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https://www.readbyqxmd.com/read/28651247/a-prospective-comparison-of-selective-multiparametric-magnetic-resonance-imaging-fusion-targeted-and-systematic-transrectal-ultrasound-guided-biopsies-for-detecting-prostate-cancer-in-men-undergoing-repeated-biopsies
#1
Lars Boesen, Nis Nørgaard, Vibeke Løgager, Ingegerd Balslev, Henrik S Thomsen
INTRODUCTION: The aim of the study was to compare the prostate cancer (PCa) detection rate of systematic transrectal ultrasound-guided biopsies (TRUS-bx) and multiparametric-MRI targeted biopsies (mp-MRI-bx) in a repeat biopsy setting and evaluate the clinical significance following an "MRI-targeted-only" approach. MATERIALS AND METHODS: Patients with prior negative biopsies underwent prostatic multiparametric-MRI that was scored using the Prostate Imaging Reporting and Data System (PI-RADS) classification...
June 27, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28651174/label-free-chronopotentiometric-glycoprofiling-of-prostate-specific-antigen-using-sialic-acid-recognizing-lectins
#2
Stefan Belicky, Hana Černocká, Tomas Bertok, Alena Holazova, Kamila Réblová, Emil Paleček, Jan Tkac, Veronika Ostatná
In recent decades, it has become clear that most of human proteins are glycosylated and that protein glycosylation plays an important role in health and diseases. At present, simple, fast and inexpensive methods are sought for clinical applications and particularly for improved diagnostics of various diseases, including cancer. We propose a label- and reagent-free electrochemical method based on chronopotentiometric stripping (CPS) analysis and a hanging mercury drop electrode for the detection of interaction of sialylated protein biomarker a prostate specific antigen (PSA) with two important lectins: Sambucus nigra agglutinin (SNA) and Maackia amurensis agglutinin (MAA)...
June 19, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/28651114/isolation-and-functional-interrogation-of-adult-human-prostate-epithelial-stem-cells-at-single-cell-resolution
#3
Wen-Yang Hu, Dan-Ping Hu, Lishi Xie, Ye Li, Shyama Majumdar, Larisa Nonn, Hong Hu, Toshi Shioda, Gail S Prins
Using primary cultures of normal human prostate epithelial cells, we developed a novel prostasphere-based, label-retention assay that permits identification and isolation of stem cells at a single cell level. Their bona fide stem cell nature was corroborated using in vitro and in vivo regenerative assays and documentation of symmetric/asymmetric division. Robust WNT10B and KRT13 levels without E-cadherin or KRT14 staining distinguished individual stem cells from daughter progenitors in spheroids. Following FACS to isolate label-retaining stem cells from label-free progenitors, RNA-seq identified unique gene signatures for the separate populations which may serve as useful biomarkers...
June 16, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28651025/invasive-cx43-high-sub-line-of-human-prostate-du145-cells-displays-increased-nanomechanical-deformability
#4
Katarzyna Piwowarczyk, Michał Sarna, Damian Ryszawy, Jarosław Czyż
Connexin(Cx)43(high) cells are preferentially recruited to the invasive front of prostate cancer in vitro and in vivo. To address the involvement of Cx43 in the regulation of human prostate cancer DU145 cell invasiveness, we have analysed the nanoelasticity of invasive Cx43(high) sub-sets of DU145 cells by atomic force microscopy (AFM). The Cx43(high) DU145 cells displayed considerably higher susceptibility to mechanical distortions than the wild type DU145 cells. Transient Cx43 silencing had no effect on their elastic properties...
June 24, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28651018/meta-analysis-of-mirna-expression-profiles-for-prostate-cancer-recurrence-following-radical-prostatectomy
#5
Elnaz Pashaei, Elham Pashaei, Maryam Ahmady, Mustafa Ozen, Nizamettin Aydin
BACKGROUND: Prostate cancer (PCa) is a leading reason of death in men and the most diagnosed malignancies in the western countries at the present time. After radical prostatectomy (RP), nearly 30% of men develop clinical recurrence with high serum prostate-specific antigen levels. An important challenge in PCa research is to identify effective predictors of tumor recurrence. The molecular alterations in microRNAs are associated with PCa initiation and progression. Several miRNA microarray studies have been conducted in recurrence PCa, but the results vary among different studies...
2017: PloS One
https://www.readbyqxmd.com/read/28650863/prediction-models-for-prostate-cancer-outcomes-what-is-the-state-of-the-art-in-2017
#6
James T Kearns, Daniel W Lin
PURPOSE OF REVIEW: Prostate cancer (PCa) remains a significant public health burden, with multiple points for decision-making at all stages of the disease. Given the amount and variety of data that may influence disease management, prediction models have been published to assist clinicians and patients in making decisions about the best next course of action at many disease states. We sought to review the most important studies related to PCa prediction models since 2016 and evaluate their impact upon the evolving field of risk modeling in PCa...
June 24, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28649893/radium-223-dichloride-for-the-treatment-of-castration-resistant-prostate-cancer-with-symptomatic-bone-metastases
#7
Nicholas J Vogelzang
Castration-resistant prostate cancer (CRPC) is associated with the development of bone metastases, increased mortality, and a reduction in the patient's quality of life (QOL). The management of metastatic CRPC (mCRPC) has rapidly evolved over the past decade, with a number of available therapeutic agents improving overall survival. Radium-223 dichloride (radium-223), the first targeted alpha therapy, improves survival accompanied by QOL benefits with a favorable safety profile. It is approved in over 40 countries for the treatment of patients with CRPC with symptomatic bone metastases and no known visceral metastatic disease...
June 26, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28649763/transformations-of-some-sesquiterpene-lactones-by-filamentous-fungi-cytotoxic-evaluations
#8
Arturo Cano-Flores, Guillermo Delgado
Biotransformation is an economically and ecologically viable technology which has been used to modify the structures of many classes of biologically active products. Some fungi may be useful for the biotransformation of sesquiterpene lactones (SLs), leading to unusual structural changes that modify their biological activities, and other transformations mimic their biosynthetic pathways, generating evidences for the proposed biogenesis. Eight filamentous fungi were screened for their ability to transform different SLs (1-9), and microbial reactions yielded compounds 11 -- 18, which in turn have been isolated as natural products, thus mimicking their biosynthesis...
June 26, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28649735/diagnostic-sensitivity-of-tc-99m-hynic-psma-spect-ct-in-prostate-carcinoma-a-comparative-analysis-with-ga-68-psma-pet-ct
#9
Ismaheel O Lawal, Alfred O Ankrah, Neo P Mokgoro, Mariza Vorster, Alex Maes, Mike M Sathekge
BACKGROUND: Emerging data from published studies are demonstrating the superiority of Ga-68 PSMA PET/CT imaging in prostate cancer. However, the low yield of the Ge-68/Ga-68 from which Gallium-68 is obtained and fewer installed PET/CT systems compared to the SPECT imaging systems may limit its availability. We, therefore, evaluated in a head-to-head comparison, the diagnostic sensitivity of Ga-68 PSMA PET/CT and Tc-99m PSMA SPECT/CT in patients with prostate cancer. METHODS: A total of 14 patients with histologically confirmed prostate cancer were prospectively recruited to undergo Ga-68 PSMA PET/CT and Tc-99m HYNIC PSMA SPECT/CT...
June 26, 2017: Prostate
https://www.readbyqxmd.com/read/28649722/comparison-of-dvh-based-plan-verification-methods-for-vmat-arccheck-3dvh-system-and-dynalog-based-dose-reconstruction
#10
Masahide Saito, Noriyuki Kadoya, Kiyokazu Sato, Kengo Ito, Suguru Dobashi, Ken Takeda, Hiroshi Onishi, Keiichi Jingu
The purpose of this study was comparing dose-volume histogram (DVH)-based plan verification methods for volumetric modulated arc therapy (VMAT) pretreatment QA. We evaluated two 3D dose reconstruction systems: ArcCHECK-3DVH system (Sun Nuclear corp.) and Varian dynalog-based dose reconstruction (DBDR) system, developed in-house. Fifteen prostate cancer patients (67.6 Gy/26 Fr), four head and neck cancer patient (66 Gy/33 Fr), and four esophagus cancer patients (60 Gy/30 Fr) treated with VMAT were studied...
June 26, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28649702/dose-considerations-for-anti-cancer-drugs-in-metastatic-prostate-cancer
#11
REVIEW
Megan Crumbaker, Howard Gurney
Despite a growing number of treatment options, metastatic castrate resistant prostate cancer remains almost universally fatal. Dose individualization ensures patients receive the maximal benefit from each line of treatment potentially leading to improved outcomes, a reduction in quality of life impairment and minimization of premature cessation for avoidable toxicity. Herein, we review drug-specific issues that may be associated with unexpected or unrecognized variations in drug systemic exposure despite the use of protocol doses...
June 26, 2017: Prostate
https://www.readbyqxmd.com/read/28649697/bioorthogonal-labeling-of-human-prostate-cancer-tissue-slice-cultures-for-glycoproteomics
#12
David R Spiciarich, Rosalie Nolley, Sophia L Maund, Sean C Purcell, Jason Herschel, Anthony T Iavarone, Donna M Peehl, Carolyn R Bertozzi
Sialylated glycans are found at elevated levels in many types of cancer and have been implicated in disease progression. However, the specific glycoproteins that contribute to the cancer cell-surface sialylation are not well characterized, specifically in bona fide human disease tissue. Metabolic and bioorthogonal labeling methods have previously enabled the enrichment and identification of sialoglycoproteins from cultured cells and model organisms. Herein, we report the first application of this glycoproteomic platform to human tissues cultured ex vivo...
June 26, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28649692/urgent-need-to-strengthen-and-expand-screening-and-other-cancer-control-programs-in-the-caricom-caribbean
#13
Renee A Franklin, Donald T Simeon
PURPOSE: With high mortality in breast, cervical, prostate, and colorectal cancers in Caribbean Community (CARICOM) countries, we examined cancer control initiatives including screening as well as the implementation of relevant international and regional mandates. METHODS: Secondary data were used to examine cancer control initiatives, which included the presence of national policies, programs, and screening services as well as the implementation of international and regional mandates...
June 26, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28649482/the-impact-of-tobacco-use-on-outcomes-and-toxicity-in-a-predominantly-minority-population-of-males-with-prostate-cancer-receiving-external-beam-radiation
#14
Anna Lee, Meng S Shao, David Schwartz, Joseph Safdieh, Virginia W Osborn, David Schreiber
INTRODUCTION: To investigate whether current or prior smoking history had any impact on prostate cancer outcomes and toxicity in our predominantly minority population of males receiving dose-escalated external beam radiation therapy (EBRT). METHODS: Of the 500 patients treated with EBRT between 2003-2011, 444 had smoking histories recorded. Patients were classified as current smoker, former smoker, or never smoker. Biochemical failure-free survival (BFFS) and distant metastatic-free survival (DMFS) endpoints were analyzed...
May 18, 2017: Curēus
https://www.readbyqxmd.com/read/28648953/synthesis-of-thiazole-linked-indolyl-3-glyoxylamide-derivatives-as-tubulin-polymerization-inhibitors
#15
Sravanthi Devi Guggilapu, Lalita Guntuku, T Srinivasa Reddy, Atulya Nagarsenkar, Dilep Kumar Sigalapalli, V G M Naidu, Suresh K Bhargava, Nagendra Babu Bathini
A series of thiazole linked indolyl-3-glyoxylamide derivatives were synthesized and evaluated for their in vitro cytotoxic activity against DU145 (prostate), PC-3 (prostate), A549 (lung) and HCT-15 (colon) cancer cell lines by employing the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Among all the synthesized compounds, compound 13d displayed cytotoxicity of IC50 = 93 nM towards DU145 cancer cell line. The most active compound 13d was also tested on RWPE-1 cells and was found to be safe compared to the DU145 cells...
June 15, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28648818/evaluation-of-the-preimplantation-worksheet-in-determining-calypso-eligibility-for-men-prescribed-postprostatectomy-radiotherapy-with-electromagnetic-transponder-guidance
#16
Daniel George Hamilton, Kingsley Jones, Kevin So
This study aimed to assess the design and performance of the preimplant suitability worksheet in determining Calypso eligibility for prostate cancer patients prescribed postprostatectomy radiotherapy with electromagnetic transponder guidance. The medical records and radiotherapy planning datasets of 75 patients prospectively recruited between June 2015 and September 2016 to a Phase 2 trial evaluating electromagnetic transponder-guided postprostatectomy radiotherapy were retrospectively examined. Correlation and differences between computed tomography (CT)-defined greater trochanter and prostatic fossa landmarks were evaluated...
June 22, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28648600/anticancer-antibacterial-and-pollutant-degradation-potential-of-silver-nanoparticles-from-hyphaene-thebaica
#17
Bello Aminu Bello, Shahid Ali Khan, Jalaluddin Awllia Khan, Fareeduddin Quadri Syed, Muqtadir Baig Mirza, Luqman Shah, Sher Bahadar Khan
We present here the biosynthesis of AgNps from the aqueous extract of H. thebaica fruit, and monitored through UV-Vis spectrophotometer. The functional group were characterized through ATR-FTIR spectroscopy, the particle size, morphologies and elemental composition of the nanoparticles were investigated by using TEM, FESEM and EDS. The anti-proliferation activity of the synthesized AgNps was carried out using MTT assay on human prostate (PC3), breast (MCF7) and liver (HepG2) cancer cell lines. The anti-proliferation assay showed that, the AgNps were able to inhibit the proliferation of the cancer cell lines in a dose depending manner...
June 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28648486/focal-brachytherapy-for-localized-prostate-cancer-urinary-toxicity-depends-on-tumor-location
#18
Victor Srougi, Eric Barret, Igor Nunes-Silva, Mohammed Baghdadi, Silvia Garcia-Barreras, Noelle Pierrat, Francois Rozet, Marc Galiano, Rafael Sanchez-Salas, Xavier Cathelineau, Jean-Marc Cosset
PURPOSE: To evaluate whether patients with prostate cancer have worse functional urinary recovery with focal brachytherapy (FBT) at the base versus the apex of the prostate. METHODS AND MATERIALS: The functional outcomes of patients treated with FBT at the base of the prostate were compared with those of patients treated with FBT at the apex. Urinary symptoms, continence, and erectile dysfunction were measured using the International Prostate Symptom Score (IPSS), International Continence Score (ICS), and International Index of Erectile Function (IIEF-5) questionnaires, respectively, at baseline and at 6, 12, and 24 months after treatment...
June 22, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28648414/prognostic-role-of-ki-67-score-in-localized-prostate-cancer-a-systematic-review-and-meta-analysis
#19
REVIEW
Alejandro Berlin, Julio F Castro-Mesta, Laura Rodriguez-Romo, David Hernandez-Barajas, Juan F González-Guerrero, Iván A Rodríguez-Fernández, Galileo González-Conchas, Adrian Verdines-Perez, Francisco E Vera-Badillo
BACKGROUND: Ki-67 for quantifying tumor proliferation is widely used. In localized prostate cancer (PCa), despite a suggested predictive role of Ki-67 for outcomes after therapies, it has not been incorporated into clinical practice. Herein, we conduct a systematic review and meta-analysis of the literature reporting the association of Ki-67 and disease outcomes in PCa treated radically. METHODS: Medline and EMBASE databases were searched without date or language restrictions, using "KI67" and "prostate cancer" MeSH terms...
June 22, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28648413/neurovascular-bundle-size-measured-on-3-0-t-magnetic-resonance-imaging-is-associated-with-the-recovery-of-erectile-function-after-robot-assisted-radical-prostatectomy
#20
Taekmin Kwon, Chanwoo Lee, Jaeyoon Jung, Choung-Soo Kim
BACKGROUND AND OBJECTIVE: Erectile dysfunction is one of the complications occurring after radical prostatectomy (RP), and recovery of erectile function is quantitatively related to the preservation of the neurovascular bundles (NVB).We evaluated the significance of NVB area on functional outcomes after RP. MATERIALS AND METHODS: Preoperative magnetic resonance imaging was performed on 141 patients who underwent bilateral, nerve-sparing, robot-assisted RP for clinically localized prostate cancer (clinically T2N0M0 on magnetic resonance imaging) and were evaluated at least 12 months after surgery...
June 22, 2017: Urologic Oncology
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