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Prostatic specific antigen

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https://www.readbyqxmd.com/read/28098061/prostate-cancer-immunotherapy-particularly-in-combination-with-androgen-deprivation-or-radiation-treatment-customized-pharmacogenomic-approaches-to-overcome-immunotherapy-cancer-resistance
#1
REVIEW
C Alberti
Conventional therapeutic approaches for advanced prostate cancer - such as androgen deprivation, chemotherapy, radiation - come up often against lack of effectiveness because of possible arising of correlative cancer cell resistance and/or inadequate anti-tumor immune conditions. Whence the timeliness of resorting to immune-based treatment strategies including either therapeutic vaccination-based active immunotherapy or anti-tumor monoclonal antibody-mediated passive immunotherapy. Particularly attractive, as for research studies and clinical applications, results to be the cytotoxic T-lymphocyte check point blockade by the use of anti-CTLA-4 and PD-1 monoclonal antibodies, particularly when combined with androgen deprivation therapy or radiation...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28097317/surrogate-end-points-for-all-cause-mortality-in-men-with-localized-unfavorable-risk-prostate-cancer-treated-with-radiation-therapy-vs-radiation-therapy-plus-androgen-deprivation-therapy-a-secondary-analysis-of-a-randomized-clinical-trial
#2
Trevor J Royce, Ming-Hui Chen, Jing Wu, Marian Loffredo, Andrew A Renshaw, Philip W Kantoff, Anthony V D'Amico
Importance: Several surrogates for prostate cancer-specific mortality satisfying the Prentice criteria exist, but whether these are surrogates for all-cause mortality, and how their performance compares, is unknown. Objective: To ascertain and compare the performance of 4 candidate surrogates (prostate-specific antigen [PSA] failure, PSA nadir >0.5 ng/mL, PSA doubling time <9 months, and interval to PSA failure <30 months) for all-cause mortality using the proportion of treatment-effect metric...
January 12, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28096933/the-association-of-male-pattern-baldness-and-risk-of-cancer-and-high-grade-disease-among-men-presenting-for-prostate-biopsy
#3
Ghazi Al Edwan, Bimal Bhindi, David Margel, Karen Chadwick, Antonio Finelli, Alexandre Zlotta, John Trachtenberg, Neil Fleshner
INTRODUCTION: Androgens have been implicated in both male pattern baldness (MPB) and prostate cancer (PCa). We set out to prospectively determine if men with independently assessed MPB are at higher risk for PCa at biopsy and determine if any grade associations exist. METHODS: We prospectively enrolled 394 eligible patients presenting for prostate biopsy and independently determined their MPB pattern using the validated modified Norwood classification system (0: no balding; 1: frontal balding; 2: mild vertex balding; 3: moderate vertex balding; 4: sever vertex balding)...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096916/an-audit-of-referral-and-treatment-patterns-of-high-risk-prostate-cancer-patients-in-alberta
#4
Majed Alghamdi, Amandeep Taggar, Derek Tilley, Marc Kerba, Xanthoula Kostaras, Geoffrey Gotto, Michael Sia
INTRODUCTION: We aimed to determine the impact of clinical practice guidelines (CPG) on rates of radiation oncologist (RO) referral, androgen-deprivation therapy (ADT), radiation therapy (RT), and radical prostatectomy (RP) in patients with high-risk prostate cancer (HR-PCa). METHODS: All men >18 years, diagnosed with PCa in 2005 and 2012 were identified from the Alberta Cancer Registry. Patient age, aggregated clinical risk group (ACRG) score, Gleason score (GS), pre-treatment prostate-specific antigen (PSA), RO referral, and treatment received were extracted from electronic medical records...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096182/treatment-of-locally-advanced-prostate-cancer-stage-t3
#5
Yoshiyasu Amiya, Yasutaka Yamada, Masahiro Sugiura, Makoto Sasaki, Takayuki Shima, Noriyuki Suzuki, Hiroomi Nakatsu, Shino Murakami, Jun Shimazaki
OBJECTIVE: Formerly, locally advanced prostate cancer exhibited poorly prognosis. In the late 1990s, new surgical and radiation technologies were introduced in combination with androgen deprivation. To evaluate respective strategies, outcomes were examined. PATIENTS AND METHODS: Between 2001 and 2010, 224 patients with T3N0M0 (10.9% of all prostate cancer cases) were treated with prostatectomy, external beam radiation therapy with/without androgen deprivation or hormone alone...
January 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28095874/clinicopathological-study-of-9-cases-of-prostate-cancer-involving-the-rectal-wall
#6
Tao Tang, Zhengduo Yang, Dan Zhang, Jie Qu, Guang Liu, Shiwu Zhang
BACKGROUND: Prostate cancer involving the rectal wall is rare and may lead to diagnostic pitfalls. CASE PRESENTATION: Out of 9504 patients with rectal tumors between January 2003 and January 2015, 9 patients (elderly with a mean age of 74 years) with prostate cancer involving the rectal wall were clinically misdiagnosed with rectal cancer. The lesions were located in the rectum, and included 3 circumferential rectal masses, 1 ulceration lesion, 1 crater-like mass, and 4 protruding lesions...
January 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28094199/risk-of-prostate-cancer-diagnosis-and-mortality-in-men-with-a-benign-initial-transrectal-ultrasound-guided-biopsy-set-a-population-based-study
#7
Nina Klemann, M Andreas Røder, J Thomas Helgstrand, Klaus Brasso, Birgitte G Toft, Ben Vainer, Peter Iversen
BACKGROUND: The risk of missing prostate cancer in the transrectal ultrasound-guided systematic biopsies of the prostate in men with suspected prostate cancer is a key problem in urological oncology. Repeat biopsy or MRI-guided biopsies have been suggested to increase sensitivity for diagnosis of prostate cancer, but the risk of disease-specific mortality in men who present with raised prostate-specific antigen (PSA) concentration and a benign initial biopsy result remains unknown. We investigated the risk of overall and prostate cancer-specific mortality in men with a benign initial biopsy set...
January 13, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28090758/bringing-clarity-or-confusion-the-role-of-prostate-specific-membrane-antigen-positron-emission-computed-tomography-for-primary-staging-in-prostate-cancer
#8
EDITORIAL
Declan G Murphy, Michael Hofman, Nathan Lawrentschuk, Tobias Maurer
No abstract text is available yet for this article.
February 2017: BJU International
https://www.readbyqxmd.com/read/28081352/removing-the-specimen-with-traction-during-robotic-radical-prostatectomy-does-not-cause-a-positive-surgical-margin
#9
Serkan Altınova, Abidin Egemen İşgören, Ziya Akbulut, Muhammet Fuat Özcan, Abdullah Erdem Canda, Ali Fuat Atmaca, Mevlana Derya Balbay
BACKGROUND/AIM: The aim of this study was to gauge whether removal of a specimen with traction during robot-assisted laparoscopic radical prostatectomy causes a positive surgical margin or not. MATERIALS AND METHODS: One hundred and sixty-nine patients with localized prostate cancer who underwent robot-assisted laparoscopic radical prostatectomy from 2009 to 2011 were included in the study. After dividing the patients into two groups, we recorded their characteristics and pre-op/post-op evaluations...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081259/frequency-of-propionibacterium-acnes-infection-in-prostate-glands-with-negative-biopsy-results-is-an-independent-risk-factor-for-prostate-cancer-in-patients-with-increased-serum-psa-titers
#10
Tomoya Kakegawa, Yuan Bae, Takashi Ito, Keisuke Uchida, Masaki Sekine, Yutaka Nakajima, Asuka Furukawa, Yoshimi Suzuki, Jiro Kumagai, Takumi Akashi, Yoshinobu Eishi
BACKGROUND: Propionibacterium acnes has recently been implicated as a cause of chronic prostatitis and this commensal bacterium may be linked to prostate carcinogenesis. The occurrence of intracellular P. acnes infection in prostate glands and the higher frequency of P. acnes-positive glands in radical prostatectomy specimens from patients with prostate cancer (PCa) than in those from patients without PCa led us to examine whether the P. acnes-positive gland frequency can be used to assess the risk for PCa in patients whose first prostate biopsy, performed due to an increased prostate-specific antigen (PSA) titer, was negative...
2017: PloS One
https://www.readbyqxmd.com/read/28074780/mri-directed-cognitive-fusion-guided-biopsy-of-the-anterior-prostate-tumors
#11
Ian G Murphy, Elaine NiMhurchu, Robert G Gibney, Colm J McMahon
PURPOSE: We aimed to evaluate the efficacy of magnetic resonance imaging (MRI)-directed cognitive fusion transrectal ultrasonography (TRUS)-guided anterior prostate biopsy for diagnosis of anterior prostate tumors and to illustrate this technique. METHODS: A total of 39 patients with previous negative TRUS biopsy, but high clinical suspicion of occult prostate cancer, prospectively underwent prostate MRI including diffusion-weighted imaging (DWI). Patients with a suspicious anterior lesion on MRI underwent targeted anterior gland TRUS guided biopsy with cognitive fusion technique using sagittal probe orientation...
January 11, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28073842/expression-of-cd14-il-10-and-tolerogenic-signature-in-dendritic-cells-inversely-correlate-with-response-to-tarp-vaccination-in-prostate-cancer-patients
#12
Luciano Castiello, Marianna Sabatino, Jiaqiang Ren, Masaki Terabe, Hanh Khuu, Lauren V Wood, Jay A Berzofsky, David F Stroncek
PURPOSE: Despite the vast number of clinical trials conducted so far, Dendritic cell (DC)-based cancer vaccines have mostly shown unsatisfactory results. Factors and manufacturing procedures essential for these therapeutics to induce effective anti-tumor immune responses have yet to be fully characterized. We here aimed to identify DC markers correlating with clinical and immunological response in a prostate carcinoma vaccination regimen. EXPERIMENTAL DESIGN: We performed an extensive characterization of DCs used to vaccinate 18 prostate carcinoma patients enrolled in a pilot trial of TCR gamma alternate reading frame protein (TARP) peptide vaccination (NCT00908258)...
January 10, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28073286/bipolar-plasmakinetic-enucleo-resection-of-the-prostate-our-exp%C3%A3-rience-with-245-patients-for-3-years-of-follow-up
#13
Ahmed Abou-Taleb, Waleed El-Shaer, Wael Saber, Tarek Gharib, Alaa Elshaer
OBJECTIVE: the aim of this study was to evaluate the safety, feasibility and effectiveness of bipolar transurethral plasmakinetic enucleation of the prostate (PKEP). PATIENTS AND METHOD: Between January 2010 and October 2013, 245 patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) underwent transurethral enucleation of prostate using bipolar plasma vaporization energy. They were evaluated pre-operatively by Full detailed history, examination especially digital rectal examination (DRE), routine pre-operative investigation, serum prostate-specific antigen (PSA), abdominal and trans-rectal ultrasonography (US) and Maximum flow rates (Qmax)...
January 10, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28070166/biochemical-recurrence-prediction-in-high-risk-prostate-cancer-patients-following-robot-assisted-radical-prostatectomy
#14
Noriya Yamaguchi, Tetsuya Yumioka, Hideto Iwamoto, Toshihiko Masago, Shuichi Morizane, Masashi Honda, Takehiro Sejima, Atsushi Takenaka
BACKGROUND: High-risk prostate cancer treatment has been controversial. Some high-risk prostate cancer patients fail to respond to radical prostatectomy only. Thus, we aimed to investigate the predictive factors for biochemical recurrence (BCR) and identify patients who could achieve sufficient therapeutic effect by radical prostatectomy only. METHODS: Of 264 medical records reviewed, 141 low-intermediate-risk and 100 high-risk prostate cancer patients, excluding those who had received neoadjuvant hormone therapy, were analyzed...
December 2016: Yonago Acta Medica
https://www.readbyqxmd.com/read/28069853/sharp-decline-in-prostate-cancer-treatment-among-men-in-the-general-population-but-not-among-diagnosed-men
#15
Tudor Borza, Samuel R Kaufman, Vahakn B Shahinian, Phyllis Yan, David C Miller, Ted A Skolarus, Brent K Hollenbeck
The indolent nature of many prostate cancers has heightened concerns that harms from treatment may outweigh those from the disease and has resulted in a growing consensus in favor of less aggressive screening and treatment. We sought to understand the population-level impact of this consensus on the treatment of prostate cancer. Using national Medicare data for the period 2007-12, we assessed treatment rates among men with newly diagnosed prostate cancer. We identified both population-based rates (which are sensitive to changes in diagnosis and treatment patterns) and rates among diagnosed men (which are sensitive only to changes in treatment patterns)...
January 1, 2017: Health Affairs
https://www.readbyqxmd.com/read/28069159/developing-a-new-pi-rads-v2-based-nomogram-for-forecasting-high-grade-prostate-cancer
#16
X-K Niu, W-F He, Y Zhang, S K Das, J Li, Y Xiong, Y-H Wang
AIM: To establish a predictive nomogram for high-grade prostate cancer (HGPCa) in biopsy-naive patients based on the Prostate Imaging-Reporting and Data System version 2 (PI-RADS v2), magnetic resonance imaging (MRI)-based prostate volume (PV), MRI-based PV-adjusted prostate-specific antigen density (PSAD), and other classical parameters. MATERIAL AND METHODS: Between August 2014 and August 2015, 158 men who were eligible for analysis were included as the training cohort...
January 6, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28068243/sentinel-lymph-node-dissection-to-select-clinically-node-negative-prostate-cancer-patients-for-pelvic-radiation-therapy-effect-on-biochemical-recurrence-and-systemic-progression
#17
Nikolaos Grivas, Esther Wit, Floris Pos, Jeroen de Jong, Erik Vegt, Axel Bex, Kees Hendricksen, Simon Horenblas, Gijs KleinJan, Bas van Rhijn, Henk van der Poel
PURPOSE: To assess the efficacy of robotic-assisted laparoscopic sentinel lymph node (SLN) dissection (SLND) to select those patients with prostate cancer (PCa) who would benefit from additional pelvic external beam radiation therapy and long-term androgen deprivation therapy (ADT). METHODS AND MATERIALS: Radioisotope-guided SLND was performed in 224 clinically node-negative patients scheduled to undergo external beam radiation therapy. Patients with histologically positive SLNs (pN1) were also offered radiation therapy to the pelvic lymph nodes, combined with 3 years of ADT...
February 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28068151/prognostic-impact-of-pretreatment-neutrophil-to-lymphocyte-ratio-in-castration-resistant-prostate-cancer-patients-treated-with-first-line-docetaxel
#18
Consuelo Buttigliero, Chiara Pisano, Marcello Tucci, Francesca Vignani, Valentina Bertaglia, Davide Iaconis, Pamela Guglielmini, Gianmauro Numico, Giorgio V Scagliotti, Massimo Di Maio
BACKGROUND: The neutrophil-to-lymphocyte ratio (NLR), a measure of systemic inflammatory response, has been associated with poor outcome in several solid tumors, including prostate cancer. We retrospectively investigated the prognostic role of pretreatment NLR in metastatic castration-resistant prostate cancer (mCRPC) patients treated with first-line docetaxel. METHODS: All CRPC patients treated with first-line docetaxel at two Italian institutions, with available data about baseline neutrophil and lymphocyte values, were included in this retrospective analysis...
January 9, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28067370/automated-3d-printed-unibody-immunoarray-for-chemiluminescence-detection-of-cancer-biomarker-proteins
#19
C K Tang, A Vaze, J F Rusling
A low cost three-dimensional (3D) printed clear plastic microfluidic device was fabricated for fast, low cost automated protein detection. The unibody device features three reagent reservoirs, an efficient 3D network for passive mixing, and an optically transparent detection chamber housing a glass capture antibody array for measuring chemiluminescence output with a CCD camera. Sandwich type assays were built onto the glass arrays using a multi-labeled detection antibody-polyHRP (HRP = horseradish peroxidase)...
January 9, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28064129/a-novel-sandwich-type-electrochemical-immunosensor-for-psa-detection-based-on-ptcu-bimetallic-hybrid-2d-2d-rgo-g-c3n4
#20
Jinhui Feng, Yueyun Li, Mingdang Li, Faying Li, Jian Han, Yunhui Dong, Zhiwei Chen, Ping Wang, Hui Liu, Qin Wei
In this work, a sensitive sandwich-type electrochemical immunosensor was designed for the quantitative detection of prostate-specific antigen (PSA) by amperometric i-t. The Au loaded on thionine functionalized graphene oxide (Au@Th/GO) was used as a platform to immobilize primary antibodies (Ab1) and accelerate the electron transfer on the electrode interface. PtCu bimetallic hybrid were loaded on 2D/2D reduced graphene oxide/graphitic carbon nitride (PtCu@rGO/g-C3N4) with large surface area and biocompatibility, which were employed as labels for combining secondary antibodies (Ab2) and amplifying signals to improve the sensitivity of the designed immunosensor which attributes to its good activity for the reduction of hydrogen peroxide (H2O2)...
December 31, 2016: Biosensors & Bioelectronics
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