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https://www.readbyqxmd.com/read/28535103/value-frameworks-for-the-patient-provider-interaction-a-comparison-of-the-asco-value-framework-versus-nccn-evidence-blocks-in-determining-value-in-oncology
#1
Bijal Shah-Manek, Joseph S Galanto, Huong Nguyen, Robert Ignoffo
BACKGROUND: To address the rising concern about oncology drug costs, the American Society of Clinical Oncology (ASCO) and the National Comprehensive Cancer Network (NCCN) recently developed unique tools to help providers and patients make informed decisions about the value of an anticancer regimen. The ASCO Value Framework (AVF) allows users to generate a net health benefit (NHB) score along with drug acquisition costs for oncology regimens that have been compared in a prospective randomized clinical trial...
June 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28528814/preclinical-study-using-malat1-small-interfering-rna-or-androgen-receptor-splicing-variant-7-degradation-enhancer-asc-j9-%C3%A2-to-suppress-enzalutamide-resistant-prostate-cancer-progression
#2
Ronghao Wang, Yin Sun, Lei Li, Yuanjie Niu, Wanying Lin, Changyi Lin, Emmanuel S Antonarakis, Jun Luo, Shuyuan Yeh, Chawnshang Chang
BACKGROUND: While androgen-deprivation-therapy with the recently developed antiandrogen enzalutamide (Enz) shows promising therapeutic benefits in men with metastatic castration-resistant prostate cancer (PCa), many patients develop resistance to Enz, which may involve the induction of the androgen receptor (AR) splicing variant 7 (AR-v7). OBJECTIVE: Our aim is to identify the mechanisms responsible for AR-v7 production and to develop novel preclinical approaches to suppress the Enz-resistant (EnzR) PCa...
May 18, 2017: European Urology
https://www.readbyqxmd.com/read/28527622/genome-wide-copy-number-analysis-reveals-candidate-gene-loci-that-confer-susceptibility-to-high-grade-prostate-cancer
#3
Prevathe Poniah, Shamsul Mohd Zain, Azad Hassan Abdul Razack, Shanggar Kuppusamy, Shankar Karuppayah, Hooi Sian Eng, Zahurin Mohamed
BACKGROUND: Two key issues in prostate cancer (PCa) that demand attention currently are the need for a more precise and minimally invasive screening test owing to the inaccuracy of prostate-specific antigen and differential diagnosis to distinguish advanced vs. indolent cancers. This continues to pose a tremendous challenge in diagnosis and prognosis of PCa and could potentially lead to overdiagnosis and overtreatment complications. Copy number variations (CNVs) in the human genome have been linked to various carcinomas including PCa...
May 17, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28524822/simultaneous-delivery-time-and-aperture-shape-optimization-for-the-volumetric-modulated-arc-therapy-vmat-treatment-planning-problem
#4
Mehdi Mahnam, Michel Gendreau, Nadia Lahrichi, Louis-Martin Rousseau
In this paper, we propose a novel heuristic algorithm for the volumetric modulated arc therapy (VMAT) treatment planning problem, optimizing the trade-off between delivery time and treatment quality. We present a new mixed integer programming model in which the multi-leaf collimator leaf positions, gantry speed, and dose rate are determined simultaneously. Our heuristic is based on column generation; the aperture conguration is modeled in the columns and the dose distribution and time restriction in the rows...
May 19, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28521441/the-context-of-prostate-cancer-genomics-in-personalized-medicine
#5
Yanling Liu
Prostate cancer is one of the most common types of cancer in males. Heterogeneous genomic aberrations may lead to prostate cancer onset, progression and metastasis. This heterogeneity also contributes to the variety in cancer risk and outcomes, different drug responses and progression, observed between individual patients. Classical prognostic factors, including prostate-specific antigen, Gleason Score and clinical tumor staging, are not sufficient to portray the complexity of a clinically relevant cancer diagnosis, risk prognosis, treatment choice and therapy monitoring...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515807/external-validation-of-the-procars-nomograms-and-comparison-of-existing-risk-stratification-tools-for-localized-prostate-cancer
#6
David Tiberi, George Rodrigues, Tom Pickles, Jim Morris, Juanita Crook, Andre-Guy Martin, Fabio Cury, Charles Catton, Himu Lukka, Andrew Warner, Daniel Taussky
INTRODUCTION: The purpose of this study was to perform a direct comparison of several existing risk-stratification tools for localized prostate cancer in terms of their ability to predict for biochemical failure-free survival (BFFS). Two large databases were used and an external validation of two recently developed nomograms on an independent cohort was also performed in this analysis. METHODS: Patients who were treated with external beam radiotherapy (EBRT) and/or brachytherapy for localized prostate cancer were selected from the multi-institutional Genitourinary Radiation Oncologists of Canada (GUROC) Prostate Cancer Risk Stratification (ProCaRS) database (n=7974) and the Centre Hospitalier de l'Université de Montréal (CHUM) validation database (n=2266)...
March 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28511883/a-prostate-cancer-nimbosus-genomic-instability-and-schlap1-dysregulation-underpin-aggression-of-intraductal-and-cribriform-subpathologies
#7
Melvin L K Chua, Winnie Lo, Melania Pintilie, Jure Murgic, Emilie Lalonde, Vinayak Bhandari, Osman Mahamud, Anuradha Gopalan, Charlotte F Kweldam, Geert J L H van Leenders, Esther I Verhoef, Agnes Marije Hoogland, Julie Livingstone, Alejandro Berlin, Alan Dal Pra, Alice Meng, Junyan Zhang, Michèle Orain, Valérie Picard, Hélène Hovington, Alain Bergeron, Louis Lacombe, Yves Fradet, Bernard Têtu, Victor E Reuter, Neil Fleshner, Michael Fraser, Paul C Boutros, Theodorus H van der Kwast, Robert G Bristow
BACKGROUND: Intraductal carcinoma (IDC) and cribriform architecture (CA) represent unfavorable subpathologies in localized prostate cancer. We recently showed that IDC shares a clonal ancestry with the adjacent glandular adenocarcinoma. OBJECTIVE: We investigated for the co-occurrence of "aggression" factors, genomic instability and hypoxia, and performed gene expression profiling of these tumors. DESIGN, SETTING, AND PARTICIPANTS: A total of 1325 men were treated for localized prostate cancer from four academic institutions (University Health Network, CHU de Québec-Université Laval, Memorial Sloan Kettering Cancer Center [MSKCC], and Erasmus Medical Center)...
May 13, 2017: European Urology
https://www.readbyqxmd.com/read/28503903/the-23rd-annual-prostate-cancer-foundation-scientific-retreat-report
#8
REVIEW
Andrea K Miyahira, Howard R Soule
INTRODUCTION: The 23rd Annual Prostate Cancer Foundation (PCF) Scientific Retreat was convened October 27-29, 2016, in Carlsbad, CA. METHODS: This event focuses on the latest advances in basic, translational, and clinical prostate cancer research with the greatest promise for advancing our understanding of prostate cancer biology and improving patient outcomes and quality of life. RESULTS: Themes highlighted at this year's meeting included: i) targeting DNA repair deficiency in prostate cancer; ii) optimizing the use of Radium-223 and bone-targeting agents; iii) advances in cancer immunotherapeutic approaches; iv) targeting developmental pathways in prostate cancer; v) advances in circulating tumor DNA technology and applications; vi) precision survivorship; and vii) novel treatments and treatment strategies in prostate cancer...
May 14, 2017: Prostate
https://www.readbyqxmd.com/read/28501574/androgen-production-in-pediatric-adrenocortical-tumors-may-occur-via-both-the-classic-and-or-the-alternative-backdoor-pathway
#9
Nesa Marti, Jana Malikova, José A Galván, Maude Aebischer, Marco Janner, Zdenek Sumnik, Barbora Obermannova, Genevieve Escher, Aurel Perren, Christa E Flück
Children with adrenocortical tumors (ACTs) often present with virilization due to high tumoral androgen production, with dihydrotestosterone (DHT) as most potent androgen. Recent work revealed two pathways for DHT biosynthesis, the classic and the backdoor pathway. Usage of alternate routes for DHT production has been reported in castration-resistant prostate cancer, CAH and PCOS. To assess whether the backdoor pathway may contribute to the virilization of pediatric ACTs, we investigated seven children suffering from androgen producing tumors using steroid profiling and immunohistochemical expression studies...
May 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28500633/the-novel-role-of-pyrvinium-in-cancer-therapy
#10
REVIEW
Amir Abbas Momtazi-Borojeni, Elham Abdollahi, Faezeh Ghasemi, Michele Caraglia, Amirhossein Sahebkar
Pyrvinium pamoate (PP) is a quinoline-derived cyanine dye which was officially approved by FDA for its anthelmintic properties and therapeutic function against animal-like protists such as Cryp-tosporidium parvum and Plasmodium falciparum in the 1950 s. In the last 10 years, several studies have shown the novel activity of pyrvinium in tumor therapy. Some investigations have indicated that pyrvinium could delay or inhibit tumor cell proliferation in cancer models including colon, breast, lung and prostate cancer and some hematological malignancies...
May 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28498618/phase-i-clinical-trial-of-cell-division-associated-1-cdca1-peptide-vaccination-for-castration-resistant-prostate-cancer
#11
Wataru Obara, Fuminori Sato, Kazuyoshi Takeda, Renpei Kato, Yoichiro Kato, Mitsugu Kanehira, Ryo Takata, Hiromitsu Mimata, Tamotsu Sugai, Yusuke Nakamura, Tomoaki Fujioka
We screened cell division associated 1 (CDCA1) as an oncogene that is overexpressed on several cancers, including prostate cancer. We also identified a highly immunogenic HLA-A*2402-restricted epitope peptide corresponding to part of the CDCA1 protein. We conducted a phase I clinical trial for patients with castration resistant prostate cancer (CRPC) using a CDCA1 peptide vaccination. Twelve patients having HLA-A*2402 with CRPC after failure of docetaxel chemotherapy were enrolled. They received subcutaneous administration of the CDCA1 peptide as an emulsion with Montanide ISA51VG once a week in a dose-escalation manner (doses of 1...
May 12, 2017: Cancer Science
https://www.readbyqxmd.com/read/28498452/calpain-and-ar-v7-two-potential-therapeutic-targets-to-overcome-acquired-docetaxel-resistance-in-castration-resistant-prostate-cancer-cells
#12
Lei Liu, Ning Lou, Xiang Li, Guanghua Xu, Hailong Ruan, Wen Xiao, Bin Qiu, Lin Bao, Changfei Yuan, Xinmian Huang, Keshan Wang, Qi Cao, Ke Chen, Hongmei Yang, Xiaoping Zhang
Docetaxel-based chemotherapy has been widely used as the first-line treatment for castration-resistant prostate cancer (CRPC) patients. However, the mechanisms of docetaxel-resistance remain unclear. In the present study with the establishment of 2 in vitro models of docetaxel-resistant CRPC cell sublines, we firstly reported that activation of calpain may play a promotional role in the resistance of docetaxel in prostate cancer, meanwhile using the calpain inhibitor combined with docetaxel improved the efficiency of docetaxel in docetaxel-resistant cell sublines...
May 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28497777/phase-i-ii-clinical-trial-to-assess-safety-and-efficacy-of-intratumoral-and-subcutaneous-injection-of-hvj-e-in-castration-resistant-prostate-cancer-patients
#13
K Fujita, Y Nakai, A Kawashima, T Ujike, A Nagahara, T Nakajima, T Inoue, C M Lee, M Uemura, Y Miyagawa, Y Kaneda, N Nonomura
Inactivated Sendai virus particles (hemagglutinating virus of Japan envelope (HVJ-E)) have a novel antitumor effect: HVJ-E fused to prostate cancer cells via cell surface receptor causes apoptosis of prostate cancer cells in vitro and in vivo. HVJ-E also induces antitumor immunity by activating natural killer (NK) cells and cytotoxic T cells and suppressing regulatory T cells in vivo. We conducted an open-label, single-arm, phase I/II clinical trial in patients with castration-resistant prostate cancer (CRPC) to determine the safety and efficacy of intratumoral and subcutaneous injection of HVJ-E...
May 12, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28495207/targeting-the-hsp90-c-terminal-domain-to-induce-allosteric-inhibition-and-selective-client-downregulation
#14
Kourtney M Goode, Dino Petrov, Renee E Vickman, Scott A Crist, Pete E Pascuzzi, Tim L Ratliff, V Jo Davisson, Tony R Hazbun
BACKGROUND: Inhibition of Hsp90 is desirable due to potential downregulation of oncogenic clients. Early generation inhibitors bind to the N-terminal domain (NTD) but C-terminal domain (CTD) inhibitors are a promising class because they do not induce a heat shock response. Here we present a new structural class of CTD binding molecules with a unique allosteric inhibition mechanism. METHODS: A hit molecule, NSC145366, and structurally similar probes were assessed for inhibition of Hsp90 activities...
May 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28494257/novel-1-7-ethoxy-1-benzofuran-2-yl-substituted-chalcone-derivatives-synthesis-characterization-and-anticancer-activity
#15
Demet Coskun, Merve Erkisa, Engin Ulukaya, Mehmet Fatih Coskun, Ferda Ari
Cancer treatment still requires new compounds to be discovered. Chalcone and its derivatives exhibit anticancer potential in different cancer cells. A new series of benzofuran substituted chalcone derivatives was synthesized by the base-catalyzed Claisen-Schmidt reaction of the 1-(7-ethoxy-1-benzofuran-2-yl) ethanone with different aromatic aldehydes to yield 1-(7-ethoxy-1-benzofuran-2-yl) substituted chalcone derivatives 3a-j. The derivatives were characterized by elemental analysis, FT-IR, (1)H NMR and (13)C NMR spectroscopy techniques...
May 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28494073/associations-of-luminal-and-basal-subtyping-of-prostate-cancer-with-prognosis-and-response-to-androgen-deprivation-therapy
#16
Shuang G Zhao, S Laura Chang, Nicholas Erho, Menggang Yu, Jonathan Lehrer, Mohammed Alshalalfa, Corey Speers, Matthew R Cooperberg, Won Kim, Charles J Ryan, Robert B Den, Stephen J Freedland, Edwin Posadas, Howard Sandler, Eric A Klein, Peter Black, Roland Seiler, Scott A Tomlins, Arul M Chinnaiyan, Robert B Jenkins, Elai Davicioni, Ashley E Ross, Edward M Schaeffer, Paul L Nguyen, Peter R Carroll, R Jeffrey Karnes, Daniel E Spratt, Felix Y Feng
Importance: There is a clear need for a molecular subtyping approach in prostate cancer to identify clinically distinct subgroups that benefit from specific therapies. Objectives: To identify prostate cancer subtypes based on luminal and basal lineage and to determine associations with clinical outcomes and response to treatment. Design, Setting, and Participants: The PAM50 classifier was used to subtype 1567 retrospectively collected (median follow-up, 10 years) and 2215 prospectively collected prostate cancer samples into luminal- and basal-like subtypes...
May 11, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28492138/long-noncoding-rna-schlap1-accelerates-the-proliferation-and-metastasis-of-prostate-cancer-via-targeting-mir-198-and-promoting-the-mapk1-pathway
#17
Ye Li, Haihong Luo, Nan Xiao, Jianmin Duan, Zhiping Wang, Shuanke Wang
Prostate cancer has become the most commonly diagnosed and the second leading cause of cancer-related deaths in males.The long non-coding RNA SChLAP1 (second chromosome locus associated with prostate-1) has been found overexpressed in a subset of prostate cancers; however the significance and mechanism of SChLAP1 in prostate cancer is not well-known. In this study we explored the role of SChLAP1 in prostate cancer tissues, cell lines and mouse models. The effects of SChLAP1 on miR-198 and MAPK1 were specifically examined...
May 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28490047/development-and-validation-of-an-lc-ms-ms-method-for-the-simultaneous-quantification-of-abiraterone-enzalutamide-and-their-major-metabolites-in-human-plasma
#18
Merel van Nuland, M J X Hillebrand, H Rosing, J H M Schellens, J H Beijnen
BACKGROUND: Abiraterone acetate and enzalutamide are 2 novel drugs for the treatment of metastatic castration-resistant prostate cancer. The metabolism of these drugs is extensive. Major metabolites are N-desmethyl enzalutamide, enzalutamide carboxylic acid, abiraterone N-oxide sulfate, and abiraterone sulfate; of which N-desmethyl enzalutamide is reported to possess antiandrogen capacities. A liquid chromatography-tandem mass spectrometry method for simultaneous quantification of abiraterone, enzalutamide, and the main metabolites has been developed and validated to support therapeutic drug monitoring...
June 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28487463/male-breast-cancer-as-a-second-primary-cancer-increased-risk-following-lymphoma
#19
Deborah E Farr, Alexandra Thomas, Seema Ahsan Khan, Mary C Schroeder
BACKGROUND: Male breast cancer (MBC) as a second primary cancer (SPC) has a known association with prior MBC. However, its association with non-breast index malignancies, relative to population risk, has not been previously reported. MATERIALS AND METHODS: Using Surveillance, Epidemiology, and End Results program (9 catchment area) data, we identified MBCs diagnosed from 1973-2012 as their SPC. Information regarding the index malignancy was also obtained. Standardized incidence ratios (SIR) of MBC as SPC were estimated, along with incidence rates and trends...
May 9, 2017: Oncologist
https://www.readbyqxmd.com/read/28487115/lncrna-hoxd-as1-regulates-proliferation-and-chemo-resistance-of-castration-resistant-prostate-cancer-via-recruiting-wdr5
#20
Peng Gu, Xu Chen, Ruihui Xie, Jinli Han, Weibin Xie, Bo Wang, Wen Dong, Changhao Chen, Meihua Yang, Junyi Jiang, Ziyue Chen, Jian Huang, Tianxin Lin
Castration-resistant prostate cancer (CRPC) that occurs after the failure of androgen deprivation therapy is the leading cause of deaths in prostate cancer patients. Thus, there is an obvious and urgent need to fully understand the mechanism of CRPC and discover novel therapeutic targets. Long noncoding RNAs (lncRNAs) are crucial regulators in many human cancers, yet their potential roles and molecular mechanisms in CRPC are poorly understood. In this study, we discovered that an lncRNA HOXD-AS1 is highly expressed in CRPC cells and correlated closely with Gleason score, T stage, lymph nodes metastasis, and progression-free survival...
May 6, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
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