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Post metastasis prostate cancer

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https://www.readbyqxmd.com/read/29301501/inhibition-of-neddylation-facilitates-cell-migration-through-enhanced-phosphorylation-of-caveolin-1-in-pc3-and-u373mg-cells
#1
Sung Yeon Park, Jong-Wan Park, Gun-Woo Lee, Lan Li, Yang-Sook Chun
BACKGROUND: Protein neddylation is a post-translational modification by a covalent conjugation with the neural precursor cell expressed, developmentally downregulated 8 (NEDD8). Although this process has been reported to participate in diverse cellular signaling, little is known about its role in cancer cell migration. Given a recent proteomics report showing that NEDD8 is downregulated in prostate cancer tissues versus normal prostate tissues, we tested the possibility that neddylation plays a role in cancer evolution, and then tried to identify target proteins of the neddylation...
January 5, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29288003/tertiary-gleason-pattern-in-radical-prostatectomy-specimens-is-associated-with-worse-outcomes-than-the-next-higher-gleason-score-group-in-localized-prostate-cancer
#2
Mehmet Özsoy, David D'Andrea, Marco Moschini, Beat Foerster, Mohammad Abufaraj, Romain Mathieu, Alberto Briganti, Pierre I Karakiewicz, Morgan Roupret, Christian Seitz, Anna Katarzyna Czech, Martin Susani, Shahrokh F Shariat
AIM: To assess the predictive value of TGP on biochemical recurrence (BCR) and its association with clinicopathological outcomes in a large, multicenter cohort of patients with localized prostate cancer (PCa) treated with radical prostatectomy (RP). MATERIALS AND METHODS: Records of 6,041 patients who were treated with RP between 2000 and 2011 for clinically nonmetastatic PCa were, retrospectively, analyzed from prospectively collected datasets. BCR-free survival rates were assessed using univariable and multivariable cox-regression analyses...
December 26, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29284672/hospice-admission-and-survival-following-18f-fluoride-pet-performed-for-evaluation-of-osseous-metastatic-disease-in-the-national-oncologic-pet-registry
#3
Ilana F Gareen, Bruce E Hillner, Lucy Hanna, Rajesh Makineni, Fenghai Duan, Anthony F Shields, Rathan M Subramaniam, Barry Siegel
We have previously reported that positron emission tomography using 18F-fluoride (NaF-PET) for assessment of osseous metastatic disease was associated with substantial changes in intended management in Medicare beneficiaries participating in the National Oncologic PET Registry (NOPR). Here, we use Medicare administrative data to examine the association between NaF-PET results and hospice claims within 180 days and 1-year survival. Methods: We classified NOPR NaF-PET results linked to Medicare claims by imaging indication [initial staging (IS); detection of suspected first osseous metastasis (FOM); suspected progression of osseous metastasis (POM); or treatment monitoring (TM)] and type of cancer (prostate, lung, breast or other)...
December 28, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29233664/performance-of-a-prostate-cancer-genomic-classifier-in-predicting-metastasis-in-men-with-prostate-specific-antigen-persistence-postprostatectomy
#4
Daniel E Spratt, Darlene L Y Dai, Robert B Den, Patricia Troncoso, Kasra Yousefi, Ashley E Ross, Edward M Schaeffer, Zaid Haddad, Elai Davicioni, Rohit Mehra, Todd M Morgan, Walter Rayford, Firas Abdollah, Edouard Trabulsi, Mary Achim, Elsa Li Ning Tapia, Mireya Guerrero, Robert Jeffrey Karnes, Adam P Dicker, Mark A Hurwitz, Paul L Nguyen, Felix F Y Feng, Stephen J Freedland, John W Davis
BACKGROUND: Prostate cancer patients who have a detectable prostate-specific antigen (PSA) postprostatectomy may harbor pre-existing metastatic disease. To our knowledge, none of the commercially available genomic biomarkers have been investigated in such men. OBJECTIVE: To evaluate if a 22-gene genomic classifier can independently predict development of metastasis in men with PSA persistence postoperatively. DESIGN, SETTING, AND PARTICIPANTS: A multi-institutional study of 477 men who underwent radical prostatectomy (RP) between 1990 and 2015 from three academic centers...
December 9, 2017: European Urology
https://www.readbyqxmd.com/read/29223469/oncological-and-functional-outcomes-of-elderly-men-treated-with-hifu-vs-minimally-invasive-radical-prostatectomy-a-propensity-score-analysis
#5
Paolo Capogrosso, Eric Barret, Rafael Sanchez-Salas, Igor Nunes-Silva, François Rozet, Marc Galiano, Eugenio Ventimiglia, Alberto Briganti, Andrea Salonia, Francesco Montorsi, Xavier Cathelineau
AIM: To assess outcomes of whole gland high-intensity focused ultrasound (HIFU) as compared with minimally-invasive radical prostatectomy (MIRP) in elderly patients. MATERIALS & METHODS: Patients aged ≥70 years with, cT1-cT2 disease, biopsy Gleason score (GS) 3 + 3 or 3 + 4 and preoperative PSA ≤10 ng/mL were submitted to either whole-gland HIFU or MIRP. Propensity-score matching analysis was performed to ensure the baseline equivalence of groups. Follow-up visits were routinely performed assessing PSA and urinary function according to the International Continence Score (ICS) and the International Prostatic Symptoms Score (IPSS) questionnaires...
December 1, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29212233/lncrna-xist-acts-as-a-tumor-suppressor-in-prostate-cancer-through-sponging-mir-23a-to-modulate-rkip-expression
#6
Yang Du, Xiao-Dong Weng, Lei Wang, Xiu-Heng Liu, Heng-Cheng Zhu, Jia Guo, Jin-Zhuo Ning, Cheng-Cheng Xiao
Accumulating evidences have indicated that aberrant expression of long non-coding RNAs (LncRNAs) is tightly associated with cancer development. Previous studies have reported that lncRNA XIST regulates tumor malignancies in several cancers. However, the underlying mechanism of XIST in prostate cancer remains unclear. In the current study, we found that XIST was down-regulated in prostate cancer specimens and cell lines. Low expression of XIST was correlated with poor prognosis and advanced tumor stage in prostate cancer patients...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29191854/intended-vs-inferred-treatment-after-18f-fluoride-pet-performed-for-evaluation-of-osseous-metastatic-disease-in-the-national-oncologic-pet-registry
#7
Bruce E Hillner, Lucy Hanna, Rajesh Makineni, Fenghai Duan, Anthony F Shields, Rathan M Subramaniam, Ilana Gareen, Barry A Siegel
We have previously reported that PET with 18F-fluoride (NaF-PET) for assessment of osseous metastatic disease led to changes in intended management in a substantial fraction of patients with prostate or other types of cancer participating in the National Oncologic PET Registry (NOPR). This study was performed to assess the concordance of intended patient management after NaF-PET and inferred management based on analysis of Medicare claims. Methods: We analyzed linked post-PET data of consenting NOPR participants age > 65 years from 2011 to 2014 and their corresponding Medicare claims...
November 30, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29181434/androgen-receptor-ar-cistrome-in-prostate-differentiation-and-cancer-progression
#8
Fengtian Wang, Hari K Koul
Despite the progress in development of better AR-targeted therapies for prostate cancer (PCa), there is no curative therapy for castration-resistant prostate cancer (CRPC). Therapeutic resistance in PCa can be characterized in two broad categories of AR therapy resistance: the first and most prevalent one involves restoration of AR activity despite AR targeted therapy, and the second one involves tumor progression despite blockade of AR activity. As such AR remains the most attractive drug target for CRPC. Despite its oncogenic role, AR signaling also contributes to the maturation and differentiation of prostate luminal cells during development...
2017: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/29123014/positron-emission-tomography-using-a-grpr-antagonist-68ga-rm26-in-healthy-volunteers-and-prostate-cancer-patients
#9
Jingjing Zhang, Gang Niu, Xingrong Fan, Lixin Lang, Guozhu Hou, Libo Chen, Huanwen Wu, Zhaohui Zhu, Fang Li, Xiaoyuan Chen
This study was designed to study the safety, biodistribution, radiation dosimetry of a gastrin-releasing peptide receptor (GRPR) antagonist positron emission tomography (PET) tracer 68Ga-RM26, to assess its clinical diagnostic value in prostate cancer patients, and to perform a direct comparison between GRPR antagonist 68Ga-RM26 and agonist 68Ga-BBN. Methods: Five healthy volunteers were enrolled to validate the safety of 68Ga-RM26 and calculate dosimetry. A total of 28 patients with prostate cancer (17 newly diagnosed and 11 post therapy) were recruited with written informed consent...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29116393/reconsidering-the-role-of-pelvic-lymph-node-dissection-with-radical-prostatectomy-for-prostate-cancer-in-an-era-of-improving-radiological-staging-techniques
#10
J W Yaxley, J Dagher, B Delahunt, L Egevad, J Srigley, H Samaratunga
BACKGROUND: Performing an extended pelvic lymph node dissection (PLND) on all men with intermediate- and high-risk prostate cancer at the time of a radical prostatectomy (RP) remains controversial. The majority of patients PLND histology is benign, and the long-term cancer-free progression in men with positive lymph node metastasis is low. The objective is to investigate the probability of long-term biochemical freedom from recurrent disease (bNED) in men with lymph node metastasis identified at the time of radical prostatectomy (RP)...
January 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29063620/predictive-value-of-epithelial-mesenchymal-transition-emt-signature-and-parp-1-in-prostate-cancer-radioresistance
#11
Timothy W Stark, Patrick J Hensley, Amanda Spear, Hong Pu, Stephen S Strup, Natasha Kyprianou
INTRODUCTION: Epithelial-mesenchymal-transition (EMT) has been previously identified as a contributor to prostate cancer progression to metastasis and therapeutic resistance to antiandrogens and radiotherapy. In this study we conducted a retrospective analysis to investigate the significance of radiation-induced EMT and consequential changes to the tumor microenvironment in biochemical recurrence and response to radiotherapy in prostate cancer patients. METHODS: Expression profiling and localization for EMT effectors, E-Cadherin, N-Cadherin, β-catenin and Vimentin was assessed in human prostate tumor specimens pre- and post-radiotherapy and correlated with biochemical recurrence...
December 2017: Prostate
https://www.readbyqxmd.com/read/29039785/prospective-comparison-of-f-18-choline-pet-ct-scan-versus-axial-mri-for-detecting-bone-metastasis-in-biochemically-relapsed-prostate-cancer-patients
#12
Wouter Huysse, Frédéric Lecouvet, Paolo Castellucci, Piet Ost, Valerie Lambrecht, Carlos Artigas, Marie-Laurence Denis, Kathia De Man, Louke Delrue, Lennart Jans, Aurélie De Bruycker, Filip De Vos, Gert De Meerleer, Karel Decaestecker, Valerie Fonteyne, Bieke Lambert
We compared fluor-18 choline positron emission tomography/computed tomography (PET/CT) and axial skeleton magnetic resonance imaging (MRI) prospectively obtained for the detection of bone metastases in non-castrated patients with biochemically recurrent prostate cancer following primary treatment. PET/CT was performed 45 min post-injection of 3-4 MBq/kg F-18 methyl choline. MRI included T1- and fluid sensitive T2-weighted images of the spine and pelvis. Readers were initially blinded from other results and all scans underwent independent double reading...
October 17, 2017: Diagnostics
https://www.readbyqxmd.com/read/28975570/ra-223-spect-for-semi-quantitative-analysis-in-comparison-with-tc-99m-hmdp-spect-phantom-study-and-initial-clinical-experience
#13
Yoshiki Owaki, Tadaki Nakahara, Takeo Kosaka, Junichi Fukada, Atsuhiro Kumabe, Akira Ichimura, Mikoto Murakami, Kiyotaka Nakajima, Masahiro Fukushi, Kazumasa Inoue, Mototsugu Oya, Masahiro Jinzaki
BACKGROUND: Image-based measurement of absorbed dose of Ra-223 dichloride may be useful in predicting therapeutic outcome in patients with castration-resistant prostate cancer (CRPC). In general, SPECT has been found to be more accurate than planar imaging in terms of lesion-based analysis. The aims of this study were to assess the feasibility and clinical usefulness of Ra-223 SPECT. The energy spectrum of Ra-223 and SPECT images of a cylindrical phantom with a hot rod were obtained to determine the collimator candidates and energy window settings suitable for clinical Ra-223 SPECT (basic study A)...
October 3, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28972962/igf-1r-associates-with-adverse-outcomes-after-radical-radiotherapy-for-prostate-cancer
#14
Tamara Aleksic, Clare Verrill, Richard J Bryant, Cheng Han, Andrew Ross Worrall, Laurent Brureau, Stephane Larré, Geoff S Higgins, Fahad Fazal, Ahmad Sabbagh, Syed Haider, Francesca M Buffa, David Cole, Valentine M Macaulay
BACKGROUND: Activated type 1 insulin-like growth factor receptors (IGF-1Rs) undergo internalisation and nuclear translocation, promoting cell survival. We previously reported that IGF-1R inhibition delays DNA damage repair, sensitising prostate cancer cells to ionising radiation. Here we tested the clinical relevance of these findings. METHODS: We assessed associations between IGF-1R and clinical outcomes by immunohistochemistry in diagnostic biopsies of 136 men treated with 55-70 Gy external beam radiotherapy for prostate cancer, comparing results with publicly available transcriptional data in surgically treated patients...
October 3, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28925397/coactosin-like-protein-clp-cotl1-suppresses-breast-cancer-growth-through-activation-of-il-24-perp-and-inhibition-of-non-canonical-tgf%C3%AE-signaling
#15
L Xia, X Xiao, W L Liu, Y Song, T J J Liu, Y J Li, E Zacksenhaus, X J Hao, Y Ben-David
Coactosin-like protein (CLP, or Cotl1), is an F-actin-binding protein, whose role in cancer is largely unknown. Here we show that CLP/Cotl1 is highly expressed in a rat epithelial breast cancer cell line (FE1.3) compared with its mesenchymal counterpart (FE1.2). Knockdown of CLP/Cotl1 in FE1.3 cells increased cell proliferation, whereas its overexpression in FE1.2 cells inhibited proliferation in culture and reduced tumor growth in xenograft assays in mice. Mechanistically, we identified two major pathways through which CLP/Cotl1 exerts its suppressive effects...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28916273/identification-of-recurrence-sites-following-post-prostatectomy-treatment-for-prostate-cancer-using-11-c-choline-positron-emission-tomography-and-multiparametric-pelvic-mri
#16
Avinash Nehra, William P Parker, Rimki Haloi, Sean S Park, Lance A Mynderse, Val J Lowe, Brian J Davis, J Fernando Quevedo, Geoffrey B Johnson, Eugene D Kwon, R Jeffrey Karnes
PURPOSE: To describe anatomic sites of recurrence among prostate cancer patients with biochemical recurrence following radical prostatectomy (RP) and postoperative radiotherapy (RT) and/or androgen deprivation therapy (ADT) using (11)C-Choline PET/CT and multiparametric-MRI. MATERIALS AND METHODS: RP patients evaluated with (11)C-Choline PET/CT and multiparametric-MRI following RT and/or ADT were evaluated for patterns of recurrence and clinicopathologic features...
September 12, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28900507/targeting-micrornas-in-prostate-cancer-radiotherapy
#17
REVIEW
Jie Ni, Joseph Bucci, Lei Chang, David Malouf, Peter Graham, Yong Li
Radiotherapy is one of the most important treatment options for localized early-stage or advanced-stage prostate cancer (CaP). Radioresistance (relapse after radiotherapy) is a major challenge for the current radiotherapy. There is great interest in investigating mechanisms of radioresistance and developing novel treatment strategies to overcome radioresistance. MicroRNAs (miRNAs) are small, non-coding RNAs that regulate gene expression at the post-transcriptional level, participating in numerous physiological and pathological processes including cancer invasion, progression, metastasis and therapeutic resistance...
2017: Theranostics
https://www.readbyqxmd.com/read/28854948/novel-three-dimensional-bone-mapping-software-can-help-assess-progression-of-osseous-metastases-from-routine-ct
#18
D Thurtle, G M Treece, T Barrett, V J Gnanapragasam
Imaging of bone metastasis response to therapy is a research priority. Stradwin is a new software-tool, with demonstrated sub-voxel accuracy in assessing cortical bone properties from routine CT. We applied this technology to the context of osseous metastases, with particular focus on disease progression using prostate cancer as a model. 3D-rendered 'bone-maps' were produced for 20 men with advanced prostate cancer, including a sub-cohort of 9 who had undergone serial scans. Correlation between baseline interpretation and assessments of progression between modalities was assessed...
August 30, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28761595/case-spontaneous-regression-of-post-radical-prostatectomy-prostate-specific-antigen-elevation-without-adjuvant-therapy-in-a-patient-with-lymph-node-metastasis
#19
Taehyoung Lee, Yanbo Guo, Saahil Vij, Rahul Bansal, Nathan C Wong, Bobby Shayegan
Prostate cancer remains the most frequently diagnosed cancer among men. The combination of clinical stage, serum prostate-specific antigen (PSA), and Gleason score (biopsy) assists in predictive assessment of pathological stage and prognosis. Furthermore, pathological criteria, including Gleason score, surgical margin status, extracapsular extension, seminal vesicle invasion, and lymph node involvement, provide prognostication in patients undergoing radical prostatectomy (RP). In this paper, we present a case of a patient with high-risk prostate cancer with persistent PSA elevation post-RP who experiences a complete regression of PSA without any adjuvant therapy...
July 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28761588/salvage-prostatectomy-for-post-radiation-adenocarcinoma-with-treatment-effect-pathological-and-oncological-outcomes
#20
Michael J Metcalfe, Patricia Troncoso, Charles C Guo, Hsiang-Chun Chen, Yasar Bozkurt, John F Ward, Louis L Pisters
INTRODUCTION: Prostate biopsies following localized radiation therapy for prostate cancer often demonstrate residual prostatic carcinoma with treatment effect (CTE). The final oncological outcome of prostatic CTE is currently uncertain. We studied the pathological and oncological outcomes for a large cohort of patients who had CTE on post-radiation therapy biopsy and subsequently underwent salvage radical prostatectomy (SRP). METHODS: A single-centre retrospective review of all SRPs performed from 1995-2014 was performed...
July 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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