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Screening in prostate cancer

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https://www.readbyqxmd.com/read/29351497/screen-targeting-lung-and-prostate-cancer-oncogene-identifies-novel-inhibitors-of-rgs17-and-problematic-chemical-substructures
#1
Christopher R Bodle, Josephine H Schamp, Joseph B O'Brien, Michael P Hayes, Meng Wu, Jonathan A Doorn, David L Roman
Regulator of G protein signaling (RGS) proteins temporally regulate heterotrimeric G protein signaling cascades elicited by G protein-coupled receptor activation and thus are essential for cell homeostasis. The dysregulation of RGS protein expression has been linked to several pathologies, spurring discovery efforts to identify small-molecule inhibitors of these proteins. Presented here are the results of a high-throughput screening (HTS) campaign targeting RGS17, an RGS protein reported to be inappropriately upregulated in several cancers...
January 1, 2018: SLAS Discovery
https://www.readbyqxmd.com/read/29348298/a-review-of-prostate-cancer-genome-wide-association-studies-gwas
#2
Sarah Benafif, Zsofia Kote-Jarai, Rosalind A Eeles
Prostate cancer (PrCa) is the commonest cancer in men in Europe and the USA. The genetic heritability of PrCa is contributed to by both rarely occurring genetic variants with higher penetrance and moderate to commonly occurring variants conferring lower risks. The number of identified variants belonging to the latter category has increased dramatically in the last 10 years with the development of the genome wide association study (GWAS) and the collaboration of international consortia that have led to the sharing of large-scale genotyping data...
January 18, 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29344289/limb-bud-and-heart-overexpression-inhibits-the-proliferation-and-migration-of-pc3m-cells
#3
Qicai Liu, Ermao Li, Long Huang, Minsheng Cheng, Li Li
Background: The limb-bud and heart gene (LBH) was discovered in the early 21st century and is specifically expressed in the mouse embryonic limb and heart development. Increasing evidences have indicated that LBH not only plays an important role in embryo development, it is also closely correlated with the occurance and progression of many tumors. However, its function in prostate cancer (PCa) is still not well understood. Here, we explored the effects of LBH on the proliferation and migration of the PCa cell line PC3M...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29344092/engaging-the-primary-care-community-to-encourage-appropriate-prostate-cancer-screening
#4
Malhar P Patel, Ariel Schulman, Kevin P Shah, John B Anderson, Thomas J Polascik
Prostate-specific antigen (PSA) screening for prostate cancer remains a controversial topic, particularly in the primary care community. Our multidisciplinary prostate screening panel at Duke University Health System, USA created a nuanced PSA screening algorithm, implemented it into the Electronic Health Record of Duke Primary Care, and conducted outreach meetings with primary care practices to support its rollout. Through this project, we identified areas of concern among primary care clinicians regarding PSA screening that we structured into two major categories: ideological opposition and logistical opposition...
January 2018: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/29341524/-what-s-new-in-ambulatory-general-internal-medicine%C3%A2
#5
Annick Gerber, Camille Buffle Genecand, Thierry Mach, David Schrumpf, Ana Rita Forte Marques, Jean Dupraz, Thomas Schmid
Many treatments are used every day in general medicine without any evidence of their efficacy. This last year, three randomised studies tried to prove the clinical utility of chondroitin/glucosamine in arthritis, cranberry in urinary infections, and acupuncture in migraine. Screening and management of prostate cancer are still controversial. Two recent studies help us advising our patients on this difficult topic. Muscle side effects from statins are well known and have been widely relayed by the press these last years, although myopathies are rare in clinical trials...
January 17, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29341356/all-over-the-map-an-interobserver-agreement-study-of-tumor-location-based-on-the-pi-radsv2-sector-map
#6
Matthew D Greer, Joanna H Shih, Tristan Barrett, Sandra Bednarova, Ismail Kabakus, Yan Mee Law, Haytham Shebel, Maria J Merino, Bradford J Wood, Peter A Pinto, Peter L Choyke, Baris Turkbey
BACKGROUND: Prostate imaging reporting and data system version 2 (PI-RADSv2) recommends a sector map for reporting findings of prostate cancer mulitparametric MRI (mpMRI). Anecdotally, radiologists may demonstrate inconsistent reproducibility with this map. PURPOSE: To evaluate interobserver agreement in defining prostate tumor location on mpMRI using the PI-RADSv2 sector map. STUDY TYPE: Retrospective. POPULATION: Thirty consecutive patients who underwent mpMRI between October, 2013 and March, 2015 and who subsequently underwent prostatectomy with whole-mount processing...
January 17, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29338956/gender-identity-disparities-in-cancer-screening-behaviors
#7
Ariella R Tabaac, Megan E Sutter, Catherine S J Wall, Kellan E Baker
INTRODUCTION: Transgender (trans) and gender-nonconforming adults have reported reduced access to health care because of discrimination and lack of knowledgeable care. This study aimed to contribute to the nascent cancer prevention literature among trans and gender-nonconforming individuals by ascertaining rates of breast, cervical, prostate, and colorectal cancer screening behaviors by gender identity. METHODS: Publicly available de-identified data from the 2014-2016 Behavioral Risk Factor Surveillance System surveys were utilized to evaluate rates of cancer screenings by gender identity, while controlling for healthcare access, sociodemographics, and survey year...
January 12, 2018: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29336860/coaching-to-support-men-in-making-informed-choices-about-prostate-cancer-screening-a-qualitative-study
#8
Dragan Ilic, Kerry Murphy, Veronica Collins, Carol Holden
OBJECTIVE: The objective of this study was to examine the perceptions of men, practice nurses (PNs) and general practitioners (GPs) on patient decision coaching for prostate cancer screening. METHODS: Seven focus groups were conducted with 47 participants, representing three stakeholder groups - men, GPs and PNs. All focus group discussions were conducted by the same facilitator and guided by a semi-structured interview schedule. Transcriptions were analysed by thematic analysis...
January 5, 2018: Patient Education and Counseling
https://www.readbyqxmd.com/read/29331214/the-stockholm-3-model-for-prostate-cancer-detection-algorithm-update-biomarker-contribution-and-reflex-test-potential
#9
Peter Ström, Tobias Nordström, Henrik Grönberg, Martin Eklund
BACKGROUND: It has been shown that the Stockholm-3 model (S3M) outperforms prostate-specific antigen (PSA) as a screening tool for prostate cancer. OBJECTIVE: To update the S3M, to give a detailed account of the value of each predictor in the S3M, and to evaluate the S3M as a reflex test for men with PSA ≥3ng/ml. DESIGN, SETTING, AND PARTICIPANTS: During 2012-2015, the Stockholm-3 study evaluated the S3M relative to PSA as tests for Gleason score ≥7 prostate cancers among men aged 50-69 yr...
January 10, 2018: European Urology
https://www.readbyqxmd.com/read/29329342/ternary-copper-ii-complex-nci60-screening-toxicity-studies-and-evaluation-of-efficacy-in-xenograft-models-of-nasopharyngeal-carcinoma
#10
Munirah Ahmad, Shazlan-Noor Suhaimi, Tai-Lin Chu, Norazlin Abdul Aziz, Noor-Kaslina Mohd Kornain, D S Samiulla, Kwok-Wai Lo, Chew-Hee Ng, Alan Soo-Beng Khoo
Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4...
2018: PloS One
https://www.readbyqxmd.com/read/29327812/hyper-acetylation-contributes-to-the-sensitivity-of-chemo-resistant-prostate-cancer-cells-to-histone-deacetylase-inhibitor-trichostatin-a
#11
Qingqing Xu, Xiaofei Liu, Shiqin Zhu, Xuelei Hu, Huanmin Niu, Xiulei Zhang, Deyu Zhu, Effat Un Nesa, Keli Tian, Huiqing Yuan
Therapeutic agents are urgently needed for treating metastatic castration-refractory prostate cancer (mCRPC) that is unresponsive to androgen deprivation and chemotherapy. Our screening assays demonstrated that chemotherapy-resistant prostate cancer (PCa) cells are more sensitive to HDAC inhibitors than paired sensitive PCa cells, as demonstrated by cell proliferation and apoptosis in vitro and in vivo. Kinetic study revealed that TSA-induced apoptosis was significantly dependent on enhanced transcription and protein synthesis in an early stage, which subsequently caused ER stress and apoptosis...
January 12, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29327043/association-of-oral-microbiome-with-risk-for-incident-head-and-neck-squamous-cell-cancer
#12
Richard B Hayes, Jiyoung Ahn, Xiaozhou Fan, Brandilyn A Peters, Yingfei Ma, Liying Yang, Ilir Agalliu, Robert D Burk, Ian Ganly, Mark P Purdue, Neal D Freedman, Susan M Gapstur, Zhiheng Pei
Importance: Case-control studies show a possible relationship between oral bacteria and head and neck squamous cell cancer (HNSCC). Prospective studies are needed to examine the temporal relationship between oral microbiome and subsequent risk of HNSCC. Objective: To prospectively examine associations between the oral microbiome and incident HNSCC. Design, Setting, and Participants: This nested case-control study was carried out in 2 prospective cohort studies: the American Cancer Society Cancer Prevention Study II Nutrition Cohort (CPS-II) and the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO)...
January 11, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29326030/patient-reported-outcomes-following-abiraterone-acetate-plus-prednisone-added-to-androgen-deprivation-therapy-in-patients-with-newly-diagnosed-metastatic-castration-naive-prostate-cancer-latitude-an-international-randomised-phase-3-trial
#13
Kim N Chi, Andrew Protheroe, Alfredo Rodríguez-Antolín, Gaetano Facchini, Henrik Suttman, Nobuaki Matsubara, Zhangqun Ye, Bhumsuk Keam, Ronaldo Damião, Tracy Li, Kelly McQuarrie, Bin Jia, Peter De Porre, Jason Martin, Mary B Todd, Karim Fizazi
BACKGROUND: In the LATITUDE trial, addition of abiraterone acetate plus prednisone to androgen deprivation therapy (ADT) improved overall survival compared with placebos plus ADT in patients with newly diagnosed, high-risk, metastatic castration-naive prostate cancer. Understanding the effects of treatments on patient-reported outcomes (PROs) and health-related quality of life (HRQOL) is important for treatment decisions; therefore we aimed to analyse the effects of ADT plus abiraterone acetate and prednisone versus ADT plus placebos on PROs and HRQOL in patients in the LATITUDE study...
January 8, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29323532/identification-of-cdk2-as-a-novel-target-in-treatment-of-prostate-cancer
#14
Xifeng Yin, Jun Yu, Yang Zhou, Chengyue Wang, Zhimin Jiao, Zhounan Qian, Hao Sun, Binghai Chen
AIM: This study aims the potential gene involved in the metastasis of prostate cancer (Pca). METHODS: PubMed GEO datasets (GSE6605 and GSE6606) were downloaded. We used multiple bioinformatics methods to screen differentially expressed genes in Pca. Gene network was built by STRING and visualized by Cytoscape. All of the hub genes were analyzed by cBioPortal. Inhibition of CDK2 including siRNA, inhibitor and cas9-induced CDK2 knockout was followed by an invasion assay...
January 11, 2018: Future Oncology
https://www.readbyqxmd.com/read/29322112/managing-male-mammary-maladies
#15
REVIEW
Ian S Fentiman
This review examines the symptoms, need for referral and management of the benign breast conditions which afflict males, together with the steps that are necessary to exclude or confirm male breast cancer. The most common complaint is gynaecomastia, either true or pseudo, and the majority of these cases need reassurance without over-investigation. Drugs that induce breast enlargement are described in order that, when possible, a medication switch can be made. Men receiving endocrine therapy for prostate cancer may develop painful gynaecomastia and this can be relieved with tamoxifen...
January 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29321576/the-microwell-mesh-a-high-throughput-3d-prostate-cancer-spheroid-and-drug-testing-platform
#16
E O Mosaad, K F Chambers, K Futrega, J A Clements, M R Doran
Treatment following early diagnosis of Prostate cancer (PCa) is increasingly successful, whilst the treatment of advanced and metastatic PCa remains challenging. A major limitation in the development of new therapies is the prediction of drug efficacy using in vitro models. Classic in vitro 2-dimensional (2D) cell monolayer cultures are hypersensitive to anti-cancer drugs. As a result, there has been a surge in the development of platforms that enable three dimensional (3D) cultures thought to better replicate natural physiology and better predict drug efficacy...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321194/polygenic-hazard-score-to-guide-screening-for-aggressive-prostate-cancer-development-and-validation-in-large-scale-cohorts
#17
Tyler M Seibert, Chun Chieh Fan, Yunpeng Wang, Verena Zuber, Roshan Karunamuni, J Kellogg Parsons, Rosalind A Eeles, Douglas F Easton, ZSofia Kote-Jarai, Ali Amin Al Olama, Sara Benlloch Garcia, Kenneth Muir, Henrik Grönberg, Fredrik Wiklund, Markus Aly, Johanna Schleutker, Csilla Sipeky, Teuvo Lj Tammela, Børge G Nordestgaard, Sune F Nielsen, Maren Weischer, Rasmus Bisbjerg, M Andreas Røder, Peter Iversen, Tim J Key, Ruth C Travis, David E Neal, Jenny L Donovan, Freddie C Hamdy, Paul Pharoah, Nora Pashayan, Kay-Tee Khaw, Christiane Maier, Walther Vogel, Manuel Luedeke, Kathleen Herkommer, Adam S Kibel, Cezary Cybulski, Dominika Wokolorczyk, Wojciech Kluzniak, Lisa Cannon-Albright, Hermann Brenner, Katarina Cuk, Kai-Uwe Saum, Jong Y Park, Thomas A Sellers, Chavdar Slavov, Radka Kaneva, Vanio Mitev, Jyotsna Batra, Judith A Clements, Amanda Spurdle, Manuel R Teixeira, Paula Paulo, Sofia Maia, Hardev Pandha, Agnieszka Michael, Andrzej Kierzek, David S Karow, Ian G Mills, Ole A Andreassen, Anders M Dale
OBJECTIVES: To develop and validate a genetic tool to predict age of onset of aggressive prostate cancer (PCa) and to guide decisions of who to screen and at what age. DESIGN: Analysis of genotype, PCa status, and age to select single nucleotide polymorphisms (SNPs) associated with diagnosis. These polymorphisms were incorporated into a survival analysis to estimate their effects on age at diagnosis of aggressive PCa (that is, not eligible for surveillance according to National Comprehensive Cancer Network guidelines; any of Gleason score ≥7, stage T3-T4, PSA (prostate specific antigen) concentration ≥10 ng/L, nodal metastasis, distant metastasis)...
January 10, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29317749/determining-direct-binders-of-the-androgen-receptor-using-a-high-throughput-cellular-thermal-shift-assay
#18
Joseph Shaw, Mathew Leveridge, Charlotta Norling, Jakob Karén, Daniel Martinez Molina, Daniel O'Neill, James E Dowling, Paul Davey, Suzanna Cowan, Michael Dabrowski, Martin Main, Davide Gianni
Androgen Receptor (AR) is a key driver in prostate cancer. Direct targeting of AR has valuable therapeutic potential. However, the lack of disease relevant cellular methodologies capable of discriminating between inhibitors that directly bind AR and those that instead act on AR co-regulators has made identification of novel antagonists challenging. The Cellular Thermal Shift Assay (CETSA) is a technology enabling confirmation of direct target engagement with label-free, endogenous protein in living cells. We report the development of the first high-throughput CETSA assay (CETSA HT) to identify direct AR binders in a prostate cancer cell line endogenously expressing AR...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29315389/cancer-screening-guidelines-and-policy-making-15-years-of-experience-in-cancer-screening-guideline-development-in-japan
#19
Chisato Hamashima
Cancer deaths have remained a heavy burden in Japan, thus cancer screening has been anticipated to be a practical strategy for reducing mortality from cancers. The Basic Plan to Promote Cancer Control Program published in 2006 stated that evidence-based cancer screening is required. At the conception of national cancer screening programs, there were no cancer screening assessments. From 1998 to 2001, Hisamichi formed committees for the assessment of cancer screening and published three reports. These reports were the cornerstone in assessing primary studies of cancer screening in Japan which served as a stimulus for the development of cancer screening guidelines...
January 5, 2018: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29311132/the-epidemiology-of-prostate-cancer
#20
Claire H Pernar, Ericka M Ebot, Kathryn M Wilson, Lorelei A Mucci
Prostate cancer is a major cause of disease and mortality among men, and each year 1.6 million men are diagnosed with and 366,000 men die of prostate cancer. In this review, we discuss the state of evidence for specific genetic, lifestyle, and dietary factors associated with prostate cancer risk. Given the biological heterogeneity of this cancer, we focus on risk factors for advanced or fatal prostate cancer. First, we provide descriptive epidemiology statistics and patterns for prostate cancer incidence and mortality around the world...
January 8, 2018: Cold Spring Harbor Perspectives in Medicine
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