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https://www.readbyqxmd.com/read/28449007/efficacy-of-stereotactic-body-radiotherapy-in-oligorecurrent-and-in-oligoprogressive-prostate-cancer-new-evidence-from-a-multicentric-study
#1
Luca Triggiani, Filippo Alongi, Michela Buglione, Beatrice Detti, Riccardo Santoni, Alessio Bruni, Ernesto Maranzano, Frank Lohr, Rolando D'Angelillo, Alessandro Magli, Alberto Bonetta, Rosario Mazzola, Nadia Pasinetti, Giulio Francolini, Gianluca Ingrosso, Fabio Trippa, Sergio Fersino, Paolo Borghetti, Paolo Ghirardelli, Stefano Maria Magrini
BACKGROUND: The aim of the present study is to evaluate the impact of metastases-directed stereotactic body radiotherapy in two groups of oligometastatic prostate cancer (PC) patients: oligorecurrent PC and oligoprogressive castration-resistant PC (oligo-CRPC). METHODS: Inclusion criteria of the present multicentre retrospective analysis were: (1) oligorecurrent PC, defined as the presence of 1-3 lesions (bone or nodes) detected with choline positron emission tomography or CT plus bone scan following biochemical recurrence; (2) oligo-CRPC, defined as metastases (bone or nodes) detected after a prostatic-specific antigen rise during androgen deprivation therapy (ADT)...
April 27, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28441008/simultaneous-detection-of-dual-prostate-specific-antigens-using-surface-enhanced-raman-scattering-based-immunoassay-for-accurate-diagnosis-of-prostate-cancer
#2
Ziyi Cheng, Namhyun Choi, Rui Wang, Sangyeop Lee, Kyung Chul Moon, Soo-Young Yoon, Lingxin Chen, Jaebum Choo
Accurate analysis of specific biomarkers in clinical serum is essential for early diagnosis and treatment of cancer. Here, a surface-enhanced Raman scattering (SERS)-based immunoassay, using magnetic beads and SERS nano tags, was developed for the determination of free to total (f/t) prostate specific antigen (PSA) ratio to improve the diagnostic performance of prostate cancer. To assess the clinical applicability of the proposed method, SERS-based assays for the simultaneous detection of dual PSA markers, free PSA (f-PSA) and complexed PSA (c-PSA), were performed for clinical samples in the gray zone between 4...
April 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28432523/hypothesis-free-analyses-from-a-large-psoriatic-arthritis-cohort-support-merger-to-consolidated-peripheral-arthritis-definition-without-subtyping
#3
Daniel Stekhoven, Almut Scherer, Michael J Nissen, Véronique Grobéty, Nikhil Yawalkar, Peter M Villiger, Burkhard Möller
Current ClASsification criteria for Psoriatic ARthritis classification criteria for psoriatic arthritis (PsA) provide a preliminary definition of inflammatory articular disease. This study aimed to further characterize PsA peripheral arthritis using purely data-driven approaches for the affected joint distribution pattern. PsA patients from the Swiss Clinical Quality Management in Rheumatic Diseases (SCQM) database were clustered according to similarities in 66 swollen and in 68 tender joints. Clusters were compared in terms of other disease characteristics and studied for coincidence with traditional PsA subtypes, stability over time and treatment response upon first tumour necrosis factor alpha (TNF-α) therapy...
April 22, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28429372/long-term-clinical-impact-of-psa-surge-in-castration-resistant-prostate-cancer-patients-treated-with-abiraterone
#4
Vincenza Conteduca, Orazio Caffo, Cristian Lolli, Michele Aieta, Emanuela Scarpi, Emanuela Bianchi, Francesca Maines, Giuseppe Schepisi, Samanta Salvi, Francesco Massari, Francesco Carrozza, Antonello Veccia, Vincenzo E Chiuri, Enrico Campadelli, Gaetano Facchini, Ugo De Giorgi
BACKGROUND: Early changes in PSA have been evaluated in association to treatment outcome. The aim of this study was to assess PSA surge phenomenon in castration-resistant prostate cancer (CRPC) patients treated with abiraterone and to correlate those variations with long-term treatment outcome. PATIENTS AND METHODS: We retrospectively evaluated 330 CRPC patients in 11 Italian hospitals, monitoring PSA levels at baseline and every 4 weeks. Other clinical, biochemical and molecular parameters were determined at baseline...
April 20, 2017: Prostate
https://www.readbyqxmd.com/read/28427756/human-tissue-kallikreins-blood-levels-and-response-to-radiotherapy-in-intermediate-risk-prostate-cancer
#5
Nicola J Nasser, John Thoms, Antoninus Soosaipillai, Melania Pintilie, Ri Wang, Eleftherios P Diamandis, Robert G Bristow
OBJECTIVES: Kallikreins are serine proteases over expressed in many malignancies. In this study, we measure changes in serum kallikrein (KLKs) levels during intensity-modulated radiotherapy (IMRT) in prostate cancer patients, and find potential correlations between serum kallikrein level and normal tissues toxicity during radiation. METHODS: Forty-nine patients with prostate cancer were recruited as follows: group 1, definitive standard fractionation IMRT (78Gy in 39 fractions, n=15); group 2, definitive hypofractionated IMRT (60Gy in 20 fractions, n=15); and group 3, IMRT postprostatectomy (66Gy in 33 fractions, n=19)...
April 17, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28427507/is-still-there-a-place-for-orteronel-in-management-of-prostate-cancer-data-from-a-literature-based-meta-analysis-of-randomized-trials
#6
REVIEW
Giandomenico Roviello, Chiara Pacifico, Giorgio Chiriacò, Daniele Generali
Orteronel (TAK-700) is an oral, non-steroidal 17,20-lyase inhibitor with higher specificity for 17,20 lyase over 17 hydroxylase. The first phase III studies showed an advantage with orteronel compared with placebo in terms of progression free survival and response of PSA. Unfortunately orteronel did not significantly prolong the overall survival. In order to assess the efficacy of orteronel in prostate cancer, we evaluated all available data on orteronel in the management of prostate cancer. A total of 2716 patients were evaluated from 3 randomized trials...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28422738/peripheral-zone-volume-ratio-pz-ratio-is-relevant-with-biopsy-results-and-can-increase-the-accuracy-of-current-diagnostic-modality
#7
Yifan Chang, Rui Chen, Qingsong Yang, Xu Gao, Chuanliang Xu, Jianping Lu, Yinghao Sun
The current diagnostic modality of prostate cancer based on prostate specific antigen (PSA) and systematic biopsy is far from ideal in terms of over-diagnosing indolent prostate cancer and missing significant ones. Thus we integrated the peripheral zone volume ratio (PZ-ratio) for diagnostic refinement. This retrospective study included 247 consecutive patients who underwent initial transrectal ultrasound-guided systematic prostate biopsy from April 2014 to November 2015. Prostate volume was determined by semi-automatic contour on axial T2 weighted magnetic resonance imaging (MRI)...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421240/a-randomised-phase-ii-study-of-repeated-rhenium-188-hedp-combined-with-docetaxel-and-prednisone-versus-docetaxel-and-prednisone-alone-in-castration-resistant-prostate-cancer-crpc-metastatic-to-bone-the-taxium-ii-trial
#8
Joyce M van Dodewaard-de Jong, John M H de Klerk, Haiko J Bloemendal, Daniela E Oprea-Lager, Otto S Hoekstra, H Pieter van den Berg, Maartje Los, Aart Beeker, Marianne A Jonker, Joe M O'Sullivan, Henk M W Verheul, Alfons J M van den Eertwegh
BACKGROUND: Rhenium-188-HEDP is a beta-emitting radiopharmaceutical used for palliation of metastatic bone pain. We investigated whether the addition of rhenium-188-HEDP to docetaxel/prednisone improved efficacy of chemotherapy in patients with CRPC. METHODS: Patients with progressive CRPC and osteoblastic bone metastases were randomised for first-line docetaxel 75 mg/m(2) 3-weekly plus prednisone with or without 2 injections of rhenium-188-HEDP after the third (40 MBq/kg) and after the sixth (20 MBq/kg) cycle of docetaxel...
April 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28418634/protein-trapping-in-plasmonic-nanoslit-and-nanoledge-cavities-the-behavior-and-sensing
#9
Zheng Zeng, Xiaojun Shi, Taylor Mabe, Shaun Christie, Grant Gilmore, Adam W Smith, Jianjun Wei
A novel plasmonic nanoledge device was presented to explore the geometry-induced trapping of nanoscale biomolecules and examine a generation of surface plasmon resonance (SPR) for plasmonic sensing. To design an optimal plasmonic device, a semi-analytical model was implemented for a quantitative analysis of SPR under plane-wave illumination and a finite-difference time-domain (FDTD) simulation was used to study the optical transmission and refractive index (RI) sensitivity. In addition, total internal reflection fluorescence (TIRF) imaging was used to visualize the migration of fluorescently labeled bovine serum albumin (BSA) into the nanoslits; and fluorescence correlation spectroscopy (FCS) was further used to investigate the diffusion of BSA in the nanoslits...
April 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28417429/approach-to-androgen-deprivation-in-the-prostate-cancer-patient-with-pre-existing-cardiovascular-disease
#10
REVIEW
Alyssa K Greiman, Thomas E Keane
PURPOSE OF REVIEW: Androgen deprivation therapy (ADT) is a mainstay of treatment for advanced prostate cancer. Several studies have reported an association between ADT and an increase in cardiovascular events, especially in those receiving gonadotropin-releasing hormone (GnRH) agonists compared to GnRH antagonists. We review the body of literature reporting the association of ADT and cardiovascular morbidity, and discuss the proposed mechanism of cardiovascular disease due to ADT including metabolic changes that may promote atherosclerosis and local hormonal effects that may increase plaque rupture and thrombosis...
June 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28410987/alkaline-phosphatase-velocity-predicts-overall-survival-and-bone-metastasis-in-patients-with-castration-resistant-prostate-cancer
#11
Kai H Hammerich, Timothy F Donahue, Inger L Rosner, Jennifer Cullen, Huai-Ching Kuo, Lauren Hurwitz, Yongmei Chen, Melanie Bernstein, Jonathan Coleman, Daniel C Danila, Adam R Metwalli
INTRODUCTION AND OBJECTIVES: Identifying patients with prostate cancer (CaP) who will ultimately develop bone metastasis (BM) or die of disease is essential. Alkaline phosphatase velocity (APV) has been shown to predict overall survival (OS) and bone metastasis-free survival (BMFS) in an earlier study of an equal access military patient cohort of patients with castrate-resistant prostate cancer (CRPC). To confirm these findings, we examined a cohort of patients from a high-volume cancer center to validate a previous observation that faster alkaline phosphatase (AP) kinetics are predictive of OS and BMFS in this second cohort of patients...
April 11, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28410986/predictors-of-biochemical-recurrence-after-primary-focal-cryosurgery-hemiablation-for-localized-prostate-cancer-a-multi-institutional-analytic-comparison-of-phoenix-and-stuttgart-criteria
#12
Michael Kongnyuy, Michael J Lipsky, Shahidul Islam, Dennis J Robins, Shaun Hager, Daniel M Halpern, Kaitlin E Kosinski, Jeffrey T Schiff, Anthony T Corcoran, Sven Wenske, Aaron E Katz
BACKGROUND: The Phoenix definition (PD) and Stuttgart definition (SD) designed to determine biochemical recurrence (BCR) in patients with postradiotherapy and high-intensity focused ultrasound organ-confined prostate cancer are being applied to follow patients after cryosurgery. We sought to identify predictors of BCR using the PD and SD criteria in patients who underwent primary focal cryosurgery (PFC). MATERIALS AND METHODS: We performed a retrospective review of patients who underwent PFC (hemiablation) at 2 referral centers from 2000 to 2014...
April 11, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28399576/local-tumor-control-and-dna-pk-activity-of-peripheral-blood-lymphocytes-in-prostate-cancer-patients-receiving-radiotherapy
#13
Masanori Someya, Tomokazu Hasegawa, Masakazu Hori, Yoshihisa Matsumoto, Kensei Nakata, Naoya Masumori, Koh-Ichi Sakata
Repair of DNA damage is critical for genomic stability, and DNA-dependent protein kinase (DNA-PK) has an important role in repairing double-strand breaks. We examined whether the DNA-PK activity of peripheral blood lymphocytes (PBLs) was related to biochemical (prostate-specific antigen: PSA) relapse and radiation toxicity in prostate cancer patients who have received radiotherapy. A total of 69 patients with localized adenocarcinoma of the prostate participated in this study. Peripheral blood was collected 2 years or later after radiotherapy and centrifuged, then DNA-PK activity was measured by a filter binding assay...
March 1, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28396511/a-database-augmented-exosome-based-mass-spectrometry-approach-exemplarily-identifies-circulating-claudin-3-as-biomarker-in-prostate-cancer
#14
Thomas Stefan Worst, Jost von Hardenberg, Julia Christina Gross, Philipp Erben, Martina Schnoelzer, Ingrid Hausser, Peter Bugert, Maurice Stephan Michel, Michael Boutros
In prostate cancer and other malignancies sensitive and robust biomarkers are lacking or have relevant limitations. Prostate specific antigen (PSA), the only biomarker widely used in prostate cancer, is suffering from low specificity. Exosomes offer new perspectives in the discovery of blood-based biomarkers. Here we present a proof-of principle study for a proteomics-based identification pipeline, implementing existing data sources, to exemplarily identify exosome-based biomarker candidates in prostate cancer...
April 9, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28392705/long-noncoding-rna-linc01296-is-associated-with-poor-prognosis-in-prostate-cancer-and-promotes-cancer-cell-proliferation-and-metastasis
#15
Jie Wu, Gong Cheng, Cheng Zhang, Yuxiao Zheng, Haoxiang Xu, Haiwei Yang, Lixin Hua
BACKGROUND/PURPOSE: Long noncoding RNAs (lncRNAs) have emerged as important regulators and biomarkers of tumor development and progression. This study investigated the clinical significance, biological functions, and underlying mechanisms of long intergenic non-protein-coding RNA 1296 (LINC01296) in prostate cancer. MATERIALS AND METHODS: LINC01296 expression in prostate cancer tissues and cell lines was detected by quantitative real-time polymerase chain reaction (qRT-PCR)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28385075/propensity-score-matched-comparison-of-partial-to-whole-gland-cryotherapy-for-intermediate-risk-prostate-cancer-an-analysis-of-the-cold-registry-data
#16
Kae Jack Tay, Thomas J Polascik, Ahmed El-Shafei, Efrat Tsivian, J Stephen Jones
OBJECTIVE: To compare the oncological and functional outcomes of partial versus whole-gland cryotherapy for men with intermediate-risk prostate cancer. SUBJECTS/PATIENTS: Men with intermediate-risk prostate cancer treated with primary prostate cryotherapy from 1993-2013 were selected from the Cryo On-Line Data Registry for a 1:1 matched comparison between those undergoing whole-gland and partial prostate cryotherapy (targeted-ablation, unilateral/bilateral nerve-sparing ablations)...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28384926/trus-biopsy-yield-in-indian-population-a-retrospective-analysis
#17
Sunil Raghunath Patil, Prakash Wamanrao Pawar, Ajit Somaji Sawant, Akshay Vijay Patil, Sayalee Suryabhan Narwade, Shankar Tanaji Mundhe, Abhishek Jaysukhbhai Savalia, Ashwin Sunil Tamhankar
INTRODUCTION: The reported cancer detection rate of Trans-Rectal Ultrasonography (TRUS) biopsies (TRUS biopsy yield) has been around 30 percent in western countries. However it is much lower in Asian countries, including India. Hence a larger proportion of patients in India undergo unnecessary biopsies. AIMS: To find out the cancer detection rate of TRUS biopsy (TRUS biopsy yield) in contemporary Indian population. Also, to study the positive predictive values at different serum Prostate-Specific Antigen (PSA)/PSA Density (PSAD) cut off levels and suspicious Digital Rectal Examination (DRE) findings...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28384567/integration-of-membrane-distillation-with-solar-photo-fenton-for-purification-of-water-contaminated-with-bacillus-sp-and-clostridium-sp-spores
#18
A Ruiz-Aguirre, M I Polo-López, P Fernández-Ibáñez, G Zaragoza
Although Membrane Distillation (MD) has been extensively studied for desalination, it has other applications like removing all kinds of solutes from water and concentrating non-volatile substances. MD offers the possibility of producing a clean stream while concentrating valuable compounds from waste streams towards their recovery, or emerging contaminants and pathogens present in wastewater in order to facilitate their chemical elimination. This paper analyses the elimination of bacterial spores from contaminated water with MD and the role of MD in the subsequent treatment of the concentrate with photo-Fenton process...
April 3, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28384066/clinical-significance-of-androgen-receptor-splice-variant-7-mrna-detection-in-circulating-tumor-cells-of-men-with-metastatic-castration-resistant-prostate-cancer-treated-with-first-and-second-line-abiraterone-and-enzalutamide
#19
Emmanuel S Antonarakis, Changxue Lu, Brandon Luber, Hao Wang, Yan Chen, Yezi Zhu, John L Silberstein, Maritza N Taylor, Benjamin L Maughan, Samuel R Denmeade, Kenneth J Pienta, Channing J Paller, Michael A Carducci, Mario A Eisenberger, Jun Luo
Purpose We reported previously that the detection of androgen receptor splice variant-7 (AR-V7) mRNA in circulating tumor cells (CTCs) correlated with poor outcomes from the use of abiraterone and enzalutamide in patients with castration-resistant prostate cancer (CRPC). Here, we expanded our cohort size to better characterize the prognostic significance of AR-V7 in this setting. Methods We prospectively enrolled 202 patients with CRPC starting abiraterone or enzalutamide and investigated the prognostic value of CTC detection (+ v -) and AR-V7 detection (+ v -) using a CTC-based AR-V7 mRNA assay...
April 6, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28383613/can-psa-reflex-algorithm-be-a-valid-alternative-to-other-psa-based-prostate-cancer-screening-strategies
#20
G Caldarelli, G Troiano, D Rosadini, N Nante
BACKGROUND: The available laboratory tests for the differential diagnosis of prostate cancer, are represented by the total PSA, the free PSA, and the free/total PSA ratio. In Italy most of doctors tend to request both total and free PSA for their patients even in cases where the total PSA doesn't justify the further request of free PSA, with a consequent growth of the costs for the National Health System. The aim of our study was to predict the saving in Euro (due to reagents) and reduction in free PSA tests, applying the "PSA Reflex" algorithm...
May 2017: Annali di Igiene: Medicina Preventiva e di Comunità
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