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https://www.readbyqxmd.com/read/28086825/toxicity-and-quality-of-life-report-of-a-phase-ii-study-of-stereotactic-body-radiotherapy-sbrt-for-low-and-intermediate-risk-prostate-cancer
#1
Matthew J Boyer, Michael A Papagikos, Rex Kiteley, Zeljko Vujaskovic, Jackie Wu, W Robert Lee
BACKGROUND: Clinical data indicates that delivery of larger daily doses of radiation may improve the therapeutic ratio for prostate cancer compared to conventional fractionation. A phase II study of stereotactic body radiotherapy with real-time motion management and daily plan re-optimization for low to intermediate risk prostate cancer was undertaken to evaluate this hypothesis. This report details the toxicity and quality of life following treatment. METHODS: From 2009 to 2013, 60 patients with T1-T2c prostate cancer with a Gleason score of 6 and PSA ≤ 15 or Gleason score of 7 and PSA ≤ 10 were enrolled...
January 13, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28073198/prostatic-calculi-detected-in-peripheral-zone-of-the-gland-during-a-transrectal-ultrasound-biopsy-can-be-significant-predictors-of-prostate-cancer
#2
Lucio Dell'Atti, Andrea B Galosi, Carmelo Ippolito
PURPOSE: Prostatic calculi (PC) are usually associated with benign prostatic hyperplasia or chronic inflammation. However, in several studies prostatic inflammation and calcification have been implicated in the pathogenesis of prostate cancer (CaP). We evaluated the prevalence of PC during transrectal ultrasound (TRUS) and correlate the ultrasonographic patterns with histological findings. METHODS: A prospective study of 664 patients undergoing TRUS and prostate biopsy was planned...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28071673/prognostic-value-of-the-new-grade-groups-in-prostate-cancer-a-multi-institutional-european-validation-study
#3
R Mathieu, M Moschini, B Beyer, K M Gust, T Seisen, A Briganti, P Karakiewicz, C Seitz, L Salomon, A de la Taille, M Rouprêt, M Graefen, S F Shariat
BACKGROUND: We aimed to assess the prognostic relevance of the new Grade Groups in Prostate Cancer (PCa) within a large cohort of European men treated with radical prostatectomy (RP). METHODS: Data from 27 122 patients treated with RP at seven European centers were analyzed. We investigated the prognostic performance of the new Grade Groups (based on Gleason score 3+3, 3+4, 4+3, 8 and 9-10) on biopsy and RP specimen, adjusted for established clinical and pathological characteristics...
January 10, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28062398/perineural-invasion-and-risk-of-lethal-prostate-cancer
#4
Piotr Zareba, Richard Flavin, Masis Isikbay, Jennifer R Rider, Travis A Gerke, Stephen Finn, Andreas Pettersson, Francesca Giunchi, Robert H Unger, Alex M Tinianow, Swen-Olof Andersson, Ove Andrén, Katja Fall, Michelangelo Fiorentino, Lorelei A Mucci
BACKGROUND: Prostate cancer has a propensity to invade and grow along nerves, a phenomenon called perineural invasion (PNI). Recent studies suggest that presence of PNI in prostate cancer has been associated with cancer aggressiveness. METHODS: We investigated the association between PNI and lethal prostate cancer in untreated and treated prostate cancer cohorts: the Swedish Watchful Waiting Cohort of 615 men who underwent watchful waiting, and the U.S. Health Professionals Follow-Up Study of 849 men treated with radical prostatectomy...
January 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28058701/correlation-between-chromosome-9p21-locus-deletion-and-prognosis-in-clinically-localized-prostate-cancer
#5
Érika Aparecida Felix de Barros, José Pontes-Junior, Sabrina Thalita Reis, Amanda Eunice Ramos Lima, Isida C Souza, Jose Lucas Salgueiro, Douglas Fontes, Humberto Dellê, Rafael Ferreira Coelho, Nayara Izabel Viana, Kátia Ramos Moreira Leite, William C Nahas, Miguel Srougi
BACKGROUND: Some studies have reported that deletions at chromosome arm 9p occur frequently and represent a critical step in carcinogenesis of some neoplasms. Our aim was to evaluate the deletion of locus 9p21 and chromosomes 3, 7 and 17 in localized prostate cancer (PC) and correlate these alterations with prognostic factors and biochemical recurrence after surgery. METHODS: We retrospectively evaluated surgical specimens from 111 patients with localized PC who underwent radical prostatectomy...
January 5, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28057717/pathology-driven-comprehensive-proteomic-profiling-of-the-prostate-cancer-tumour-microenvironment
#6
Lisa Staunton, Claire Tonry, Rosina Lis, Virginia Espina, Lance Liotta, Rosanna Inziatari, Michaela Bowden, Aurelie Fabre, John O'Leary, Stephen P Finn, Massimo Loda, Stephen R Pennington
: Prostate cancer (PCa) is the second most common cancer in men worldwide. Gleason grading is an important predictor of PCa outcomes and is influential in determining patient treatment options. Clinical decisions based on a Gleason score of 7 are difficult as the prognosis for individuals diagnosed with Gleason 4+3 cancer is much worse than for those diagnosed with Gleason 3+4 cancer. Laser capture microdissection (LCM) is a highly precise method to isolate specific cell populations or discrete microregions from tissues...
January 5, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28055249/volumetry-of-the-dominant-intraprostatic-tumour-lesion-intersequence-and-interobserver-differences-on-multiparametric-mri
#7
Hugh Harvey, Matthew R Orton, Veronica A Morgan, Chris Parker, David Dearnaley, Cyril Fisher, Nandita M deSouza
OBJECTIVES: To establish interobserver reproducibility of tumour volumetry on individual multiparametric(mp) prostate MRI sequences, validate measurements with histology and determine whether functional to morphological volume ratios reflect Gleason score. METHODS: Forty-one men with prostate cancer treated with prostatectomy (cohort 1) or radical radiotherapy (cohort 2) who had pre-treatment mp (T2-W, DW-, DCE-) MRI were studied retrospectively. Dominant intraprostatic lesions (DIPLs) were manually delineated on each sequence and volumes compared between observers (n=40 analysable) and with radical prostatectomy (n=20)...
January 5, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28046017/development-and-external-validation-of-the-korean-prostate-cancer-risk-calculator-for-high-grade-prostate-cancer-comparison-with-two-western-risk-calculators-in-an-asian-cohort
#8
Jae Young Park, Sungroh Yoon, Man Sik Park, Hoon Choi, Jae Hyun Bae, Du Geon Moon, Sung Kyu Hong, Sang Eun Lee, Chanwang Park, Seok-Soo Byun
PURPOSE: We developed the Korean Prostate Cancer Risk Calculator for High-Grade Prostate Cancer (KPCRC-HG) that predicts the probability of prostate cancer (PC) of Gleason score 7 or higher at the initial prostate biopsy in a Korean cohort (http://acl.snu.ac.kr/PCRC/RISC/). In addition, KPCRC-HG was validated and compared with internet-based Western risk calculators in a validation cohort. MATERIALS AND METHODS: Using a logistic regression model, KPCRC-HG was developed based on the data from 602 previously unscreened Korean men who underwent initial prostate biopsies...
2017: PloS One
https://www.readbyqxmd.com/read/28031426/molecular-profiling-to-determine-clonality-of-serial-magnetic-resonance-imaging-ultrasound-fusion-biopsies-from-men-on-active-surveillance-for-low-risk-prostate-cancer
#9
Ganesh S Palapattu, Simpa S Salami, Andi K Cani, Daniel H Hovelson, Lorena Lazo de la Vega, Kelly R Vandenberg, Jarred V Bratley, Chia-Jen Liu, Lakshmi P Kunju, Jeffery S Montgomery, Todd M Morgan, Shyam Natarajan, Jiaoti Huang, Scott A Tomlins, Leonard S Marks
PURPOSE: To determine whether MRI/ultrasound (MRI/US) fusion biopsy facilitates longitudinal resampling of the same clonal focus of prostate cancer and to determine whether high-grade cancers can evolve from low-grade clones. EXPERIMENTAL DESIGN: All men on active surveillance who underwent tracking MRI/US fusion biopsy of Gleason 6 prostate cancer, on at least two distinct occasions, between 2012 and 2014 were enrolled. MRI/US fusion was used to track and resample specific cancer foci...
October 7, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28024967/extent-of-baseline-prostate-atrophy-is-associated-with-lower-incidence-of-low-and-high-grade-prostate-cancer-on-repeat-biopsy
#10
Dmo Freitas, G L Andriole, R Castro-Santamaria, S J Freedland, D M Moreira
OBJECTIVES: To evaluate whether baseline prostate atrophy (PA) extent is associated with prostate cancer (PCa) incidence at 2-year repeat prostate biopsy in a clinical trial with systematic biopsies. METHODS: We performed a retrospective analysis of 3,165 men 50-75 years-old with prostate-specific antigen (PSA) between 2.5-10ng/mL and a prior negative biopsy in the placebo arm of the Reduction by Dutasteride of PCa Events (REDUCE) trial who underwent a 2-year repeat biopsy...
December 23, 2016: Urology
https://www.readbyqxmd.com/read/28024937/curative-brachytherapy-for-prostate-cancer-in-african-caribbean-patients-a-retrospective-analysis-of-370-consecutive-cases
#11
V Atallah, N Leduc, M Creoff, P Sargos, T Taouil, P Escarmant, V Vinh-Hung
PURPOSE: Prostate cancer is the most frequent malignancy in African-Caribbean men, a population sharing common genetic traits with African-American (AA) but presenting also genomic and epidemiologic specificities. Despite socioeconomic disparities with French mainland, all patients were treated within the French state-financed equal-access health care system. In this study, we report biochemical outcomes of patients treated by brachytherapy in our department from 2005 to 2014 in an African-Caribbean population...
December 23, 2016: Brachytherapy
https://www.readbyqxmd.com/read/28012760/prediction-of-prognosis-for-prostatic-adenocarcinoma-by-combined-histological-grading-and-clinical-staging
#12
Donald F Gleason, George T Mellinger
No abstract text is available yet for this article.
December 21, 2016: Journal of Urology
https://www.readbyqxmd.com/read/28012134/elevated-levels-of-epithelial-cell-transforming-sequence-2-predicts-poor-prognosis-for-prostate-cancer
#13
Zhenghui Guo, Xianju Chen, Tao Du, Dingjun Zhu, Yiming Lai, Wen Dong, Wanhua Wu, Chunhao Lin, Leyuan Liu, Hai Huang
Epithelial cell transforming sequence 2 (Ect2) was originally reported as an oncogene that is involved in several types of human cancers. However, little is known about its expression and function in prostate cancer. Immunohistochemical staining for Ect2 was performed on a human tissue microarray. The staining intensity was analyzed in association with clinical pathological parameters such as Gleason score, pathological grade, clinical stage, tumor invasion, lymph node and distant metastasis. Furthermore, we repeated such analysis and investigated the prognostic value of Ect2 using the TCGA (The Cancer Genome Atlas) Dataset...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/28010973/the-gleason-grading-system-the-approach-that-changed-prostate-cancer-assessment
#14
Donna E Hansel
No abstract text is available yet for this article.
December 20, 2016: Journal of Urology
https://www.readbyqxmd.com/read/28009609/atypical-intraductal-cribriform-proliferations-of-the-prostate-exhibit-similar-molecular-and-clinicopathologic-characteristics-as-intraductal-carcinoma-of-the-prostate
#15
Richard A Hickman, Hui Yu, Jianhong Li, Max Kong, Rajal B Shah, Ming Zhou, Jonathan Melamed, Fang-Ming Deng
Atypical intraductal cribriform proliferations of the prostate (AIP) are loose cribriform proliferations of luminal cells that exhibit greater architectural complexity and/or nuclear atypia than high-grade prostatic intraepithelial neoplasia (HGPIN), but lack the diagnostic criteria for intraductal carcinoma (IDC). The significance of AIP has not been formally established. We compared the clinical, morphologic, and immunohistochemical characteristics of AIP with classic IDC in 310 radical prostatectomy specimens that were received over an 18-month period...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28007457/padeliporfin-vascular-targeted-photodynamic-therapy-versus-active-surveillance-in-men-with-low-risk-prostate-cancer-clin1001-pcm301-an-open-label-phase-3-randomised-controlled-trial
#16
Abdel-Rahmène Azzouzi, Sébastien Vincendeau, Eric Barret, Antony Cicco, François Kleinclauss, Henk G van der Poel, Christian G Stief, Jens Rassweiler, Georg Salomon, Eduardo Solsona, Antonio Alcaraz, Teuvo T Tammela, Derek J Rosario, Francisco Gomez-Veiga, Göran Ahlgren, Fawzi Benzaghou, Bertrand Gaillac, Billy Amzal, Frans M J Debruyne, Gaëlle Fromont, Christian Gratzke, Mark Emberton
BACKGROUND: Vascular-targeted photodynamic therapy, a novel tissue-preserving treatment for low-risk prostate cancer, has shown favourable safety and efficacy results in single-arm phase 1 and 2 studies. We compared this treatment with the standard of care, active surveillance, in men with low-risk prostate cancer in a phase 3 trial. METHODS: This randomised controlled trial was done in 47 European university centres and community hospitals. Men with low-risk, localised prostate cancer (Gleason pattern 3) who had received no previous treatment were randomly assigned (1:1) to vascular-targeted photodynamic therapy (4 mg/kg padeliporfin intravenously over 10 min and optical fibres inserted into the prostate to cover the desired treatment zone and subsequent activation by laser light 753 nm with a fixed power of 150 mW/cm for 22 min 15 s) or active surveillance...
December 19, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/28004432/role-of-coagulation-factors-in-urological-malignancy-a-prospective-controlled-study-on-prostate-renal-and-bladder-cancer
#17
Aristeidis Alevizopoulos, Stavros Tyritzis, Ioannis Leotsakos, Ioanna Anastasopoulou, Christos Pournaras, Paraskevi Kotsis, Olga Katsarou, Christos Alamanis, Konstantinos Stravodimos, Constantinos Constantinides
OBJECTIVES: To study the behavior of specific coagulation factors in different types of non-metastatic urological cancers, and to identify their possible role as diagnostic and prognostic markers. METHODS: This was a prospective controlled study, which included three cancer patient groups and a control group of healthy individuals. The cancer subgroups consisted of renal (n = 44), prostate (n = 56) and bladder cancer (n = 47). We excluded patients receiving anticoagulant therapy, or with significant comorbidity...
December 22, 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/27997745/impact-of-treatment-on-progression-to-castration-resistance-metastases-and-death-in-men-with-localized-high-grade-prostate-cancer
#18
Eric T Miller, Karim Chamie, Lorna Kwan, Michael S Lewis, Beatrice S Knudsen, Isla P Garraway
Men with high-grade prostate cancer (HGPC) are at greatest risk of disease progression. Clinical risk factors associated with castration-resistant prostate cancer (CRPC), metastases, and prostate cancer-specific mortality (PCSM) were identified in a contemporary HGPC cohort. Clinical data was collected from men diagnosed with Gleason sum (GS) ≥8 at the Greater Los Angeles Veterans Affairs (GLA-VA) Healthcare System between 2000 and 2013. Multivariable competing risks regression analyses assessed progression to CRPC, metastases, and PCSM within three treatment strata...
December 20, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27995850/prostate-cancer-polar-localization-on-core-biopsy-predicts-pathologic-stage
#19
Patrick J Hensley, Lisa R Bailey, Matthew S Purdom, Daniel L Davenport, Stephen E Strup
INTRODUCTION: This study investigated the polar sub-localization of prostate cancer on needle core biopsy ('polar' defined as tumor = 1 mm from the tissue polar edge) as a predictor of extraprostatic extension. MATERIALS AND METHODS: Histologic sections from 58 patients who underwent preoperative prostate biopsy and radical prostatectomy at the University of Kentucky from 2006 to 2013 were evaluated. Patients were retrospectively case matched based on pathologic stage (pT2 versus pT3/4) using biopsy Gleason grade and prostate-specific antigen...
December 2016: Canadian Journal of Urology
https://www.readbyqxmd.com/read/27995115/impact-of-gleason-pattern-5-on-outcomes-of-patients-with-prostate-cancer-and-iodine-125-prostate-brachytherapy
#20
Tomoyuki Makino, Sotaro Miwa, Kiyoshi Koshida
BACKGROUND: The Gleason grading system is a powerful predictor of prostate cancer (PCa) prognosis. Gleason scores (GS) of 8-10 are considered as a single high-risk grade category, and Gleason Pattern 5 (GP5) predicts biochemical recurrence. We report the clinical outcomes of patients treated with (125)I prostate brachytherapy for clinically localized PCa and prognosis in the presence or absence of GP5. METHODS: We enrolled 316 patients with T1c-T2N0M0 PCa and undergoing prostate brachytherapy treatment...
December 2016: Prostate International
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