatic or locally advanced diseases. However, FNAs obtained from pancreas ductal adenocarcinoma (PDAC) are often limited in cellularity and/or tumor cell purity, precluding accurate tumor genotyping in many cases. Digital PCR (dPCR) is a technology with exceptional sensitivity and low DNA template requirement, characteristics that are necessary for analyzing PDAC FNA samples...
2017: PloS One
https://www.readbyqxmd.com/read/28119061/nfib-mediates-brn2-driven-melanoma-cell-migration-and-invasion-through-regulation-of-ezh2-and-mitf
#15
Mitchell E Fane, Yash Chhabra, David E J Hollingsworth, Jacinta L Simmons, Loredana Spoerri, Tae Gyu Oh, Jagat Chauhan, Toby Chin, Lachlan Harris, Tracey J Harvey, George E O Muscat, Colin R Goding, Richard A Sturm, Nikolas K Haass, Glen M Boyle, Michael Piper, Aaron G Smith
While invasion and metastasis of tumour cells are the principle factor responsible for cancer related deaths, the mechanisms governing the process remain poorly defined. Moreover, phenotypic divergence of sub-populations of tumour cells is known to underpin alternative behaviors linked to tumour progression such as proliferation, survival and invasion. In the context of melanoma, heterogeneity between two transcription factors, BRN2 and MITF, has been associated with phenotypic switching between predominantly invasive and proliferative behaviors respectively...
January 16, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28112740/a-somatic-mutational-process-recurrently-duplicates-germline-susceptibility-loci-and-tissue-specific-super-enhancers-in-breast-cancers
#16
Dominik Glodzik, Sandro Morganella, Helen Davies, Peter T Simpson, Yilong Li, Xueqing Zou, Javier Diez-Perez, Johan Staaf, Ludmil B Alexandrov, Marcel Smid, Arie B Brinkman, Inga Hansine Rye, Hege Russnes, Keiran Raine, Colin A Purdie, Sunil R Lakhani, Alastair M Thompson, Ewan Birney, Hendrik G Stunnenberg, Marc J van de Vijver, John W M Martens, Anne-Lise Børresen-Dale, Andrea L Richardson, Gu Kong, Alain Viari, Douglas Easton, Gerard Evan, Peter J Campbell, Michael R Stratton, Serena Nik-Zainal
Somatic rearrangements contribute to the mutagenized landscape of cancer genomes. Here, we systematically interrogated rearrangements in 560 breast cancers by using a piecewise constant fitting approach. We identified 33 hotspots of large (>100 kb) tandem duplications, a mutational signature associated with homologous-recombination-repair deficiency. Notably, these tandem-duplication hotspots were enriched in breast cancer germline susceptibility loci (odds ratio (OR) = 4.28) and breast-specific 'super-enhancer' regulatory elements (OR = 3...
March 2017: Nature Genetics
https://www.readbyqxmd.com/read/28106883/pten-deficiency-permits-the-formation-of-pancreatic-cancer-in-the-absence-of-autophagy
#17
Mathias T Rosenfeldt, Jim O'Prey, Lucia Flossbach, Colin Nixon, Jennifer P Morton, Owen J Sansom, Kevin M Ryan
No abstract text is available yet for this article.
January 20, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28104720/when-dizziness-becomes-sinister-oropharyngeal-carcinoma-presenting-as-a-paraneoplastic-neurological-disorder
#18
Li Yong, Panagiotis Asimakopoulos, Colin Mumford, Ioanna Fragkandrea Nixon
Paraneoplastic neurological disorders are uncommon presentations of head and neck cancers. We present a case of a 68-year-old male patient who presented with dizziness, nausea and memory problems. MRI of his brain showed bilateral cerebellar leptomeningeal enhancing signal abnormality with cervical lymphadenopathy. CT imaging of his neck raised the suspicion of a tonsillar primary, which was later confirmed on biopsy. His poorly differentiated HPV positive squamous cell carcinoma was treated with chemoradiotherapy...
January 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28102366/aurora-kinase-a-is-a-biomarker-for-bladder-cancer-detection-and-contributes-to-its-aggressive-behavior
#19
Aaron Mobley, Shizhen Zhang, Jolanta Bondaruk, Yan Wang, Tadeusz Majewski, Nancy P Caraway, Li Huang, Einav Shoshan, Guermarie Velazquez-Torres, Giovanni Nitti, Sangkyou Lee, June Goo Lee, Enrique Fuentes-Mattei, Daniel Willis, Li Zhang, Charles C Guo, Hui Yao, Keith Baggerly, Yair Lotan, Seth P Lerner, Colin Dinney, David McConkey, Menashe Bar-Eli, Bogdan Czerniak
The effects of AURKA overexpression associated with poor clinical outcomes have been attributed to increased cell cycle progression and the development of genomic instability with aneuploidy. We used RNA interference to examine the effects of AURKA overexpression in human bladder cancer cells. Knockdown had minimal effects on cell proliferation but blocked tumor cell invasion. Whole genome mRNA expression profiling identified nicotinamide N-methyltransferase (NNMT) as a downstream target that was repressed by AURKA...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098411/an-efficient-basket-trial-design
#20
Kristen M Cunanan, Alexia Iasonos, Ronglai Shen, Colin B Begg, Mithat Gönen
The landscape for early phase cancer clinical trials is changing dramatically because of the advent of targeted therapy. Increasingly, new drugs are designed to work against a target such as the presence of a specific tumor mutation. Because typically only a small proportion of cancer patients will possess the mutational target, but the mutation is present in many different cancers, a new class of basket trials is emerging, whereby the drug is tested simultaneously in different baskets, that is, subgroups of different tumor types...
January 18, 2017: Statistics in Medicine
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