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https://www.readbyqxmd.com/read/29786851/annual-report-to-the-nation-on-the-status-of-cancer-part-ii-recent-changes-in-prostate-cancer-trends-and-disease-characteristics
#1
Serban Negoita, Eric J Feuer, Angela Mariotto, Kathleen A Cronin, Valentina I Petkov, Sarah K Hussey, Vicki Benard, S Jane Henley, Robert N Anderson, Stacey Fedewa, Recinda L Sherman, Betsy A Kohler, Barbara J Dearmon, Andrew J Lake, Jiemin Ma, Lisa C Richardson, Ahmedin Jemal, Lynne Penberthy
BACKGROUND: Temporal trends in prostate cancer incidence and death rates have been attributed to changing patterns of screening and improved treatment (mortality only), among other factors. This study evaluated contemporary national-level trends and their relations with prostate-specific antigen (PSA) testing prevalence and explored trends in incidence according to disease characteristics with stage-specific, delay-adjusted rates. METHODS: Joinpoint regression was used to examine changes in delay-adjusted prostate cancer incidence rates from population-based US cancer registries from 2000 to 2014 by age categories, race, and disease characteristics, including stage, PSA, Gleason score, and clinical extension...
May 22, 2018: Cancer
https://www.readbyqxmd.com/read/29786491/validation-of-pi-rads-version-2-in-transition-zone-lesions-for-the-detection-of-prostate-cancer
#2
Janice N Thai, Harish A Narayanan, Arvin K George, M Minhaj Siddiqui, Parita Shah, Francesca V Mertan, Maria J Merino, Peter A Pinto, Peter L Choyke, Bradford J Wood, Baris Turkbey
Purpose To determine the association between Prostate Imaging Reporting and Data System (PI-RADS) version 2 scores and prostate cancer (PCa) in a cohort of patients undergoing biopsy of transition zone (TZ) lesions. Materials and Methods A total of 634 TZ lesions in 457 patients were identified from a prospectively maintained database of consecutive patients undergoing prostate magnetic resonance imaging. Prostate lesions were retrospectively categorized with the PI-RADS version 2 system by two readers in consensus who were blinded to histopathologic findings...
May 18, 2018: Radiology
https://www.readbyqxmd.com/read/29786490/gallium-68-psma-11-pet-mr-imaging-in-patients-with-intermediate-or-high-risk-prostate-cancer
#3
Sonya Youngju Park, Claudia Zacharias, Caitlyn Harrison, Richard E Fan, Christian Kunder, Negin Hatami, Frederik Giesel, Pejman Ghanouni, Bruce Daniel, Andreas M Loening, Geoffrey A Sonn, Andrei Iagaru
Purpose To report the results of dual-time-point gallium 68 (68 Ga) prostate-specific membrane antigen (PSMA)-11 positron emission tomography (PET)/magnetic resonance (MR) imaging prior to prostatectomy in patients with intermediate- or high-risk cancer. Materials and Methods Thirty-three men who underwent conventional imaging as clinically indicated and who were scheduled for radical prostatectomy with pelvic lymph node dissection were recruited for this study. A mean dose of 4.1 mCi ± 0.7 (151.7 MBq ± 25...
May 16, 2018: Radiology
https://www.readbyqxmd.com/read/29785140/do-additional-cores-from-cancer-suspicious-lesions-on-transrectal-ultrasound-improve-prostate-cancer-detection-including-index-tumors-over-12-core-systematic-biopsy
#4
Jung Ki Jo, Sung Kyu Hong, Seok-Soo Byun, Sang Eun Lee, Seong Jin Jeong
Objective: The efficacy of additional cores from cancer-suspicious lesions by transrectal ultrasound (TRUS) for the detection of prostate cancer (PCa) was assessed. Materials and methods: Data were collected from 4144 men who underwent systematic 12-core biopsy with no cancer-suspicious lesions (Group A: 3256 cases) or 13- or more-core (systematic 12 core + additional cores) biopsy with cancer-suspicious lesions (Group B: 888 cases) on TRUS-guided biopsy. The effect of additional biopsy cores on the cancer detection rate was investigated...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29778349/a-contemporary-prostate-biopsy-risk-calculator-based-on-multiple-heterogeneous-cohorts
#5
Donna P Ankerst, Johanna Straubinger, Katharina Selig, Lourdes Guerrios, Amanda De Hoedt, Javier Hernandez, Michael A Liss, Robin J Leach, Stephen J Freedland, Michael W Kattan, Robert Nam, Alexander Haese, Francesco Montorsi, Stephen A Boorjian, Matthew R Cooperberg, Cedric Poyet, Emily Vertosick, Andrew J Vickers
BACKGROUND: Prostate cancer prediction tools provide quantitative guidance for doctor-patient decision-making regarding biopsy. The widely used online Prostate Cancer Prevention Trial Risk Calculator (PCPTRC) utilized data from the 1990s based on six-core biopsies and outdated grading systems. OBJECTIVE: We prospectively gathered data from men undergoing prostate biopsy in multiple diverse North American and European institutions participating in the Prostate Biopsy Collaborative Group (PBCG) in order to build a state-of-the-art risk prediction tool...
May 16, 2018: European Urology
https://www.readbyqxmd.com/read/29776408/pre-and-intra-operative-predictors-of-postoperative-hospital-length-of-stay-in-patients-undergoing-radical-prostatectomy-for-prostate-cancer-in-china-a-retrospective-observational-study
#6
Qingmei Huang, Ping Jiang, Lina Feng, Liping Xie, Shuo Wang, Dan Xia, Baihua Shen, Baiye Jin, Li Zheng, Wei Wang
BACKGROUND: Hospital length of stay (LOS) has recently been receiving increasing attention as a marker of medical resource consumption. Identifying predictors of longer LOS can better equip doctors to counsel patients and facilitate more efficient patient flow and utilization of medical resources. The objective of this study was to identify pre- and intra-operative risk factors for postoperative hospital LOS in patients who had undergone radical prostatectomy in China. METHODS: We retrospectively analyzed data of 793 eligible patients with prostate cancer who had undergone radical prostatectomy in our institution between January 2011 and March 2016...
May 18, 2018: BMC Urology
https://www.readbyqxmd.com/read/29775158/microrna-expression-in-tumour-tissue-and-plasma-in-patients-with-newly-diagnosed-metastatic-prostate-cancer
#7
Ahmed Hussein Zedan, Torben Frøstrup Hansen, Jannie Assenholt, Mindaugas Pleckaitis, Jonna Skov Madsen, Palle Jörn Sloth Osther
Prostate cancer is the most common cancer among men in the western world. Clinical practice is continuously challenged by the pitfalls of the available diagnostic tools. microRNAs may represent promising biomarkers in many types of human cancers, including prostate cancer. The aim of this study was to investigate microRNA expression in tumour tissue and matched plasma in a cohort of patients with primary metastatic prostate cancer. The relative expression of 12 microRNAs was assessed in diagnostic needle biopsies from the prostate and matched plasma samples in two prospective cohorts (screening cohorts) comprising 21 patients with metastatic prostate cancer and 25 control patients...
May 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29773955/survival-outcomes-of-radical-prostatectomy-and-external-beam-radiotherapy-in-clinically-localized-high-risk-prostate-cancer-a-population-based-propensity-score-matched-study
#8
Xiaobin Gu, Xianshu Gao, Ming Cui, Mu Xie, Mingwei Ma, Shangbin Qin, Xiaoying Li, Xin Qi, Yun Bai, Dian Wang
Objective: This study was aimed to compare survival outcomes in high-risk prostate cancer (PCa) patients receiving external beam radiotherapy (EBRT) or radical prostatectomy (RP). Materials and methods: The Surveillance, Epidemiology, and End Results (SEER) database was used to identify PCa patients with high-risk features who received RP alone or EBRT alone from 2004 to 2008. Propensity-score matching (PSM) was performed. Kaplan-Meier survival analysis was used to compare cancer-specific survival (CSS) and overall survival (OS)...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29773186/association-between-cadmium-and-androgen-receptor-protein-expression-differs-in-prostate-tumors-of-african-american-and-european-american-men
#9
Christine M Neslund-Dudas, Russell B McBride, Ashoka Kandegedara, Benjamin A Rybicki, Oleksandr N Kryvenko, Dhananjay Chitale, Nilesh Gupta, Sean R Williamson, Craig G Rogers, Carlos Cordon-Cardo, Andrew G Rundle, Albert M Levin, Q Ping Dou, Bharati Mitra
Cadmium is a known carcinogen that has been implicated in prostate cancer, but how it affects prostate carcinogenesis in humans remains unclear. Evidence from basic science suggests that cadmium can bind to the androgen receptor causing endocrine disruption. The androgen receptor is required for normal prostate development and is the key driver of prostate cancer progression. In this study, we examined the association between cadmium content and androgen receptor protein expression in prostate cancer tissue of African American (N = 22) and European American (N = 30) men...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29772102/novel-nomograms-for-castration-resistant-prostate-cancer-and-survival-outcome-in-patients-with-de-novo-bone-metastatic-prostate-cancer
#10
Jinge Zhao, Guangxi Sun, Banghua Liao, Xingming Zhang, Cameron M Armstrong, Xiaoxue Yin, Jiandong Liu, Junru Chen, Yaojing Yang, Peng Zhao, Qidun Tang, Zhenghao Wang, Zhibin Chen, Xiong Li, Qiang Wei, Xiang Li, Ni Chen, Allen C Gao, Pengfei Shen, Hao Zeng
OBJECTIVES: To develop nomograms predicting the incidence of castration resistant prostate cancer (CRPC) and overall survival (OS) for de novo metastatic prostate cancer (mPCa). MATERIALS AND METHODS: Data from 449 de novo mPCa patients were retrospectively analyzed. Patients were randomly divided into the training (n=314, 70%) and validation cohort (n=135, 30%). Predictive factors were selected by Cox-proportional model and further used for building predictive models...
May 17, 2018: BJU International
https://www.readbyqxmd.com/read/29769196/an-in-vivo-screen-identifies-pygo2-as-a-driver-for-metastatic-prostate-cancer
#11
Xin Lu, Xiaolu Pan, Chang-Jiun Wu, Di Zhao, Shan Feng, Yong Zang, Rumi Lee, Sunada Khadka, Samirkumar B Amin, Eun-Jung Jin, Xiaoying Shang, Pingna Deng, Yanting Luo, William R Morgenlander, Jacqueline Weinrich, Xuemin Lu, Shan Jiang, Qing Chang, Nora M Navone, Patricia Troncoso, Ronald A DePinho, Y Alan Wang
Advanced prostate cancer displays conspicuous chromosomal instability and rampant copy number aberrations, yet the identity of functional drivers resident in many amplicons remain elusive. Here, we implemented a functional genomics approach to identify new oncogenes involved in prostate cancer progression. Through integrated analyses of focal amplicons in large prostate cancer genomic and transcriptomic datasets as well as genes upregulated in metastasis, 276 putative oncogenes were enlisted into an in vivo gain-of-function tumorigenesis screen...
May 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29764515/long-term-outcome-of-a-moderately-hypofractionated-intensity-modulated-radiotherapy-approach-using-an-endorectal-balloon-for-patients-with-localized-prostate-cancer
#12
Bin S Teh, Gary D Lewis, Weiyuan Mai, Ramiro Pino, Hiromichi Ishiyama, Edward Brian Butler
BACKGROUND: Technical advances in radiotherapy delivery have simultaneously enabled dose escalation and enhanced bladder and rectal sparing. However, the optimal radiation fractionation regimen for localized prostate cancer is unclear. Laboratory and clinical evidence suggest that hypofractionation may improve the therapeutic ratio of radiotherapy. We report our institutional outcomes using moderately hypofractionated, intensity-modulated radiotherapy (IMRT), and an endorectal balloon, with emphasis on long-term biochemical control and treatment-related adverse events in patients with localized prostate cancer...
April 17, 2018: Cancer communications
https://www.readbyqxmd.com/read/29762048/theranostics-of-prostate-cancer-from-molecular-imaging-to-precision-molecular-radiotherapy-targeting-the-prostate-specific-membrane-antigen
#13
Harshad R Kulkarni, Aviral Singh, Thomas Langbein, Christiane Schuchardt, Dirk Mueller, Jingjing Zhang, Coline Lehmann, Richard P Baum
Alterations at the molecular level are a hallmark of cancer. Prostate cancer is associated with the overexpression of prostate specific membrane antigen (PSMA) in a majority of cases, predominantly in advanced tumors, increasing with the grade or Gleason's score. PSMA can be selectively targeted using radiolabelled PSMA ligands. These small molecules binding the PSMA can be radiolabelled with gamma-emitters like 99m Tc and 111 In or positron emitters like 68 Ga and 18 F for diagnosis as well as with their theranostic pairs such as 177 Lu (beta-emitter) or 225 Ac (alpha-emitter) for therapy...
May 15, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29761841/prkar2b-promotes-prostate-cancer-metastasis-by-activating-wnt-%C3%AE-catenin-and-inducing-epithelial-mesenchymal-transition
#14
Jianjun Sha, Qing Han, Chenfei Chi, Yinjie Zhu, Jiahua Pan, Baijun Dong, Yiran Huang, Weiliang Xia, Wei Xue
Castration-resistant prostate cancers (CRPC) that occur after the failure of androgen-blocking therapies cause most of the deaths in prostate cancer (PCa) patients. In a previous study we identified that PRKAR2B expression is upregulated in CRPC and possesses potentials to develop CRPC. Here we further investigated the underlying mechanism of PRKAR2B in regulating prostate cancer metastasis. We established an androgen-independent LNCaPcell line (LNCaP-AI), and investigated the function of PRKAR2B on regulating cell invasion in vitro and in vivo...
May 15, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29761525/ets2-is-a-prostate-basal-cell-marker-and-is-highly-expressed-in-prostate-cancers-aberrantly-expressing-p63
#15
Alba Torres, Mohammed Alshalalfa, Elai Davicioni, Anuj Gupta, Srinivasan Yegnasubramanian, Sarah J Wheelan, Jonathan I Epstein, Angelo M De Marzo, Tamara L Lotan
BACKGROUND: Rare prostate carcinomas aberrantly express p63 and have an immunophenotype intermediate between basal and luminal cells. Here, we performed gene expression profiling on p63-expressing prostatic carcinomas and compared them to usual-type adenocarcinoma. We identify ETS2 as highly expressed in p63-expressing prostatic carcinomas and benign prostate basal cells, with lower expression in luminal cells and primary usual-type adenocarcinomas. METHODS: A total of 8 p63-expressing prostate carcinomas at radical prostatectomy were compared to 358 usual-type adenocarcinomas by gene expression profiling performed on formalin fixed paraffin embedded tumor tissue using Affymetrix 1...
May 15, 2018: Prostate
https://www.readbyqxmd.com/read/29760417/ndrg3-lowers-the-metastatic-potential-in-prostate-cancer-as-a-feedback-controller-of-hypoxia-inducible-factors
#16
Ga Young Lee, Seung-Hyun Shin, Hyun-Woo Shin, Yang-Sook Chun, Jong-Wan Park
Expression of hypoxia-inducible factors (HIFs) and N-myc downstream-regulated gene 3 (NDRG3) are oxygen-dependently regulated by prolyl hydroxylase domain (PHD) enzymes. Little is known about the role of NDRG3 in the cellular adaptation to hypoxia, whereas the roles of HIFs are well understood. In this study, we investigated how NDRG3 affects the hypoxic response in prostate cancer cells. Compared with HIF-1α, hypoxic induction of NDRG3 was observed at a later phase. NDRG3 reduced hypoxic expression of HIF-1α by inhibiting AKT-driven translation of HIF1A mRNA...
May 14, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29758220/evaluation-of-an-aggressive-prostate-biopsy-strategy-in-men-younger-than-50-years-of-age
#17
Hanan Goldberg, Zachary Klaassen, Thenappan Chandrasekar, Christopher J D Wallis, Ants Toi, Rashid Sayyid, Bimal Bhindi, Michael Nesbitt, Andrew Evans, Theo van der Kwast, Joan Sweet, Nathan Perlis, Robert J Hamilton, Girish S Kulkarni, Antonio Finelli, Alexandre Zlotta, Neil Fleshner
INTRODUCTION: Longitudinal cohort studies and guidelines demonstrate that PSA ≥1 ng/mL in younger patients confer an increased risk of delayed prostate cancer (PC) death. In our institution we have used an aggressive biopsy strategy among younger patients with PSA of>1 ng/ml. Our objective was to determine the proportion of detected cancer and specifically, clinical significant cancer, with this strategy. METHODS: The prostate biopsy (PB) database at Princess Margaret Cancer Centre was queried for patients younger than 50 who underwent a first PB between 2000 and 2016...
May 11, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29756298/primary-whole-gland-ablation-for-localized-prostate-cancer-with-high-intensity-focused-ultrasound-the-important-predictors-of-biochemical-recurrence
#18
Po Yen Chen, Po Hui Chiang, Yi Yang Liu, Yao Chi Chuang, Yuan Tso Cheng
OBJECTIVES: To identify predictive factors of biochemical recurrence for patients undergoing high-intensity focused ultrasound treatment for localized prostate cancer. METHODS: We retrospectively identified patients receiving whole-gland prostate ablation with high-intensity focused ultrasound for localized prostate cancer from 2009 to 2015. All the patients received pre-high-intensity focused ultrasound radical transurethral resection of the prostate. We included perioperative parameters as follows: age, preoperative prostate volume, stage of operation, initial prostate-specific antigen, T stage, postoperative prostate-specific antigen nadir, Gleason score, time to prostate-specific antigen nadir and the presence of prostate-specific antigen biochemical recurrence...
May 13, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29755715/a-deep-belief-network-and-dempster-shafer-based-multiclassifier-for-the-pathology-stage-of-prostate-cancer
#19
Jae Kwon Kim, Mun Joo Choi, Jong Sik Lee, Jun Hyuk Hong, Choung-Soo Kim, Seong Il Seo, Chang Wook Jeong, Seok-Soo Byun, Kyo Chul Koo, Byung Ha Chung, Yong Hyun Park, Ji Youl Lee, In Young Choi
Object: Pathologic prediction of prostate cancer can be made by predicting the patient's prostate metastasis prior to surgery based on biopsy information. Because biopsy variables associated with pathology have uncertainty regarding individual patient differences, a method for classification according to these variables is needed. Method: We propose a deep belief network and Dempster-Shafer- (DBN-DS-) based multiclassifier for the pathologic prediction of prostate cancer...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29755671/should-reporting-of-peri-neural-invasion-and-extra-prostatic-extension-be-mandatory-in-prostate-cancer-biopsies-correlation-with-outcome-in-biopsy-cases-treated-conservatively
#20
Amar S Ahmad, Vishnu Parameshwaran, Luis Beltran, Gabrielle Fisher, Bernard V North, David Greenberg, Geraldine Soosay, Henrik Møller, Peter Scardino, Jack Cuzick, Daniel M Berney
The identification of perineural invasion (PNI) and extraprostatic extension (ECE) in prostate cancer (PC) biopsies is time consuming and can be difficult. Although this is required information in many datasets, there is little evidence on their effect on outcome in patients treated conservatively. Cases of PC were identified from three cancer registries in the UK from men with clinically localized prostate cancer diagnosed by needle biopsy from 1990-2003. The endpoint was prostate cancer death (DOD). Patients treated radically within 6 months, those with objective evidence of metastases or who had prior hormone therapy were excluded...
April 17, 2018: Oncotarget
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