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https://www.readbyqxmd.com/read/28346805/brachytherapy-for-patients-with-prostate-cancer-american-society-of-clinical-oncology-cancer-care-ontario-joint-guideline-update
#1
Joseph Chin, R Bryan Rumble, Marisa Kollmeier, Elisabeth Heath, Jason Efstathiou, Tanya Dorff, Barry Berman, Andrew Feifer, Arthur Jacques, D Andrew Loblaw
Purpose To jointly update the Cancer Care Ontario guideline on brachytherapy for patients with prostate cancer to account for new evidence. Methods An Update Panel conducted a targeted systematic literature review and identified more recent randomized controlled trials comparing dose-escalated external beam radiation therapy (EBRT) with brachytherapy in men with prostate cancer. Results Five randomized controlled trials provided the evidence for this update. Recommendations For patients with low-risk prostate cancer who require or choose active treatment, low-dose rate brachytherapy (LDR) alone, EBRT alone, and/or radical prostatectomy (RP) should be offered to eligible patients...
March 27, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28345023/enhancement-of-psma-directed-car-adoptive-immunotherapy-by-pd-1-pd-l1-blockade
#2
Inna Serganova, Ekaterina Moroz, Ivan Cohen, Maxim Moroz, Mayuresh Mane, Juan Zurita, Larissa Shenker, Vladimir Ponomarev, Ronald Blasberg
Chimeric antigen receptor (CAR) T cell therapy in hematologic malignancies has shown remarkable responses, but the same level of success has not been observed in solid tumors. A new prostate cancer model (Myc-CaP:PSMA(+)) and a second-generation anti-hPSMA human CAR T cells expressing a Click Beetle Red luciferase reporter) were used to study hPSMA targeting and assess CAR T cell trafficking and persistence by bioluminescence imaging (BLI). We investigated the antitumor efficacy of human CAR T cells targeting human prostate-specific membrane antigen (hPSMA), in the presence and absence of the target antigen; first alone and then combined with a monoclonal antibody targeting the human programmed death receptor 1 (anti-hPD1 mAb)...
March 17, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28344812/novel-concepts-for-risk-stratification-in-prostate-cancer
#3
Keval M Patel, Vincent J Gnanapragasam
Since Partin introduced the analysis of prostate-specific antigen, clinical T-stage and Gleason scores to estimate the risk of progression in men with localised prostate cancer, our understanding of factors that modify this risk has changed drastically. There are now multiple risk stratification tools available, including look-up tables, risk stratification/classification analyses, regression-tree analyses, nomograms and artificial neural networks. Concurrently, descriptions of novel biopsy strategies, imaging modalities and biomarkers are frequently published with the aim of improving risk stratification...
December 2016: Journal of Clinical Urology
https://www.readbyqxmd.com/read/28344810/novel-biomarkers-for-the-detection-of-prostate-cancer
#4
Niels Asger Jakobsen, Freddie Charles Hamdy, Richard John Bryant
Prostate-specific antigen (PSA) is widely used as a biomarker in the detection of prostate cancer and for decision making regarding treatment options, response to therapy, and clinical follow-up. Despite its widespread use, it is well recognised that PSA has suboptimal performance as a screening tool due to poor specificity, resulting in high negative biopsy rates and potential 'over-diagnosis' and 'over-treatment' of clinically insignificant cancers. In particular, PSA does not reliably distinguish either cancer from benign prostatic conditions, or 'clinically significant' from 'indolent cancers', and it is inaccurate in predicting disease burden and response to treatment...
December 2016: Journal of Clinical Urology
https://www.readbyqxmd.com/read/28343840/prostate-cancer-screening
#5
REVIEW
Mary Weinstein Dunn
OBJECTIVE: To review the current state of prostate cancer screening and future directions. DATA SOURCES: Nursing, medical and scientific literature related to prostate cancer screening, and national and international professional recommendations. CONCLUSION: Prostate cancer screening has been a topic of robust discussion for a number of years. Research continues to examine novel options for prostate cancer screening to either replace or compliment the prostate specific antigen test, but require additional validation before they will be widely accepted into clinical practice...
March 23, 2017: Seminars in Oncology Nursing
https://www.readbyqxmd.com/read/28343345/assessment-of-nucleosides-as-putative-tumor-biomarkers-in-prostate-cancer-screening-by-ce-uv
#6
Adriana Zardini Buzatto, Mariana de Oliveira Silva, Ronei Jesus Poppi, Ana Valéria Colnaghi Simionato
Cancer is responsible for millions of deaths worldwide, but most base diseases may be cured if detected early. Screening tests may be used to identify early-stage malignant neoplasms. However, the major screening tool for prostate cancer, the prostate-specific antigen test, has unsuitable sensitivity. Since cancer cells may affect the pattern of consumption and excretion of nucleosides, such biomolecules are putative biomarkers that can be used for diagnosis and treatment evaluation. Using a previously validated method for the analysis of nucleosides in blood serum by capillary electrophoresis with UV-vis spectroscopy detection, we investigated 60 samples from healthy individuals and 42 samples from prostate cancer patients...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28342633/pca3-as-a-second-line-biomarker-in-a-prospective-controlled-randomized-opportunistic-prostate-cancer-screening-programme
#7
J Rubio-Briones, J Casanova, F Martínez, J L Domínguez-Escrig, A Fernández-Serra, R Dumont, M Ramírez-Backhaus, A Gómez-Ferrer, A Collado, L Rubio, A Molina, M Vanaclocha, D Sala, J A Lopez-Guerrero
OBJECTIVES: PCA3 performance as a single second line biomarker is compared to the European Randomised Study of Screening for Prostate Cancer risk calculator model 3 (ERSPC RC-3) in an opportunistic screening in prostate cancer (PCa). MATERIAL AND METHODS: 5,199 men, aged 40-75y, underwent prostate-specific antigen (PSA) screening and digital rectal examination (DRE). Men with a normal DRE and PSA ≥3ng/ml had a PCA3 test done. All men with PCA3 ≥35 underwent an initial biopsy (IBx) -12 cores-...
March 22, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28340728/ferrocene-graphene-sheets-for-high-efficiency-quenching-of-electrochemiluminescence-from-au-nanoparticles-functionalized-cadmium-sulfide-flower-like-three-dimensional-assemblies-and-sensitive-detection-of-prostate-specific-antigen
#8
Jiu-Jun Yang, Jun-Tao Cao, Hui Wang, Yan-Ming Liu, Shu-Wei Ren
A signal-switchable electrochemiluminescence (ECL) aptasensor was presented for sensitive prostate specific antigen (PSA) assay using ferrocene-graphene sheets (Fc-GNs) for high-efficiency quenching of ECL from Au nanoparticles functionalized cadmium sulfide flower-like three dimensional (3D) assemblies (Au-CdS flower-like 3D assemblies). Au-CdS flower-like 3D assemblies were synthesized and employed as luminophore, exhibiting strong and stable ECL intensity, and followed by assembling captured DNA (cDNA) and hybridizing it with half of base sequence of PSA aptamer on the Au-CdS flower-like 3D assemblies modified electrode...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28338640/metal-based-psma-radioligands
#9
REVIEW
Eleni Gourni, Gjermund Henriksen
Prostate cancer is one of the most common malignancies for which great progress has been made in identifying appropriate molecular targets that would enable efficient in vivo targeting for imaging and therapy. The type II integral membrane protein, prostate specific membrane antigen (PSMA) is overexpressed on prostate cancer cells in proportion to the stage and grade of the tumor progression, especially in androgen-independent, advanced and metastatic disease, rendering it a promising diagnostic and/or therapeutic target...
March 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28338305/prostate-cancer-in-renal-transplant-recipients
#10
Benjamin A Sherer, Krishnan Warrior, Karl Godlewski, Martin Hertl, Oyedolamu Olaitan, Ajay Nehra, Leslie Allan Deane
As patients with end-stage renal disease are receiving renal allografts at older ages, the number of male renal transplant recipients (RTRs) being diagnosed with prostate cancer (CaP) is increasing. Historically, the literature regarding the management of CaP in RTR's is limited to case reports and small case series. To date, there are no standardized guidelines for screening or management of CaP in these complex patients. To better understand the unique characteristics of CaP in the renal transplant population, we performed a literature review of PubMed, without date limitations, using a combination of search terms including prostate cancer, end stage renal disease, renal transplantation, prostate cancer screening, prostate specific antigen kinetics, immunosuppression, prostatectomy, and radiation therapy...
March 24, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28337641/inhibition-of-proliferation-of-prostate-cancer-cell-line-du-145-in-vitro-and-in-vivo-using-salvia-miltiorrhiza-bunge
#11
Woong Jin Bae, Jin Bong Choi, Kang Sup Kim, U Syn Ha, Sung Hoo Hong, Ji Youl Lee, Tae-Kon Hwang, Sung Yeoun Hwang, Zhi-Ping Wang, Sae Woong Kim
OBJECTIVE: To investigate the antiproliferative activity of Salvia miltiorrhiza Bunge. (SM) on the castration-resistant prostate cancer (CRPC) cell line DU-145, in vitro and in vivo. METHODS: Prostate cancer cell line (DU-145) and normal prostate cell line (RWPE-1) were treated with SM at different concentrations (3.125, 12.5, 25 and 50 μg/mL) to investigate the antiproliferative effects. DNA laddering analysis was performed to investigate the apoptosis of DU-145 cells...
March 23, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28337464/obesity-age-ethnicity-and-clinical-features-of-prostate-cancer-patients
#12
Victor J Wu, Darren Pang, Wendell W Tang, Xin Zhang, Li Li, Zongbing You
Approximately 36.5% of the U.S. adults (≥ 20 years old) are obese. Obesity has been associated with type 2 diabetes mellitus, cardiovascular disease, stroke, and several types of cancer. The present study included 1788 prostate cancer patients who were treated with radical prostatectomy at the Ochsner Health System, New Orleans, Louisiana, from January, 2001 to March, 2016. The patient's medical records were retrospectively reviewed. Body mass index (BMI), age, ethnicity (Caucasians versus African Americans), clinical stage, Gleason score, and prostate-specific antigen (PSA) levels were retrieved...
2017: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/28337367/a-case-of-advanced-gastric-cancer-with-para-aortic-lymph-node-metastasis-from-co-occurring-prostate-cancer
#13
Miyeong Park, Sang-Ho Jeong, Young-Joon Lee, Ji-Ho Park, Sang-Kyung Choi, Soon-Chan Hong, Eun-Jung Jung, Young-Tae Ju, Chi-Young Jeong, Jeong-Hee Lee, Woo-Song Ha
An 84-year-old man was diagnosed with two synchronous adenocarcinomas, a Borrmann type IV advanced gastric adenocarcinoma in his antrum and a well-differentiated Borrmann type I carcinoma on the anterior wall of the higher body of his stomach. Pre-operatively, computed tomography of the abdomen revealed the presence of advanced gastric cancer with peri-gastric and para-aortic lymph node (LN) metastasis. He planned for palliative total gastrectomy owing to the risk of obstruction by the antral lesion. We performed a frozen biopsy of a para-aortic LN during surgery and found that the origin of the para-aortic LN metastasis was from undiagnosed prostate cancer...
March 2017: Journal of Gastric Cancer
https://www.readbyqxmd.com/read/28336957/next-generation-sequencing-enables-the-discovery-of-more-diverse-positive-clones-from-a-phage-displayed-antibody-library
#14
Wonjun Yang, Aerin Yoon, Sanghoon Lee, Soohyun Kim, Jungwon Han, Junho Chung
Phage display technology provides a powerful tool to screen a library for a binding molecule via an enrichment process. It has been adopted as a critical technology in the development of therapeutic antibodies. However, a major drawback of phage display technology is that because the degree of the enrichment cannot be controlled during the bio-panning process, it frequently results in a limited number of clones. In this study, we applied next-generation sequencing (NGS) to screen clones from a library and determine whether a greater number of clones can be identified using NGS than using conventional methods...
March 24, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28336288/incidental-malignancies-identified-during-staging-for-prostate-cancer-with-68-ga-psma-hbed-cc-pet-imaging
#15
Andre Joshi, Cheryl Nicholson, Handoo Rhee, Sonja Gustafson, Ken Miles, Ian Vela
The rapid uptake of 68Ga Prostate-Specific Membrane Antigen (PSMA) HBED-CC PET imaging for prostate cancer staging has led to concerns regarding its specificity, with uptake in both malignant and non-malignant tissues. We describe three separate malignancies identified on 68Ga PSMA HBED-CC PET imaging. The misnomer of "prostate specific membrane antigen" is demonstrated by this case and highlights the importance of continued investigation of the potential role for 68Ga PSMA HBED-CC PET in other malignancies...
March 20, 2017: Urology
https://www.readbyqxmd.com/read/28335971/ultrasensitive-immunosensor-for-prostate-specific-antigen-using-biomimetic-polydopamine-nanospheres-as-an-electrochemiluminescence-superquencher-and-antibody-carriers
#16
Yuanyuan Liu, Yanhua Zhao, Zongwei Zhu, Zhenyuan Xing, Hongmin Ma, Qin Wei
In this work, biomimetic polydopamine nanospheres (PDANSs) were easily prepared and were firstly exploited as an electrochemiluminescence (ECL) nanoquencher for the development of a sandwich type immunosensor. The PDANSs with abundant active functional groups can facilely label the detection antibody and show remarkable quenching effect towards the ECL of the tris-(2,2'-bipyridine)ruthenium (Ru(bpy)3(2+)). The amino-modified multiwall carbon nanotubes/Nafion (MWCNTs-NH2@N) composite-film was adopted as a matrix to incorporate the luminophor Ru(bpy)3(2+) and immobilize the capture antibody...
April 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28335966/a-concentration-dependent-multicolor-conversion-strategy-for-ultrasensitive-colorimetric-immunoassay-with-the-naked-eye
#17
Yingshuai Liu, Zeying Zhang, Jie Yu, Jin Xie, Chang Ming Li
Colorimetric immunoassays have been attracting more attention for use in practical applications, especially in point-of-care diagnostics. In comparison with a single color immunoassay, the dose-dependent multicolor strategy greatly improves the detection resolution and accuracy of visual inspection. In the current study, a concentration-dependent multicolor conversion strategy was developed based on gold nanoparticle (AuNP)-mediated copper deposition for signal amplification and Prussian blue for color generation...
April 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28334771/efficacy-and-safety-of-a-3-month-dosing-regimen-of-degarelix-in-japanese-patients-with-prostate-cancer-a-phase-ii-maintenance-dose-finding-study
#18
Seiichiro Ozono, Taiji Tsukamoto, Seiji Naito, Yasuo Ohashi, Takeshi Ueda, Tsutomu Nishiyama, Hideki Maeda, Hidehito Kusuoka, Rio Akazawa, Mototsugu Ito, Hideyuki Akaza
Objective: To evaluate the efficacy and safety of degarelix 3-month depot in Japanese patients with prostate cancer. Methods: In this Phase II, open-label, parallel-group study, 155 Japanese prostate cancer patients were randomized to treatment with degarelix administered subcutaneously at a maintenance dose of 360 or 480 mg every 84 days for 12 months, after receiving an initial dose of 240 mg. The primary endpoint was the cumulative probability of serum testosterone ≤0...
February 18, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28333020/-18-f-choline-positron-emission-tomography-computed-tomography-and-multiparametric-magnetic-resonance-imaging-for-the-detection-of-early-local-recurrence-of-prostate-cancer-initially-treated-by-radiation-therapy-comparison-with-systematic-3-dimensional-transperineal
#19
Salim Kanoun, Paul Walker, Jean-Marc Vrigneaud, Edouard Depardon, Vincent Barbier, Olivier Humbert, Morgan Moulin, Gilles Créhange, Luc Cormier, Romaric Loffroy, François Brunotte, Alexandre Cochet
PURPOSE: To compare the diagnostic performance of (18)F-fluorocholine positron emission tomography/computed tomography (FCH-PET/CT), multiparametric prostate magnetic resonance imaging (mpMRI), and a combination of both techniques for the detection of local recurrence of prostate cancer initially treated by radiation therapy. METHODS AND MATERIALS: This was a retrospective, single-institution study of 32 patients with suspected prostate cancer recurrence who underwent both FCH-PET/CT and 3T mpMRI within 3 months of one another for the detection of recurrence...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28333017/effect-of-prostate-magnetic-resonance-imaging-ultrasound-fusion-guided-biopsy-on-radiation-treatment-recommendations
#20
Aaron Reed, Luca F Valle, Uma Shankavaram, Andra Krauze, Aradhana Kaushal, Erica Schott, Theresa Cooley-Zgela, Bradford Wood, Peter Pinto, Peter Choyke, Baris Turkbey, Deborah E Citrin
PURPOSE: Targeted magnetic resonance imaging (MRI)/ultrasound fusion prostate biopsy (MRI-Bx) has recently been compared with the standard of care extended sextant ultrasound-guided prostate biopsy (SOC-Bx), with the former associated with an increased rate of detection of clinically significant prostate cancer. The present study sought to determine the influence of MRI-Bx on radiation therapy and androgen deprivation therapy (ADT) recommendations. METHODS AND MATERIALS: All patients who had received radiation treatment and had undergone SOC-Bx and MRI-Bx at our institution were included...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
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