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https://www.readbyqxmd.com/read/27926950/c6-and-c7-substituted-3-4-dihydro-2-1h-quinolinones-as-inhibitors-of-monoamine-oxidase
#1
L Meiring, J Petzer, A Petzer
Purpose Monoamine oxidase (MAO) inhibitors are considered to be useful therapeutic agents and isoform specific inhibitors are employed for the treatment of depression and Parkinson's disease. MAO inhibitors are also under investigation for the treatment of disorders ranging from Alzheimer's disease, prostate cancer and certain cardiomyopathies. While a number of irreversible MAO inhibitors are available in the clinic, reversible inhibitors, particularly of the MAO-B isoform are still being developed. Based on our interest in discovering reversible inhibitors with specificity for MAO-B, we have recently reported that, among a series of 10 3,4-dihydro-2(1H)-quinolinone derivatives, are high potency MAO-B inhibitors, with a number of homologues displaying good selectivities for MAO-B over the MAO-A isoform...
December 7, 2016: Drug Research
https://www.readbyqxmd.com/read/27926866/inflammation-induced-oxidative-stress-mediates-gene-fusion-formation-in-prostate-cancer
#2
Ram S Mani, Mohammad A Amin, Xiangyi Li, Shanker Kalyana-Sundaram, Brendan A Veeneman, Lei Wang, Aparna Ghosh, Adam Aslam, Susmita G Ramanand, Bradley J Rabquer, Wataru Kimura, Maxwell Tran, Xuhong Cao, Sameek Roychowdhury, Saravana M Dhanasekaran, Nallasivam Palanisamy, Hesham A Sadek, Payal Kapur, Alisa E Koch, Arul M Chinnaiyan
Approximately 50% of prostate cancers are associated with gene fusions of the androgen-regulated gene TMPRSS2 to the oncogenic erythroblast transformation-specific (ETS) transcription factor ERG. The three-dimensional proximity of TMPRSS2 and ERG genes, in combination with DNA breaks, facilitates the formation of TMPRSS2-ERG gene fusions. However, the origins of DNA breaks that underlie gene fusion formation in prostate cancers are far from clear. We demonstrate a role for inflammation-induced oxidative stress in the formation of DNA breaks leading to recurrent TMPRSS2-ERG gene fusions...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926864/low-cd38-identifies-progenitor-like-inflammation-associated-luminal-cells-that-can-initiate-human-prostate-cancer-and-predict-poor-outcome
#3
Xian Liu, Tristan R Grogan, Haley Hieronymus, Takao Hashimoto, Jack Mottahedeh, Donghui Cheng, Lijun Zhang, Kevin Huang, Tanya Stoyanova, Jung Wook Park, Ruzanna O Shkhyan, Behdokht Nowroozizadeh, Matthew B Rettig, Charles L Sawyers, David Elashoff, Steve Horvath, Jiaoti Huang, Owen N Witte, Andrew S Goldstein
Inflammation is a risk factor for prostate cancer, but the mechanisms by which inflammation increases that risk are poorly understood. Here, we demonstrate that low expression of CD38 identifies a progenitor-like subset of luminal cells in the human prostate. CD38(lo) luminal cells are enriched in glands adjacent to inflammatory cells and exhibit epithelial nuclear factor κB (NF-κB) signaling. In response to oncogenic transformation, CD38(lo) luminal cells can initiate human prostate cancer in an in vivo tissue-regeneration assay...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926612/inhibitory-effect-of-a-redox-silent-analogue-of-tocotrienol-on-hypoxia-adaptation-in-prostate-cancer-cells
#4
Nobuya Shiozawa, Ryosuke Sugahara, Kozue Namiki, Chiaki Sato, Akira Ando, Ayami Sato, Nantiga Virgona, Tomohiro Yano
Prostate cancer (PCa) is one of the most common cancers in Western countries and acquires a malignant phenotype, androgen-independent growth. PCa under hypoxia often has resistance to chemotherapy and radiotherapy. However, an effective therapy against PCa under hypoxia has not yet been established. In this report, we investigated the inhibitory effect of a redox-silent analogue of tocotrienol on the survival of a human androgen-independent PCa cell line (PC3) under hypoxia. We found that the redox-silent analogue exerted a cytotoxic effect on PC3 cells in a dose-dependent manner irrespective of either hypoxia or normoxia...
December 6, 2016: Anti-cancer Drugs
https://www.readbyqxmd.com/read/27926544/cognitive-impairment-following-hormone-therapy-current-opinion-of-research-in-breast-and-prostate-cancer-patients
#5
Lisa M Wu, Ali Amidi
PURPOSE OF REVIEW: Hormone therapy is a common cancer treatment that may be associated with numerous side and late effects, and in recent years, has been linked to changes in cognition. Here, we present the most important recent findings from empirical studies and reviews that have focused on the effects of hormone therapy on cognitive functioning in breast and prostate cancer populations, underline some general shortcomings, and propose directions for future research. RECENT FINDINGS: Recent research indicates that cognitive impairment may occur in breast and prostate cancer patients following onset of hormone therapy...
December 6, 2016: Current Opinion in Supportive and Palliative Care
https://www.readbyqxmd.com/read/27926521/moderate-hypofractionated-radiotherapy-is-more-effective-and-safe-for-localized-prostate-cancer-patients-a-meta-analysis
#6
Ling Cao, Yong-Jing Yang, Zhi-Wen Li, Hong-Fen Wu, Zhu-Chun Yang, Shi-Xin Liu, Ping Wang
To compare the efficacy and safety of moderate hypofractionated radiotherapy (H-RT) with those of conventional radiotherapy (C-RT) in patients with localized prostate cancer, we conducted extensive literature searches of The Web of Science, Embase, Pubmed and Cochrane Library databases. We identified nine studies with 5969 patients for a meta-analysis. We calculated pooled risk ratios (RRs) and the 95% confidence intervals (CIs) for multiple parameters and performed statistical analysis using RevMan 5.3 software...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27926483/the-metastasis-suppressor-cd82-kai1-inhibits-fibronectin-adhesion-induced-epithelial-to-mesenchymal-transition-in-prostate-cancer-cells-by-repressing-the-associated-integrin-signaling
#7
Jaeseob Lee, Hee-Jung Byun, Moon-Sung Lee, Young-June Jin, Dooil Jeoung, Young-Myeong Kim, Hansoo Lee
The transmembrane protein CD82/KAI1 suppresses the metastatic potential of various cancer cell types. Moreover, decrease or loss of CD82 expression is closely associated with malignancy and poor prognosis in many human cancers including prostate cancer. Despite intense scrutiny, the mechanisms underlying the metastasis-suppressing role of CD82 are still not fully understood. Here, we found that a fibronectin matrix induced mesenchymal phenotypes in human prostate cancer cells with no or low CD82 expression levels...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27925472/image-guided-radiotherapy-for-prostate-cancer-in-the-united-kingdom-a-national-survey
#8
Hemal Ariyaratne, Hayley Chesham, Roberto Alonzi
OBJECTIVES: To survey the technology and practice of image-guided radiotherapy for prostate cancer in the United Kingdom Methods: A pre-tested semi-structured online questionnaire was sent to NHS and private radiotherapy providers in the United Kingdom between March and April 2014. The survey was carried out on the Opinio© online platform. RESULTS: There was a high survey response rate of 83%. There is widespread use of intensity-modulated radiotherapy and advanced verification imaging modalities...
December 7, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27925173/potential-of-long-non-coding-rnas-in-cancer-patients-from-bio-markers-to-therapeutic-targets
#9
REVIEW
Subash Chandra Gupta, Yashoda Nandan Tripathi
Because of high specificity and easy detection in the tissues, serum, plasma, urine and saliva, interest in exploring the potential of long non-coding RNAs (lncRNAs) in cancer patients continues to increase. LncRNAs have shown potential as a bio-marker in the diagnosis and prognosis of bladder cancer, prostate cancer, gastric cancer, pancreatic cancer, breast cancer, and many other cancer types. Some lncRNAs have also been used as adjunct to improve the specificity and sensitivity of existing biomarkers. The molecular tools such as RNA-seq, RNA-FISH, ic-SHAPE and quantitative real-time PCR have been used for examining the lncRNAs' potential...
December 7, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27924788/effect-of-statins-type-on-incident-prostate-cancer-risk-a-meta-analysis-and-systematic-review
#10
Ping Tan, Chen Zhang, Shi-You Wei, Zhuang Tang, Liang Gao, Lu Yang, Qiang Wei
The aim of this study is to investigate the effect of statins type or even when grouping statins by hydrophilic or hydrophobic nature on prostate cancer risk. A literature search was performed without language restrictions using the databases of PubMed (1984.1-2015.3), MEDLINE (1984.1-2015.3), and EMBASE (1990.1-2015.3). Two independent reviewers appraised eligible studies and extracted data. Weighted averages were reported as relative risk (RR) with 95% confidence intervals (CI). Statistic heterogeneity scores were assessed with the standard Cochran's Q-test and I2 statistic...
December 2, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27924710/occupational-risk-factors-for-prostate-cancer-in-an-area-of-former-coal-iron-and-steel-industries-in-germany-part-1-results-from-a-study-performed-in-the-1980s
#11
Silvia Dickhut, Wolfgang Urfer, Susanne Reich, Tiemo Bandel, Karl-Dieter Bremicker, Wolfgang Neugebauer, Jürgen Sökeland, Hermann M Bolt, Klaus Golka
Prostate cancer is the most frequent occurring malignancy in men in many Western countries. Unfortunately, only a few studies on occupational risk factors have been published. Thus, the aim of this study was to investigate possible occupational risk factors in a former center of coal, iron, and steel industries the greater Dortmund area, located in the western part of Germany. In three local departments of urology, a total of 238 prostate cancer cases and 414 patients with benign prostatic hyperplasia as controls were requested to provide information for all jobs ever performed for 6 mo or longer...
2016: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/27924709/occupational-risk-factors-for-prostate-cancer-in-an-area-of-former-coal-iron-and-steel-industries-in-germany-part-2-results-from-a-study-performed-in-the-1990s
#12
Sabina Krech, Silvia Selinski, Hannah Bürger, Jan G Hengstler, Peter Jedrusik, Jasmin Hodzic, H-Jürgen Knopf, Klaus Golka
Currently, there is no established occupational risk factor for prostate cancer. However, in the 1980s, a hospital-based case-control study in the greater Dortmund area showed an elevated risk for hard coal miners and, based on few cases, for painters and varnishers. Therefore, approximately 10 yr later, a similar study regarding prostate cancer was performed in this area. In total, 292 patients with prostate cancer who underwent radical prostatectomy and 313 controls who underwent transurethral resection of a benign prostatic hyperplasia were investigated by questionnaire...
2016: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/27924641/three-minor-valepotriate-isomers-from-valeriana-jatamansi-and-their-cytotoxicity
#13
Sheng Lin, Peng Fu, Tao Chen, Ji Ye, Xian-Wen Yang, Wei-Dong Zhang
Three new minor valepotriate isomers, jatamanvaltrates Z1 (1), Z2 (2), and Z3 (3), have been isolated from the whole plants of Valeriana jatamansi (syn. Valeriana wallichii.). Their structures were elucidated by extensive spectroscopic analysis, especially 2D NMR and ESI-MS/MS(n). All isolated compounds displayed moderate cytotoxicity against the lung adenocarcinoma (A549), metastatic prostate cancer (PC-3 M), colon cancer (HCT-8), and hepatoma (Bel7402) cell lines with IC50 values of 2.8-8.3 μM.
December 7, 2016: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/27924630/gelsolin-like-actin-capping-protein%C3%A2-is-associated-with-patient-prognosis-cellular-apoptosis-and-proliferation-in-prostate-cancer
#14
Tieqiu Li, Xiuqin Hong, Jie Zhao, Yili Teng, Jue Zheng, Hao Chen, Henggui Chen, Huahua Li
AIM: To investigate the role of gelsolin-like actin-capping protein (CapG) in prostate cancer (PCa). MATERIALS & METHODS: CapG expression and its correlation with clinicopathological characters and patient prognosis were analyzed in 76 cases of PCa by immunohistochemistry and qRT-PCR. Then, the influence of CapG downregulation on cell apoptosis and proliferation were assessed. RESULTS: CapG expression in PCa was significantly higher compared with those in matched adjacent noncancerous prostate tissues, and significantly correlated with clinicopathological characters...
December 7, 2016: Biomarkers in Medicine
https://www.readbyqxmd.com/read/27924136/prognostic-value-of-inflammation-in-prostate-cancer-progression-and-response-to-therapeutic-a-critical-review
#15
REVIEW
Alessandro Sciarra, Alessandro Gentilucci, Stefano Salciccia, Federico Pierella, Flavio Del Bianco, Vincenzo Gentile, Ida Silvestri, Susanna Cattarino
Prostate is an immune-competent organ normally populated by inflammatory cells. Prostatic inflammation origin can be multi-factorial and there are some emerging evidences on its possible role as a factor involved in prostate cancer (PC) pathogenesis and progression. This review critically analyzes the role of inflammation as a prognostic factor for progression and aggressiveness of PC. We verified the last 10 years literature data on the association between inflammation and PC aggressiveness, or PC response to therapies...
2016: Journal of Inflammation
https://www.readbyqxmd.com/read/27923966/thinking-style-as-a-predictor-of-men-s-participation-in-cancer-screening
#16
Clare E McGuiness, Deborah Turnbull, Carlene Wilson, Amy Duncan, Ingrid H Flight, Ian Zajac
Men's participation in cancer screening may be influenced by their thinking style. Men's need for cognition (NFC) and faith in intuition were measured to explore whether they varied by demographic variables or predicted screening behavior. Australian males (n = 585, aged 50-74 years) completed surveys about past screening and were subsequently offered mailed fecal occult blood tests (FOBTs). Demographic predictors included age, socioeconomic status, educational attainment, and language spoken at home. The screening behaviors were self-reported prostate cancer screening (prostate-specific antigen testing and digital rectal examinations [DREs]), and colorectal cancer screening (self-reported FOBT participation and recorded uptake of the FOBT offer)...
December 5, 2016: American Journal of Men's Health
https://www.readbyqxmd.com/read/27923965/awareness-of-prostate-cancer-and-screening-modalities-among-long-island-men
#17
James A Leonard, Jenna B Wells, Ethan S Brandler
Despite advances in prostate cancer (PC) treatment and outcomes, it remains one of the most commonly diagnosed cancers and the second leading cause of cancer mortality in men. Furthermore, there exist little data about patient awareness of PC and the frequency of screening. Adult men (470) presenting to the emergency department at a tertiary care center (Stony Brook University) between 2014 and 2015 were surveyed orally for their perceived risk of PC, awareness of PC and screening modalities, and screening history...
December 5, 2016: American Journal of Men's Health
https://www.readbyqxmd.com/read/27923835/rb-loss-promotes-prostate-cancer-metastasis
#18
Chellappagounder Thangavel, Ettickan Boopathi, Yi Liu, Alex Haber, Adam Ertel, Anshul Bhardwaj, Sankar Addya, Noelle Williams, Steve Ciment, Paolo Cotzia, Jeffry L Dean, Adam E Snook, Chris McNair, Matthew A Price, James R Hernandez, Shuang G Zhao, Ruth Birbe, James B McCarthy, Eva A Turely, Kenneth J Pienta, Felix Y Feng, Adam P Dicker, Karen E Knudsen, Robert B Den
RB loss occurs commonly in neoplasia but its contributions to advanced cancer have not been assessed directly. Here we show that RB loss in multiple murine models of cancer produces a pro-metastatic phenotype. Gene expression analyses showed that regulation of the cell motility receptor RHAMM by the RB/E2F pathway was critical for epithelia-mesenchyme translation, motility and invasion by cancer cells. Genetic modulation or pharmacological inhibition of RHAMM activity was sufficient and necessary for metastatic phenotypes induced by RB loss in prostate cancer...
December 6, 2016: Cancer Research
https://www.readbyqxmd.com/read/27923833/an-essential-role-of-maspin-in-embryogenesis-and-tumor-suppression
#19
Sijana H Dzinic, M Margarida Bernardo, Xiaohua Li, Rodrigo Fernandez-Valdivia, Ye-Shih Ho, Qing-Sheng Mi, Sudeshna Bandyopadhyay, Fulvio Lonardo, Semir Vranic, Daniel Oliveira, R Daniel Bonfil, Gregory Dyson, Kang Chen, Almasa Omerovic, Xiujie Sheng, Xiang Han, Dinghong Wu, Xinling Bi, Dzenana Cabaravdic, Una Jakupovic, Marian Wahba, Aaron Pang, Deanna Harajli, Wael Sakr, Shijie Sheng
Maspin (SerpinB5) is an epithelial-specific tumor suppressor gene product that displays context-dependent cellular functions. Maspin-deficient mouse models created to date have not definitively established maspin functions critical for cancer suppression. In this study, we generated a mouse strain in which exon 4 of the Maspin gene was deleted, confirming its essential role in development but also enabling a breeding scheme to bypass embryonic lethality. Phenotypic characterization of this viable strain established that maspin deficiency was associated with a reduction in maximum body weight and a variety of context-dependent epithelial abnormalities...
December 6, 2016: Cancer Research
https://www.readbyqxmd.com/read/27923674/impact-of-a-decision-aid-on-newly-diagnosed-prostate-cancer-patients-understanding-of-the-rationale-for-active-surveillance
#20
Margaret K Formica, Shaun Wason, John D Seigne, Telisa M Stewart
OBJECTIVE: To compare newly diagnosed localized prostate cancer patients who did and did not view a decision aid (DA) on their knowledge of the rationale for active surveillance (AS). METHODS: A cross-sectional study was conducted among 452 newly diagnosed low-risk localized prostate cancer patients. Patients were mailed the video/DVD DA and completed a web-based questionnaire that contained two multiple choice questions assessing knowledge of the rationale for AS...
November 22, 2016: Patient Education and Counseling
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