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Locally advanced prostate cancer

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https://www.readbyqxmd.com/read/28917248/stereotactic-body-radiation-therapy-for-prostate-cancer-a-review
#1
Waqar Haque, E Brian Butler, Bin S Teh
Prostate cancer can be managed with external beam radiation therapy, delivered with either protons or photons, brachytherapy, surgery, or active surveillance. Advances in imaging and radiation therapy delivery have allowed treatment of prostate cancer using ultra-hypofractionated radiation therapy with a high dose per fraction using a technique called stereotactic body radiation therapy (SBRT). While no randomized trials have compared the efficacy of SBRT to conventionally fractionated radiation therapy (CFRT), numerous prospective trials and retrospective reviews have demonstrated the safety and efficacy of SBRT for localized prostate cancer, used either definitively or as a boost along with CFRT...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28910812/what-can-be-expected-from-prostate-cancer-biomarkers-a-clinical-perspective
#2
Piotr Zapała, Bartosz Dybowski, Sławomir Poletajew, Piotr Radziszewski
Along with significant advances in prostate cancer biology research, we also observe the rapid development of modern diagnostic tests. New biomarkers are derived to detect disease while it is organ-confined to stratify the risk and to aid clinical decision-making. Majority of these tools have already been validated clinically, but only a few have received premarket clearance and administration approval. Superiority of novel tests is visible not only in improved detection accuracy but predominantly in the assessment of tumour aggressiveness and selection of patients eligible for conservative management...
September 15, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28904399/semaphorin-3%C3%A2-c-drives-epithelial-to-mesenchymal-transition-invasiveness-and-stem-like-characteristics-in-prostate-cells
#3
Kevin J Tam, Daniel H F Hui, Wilson W Lee, Mingshu Dong, Tabitha Tombe, Ivy Z F Jiao, Shahram Khosravi, Ario Takeuchi, James W Peacock, Larissa Ivanova, Igor Moskalev, Martin E Gleave, Ralph Buttyan, Michael E Cox, Christopher J Ong
Prostate cancer (PCa) is among the most commonly-occurring cancers worldwide and a leader in cancer-related deaths. Local non-invasive PCa is highly treatable but limited treatment options exist for those with locally-advanced and metastatic forms of the disease underscoring the need to identify mechanisms mediating PCa progression. The semaphorins are a large grouping of membrane-associated or secreted signalling proteins whose normal roles reside in embryogenesis and neuronal development. In this context, semaphorins help establish chemotactic gradients and direct cell movement...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28902490/direct-intra-nuclear-anticancer-drug-delivery-via-polydimethylsiloxane-nanoparticles-in-vitro-and-in-vivo-xenograft-studies
#4
Gargi Mishra, Souryadeep Bhattacharyya, Vipul Bhatia, Bushra Ateeq, Ashutosh Sharma, Sri Sivakumar
Direct delivery of anticancer drugs to nuclei of tumor cells is required to enhance the therapeutic activity which can be achieved by a nuclear localization signal (NLS) or peptide-decorated nano-vehicles. However, NLS/peptide-based approaches may create certain undesirable immunological responses and the utilized synthesis processes are generally labor intensive. To this end, we report ligand-free, enhanced intra-nuclear delivery of Doxorubicin (Dox) to different cancer cells via porous polydimethylsiloxane (PDMS) nanoparticles (NPs)...
September 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28901630/role-of-robot-assisted-radical-prostatectomy-in-locally-advanced-prostate-cancer
#5
REVIEW
Takashi Saika, Noriyoshi Miura, Tetsuya Fukumoto, Yutaka Yanagihara, Yuki Miyauchi, Tadahiko Kikugawa
Locally advanced prostate cancer is regarded as a very high-risk disease with a poor prognosis. Although there is no definitive consensus on the definition of locally advanced prostate cancer, radical prostatectomy for locally advanced prostate cancer as a primary treatment or part of a multimodal therapy has been reported. Robot-assisted radical prostatectomy is currently carried out even in high-risk prostate cancer because it provides optimal outcomes. However, limited studies have assessed the role of robot-assisted radical prostatectomy in patients with locally advanced prostate cancer...
September 13, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28900507/targeting-micrornas-in-prostate-cancer-radiotherapy
#6
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/28894467/racial-and-socioeconomic-disparities-are-more-pronounced-in-inflammatory-breast-cancer-than-other-breast-cancers
#7
Ryan A Denu, John M Hampton, Adam Currey, Roger T Anderson, Rosemary D Cress, Steven T Fleming, Joseph Lipscomb, Xiao-Cheng Wu, J Frank Wilson, Amy Trentham-Dietz
Inflammatory breast cancer (IBC) is a rare yet aggressive form of breast cancer. We examined differences in patient demographics and outcomes in IBC compared to locally advanced breast cancer (LABC) and all other breast cancer patients from the Breast and Prostate Cancer Data Quality and Patterns of Care Study (POC-BP), containing information from cancer registries in seven states. Out of 7,624 cases of invasive carcinoma, IBC and LABC accounted for 2.2% (N = 170) and 4.9% (N = 375), respectively. IBC patients were more likely to have a higher number (P = 0...
2017: Journal of Cancer Epidemiology
https://www.readbyqxmd.com/read/28891846/quality-of-life-in-rectal-cancer-patients-after-chemoradiation-watch-and-wait-policy-versus-standard-resection-a-matched-controlled-study
#8
Britt J P Hupkens, Milou H Martens, Jan H Stoot, Maaike Berbee, Jarno Melenhorst, Regina G Beets-Tan, Geerard L Beets, Stéphanie O Breukink
BACKGROUND: Fifteen to twenty percent of patients with locally advanced rectal cancer have a clinical complete response after chemoradiation therapy. These patients can be offered nonoperative organ-preserving treatment, the so-called watch-and-wait policy. The main goal of this watch-and-wait policy is an anticipated improved quality of life and functional outcome in comparison with a total mesorectal excision, while maintaining a good oncological outcome. OBJECTIVE: The aim of this study was to compare the quality of life of watch-and-wait patients with a matched-controlled group of patients who underwent chemoradiation and surgery (total mesorectal excision group)...
October 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28890087/-therapeutic-innovations-in-radiation-oncology-for-localized-prostate-cancer
#9
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...
September 7, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28882777/secondary-urethral-malignancies-following-prostate-brachytherapy
#10
Shree Agrawal, John M Lacy, Herman Bagga, Kenneth W Angermeier, Jay Ciezki, Rahul D Tendulkar, Chandana A Reddy, Hadley M Wood
OBJECTIVE: To understand urethral secondary malignancies among patients treated with brachytherapy (BRT) for primary prostate cancer. METHODS: Institutional retrospective review identified 13 patients evaluated from 2003-2014 with urethral cancer and prior history of BRT monotherapy for prostate cancer. All patients were biochemically free of their primary disease and developed histologically distinct RASM from primary tumor via pathologic confirmation. BRT characteristics, patient age, presentation, staging work-up and clinical course were evaluated...
September 4, 2017: Urology
https://www.readbyqxmd.com/read/28881737/galeterone-and-its-analogs-inhibit-mnk-eif4e-axis-synergize-with-gemcitabine-impede-pancreatic-cancer-cell-migration-invasion-and-proliferation-and-inhibit-tumor-growth-in-mice
#11
Andrew K Kwegyir-Afful, Francis N Murigi, Puranik Purushottamachar, Vidya P Ramamurthy, Marlena S Martin, Vincent C O Njar
Survival rate for pancreatic cancer (pancreatic ductal adenocarcinoma, PDAC) is poor, with about 80% of patients presenting with the metastatic disease. Gemcitabine, the standard chemotherapeutic agent for locally advanced and metastatic PDAC has limited efficacy, attributed to innate/acquired resistance and activation of pro-survival pathways. The Mnk1/2-eIF4E and NF-κB signaling pathways are implicated in PDAC disease progression/metastasis and also associated with gemcitabine-induced resistance in PDAC...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28878598/bladder-neck-contracture-following-radical-retropubic-versus-robotic-assisted-laparoscopic-prostatectomy
#12
Benjamin L Spector, Nathan A Brooks, Michael E Strigenz, James A Brown
INTRODUCTION: Radical retropubic prostatectomy (RRP) and robotic-assisted laparoscopic prostatectomy (RALP) are co-standard surgical therapies for localized prostatic adenocarcinoma. These surgical modalities offer similar outcomes; however, lower rate of bladder neck contracture (BNC) is amongst the touted benefits of RALP. The differences between approaches are largely elucidated through multiple-surgeon comparisons, which can be biased by differential experience and practice patterns...
August 2017: Current Urology
https://www.readbyqxmd.com/read/28862047/new-surgical-approaches-for-clinically-high-risk-or-metastatic-prostate-cancer
#13
Paolo Dell'Oglio, Armando Stabile, Giorgio Gandaglia, Emanuele Zaffuto, Nicola Fossati, Marco Bandini, Nazareno Suardi, Pierre I Karakiewicz, Shahrokh F Shariat, Francesco Montorsi, Alberto Briganti
A considerable number of individuals with prostate cancer (PCa) still harbor locally-advanced and metastatic disease. Although such men were initially not considered eligible for local treatment, the role of radical prostatectomy (RP) has been recently reassessed. Areas covered: This review analyses currently published evidences regarding new surgical approaches for clinically high-risk PCa individuals, as well as the role of cytoreductive surgery in the metastatic setting. The role of robot-assisted radical prostatectomy (RARP) and extended pelvic lymph node dissection will be evaluated with regards to perioperative, oncologic, as well as functional outcomes...
September 11, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28853102/an-up-to-date-meta-analysis-of-coffee-consumption-and-risk-of-prostate-cancer
#14
Jiadong Xia, Jie Chen, Jian-Xin Xue, Jie Yang, Zeng-Jun Wang
PURPOSE: Results of the association between coffee consumption (CC) and the risk of prostate cancer (PC) are still controversy. Based on published relevant studies, we conducted an up-to-date meta-analysis to investigatethis issue. MATERIALS AND METHODS: The protocol used in this article is in accordance with the PRISMA checklist. Eligible studies were screened and retrieved by using PUBMED and EMBASE as well as manual review of references up to July 2016. We calculated the pooled relative risk (RR) with 95% confidence interval (CI) with random effect models...
August 29, 2017: Urology Journal
https://www.readbyqxmd.com/read/28851376/detection-rate-of-prostate-cancer-following-biopsy-among-the-northern-han-chinese-population-a-single-center-retrospective-study-of-1022-cases
#15
Yong Jia, Lei-Yi Zhu, Yu-Xin Xian, Xiao-Qing Sun, Jian-Gang Gao, Xin-Hong Zhang, Si-Chuan Hou, Chang-Cun Zhang, Zhao-Xu Liu
BACKGROUND: Prostate cancer is known to have ethnic and regional differences. The study aimed to clinically evaluate the detection rate of prostate cancer on transrectal ultrasonography (TRUS)-guided prostate biopsy and analyze its characteristics among the northern Han Chinese population at a single center. METHODS: Between October 2009 and September 2016, a total of 1027 Chinese men, who had undergone TRUS-guided prostate biopsy at Qingdao Municipal Hospital, were retrospectively analyzed...
August 29, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28843372/multisource-rotating-shield-brachytherapy-apparatus-for-prostate-cancer
#16
Hossein Dadkhah, Karolyn M Hopfensperger, Yusung Kim, Xiaodong Wu, Ryan T Flynn
PURPOSE: Our purpose is to present a novel multisource rotating shield brachytherapy (RSBT) apparatus for the simultaneous precise angular and linear positioning of partially shielded (153)Gd brachytherapy sources in interstitial needles for the treatment of locally advanced prostate cancer. It is designed to lower the dose to nearby healthy tissues, the urethra in particular, relative to conventional high-dose-rate brachytherapy techniques. METHODS AND MATERIALS: Following needle implantation through the patient template, an angular drive mechanism is docked to the patient template...
June 20, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28836508/circulating-tumor-cells-and-their-role-in-prostate-cancer
#17
REVIEW
Moritz Maas, Miriam Hegemann, Steffen Rausch, Jens Bedke, Arnulf Stenzl, Tilman Todenhöfer
Circulating tumor cells (CTC) have become an important biomarker in patients with advanced prostate cancer. CTC count has been demonstrated to be a prognostic factor for overall survival in patients with metastatic castration-resistant prostate cancer (mCRPC). In localized prostate cancer, a clear correlation between CTC counts and clinicopathological risk parameters and outcome has not been observed. Currently, the focus of research is shifting from CTC enumeration towards molecular characterization of CTC leading to the discovery of markers predicting treatment response...
August 22, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28825924/radical-prostatectomy-in-oligometastatic-prostate-cancer
#18
Philipp Mandel, Thomas Steuber, Markus Graefen
PURPOSE OF REVIEW: Although cytoreductive surgery is accompanied with prolonged survival in many other malignancies in a metastatic stage, its role in oligometastatic prostate cancer is unclear. RECENT FINDINGS: Radical prostatectomy (RP) in patients with oligometastatic prostate cancer seems to be feasible. Perioperative complication rates vary between 20 and 50% (Clavien 1-3) and are comparable to patients with locally advanced tumors. Postoperative functional outcomes (urinary continence and erectile function) can be slightly worse than in patients with locally advanced tumor...
August 18, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28821268/hypo-fractionated-sbrt-for-localized-prostate-cancer-a-german-bi-center-single-treatment-group-feasibility-trial
#19
Ping Jiang, Katja Krockenberger, Reinhard Vonthein, Jane Tereszczuk, Arne Schreiber, Sebastian Liebau, Stefan Huttenlocher, Detlef Imhoff, Panagiotis Balermpas, Christian Keller, Kathrin Dellas, Rene Baumann, Claus Rödel, Guido Hildebrandt, Klaus-Peter Jünemann, Alex S Merseburger, Alan Katz, Andreas Ziegler, Oliver Blanck, Jürgen Dunst
BACKGROUND: For prostate cancer treatment, treatment options with minimal side effects are desired. External beam radiation therapy (EBRT) is non-invasive, standard of care and delivered in either conventional fractionation over 8 weeks or with moderate hypo-fractionation over about 5 weeks. Recent advances in radiotherapy technology have made extreme hypo-fractionated stereotactic body radiation therapy (SBRT) of prostate cancer feasible, which has not yet been introduced as a standard treatment method in Germany...
August 18, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28816169/long-term-results-of-a-randomized-trial-comparing-iridium-implant-plus-external-beam-radiation-therapy-with-external-beam-radiation-therapy-alone-in-node-negative-locally-advanced-cancer-of-the-prostate
#20
RANDOMIZED CONTROLLED TRIAL
Ian S Dayes, Sameer Parpia, Jaclyn Gilbert, Jim A Julian, Ian R Davis, Mark N Levine, Jinka Sathya
PURPOSE: To determine the impact on long-term survival from the addition of brachytherapy to external beam radiation therapy (EBRT) in patients with prostate cancer. METHODS AND MATERIALS: Between 1992 and 1997, 104 men with cT2-3, surgically staged node-negative prostate cancer were randomized to receive either EBRT (40 Gy/20 fractions) with iridium implant (35 Gy/48 hours) or EBRT alone (66 Gy/33 fractions) to the prostate. According to T stage, Gleason score, and prostate-specific antigen level, 60% of patients had high-risk disease...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
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