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Prostate Cancer Focal Therapy

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https://www.readbyqxmd.com/read/29208480/robotic-stereotactic-retreatment-for-biochemical-control-in-previously-irradiated-patients-affected-by-recurrent-prostate-cancer
#1
M Loi, V Di Cataldo, G Simontacchi, B Detti, P Bonomo, L Masi, I Desideri, D Greto, G Francolini, V Carfora, D Pezzulla, M Perna, G A Carta, L Livi
AIMS: Robotic stereotactic body radiotherapy (rSBRT) to local recurrences emerged as a valuable option for exclusive local failure after prior external beam radiation therapy (EBRT) for localised prostate cancer. The aim of this study was to assess the efficacy and safety of rSBRT in patients experiencing locally recurrent prostate cancer after prior definitive or postoperative radiotherapy using the Cyberknife. MATERIALS AND METHODS: Data from 50 patients were retrospectively reviewed...
December 2, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29206373/focal-therapy-will-be-the-next-step-on-prostate-cancer-management-opinion-no
#2
EDITORIAL
Wagner Eduardo Matheus, Ubirajara Ferreira
No abstract text is available yet for this article.
November 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29206372/focal-therapy-will-be-the-next-step-on-prostate-cancer-management-opinion-yes
#3
EDITORIAL
Stênio de Cássio Zequi
No abstract text is available yet for this article.
November 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29174615/can-focal-treatment-replace-radical-treatment-in-prostate-cancer-for-focal-therapy
#4
Scott Eggener
No abstract text is available yet for this article.
November 22, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29163793/rapid-ultra-low-coverage-copy-number-profiling-of-cell-free-dna-as-a-precision-oncology-screening-strategy
#5
Daniel H Hovelson, Chia-Jen Liu, Yugang Wang, Qing Kang, James Henderson, Amy Gursky, Scott Brockman, Nithya Ramnath, John C Krauss, Moshe Talpaz, Malathi Kandarpa, Rashmi Chugh, Missy Tuck, Kirk Herman, Catherine S Grasso, Michael J Quist, Felix Y Feng, Christine Haakenson, John Langmore, Emmanuel Kamberov, Tim Tesmer, Hatim Husain, Robert J Lonigro, Dan Robinson, David C Smith, Ajjai S Alva, Maha H Hussain, Arul M Chinnaiyan, Muneesh Tewari, Ryan E Mills, Todd M Morgan, Scott A Tomlins
Current cell-free DNA (cfDNA) next generation sequencing (NGS) precision oncology workflows are typically limited to targeted and/or disease-specific applications. In advanced cancer, disease burden and cfDNA tumor content are often elevated, yielding unique precision oncology opportunities. We sought to demonstrate the utility of a pan-cancer, rapid, inexpensive, whole genome NGS of cfDNA approach (PRINCe) as a precision oncology screening strategy via ultra-low coverage (~0.01x) tumor content determination through genome-wide copy number alteration (CNA) profiling...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29122512/-salvage-prostate-brachytherapy-a-solution-for-local-failures-after-a-primary-radiation-therapy
#6
J-M Cosset, G Créhange
Salvage brachytherapy after a first prostate radiation therapy is an emerging technique, which has to be considered in the therapeutic armamentarium in the clinically challenging context of patients with isolated local failure from prostate cancer who may still be considered for cure. These occult failures are more and more frequently diagnosed at an early stage, thanks to targeted biopsies and advances in imaging modalities, such as multiparametric MRI and PET-CT. Salvage brachytherapy benefits from the implantation accuracy of brachytherapy procedures using 3D dosimetry and has resulted in more than 50% tumour control rates with long-term...
November 6, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29122471/3d-registration-of-mpmri-for-assessment-of-prostate-cancer-focal-therapy
#7
Clément Orczyk, Andrew B Rosenkrantz, Artem Mikheev, Arnauld Villers, Myriam Bernaudin, Samir S Taneja, Samuel Valable, Henry Rusinek
RATIONALE AND OBJECTIVES: This study aimed to assess a novel method of three-dimensional (3D) co-registration of prostate magnetic resonance imaging (MRI) examinations performed before and after prostate cancer focal therapy. MATERIALS AND METHODS: We developed a software platform for automatic 3D deformable co-registration of prostate MRI at different time points and applied this method to 10 patients who underwent focal ablative therapy. MRI examinations were performed preoperatively, as well as 1 week and 6 months post treatment...
November 6, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29113170/screening-of-potential-therapy-targets-for-prostate-cancer-using-integrated-analysis-of-two-gene-expression-profiles
#8
Rui Zhao, Yao Wang, Muchun Zhang, Xinquan Gu, Weihua Wang, Jiufeng Tan, Xin Wei, Ning Jin
The aim of the present study was to analyze potential therapy targets for prostate cancer using integrated analysis of two gene expression profiles. First, gene expression profiles GSE38241 and GSE3933 were downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) between prostate cancer and normal control samples were identified using the Linear Models for Microarray Data package. Pathway enrichment analysis of DEGs was performed using Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29107274/focal-ablation-of-early-stage-prostate-cancer-candidate-selection-treatment-guidance-and-assessment-of-outcome
#9
REVIEW
Eric Edison, Taimur Tariq Shah, Hashim U Ahmed
Prostate cancer lesions smaller than 0.5 m3, or Gleason pattern 3, are likely clinically insignificant. Clinically significant disease is often limited to a single index lesion. Focal ablation targets this index lesion, maintains oncological control, and minimizes complications by preserving healthy prostate tissue. Template mapping biopsy or multiparametric MRI-targeted biopsies are used to identify appropriate index lesions. Multiple energy modalities have been tested, including high-intensity frequency ultrasound, cryoablation, laser ablation, photodynamic therapy, focal brachytherapy, radiofrequency ablation, irreversible electroporation...
November 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/29102671/preliminary-diagnostic-accuracy-of-multiparametric-magnetic-resonance-imaging-to-detect-residual-prostate-cancer-following-focal-therapy-with-irreversible-electroporation
#10
Matthijs J Scheltema, John I Chang, Willemien van den Bos, Maret Böhm, Warick Delprado, Ilan Gielchinsky, Theo M de Reijke, Jean J de la Rosette, Amila R Siriwardana, Ron Shnier, Phillip D Stricker
BACKGROUND: It is recommended to perform multiparametric magnetic resonance imaging (mpMRI) in the follow-up following focal therapy of prostate cancer (PCa). OBJECTIVE: To determine the diagnostic accuracy of mpMRI to detect residual PCa following focal therapy with irreversible electroporation. DESIGN, SETTING, AND PARTICIPANTS: Seventy-six patients with biopsy-proven localized PCa consented for primary irreversible electroporation between February 2013 and March 2016...
November 1, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29102647/the-transcriptional-landscape-of-radiation-treated-human-prostate-cancer-analysis-of-a-prospective-tissue-cohort
#11
Simon P Keam, Franco Caramia, Cristina Gamell, Piotr J Paul, Gisela Mir Arnau, Paul J Neeson, Scott G Williams, Ygal Haupt
PURPOSE: The resistance of prostate cancer to radiation therapy (RT) is a significant clinical issue and still largely unable to be guided by patient-specific molecular characteristics. The present study describes the gene expression changes induced in response to RT in human prostate tissue obtained from a prospective tissue acquisition study designed for radiobiology research. METHODS AND MATERIALS: A prospective cohort of 5 men with intermediate-risk and clinically localized tumors were treated with high-dose-rate brachytherapy with 2 × 10-Gy fractions...
September 25, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29046984/spatial-tracking-of-targeted-prostate-biopsy-locations-moving-towards-effective-focal-partial-prostate-gland-ablation-with-improved-treatment-planning
#12
REVIEW
Steven Sidelsky, Shaan Setia, Srinivas Vourganti
The ability to selectively characterize, localize, and predict the specific areas of the prostate gland which harbor the worst biologic behavior is requisite for optimal prostate cancer therapy, especially in the emerging field of partial prostate gland ablation (focal therapy). In this manuscript, we highlight contemporary techniques in target tracking for focal therapy planning. Multiparametric magnetic resonance imaging has emerged as a dominant strategy to localize biopsy sites most likely to contain high-grade lesions...
October 18, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/29031683/-focal-therapies-an-alternative-option-for-low-risk-prostate-cancer-management
#13
Souhil Lebdai, Luca Lunelli, Pierre Bigot, Olivier Cussenot, Abdel-Rahmene Azzouzi
Recommended options for low-risk prostate cancer treatment are active surveillance, radical treatments or watchful waiting. Focal therapies are currently assessed for low risk prostate cancer treatment. Focal therapies can be performed in research protocols. Oncologic results of these focal treatments are encouraging and show excellent tolerance with few complications. Radical treatments are still possible after focal therapies failure. Focal therapies are a possible solution to over-treatment issue of low risk prostate cancers...
October 11, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29024195/identification-of-zinc-finger-protein-of-the-cerebellum-5-as-a-survival-factor-of-prostate-and-colorectal-cancer-cells
#14
Reiko Satow, Shota Inagaki, Chiaki Kato, Makoto Shimozawa, Kiyoko Fukami
Identification of specific drug targets is very important for cancer therapy. We recently identified zinc finger protein of the cerebellum 5 (ZIC5) as a factor that promotes melanoma aggressiveness by platelet-derived growth factor D (PDGFD) expression. However, its roles in other cancer types remain largely unknown. Here we determined the roles of ZIC5 in prostate cancer (PCa) and colorectal cancer (CRC) cells. Results showed that ZIC5 was highly expressed in CRC and dedifferentiated PCa tissues, whereas little expression was observed in relevant normal tissues...
October 10, 2017: Cancer Science
https://www.readbyqxmd.com/read/28961847/intratumoural-evolutionary-landscape-of-high-risk-prostate-cancer-the-progeny-study-of-genomic-and-immune-parameters
#15
M Linch, G Goh, C Hiley, Y Shanmugabavan, N McGranahan, A Rowan, Y N S Wong, H King, A Furness, A Freeman, J Linares, A Akarca, J Herrero, R Rosenthal, N Harder, G Schmidt, G A Wilson, N J Birkbak, R Mitter, S Dentro, P Cathcart, M Arya, E Johnston, R Scott, M Hung, M Emberton, G Attard, Z Szallasi, S Punwani, S A Quezada, T Marafioti, M Gerlinger, H U Ahmed, C Swanton
Background: Intratumoural heterogeneity (ITH) is well recognised in prostate cancer (PC), but its role in high-risk disease is uncertain. A prospective, single-arm, translational study using targeted multiregion prostate biopsies was carried out to study genomic and T-cell ITH in clinically high-risk PC aiming to identify drivers and potential therapeutic strategies. Patients and methods: Forty-nine men with elevated prostate-specific antigen and multiparametric-magnetic resonance imaging detected PC underwent image-guided multiregion transperineal biopsy...
October 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28961099/mri-guided-robotically-assisted-focal-laser-ablation-of-the-prostate-using-canine-cadavers
#16
Yue Chen, Sheng Xu, Alexander Squires, Reza Seifabadi, Ismail Baris Turkbey, Peter Pinto, Peter Choyke, Bradford Wood, Zion Tsz Ho Tse
OBJECTIVE: A Magnetic Resonance Imaging (MRI)-conditional needle guidance robot is developed to enhance MRI-guided Focal Laser Ablation (FLA) therapy in patients with focal prostate cancer. METHODS: Inspired by the workflow of the manual FLA therapy, we developed an MRI-conditional robot with two degrees of freedom (DoF) to provide the guidance for laser ablation catheter. This robot is powered by pneumatic turbine motors and encoded with the custom-designed optical encoder...
September 26, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28951759/focal-therapy-for-prostate-cancer-the-technical-challenges
#17
REVIEW
Annette Haworth, Scott Williams
Focal therapy for prostate cancer has been proposed as an alternative treatment to whole gland therapy, offering the opportunity for tumor dose escalation and/or reduced toxicity. Brachytherapy, either low-dose-rate or high-dose-rate, provides an ideal approach, offering both precision in dose delivery and opportunity for a highly conformal, non-uniform dose distribution. Whilst multiple consensus documents have published clinical guidelines for patient selection, there are insufficient data to provide clear guidelines on target volume delineation, treatment planning margins, treatment planning approaches, and many other technical issues that should be considered before implementing a focal brachytherapy program...
August 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28895571/corrigendum-can-we-deliver-randomized-trials-of-focal-therapy-in-prostate-cancer
#18
Hashim U Ahmed, Viktor Berge, David Bottomley, William Cross, Rakesh Heer, Richard Kaplan, Tom Leslie, Chris Parker, Clare Relton, Richard Stephens, Matthew R Sydes, Lindsay Turnbull, Jan van der Meulen, Andrew Vickers, Timothy Wilt, Mark Emberton
This corrects the article DOI: 10.1038/nrclinonc.2014.44.
September 12, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28893523/-therapeutic-innovations-in-urology-for-localized-prostate-cancer
#19
REVIEW
L Cormier, G Créhange
The management of localized prostate cancer has been marked over these last years by the importance of Active Surveillance for low risk forms. Indeed, the long follow-up and the quality of the results are now sufficient to offer this option even in relatively young people. However, the question is still under investigation concerning intermediate risk of prostate cancer. Patients' selection and follow-up management are of very high importance. Another major evolution is the robotic assistance for radical prostatectomy...
October 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28890087/-therapeutic-innovations-in-radiation-oncology-for-localized-prostate-cancer
#20
REVIEW
G Créhange, L Cormier
Intensity-modulated radiation therapy, image-guided radiation therapy with fiducial markers and prostate brachytherapy allow the delivery of dose escalation for localized prostate cancer with very low rates of long-term toxicity and sequelae. Nowadays, modern radiotherapy techniques make it possible to shorten treatment time with hypofractionation, to better protect surrounding healthy tissues and to escalate the dose even further. Advances in radiotherapy are closely linked to advances in magnetic resonance imaging (MRI) and/or PET imaging...
October 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
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