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metastatic prostate cancer

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https://www.readbyqxmd.com/read/28725594/weekly-ascorbic-acid-infusion-in-castration-resistant-prostate-cancer-patients-a-single-arm-phase-ii-trial
#1
Torben K Nielsen, Martin Højgaard, Jon T Andersen, Niklas Rye Jørgensen, Bo Zerahn, Bent Kristensen, Trine Henriksen, Jens Lykkesfeldt, Kári J Mikines, Henrik E Poulsen
BACKGROUND: Ascorbic acid (AA) has in vivo cytotoxic properties at concentrations that can only be achieved through intravenous (IV) administration in humans. Treatment with intravenous AA is widely and increasingly used in complementary medicine despite a lack of clinical evidence for the efficacy of this treatment. METHODS: This non-comparative, single-center, phase II trial included patients with chemotherapy-naïve, metastatic castration-resistant prostate cancer (mCRPC) from an outpatient clinic to evaluate the efficacy and safety of IV AA therapy...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725583/positron-emission-tomography-pet-in-primary-prostate-cancer-staging-and-risk-assessment
#2
REVIEW
Sandra Bednarova, Maria L Lindenberg, Maria Vinsensia, Chiara Zuiani, Peter L Choyke, Baris Turkbey
Prostate cancer (PCa) is one of the few neoplasms that are not well served by 18F-Fluorodeoxyglucose (FDG) positron emission tomography (PET). As a result, a number of PET tracers have been developed to target particular biological features of PCa. Such agents can be used for diagnosis, staging, identification of biochemical recurrence (BCR) and evaluation of metastatic disease. Here, we focus on primary disease and local staging. To date, magnetic resonance imaging (MRI) has proven superior to PET in the imaging of primary PCa...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28725433/macrophage-type-2-differentiation-in-a-patient-with-laryngeal-squamous-cell-carcinoma-and-metastatic-prostate-adenocarcinoma-to-the-cervical-lymph-nodes
#3
Michael C Topf, Madalina Tuluc, Larry A Harshyne, Adam Luginbuhl
BACKGROUND: The tumor microenvironment often polarizes infiltrating macrophages towards a type 2, or M2 phenotype, that is characterized by expression of various cysteine-rich, scavenger receptors, including CD163. The primary function of M2 macrophages is to facilitate wound healing. As such, they are capable of providing metabolic support to a growing tumor, neovascularization, as well as protection from cytotoxic T cells. The tumor microenvironment contains a milieu of secreted factors and vesicles, which in certain circumstances can gain access to lymphatic vessels that drain to local lymph nodes...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28724986/core-shell-lipid-polymer-hybrid-nanoparticles-with-combined-docetaxel-and-molecular-targeted-therapy-for-the-treatment-of-metastatic-prostate-cancer
#4
Qi Wang, Heba Alshaker, Torsten Böhler, Shyam Srivats, Yimin Chao, Colin Cooper, Dmitri Pchejetski
Many prostate cancers relapse after initial chemotherapy treatment. Combining molecular and chemotherapy together with encapsulation of drugs in nanocarriers provides effective drug delivery and toxicity reduction. We developed core shell lipid-polymer hybrid nanoparticles (CSLPHNPs) with poly (lactic-co-glycolic acid) (PLGA) core and lipid layer containing docetaxel and clinically used inhibitor of sphingosine kinase 1 (SK1) FTY720 (fingolimod). We show for the first time that FTY720 (both free and in CSLPHNPs) re-sensitizes castrate resistant prostate cancer cells and tumors to docetaxel, allowing a four-fold reduction in effective dose...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724614/nuclear-mtor-acts-as-a-transcriptional-integrator-of-the-androgen-signaling-pathway-in-prostate-cancer
#5
Étienne Audet-Walsh, Catherine R Dufour, Tracey Yee, Fatima Z Zouanat, Ming Yan, Georges Kalloghlian, Mathieu Vernier, Maxime Caron, Guillaume Bourque, Eleonora Scarlata, Lucie Hamel, Fadi Brimo, Armen G Aprikian, Jacques Lapointe, Simone Chevalier, Vincent Giguère
Androgen receptor (AR) signaling reprograms cellular metabolism to support prostate cancer (PCa) growth and survival. Another key regulator of cellular metabolism is mTOR, a kinase found in diverse protein complexes and cellular localizations, including the nucleus. However, whether nuclear mTOR plays a role in PCa progression and participates in direct transcriptional cross-talk with the AR is unknown. Here, via the intersection of gene expression, genomic, and metabolic studies, we reveal the existence of a nuclear mTOR-AR transcriptional axis integral to the metabolic rewiring of PCa cells...
July 19, 2017: Genes & Development
https://www.readbyqxmd.com/read/28723656/inhibitor-of-h3k27-demethylase-jmjd3-utx-gsk-j4-is-a-potential-therapeutic-option-for-castration-resistant-prostate-cancer
#6
Viacheslav M Morozov, Ying Li, Matthew M Clowers, Alexander M Ishov
Androgen receptor (AR) mediates initiation and progression of prostate cancer (PCa); AR-driven transcription is activated by binding of androgens to the ligand-binding domain (LBD) of AR. Androgen ablation therapy offers only a temporary relief of locally advanced and metastatic PCa, and the disease eventually recurs as a lethal castration-resistant PCa (CRPC) as there is no effective treatment for CRPC patients. Thus, it is critical to identify novel targeted and combinatorial regimens for clinical management of CRPC...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28723523/metastatic-castration-resistant-prostate-cancer-major-progress-leading-to-even-more-questions
#7
Nicolas Mottet
Treatment of metastatic castration-resistant prostate cancer is complex and we are facing more questions with major practical impact with the available effective drugs. Treatment optimization requires that all clinical partners work together. Survival is linked to the number of regimen used. The androgen pathway is key, while chemotherapy is the other major tool.
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723521/bone-scan-index-and-progression-free-survival-data-for-progressive-metastatic-castration-resistant-prostate-cancer-patients-who-received-odm-201-in-the-arades-multicentre-study
#8
Mariana Reza, Robert Jones, John Aspegren, Christophe Massard, Leena Mattila, Mika Mustonen, Per Wollmer, Elin Trägårdh, Eva Bondesson, Lars Edenbrandt, Karim Fizazi, Anders Bjartell
BACKGROUND: ODM-201, a new-generation androgen receptor inhibitor, has shown clinical efficacy in prostate cancer (PCa). Quantitative methods are needed to accurately assess changes in bone as a measurement of treatment response. The Bone Scan Index (BSI) reflects the percentage of skeletal mass a given tumour affects. OBJECTIVE: To evaluate the predictive value of the BSI in metastatic castration-resistant PCa (mCRPC) patients undergoing treatment with ODM-201...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723520/bone-scan-index-as-an-imaging-biomarker-in-metastatic-castration-resistant-prostate-cancer-a-multicentre-study-based-on-patients-treated-with-abiraterone-acetate-zytiga-in-clinical-practice
#9
Mariana Reza, Mattias Ohlsson, Reza Kaboteh, Aseem Anand, Ingela Franck-Lissbrant, Jan-Erik Damber, Anders Widmark, Camilla Thellenberg-Karlsson, Lars Budäus, Thomas Steuber, Till Eichenauer, Per Wollmer, Lars Edenbrandt, Elin Trägårdh, Anders Bjartell
BACKGROUND: Abiraterone acetate (AA) prolongs survival in metastatic castration-resistant prostate cancer (mCRPC) patients. To measure treatment response accurately in bone, quantitative methods are needed. The Bone Scan Index (BSI), a prognostic imaging biomarker, reflects the tumour burden in bone as a percentage of the total skeletal mass calculated from bone scintigraphy. OBJECTIVE: To evaluate the value of BSI as a biomarker for outcome evaluation in mCRPC patients on treatment with AA according to clinical routine...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723519/individual-patient-data-analysis-of-randomized-clinical-trials-impact-of-black-race-on-castration-resistant-prostate-cancer-outcomes
#10
Daniel E Spratt, Yu-Wei Chen, Brandon A Mahal, Joseph R Osborne, Shuang G Zhao, Todd M Morgan, Ganesh Palapattu, Felix Y Feng, Paul L Nguyen
BACKGROUND: Population data suggest that black men have a higher risk of dying from prostate cancer (PCa) than other racial ethnicities. OBJECTIVE: To examine the impact of black race on progression-free survival (PFS) and overall survival (OS) among men with metastatic castration-resistant PCa (mCRPC) enrolled in randomized controlled trials (RCTs). DESIGN, SETTING, AND PARTICIPANTS: A pooled analysis was performed on individual patient data from five modern PCa RCTs available from Project Data Sphere...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723515/understanding-mechanisms-of-resistance-in-metastatic-castration-resistant-prostate-cancer-the-role-of-the-androgen-receptor
#11
REVIEW
Derya Tilki, Edward M Schaeffer, Christopher P Evans
CONTEXT: After initiation of androgen deprivation therapy (ADT), most patients progress to castration-resistant prostate cancer (CRPC) within 2 or 3 yr. In the USA, approximately 67000 men are estimated to have metastatic CRPC. OBJECTIVE: To provide an overview of different mechanisms driving resistance to therapy in metastatic CRPC, with a focus on androgen receptor (AR)-dependent pathways. EVIDENCE ACQUISITION: A Medline search via PubMed was performed using the keywords metastatic castration resistant prostate cancer (mCRPC), castration-resistant, CRPC, prostate cancer, androgen resistance, hormone-refractory, hormone-independent, androgen receptor, and androgen receptor axis...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723514/optimal-treatment-sequence-for-metastatic-castration-resistant-prostate-cancer
#12
REVIEW
David Lorente, Karim Fizazi, Christopher Sweeney, Johann S de Bono
CONTEXT: Unprecedented development of therapeutics for prostate cancer in recent years has left clinicians with the challenge of adequately sequencing therapeutic agents to optimise patient benefit. No clear guidelines exist on optimal treatment sequences. OBJECTIVE: To summarise the evidence on first-line activity, cross-resistance, and potential combinations of agents approved for metastatic castration-resistant prostate cancer (mCRPC). EVIDENCE ACQUISITION: A nonsystematic literature search of articles on agent sequencing in mCRPC in PubMed and relevant cancer conferences up to June 2016 was performed...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723513/the-natural-history-and-outcome-predictors-of-metastatic-castration-resistant-prostate-cancer
#13
REVIEW
Robert J van Soest, Jason A Efstathiou, Cora N Sternberg, Bertand Tombal
CONTEXT: Biomarkers for the treatment of metastatic castration-resistant prostate cancer (mCRPC) are urgently needed by clinicians to facilitate treatment decisions. OBJECTIVE: To review current prognostic and predictive biomarkers in mCRPC. EVIDENCE ACQUISITION: We performed a nonsystematic review of the literature from 2004 to August 2016 by searching in Medline. Cross-matching references were used to search for additional articles. We reviewed clinical research and review articles written in the English language...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723508/targeting-adaptive-pathways-in-metastatic-treatment-resistant-prostate-cancer-update-on-the-stand-up-2-cancer-prostate-cancer-foundation-supported-west-coast-prostate-cancer-dream-team
#14
Rahul Aggarwal, Tomasz M Beer, Martin Gleave, Joshua M Stuart, Matthew Rettig, Christopher P Evans, Jack Youngren, Joshi J Alumkal, Jiaoti Huang, George Thomas, Owen Witte, Eric J Small
The Stand Up 2 Cancer/Prostate Cancer Foundation-funded West Coast Dream Team project is a prospective multi-institutional study focused on acquiring metastatic castration-resistant prostate cancer (mCRPC) biopsy tissue at the time of resistance to abiraterone or enzalutamide. It is the first large-scale study designed to analyze mCRPC tissue specifically in this patient population. Study accrual is on target, with 261 out of a planned 300 metastatic tumor biopsies performed by August 2016. Paired biopsies have been completed in 42 patients, with paired genomic data before and after therapy obtained in 26 cases...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723507/the-use-of-biomarkers-to-manage-men-with-metastatic-prostate-cancer-one-day-but-not-yet
#15
Marcus G Cumberbatch, James W Catto
Metastatic castration-resistant prostate cancer has poor survival outcomes. New prognostic gene panels are being used in developing ways to interrogate the likely natural history of an individual's disease. Biomarker innovations to calculate tumour burden also hold promise for the future, but there is still some way to go to validate and stratify their use.
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723506/biomarkers-for-metastatic-castration-resistant-prostate-cancer-mcrpc-yes-or-no-predictive-and-response-biomarkers-towards-precision-medicine-in-mcrpc
#16
Joaquin Mateo
Advances in drug development and molecular studies for castration-resistant prostate cancer (CRPC) render the possibility of more efficient and precise patient care through the use of predictive, response, and resistance biomarkers. Thorough scrutiny of assay validation and clinical qualification processes for biomarkers in development, ideally in parallel with clinical trials, is critical for the success of personalised medicine in CRPC management.
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723505/delivering-optimal-care-for-metastatic-prostate-cancer-a-strengthening-alliance-between-urologists-and-medical-oncologists
#17
EDITORIAL
Alberto Briganti, Maria De Santis, Gianluca Giannarini, Christopher J Sweeney
No abstract text is available yet for this article.
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723476/charting-recent-progress-and-challenges-in-metastatic-castration-resistant-prostate-cancer-is-there-an-optimal-treatment-sequence
#18
REVIEW
Stéphane Oudard, Pablo Maroto, Gaston Demonty, Winald R Gerritsen
CONTEXT: Recent developments in the treatment of metastatic castration-resistant prostate cancer (mCRPC) have led to uncertainty about the optimal sequence of agents. OBJECTIVE: To review and assess treatment options and sequence in patients with mCRPC. EVIDENCE ACQUISITION: To identify data on the optimal use of approved treatments, we searched PubMed for studies on the use of recently approved agents for men with mCRPC published before March 2015...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28722004/oral-gingival-metastasis-a-diagnostic-dilemma
#19
Nalini Aswath, Chandrakanth Balakrishnan, Vidyarani Shyamsundar, Sarumathi Thirrugnanamurthy
Oral cavity is a rare target for metastasis with an incidence of 1% among all oral cancers. In 24% of such cases, oral metastasis is the first indication of an undiagnosed primary. Metastatic oral malignancies have been reported in the mandible, tongue, and gingiva. Although gingival metastasis has been reported from lung, prostate, rectal carcinoma in men and carcinoma of breast, adrenal glands, and genitalia in females, gingival metastasis from carcinoma of the penis has not been reported. Herein, a case of metastatic gingival carcinoma that developed after extraction of teeth from primary carcinoma of the penis is presented...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28720863/prostate-cancer-mutations-in-ctdna-reflect-features-of-metastatic-disease
#20
Peter Sidaway
No abstract text is available yet for this article.
July 18, 2017: Nature Reviews. Urology
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