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https://www.readbyqxmd.com/read/29164416/high-throughput-and-direct-measurement-of-androgen-levels-using-turbulent-flow-chromatography-liquid-chromatography-triple-quadrupole-mass-spectrometry-tfc-lc-tqms-to-discover-chemicals-that-modulate-dihydrotestosterone-production-in-human-prostate-cancer-cells
#1
Kyungsu Kang, Lei Peng, Yu-Jin Jung, Joo Yeon Kim, Eun Ha Lee, Hee Ju Lee, Sang Min Kim, Sang Hyun Sung, Cheol-Ho Pan, Yongsoo Choi
OBJECTIVES: To develop a high-throughput screening system to measure the conversion of testosterone to dihydrotestosterone (DHT) in cultured human prostate cancer cells using turbulent flow chromatography liquid chromatography-triple quadrupole mass spectrometry (TFC-LC-TQMS). RESULTS: After optimizing the cell reaction system, this method demonstrated a screening capability of 103 samples, including 78 single compounds and 25 extracts, in less than 12 h without manual sample preparation...
November 21, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/29164056/prostate-cancer-imaging-and-biomarkers-guiding-safe-selection-of-active-surveillance
#2
REVIEW
Zachary A Glaser, Jennifer B Gordetsky, Kristin K Porter, Sooryanarayana Varambally, Soroush Rais-Bahrami
Background: Active surveillance (AS) is a widely adopted strategy to monitor men with low-risk, localized prostate cancer (PCa). Current AS inclusion criteria may misclassify as many as one in four patients. The advent of multiparametric magnetic resonance imaging (mpMRI) and novel PCa biomarkers may offer improved risk stratification. We performed a review of recently published literature to characterize emerging evidence in support of these novel modalities. Methods: An English literature search was conducted on PubMed for available original investigations on localized PCa, AS, imaging, and biomarkers published within the past 3 years...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29163793/rapid-ultra-low-coverage-copy-number-profiling-of-cell-free-dna-as-a-precision-oncology-screening-strategy
#3
Daniel H Hovelson, Chia-Jen Liu, Yugang Wang, Qing Kang, James Henderson, Amy Gursky, Scott Brockman, Nithya Ramnath, John C Krauss, Moshe Talpaz, Malathi Kandarpa, Rashmi Chugh, Missy Tuck, Kirk Herman, Catherine S Grasso, Michael J Quist, Felix Y Feng, Christine Haakenson, John Langmore, Emmanuel Kamberov, Tim Tesmer, Hatim Husain, Robert J Lonigro, Dan Robinson, David C Smith, Ajjai S Alva, Maha H Hussain, Arul M Chinnaiyan, Muneesh Tewari, Ryan E Mills, Todd M Morgan, Scott A Tomlins
Current cell-free DNA (cfDNA) next generation sequencing (NGS) precision oncology workflows are typically limited to targeted and/or disease-specific applications. In advanced cancer, disease burden and cfDNA tumor content are often elevated, yielding unique precision oncology opportunities. We sought to demonstrate the utility of a pan-cancer, rapid, inexpensive, whole genome NGS of cfDNA approach (PRINCe) as a precision oncology screening strategy via ultra-low coverage (~0.01x) tumor content determination through genome-wide copy number alteration (CNA) profiling...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29162421/past-current-and-future-incidence-rates-and-burden-of-metastatic-prostate-cancer-in-the-united-states
#4
Scott P Kelly, William F Anderson, Philip S Rosenberg, Michael B Cook
BACKGROUND: Metastatic prostate cancer (PCA) remains a highly lethal malignancy in the USA. As prostate-specific antigen testing declines nationally, detailed assessment of current age- and race-specific incidence trends and quantitative forecasts are needed. OBJECTIVE: To evaluate the current trends of metastatic PCA by age and race, and forecast the number of new cases (annual burden) and future trends. DESIGN, SETTING, AND PARTICIPANTS: We derived incidence data for men aged ≥45 yr who were diagnosed with metastatic PCA from the population-based Surveillance, Epidemiology, and End Results registries...
November 18, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29161239/the-impact-of-folate-intake-on-the-risk-of-head-and-neck-cancer-in-the-prostate-lung-colorectal-and-ovarian-cancer-screening-trial-plco-cohort
#5
Daisuke Kawakita, Yuan-Chin Amy Lee, Lisa H Gren, Saundra S Buys, Carlo La Vecchia, Mia Hashibe
BACKGROUND: Although low levels of folate leads to disturbances in DNA replication, DNA methylation and DNA repair, the association between dietary folate intake and head and neck cancer (HNC) risk remains unclear. METHODS: We evaluated the association between folate intake and HNC risk using prospective cohort data from the Prostate, Lung, Colorectal, and Ovarian (PLCO) cancer screening trial. This study included 101 700 participants and 186 cases with confirmed incident HNC...
November 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29158798/improvement-in-prediction-of-prostate-cancer-prognosis-with-somatic-mutational-signatures
#6
Shengping Zhang, Yafei Xu, Xinjie Hui, Fei Yang, Yueming Hu, Jianlin Shao, Hui Liang, Yejun Wang
Prostate cancer is a leading male malignancy worldwide, while the prognosis prediction remains quite inaccurate. The study aimed to observe whether there was an association between the prognosis of prostate cancer and genetic mutation profile, and to build an accurate prognostic predictor based on the genetic signatures. The patients diagnosed of prostate cancer from The Cancer Genomic Atlas were used for prognostic stratification, while the somatic gene mutation profiles were compared between different prognostic groups...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29156299/outcomes-from-ovarian-cancer-screening-in-the-plco-trial-histologic-heterogeneity-impacts-detection-overdiagnosis-and-survival
#7
Sarah M Temkin, Eric A Miller, Goli Samimi, Christine D Berg, Paul Pinsky, Lori Minasian
AIM: A mortality benefit from screening for ovarian cancer has never been demonstrated. The aim of this study was to evaluate the screening outcomes for different histologic subtypes of ovarian cancers. METHODS: Women in the screening arm of the Prostate, Lung, Colorectal and Ovarian Screening Trial underwent CA-125 and transvaginal ultrasound annually for 3-5 years. We compared screening test characteristics (including overdiagnosis) and outcomes by tumour type (type II versus other) and study arm (screening versus usual care)...
November 16, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29156009/discovering-cancer-vulnerabilities-using-high-throughput-micro-rna-screening
#8
Iva Nikolic, Benjamin Elsworth, Eoin Dodson, Sunny Z Wu, Cathryn M Gould, Pieter Mestdagh, Glenn M Marshall, Lisa G Horvath, Kaylene J Simpson, Alexander Swarbrick
Micro-RNAs (miRNAs) are potent regulators of gene expression and cellular phenotype. Each miRNA has the potential to target hundreds of transcripts within the cell thus controlling fundamental cellular processes such as survival and proliferation. Here, we exploit this important feature of miRNA networks to discover vulnerabilities in cancer phenotype, and map miRNA-target relationships across different cancer types. More specifically, we report the results of a functional genomics screen of 1280 miRNA mimics and inhibitors in eight cancer cell lines, and its presentation in a sophisticated interactive data portal...
November 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29153885/are-the-results-of-the-prostate-testing-for-cancer-and-treatment-trial-applicable-to-contemporary-prostate-cancer-patients-treated-with-radical-prostatectomy-results-from-two-high-volume-european-institutions
#9
Giorgio Gandaglia, Derya Tilki, Emanuele Zaffuto, Nicola Fossati, Raisa S Pompe, Paolo Dell'Oglio, Markus Graefen, Francesco Montorsi, Alberto Briganti
The Prostate Testing for Cancer and Treatment (ProtecT) trial reported excellent outcomes for patients with localized prostate cancer (PCa) managed with radical prostatectomy (RP), radiotherapy, or active monitoring. We aimed at assessing the generalizability of the ProtecT trial to contemporary patients undergoing RP at two high-volume institutions. Overall, 29147 PCa patients treated with RP between 1999 and 2016 were included. We evaluated changes in disease characteristics over time. Competing-risk analyses estimated the 10-yr cancer-specific mortality (CSM) and other-cause mortality (OCM) rates...
November 16, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29145505/spontaneous-development-of-epstein-barr-virus-associated-human-lymphomas-in-a-prostate-cancer-xenograft-program
#10
Alberto J Taurozzi, Ramprakash Beekharry, Michelle Wantoch, Marie-Christine Labarthe, Hannah F Walker, Robert I Seed, Matthew Simms, Greta Rodrigues, James Bradford, Geertje van der Horst, Gabri van der Pluijm, Anne T Collins
Prostate cancer research is hampered by the lack of in vivo preclinical models that accurately reflect patient tumour biology and the clinical heterogeneity of human prostate cancer. To overcome these limitations we propagated and characterised a new collection of patient-derived prostate cancer xenografts. Tumour fragments from 147 unsupervised, surgical prostate samples were implanted subcutaneously into immunodeficient Rag2-/-γC-/- mice within 24 hours of surgery. Histologic and molecular characterisation of xenografts was compared with patient characteristics, including androgen-deprivation therapy, and exome sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/29145346/role-of-delayed-time-point-imaging-during-abdominal-and-pelvic-cancer-screening-using-fdg-pet-ct-in-the-general-population
#11
Shotaro Naganawa, Takeharu Yoshikawa, Koichiro Yasaka, Eriko Maeda, Naoto Hayashi, Osamu Abe
Although delayed-time-point imaging is expected to improve the results of [F]-fluorodeoxyglucose (FDG)-positron emission tomography/computed tomography (PET/CT), how examinees will benefit from dual-time-point imaging versus initial-time-point imaging alone, remains unclear. This study investigated the role of delayed-time-point imaging in improving the results of abdominal and pelvic cancer screening using FDG-PET/CT.This retrospective review included 3131 screening results (average subject age: 55.5 years, range: 40-88 years)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142426/in-silico-and-in-vitro-anticancer-activity-of-isolated-novel-marker-compound-from-chemically-modified-bioactive-fraction-from-curcuma-longa-nccl
#12
Arshi Naqvi, Richa Malasoni, Swati Gupta, Akansha Srivastava, Rishi R Pandey, Anil Kumar Dwivedi
Background: Turmeric (Curcuma longa) is reported to possess wide array of biological activities. Herbal Medicament (HM) is a standardized hexane-soluble fraction of C. longa and is well known for its neuroprotective effect. Objective: In this study, we attempted to synthesize a novel chemically modified bioactive fraction from HM (NCCL) along with isolation and characterization of a novel marker compound (I). Materials and Methods: NCCL was prepared from HM...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29139043/early-onset-baldness-and-the-risk-of-aggressive-prostate-cancer-findings-from-a-case-control-study
#13
Nathan P Papa, Robert J MacInnis, Dallas R English, Damien Bolton, Ian D Davis, Nathan Lawrentschuk, Jeremy L Millar, Gianluca Severi, John L Hopper, Graham G Giles
PURPOSE: We aimed to evaluate the associations between androgenetic alopecia at a young age and subsequent development of aggressive prostate cancer (PC). METHODS: Using a case-control design with self-administered questionnaire, we evaluated the association between aggressive PC and very early-onset balding at age 20, and early-onset balding at age 40 years in 1,941 men. Cases were men with high-grade and/or advanced stage cancer and controls were clinic based men who had undergone biopsy and were found to be histologically cancer negative...
November 14, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29137895/a-four-kallikrein-panel-and-%C3%AE-microseminoprotein-in-predicting-high-grade-prostate-cancer-on-biopsy-an-independent-replication-from-the-finnish-section-of-the-european-randomized-study-of-screening-for-prostate-cancer
#14
Melissa Assel, Liisa Sjöblom, Teemu J Murtola, Kirsi Talala, Paula Kujala, Ulf-Håkan Stenman, Kimmo Taari, Anssi Auvinen, Andrew Vickers, Tapio Visakorpi, Teuvo L Tammela, Hans Lilja
BACKGROUND: A panel of four kallikrein markers (total, free, and intact prostate-specific antigen [PSA] and human kallikrein-related peptidase 2 [hK2]) improves predictive accuracy for Gleason score ≥7 (high-grade) prostate cancer among men biopsied for elevated PSA. A four-kallikrein panel model was originally developed and validated by the Dutch center of the European Randomized Study of Screening for Prostate Cancer (ERSPC). The kallikrein panel is now commercially available as 4Kscore™...
November 11, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29132062/risk-of-early-onset-prostate-cancer-associated-with-occupation-in-the-nordic-countries
#15
Kathryn Hughes Barry, Jan Ivar Martinsen, Michael C R Alavanja, Gabriella Andreotti, Aaron Blair, Johnni Hansen, Kristina Kjærheim, Stella Koutros, Elsebeth Lynge, Pär Sparèn, Laufey Tryggvadottir, Elisabete Weiderpass, Sonja I Berndt, Eero Pukkala
BACKGROUND: Early-onset prostate cancer is often more aggressive and may have a different aetiology than later-onset prostate cancer, but has been relatively little studied to date. We evaluated occupation in relation to early- and later-onset prostate cancer in a large pooled study. METHODS: We used occupational information from census data in five Nordic countries from 1960 to 1990. We identified prostate cancer cases diagnosed from 1961 to 2005 by linkage of census information to national cancer registries and calculated standardised incidence ratios (SIRs) separately for men aged 30-49 and those aged 50 or older...
November 10, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29129779/global-regional-and-national-burden-of-prostate-cancer-1990-2015-results-from-the-global-burden-of-disease-study-2015
#16
Farhad Pishgar, Hedyeh Ebrahimi, Sahar Saeedi Moghaddam, Christina Fitzmaurice, Erfan Amini
PURPOSE: Data on incidence, mortality and burden of prostate cancer as well as changing trends are necessary to provide policy-makers with the evidence needed to allocate resources appropriately. This study is aimed to present estimates for prostate cancer incidence, mortality, and burden from 1990 to 2015 by age, country and developmental status, using results of the Global Burden of Disease 2015 study. MATERIALS AND METHODS: Data from vital registration systems and cancer registries was used to generate mortality estimates...
November 9, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29127531/impact-of-a-robotic-surgical-system-on-treatment-choice-for-men-with-clinically-organ-confined-prostate-cancer
#17
Takashi Kobayashi, Kent Kanao, Motoo Araki, Naoki Terada, Yasuyuki Kobayashi, Atsuro Sawada, Takahiro Inoue, Shin Ebara, Toyohiko Watanabe, Tomomi Kamba, Makoto Sumitomo, Yasutomo Nasu, Osamu Ogawa
BACKGROUND: Introducing a new surgical technology may affect behaviors and attitudes of patients and surgeons about clinical practice. Robot-assisted laparoscopic radical prostatectomy (RALP) was approved in 2012 in Japan. We investigated whether the introduction of this system affected the treatment of organ-confined prostate cancer (PCa) and the use of radical prostatectomy (RP). METHODS: We conducted a retrospective multicenter study on 718 patients with clinically determined organ-confined PCa treated at one of three Japanese academic institutions in 2011 (n = 338) or 2013 (n = 380)...
November 11, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29124274/-psycho-oncology-care-in-rural-areas-results-from-a%C3%A2-cross-sectional-survey-on-the-utilisation-of-community-based-psychosocial-support-services
#18
Markus W Haun, Halina Sklenarova, Verena Zimmermann-Schlegel, Wolfgang Herzog, Mechthild Hartmann
BACKGROUND: Clinically relevant distress and unmet psychosocial needs frequently occur in the course of cancer diseases. Particularly for thinly populated rural areas in Germany rates of distressed patients and uptake of community-based psycho-oncology services are unknown. OBJECTIVES: Determination of a) the proportion of cancer patients with psychosocial distress and unmet needs and b) the utilisation of community-based psycho-oncology services in thinly populated rural areas...
November 9, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/29124241/us-preventive-services-task-force-prostate-specific-antigen-screening-guidelines-result-in-higher-gleason-score-diagnoses
#19
Glen Gejerman, Patrick Ciccone, Martin Goldstein, Vincent Lanteri, Burton Schlecker, John Sanzone, Michael Esposito, Sergey Rome, Michael Ciccone, Eric Margolis, Robert Simon, Yijun Guo, Sri-Ram Pentakota, Hossein Sadhegi-Nejad
Purpose: To evaluate the impact that the 2012 US Preventive Services Task Force (USPSTF) prostate-specific antigen (PSA) screening guidelines have had on the diagnosis of prostate cancer, we compared the incidence and distribution of new cases diagnosed in 2011-before the USPSTF PSA screening recommendations versus 2014 at which time the guidelines were widely adopted. Materials and Methods: We identified all prostate biopsies performed by a large urology group practice utilizing a centralized pathology lab...
November 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29124044/index-based-dietary-patterns-and-the-risk-of-prostate-cancer
#20
REVIEW
Ji Hyun Kim, Jeongseon Kim
Prostate cancer is the second leading cause for cancer incidence in male. Although this high incidence is due to prostate specific antigen screening, other risk-factors, such as diet, might also be involved. The results of previous studies on the association between prostate cancer risk and individual dietary components have been conflicting. Thus, evaluation by dietary pattern analysis rather than individual dietary factors is suggested. The purpose of this study was to review the association of prostate cancer with a priori dietary indices, which are less studied and reviewed to date compared to a posteriori indices...
October 2017: Clinical Nutrition Research
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