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https://www.readbyqxmd.com/read/28646014/the-impact-of-68-ga-psma-pet-ct-on-management-intent-in-prostate-cancer-results-of-an-australian-prospective-multicenter-study
#1
Paul J Roach, Roslyn Francis, Louise Emmett, Edward Hsiao, Andrew Kneebone, George Hruby, Thomas Eade, Quoc Nguyen, Ben Thompson, Tom Cusick, Michael McCarthy, Colin Tang, Bao Ho, Philip Stricker, Andrew Scott
(68)Ga-PSMA PET/CT scanning has been shown to be more sensitive than conventional imaging techniques in patients with prostate cancer. This prospective Australian multicenter study assessed whether (68)Ga-PSMA PET/CT imaging impacts on management intent in patients with primary or recurrent prostate cancer. Methods: Prior to undertaking (68)Ga-PSMA PET imaging, referring medical specialists completed a questionnaire detailing relevant demographic and clinical data as well as their proposed management plan. A separate follow up questionnaire was completed after the (68)Ga-PSMA PET/CT scan results were available to determine whether their management plan would change...
June 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28642484/mir-100-5p-inhibition-induces-apoptosis-in-dormant-prostate-cancer-cells-and-prevents-the-emergence-of-castration-resistant-prostate-cancer
#2
Noushin Nabavi, Nur Ridzwan Nur Saidy, Erik Venalainen, Anne Haegert, Abhijit Parolia, Hui Xue, Yuwei Wang, Rebecca Wu, Xin Dong, Colin Collins, Francesco Crea, Yuzhuo Wang
Carcinoma of the prostate is the most common cancer in men. Treatment of aggressive prostate cancer involves a regiment of radical prostectomy, radiation therapy, chemotherapy and hormonal therapy. Despite significant improvements in the last decade, the treatment of prostate cancer remains unsatisfactory, because a significant fraction of prostate cancers develop resistance to multiple treatments and become incurable. This prompts an urgent need to investigate the molecular mechanisms underlying the evolution of therapy-induced resistance of prostate cancer either in the form of castration-resistant prostate cancer (CRPC) or transdifferentiated neuroendocrine prostate cancer (NEPC)...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28631728/acg-and-cag-clinical-guideline-management-of-dyspepsia
#3
Paul M Moayyedi, Brian E Lacy, Christopher N Andrews, Robert A Enns, Colin W Howden, Nimish Vakil
We have updated both the American College of Gastroenterology (ACG) and the Canadian Association of Gastroenterology (CAG) guidelines on dyspepsia in a joint ACG/CAG dyspepsia guideline. We suggest that patients ≥60 years of age presenting with dyspepsia are investigated with upper gastrointestinal endoscopy to exclude organic pathology. This is a conditional recommendation and patients at higher risk of malignancy (such as spending their childhood in a high risk gastric cancer country or having a positive family history) could be offered an endoscopy at a younger age...
June 20, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28625005/dose-dense-mvac-prior-to-radical-cystectomy-a-real-world-experience
#4
Homayoun Zargar, Jay B Shah, Elisabeth E Fransen van de Putte, Kylea R Potvin, Kamran Zargar-Shoshtari, Bas W van Rhijn, Siamak Daneshmand, Jeff M Holzbeierlein, Philippe E Spiess, Eric Winquist, Simon Horenblas, Colin Dinney, Peter C Black, Wassim Kassouf
PURPOSE: Our primary endpoint was to assess pathological response rate (pT0N0 and ≤pT1N0) for patients with BCa treated with the accelerated or dose dense MVAC (ddMVAC) chemotherapy followed by radical cystectomy (RC) in this real-word multi-institutional cohort. MATERIALS AND METHODS: We retrospectively reviewed records of patients with urothelial cancer who underwent ddMVAC and RC at seven contributing institutions from 2000 to 2015. Patients with cT2-4a, M0 BCa were included...
June 17, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28622839/water-lavage-as-an-adjunct-to-cytoreductive-surgery-with-hyperthermic-intraperitoneal-chemotherapy-crs-hipec
#5
Emmanuel Gabriel, Smit Singla, Minhyung Kim, Daniel Fisher, Colin Powers, Anthony Visioni, Kristopher Attwood, Joseph Skitzki
BACKGROUND: Water lavage (WL) during gastrointestinal cancer surgery has osmotically mediated lytic effects on tumor cells. We investigated the safety and efficacy of WL with CRS-HIPEC. METHODS: This is a retrospective review, 1/2003-7/2014, of a single institution experience with CRS-HIPEC comparing patients who had WL (WL+) to those who did not (WL-). RESULTS: Of 157 CRS-HIPECs, 16 (10.2%) were WL+. WL+ had more PCI scores >20 compared to WL- (56...
June 6, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28622298/tgf%C3%AE-pathway-limits-dedifferentiation-following-wnt-and-mapk-pathway-activation-to-suppress-intestinal-tumourigenesis
#6
Patrizia Cammareri, David F Vincent, Michael C Hodder, Rachel A Ridgway, Claudio Murgia, Max Nobis, Andrew D Campbell, Julia Varga, David J Huels, Chithra Subramani, Katie L H Prescott, Colin Nixon, Ann Hedley, Simon T Barry, Florian R Greten, Gareth J Inman, Owen J Sansom
Recent studies have suggested increased plasticity of differentiated cells within the intestine to act both as intestinal stem cells (ISCs) and tumour-initiating cells. However, little is known of the processes that regulate this plasticity. Our previous work has shown that activating mutations of Kras or the NF-κB pathway can drive dedifferentiation of intestinal cells lacking Apc. To investigate this process further, we profiled both cells undergoing dedifferentiation in vitro and tumours generated from these cells in vivo by gene expression analysis...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28608476/pro-migratory-and-tgf-%C3%AE-activating-functions-of-%C3%AE-v%C3%AE-6-integrin-in-pancreatic-cancer-are-differentially-regulated-via-an-eps8-dependent-gtpase-switch
#7
Jo Tod, Christopher J Hanley, Mark R Morgan, Marta Rucka, Toby Mellows, Maria-Antoinette Lopez, Philip Kiely, Karwan A Moutasim, Steven J Frampton, Durgagauri Sabnis, David R Fine, Colin Johnson, John F Marshall, Giorgio Scita, Veronika Jenei, Gareth J Thomas
The integrin αvβ6 is upregulated in numerous carcinomas, where expression commonly correlates with poor prognosis. αvβ6 promotes tumour invasion, partly through regulation of proteases and cell migration, and is also the principal mechanism by which epithelial cells activate TGF-β1; this latter function complicates therapeutic targeting of αvβ6, since TGF-β1 has both tumour-promoting and -suppressive effects. It is unclear how these different αvβ6 functions are linked; both require actin cytoskeletal reorganisation, and it is suggested that tractive forces generated during cell migration activate TGF-β1 by exerting mechanical tension on the ECM-bound latent complex...
June 13, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28600946/the-completeness-and-timeliness-of-cancer-registration-and-the-implications-for-measuring-cancer-burden
#8
Conan Donnelly, Victoria Cairnduff, Jingwen Jessica Chen, Therese Kearney, Deirdre Fitzpatrick, Colin Fox, Anna Gavin
BACKGROUND: Population based cancer registration provides a critical role in disease surveillance in terms of incidence, survival, cancer cluster investigations and prevalence trends, and therefore high levels of completeness and timeliness are required. This study estimates completeness and variation between early and late registrations in the N. Ireland Cancer Registry (NICR) and assesses the implications for reporting cancer incidence and for registry-based research. METHODS: Two main approaches assessed completeness...
June 7, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28599664/angiotensin-ii-type-2-receptor-promotes-apoptosis-and-inhibits-angiogenesis-in-bladder-cancer
#9
Nana Pei, Yingying Mao, Pengfei Wan, Xinglu Chen, Andrew Li, Huiying Chen, Jinlong Li, Renqiang Wan, Yanling Zhang, Hongyan Du, Baihong Chen, Guangyu Jiang, Minghan Xia, Colin Sumners, Guixue Hu, Dongsheng Gu, Hongwei Li
BACKGROUND: Bladder cancer (BCa) is the ninth most common form of cancer in the world. There is a continuing need not only for improving the accuracy of diagnostic markers but also for the development of new treatment strategies. Recent studies have shown that the renin-angiotensin system (RAS), which include the angiotensin type 1 (AT1R), type 2(AT2R), and Mas receptors, play an important role in tumorigenesis and may guide us in meeting those needs. RESULTS: In this study, we first observed that AT1R and Mas expression levels were significantly upregulated in BCa specimens while AT2R was significantly downregulated...
June 9, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28597076/juxtapapillary-and-circumpapillary-choroidal-melanoma-globe-sparing-treatment-outcomes-with-iodine-125-notched-plaque-brachytherapy
#10
John V Hegde, Tara A McCannel, Colin A McCannel, James Lamb, Pin-Chieh Wang, Darlene Veruttipong, Robert Almanzor, D Jeffrey Demanes, Mitchell Kamrava
PURPOSE: Managing juxtapapillary and circumpapillary choroidal melanoma with brachytherapy is challenging because of technical complications with accurate plaque placement and high radiation toxicity given tumor proximity to the optic nerve. We evaluated our center's experience using ultrasound-guided, Iodine (I)-125 notched plaque brachytherapy for treating choroidal melanoma contiguous with (juxtapapillary) and at least partially surrounding the optic disc (circumpapillary). METHODS: All cases of choroidal melanoma treated with I-125 notched plaque brachytherapy at our center from September 2003-December 2013 were retrospectively reviewed...
June 9, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28594590/the-past-present-and-future-of-nutrition-and-cancer-part-1-was-a-nutritional-association-acknowledged-a-century-ago
#11
T Colin Campbell
Professional interest in the association of diet and nutrition with cancer first appeared in the early 1800s, if not before. Yet, progress in understanding this association over the past two centuries has been exceedingly slow and confusing. Without addressing this confusion, progress in using diet and nutrition information to prevent and even to treat cancer, will remain uncertain. To better understand this issue, the present paper is the first of two to explore the history of the diet and cancer relationship prior to a 1982 National Academy of Sciences (NAS) report on Diet, Nutrition and Cancer...
June 8, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28579544/could-clinical-photochemical-internalisation-be-optimised-to-avoid-neuronal-toxicity
#12
Caitriona O'Rourke, Colin Hopper, Alexander J MacRobert, James B Phillips, Josephine H Woodhams
Photochemical Internalisation (PCI) is a novel drug delivery technology in which low dose photodynamic therapy (PDT) can selectively rupture endo/lysosomes by light activation of membrane-incorporated photosensitisers, facilitating intracellular drug release in the treatment of cancer. For PCI to be developed further, it is important to understand whether nerve damage is an impending side effect when treating cancers within or adjacent to nervous system tissue. Dorsal root ganglion (DRG) neurons and their associated satellite glia were subjected to PCI treatment in a 3D co-culture system following incubation with photosensitisers: meso-tetraphenylporphine (TPPS2a) or tetraphenylchlorin disulfonate (TPCS2a) and Bleomycin...
June 1, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28561699/personalizing-therapy-for-metastatic-prostate-cancer-the-role-of-solid-and-liquid-tumor-biopsies
#13
Terence W Friedlander, Colin C Pritchard, Himisha Beltran
Although biopsies of metastatic prostate cancer are rarely undertaken in the clinical setting, there is increasing interest in developing personalized approaches to therapy by taking into account the genetic and phenotypic changes in an individual tumor. Indeed, analysis of metastatic prostate tumors can predict sensitivity to agents that inhibit DNA repair and resistance to novel hormonal agents, such as abiraterone and enzalutamide, and identify phenotypic changes, such as neuroendocrine differentiation, that have important clinical implications...
2017: American Society of Clinical Oncology Educational Book
https://www.readbyqxmd.com/read/28555346/endobronchial-metastasis-from-extrapulmonary-neoplasms-analysis-of-clinicopathologic-features-and-cytological-evaluation-by-bronchial-brushing
#14
Kenji Ikemura, Diana Murro Lin, Colin P Martyn, Ji-Weon Park, Christopher W Seder, Paolo Gattuso
PURPOSE: Bronchial brushings (BB) commonly aid in the diagnosis of primary lung cancer. However, the utility of this method in diagnosing endobronchial metastases (EBM) from extrapulmonic malignancies has not been thoroughly evaluated. The purpose of this study is to evaluate the sensitivity of BB in diagnosing EBM. METHODS: An institutional database was queried for all patients with cytologically or histologically confirmed extrapulmonary EBM identified by endobronchial biopsy between 1978 and 2013...
May 29, 2017: Lung
https://www.readbyqxmd.com/read/28555065/a-novel-micro-cold-atmospheric-plasma-device-for-glioblastoma-both-in-vitro-and-in-vivo
#15
Zhitong Chen, Hayk Simonyan, Xiaoqian Cheng, Eda Gjika, Li Lin, Jerome Canady, Jonathan H Sherman, Colin Young, Michael Keidar
Cold atmospheric plasma (CAP) treatment is a rapidly expanding and emerging technology for cancer treatment. Direct CAP jet irradiation is limited to the skin and it can also be invoked as a supplement therapy during surgery as it only causes cell death in the upper three to five cell layers. However, the current cannulas from which the plasma emanates are too large for intracranial applications. To enhance efficiency and expand the applicability of the CAP method for brain tumors and reduce the gas flow rate and size of the plasma jet, a novel micro-sized CAP device (µCAP) was developed and employed to target glioblastoma tumors in the murine brain...
May 30, 2017: Cancers
https://www.readbyqxmd.com/read/28545226/emergence-of-cd26-cancer-stem-cells-with-metastatic-properties-in-colorectal-carcinogenesis
#16
Alvin Ho-Kwan Cheung, Deepak Narayanan Iyer, Colin Siu-Chi Lam, Lui Ng, Sunny K M Wong, Hung-Sing Lee, Timothy Wan, Johnny Man, Ariel K M Chow, Ronnie T Poon, Roberta Pang, Wai-Lun Law
Colorectal cancer results from genetic aberrations which accumulate over a long period of time, with malignant and metastatic properties acquired at a relatively late stage. A subpopulation of CD26+ colorectal cancer stem cells are known to be implicated in metastasis. We quantified CD26+ cancer cells in 11 primary tumor samples by flow cytometry, and showed that tumors having confirmed or suspected metastases harbored a relatively high CD26+ level in these samples. We hypothesized that this subpopulation of cancer stem cells arises in the late stage of carcinogenesis from the bulk of tumor daughter cells which are CD26-...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28544777/the-prognostic-significance-of-circulating-serum-amyloid-a-and-cxc-chemokine-ligand-4-in-osteosarcoma
#17
Ricardo J Flores, Aaron J Kelly, Yiting Li, Xiang Chen, Colin McGee, Mark Krailo, Donald A Barkauskas, John Hicks, Tsz-Kwong Man
BACKGROUND: Osteosarcoma (OS) is the most common pediatric bone cancer.  Despite advances in treatment regimens, the survival rate remains 60-70%.  There is an urgent need to identify prognostic biomarkers, so that targeted therapies can be developed to improve the outcome. PROCEDURE: Our laboratory has previously identified that circulating serum amyloid A (SAA) and CXC chemokine ligand 4 (CXCL4) are upregulated in patients with OS.  In this study, we tested if they could be used as prognostic biomarkers...
May 24, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28542597/mir-193b-downregulated-in-ewing-sarcoma-targets-the-erbb4-oncogene-to-inhibit-anchorage-independent-growth
#18
Colin Moore, Janet K Parrish, Paul Jedlicka
Ewing Sarcoma is an aggressive, oncofusion-driven, malignant neoplasm of bone and soft tissue affecting predominantly children and young adults. Seeking to identify potential novel therapeutic targets/agents for this disease, our previous studies uncovered microRNAs regulated by EWS/Fli1, the most common oncofusion, with growth modulatory properties. In the present study, we sought to identify EWS/Fli1-repressed, growth suppressive, microRNAs potentially amenable to replacement in Ewing Sarcoma cells. Eight microRNAs (143, 153, 184, 193b, 195, 203, 206 and 223) were selected for evaluation as EWS/Fli1-repressed and underexpressed in Ewing Sarcoma cells, and reported to be growth suppressive in other pediatric or/and adult cancers...
2017: PloS One
https://www.readbyqxmd.com/read/28541575/xenobiotic-car-activators-induce-dlk1-dio3-locus-non-coding-rna-expression-in-mouse-liver
#19
Lucie Pouché, Antonio Vitobello, Michael Römer, Milica Glogovac, A Kenneth MacLeod, Heidrun Ellinger-Ziegelbauer, Magdalena Westphal, Valérie Dubost, Daniel Philipp Stiehl, Bérengère Dumotier, Alexander Fekete, Pierre Moulin, Andreas Zell, Michael Schwarz, Rita Moreno, Jeffrey T J Huang, Cliff R Elcombe, Colin J Henderson, C Roland Wolf, Jonathan G Moggs, Rémi Terranova
Derisking xenobiotic-induced non-genotoxic carcinogenesis (NGC) represents a significant challenge during the safety assessment of chemicals and therapeutic drugs. The identification of robust mechanism-based NGC biomarkers has the potential to enhance cancer hazard identification. We previously demonstrated Constitutive Androstane Receptor (CAR) and WNT signaling-dependent up-regulation of the pluripotency associated Dlk1-Dio3 imprinted gene cluster non-coding RNAs (ncRNAs) in the liver of mice treated with tumor-promoting doses of phenobarbital (PB)...
May 25, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28533783/progress-on-azadirachta-indica-based-biopesticides-in-replacing-synthetic-toxic-pesticides
#20
REVIEW
Suman Chaudhary, Rupinder K Kanwar, Alka Sehgal, David M Cahill, Colin J Barrow, Rakesh Sehgal, Jagat R Kanwar
Over the years, extensive use of commercially available synthetic pesticides against phytophagous insects has led to their bioaccumulation in the environment causing increased resistance and reduction in soil biodiversity. Further, 90% of the applied pesticides enter the various environmental resources as a result of run-off, exposing the farmers as well as consumers of the agricultural produce to severe health issues. Therefore, growing attention has been given toward the development of alternate environmentally friendly pesticides/insecticides that would aid an efficient pest management system and also prevent chronic exposures leading to diseases...
2017: Frontiers in Plant Science
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