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https://www.readbyqxmd.com/read/29159886/radiomics-in-lung-cancer-its-time-is-here
#1
Mannudeep Kalra, Ge Wang, Colin G Orton
Of the 8.8 million deaths from cancer in 2015, per the World Health Organization, lung cancer was the most common cause of death (1.69 million). With the introduction of low-dose CT for lung cancer screening and emergence of precision medicine for often-fatal lung cancer, there is a need for deep access to critical information, i.e. radiomics, not possible with conventional subjective interpretation of CT images. Quantitative image analyses for radiomics have been applied in lung cancers to determine their spatial complexity, genomic composition, viability or aggressiveness, and responses to targeted therapies...
November 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/29155922/population-level-effects-of-a-mass-media-alcohol-and-breast-cancer-campaign-a-cross-sectional-pre-intervention-and-post-intervention-evaluation
#2
Neil Martin, Penny Buykx, Colin Shevills, Claire Sullivan, Lynsey Clark, Dorothy Newbury-Birch
Aims: To examine the relationship between a TV-led breast cancer mass-media campaign in the North East of England (conducted in two waves: Jul/2015 and Nov/2015), awareness of the link between alcohol and cancer, intention to reduce alcohol consumption and support for alcohol related policies. Methods: Three cross-sectional surveys were conducted; one over the 2 weeks pre-campaign (n = 572); one immediately following campaign wave 1 (n = 576); and another immediately following campaign wave 2 (n = 552)...
November 16, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29146185/biomarker-identification-for-statin-sensitivity-of-cancer-cell-lines
#3
Vineet K Raghu, Colin H Beckwitt, Katsuhiko Warita, Alan Wells, Panayiotis V Benos, Zoltán N Oltvai
Statins are potent cholesterol reducing drugs that have been shown to reduce tumor cell proliferation in vitro and tumor growth in animal models. Moreover, retrospective human cohort studies demonstrated decreased cancer-specific mortality in patients taking statins. We previously implicated membrane E-cadherin expression as both a marker and mechanism for resistance to atorvastatin-mediated growth suppression of cancer cells; however, a transcriptome-profile-based biomarker signature for statin sensitivity has not yet been reported...
November 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29143369/detection-of-adverse-drug-reactions-evaluation-of-an-automatic-data-processing-applied-in-oncology-performed-in-the-french-drg-database
#4
Alexandre Quillet, Olivier Colin, Nicolas Bourgeois, Sylvie Favrelière, Aurélie Ferru, Laurence Boinot, Claire Lafay-Chebassier, Marie-Christine Perault-Pochat
The aim of this study was to assess an automated detection method of serious adverse reactions induced by oral targeted therapy (OTT) in patients with cancer, performed in the French Diagnosis Related Groups (DRG) database. Cancer patients of the Poitiers hospital who started an OTT between 2014 and 2015 were included. This study focused on adverse drug reaction which required inpatient hospitalization (ADRh ). All diagnoses coded in the DRG database for hospital stays that occurred within three months after OTT initiation were collected (potential ADRh )...
November 15, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29137633/bi-directional-exosome-driven-intercommunication-between-the-hepatic-niche-and-cancer-cells
#5
Nikolina Dioufa, Amanda M Clark, Bo Ma, Colin H Beckwitt, Alan Wells
BACKGROUND: Our understanding of the multiple roles exosomes play during tumor progression is still very poor and the contribution of the normal tissue derived exosomes in distant seeding and tumor outgrowth has also not been widely appreciated. METHODS: Using our all-human liver microphysiological system (MPS) platform as a model to closely recapitulate the early metastatic events, we isolated exosomes from both tumor cells and liver microenvironment. RESULTS: We observed that while priming of the hepatic niche (HepN) with MDA-231 breast cancer derived exosomes facilitated seeding of the cancer cells in the liver, subsequent tumor outgrowth was diminished; this was consistent with increased entry into dormancy...
November 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29137369/lrh-1-expression-patterns-in-breast-cancer-tissues-are-associated-with-tumour-aggressiveness
#6
Jia-Min B Pang, Ramyar Molania, Ashwini Chand, Kevin Knower, Elena A Takano, David J Byrne, Thomas Mikeska, Ewan K A Millar, Cheok Soon Lee, Sandra A O'Toole, Colin Clyne, Kylie L Gorringe, Alexander Dobrovic, Stephen B Fox
The significance and regulation of liver receptor homologue 1 (LRH-1, NR5A2), a tumour-promoting transcription factor in breast cancer cell lines, is unknown in clinical breast cancers. This study aims to determine LRH-1/NR5A2 expression in breast cancers and relationship with DNA methylation and tumour characteristics. In The Cancer Genome Atlas breast cancer cohort NR5A2 expression was positively associated with intragenic CpG island methylation (1.4-fold expression for fully methylated versus not fully methylated, p=0...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29130312/protein-s-nitrosylation-determinants-of-specificity-and-enzymatic-regulation-of-s-nitrosothiol-based-signaling
#7
Colin T Stomberski, Douglas T Hess, Jonathan Stamler
SIGNIFICANCE: Protein S-nitrosylation, the oxidative modification of cysteine by nitric oxide (NO) to form protein S-nitrosothiols (SNOs), mediates redox-based signaling that largely conveys the ubiquitous influence of NO on cellular function. S-nitrosylation regulates protein activity, stability, localization and protein-protein interactions across myriad physiological processes, and aberrant S-nitrosylation is associated with diverse pathophysiologies. Recent Advances: It is recently recognized that S-nitrosylation endows SNO-proteins with trans-S-nitrosylase activity, i...
November 12, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29127277/dual-protein-kinase-and-nucleoside-kinase-modulators-for-rationally-designed-polypharmacology
#8
Kahina Hammam, Magali Saez-Ayala, Etienne Rebuffet, Laurent Gros, Sophie Lopez, Berengere Hajem, Martine Humbert, Emilie Baudelet, Stephane Audebert, Stephane Betzi, Adrien Lugari, Sebastien Combes, Sebastien Letard, Nathalie Casteran, Colin Mansfield, Alain Moussy, Paulo De Sepulveda, Xavier Morelli, Patrice Dubreuil
Masitinib, a highly selective protein kinase inhibitor, can sensitise gemcitabine-refractory cancer cell lines when used in combination with gemcitabine. Here we report a reverse proteomic approach that identifies the target responsible for this sensitisation: the deoxycytidine kinase (dCK). Masitinib, as well as other protein kinase inhibitors, such as imatinib, interact with dCK and provoke an unforeseen conformational-dependent activation of this nucleoside kinase, modulating phosphorylation of nucleoside analogue drugs...
November 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/29097494/gut-microbiome-influences-efficacy-of-pd-1-based-immunotherapy-against-epithelial-tumors
#9
Bertrand Routy, Emmanuelle Le Chatelier, Lisa Derosa, Connie P M Duong, Maryam Tidjani Alou, Romain Daillère, Aurélie Fluckiger, Meriem Messaoudene, Conrad Rauber, Maria P Roberti, Marine Fidelle, Caroline Flament, Vichnou Poirier-Colame, Paule Opolon, Christophe Klein, Kristina Iribarren, Laura Mondragón, Nicolas Jacquelot, Bo Qu, Gladys Ferrere, Céline Clémenson, Laura Mezquita, Jordi Remon Masip, Charles Naltet, Solenn Brosseau, Coureche Kaderbhai, Corentin Richard, Hira Rizvi, Florence Levenez, Nathalie Galleron, Benoit Quinquis, Nicolas Pons, Bernhard Ryffel, Véronique Minard-Colin, Patrick Gonin, Jean-Charles Soria, Eric Deutsch, Yohann Loriot, François Ghiringhelli, Gérard Zalcman, François Goldwasser, Bernard Escudier, Matthew D Hellmann, Alexander Eggermont, Didier Raoult, Laurence Albiges, Guido Kroemer, Laurence Zitvogel
Immune checkpoint inhibitors (ICI) targeting the PD-1/PD-L1 axis induce sustained clinical responses in a sizeable minority of cancer patients. Here, we show that primary resistance to ICI can be due to abnormal gut microbiome composition. Antibiotics (ATB) inhibited the clinical benefit of ICI in patients with advanced cancer. Fecal microbiota transplantation (FMT) from cancer patients who responded to ICI (but not from non-responding patients) into germ-free or ATB-treated mice ameliorated the antitumor effects of PD-1 blockade...
November 2, 2017: Science
https://www.readbyqxmd.com/read/29094183/a-phase-i-vaccination-study-with-dendritic-cells-loaded-with-ny-eso-1-and-%C3%AE-galactosylceramide-induction-of-polyfunctional-t-cells-in-high-risk-melanoma-patients
#10
Olivier Gasser, Katrina J Sharples, Catherine Barrow, Geoffrey M Williams, Evelyn Bauer, Catherine E Wood, Brigitta Mester, Marina Dzhelali, Graham Caygill, Jeremy Jones, Colin M Hayman, Victoria A Hinder, Jerome Macapagal, Monica McCusker, Robert Weinkove, Gavin F Painter, Margaret A Brimble, Michael P Findlay, P Rod Dunbar, Ian F Hermans
Vaccines that elicit targeted tumor antigen-specific T-cell responses have the potential to be used as adjuvant therapy in patients with high risk of relapse. However, the responses induced by vaccines in cancer patients have generally been disappointing. To improve vaccine function, we investigated the possibility of exploiting the immunostimulatory capacity of type 1 Natural killer T (NKT) cells, a cell type enriched in lymphoid tissues that can trigger improved antigen-presenting function in dendritic cells (DCs)...
November 1, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29089623/enzalutamide-inhibits-testosterone-induced-growth-of-human-prostate-cancer-xenografts-in-zebrafish-and-can-induce-bradycardia
#11
Nicole Melong, Shelby Steele, Morgan MacDonald, Alice Holly, Colin C Collins, Amina Zoubeidi, Jason N Berman, Graham Dellaire
The zebrafish has become a popular human tumour xenograft model, particularly for solid tumours including prostate cancer (PCa). To date PCa xenotransplantation studies in zebrafish have not been performed in the presence of testosterone, even when employing androgen-dependent cell models, such as the LNCaP cell line. Thus, with the goal of more faithfully modelling the hormonal milieu in which PCa develops in humans, we sought to determine the effects of exogenous testosterone on the growth of LNCaP, or androgen-independent C4-2 cells xenografted into zebrafish embryos...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29079120/evaluation-of-delivery-costs-for-external-beam-radiation-therapy-and-brachytherapy-for-locally-advanced-cervical-cancer-using-time-driven-activity-based-costing
#12
Kristine Bauer-Nilsen, Colin Hill, Daniel M Trifiletti, Bruce Libby, Donna H Lash, Melody Lain, Deborah Christodoulou, Constance Hodge, Timothy N Showalter
PURPOSE: To evaluate the delivery costs, using time-driven activity-based costing, and reimbursement for definitive radiation therapy for locally advanced cervical cancer. METHODS AND MATERIALS: Process maps were created to represent each step of the radiation treatment process and included personnel, equipment, and consumable supplies used to deliver care. Personnel were interviewed to estimate time involved to deliver care. Salary data, equipment purchasing information, and facilities costs were also obtained...
September 14, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29075267/pd-1-controls-tonic-signaling-and-lymphopenia-induced-proliferation-of-t-lymphocytes
#13
Kristofor K Ellestad, Jiaxin Lin, Louis Boon, Colin C Anderson
Recovery of the T lymphocyte compartment within a lymphopenic host by lymphopenia-induced proliferation (LIP) is regulated by inter- and intraclonal competition for limited resources, including homeostatic cytokines and peptide:MHC (pMHC) complexes with which the TCR can interact at least weakly to yield a tonic signal. Importantly, the process of LIP can synergize with other factors that promote T cell activation to drive inflammatory disease. While reconstitution of the lymphoid compartment of immune deficient Rag(-/-) mice by transfer of wild-type hematopoietic stem cells (HSC) does not generally result in an overt disease phenotype, transfer of HSC deficient in expression of the co-inhibitory molecule PD-1 results in severe systemic autoimmunity driven by newly generated T cells that emerge from the thymus into the periphery and undergo LIP...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29074948/corrigendum-a-somatic-mutational-process-recurrently-duplicates-germline-susceptibility-loci-and-tissue-specific-super-enhancers-in-breast-cancers
#14
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
This corrects the article DOI: 10.1038/ng.3771.
October 27, 2017: Nature Genetics
https://www.readbyqxmd.com/read/29072317/implanted-fiducial-markers-are-no-longer-needed-for-prostate-cancer-radiotherapy
#15
Christopher F Njeh, Brent C Parker, Colin G Orton
For many decades, it has been common practice to implant fiducial markers within the prostate of patients undergoing radiotherapy in order to enhance the visualization of the target before, during, and after treatment. Some argue that, with the widespread use of cone-beam CT, prostate visualization without the use of fiducial markers is now possible, and such markers are no longer needed. This is the claim debated in this month's Point/Counterpoint. This article is protected by copyright. All rights reserved...
October 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/29061645/homologous-recombination-dna-repair-pathway-disruption-and-retinoblastoma-protein-loss-are-associated-with-exceptional-survival-in-high-grade-serous-ovarian-cancer
#16
Dale W Garsed, Kathryn Alsop, Sian Fereday, Catherine Emmanuel, Catherine Kennedy, Dariush Etemadmoghadam, Bo Gao, Val Gebski, Valérie Garès, Elizabeth L Christie, Maartje Ca Wouters, Katy Milne, Joshy George, Ann-Marie Patch, Jason Li, Gisela Mir Arnau, Timothy Semple, Sreeja R Gadipally, Yoke-Eng Chiew, Joy Hendley, Thomas Mikeska, Giada V Zapparoli, Kaushalya Amarasinghe, Sean Grimmond, John V Pearson, Nicola Waddell, Jillian Hung, Colin J R Stewart, Raghwa Sharma, Prue E Allan, Peter F Rambau, Nadia Traficante, Orla McNally, Linda Mileshkin, Anne L Hamilton, Sumitra Ananda, Marisa Grossi, Paul A Cohen, Yee C Leung, Robert M Rome, Philip J Beale, Penny Blomfield, Michael Friedlander, Alison Brand, Alexander Dobrovic, Martin Köbel, Paul Harnett, Brad H Nelson, David D L Bowtell, Anna DeFazio
PURPOSE: Women with epithelial ovarian cancer generally have a poor prognosis, however a subset of patients has an unexpected dramatic and durable response to treatment. We sought to identify clinical, pathological, and molecular determinants of exceptional survival in women with high-grade serous cancer (HGSC), a disease associated with the majority of ovarian cancer deaths. EXPERIMENTAL DESIGN: We evaluated the histories of 2,283 ovarian cancer patients and, after applying stringent clinical, and pathological selection criteria, identified 96 with HGSC that represented significant outliers in terms of treatment response and overall survival...
October 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29057328/cancer-prevention-and-treatment-by-wholistic-nutrition
#17
T Colin Campbell
Cancer is traditionally considered a genetic disease. It starts with a gene mutation, often caused by environmental carcinogens that are enzymatically activated to metabolites that covalently bind to DNA. If these now-damaged carcinogen-DNA adducts are not repaired before the cell replicates, they result in a mutation, which is inherited by daughter cells and their subsequent progeny. Still more mutations are added that are thought to advance cellular independence, metastasis, and drug resistance, among other characteristics typically observed for advanced cancer...
October 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/29054982/discovery-of-a-highly-selective-nampt-inhibitor-that-demonstrates-robust-efficacy-and-improved-retinal-toxicity-with-nicotinic-acid-co-administration
#18
Genshi Zhao, Colin F Green, Yu-Hua Hui, Lourdes Prieto, Robert Shepard, Sucai Dong, Tao Wang, Bo Tan, Xueqian Gong, Lisa Kays, Robert L Johnson, Wenjuan Wu, Shobha Bhattachar, Miriam Del Prado, James R Gillig, Maria-Carmen Fernandez, Ken D Roth, Sean Buchanan, Ming-Shang Kuo, Sandaruwan Geeganage, Timothy P Burkholder
NAMPT, an enzyme essential for NAD+ biosynthesis, has been extensively studied as an anti-cancer target for developing potential novel therapeutics. Several NAMPT inhibitors have been discovered, some of which have been subjected to clinical investigations. Yet, the on-target hematological and retinal toxicities have hampered their clinical development. In this study, we report the discovery of a unique NAMPT inhibitor, LSN3154567. This molecule is highly selective, and has a potent and broad spectrum of anti-cancer activity...
October 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29052674/egfr-targeting-plga-peg-nanoparticles-as-a-curcumin-delivery-system-for-breast-cancer-therapy
#19
Hua Jin, Jiang Pi, Yue Zhao, Jinhuan Jiang, Ting Li, Xueyi Zeng, Peihui Yang, Colin E Evans, Jiye Cai
Poor bioavailability and non-specificity of chemotherapeutic agents are major challenges in breast cancer treatment. Antibodies and small molecules that block cell signaling pathways have shown promise in the clinic, but their application is also limited by the high costs and treatment dosages required. Novel therapies that aim to rapidly and specifically target malignant cells with long-lasting impact in the tumor microenvironment may ultimately improve clinical outcome in cancer patients. Here, we demonstrate that epidermal growth factor receptor (EGFR)-targeting GE11 peptides conjugated with PEGylated polylactic-co-glycolic acid (PLGA) nanoparticles can be used to effectively deliver an anti-cancer agent, curcumin, into EGFR-expressing MCF-7 cells in vitro and in vivo...
November 2, 2017: Nanoscale
https://www.readbyqxmd.com/read/29039651/intracellular-drug-uptake-a-comparison-of-single-cell-measurements-using-tof-sims-imaging-and-quantification-from-cell-populations-with-lc-ms-ms
#20
Carla F Newman, Rasmus Havelund, Melissa K Passarelli, Peter S Marshall, Ian Francis, Andy West, Morgan R Alexander, Ian S Gilmore, Colin T Dollery
ToF-SIMS is a label-free imaging method that has been shown to enable imaging of amiodarone in single rat macrophage (NR8383) cells. In this study, we show that the method extends to three other cell lines relevant to drug discovery: human embryonic kidney (HEK293), cervical cancer (HeLa), and liver cancer (HepG2). There is significant interest in the variation of drug uptake at the single cell level, and we use ToF-SIMS to show that there is great diversity between individual cells and when comparing each of the cell types...
November 8, 2017: Analytical Chemistry
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