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https://www.readbyqxmd.com/read/28735201/ultrasound-elastography-of-the-prostate-using-an-unconstrained-modulus-reconstruction-technique-a-pilot-clinical-study
#1
REVIEW
Seyed Reza Mousavi, Hassan Rivaz, Gregory J Czarnota, Abbas Samani, Ali Sadeghi-Naini
A novel full-inversion-based technique for quantitative ultrasound elastography was investigated in a pilot clinical study on five patients for non-invasive detection and localization of prostate cancer and quantification of its extent. Conventional-frequency ultrasound images and radiofrequency (RF) data (~5 MHz) were collected during mechanical stimulation of the prostate using a transrectal ultrasound probe. Pre and post-compression RF data were used to construct the strain images. The Young's modulus (YM) images were subsequently reconstructed using the derived strain images and the stress distribution estimated iteratively using finite element (FE) analysis...
July 20, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28735020/pilot-study-of-prostate-cancer-angiogenesis-imaging-using-a-photoacoustic-imaging-system
#2
Akio Horiguchi, Masayuki Shinchi, Akiko Nakamura, Takatsugu Wada, Keiichi Ito, Tomohiko Asano, Hiroshi Shinmoto, Hitoshi Tsuda, Miya Ishihara
OBJECTIVES: To investigate a link between the appearance of photoacoustic imaging (PAI) and microvasculature in prostate cancer and to assess the feasibility of PAI for angiogenesis imaging in prostate cancer. METHODS: We have developed a PAI system equipped with a transrectal ultrasound (TRUS) type probe. Three patients who underwent PAI just before prostate biopsy and subsequently underwent radical prostatectomy were included. The PAI appearance was retrospectively reviewed and in each case four representative areas were selected: one with high PAI signal intensity, one with low PAI signal intensity, one peripheral to the index tumor, and one inside the index tumor...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28734841/potential-involvement-of-mi-rna-574-3p-in-progression-of-prostate-cancer-a-bioinformatic-study
#3
Naeem M Ashraf, Komal Imran, David W Kastner, Khadija Ikram, Ayesha Mushtaq, Aadil Hussain, Nadia Zeeshan
Aberrant gene expression is a hallmark of prostate cancer (PCa), the second deadliest disease affecting males worldwide. Dysregulation of miRNA has been associated with the progression of PCa, and in recent studies, miRNA 574-3p was found to be upregulated in cancerous prostate tissue. In this study, we characterize the effects of up-regulated miRNA 574-3p on gene expression in the tumor microenvironment through different bioinformatic tools such as Diana-Tools, KEGG Pathway database, and the Reactome Database...
July 19, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28734793/hardware-failure-in-patients-with-metastatic-cancer-to-the-spine
#4
Rachel Pedreira, Nancy Abu-Bonsrah, A Karim Ahmed, Rafael De la Garza-Ramos, C Rory Goodwin, Ziya L Gokaslan, Justin Sacks, Daniel M Sciubba
BACKGROUND: The spine is the most common site of skeletal metastases, affecting approximately 30% of individuals with cancer. The aim of surgical treatment for metastatic spine disease is generally palliative to address pain and/or neurologic compromise, significantly improving patients' quality of life. Patients with metastatic spine disease, however, represent a vulnerable cohort and may have comorbidities or previous treatments that impair the structural integrity of spinal hardware...
July 19, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28733706/phage-display-selection-in-vitro-characterization-and-correlative-pet-imaging-of-a-novel-her3-peptide
#5
Benjamin M Larimer, Nicholas Phelan, Eric Wehrenberg-Klee, Umar Mahmood
PURPOSE: HER3 (ERBB3) is a receptor tyrosine kinase that is implicated in treatment resistance across multiple cancers, including those of the breast, lung, and prostate. Overexpression of HER3 following targeted therapy can occur rapidly and heterogeneously both within a single lesion and across sites of metastasis, making protein quantification by biopsy highly challenging. A global, non-invasive methodology such as positron emission tomography (PET) imaging can permit serial quantification of HER3, providing a useful approach to monitor HER3 expression across the entire tumor burden both prior to and following treatment...
July 21, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28732347/histone-demethylase-jmjd2c-epigenetic-regulators-in-tumors
#6
REVIEW
Chengcheng Zhang, Zhongqi Wang, Qing Ji, Qi Li
Histone methylation is one of the major epigenetic modifications, and various histone methylases and demethylases participate in the epigenetic regulating. JMJD2C has been recently identified as one of the histone lysine demethylases. As one member of the Jumonji-C histone demethylase family, JMJD2C has the ability to demethylate tri- or di-methylated histone 3 and 2 in either K9 (lysine residue 9) or K36 (lysine residue 36) sites by an oxidative reaction, thereby affecting heterochromatin formation, genomic imprinting, X-chromosome inactivation, and transcriptional regulation of genes...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731949/cancer-screening-in-the-elderly-a-review-of-breast-colorectal-lung-and-prostate-cancer-screening
#7
Ashwin A Kotwal, Mara A Schonberg
There are relatively limited data on outcomes of screening older adults for cancer; therefore, the decision to screen older adults requires balancing the potential harms of screening and follow-up diagnostic tests with the possibility of benefit. Harms of screening can be amplified in older and frail adults and include discomfort from undergoing the test itself, anxiety, potential complications from diagnostic procedures resulting from a false-positive test, false reassurance from a false-negative test, and overdiagnosis of tumors that are of no threat and may result in overtreatment...
July 2017: Cancer Journal
https://www.readbyqxmd.com/read/28731187/isolation-and-purification-of-novel-peptides-derived-from-sepia-ink-effects-on-apoptosis-of-prostate-cancer-cell-pc%C3%A2-3
#8
Fangfang Huang, Yinwen Jing, Guofang Ding, Zuisu Yang
Novel prostate cancer therapeutics are in high demand. In order to identify potential therapeutic targets, protein from sepia ink was hydrolyzed by utilizing pepsin in an orthogonal array design. Pepsin hydrolysate (SH) obtained at optimal conditions exhibited the highest antitumor activity. Subsequently, a novel antitumor peptide, which was termed SHP, was isolated through ultrafiltration, gel filtration chromatography and reversed phase high‑performance liquid chromatography. The amino acid sequence of SHP was identified as Leu‑Lys‑Glu‑Glu‑Asn‑Arg‑Arg‑Arg‑Arg‑Asp with a molecular mass of 1371...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731148/molecular-genetics-and-targeted-therapy-of-wnt-related-human-diseases-review
#9
Masuko Katoh, Masaru Katoh
Canonical WNT signaling through Frizzled and LRP5/6 receptors is transduced to the WNT/β-catenin and WNT/stabilization of proteins (STOP) signaling cascades to regulate cell fate and proliferation, whereas non-canonical WNT signaling through Frizzled or ROR receptors is transduced to the WNT/planar cell polarity (PCP), WNT/G protein-coupled receptor (GPCR) and WNT/receptor tyrosine kinase (RTK) signaling cascades to regulate cytoskeletal dynamics and directional cell movement. WNT/β-catenin signaling cascade crosstalks with RTK/SRK and GPCR-cAMP-PKA signaling cascades to regulate β-catenin phosphorylation and β-catenin-dependent transcription...
July 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28730725/targeting-nano-drug-delivery-to-cancer-cells-using-tunable-multi-layer-silver-decorated-gold-nanorods
#10
Zeid A Nima, Ahmed M Alwbari, Vijayalakshmi Dantuluri, Rabab N Hamzah, Natasha Sra, Pooja Motwani, Konstantinos Arnaoutakis, Rebecca A Levy, Amani F Bohliqa, Dmitry Nedosekin, Vladimir P Zharov, Issam Makhoul, Alexandru S Biris
Multifunctional nanoparticles have high potential as targeting delivery vehicles for cancer chemotherapy. In this study, silver-decorated gold nanorods (AuNR\Ag) have been successfully used to deliver specific, targeted chemotherapy against breast cancer (MCF7) and prostate carcinoma (PC3) cell lines. Doxorubicin, a commonly used chemotherapy, and anti-Epithelial cell adhesion molecule (anti-EpCAM) antibodies were covalently bonded to thiolated polyethylene glycol-coated AuNR\Ag, and the resultant system was used to deliver the drugs to cancer cells in vitro...
July 21, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28730678/prognosis-following-cancer-surgery-during-holiday-periods
#11
Jesper Lagergren, Fredrik Mattsson, Pernilla Lagergren
Surgery is the mainstay curative treatment in most cancer. We aimed to test the new hypothesis that cancer surgery performed during holiday periods is associated with worse long-term prognosis than for non-holiday periods. This nationwide Swedish population-based cohort study included 228,927 patients during 1997-2014 who underwent elective resectional surgery for a cancer where the annual number of resections was over 100. The 16 eligible cancer sites were grouped into 10 cancer groups. The exposure, holiday periods, was classified as wide (14-weeks) or narrow (7-weeks)...
July 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28730423/-female-prostate-cancer
#12
S Thum, B Haben, G Christ, R Sen Gupta
We present a case of a female patient who had a clinically suspected advanced urothelial carcinoma of the urethra. Histopathological examination surprisingly revealed a malignant tumor with morphological and immunohistochemical features of prostate cancer, leading to the diagnosis of the extremely rare entity of Skene's gland adenocarcinoma.
July 20, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28730293/clinical-predictors-of-survival-in-patients-with-castration-resistant-prostate-cancer-receiving-sipuleucel-t-cellular-immunotherapy
#13
Mehmet Asim Bilen, Kenneth R Hess, Sumit K Subudhi, Ana Aparicio, Jeri Kim, Amado J Zurita-Saavedra, John C Araujo, Paul G Corn, Jessica Stover, Sue-Hwa Lin, Christopher J Logothetis, Shi-Ming Tu
BACKGROUND: We evaluated the patterns of progression and determined clinical predictors of survival in patients with castration-resistant prostate cancer (CRPCa) who received sipuleucel-T. METHODS: We retrospectively analyzed 56 consecutive patients with asymptomatic or minimally symptomatic CRPCa treated with sipuleucel-T. Age, number of bone metastases, history of prior systemic treatment, and alkaline phosphatase level (ALP) were tested as predictors of survival in a multivariate Cox proportional hazards regression model...
July 20, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28728994/a-comprehensive-analysis-of-cribriform-morphology-on-mr-us-fusion-biopsy-correlated-with-radical-prostatectomy-specimens
#14
Matthew Truong, Changyong Feng, Gary Hollenberg, Eric Weinberg, Edward M Messing, Hiroshi Miyamoto, Thomas P Frye
PURPOSE: Recently, a large body of evidence has emerged recognizing that cribriform morphology is an aggressive prostate cancer morphological pattern associated with higher cancer-specific mortality. In a comprehensive analysis, we compared traditional and contemporary prostate biopsy techniques for detection of prostate cancer with cribriform morphology and used radical prostatectomy as a reference standard. MATERIALS AND METHODS: A retrospectively maintained single institution multiparametric MRI (mpMRI) database (n = 1,001) was queried to identify 240 patients who underwent MR/US fusion targeted biopsy (TB) and concurrent systematic biopsy (SB) from December 2014 to December 2016...
July 17, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28728844/long-non-coding-rna-pcat7-regulates-elf2-signaling-through-inhibition-of-mir-134-5p-in-nasopharyngeal-carcinoma
#15
Yejun Liu, Zezhang Tao, Jining Qu, Xuhong Zhou, Chenghong Zhang
While some long noncoding RNAs (lncRNAs) might promote nasopharyngeal carcinoma (NPC) initiation and progression, the involved molecular mechanisms remain largely unclear. Here, we discovered the novel LncRNA, prostate cancer associated transcript 7 (PCAT7), which was overexpressed and associated with worse prognosis in NPC. Decreased PCAT7 expression was found to significantly suppress tumor cell proliferation in vitro, and inhibited tumor growth and reduced the expression of proliferation antigen Ki-67 in vivo...
July 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28727579/enhanced-anticancer-efficacy-of-histone-deacetyl-inhibitor-suberoylanilide-hydroxamic-acid-in-combination-with-a-phosphodiesterase-inhibitor-pentoxifylline-in-human-cancer-cell-lines-and-in-vivo-tumor-xenografts
#16
Saranya Nidhyanandan, Boreddy S Thippeswamy, Kottapalli B Chandrasekhar, Neetinkumar D Reddy, Nagaraj M Kulkarni, Kandasamy Karthikeyan, Farhin R Khan, Jayaprakash Raghul, Govindharajan Vijaykanth, Shridhar Narayanan
Vorinostat [suberoylanilide hydroxamic acid (SAHA)], a histone deacetylase inhibitor, shows limited clinical activity against solid tumors when used alone. The methyl xanthine drug, pentoxifylline (PENT), has been described to have antitumor properties. The aim of this study was to look for the enhanced anticancer activities of both agents when used in combination at doses lower than their respective efficacy dose when used alone. We investigated the antitumor potential of this novel combination in vitro and in vivo...
July 19, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28727387/focal-cryotherapy-step-by-step-technique-description
#17
Cristina Redondo, Victor Srougi, José Batista da Costa, Mohammed Baghdad, Guillermo Velilla, Igor Nunes-Silva, Sebastien Bergerat, Silvia Garcia-Barreras, François Rozet, Alexandre Ingels, Marc Galiano, Rafael Sanchez-Salas, Eric Barret, Xavier Cathelineau
INTRODUCTION AND OBJECTIVE: Focal cryotherapy emerged as an efficient option to treat favorable and localized prostate cancer (PCa). The purpose of this video is to describe the procedure step by step. MATERIALS AND METHODS: We present the case of a 68 year-old man with localized PCa in the anterior aspect of the prostate. RESULTS: The procedure is performed under general anesthesia, with the patient in lithotomy position. Briefly, the equipament utilized includes the cryotherapy console coupled with an ultrasound system, argon and helium gas bottles, cryoprobes, temperature probes and an urethral warming catheter...
July 20, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28727367/prospective-evaluation-of-vesicourethral-anastomosis-outcomes-in-robotic-radical-prostatectomy-during-early-experience-in-a-university-hospital
#18
Lucas Medeiros Burttet, Gabrielle Aguiar Varaschin, Andre Kives Berger, Leandro Totti Cavazzola, Milton Berger, Brasil Silva
PURPOSE: Robotic assisted radical prostatectomy (RARP) presents challenges for the surgeon, especially during the initial learning curve. We aimed to evaluate early and mid-term functional outcomes and complications related to vesicourethral anastomosis (VUA), in patients who underwent RARP, during the initial experience in an academic hospital. We also assessed possible predictors of postoperative incontinence and compared these results with the literature. MATERIALS AND METHODS: We prospectively collected data from consecutive patients that underwent RARP...
June 14, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28726259/characterization-of-adenoviral-transduction-profile-in-prostate-cancer-cells-and-normal-prostate-tissue
#19
Jianzhong Ai, Phillip W L Tai, Yi Lu, Jia Li, Hong Ma, Qin Su, Qiang Wei, Hong Li, Guangping Gao
BACKGROUND: Prostate diseases are common in males worldwide with high morbidity. Gene therapy is an attractive therapeutic strategy for prostate diseases, however, it is currently underdeveloped. As well known, adeno virus (Ad) is the most widely used gene therapy vector. The aims of this study are to explore transduction efficiency of Ad in prostate cancer cells and normal prostate tissue, thus further providing guidance for future prostate pathophysiological studies and therapeutic development of prostate diseases...
July 20, 2017: Prostate
https://www.readbyqxmd.com/read/28726251/effect-of-radical-prostatectomy-on-levels-of-cancer-related-epitopes-in-circulating-macrophages-of-patients-with-clinically-localized-prostate-cancer
#20
Tilman Todenhöfer, Jörg Hennenlotter, Gabriel Keller, Tim Neumann, Arnulf Stenzl, Jens Bedke
OBJECTIVE: Epitopes of the apoptosis related protein DNaseX (Apo10) and the pentose-phosphate-pathway associated protein transketolase-like 1 (TKTL1) have been shown to be increased in circulating macrophages of patients with different cancer types including prostate cancer (PC). So far, the effect of cancer-specific therapies on the levels of these markers in blood samples of patients with PC has not been evaluated yet. The aim of the present study was to prospectively assess the effect of surgical removal of the prostate on levels of Apo10 and TKTL1 in blood macrophages using Epitope Detection In Monocytes (EDIM)...
July 20, 2017: Prostate
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