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Prostate specific antigen

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https://www.readbyqxmd.com/read/28938672/comparing-the-clinical-efficacy-of-abiraterone-acetate-enzalutamide-and-orteronel-in-patients-with-metastatic-castration-resistant-prostate-cancer-by-performing-a-network-meta-analysis-of-eight-randomized-controlled-trials
#1
Minyong Kang, Chang Wook Jeong, Cheol Kwak, Ja Hyeon Ku, Hyeon Hoe Kim
Various novel androgen receptor (AR) targeting drugs have been developed recently and have shown beneficial effects on survival in patients with metastatic castration-resistant prostate cancer (mCRPC). However, no consensus has been reached regarding which of these agents provides the most favorable oncological outcomes. Here, we aimed to compare the efficacy of novel AR-targeted agents by performing a network meta-analysis of randomized controlled trials (RCTs). We included eight RCTs for men with mCRPC treated with one of the AR targeting agents: abiraterone acetate, enzalutamide, or orteronel...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938580/diagnostic-significance-of-urinary-long-non-coding-pca3-rna-in-prostate-cancer
#2
Tao Wang, Xiangyun Qu, Jiajia Jiang, Peng Gao, Dingding Zhao, Xueqi Lian, Xiaohua Li
Prostate cancer antigen 3(PCA3) is a long non-coding RNA, which was found increased expression in CaP patients than healthy individual. In this study, the individual nucleic acid of PCA3 and PSA was recombinant expressed as a reference reagent, and a quantitative RT-PCR with TaqMan assay was developed to examine the copies of PCA3 and PSA gene in urine. The results showed that the area under the receiver operating characteristic curve (AUROC) was 0.717, 0.444 and 0.916 for the number of PCA3 copy, PSA copy and for the score of PCA3/PSA RNA, respectively...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938548/promoter-dna-methylation-analysis-reveals-a-combined-diagnosis-of-cpg-based-biomarker-for-prostate-cancer
#3
Yuanyuan Tang, Shusuan Jiang, Yinmin Gu, Weidong Li, Zengnan Mo, Yuanjie Huang, Tianyu Li, Yanling Hu
BACKGROUND: Prostate cancer (PCa) is the most common tumor in elderly men. However, the specificity and sensitivity of serum prostate-specific antigen levels in PCa diagnosis are controversial. This study aims to reveal a novel diagnosis biomarker in PCa. MATERIALS AND METHODS: The differential methylated CpG sites between 423 primary PCa and 39 adjacent samples from The Cancer Genome Atlas (TCGA) on Illumina HumanMethylation 450 platform were analyzed. The diagnostic methylation markers were mined using the Prediction Analysis of Microarrays package in Bioconductor...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28936267/roles-of-kallikrein-2-biomarkers-free-hk2-and-pro-hk2-for-predicting-prostate-cancer-progression-free-survival
#4
Anatilde Gonzalez Guerrico, David Hillman, Jeffery Karnes, Brian Davis, Steven Gaston, George Klee
Free human kallikrein 2 (free-hK2) and hK2 pro-form (pro-hK2) have been found to be increased in tumor tissues and serum from patients with prostate cancer. We established semiautomatic assays for free-hK2 and pro-hK2 using a research version of the Beckman Coulter ACCESS2 system. Serum samples from a cohort of 189 men undergoing radical prostatectomy for known high-risk disease were assayed for Prostate-Specific Antigen (PSA), free-PSA, free-hK2, and pro-hK2. Univariate Cox regression and multivariate models were used to predict both Gleason scores and progression-free survival (PFS)...
January 2017: J Circ Biomark
https://www.readbyqxmd.com/read/28935568/genetically-engineered-oncolytic-newcastle-disease-virus-mediates-cytolysis-of-prostate-cancer-stem-like-cells
#5
Raghunath Shobana, Raghavendra Sumanth Pudupakam, Adria Allen, Moanaro Biswas, Nammalwar Sriranganathan
Oncolytic virotherapy is a promising novel approach that overcomes the limitations posed by radiation and chemotherapy. In this study, the oncolytic efficacy of a recombinant Newcastle disease virus (rNDV) BC-KLQL-GFP, against prostate cancer stem-like/tumor initiating cells was evaluated. Xenograft derived prostaspheres (XPS) induced tumor more efficiently than monolayer cell derived prostaspheres (MCPS) in nude mice. Primary and secondary XPS show enhanced self-renewal and clonogenic potential compared to MCPS...
September 18, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28934131/tissue-based-micrornas-as-predictors-of-biochemical-recurrence-after-radical-prostatectomy-what-can-we-learn-from-past-studies
#6
REVIEW
Zhongwei Zhao, Carsten Stephan, Sabine Weickmann, Monika Jung, Glen Kristiansen, Klaus Jung
With the increasing understanding of the molecular mechanism of the microRNAs (miRNAs) in prostate cancer (PCa), the predictive potential of miRNAs has received more attention by clinicians and laboratory scientists. Compared with the traditional prognostic tools based on clinicopathological variables, including the prostate-specific antigen, miRNAs may be helpful novel molecular biomarkers of biochemical recurrence for a more accurate risk stratification of PCa patients after radical prostatectomy and may contribute to personalized treatment...
September 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28932626/complete-biochemical-response-after-pulmonary-metastasectomy-in-prostate-adenocarcinoma
#7
Jonathan Rush, Reet Pai, Rahul A Parikh
BACKGROUND: Prostate cancer most commonly metastasizes to bones or lymph nodes, and metastatic prostate cancer is suggestive of disseminated disease. Metastatic disease is usually not amenable to surgery. CASE PRESENTATION: The current report presents a unique case of in which the excision of a solitary pulmonary metastasis resulted in undetectable prostate-specific antigen. CONCLUSION: This case and others suggest metastasectomy could be considered in cases with solitary metastasis, and physicians should have a careful discussion regarding risks and possible benefits from surgical excision...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28931859/a-longitudinal-analysis-of-the-vaginal-microbiota-and-vaginal-immune-mediators-in-women-from-sub-saharan-africa
#8
Vicky Jespers, Jordan Kyongo, Sarah Joseph, Liselotte Hardy, Piet Cools, Tania Crucitti, Mary Mwaura, Gilles Ndayisaba, Sinead Delany-Moretlwe, Jozefien Buyze, Guido Vanham, Janneke H H M van de Wijgert
In cross-sectional studies increased vaginal bacterial diversity has been associated with vaginal inflammation which can be detrimental for health. We describe longitudinal changes at 5 visits over 8 weeks in vaginal microbiota and immune mediators in African women. Women (N = 40) with a normal Nugent score at all visits had a stable lactobacilli dominated microbiota with prevailing Lactobacillus iners. Presence of prostate-specific antigen (proxy for recent sex) and being amenorrhoeic (due to progestin-injectable use), but not recent vaginal cleansing, were significantly associated with microbiota diversity and inflammation (controlled for menstrual cycle and other confounders)...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931402/recent-advances-of-bispecific-antibodies-in-solid-tumors
#9
REVIEW
Shengnan Yu, Anping Li, Qian Liu, Xun Yuan, Hanxiao Xu, Dechao Jiao, Richard G Pestell, Xinwei Han, Kongming Wu
Cancer immunotherapy is the most exciting advancement in cancer therapy. Similar to immune checkpoint blockade and chimeric antigen receptor T cell (CAR-T), bispecific antibody (BsAb) is attracting more and more attention as a novel strategy of antitumor immunotherapy. BsAb not only offers an effective linkage between therapeutics (e.g., immune effector cells, radionuclides) and targets (e.g., tumor cells) but also simultaneously blocks two different oncogenic mediators. In recent decades, a variety of BsAb formats have been generated...
September 20, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28930493/effect-of-comorbidity-on-prostate-cancer-specific-mortality-a-prospective-observational-study
#10
Prabhakar Rajan, Prasanna Sooriakumaran, Tommy Nyberg, Olof Akre, Stefan Carlsson, Lars Egevad, Gunnar Steineck, N Peter Wiklund
Purpose To determine the effect of comorbidity on prostate cancer (PCa)-specific mortality across treatment types. Patients and Methods These are the results of a population-based observational study in Sweden from 1998 to 2012 of 118,543 men who were diagnosed with PCa with a median follow-up of 8.3 years (interquartile range, 5.2 to 11.5 years) until death from PCa or other causes. Patients were categorized by patient characteristics (marital status, educational level) and tumor characteristics (serum prostate-specific antigen, tumor grade and clinical stage) and by treatment type (radical prostatectomy, radical radiotherapy, androgen deprivation therapy, and watchful waiting)...
September 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28930171/comprehensive-evaluation-of-tff3-promoter-hypomethylation-and-molecular-biomarker-potential-for-prostate-cancer-diagnosis-and-prognosis
#11
Maibritt Nørgaard, Christa Haldrup, Tine Maj Storebjerg, Else Marie Vestergaard, Peter J Wild, Søren Høyer, Michael Borre, Torben Falck Ørntoft, Karina Dalsgaard Sørensen
Overdiagnosis and overtreatment of clinically insignificant tumors remains a major problem in prostate cancer (PC) due to suboptimal diagnostic and prognostic tools. Thus, novel biomarkers are urgently needed. In this study, we investigated the biomarker potential of Trefoil factor 3 (TFF3) promoter methylation and RNA expression levels for PC. Initially, by quantitative methylation specific PCR (qMSP) analysis of a large radical prostatectomy (RP) cohort (n = 292), we found that the TFF3 promoter was significantly hypomethylated in PC compared to non-malignant (NM) prostate tissue samples (p < 0...
September 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28929350/optimal-mri-sequences-for-68-ga-psma-11-pet-mri-in-evaluation-of-biochemically-recurrent-prostate-cancer
#12
Spencer T Lake, Kirsten L Greene, Antonio C Westphalen, Spencer C Behr, Ronald Zagoria, Eric J Small, Peter R Carroll, Thomas A Hope
BACKGROUND: PET/MRI can be used for the detection of disease in biochemical recurrence (BCR) patients imaged with (68)Ga-PSMA-11 PET. This study was designed to determine the optimal MRI sequences to localize positive findings on (68)Ga-PSMA-11 PET of patients with BCR after definitive therapy. Fifty-five consecutive prostate cancer patients with BCR imaged with (68)Ga-PSMA-11 3.0T PET/MRI were retrospectively analyzed. Mean PSA was 7.9 ± 12.9 ng/ml, and mean PSA doubling time was 7...
September 19, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28928857/updated-nomogram-incorporating-percentage-of-positive-cores-to-predict-probability-of-lymph-node-invasion-in-prostate-cancer-patients-undergoing-sentinel-lymph-node-dissection
#13
Alexander Winter, Thomas Kneib, Clara Wasylow, Lena Reinhardt, Rolf-Peter Henke, Svenja Engels, Holger Gerullis, Friedhelm Wawroschek
Objectives: To update the first sentinel nomogram predicting the presence of lymph node invasion (LNI) in prostate cancer patients undergoing sentinel lymph node dissection (sPLND), taking into account the percentage of positive cores. Patients and Methods: Analysis included 1,870 prostate cancer patients who underwent radioisotope-guided sPLND and retropubic radical prostatectomy. Prostate-specific antigen (PSA), clinical T category, primary and secondary biopsy Gleason grade, and percentage of positive cores were included in univariate and multivariate logistic regression models predicting LNI, and constituted the basis for the regression coefficient-based nomogram...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928084/follow-up-care-for-survivors-of-prostate-cancer-clinical-management-a-program-in-evidence-based-care-systematic-review-and-clinical-practice-guideline
#14
A Loblaw, L H Souter, C Canil, R H Breau, M Haider, L Jamnicky, R Morash, M Surchin, A Matthew
AIMS: This clinical practice guideline was developed to provide evidence-based guidance on the frequency by which prostate-specific antigen (PSA) levels should be tested in men after curative-intent treatment for prostate cancer and to define the most appropriate diagnostic testing if biochemical recurrence occurs. MATERIALS AND METHODS: An electronic search using OVID was used to systematically search the MEDLINE and EMBASE databases for systematic reviews and primary literature...
September 16, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28927782/development-and-internal-validation-of-prediction-models-for-biochemical-failure-and-composite-failure-after-focal-salvage-high-intensity-focused-ultrasound-for-local-radiorecurrent-prostate-cancer-presentation-of-risk-scores-for-individual-patient-prognoses
#15
Max Peters, Abi Kanthabalan, Taimur T Shah, Neil McCartan, Caroline M Moore, Manit Arya, Jochem R van der Voort van Zyp, Marinus A Moerland, Richard G Hindley, Mark Emberton, Hashim U Ahmed
PURPOSE: Patient selection for focal salvage remains difficult. Therefore, we developed and internally validated prediction models for biochemical failure (BF) and a composite endpoint (CE) following focal salvage high intensity focused ultrasound (HIFU) for radiorecurrent prostate cancer. MATERIALS AND METHODS: A prospective HIFU registry identified 150 cases (November 2006-August 2015). Recurrence was assessed with multiparametric magnetic resonance imaging (MRI) combined with template prostate mapping biopsies, targeted biopsies, or systematic transrectal ultrasound-guided biopsies...
September 15, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28925683/3d-nanostructured-palladium-functionalized-graphene-aerogel-supported-fe3o4-for-enhanced-ru-bpy-32-based-electrochemiluminescent-immunosensing-of-prostate-specific-antigen
#16
Lei Yang, Yueyuan Li, Yong Zhang, Dawei Fan, Xuehui Pang, Qin Wei, Bin Du
We developed a novel Ru(bpy)32+-based electrochemiluminescence (ECL) immunosensor utilizing palladium nanoparticles (Pd NPs) functionalized graphene aerogel supported Fe3O4 (FGA-Pd) for real sample analysis of prostate specific antigen (PSA). 3D nanostructured FGA-Pd, as a novel ECL carrier, was prepared by in situ reduction. Large amounts of Ru(bpy)32+ could combine with FGA-Pd via electrostatic interaction to establish a brand-new ECL emitter (Ru@FGA-Pd) for improving ECL efficiency. The obtained Ru@FGA-Pd composite was utilized to label the secondary antibody, which generated strong ECL signals with tripropylamine (TPrA) as coreactant...
September 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28924629/a-psma-ligand-labeled-with-cobalt-55-for-pet-imaging-of-prostate-cancer
#17
Johan Hygum Dam, Birgitte Brinkmann Olsen, Christina Baun, Poul Flemming Høilund-Carlsen, Helge Thisgaard
PURPOSE: Prostate-specific membrane antigen (PSMA) comprises a recognized target for molecular imaging of prostate cancer. As such, radiolabeled PSMA inhibitors are of great value for diagnosis and staging of this disease. Herein, we disclose the preclinical characterization of [(55)Co]PSMA-617 for positron emission tomography (PET)/x-ray computed tomography (CT) imaging of prostate cancer lesions. PROCEDURES: By the application of microwave heating, PSMA-617 in acetate buffer (0...
September 18, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28924309/serum-psa-levels-in-the-indian-population-is-it-different
#18
Amit Agrawal, Shailesh Chandra Karan
BACKGROUND: Serum prostate-specific antigen (PSA) is an important tumour, marker which is widely used to trigger trans-rectal ultrasound (TRUS)-guided prostate biopsy. However, the PSA levels vary with race and ethnicity. Therefore, there is a need to have an Indian reference range. METHODS: All adult male patients meeting the inclusion and exclusion criteria were enrolled in this study. They were subjected to assessment of serum total PSA, digital rectal examination and trans-abdominal ultrasound...
April 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28922335/the-role-of-68ga-psma-i-t-pet-ct-in-the-pretreatment-staging-of-primary-prostate-cancer
#19
Danielle P Meyrick, Marcus Asokendaran, Laura A Skelly, Nat P Lenzo, Andrew Henderson
OBJECTIVES: This retrospective study aimed to evaluate the role of Ga-PSMA-I&T PET/CT in the primary staging of newly diagnosed prostate cancer (PCa), with a focus on the detection of metastatic nodal disease. Correlation of the rate of detection of metastatic disease by Ga-PSMA-I&T PET/CT with the Gleason score (GS) and serum prostate-specific antigen (PSA) was performed to determine the GS and PSA criteria defining patients who would benefit from Ga-PSMA-I&T PET/CT imaging for staging, risk stratification and therapy optimization...
September 15, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28921733/effects-of-individual-and-partner-factors-on-anxiety-and-depression-in-taiwanese-prostate-cancer-patients-a-longitudinal-study
#20
C H Chien, C K Chuang, K L Liu, C T Wu, S T Pang, P K Tsay, Y H Chang, X Y Huang, H E Liu
Studies exploring the mediating and predictive factors of anxiety and depression for prostate cancer patients in Eastern countries are scant. Guided by the transactional model of stress and coping, this study determined the predictors and mediators of anxiety and depression in prostate cancer patients. The participants comprised 115 prostate cancer patients and 91 partners. The patients and partners completed questionnaires regarding physical symptoms, disease appraisals, coping behaviours, anxiety and depression in the period before confirmation of treatment decisions and 1, 3, 6 and 12 months after treatment...
September 18, 2017: European Journal of Cancer Care
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