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https://www.readbyqxmd.com/read/27931212/pdgf-aa-mediates-mesenchymal-stromal-cell-chemotaxis-to-the-head-and-neck-squamous-cell-carcinoma-tumor-microenvironment
#1
Tammara L Watts, Ruwen Cui, Peter Szaniszlo, Vicente A Resto, Don W Powell, Irina V Pinchuk
BACKGROUND: The robust desmoplasia associated with head and neck squamous cell carcinoma (HNSCC) suggests that the tumor microenvironment may be an important component in the pathophysiology of this cancer. Moreover, the high recurrence rate and poor clinical response to chemotherapy and radiation treatment further underscores that the non-cancerous cells of the microenvironment, such as mesenchymal stromal cells (MSCs), cancer associated fibroblasts (CAFs), and pericytes, may be important in the pathophysiology of HNSCC...
December 8, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27928444/the-remote-effects-of-intravitreal-anti-vegf-therapy
#2
Balta F, Merticariu M, Taban C, Neculau G, Merticariu A, Muresanu D, Badescu D, Jinga V
Objective: To study the effects of intravitreal anti-Vascular Endothelial Growth Factor (VEGF) therapy with Avastin for wet Age-Related Macular Degeneration (AMD) on Benign Prostatic Hyperplasia (BPH)-related symptoms. Methods: An exploratory trial was conducted from August 1, 2013 to February 1, 2014, that included 14 male patients previously diagnosed with BPH, who were aged between 59 and 69 years. The trial was performed in Bucharest and involved two medical institutions: the Clinical Hospital of Eye Emergencies and the "Prof...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27927252/dietary-inflammatory-index-and-prostate-cancer-risk-in-a-case-control-study-in-mexico
#3
Ruth A Vázquez-Salas, Nitin Shivappa, Marcia Galván-Portillo, Lizbeth López-Carrillo, James R Hébert, Luisa Torres-Sánchez
Recent evidence suggests that a pro-inflammatory diet could be associated with prostate cancer (PC) risk. To evaluate the association between dietary inflammatory index (DII) and PC risk as well as aggressiveness, we conducted a case-control study in Mexico City. Cases were 394 individuals with incident, histologically confirmed PC, who were matched by age (±5 years) with 794 population controls. Dietary information was obtained through a semi-quantitative FFQ with a 3-year frame of reference before diagnosis, for cases, or interview, for controls...
December 8, 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27927199/sh003-induces-apoptosis-of-du145-prostate-cancer-cells-by-inhibiting-erk-involved-pathway
#4
Yu-Jeong Choi, Youn Kyung Choi, Kang Min Lee, Sung-Gook Cho, Soo-Yeon Kang, Seong-Gyu Ko
BACKGROUND: Herbal medicines have been used in cancer treatment, with many exhibiting favorable side effect and toxicity profiles compared with conventional chemotherapeutic agents. SH003 is a novel extract from Astragalus membranaceus, Angelica gigas, and Trichosanthes Kirilowii Maximowicz combined at a 1:1:1 ratio that impairs the growth of breast cancer cells. This study investigates anti-cancer effects of SH003 in prostate cancer cells. METHODS: SH003 extract in 30% ethanol was used to treat the prostate cancer cell lines DU145, LNCaP, and PC-3...
December 7, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27914560/diagnosis-and-treatment-of-testosterone-deficiency-recommendations-from-the-fourth-international-consultation-for-sexual-medicine-icsm%C3%A2-2015
#5
Mohit Khera, Ganesh Adaikan, Jacques Buvat, Serge Carrier, Amr El-Meliegy, Kostas Hatzimouratidis, Andrew McCullough, Abraham Morgentaler, Luiz Otavio Torres, Andrea Salonia
INTRODUCTION: Testosterone deficiency (TD), also known as hypogonadism, is a condition affecting a substantial proportion of men as they age. The diagnosis and management of TD can be challenging and clinicians should be aware of the current literature on this condition. AIM: To review the available literature concerning the diagnosis and management of TD and to provide clinically relevant recommendations from the Fourth International Consultation for Sexual Medicine (ICSM) meeting...
December 2016: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/27912102/toyocamycin-induces-apoptosis-via-the-crosstalk-between-reactive-oxygen-species-and-p38-erk-mapks-signaling-pathway-in-human-prostate-cancer-pc-3-cells
#6
Sul-Gi Park, Sang-Hun Kim, Kwang-Youn Kim, Sun-Nyoung Yu, Hyeun-Deok Choi, Young-Wook Kim, Hyo-Won Nam, Young-Kyo Seo, Soon-Cheol Ahn
BACKGROUND: Toyocamycin, an antibiotic agent isolated from Streptomyces species, has been shown to have anticancer and chemopreventive effects on various cancer cells. Until now, Toyocamycin-induced apoptosis has not been reported to be involved in the regulation between mitogen-activated protein kinases (MAPKs) and reactive oxygen species (ROS) production. METHODS: Cell viability assay, western blot, cell-cycle arrest, annexin V/propidium iodide assay, reactive oxygen species (ROS) production, mitochondrial membrane potential and intracellular Ca(2+) flux were assayed...
October 24, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27910803/the-prognostic-and-predictive-value-of-tmprss2-erg-gene-fusion-and-erg-protein-expression-in-prostate-cancer-biopsies
#7
Kasper Drimer Berg
BACKGROUND: The clinical course of prostate carcinoma (PCa) is very heterogeneous. Consequently, a personalised approach for risk stratification and treatment planning is important. Recently, it has become evident that PCa, also at the genomic level, is heterogeneous. An early and common alteration is the gene fusion between the transmembrane protease serine 2 (TMPRSS2) gene and the v-ets avian erythroblastosis virus E26 oncogene homolog (ERG) gene resulting in expression of the oncoprotein ERG...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27908170/high-resolution-digital-autoradiographic-and-dosimetric-analysis-of-heterogeneous-radioactivity-distribution-in-xenografted-prostate-tumors
#8
Oskar V Timmermand, Jenny Nilsson, Sven-Erik Strand, Jörgen Elgqvist
PURPOSE: The first main aim of this study was to illustrate the absorbed dose rate distribution from (177)Lu in sections of xenografted prostate cancer (PCa) tumors using high resolution digital autoradiography (DAR) and compare it with hypothetical identical radioactivity distributions of (90)Y or 7 MeV alpha-particles. Three dosimetry models based on either dose point kernels or Monte Carlo simulations were used and evaluated. The second and overlapping aim, was to perform DAR imaging and dosimetric analysis of the distribution of radioactivity, and hence the absorbed dose rate, in tumor sections at an early time point after injection during radioimmunotherapy using (177)Lu-h11B6, directed against the human kallikrein 2 antigen...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27906189/distinct-outcomes-of-crl-nedd8-pathway-inhibition-reveal-cancer-cell-plasticity
#9
Anastasia V Rulina, Frédérique Mittler, Patricia Obeid, Sophie Gerbaud, Laurent Guyon, Eric Sulpice, Frédérique Kermarrec, Nicole Assard, Monika E Dolega, Xavier Gidrol, Maxim Y Balakirev
Inhibition of protein degradation by blocking Cullin-RING E3 ligases (CRLs) is a new approach in cancer therapy though of unknown risk because CRL inhibition may stabilize both oncoproteins and tumor suppressors. Probing CRLs in prostate cancer cells revealed a remarkable plasticity of cells with TMPRSS2-ERG translocation. CRL suppression by chemical inhibition or knockdown of RING component RBX1 led to reversible G0/G1 cell cycle arrest that prevented cell apoptosis. Conversely, complete blocking of CRLs at a higher inhibitor dose-induced cytotoxicity that was amplified by knockdown of CRL regulator Cand1...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27900797/evidence-for-feedback-regulation-following-cholesterol-lowering-therapy-in-a-prostate-cancer-xenograft-model
#10
Elizabeth M Masko, Mahmoud A Alfaqih, Keith R Solomon, William T Barry, Christopher B Newgard, Michael J Muehlbauer, Nikolaos A Valilis, Tameika E Phillips, Susan H Poulton, Alexis R Freedland, Stephanie Sun, Shweta K Dambal, Sergio E Sanders, Everardo Macias, Michael R Freeman, Mark W Dewhirst, Salvatore V Pizzo, Stephen J Freedland
BACKGROUND: Epidemiologic data suggest cholesterol-lowering drugs may prevent the progression of prostate cancer, but not the incidence of the disease. However, the association of combination therapy in cholesterol reduction on prostate or any cancer is unclear. In this study, we compared the effects of the cholesterol lowering drugs simvastatin and ezetimibe alone or in combination on the growth of LAPC-4 prostate cancer in vivo xenografts. METHODS: Proliferation assays were conducted by MTS solution and assessed by Student's t-test...
November 30, 2016: Prostate
https://www.readbyqxmd.com/read/27897170/truncation-and-constitutive-activation-of-the-androgen-receptor-by-diverse-genomic-rearrangements-in-prostate-cancer
#11
Christine Henzler, Yingming Li, Rendong Yang, Terri McBride, Yeung Ho, Cynthia Sprenger, Gang Liu, Ilsa Coleman, Bryce Lakely, Rui Li, Shihong Ma, Sean R Landman, Vipin Kumar, Tae Hyun Hwang, Ganesh V Raj, Celestia S Higano, Colm Morrissey, Peter S Nelson, Stephen R Plymate, Scott M Dehm
Molecularly targeted therapies for advanced prostate cancer include castration modalities that suppress ligand-dependent transcriptional activity of the androgen receptor (AR). However, persistent AR signalling undermines therapeutic efficacy and promotes progression to lethal castration-resistant prostate cancer (CRPC), even when patients are treated with potent second-generation AR-targeted therapies abiraterone and enzalutamide. Here we define diverse AR genomic structural rearrangements (AR-GSRs) as a class of molecular alterations occurring in one third of CRPC-stage tumours...
November 29, 2016: Nature Communications
https://www.readbyqxmd.com/read/27893755/quantification-of-arachidonic-acid-and-its-metabolites-in-rat-tissues-by-uhplc-ms-ms-application-for-the-identification-of-potential-biomarkers-of-benign-prostatic-hyperplasia
#12
Qiaoxia Bian, Weihui Wang, Nannan Wang, Yan Peng, Wen Ma, Ronghua Dai
To evaluate the potential relationship between benign prostatic hyperplasia (BPH) and the arachidonic acid (AA) metabolome, a UHPLC-MS/MS method has been developed and validated for simultaneous determination of AA and its cyclooxygenase(COX) and lipoxygenase(LOX) pathway metabolites (15-HETE, 12-HETE, TXA2, 5-HETE, AA, PGI2, PGF2α, 8-HETE, PGD2, PGE2 and LTB4) in rat tissues. The analytes were extracted from tissue samples with a protein precipitation procedure and then separated on a Shim-pack XR-ODSC18 column with 0...
2016: PloS One
https://www.readbyqxmd.com/read/27893706/microrna-383-located-in-frequently-deleted-chromosomal-locus-8p22-regulates-cd44-in-prostate-cancer
#13
N Bucay, K Sekhon, T Yang, S Majid, V Shahryari, C Hsieh, Y Mitsui, G Deng, Z L Tabatabai, S Yamamura, G A Calin, R Dahiya, Y Tanaka, S Saini
A major genomic alteration in prostate cancer (PCa) is frequent loss of chromosome (chr) 8p with a common region of loss of heterozygosity (LOH) at chr8p22 locus. Genomic studies implicate this locus in the initiation of clinically significant PCa and with progression to metastatic disease. However, the genes within this region have not been fully characterized to date. Here we demonstrate for the first time that a microRNA component of this region-miR-383-is frequently downregulated in prostate cancer, has a critical role in determining tumor-initiating potential and is involved in prostate cancer metastasis via direct regulation of CD44, a ubiquitous marker of PCa tumor-initiating cells (TICs)/stem cells...
November 28, 2016: Oncogene
https://www.readbyqxmd.com/read/27891445/breast-cancer-with-synchronous-renal-cell-carcinoma-a-rare-presentation
#14
Ravi Arjunan, Durgesh Kumar, K V Veerendra Kumar, C S Premlatha
Primary cancer arising from multiple organs is a well known fact. Synchronous tumours have been most commonly associated with kidney cancer. Bladder, prostate, colorectal and lung cancer are the most common synchronous primaries with Renal Cell Carcinoma (RCC) identified till date. We found metachronous tumours of breast with RCC in literature search which included both metastatic tumours as well second primaries. Overall, 25 cases of metastatic breast tumours and eight cases of second primary in previously treated RCC have been reported in the literature...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890493/higher-number-of-transrectal-ultrasound-guided-prostate-biopsy-cores-is-associated-with-higher-blood-loss-and-perioperative-complications-in-robot-assisted-radical-prostatectomy
#15
A Carneiro, A Sivaraman, R Sanchez-Salas, I Nunes-Silva, M Baghdadi, V Srougi, E di Trapani, F Uriburu Pizzaro, S Doizi, E Barret, F Rozet, M Galiano, X Cathelineau
INTRODUCTION: The local inflammatory process after prostate biopsies can have a negative impact on functional outcomes of radical prostatectomy. There is no evidence in literature demonstrating its impact on radical prostatectomy. OBJECTIVES: To evaluate the impact of the number of TRUS core biopsies in the surgical morbidity and rate of positive margin on robot assisted radical prostatectomy (RARP). MATERIAL AND METHODS: A prospectively maintained database of 2,054 RARPs in a single institution...
November 24, 2016: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/27890426/patient-reported-quality-of-life-after-stereotactic-body-radiation-therapy-versus-moderate-hypofractionation-for-clinically-localized-prostate-cancer
#16
Skyler Bryce Johnson, Pamela R Soulos, Timothy D Shafman, Constantine A Mantz, Arie P Dosoretz, Rudi Ross, Steven E Finkelstein, Sean P Collins, Simeng Suy, Jeffrey V Brower, Mark A Ritter, Christopher R King, Patrick A Kupelian, Eric M Horwitz, Alan Pollack, Matthew C Abramowitz, Mark A Hallman, Sergio Faria, Cary P Gross, James B Yu
BACKGROUND AND PURPOSE: Evaluate changes in bowel, urinary and sexual patient-reported quality of life following treatment with moderately hypofractionated radiotherapy (<5Gray/fraction) or stereotactic body radiation therapy (SBRT;5-10Gray/fraction) for prostate cancer. MATERIALS AND METHODS: In a pooled multi-institutional analysis of men treated with moderate hypofractionation or SBRT, we compared minimally detectable difference in bowel, urinary and sexual quality of life at 1 and 2years using chi-squared analysis and logistic regression...
November 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27889644/delineating-the-role-of-%C3%AE-iv-tubulins-in-pancreatic-cancer-%C3%AE-ivb-tubulin-inhibition-sensitizes-pancreatic-cancer-cells-to-vinca-alkaloids
#17
G Sharbeen, J McCarroll, J Liu, J Youkhana, L F Limbri, A V Biankin, A Johns, M Kavallaris, D Goldstein, P A Phillips
Pancreatic cancer (PC) is a lethal disease which is characterized by chemoresistance. Components of the cell cytoskeleton are therapeutic targets in cancer. βIV-tubulin is one such component that has two isotypes-βIVa and βIVb. βIVa and βIVb isotypes only differ in two amino acids at their C-terminus. Studies have implicated βIVa-tubulin or βIVb-tubulin expression with chemoresistance in prostate, breast, ovarian and lung cancer. However, no studies have examined the role of βIV-tubulin in PC or attempted to identify isotype specific roles in regulating cancer cell growth and chemosensitivity...
November 24, 2016: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/27889177/-assessment-of-the-learning-curves-for-intravesical-adenoma-morcellation-using-piranha-%C3%A2-device-during-endoscopic-enucleation
#18
V Misrai, B Bordier, J Guillotreau
INTRODUCTION: Morcellation of intravesical adenoma (MIA) is an important part of the endoscopic enucleation procedure. The aim of this study was to analyse the learning curve of the MIA during endoscopic enucleation of the prostate. MATERIAL: We conducted a prospective study of the first 90 patients treated by endoscopic enucleation of the prostate by a single surgeon without previous experience of MIA. The population was divided into 3 consecutive groups of 30 patients...
November 23, 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/27880737/development-and-clinical-introduction-of-automated-radiotherapy-treatment-planning-for-prostate-cancer
#19
D Winkel, G H Bol, B van Asselen, J Hes, V Scholten, L G W Kerkmeijer, B W Raaymakers
To develop an automated radiotherapy treatment planning and optimization workflow to efficiently create patient specifically optimized clinical grade treatment plans for prostate cancer and to implement it in clinical practice. A two-phased planning and optimization workflow was developed to automatically generate 77Gy 5-field simultaneously integrated boost intensity modulated radiation therapy (SIB-IMRT) plans for prostate cancer treatment. A retrospective planning study (n  =  100) was performed in which automatically and manually generated treatment plans were compared...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27875276/cancer-cells-become-less-deformable-and-more-invasive-with-activation-of-%C3%AE-adrenergic-signaling
#20
Tae-Hyung Kim, Navjot Kaur Gill, Kendra D Nyberg, Angelyn V Nguyen, Sophia V Hohlbauch, Nicholas A Geisse, Cameron J Nowell, Erica K Sloan, Amy C Rowat
Invasion by cancer cells is a critical step in metastasis. An oversimplified view in the literature is that cancer cells become more deformable as they become more invasive. β-adrenergic receptor (βAR) signaling drives invasion and metastasis, but the effects on cell deformability are not known. Here we show that activation of β-adrenergic signaling by βAR agonists reduces the deformability of highly metastatic human breast cancer cells, and that these stiffer cells are more invasive in vitro We find that βAR activation also reduces the deformability of ovarian, prostate, melanoma, and leukemia cells...
November 14, 2016: Journal of Cell Science
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