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Carcinoma of prostate

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https://www.readbyqxmd.com/read/27920687/a-case-of-primary-small-cell-carcinoma-of-the-bladder
#1
Ashita Ono, Yosuke Hirasawa, Mitsumasa Yamashina, Naoto Kaburagi, Takashi Mima, Toru Sugihara, Riu Hamada, Tatsuo Gondo, Makoto Ohori, Toshitaka Nagao, Yoshio Ohno
Primary small-cell carcinoma arising from the bladder (SmCCB) is uncommon. It differs from urothelial carcinoma (UC), the most common type of bladder cancer, with respect to its cell of origin, biology, and prognosis. Biologically, prostatic SmCCB is much more aggressive than UC, and the prognosis for cases with distant metastasis is especially poor. We report here a case of primary SmCCB (cT3bN1M0) treated with radical cystectomy.
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27918312/physician-patient-communication-is-associated-with-hepatocellular-carcinoma-screening-in-chronic-liver-disease-patients
#2
Deborah J Li, Yikyung Park, Neeta Vachharajani, Wint Yan Aung, Jacqueline Garonzik-Wang, William C Chapman
BACKGROUND: Patients with chronic liver disease are at high risk for developing liver cancer. Factors associated with screening awareness and doctor-patient communication regarding liver cancer were examined. STUDY: Four hundred sixty-seven patients with chronic liver disease at a tertiary-care clinic participated in a phone survey regarding awareness of cancer screening, doctor-patient communication, and health behaviors. Medical records were retrospectively reviewed for data on liver disease etiology and dates of liver imaging tests...
December 1, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27913949/epigenetic-cpg-methylation-of-the-promoter-and-reactivation-of-the-expression-of-gstp1-by-astaxanthin-in-human-prostate-lncap-cells
#3
Yuqing Yang, Francisco Fuentes, Limin Shu, Chao Wang, Doug Pung, Wenji Li, Chengyue Zhang, Yue Guo, Ah-Ng Kong
Astaxanthin (AST), a red dietary carotenoid, has synergistic antioxidant effects with polyunsaturated fatty acids at low concentrations via Nuclear factor (erythroid-derived 2)-like 2 (NFE2L2 or Nrf2)/antioxidant response element (ARE) signaling. In addition, chromatin remodeling and DNA methylation-based gene silencing represent a common mechanism in prostate carcinogenesis and tumor progression from normal cells to pre-initiated cells and ultimately to invasive carcinoma. Therefore, the control of epigenetic modification and the transcriptional/translational control of the activation of Nrf2 and Nrf2-target genes, including glutathione S-transferases (GSTs), appear to be an important mechanism that protects cells against injuries from oxidative stress and cancer development...
December 2, 2016: AAPS Journal
https://www.readbyqxmd.com/read/27913052/evaluation-of-erg-and-pten-protein-expression-in-cribriform-architecture-prostate-carcinomas
#4
Michelle R Downes, Swati Satturwar, Dominique Trudel, Theo H van der Kwast
ERG and PTEN have been suggested as potential prognostic markers in prostatic adenocarcinoma. We assessed the relationship between ERG and PTEN protein expression in cribriform architecture prostatic carcinomas and adjacent acinar non-cribriform carcinoma and determined the interobserver variability in assessment of these markers. A contemporary cohort of radical prostatectomy cases (n=246) were reviewed and cribriform architecture carcinomas (intraductal carcinoma and cribriform Gleason 4 carcinomas) were identified and confirmed with triple cocktail immunostaining...
October 26, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27911711/diaphanous-related-formin-1-as-a-target-for-tumor-therapy
#5
REVIEW
Yuan-Na Lin, Sabine Windhorst
Formins nucleate actin and stabilize microtubules (MTs). Expression of the formin Diaphanous homolog 1 (DIAPH1) is increased in malignant colon carcinoma cells, while expression of DIAPH3 is up-regulated in breast and prostate carcinoma cells. Both DIAPH1 isoforms are required to stabilize interphase MTs of cancer cells, and it has been shown that loss of this function decreases the metastatic potential of these cells. Moreover, depletion of DIAPH3 increases the sensitivity of breast and prostate carcinoma cells to taxanes...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27910803/the-prognostic-and-predictive-value-of-tmprss2-erg-gene-fusion-and-erg-protein-expression-in-prostate-cancer-biopsies
#6
Kasper Drimer Berg
BACKGROUND: The clinical course of prostate carcinoma (PCa) is very heterogeneous. Consequently, a personalised approach for risk stratification and treatment planning is important. Recently, it has become evident that PCa, also at the genomic level, is heterogeneous. An early and common alteration is the gene fusion between the transmembrane protease serine 2 (TMPRSS2) gene and the v-ets avian erythroblastosis virus E26 oncogene homolog (ERG) gene resulting in expression of the oncoprotein ERG...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27909899/obesity-and-risk-of-cancer-an-introductory-overview
#7
Tobias Pischon, Katharina Nimptsch
The prevalence of obesity has increased substantially in the past in almost all countries of the world, and a further increase is expected for the future. Besides the well-established effects on type 2 diabetes and cardiovascular disease, there is convincing evidence today that obesity also increases the risk of several types of cancer, including colorectal cancer, postmenopausal breast cancer, endometrial cancer, renal cell carcinoma, esophageal adenocarcinoma, pancreatic cancer, and liver cancer. Obesity probably also increases the risk of ovarian cancer, advanced prostate cancer, gallbladder cancer, and gastric cardia cancer...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27903924/randomized-phase-ii-study-of-cabazitaxel-versus-methotrexate-in-patients-with-recurrent-and-or-metastatic-squamous-cell-carcinoma-of-the-head-and-neck-previously-treated-with-platinum-based-therapy
#8
Jean-Pascal Henry Machiels, Aline Van Maanen, Jean-Marie Vandenbulcke, Bertrand Filleul, Emmanuel Seront, Stéphanie Henry, Lionel D'Hondt, Christophe Lonchay, Stéphane Holbrechts, Petra Boegner, Dany Brohee, Didier Dequanter, Ingrid Louviaux, Brieuc Sautois, Nicolas Whenham, Guy Berchem, Brigitte Vanderschueren, Christel Fontaine, Sandra Schmitz, Aline Gillain, Joelle Schoonjans, Sylvie Rottey
LESSONS LEARNED: Cabazitaxel has activity in squamous cell carcinoma of the head and neck (SCCHN) and taxane-resistant cell lines. For the first time, cabazitaxel was investigated in incurable patients with recurrent SCCHN. Patients were randomly assigned to cabazitaxel every 3 weeks or weekly methotrexate.This phase II study did not meet its primary endpoint.Cabazitaxel has low activity in SCCHN.The toxicity profile in this population also was not favorable owing to the high rate of febrile neutropenia observed (17%)...
November 30, 2016: Oncologist
https://www.readbyqxmd.com/read/27902466/long-non-coding-rna-urothelial-carcinoma-associated-1-uca1-mediates-radiation-response-in-prostate-cancer
#9
Alireza Fotouhi Ghiam, Samira Taeb, Xiaoyong Huang, Vincent Huang, Jessica Ray, Seville Scarcello, Christianne Hoey, Sahar Jahangiri, Emmanouil Fokas, Andrew Loblaw, Robert G Bristow, Danny Vesprini, Paul Boutros, Stanley K Liu
Radioresistance remains a significant obstacle in the treatment of Prostate Cancer (PCa). To simulate the clinical scenario of irradiation resistance (IRR), we created DU145-IRR PCa cell lines by treatment with 2 Gy daily IR for 59 fractions. DU145-IRR cells acquired an aggressive phenotype as evidenced by increased clonogenic survival, tumorigenic potential and invasiveness. We performed transcriptome profiling to discover dysregulated genes in DU145-IRR cells and identified the long non-coding RNA (lncRNA), Urothelial carcinoma-associated 1 (UCA1)...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27895678/prostate-brachytherapy-in-ghana-our-initial-experience
#10
James Edward Mensah, Joel Yarney, Verna Vanderpuye, Evans Akpakli, Samuel Tagoe, Evans Sasu
PURPOSE: This study presents the experience of a brachytherapy team in Ghana with a focus on technology transfer and outcome. The team was initially proctored by experienced physicians from Europe and South Africa. MATERIAL AND METHODS: A total of 90 consecutive patients underwent either brachytherapy alone or brachytherapy in combination with external beam radiotherapy for prostate carcinoma between July 2008 and February 2014 at Korle Bu Teaching Hospital, Accra, Ghana...
October 2016: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/27893426/sublethal-exposure-to-alpha-radiation-223ra-dichloride-enhances-various-carcinomas-sensitivity-to-lysis-by-antigen-specific-cytotoxic-t-lymphocytes-through-calreticulin-mediated-immunogenic-modulation
#11
Anthony S Malamas, Sofia R Gameiro, Karin M Knudson, James W Hodge
Radium-223 dichloride (Xofigo®; 223Ra) is an alpha-emitting radiopharmaceutical FDA-approved for the treatment of bone metastases in patients with advanced castration-resistant prostate cancer. It is also being examined clinically in patients with breast and lung carcinoma and patients with multiple myeloma. As with other forms of radiation, the aim of 223Ra is to reduce tumor burden by directly killing tumor cells. External beam (photon) and proton radiation have been shown to augment tumor sensitivity to antigen-specific CD8+ cytotoxic T lymphocytes (CTLs)...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27891445/breast-cancer-with-synchronous-renal-cell-carcinoma-a-rare-presentation
#12
Ravi Arjunan, Durgesh Kumar, K V Veerendra Kumar, C S Premlatha
Primary cancer arising from multiple organs is a well known fact. Synchronous tumours have been most commonly associated with kidney cancer. Bladder, prostate, colorectal and lung cancer are the most common synchronous primaries with Renal Cell Carcinoma (RCC) identified till date. We found metachronous tumours of breast with RCC in literature search which included both metastatic tumours as well second primaries. Overall, 25 cases of metastatic breast tumours and eight cases of second primary in previously treated RCC have been reported in the literature...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889631/design-synthesis-and-cytotoxicity-studies-of-novel-pyrazolo-1-5-a-pyridine-derivatives
#13
Chitrakar Ravi, Arem Qayum, Darapaneni Chandra Mohan, Shashank K Singh, Subbarayappa Adimurthy
Copper-mediated synthesis of various pyrazolo[1, 5-a]pyridine-3-carboxylates has been described. The biological activities of these molecules have been evaluated against various human cancer cell lines A549 (Lung adenocarcinoma cell line), MCF-7 (Breast carcinoma cell line), HCT-116 (Colon cancer cell line), and PC-3 (Prostate cancer cell line) through SRB assay. Compound 247 led to accumulation MCF-7 cells in G1-phase and revealed its important role in mitotic cell cycle progression.
November 17, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27888782/effect-of-smoking-cessation-in-saliva-compounds-by-ftir-spectroscopy
#14
Laís Morandini Rodrigues, Taciana Deprá Magrini, Celina Faig Lima, Jaqueline Scholz, Herculano da Silva Martinho, Janete Dias Almeida
INTRODUCTION: Smoking is currently considered one of the biggest risk factors for the development of various diseases and early death. Fourier transform infrared (FTIR) spectroscopy is a valuable tool for analysis of biofluids such as saliva and is considered useful for diagnostic purposes. The aim of this study was to evaluate the effect of smoking cessation on saliva composition by FTIR spectroscopy. METHODS: We analyzed the saliva of participants in two groups: a smoker group made up of 10 chronic smokers and a former smoker group made up of 10 individuals who had stopped smoking...
November 23, 2016: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/27885880/decreased-zinc-in-the-development-and-progression-of-malignancy-an-important-common-relationship-and-potential-for-prevention-and-treatment-of-carcinomas
#15
Leslie C Costello, Renty B Franklin
Efficacious chemotherapy does not exist for treatment or prevention of prostate, liver, and pancreatic carcinomas, and some other cancers that exhibit decreased zinc in malignancy. Zinc treatment offers a potential solution; but its support has been deterred by adverse bias. Areas covered: 1. The clinical and experimental evidence for the common ZIP transporter/Zn down regulation in these cancers. 2. The evidence for a zinc approach to prevent and/or treat these carcinomas. 3. The issues that introduce bias against support for the zinc approach...
December 5, 2016: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/27881017/association-between-interleukin-18-variants-and-prostate-cancer-in-slovak-population
#16
J Jurecekova, E Babusikova, M Kmetova Sivonova, H Drobkova, M Petras, J Kliment, E Halasova
Interleukin-18 (IL-18), pro-inflammatory cytokine, plays important role in antitumor immunity. Polymorphisms in the IL-18 gene may lead to its altered production/activity and such modulate susceptibility to prostate cancer. The aim of this study was to evaluate the relationship between the -607 and +105 polymorphisms in the IL-18 gene and the risk of prostate cancer development and progression in Slovak population. The study was performed using 425 patients with prostate cancer, 270 patients with benign prostatic hyperplasia (BHP) and 263 healthy male controls...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27876137/cathepsin-k-the-association-between-cathepsin-k-expression-and-sphenoid-sinus-invasion-of-pituitary-adenomas
#17
Hongyan Liu, Guoqi Wang, Weijun Gu, Yiming Mu
Pituitary adenomas with sphenoid sinus or clivus invasion are not uncommon, but the pathogenesis responsible for this phenomenon remains unclear. Cathepsin K, expressed predominantly in osteoclasts, can degrade type I collagen and plays an essential role in bone resorption. Recent studies reported the expression of Cathepsin K in various malignant tumors, such as bone, breast, lung and prostate cancers, and its expression is further increased in bone metastasis or invasive subpopulations. In addition, cathepsin K inhibitors (CatKi) were demonstrated to effectively prevent or reduce osteolytic lesions in breast cancers with bone metastasis...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27872477/the-role-of-gata2-in-lethal-prostate-cancer-aggressiveness
#18
REVIEW
Veronica Rodriguez-Bravo, Marc Carceles-Cordon, Yujin Hoshida, Carlos Cordon-Cardo, Matthew D Galsky, Josep Domingo-Domenech
Advanced prostate cancer is a classic example of the intractability and consequent lethality that characterizes metastatic carcinomas. Novel treatments have improved the survival of men with prostate cancer; however, advanced prostate cancer invariably becomes resistant to these therapies and ultimately progresses to a lethal metastatic stage. Consequently, detailed knowledge of the molecular mechanisms that control prostate cancer cell survival and progression towards this lethal stage of disease will benefit the development of new therapeutics...
November 22, 2016: Nature Reviews. Urology
https://www.readbyqxmd.com/read/27872140/primary-cilia-are-increased-in-number-and-demonstrate-structural-abnormalities-in-human-cancer
#19
Binnaz Yasar, Kim Linton, Christian Slater, Richard Byers
AIMS: Primary cilia play an important role in the regulation of cell signalling pathways and are thought to have a role in cancer but have seldom been studied in human cancer samples. METHODS: Primary cilia were visualised by dual immunofluorescence for anti-CROCC (ciliary rootlet coiled-coil) and anti-tubulin in a range of human cancers (including carcinomas of stomach, pancreas, prostate, lung and colon, lobular and ductal breast cancers and follicular lymphoma) and in matched normal tissue (stomach, pancreas, lung, large and small intestines, breast and reactive lymph nodes) samples using a tissue microarray; their frequency, association with proliferation, was measured by Ki-67 staining and their structure was analysed...
November 21, 2016: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27869804/systemic-depletion-of-l-cyst-e-ine-with-cyst-e-inase-increases-reactive-oxygen-species-and-suppresses-tumor-growth
#20
Shira L Cramer, Achinto Saha, Jinyun Liu, Surendar Tadi, Stefano Tiziani, Wupeng Yan, Kendra Triplett, Candice Lamb, Susan E Alters, Scott Rowlinson, Yan Jessie Zhang, Michael J Keating, Peng Huang, John DiGiovanni, George Georgiou, Everett Stone
Cancer cells experience higher oxidative stress from reactive oxygen species (ROS) than do non-malignant cells because of genetic alterations and abnormal growth; as a result, maintenance of the antioxidant glutathione (GSH) is essential for their survival and proliferation. Under conditions of elevated ROS, endogenous L-cysteine (L-Cys) production is insufficient for GSH synthesis. This necessitates uptake of L-Cys that is predominantly in its disulfide form, L-cystine (CSSC), via the xCT(-) transporter. We show that administration of an engineered and pharmacologically optimized human cyst(e)inase enzyme mediates sustained depletion of the extracellular L-Cys and CSSC pool in mice and non-human primates...
November 21, 2016: Nature Medicine
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