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https://www.readbyqxmd.com/read/28098905/cripto-1-promotes-epithelial-mesenchymal-transition-in-prostate-cancer-via-wnt-%C3%AE-catenin-signaling
#1
Yan Liu, Zhenbang Qin, Kuo Yang, Ranlu Liu, Yong Xu
The Cripto-1 (CR-1) derived EGF-CFC family was overexpressed in tumor development enhancing proliferation, epithelial-mesenchymal transition (EMT) and migration of tumor cells. However, correlation between CR-1 and prostate cancer (PCa) remains still unclear. In the present study, we proved that CR-1 was expressed in PCa and its function was in the progression of PCa. Compared with benign prostatic hyperplasia (BPH) tissues, we confirmed that PCa tissues had high expression of CR-1 by immunohistochemistry and statistical data showed that CR-1 promoted properties of EMT in PCa tissues, including the downregulation of the cell adhesion molecules β-catenin (membrane) and E-cadherin while upregulating transcription factors β-catenin...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098061/prostate-cancer-immunotherapy-particularly-in-combination-with-androgen-deprivation-or-radiation-treatment-customized-pharmacogenomic-approaches-to-overcome-immunotherapy-cancer-resistance
#2
REVIEW
C Alberti
Conventional therapeutic approaches for advanced prostate cancer - such as androgen deprivation, chemotherapy, radiation - come up often against lack of effectiveness because of possible arising of correlative cancer cell resistance and/or inadequate anti-tumor immune conditions. Whence the timeliness of resorting to immune-based treatment strategies including either therapeutic vaccination-based active immunotherapy or anti-tumor monoclonal antibody-mediated passive immunotherapy. Particularly attractive, as for research studies and clinical applications, results to be the cytotoxic T-lymphocyte check point blockade by the use of anti-CTLA-4 and PD-1 monoclonal antibodies, particularly when combined with androgen deprivation therapy or radiation...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28097317/surrogate-end-points-for-all-cause-mortality-in-men-with-localized-unfavorable-risk-prostate-cancer-treated-with-radiation-therapy-vs-radiation-therapy-plus-androgen-deprivation-therapy-a-secondary-analysis-of-a-randomized-clinical-trial
#3
Trevor J Royce, Ming-Hui Chen, Jing Wu, Marian Loffredo, Andrew A Renshaw, Philip W Kantoff, Anthony V D'Amico
Importance: Several surrogates for prostate cancer-specific mortality satisfying the Prentice criteria exist, but whether these are surrogates for all-cause mortality, and how their performance compares, is unknown. Objective: To ascertain and compare the performance of 4 candidate surrogates (prostate-specific antigen [PSA] failure, PSA nadir >0.5 ng/mL, PSA doubling time <9 months, and interval to PSA failure <30 months) for all-cause mortality using the proportion of treatment-effect metric...
January 12, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28096932/contemporary-agents-in-the-management-of-metastatic-castration-resistant-prostate-cancer
#4
REVIEW
Anil Kapoor, Christopher Wu, Bobby Shayegan, Adrian P Rybak
Docetaxel-based chemotherapy has been the standard of care for metastatic castration-resistant prostate cancer (mCRPC) since 2004. Over the past few years, there has been a significant paradigm shift in the treatment landscape of this disease. A deeper understanding of prostate cancer biology, along with the development of novel agents has created hope towards treating chemotherapy-naïve and resistant disease. Following the implementation of docetaxel as the first-line therapy for mCRPC, five novel therapies have demonstrated survival benefit in mCRPC...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096923/role-of-neutrophil-to-lymphocyte-ratio-in-prediction-of-gleason-score-upgrading-and-disease-upstaging-in-low-risk-prostate-cancer-patients-eligible-for-active-surveillance
#5
Mehmet Ilker Gokce, Semih Tangal, Nurullah Hamidi, Evren Suer, Muhammed Arif Ibis, Yasar Beduk
INTRODUCTION: Active surveillance (AS) is an option for management of low-risk prostate cancer (PCa). However, grade and stage progression is an important consideration. Neutrophil-to-lymphocyte ratio (NLR) is a useful marker of cancer-related inflammation. In this study, we aimed to identify the roles of neutrophil count (NC), lymphocyte count (LC), and NLR to predict Gleason score (GS) upgrading, disease upstaging, and biochemical recurrence rates (BCR) in low-risk PCa patients. METHODS: We retrospectively evaluated data of 210 low-risk PCa patients eligible for AS, but who underwent radical prostatectomy...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096917/assessment-of-histopathological-features-of-needle-biopsy-in-recurrent-prostate-cancer-following-salvage-high-intensity-focused-ultrasound
#6
Michele Billia, Khurram M Siddiqui, Susanne Chan, Fan Li, Ali Al-Zahrani, Jose A Gomez, Joseph L Chin
INTRODUCTION: Local recurrence of prostate cancer (PCa) following radiotherapy may be treated with curative intent using salvage high-intensity focused ultrasound (s-HIFU). The interpretation of needle core biopsy specimens following s-HIFU is a daunting task, even for experienced pathologists. We describe various histopathological features encountered in biopsy specimens following whole-gland s-HIFU in one of the largest descriptive studies to date. METHODS: Fifty-five patients with biopsy-proven localized radio-recurrent PCa underwent s-HIFU and transrectal ultrasound (TRUS)-guided prostatic needle biopsies at 180 days post-treatment...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096916/an-audit-of-referral-and-treatment-patterns-of-high-risk-prostate-cancer-patients-in-alberta
#7
Majed Alghamdi, Amandeep Taggar, Derek Tilley, Marc Kerba, Xanthoula Kostaras, Geoffrey Gotto, Michael Sia
INTRODUCTION: We aimed to determine the impact of clinical practice guidelines (CPG) on rates of radiation oncologist (RO) referral, androgen-deprivation therapy (ADT), radiation therapy (RT), and radical prostatectomy (RP) in patients with high-risk prostate cancer (HR-PCa). METHODS: All men >18 years, diagnosed with PCa in 2005 and 2012 were identified from the Alberta Cancer Registry. Patient age, aggregated clinical risk group (ACRG) score, Gleason score (GS), pre-treatment prostate-specific antigen (PSA), RO referral, and treatment received were extracted from electronic medical records...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28096182/treatment-of-locally-advanced-prostate-cancer-stage-t3
#8
Yoshiyasu Amiya, Yasutaka Yamada, Masahiro Sugiura, Makoto Sasaki, Takayuki Shima, Noriyuki Suzuki, Hiroomi Nakatsu, Shino Murakami, Jun Shimazaki
OBJECTIVE: Formerly, locally advanced prostate cancer exhibited poorly prognosis. In the late 1990s, new surgical and radiation technologies were introduced in combination with androgen deprivation. To evaluate respective strategies, outcomes were examined. PATIENTS AND METHODS: Between 2001 and 2010, 224 patients with T3N0M0 (10.9% of all prostate cancer cases) were treated with prostatectomy, external beam radiation therapy with/without androgen deprivation or hormone alone...
January 17, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28095874/clinicopathological-study-of-9-cases-of-prostate-cancer-involving-the-rectal-wall
#9
Tao Tang, Zhengduo Yang, Dan Zhang, Jie Qu, Guang Liu, Shiwu Zhang
BACKGROUND: Prostate cancer involving the rectal wall is rare and may lead to diagnostic pitfalls. CASE PRESENTATION: Out of 9504 patients with rectal tumors between January 2003 and January 2015, 9 patients (elderly with a mean age of 74 years) with prostate cancer involving the rectal wall were clinically misdiagnosed with rectal cancer. The lesions were located in the rectum, and included 3 circumferential rectal masses, 1 ulceration lesion, 1 crater-like mass, and 4 protruding lesions...
January 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28095711/systemic-alkalinisation-delays-prostate-cancer-cell-progression-in-tramp-mice
#10
Simonetta Astigiano, Andrea Puglisi, Luca Mastracci, Stefano Fais, Ottavia Barbieri
The microenvironment of solid tumours is extremely acidic and this condition arises since the precancerous stage. This acidic milieu could therefore provide a useful target for both prophylactic and therapeutic approaches. In TRAMP transgenic mice, an in vivo model of prostate adenocarcinoma (AC), oral administration of alkaline water was devoid of unwanted side effects, and when started from an early age was as effective as NaHCO3 in significantly delaying tumour progression, while when started when prostate tumours were already present, a nonstatistically significant trend in the same direction was detected...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28094250/end-of-radiation-psa-as-a-novel-prognostic-factor-in-patients-undergoing-definitive-radiation-and-androgen-deprivation-therapy-for-prostate-cancer
#11
A K Narang, J Trieu, N Radwan, A Ram, S P Robertson, P He, C Gergis, E Griffith, H Singh, T A DeWeese, S Honig, A Annadanam, S Greco, C DeVille, T McNutt, T L DeWeese, D Y Song, P T Tran
BACKGROUND: In men undergoing definitive radiation for prostate cancer, it is unclear whether early biochemical response can provide additional prognostic value beyond pre-treatment risk stratification. METHODS: Prostate cancer patients consecutively treated with definitive radiation at our institution by a single provider from 1993 to 2006 and who had an end-of-radiation (EOR) PSA (n=688, median follow-up 11.2 years). We analyzed the association of an EOR PSA level, obtained during the last week of radiation, with survival outcomes...
January 17, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28093890/long-term-follow-up-for-treatment-of-erectile-dysfunction-post-radical-prostatectomy-using-nerve-grafts-and-end-to-side-somatic-autonomic-neurorraphy-a-new-technique
#12
José Carlos Souza Trindade, Fausto Viterbo, André Petean Trindade, Wagner José Fávaro, José Carlos Souza Trindade Filho
: Radical prostatectomy (RP) for prostate cancer treatment, although effective, can lead to severe erectile dysfunction. This study describes a new technique, which aims to reestablish the nerve stimulus in penile erection by two sural nerve graft bridges bilaterally, using the end to side neurorraphy. The first bridge is between femoral nerve and dorsal nerve of penis and the second, is between the femoral nerve and the interior of the corpus cavernosum. In this neurorraphy the endings of the newly formed fibres, generated by the femoral nerve, release acetylcholine inside the cavernous bodies, beginning the erection mechanism...
January 17, 2017: BJU International
https://www.readbyqxmd.com/read/28093791/local-therapy-improves-overall-survival-in-patients-with-newly-diagnosed-metastatic-prostate-cancer
#13
Rahul R Parikh, John Byun, Sharad Goyal, Isaac Yi Kim
BACKGROUND: The role of local therapy, in the form of radiation therapy (RT) or radical prostatectomy(RP), and its association on outcomes is not well established in patients with metastatic prostate cancer. METHODS: Using the National Cancer Database (NCDB), we evaluated patterns of care and outcomes among patients diagnosed with metastatic prostate cancer from 2004 to 2013 treated with local therapy (RP, intensity-modulated radiation therapy [IMRT], or 2D/3D-conformal radiation therapy [CRT])...
January 17, 2017: Prostate
https://www.readbyqxmd.com/read/28093703/african-american-and-caribbean-born-men-s-perceptions-of-prostate-cancer-fear-and-facilitators-for-screening-behavior-a-pilot-study
#14
Ewan K Cobran, Jori N Hall, William D Aiken
This study describes how a concurrent exploratory mixed methodology (CEMM) approach was used to investigate perceptions of prostate cancer (CaP) fear and facilitators of screening behavior in African-American (AA) and Caribbean-born (CB) black men for instrument development. A quantitative paper-based questionnaire was modified, adapted, and administered to participants from the Personal Integrative Model of Prostate Cancer Disparity Survey and the Powe Fatalism Inventory. Focus groups and individual interviews were conducted and analyzed using thematic analysis...
January 16, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28093012/male-coping-through-a-long-term-cancer-trajectory-secondary-outcomes-from-a-rtc-examining-the-effect-of-a-multidisciplinary-rehabilitation-program-repca-among-radiated-men-with-prostate-cancer
#15
Karin B Dieperink, Christoffer Johansen, Steinbjørn Hansen, Lis Wagner, Klaus K Andersen, Lisbeth R Minet, Olfred Hansen
BACKGROUND: The objective of this study was to examine if rehabilitation influenced self-reported male coping styles during and up to three years after treatment with radiotherapy for prostate cancer. MATERIALS AND METHODS: In a single-center oncology unit in Odense, Denmark, 161 prostate cancer patients treated with radiotherapy and androgen deprivation therapy were included in a randomized controlled trial from 2010 to 2012. The trial examined the effect of a multidisciplinary rehabilitation program within six months of treatment consisting of two nursing counseling sessions and two instructive sessions with a physical therapist (n = 79), or standard care (n = 82)...
January 17, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28092963/mathematical-modeling-of-continuous-and-intermittent-androgen-suppression-for-the-treatment-of-advanced-prostate-cancer
#16
Alacia M Voth, John G Alford, Edward W Swim
Prostate cancer is one of the most prevalent types of cancer among men. It is stimulated by the androgens, or male sexual hormones, which circulate in the blood and diffuse into the tissue where they stimulate the prostate tumor to grow. One of the most important treatments for advanced prostate cancer has become androgen deprivation therapy (ADT). In this paper we present three different models of ADT for prostate cancer: continuous androgen suppression (CAS), intermittent androgen suppression (IAS), and periodic androgen suppression...
June 1, 2017: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/28092770/magnolin-inhibits-prostate-cancer-cell-growth-in-vitro-and-in-vivo
#17
Yeqing Huang, Xiangyu Zou, Xiaowen Zhang, Feng Wang, Weidong Zhu, Guangyuan Zhang, Jun Xiao, Ming Chen
BACKGROUND: Magnolin is the most active ingredient in the herb Magnolia fargesii, which has been traditionally used in oriental medicine to treat headaches and nasal congestion. Recent researches demonstrate that Magnolin inhibits cancer cell migration and invasion. MATERIALS AND METHODS: This study used cell culture and the BALB/c nu/nu mouse xenograft model to investigate whether or not magnolin can inhibit the growth of PC3 and Du145 prostate cancer cells. MTT assay and flow cytometry were performed to estimate the proliferation, cycle, and apoptosis of the cells in vitro...
January 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28091582/androgen-mediated-regulation-of-endoplasmic-reticulum-associated-degradation-and-its-effects-on-prostate-cancer
#18
Yalcin Erzurumlu, Petek Ballar
The endoplasmic reticulum (ER) comprises thirty percent of the newly translated proteins in eukaryotic cells. The quality control mechanism within the ER distinguishes between properly and improperly folded proteins and ensures that unwanted proteins are retained in the ER and subsequently degraded through ER-associated degradation (ERAD). Besides cleaning of misfolded proteins ERAD is also important for physiological processes by regulating the abundance of normal proteins of the ER. Thus it is important to unreveal the regulation patterns of ERAD...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28089723/cost-effectiveness-of-the-decipher-genomic-classifier-to-guide-individualized-decisions-for-early-radiation-therapy-after-prostatectomy-for-prostate-cancer
#19
Jennifer M Lobo, Daniel M Trifiletti, Vanessa N Sturz, Adam P Dicker, Christine Buerki, Elai Davicioni, Matthew R Cooperberg, R Jeffrey Karnes, Robert B Jenkins, Robert B Den, Timothy N Showalter
BACKGROUND: Controversy exists regarding the effectiveness of early adjuvant versus salvage radiation therapy after prostatectomy for prostate cancer. Estimates of prostate cancer progression from the Decipher genomic classifier (GC) could guide informed decision-making and improve the outcomes for patients. MATERIALS AND METHODS: We developed a Markov model to compare the costs and quality-adjusted life years (QALYs) associated with GC-based treatment decisions regarding adjuvant therapy after prostatectomy with those of 2 control strategies: usual care (determined from patterns of care studies) and the alternative of 100% adjuvant radiation therapy...
August 17, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28089602/particle-swarm-optimizer-for-weighting-factor-selection-in-intensity-modulated-radiation-therapy-optimization-algorithms
#20
Jie Yang, Pengcheng Zhang, Liyuan Zhang, Huazhong Shu, Baosheng Li, Zhiguo Gui
In inverse treatment planning of intensity-modulated radiation therapy (IMRT), the objective function is typically the sum of the weighted sub-scores, where the weights indicate the importance of the sub-scores. To obtain a high-quality treatment plan, the planner manually adjusts the objective weights using a trial-and-error procedure until an acceptable plan is reached. In this work, a new particle swarm optimization (PSO) method which can adjust the weighting factors automatically was investigated to overcome the requirement of manual adjustment, thereby reducing the workload of the human planner and contributing to the development of a fully automated planning process...
January 12, 2017: Physica Medica: PM
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