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https://www.readbyqxmd.com/read/27909339/cancer-cell-motility-lessons-from-migration-in-confined-spaces
#1
Colin D Paul, Panagiotis Mistriotis, Konstantinos Konstantopoulos
Time-lapse, deep-tissue imaging made possible by advances in intravital microscopy has demonstrated the importance of tumour cell migration through confining tracks in vivo. These tracks may either be endogenous features of tissues or be created by tumour or tumour-associated cells. Importantly, migration mechanisms through confining microenvironments are not predicted by 2D migration assays. Engineered in vitro models have been used to delineate the mechanisms of cell motility through confining spaces encountered in vivo...
December 2, 2016: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/27901292/differential-in-radiosensitizing-potency-of-enantiomers-of-the-fatty-acid-synthase-inhibitor-c75
#2
Colin Rae, John W Babich, Robert J Mairs
The elevated activity of fatty acid synthase has been reported in a number of cancer types. Inhibition of this enzyme has been demonstrated to induce cancer cell death and reduce tumor growth. In addition, the fatty acid synthase inhibitor drug C75 has been reported to synergistically enhance the cancer-killing ability of ionizing radiation. However, clinical use of C75 has been limited due to its producing weight loss, believed to be caused by alterations in the activity of carnitine palmitoyltransferase-1...
November 30, 2016: Chirality
https://www.readbyqxmd.com/read/27892936/influence-of-early-life-exposure-host-genetics-and-diet-on-the-mouse-gut-microbiome-and-metabolome
#3
Antoine M Snijders, Sasha A Langley, Young-Mo Kim, Colin J Brislawn, Cecilia Noecker, Erika M Zink, Sarah J Fansler, Cameron P Casey, Darla R Miller, Yurong Huang, Gary H Karpen, Susan E Celniker, James B Brown, Elhanan Borenstein, Janet K Jansson, Thomas O Metz, Jian-Hua Mao
Although the gut microbiome plays important roles in host physiology, health and disease(1), we lack understanding of the complex interplay between host genetics and early life environment on the microbial and metabolic composition of the gut. We used the genetically diverse Collaborative Cross mouse system(2) to discover that early life history impacts the microbiome composition, whereas dietary changes have only a moderate effect. By contrast, the gut metabolome was shaped mostly by diet, with specific non-dietary metabolites explained by microbial metabolism...
November 28, 2016: Nature Microbiology
https://www.readbyqxmd.com/read/27890584/a-sedge-plant-as-the-source-of-kangaroo-island-propolis-rich-in-prenylated-p-coumarate-ester-and-stilbenes
#4
Colin C Duke, Van H Tran, Rujee K Duke, Abdallah Abu-Mellal, George T Plunkett, Douglas I King, Kaiser Hamid, Karen L Wilson, Russell L Barrett, Jeremy J Bruhl
Propolis samples from Kangaroo Island, South Australia, were investigated for chemical constituents using high-field nuclear magnetic resonance spectral profiling. A type of propolis was found containing a high proportion of prenylated hydroxystilbenes. Subsequently, the botanical origin of this type of propolis was identified using a beehive propolis depletion method and analysis of flora. Ligurian honey bees, Apis mellifera ligustica Spinola, were found to produce propolis from resin exuded by the Australian native sedge plant Lepidosperma sp...
November 24, 2016: Phytochemistry
https://www.readbyqxmd.com/read/27882770/focal-therapy-as-primary-treatment-for-localized-prostate-cancer-definition-needs-and-future
#5
Adil Ouzzane, Nacim Betrouni, Massimo Valerio, Ardeshir Rastinehad, Pierre Colin, Guillaume Ploussard
Focal therapy (FT) may offer a promising treatment option in the field of low to intermediate risk localized prostate cancer. The aim of this concept is to combine minimal morbidity with cancer control as well as maintain the possibility of retreatment. Recent advances in MRI and targeted biopsy has improved the diagnostic pathway of prostate cancer and increased the interest in FT. However, before implementation of FT in routine clinical practice, several challenges are still to overcome including patient selection, treatment planning, post-therapy monitoring and definition of oncologic outcome surrogates...
November 24, 2016: Future Oncology
https://www.readbyqxmd.com/read/27869097/the-impact-of-radiation-treatment-time-on-survival-in-patients-with-head-and-neck-cancer
#6
Talha Shaikh, Elizabeth A Handorf, Colin T Murphy, Ranee Mehra, John A Ridge, Thomas J Galloway
PURPOSE: To assess the impact of radiation treatment time (RTT) in head and neck cancers on overall survival (OS) in the era of chemoradiation. METHODS AND MATERIALS: Patients with diagnoses of tongue, hypopharynx, larynx, oropharynx, or tonsil cancer were identified by use of the National Cancer Database. RTT was defined as date of first radiation treatment to date of last radiation treatment. In the definitive setting, prolonged RTT was defined as >56 days, accelerated RTT was defined as <47 days, and standard RTT was defined as 47 to 56 days...
December 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27866412/failing-to-deliver-established-quality-treatment-for-cervical-cancer-what-is-going-on-and-how-can-we-improve-it
#7
Colin Hill, Daniel M Trifiletti, Timothy N Showalter
No abstract text is available yet for this article.
November 21, 2016: Future Oncology
https://www.readbyqxmd.com/read/27861149/aav-mediated-angiotensin-1-7-overexpression-inhibits-tumor-growth-of-lung-cancer-in-vitro-and-in-vivo
#8
Xinglu Chen, Sansan Chen, Nana Pei, Yingying Mao, Shengyao Wang, Renhe Yan, Na Bai, Andrew Li, Yanling Zhang, Hongyan Du, Baihong Chen, Colin Sumners, Jinlong Li, Hongwei Li
Ang-(1-7) inhibits lung cancer cell growth both in vitro and in vivo. However, the molecular mechanism of action is unclear and also the rapid degradation of Ang-(1-7) in vivo limits its clinical application. Here, we have demonstrated that Ang- (1-7) inhibits lung cancer cell growth by interrupting pre-replicative complex assembly and restrains epithelial-mesenchymal transition via Cdc6 inhibition. Furthermore, we constructed a mutant adeno-associated viral vector AAV8 (Y733F) that produced stable and high efficient Ang-(1-7) expression in a xenograft tumor model...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27857118/lineage-specific-roles-of-the-cytoplasmic-polyadenylation-factor-cpeb4-in-the-regulation-of-melanoma-drivers
#9
Eva Pérez-Guijarro, Panagiotis Karras, Metehan Cifdaloz, Raúl Martínez-Herranz, Estela Cañón, Osvaldo Graña, Celia Horcajada-Reales, Direna Alonso-Curbelo, Tonantzin G Calvo, Gonzalo Gómez-López, Nicolas Bellora, Erica Riveiro-Falkenbach, Pablo L Ortiz-Romero, José L Rodríguez-Peralto, Lorena Maestre, Giovanna Roncador, Juan C de Agustín Asensio, Colin R Goding, Eduardo Eyras, Diego Megías, Raúl Méndez, María S Soengas
Nuclear 3'-end-polyadenylation is essential for the transport, stability and translation of virtually all eukaryotic mRNAs. Poly(A) tail extension can also occur in the cytoplasm, but the transcripts involved are incompletely understood, particularly in cancer. Here we identify a lineage-specific requirement of the cytoplasmic polyadenylation binding protein 4 (CPEB4) in malignant melanoma. CPEB4 is upregulated early in melanoma progression, as defined by computational and histological analyses. Melanoma cells are distinct from other tumour cell types in their dependency on CPEB4, not only to prevent mitotic aberrations, but to progress through G1/S cell cycle checkpoints...
November 18, 2016: Nature Communications
https://www.readbyqxmd.com/read/27856273/hypermutation-in-pancreatic-cancer
#10
Jeremy L Humphris, Ann-Marie Patch, Katia Nones, Peter J Bailey, Amber L Johns, Skye McKay, David K Chang, David K Miller, Marina Pajic, Karin S Kassahn, Michael C J Quinn, Timothy J C Bruxner, Angelika N Christ, Ivon Harliwong, Senel Idrisoglu, Suzanne Manning, Craig Nourse, Ehsan Nourbakhsh, Andrew Stone, Peter J Wilson, Matthew Anderson, J Lynn Fink, Oliver Holmes, Stephen Kazakoff, Conrad Leonard, Felicity Newell, Nick Waddell, Scott Wood, Ronald S Mead, Qinying Xu, Jianmin Wu, Mark Pinese, Mark J Cowley, Marc D Jones, Adnan M Nagrial, Venessa T Chin, Lorraine A Chantrill, Amanda Mawson, Angela Chou, Christopher J Scarlett, Andreia V Pinho, Ilse Rooman, Marc Giry-Laterriere, Jaswinder S Samra, James G Kench, Neil D Merrett, Christopher W Toon, Krishna Epari, Nam Q Nguyen, Andrew Barbour, Nikolajs Zeps, Nigel B Jamieson, Colin J McKay, C Ross Carter, Euan J Dickson, Janet S Graham, Fraser Duthie, Karin Oien, Jane Hair, Jennifer P Morton, Owen J Sansom, Robert Grützmann, Ralph H Hruban, Anirban Maitra, Christine A Iacobuzio-Donahue, Richard D Schulick, Christopher L Wolfgang, Richard A Morgan, Rita T Lawlor, Borislav Rusev, Vincenzo Corbo, Roberto Salvia, Ivana Cataldo, Giampaolo Tortora, Margaret A Tempero, Oliver Hofmann, James R Eshleman, Christian Pilarsky, Aldo Scarpa, Elizabeth A Musgrove, Anthony J Gill, John V Pearson, Sean M Grimmond, Nicola Waddell, Andrew V Biankin
Pancreatic cancer is molecularly diverse, with few effective therapies. Increased mutation burden and defective DNA repair are associated with response to immune checkpoint inhibitors in several other cancer types. We interrogated 385 pancreatic cancer genomes to define hypermutation and its causes. Mutational signatures inferring defects in DNA repair were enriched in those with the highest mutation burdens. Mismatch repair deficiency was identified in 1% of tumors harboring different mechanisms of somatic inactivation of MLH1 and MSH2...
November 15, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27846935/-ccafu-french-national-guidelines-2016-2018-on-bladder-cancer
#11
M Rouprêt, Y Neuzillet, A Masson-Lecomte, P Colin, E Compérat, F Dubosq, N Houédé, S Larré, G Pignot, P Puech, M Roumiguié, E Xylinas, A Méjean
OBJECTIVE: The purpose of the guidelines national committee CCAFU on bladder cancer was to propose updated french guidelines for non-muscle invasive (NMIBC) and invasive (MIBC) bladder cancers. METHODS: A Medline search was achieved between 2013 and 2016, as regards diagnosis, options of treatment and follow-up of bladder cancer, to evaluate different references with levels of evidence. RESULTS: Diagnosis of NMIBC (Ta, T1, CIS) is based on a complete deep resection of the tumour...
November 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/27845913/bladder-accumulated-dose-in-image-guided-high-dose-rate-brachytherapy-for-locally-advanced-cervical-cancer-and-its-relation-to-urinary-toxicity
#12
Roja Zakariaee, Ghassan Hamarneh, Colin J Brown, Marc Gaudet, Christina Aquino-Parsons, Ingrid Spadinger
The purpose of this study was to estimate locally accumulated dose to the bladder in multi-fraction high-dose-date (HDR) image-guided intracavitary brachytherapy (IG-ICBT) for cervical cancer, and study the locally-accumulated dose parameters as predictors of late urinary toxicity. A retrospective study of 60 cervical cancer patients who received five HDR IG-ICBT sessions was performed. The bladder outer and inner surfaces were segmented for all sessions and a bladder-wall contour point-set was created in MATLAB...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27845906/specific-micro-rna-expression-patterns-distinguish-the-basal-and-luminal-subtypes-of-muscle-invasive-bladder-cancer
#13
Andrea E Ochoa, Woonyoung Choi, Xiaoping Su, Arlene Siefker-Radtke, Bogdan Czerniak, Colin Dinney, David J McConkey
The roles of non-coding RNAs in controlling clinical and biological heterogeneity in bladder cancer remain unclear. We used TCGA's published dataset (n = 405 tumors) as a discovery cohort and created a new validation cohort to define the miRNA expression patterns in the basal and luminal molecular subtypes of muscle-invasive bladder cancer (MIBC). We identified 63 miRNAs by PAM, which optimally identified basal and luminal tumors. The targets of the top luminal miRNAs were activators of EMT (ZEB1, ZEB2) and basal subtype transcription (IL-6, EGFR, STAT3), whereas the targets of the top basal miRNAs were involved in adipogenesis pathways and luminal breast cancer (ERBB2, ERBB3)...
November 10, 2016: Oncotarget
https://www.readbyqxmd.com/read/27825692/barriers-to-accessing-optimal-esophageal-cancer-care-for-socioeconomically-disadvantaged-patients
#14
Christina M Lineback, Colin M Mervak, Sha'shonda L Revels, Micheal T Kemp, Rishindra M Reddy
BACKGROUND: The 5-year survival of patients with low socioeconomic status (SES) and esophageal cancer is significantly lower than that in patients with high SES. It is poorly understood what causes these worse outcomes. We hypothesized that a qualitative approach could elucidate the underlying causes of these differences. METHODS: Patients with a diagnosis of esophageal cancer were recruited through flyers in regional cancer centers as well as through Facebook advertisements in cancer support groups and newspapers; they participated in a 1-hour semistructured interview or completed an online survey...
November 5, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27824809/aldo-keto-reductases-are-biomarkers-of-nrf2-activity-and-are-co-ordinately-overexpressed-in-non-small-cell-lung-cancer
#15
A Kenneth MacLeod, Lourdes Acosta-Jimenez, Philip J Coates, Michael McMahon, Frank A Carey, Tadashi Honda, Colin J Henderson, C Roland Wolf
BACKGROUND: Although the nuclear factor-erythroid 2-related factor 2 (NRF2) pathway is one of the most frequently dysregulated in cancer, it is not clear whether mutational status is a good predictor of NRF2 activity. Here we utilise four members of the aldo-keto reductase (AKR) superfamily as biomarkers to address this question. METHODS: Twenty-three cell lines of diverse origin and NRF2-pathway mutational status were used to determine the relationship between AKR expression and NRF2 activity...
December 6, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27821815/everolimus-rad001-sensitizes-prostate-cancer-cells-to-docetaxel-by-down-regulation-of-hif-1%C3%AE-and-sphingosine-kinase-1
#16
Heba Alshaker, Qi Wang, Yoshiaki Kawano, Tawfiq Arafat, Torsten Böhler, Mathias Winkler, Colin Cooper, Dmitri Pchejetski
Resistance to docetaxel is a key problem in current prostate cancer management. Sphingosine kinase 1 (SK1) and phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathways have been implicated in prostate cancer chemoresistance. Here we investigated whether their combined targeting may re-sensitize prostate cancer cells to docetaxel.In hormone-insensitive PC-3 and DU145 prostate cancer cells the mTOR inhibitor everolimus (RAD001) alone did not lead to significant cell death, however, it strongly sensitized cells to low levels (5 nM) of docetaxel...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27809301/phospholipase-d1-regulated-autophagy-supplies-free-fatty-acids-to-counter-nutrient-stress-in-cancer-cells
#17
Ming Cai, Jingquan He, Jian Xiong, Li Wei Rachel Tay, Ziqing Wang, Colin Rog, Jingshu Wang, Yizhao Xie, Guobin Wang, Yoshiko Banno, Feng Li, Michael Zhu, Guangwei Du
Cancer cells utilize flexible metabolic programs to maintain viability and proliferation under stress conditions including nutrient deprivation. Here we report that phospholipase D1 (PLD1) participates in the regulation of metabolic plasticity in cancer cells. PLD1 activity is required for cancer cell survival during prolonged glucose deprivation. Blocking PLD1 sensitizes cancer cells to glycolysis inhibition by 2-deoxy-D-glucose (2-DG) and results in decreased autophagic flux, enlarged lysosomes, and increased lysosomal pH...
November 3, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27807699/position-paper-on-screening-for-breast-cancer-by-the-european-society-of-breast-imaging-eusobi-and-30-national-breast-radiology-bodies-from-austria-belgium-bosnia-and-herzegovina-bulgaria-croatia-czech-republic-denmark-estonia-finland-france-germany-greece
#18
Francesco Sardanelli, Hildegunn S Aase, Marina Álvarez, Edward Azavedo, Henk J Baarslag, Corinne Balleyguier, Pascal A Baltzer, Vanesa Beslagic, Ulrich Bick, Dragana Bogdanovic-Stojanovic, Ruta Briediene, Boris Brkljacic, Julia Camps Herrero, Catherine Colin, Eleanor Cornford, Jan Danes, Gérard de Geer, Gul Esen, Andrew Evans, Michael H Fuchsjaeger, Fiona J Gilbert, Oswald Graf, Gormlaith Hargaden, Thomas H Helbich, Sylvia H Heywang-Köbrunner, Valentin Ivanov, Ásbjörn Jónsson, Christiane K Kuhl, Eugenia C Lisencu, Elzbieta Luczynska, Ritse M Mann, Jose C Marques, Laura Martincich, Margarete Mortier, Markus Müller-Schimpfle, Katalin Ormandi, Pietro Panizza, Federica Pediconi, Ruud M Pijnappel, Katja Pinker, Tarja Rissanen, Natalia Rotaru, Gianni Saguatti, Tamar Sella, Jana Slobodníková, Maret Talk, Patrice Taourel, Rubina M Trimboli, Ilse Vejborg, Athina Vourtsis, Gabor Forrai
: EUSOBI and 30 national breast radiology bodies support mammography for population-based screening, demonstrated to reduce breast cancer (BC) mortality and treatment impact. According to the International Agency for Research on Cancer, the reduction in mortality is 40 % for women aged 50-69 years taking up the invitation while the probability of false-positive needle biopsy is <1 % per round and overdiagnosis is only 1-10 % for a 20-year screening. Mortality reduction was also observed for the age groups 40-49 years and 70-74 years, although with "limited evidence"...
November 2, 2016: European Radiology
https://www.readbyqxmd.com/read/27802153/expert-opinions-and-scientific-evidence-for-colonoscopy-key-performance-indicators
#19
REVIEW
Colin J Rees, Roisin Bevan, Katharina Zimmermann-Fraedrich, Matthew D Rutter, Douglas Rex, Evelien Dekker, Thierry Ponchon, Michael Bretthauer, Jaroslaw Regula, Brian Saunders, Cesare Hassan, Michael J Bourke, Thomas Rösch
Colonoscopy is a widely performed procedure with procedural volumes increasing annually throughout the world. Many procedures are now performed as part of colorectal cancer screening programmes. Colonoscopy should be of high quality and measures of this quality should be evidence based. New UK key performance indicators and quality assurance standards have been developed by a working group with consensus agreement on each standard reached. This paper reviews the scientific basis for each of the quality measures published in the UK standards...
October 8, 2016: Gut
https://www.readbyqxmd.com/read/27801762/value-of-pathology-review-in-a-population-based-series-of-ovarian-tumors
#20
Colin J R Stewart, Louise M Stewart, C D'Arcy J Holman, Susan Jordan, James Semmens, Katrina Spilsbury, Timothy Threlfall
Ovarian neoplasia comprises a heterogenous group of tumors with distinct clinicopathologic and molecular features and therefore assessment of potential risk factors should be tumor subtype specific. As part of ongoing epidemiological investigations of ovarian neoplasia in Western Australia, we performed an initial review of original pathology reports followed, in selected cases, by reassessment of histology material to optimize accurate diagnosis. Additional immunohistochemistry, often using antibodies unavailable at the time of initial assessment, was also performed as required...
October 31, 2016: International Journal of Gynecological Pathology
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