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https://www.readbyqxmd.com/read/28928821/involvement-of-estrogen-receptor-%C3%AE-in-androgen-receptor-induced-growth-inhibition-in-prostate-cancer-pc-3-cells
#1
Long Xiao, Minhui Xiao, Linbo Gao, Wanchao Xu
Previous studies have suggested that changes in sex hormone receptor expression may be associated with the initiation and progression of prostate cancer (PCa). Therefore, the present study aimed to investigate the association and possible pathways between two sex hormone receptors and PCa by measuring the expression levels of the androgen receptor (AR) and the estrogen receptor subtypes alpha (ERα) and beta (ERβ) in prostatic cancer PC-3 cell lines. The pcDNA3.1-hERβ plasmid was transfected into PC-3 cell lines...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28918914/analysis-of-genomes-and-transcriptomes-of-hepatocellular-carcinomas-identifies-mutations-and-gene-expression-changes-in-the-transforming-growth-factor-beta-pathway-short-title-prognostic-significance-of-tgf-%C3%AE-signature-in-liver-cancer
#2
Jian Chen, Sobia Zaidi, Shuyun Rao, Jiun-Sheng Chen, Liem Phan, Patrizia Farci, Xiaoping Su, Kirti Shetty, Jon White, Fausto Zamboni, Xifeng Wu, Asif Rashid, Nagarajan Pattabiraman, Raja Mazumder, Anelia Horvath, Ray-Chang Wu, Shulin Li, Cuiying Xiao, Chu-Xia Deng, David A Wheeler, Bibhuti Mishra, Rehan Akbani, Lopa Mishra
BACKGROUND & AIMS: Development of hepatocellular carcinoma (HCC) is associated with alterations in the transforming growth factor beta (TGFβ) signaling pathway, which regulates liver inflammation and can have tumor suppressor or promoter activities. Little is known about the roles of specific members of this pathway at specific of HCC development. We took an integrated approach to identify and validate the effects of changes in this pathway in HCC and identify therapeutic targets. METHODS: We performed transcriptome analyses for a total of 488 HCCs that include data from The Cancer Genome Atlas...
September 14, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28913729/exome-array-analysis-identifies-etfb-as-a-novel-susceptibility-gene-for-anthracycline-induced-cardiotoxicity-in-cancer-patients
#3
Sara Ruiz-Pinto, Guillermo Pita, Miguel Martín, Teresa Alonso-Gordoa, Daniel R Barnes, María R Alonso, Belén Herraez, Purificación García-Miguel, Javier Alonso, Antonio Pérez-Martínez, Antonio J Cartón, Federico Gutiérrez-Larraya, José A García-Sáenz, Javier Benítez, Douglas F Easton, Ana Patiño-García, Anna González-Neira
PURPOSE: Anthracyclines are widely used chemotherapeutic drugs that can cause progressive and irreversible cardiac damage and fatal heart failure. Several genetic variants associated with anthracycline-induced cardiotoxicity (AIC) have been identified, but they explain only a small proportion of the interindividual differences in AIC susceptibility. METHODS: In this study, we evaluated the association of low-frequency variants with risk of chronic AIC using the Illumina HumanExome BeadChip array in a discovery cohort of 61 anthracycline-treated breast cancer patients with replication in a second independent cohort of 83 anthracycline-treated pediatric cancer patients, using gene-based tests (SKAT-O)...
September 14, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28904862/t-darpp-is-an-elongated-monomer-that-binds-calcium-and-is-phosphorylated-by-cyclin-dependent-kinases-1-and-5
#4
Jamil Momand, Patrycja Magdziarz, You Feng, Dianlu Jiang, Elizabeth Parga, Arianna Celis, Erin Denny, Xiaoying Wang, Martin L Phillips, Estuardo Monterroso, Susan E Kane, Feimeng Zhou
t-Darpp (truncated isoform of dopamine- and cAMP-regulated phosphoprotein) is a protein encoded by the PPP1R1B gene and is expressed in breast, colon, esophageal, gastric, and prostate cancers, as well as in normal adult brain striatal cells. Overexpression of t-Darpp in cultured cells leads to increased protein kinase A activity and increased phosphorylation of AKT (protein kinase B). In HER2+ breast cancer cells, t-Darpp confers resistance to the chemotherapeutic agent trastuzumab. To shed light on t-Darpp function, we studied its secondary structure, oligomerization status, metal-binding properties, and phosphorylation by cyclin-dependent kinases 1 and 5...
September 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28881597/tgfbeta-and-mirna-regulation-in-familial-and-sporadic-breast-cancer
#5
Katia Danza, Simona De Summa, Rosamaria Pinto, Brunella Pilato, Orazio Palumbo, Massimo Carella, Ondina Popescu, Maria Digennaro, Rosanna Lacalamita, Stefania Tommasi
The term 'BRCAness' was introduced to identify sporadic malignant tumors sharing characteristics similar to those germline BRCA-related. Among all mechanisms attributable to BRCA1 expression silencing, a major role has been assigned to microRNAs. MicroRNAs role in familial and sporadic breast cancer has been explored but few data are available about microRNAs involvement in homologous recombination repair control in these breast cancer subgroups. Our aim was to seek microRNAs associated to pathways underlying DNA repair dysfunction in breast cancer according to a family history of the disease...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28878287/metabolomic-profiling-of-serum-retinol-in-the-alpha-tocopherol-beta-carotene-cancer-prevention-atbc-study
#6
Jiaqi Huang, Orestis A Panagiotou, Gabriella M Anic, Alison M Mondul, Linda M Liao, Andriy Derkach, Rachael Stolzenberg-Solomon, Stephanie J Weinstein, Demetrius Albanes
The role of retinol in the prevention of multifactorial chronic diseases remains uncertain, and there is sparse evidence regarding biological actions and pathways implicated in its effects on various outcomes. The aim is to investigate whether serum retinol in an un-supplemented state is associated with low molecular weight circulating metabolites. We performed a metabolomic analysis of 1,282 male smoker participants based on pre-supplementation fasting serum in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877800/disparities-in-mangement-of-patients-with-benign-colorectal-disease-impact-of-urbanization-and-specialized-care
#7
Viraj Pandit, Mazhar Khalil, Bellal Joseph, Jana Jandova, Tahereh Orouji Jokar, Ansab Abbas Haider, Bardiya Zangbar, Asad Azim, Ahmed Hassan, Valentine Nfonsam
Disparities in the management of patients with various medical conditions are well established. Colorectal diseases continue to remain one of the most common causes for surgical intervention. The aim of this study was to assess disparities (rural versus urban) in the surgical management of patients with noncancerous benign colorectal diseases. We hypothesized that there is no difference among rural versus urban centers (UC) in the surgical management for noncancerous benign colorectal diseases. The national estimates of surgical procedures for benign colorectal diseases from the National Inpatient Sample database 2011 representing 20 per cent of all in-patient admissions were abstracted...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28875999/a-comparison-of-the-human-and-mouse-protein-corona-profiles-of-functionalized-sio2-nanocarriers
#8
A Solorio-Rodríguez, V Escamilla-Rivera, M Uribe-Ramírez, A Chagolla, R Winkler, C M García-Cuellar, A De Vizcaya-Ruiz
Nanoparticles are a promising cancer therapy for their use as drug carriers given their versatile functionalization with polyethylene glycol and proteins that can be recognized by overexpressed receptors in tumor cells. However, it has been suggested that in biological fluids, proteins cover nanoparticles, which gives the proteins a biological identity that could be responsible for unexpected biological responses: the so-called protein corona. A relevant biological event that is usually ignored in protein-corona formation is the interspecies differences in protein binding, which can be involved in the discrepancies observed in preclinical studies and the nanoparticle safety and efficiency...
September 6, 2017: Nanoscale
https://www.readbyqxmd.com/read/28870891/lidocaine-stimulates-the-function-of-natural-killer-cells-in-different-experimental-settings
#9
REVIEW
Juan P Cata, Maria F Ramirez, Jose F Velasquez, A I Di, Keyuri U Popat, Vijaya Gottumukkala, Dahlia M Black, Valerae O Lewis, Jean N Vauthey
BACKGROUND: One of the functions of natural killer (NK) cells is to eliminate cancer cells. The cytolytic activity of NK cells is tightly regulated by inhibitory and activation receptors located in the surface membrane. Lidocaine stimulates the function of NK cells at clinically relevant concentrations. It remains unknown whether this effect of lidocaine has an impact on the expression of surface receptors of NK cells, can uniformly stimulate across different cancer cell lines, and enhances the function of cells obtained during oncological surgery...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28870799/cranial-electrotherapy-stimulation-for-the-management-of-depression-anxiety-sleep-disturbance-and-pain-in-patients-with-advanced-cancer-a-preliminary-study
#10
Sriram Yennurajalingam, Duck-Hee Kang, Wen-Jen Hwu, Nikhil S Padhye, Charles Masino, Seyedeh S Dibaj, Diane D Liu, Janet L Williams, Zhanni Lu, Eduardo Bruera
CONTEXT: Cranial Electrotherapy Stimulation (CES) is a safe modulation of brain activity for treating depression, anxiety, insomnia, and pain. However, there are no published studies in patients with advanced cancer (ACP). OBJECTIVES: The aim of the study was to determine the feasibility and preliminary efficacy of a 4-week CES intervention on depression, anxiety, sleep disturbance, and pain scores. Concurrent salivary biomarker studies were conducted. METHODS: In this one group open label pre- and post-intervention study with a 4-week CES intervention, ACP's with one or more of four moderate intensity (≥3/10) ESAS symptoms (depression, anxiety, sleep disturbance, and pain) were eligible...
September 1, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28869321/series-test-of-cluster-and-network-analysis-for-lupus-nephritis-before-and-after-ifn-k-immunosuppressive-therapy
#11
Sen Luan, Ping Li, Tingting Yi
AIM: The purpose was to screen potential targets of IFN-K-immunosuppressive therapy, which was used to offer effective information and resources for molecular targeted therapy. METHODS: The gene expression profile of GSE72747 was used to screen out significant differently expressed genes (DEGs). Series Test of Cluster (STC) analysis for DEGs was performed. For all DEGs, the Database for Annotation, Visualization, and Integrated Discovery was performed for Gene Ontology (GO) enrichment analysis...
September 4, 2017: Nephrology
https://www.readbyqxmd.com/read/28868167/comparing-the-effects-of-combined-general-epidural-anaesthesia-and-general-anaesthesia-on-serum-cytokine-levels-in-radical-cystectomy
#12
Meltem Savran Karadeniz, Orkhan Mammadov, Hayriye Şentürk Çiftci, Sebahat Akgül Usta, Kamil Pembeci
OBJECTIVE: Surgical stress combined with general anaesthesia (GA) suppresses the immune system and leads to cancer cell growth and premature metastasis in major oncological interventions. Epidural analgesia decreases the need for inhalation agents and opioids during surgery by suppressing sympathetic and neuroendocrine responses in the postoperative period. This study aimed to compare the effects of combined general/epidural anaesthesia (GEA)+patient-controlled epidural analgesia (PCEA) and GA+IV patient-controlled analgesia (PCA) on serum tumour necrosis factor-alpha TNF-α), interleukin-1 beta (IL-1β) and interferon-gamma (IFN-γ) levels in patients undergoing radical cystectomy...
August 2017: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/28867761/smad2-inactivation-inhibits-cldn6-methylation-to-suppress-migration-and-invasion-of-breast-cancer-cells
#13
Yan Lu, Liping Wang, Hairi Li, Yanru Li, Yang Ruan, Dongjing Lin, Minlan Yang, Xiangshu Jin, Yantong Guo, Xiaoli Zhang, Chengshi Quan
The downregulation of tight junction protein CLDN6 promotes breast cancer cell migration and invasion; however, the exact mechanism underlying CLDN6 downregulation remains unclear. CLDN6 silence is associated with DNA methyltransferase 1 (DNMT1) mediated DNA methylation, and DNMT1 is regulated by the transforming growth factor beta (TGFβ)/SMAD pathway. Therefore, we hypothesized that TGFβ/SMAD pathway, specifically SMAD2, may play a critical role for CLDN6 downregulation through DNA methyltransferase 1 (DNMT1) mediated DNA methylation...
August 30, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28866371/no-longer-any-role-for-routine-follow-up-chest-x-rays-in-men-with-stage-i-germ-cell-cancer
#14
H De La Pena, A Sharma, C Glicksman, J Joseph, M Subesinghe, Z Traill, C Verrill, M Sullivan, J Redgwell, E Bataillard, E Pintus, N Dallas, A Gogbashian, M Tuthill, A Protheroe, M Hall
Following radical orchidectomy for testicular cancer, most patients undergo protocolled surveillance to detect tumour recurrences rather than receive adjuvant chemotherapy. Current United Kingdom national and most international guidelines recommend that patients require a chest x-ray (CXR) and serum tumour markers at each follow-up visit as well as regular CT scans; there is however, variation among cancer centres with follow-up protocols. Seminomas often do not cause tumour marker elevation; therefore, CT scans are the main diagnostic tool for detecting relapse...
August 31, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28864947/immortal-time-bias-in-pharmacoepidemiological-studies-on-cancer-patient-survival-empirical-illustration-for-beta-blocker-use-in-four-cancers-with-different-prognosis
#15
Janick Weberpals, Lina Jansen, Myrthe P P van Herk-Sukel, Josephina G Kuiper, Mieke J Aarts, Pauline A J Vissers, Hermann Brenner
Immortal time bias (ITB) is still seen frequently in medical literature. However, not much is known about this bias in the field of cancer (pharmaco-)epidemiology. In context of a hypothetical beneficial beta-blocker use among cancer patients, we aimed to demonstrate the magnitude of ITB among 9876 prostate, colorectal, lung and pancreatic cancer patients diagnosed between 1998 and 2011, which were selected from a database linkage of the Netherlands Cancer Registry and the PHARMO Database Network. Hazard ratios (HR) and 95% confidence intervals from three ITB scenarios, defining exposure at a defined point after diagnosis (model 1), at any point after diagnosis (model 2) and as multiple exposures after diagnosis (model 3), were calculated to investigate the association between beta-blockers and cancer prognosis using Cox proportional hazards regression...
September 1, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28864864/the-anticancer-estrogen-receptor-antagonist-tamoxifen-impairs-consolidation-of-inhibitory-avoidance-memory-through-estrogen-receptor-alpha
#16
Martina Lichtenfels, Arethuza da Silva Dornelles, Fernanda Dos Santos Petry, Martina Blank, Caroline Brunetto de Farias, Rafael Roesler, Gilberto Schwartsmann
Over two-thirds of women with breast cancer have positive tumors for hormone receptors, and these patients undergo treatment with endocrine therapy, tamoxifen being the most widely used agent. Despite being very effective in breast cancer treatment, tamoxifen is associated with side effects that include cognitive impairments. However, the specific aspects and mechanisms underlying these impairments remain to be characterized. Here, we have investigated the effects of tamoxifen and interaction with estrogen receptors on formation of memory for inhibitory avoidance conditioning in female rats...
September 2, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28857052/antiarrhythmic-drug-usage-and-prostate-cancer-a-population-based-cohort-study
#17
Li-Ting Kao, Chung-Chien Huang, Herng-Ching Lin, Chao-Yuan Huang
Even though the relationship between antiarrhythmic drug usage and subsequent prostate cancer (PCa) risk has recently been highlighted, relevant findings in the previous literature are still inconsistent. In addition, very few studies have attempted to investigate the association between sodium channel blockers or potassium channel blockers for arrhythmia and the subsequent PCa risk. Therefore, this cohort study aimed to find the relationship between antiarrhythmic drug usage and the subsequent PCa risk using a population-based dataset...
August 29, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28846462/immunohistochemical-markers-for-prospective-studies-in-neurofibromatosis-1-porcine-models
#18
David K Meyerholz, Georgina K Ofori-Amanfo, Mariah R Leidinger, J Adam Goeken, Rajesh Khanna, Jessica C Sieren, Benjamin W Darbro, Dawn E Quelle, Jill M Weimer
Neurofibromatosis type 1 (NF1) is a common, cancer-predisposing disease caused by mutations in the NF1 tumor gene. Patients with NF1 have an increased risk for benign and malignant tumors of the nervous system (e.g., neurofibromas, malignant peripheral nerve sheath tumors, gliomas) and other tissues (e.g., leukemias, rhabdomyosarcoma, etc.) as well as increased susceptibility to learning disabilities, chronic pain/migraines, hypertension, pigmentary changes, and developmental lesions (e.g., tibial pseudoarthrosis)...
August 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28845459/moderate-exercise-has-limited-but-distinguishable-effects-on-the-mouse-microbiome
#19
Emily V Lamoureux, Scott A Grandy, Morgan G I Langille
The gut microbiome is known to have a complex yet vital relationship with host health. While both exercise and the gut microbiome have been shown to impact human health independently, the direct effects of moderate exercise on the intestinal microbiota remain unclear. In this study, we compared gut microbial diversity and changes in inflammatory markers associated with exercise over an 8-week period in mice that performed either voluntary exercise (VE) (n = 10) or moderate forced exercise (FE) (n = 11) and mice that did not perform any exercise (n = 21)...
July 2017: MSystems
https://www.readbyqxmd.com/read/28845214/elucidation-of-molecular-mechanisms-of-streptozotocin-induced-oxidative-stress-apoptosis-and-mitochondrial-dysfunction-in-rin-5f-pancreatic-%C3%AE-cells
#20
Arwa M T Al Nahdi, Annie John, Haider Raza
Streptozotocin is a pancreatic beta-cell-specific cytotoxin and is widely used to induce experimental type 1 diabetes in rodent models. The precise molecular mechanism of STZ cytotoxicity is however not clear. Studies have suggested that STZ is preferably absorbed by insulin-secreting β-cells and induces cytotoxicity by producing reactive oxygen species/reactive nitrogen species (ROS/RNS). In the present study, we have investigated the mechanism of cytotoxicity of STZ in insulin-secreting pancreatic cancer cells (Rin-5F) at different doses and time intervals...
2017: Oxidative Medicine and Cellular Longevity
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