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Prostate specific antigen

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https://www.readbyqxmd.com/read/28103659/-a-case-of-giant-prostate-carcinoma-effectively-treated-with-external-beam-radiation-therapy
#1
Sohei Kanda, Shintaro Narita, Naoki Komine, Seiichi Kitajima, Misa Yamauchi, Akihiro Sugita, Yutaka Saito, Tomonori Habuchi
We present a case of gigantic prostate tumor in a patient with castration-resistant prostate cancer with successful local control by external-beam radiation therapy. A 71-year-old man was shown to have a prostate specific antigen (PSA)level of 24.5 ng/ml, Gleason 9, cT2N1M1a, prostate adenocarcinoma with an estimated prostate volume of 26.9 g. He achieved a PSA nadir at 4 months after the initial androgen deprivation therapy and was diagnosed with castration-resistant prostate cancer three years later. Eight months after the diagnosis of castration-resistant prostate cancer, he visited our hospital due to urinary retention...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28103658/-etoposide-and-carboplatin-effective-for-treatment-of-small-cell-carcinoma-of-prostate-a-report-of-two-cases
#2
Satoru Yumiba, Toshihisa Asakura, Takayuki Okada, Mototaka Satoh, Mikio Nin, Masao Tsujihata
Case 1 : A 76-year-old man consulted a physician because of pollakisuria, decline of urinary stream. A high level of serum prostate specific antigen (PSA) was detected and he came to our hospital. He was diagnosed to have prostate cancer, cT3aN0M1b, and was treated with combined androgen blockage (CAB). Two years and nine months later, postrenal failure appeared and serum level of neuron-specific enolase (NSE) was 162 ng/ml. We performed re-biopsy of prostate, and pathological examination indicated small cell carcinoma of the prostate...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28103656/-investigation-on-clinical-course-of-patients-after-cessation-of-long-term-successful-hormone-monotherapy-for-prostate-cancer
#3
Masahiro Uno, Shinichi Hattori, Seiichi Kato, Naruyasu Masue, Yoshinori Fujimoto
We investigated the clinical course of patients after cessation of long-term successful hormone monotherapyfor prostate cancer. Studysubjects were ten patients with prostate cancer (localized prostate cancer ; n=8, prostate cancer with bone metastasis ; n=2), who had hormone monotherapyfor over seven years, showed no signs of recurrence, and maintained prostatic-specific antigen (PSA) levels of less than the detection sensitivitylimit (<0.01 ng/ml). The mean duration of hormone therapywas 101.1 months, and the mean duration of follow-up observation from cessation of the therapywas 31...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28102570/simultaneous-determination-of-free-and-total-prostate-specific-antigen-by-a-magnetic-particle-based-time-resolved-fluoroimmunoassay
#4
Bin Zhou, Jue Zhang, Zhongwei Lv, Jun Fan, Yi Zhang, Biao Huang
OBJECTIVES: In this paper, a novel, sensitive and rapid method to simultaneously determine the free and total prostate-specific antigen (fPSA and tPSA) in serum by combining a time-resolved fluoroimmunoassay (TRFIA) and immunomagnetic separation was described. METHODS: The new approach uses magnetic particles as an immobilization matrix and means of separation, whereas the luminescent europium (Eu) and samarium (Sm) chelates are used as probes. The proposed method was evaluated via a single-step, sandwich-type TRFIA immunoassay of tPSA and fPSA as model analytes in serum...
January 19, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28102507/-44-sc-psma-617-for-radiotheragnostics-in-tandem-with-177-lu-psma-617-preclinical-investigations-in-comparison-with-68-ga-psma-11-and-68-ga-psma-617
#5
Christoph A Umbricht, Martina Benešová, Raffaella M Schmid, Andreas Türler, Roger Schibli, Nicholas P van der Meulen, Cristina Müller
BACKGROUND: The targeting of the prostate-specific membrane antigen (PSMA) is of particular interest for radiotheragnostic purposes of prostate cancer. Radiolabeled PSMA-617, a 1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid (DOTA)-functionalized PSMA ligand, revealed favorable kinetics with high tumor uptake, enabling its successful application for PET imaging ((68)Ga) and radionuclide therapy ((177)Lu) in the clinics. In this study, PSMA-617 was labeled with cyclotron-produced (44)Sc (T 1/2 = 4...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28102298/erratum-longitudinal-modeling-of-ultrasensitive-and-traditional-prostate-specific-antigen-and-prediction-of-biochemical-recurrence-after-radical-prostatectomy
#6
Teemu D Laajala, Heikki Seikkula, Fatemeh Seyednasrollah, Tuomas Mirtti, Peter J Boström, Laura L Elo
No abstract text is available yet for this article.
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101889/predictors-of-successful-trial-without-catheter-following-acute-urinary-retention-in-benign-prostatic-enlargement-a-single-centre-multivariate-analysis
#7
Ankur Bansal, Aditi Arora
OBJECTIVE: To evaluate the parameters which predict the success or failure of trial without catheter (TWOC) for acute urine retention (AUR). MATERIALS AND METHODS: Medical records of 2 188 patients presenting with first episode of AUR were analyzed. All patients underwent catheterization and were started on α-blocker followed by TWOC. Age, baseline American urological association (AUA) score, prostate volume (PV), residual volume of urine (RV) and intravesical prostatic protrusion (IPP), prostate specific antigen (PSA) were recorded...
January 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28101029/ductal-adenocarcinoma-of-the-prostate-a-case-report
#8
Yutaro Hayashi, Takashi Kawahara, Hiromichi Iwashita, Kota Shimokihara, Sohgo Tsutsumi, Daiji Takamoto, Taku Mochizuki, Yusuke Hattori, Jun-Ichi Teranishi, Yasuhide Miyoshi, Yasushi Yumura, Masahiro Yao, Yoshiaki Inayama, Hiroji Uemura
Ductal adenocarcinoma is an unusual variant of adenocarcinoma of the prostate. A 73-year-old male was referred to our hospital for the further examination of an elevated prostate-specific antigen level of 23.4 ng/mL. Radical prostatectomy (RP) was performed based on the diagnosis obtained by a prostate needle biopsy. The RP specimen revealed ductal adenocarcinoma of the prostate with positive capsular penetration. We herein report a rare case of ductal adenocarcinoma of the prostate.
September 2016: Case Reports in Oncology
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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