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https://www.readbyqxmd.com/read/28542650/interdependence-of-jak-stat-and-mapk-signaling-pathways-during-egf-mediated-htr-8-svneo-cell-invasion
#1
Ankita Malik, Rahul Pal, Satish Kumar Gupta
Invasion of trophoblast cells is spatio-temporally regulated by various cytokines and growth factors. In pregnancy, complications like preeclampsia, shallow invasion of trophoblast cells and low amounts of epidermal growth factor (EGF) have been reported. In the present study, regulatory mechanisms associated with EGF-mediated invasion in HTR-8/SVneo trophoblastic cells have been delineated. Treatment of HTR-8/SVneo cells with EGF (10 ng/ml) led to eight fold increase (p < 0.05) in invasion. Increased invasion of HTR-8/SVneo cells by EGF was associated with an increase in phosphorylation of ERK½...
2017: PloS One
https://www.readbyqxmd.com/read/28542251/transcriptome-microrna-analysis-of-sarcoptes-scabiei-and-host-immune-response
#2
Ran He, Xiaobin Gu, Weimin Lai, Xuerong Peng, Guangyou Yang
Scabies is a parasitic disease, caused by the mite Sarcoptes scabiei, and is considered one of the top 50 epidemic diseases and one the most common human skin disease, worldwide. Allergic dermatitis, including an intense itch, is a common symptom, however diagnosis is difficult and there is currently no effective vaccine. The goal of this study was to examine the immune interaction mechanism of both S. scabiei and infected hosts. mRNA-seq and microRNA-seq were conducted on the S. scabiei mite and on infected and uninfected hosts...
2017: PloS One
https://www.readbyqxmd.com/read/28542149/jak-stat-signaling-is-necessary-for-cell-monosis-prior-to-epithelial-cell-apoptotic-extrusion
#3
Alba Y Torres, Marianne Malartre, Anne-Marie Pret, François Agnès
Epithelial cell extrusion is crucial for proper development and tissue homeostasis. High-resolution 3D reconstruction and 4D imaging, combined with genetic analyis, have allowed us to reveal the highly-sterotyped morphogenetic events controlled by JAK/STAT signaling in a developmentally-programmed case of epithelial cell extrusion. Specialized somatic cells, Polar Cells (PCs), are produced in excess and then undergo apoptotic elimination from the follicular epithelium in the Drosophila ovary. We show that supernumerary PCs are first systematically enveloped by PC neighbors on all sides, first laterally, then apically in conjunction with highly-reinforced adherens junctions, and finally basally...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28540087/elevated-cardiovascular-risks-among-postmenopausal-women-a-community-based-case-control-study-from-nepal
#4
Bashu Dev Pardhe, Sumitra Ghimire, Jyotsna Shakya, Sabala Pathak, Shreena Shakya, Anjeela Bhetwal, Puspa Raj Khanal, Narayan Prasad Parajuli
Cardiovascular disease (CVD) is one of the leading causes of death worldwide which is more prevalent in women after menopause. Hormonal changes associated with menopause are accountable for dyslipidemic pattern that causes CVD and associated complications. Therefore, the present study was commenced to compare the lipid profile in pre- and postmenopausal women. A descriptive cross-sectional study was conducted at Manmohan Memorial Institute of Health Sciences (MMIHS) from February 2016 to July 2016. A total of 260 fasting samples were collected from healthy women, 130 from premenopausal and 130 from postmenopausal women, and analyzed for Total Cholesterol (TC), Triacylglycerol (TAG), High Density Lipoprotein Cholesterol (HDL-C), and Low Density Lipoprotein Cholesterol (LDL-C) as per the guideline provided by the reagent manufacturer (Human, Germany)...
2017: Biochemistry Research International
https://www.readbyqxmd.com/read/28539994/the-prevalence-of-restless-legs-syndrome-in-patients-undergoing-hemodialysis-a-systematic-review-and-meta-analysis-study
#5
REVIEW
Reza Ghanei Gheshlagh, Mohammad Farajzadeh, Mozhdeh Zarei, Vajiheh Baghi, Sahar Dalvand, Kourosh Sayehmiri
INTRODUCTION: Restless legs syndrome is a sensory-motor disorder that causes sleep disorder. The syndrome in patients undergoing hemodialysis associates with depression, sleep deprivation, performance disorder, day fatigue, excessive daytime sleepiness, stress, anxiety, and higher risk of cardiovascular diseases. The objective of this systematic meta-analysis study was to estimate prevalence of restless legs syndrome in patients undergoing hemodialysis. METHODS: Twenty-six relevant articles published between 2000 and 2015 indexed in Iranian (MagIran and IranMedex) and international databases (SID, Google Scholar, ScienceDirect, PubMed, Pre Quest, and Scopus) were selected...
March 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28538171/proliferation-drives-aging-related-functional-decline-in-a-subpopulation-of-the-hematopoietic-stem-cell-compartment
#6
Kristina Kirschner, Tamir Chandra, Vladimir Kiselev, David Flores-Santa Cruz, Iain C Macaulay, Hyun Jun Park, Juan Li, David G Kent, Rupa Kumar, Dean C Pask, Tina L Hamilton, Martin Hemberg, Wolf Reik, Anthony R Green
Aging of the hematopoietic stem cell (HSC) compartment is characterized by lineage bias and reduced stem cell function, the molecular basis of which is largely unknown. Using single-cell transcriptomics, we identified a distinct subpopulation of old HSCs carrying a p53 signature indicative of stem cell decline alongside pro-proliferative JAK/STAT signaling. To investigate the relationship between JAK/STAT and p53 signaling, we challenged HSCs with a constitutively active form of JAK2 (V617F) and observed an expansion of the p53-positive subpopulation in old mice...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28537140/molecular-modeling-driven-approach-for-identification-of-janus-kinase-1-inhibitors-through-3d-qsar-docking-and-molecular-dynamics-simulations
#7
Ramesh Itteboina, Srilata Ballu, Sree Kanth Sivan, Vijjulatha Manga
Janus kinase 1 (JAK 1) belongs to the JAK family of intracellular nonreceptor tyrosine kinase. JAK-signal transducer and activator of transcription (JAK-STAT) pathway mediate signaling by cytokines, which control survival, proliferation and differentiation of a variety of cells. Three-dimensional quantitative structure activity relationship (3 D-QSAR), molecular docking and molecular dynamics (MD) methods was carried out on a dataset of Janus kinase 1(JAK 1) inhibitors. Ligands were constructed and docked into the active site of protein using GLIDE 5...
May 24, 2017: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/28536818/bayesian-bivariate-survival-analysis-using-the-power-variance-function-copula
#8
Jose S Romeo, Renate Meyer, Diego I Gallardo
Copula models have become increasingly popular for modelling the dependence structure in multivariate survival data. The two-parameter Archimedean family of Power Variance Function (PVF) copulas includes the Clayton, Positive Stable (Gumbel) and Inverse Gaussian copulas as special or limiting cases, thus offers a unified approach to fitting these important copulas. Two-stage frequentist procedures for estimating the marginal distributions and the PVF copula have been suggested by Andersen (Lifetime Data Anal 11:333-350, 2005), Massonnet et al...
May 23, 2017: Lifetime Data Analysis
https://www.readbyqxmd.com/read/28536310/the-prognostic-values-of-signal-transducers-activators-of-transcription-family-in-ovarian-cancer
#9
Saisai Li, Bo Sheng, Menghuang Zhao, Qi Shen, Haiyan Zhu, Xueqiong Zhu
Signal transducers activators of transcription (STATs), a family of latent cytoplasmic transcription factors, are composed of seven identified members (STAT1, STAT2, STAT3, STAT4, STAT5a, STAT5b, STAT6). STATs are associated with several biological processes such as cell proliferation, invasion and metastasis in various cancer types. In addition, STATs family have been well studied as a prognostic predictor for a considerable number of solid tumors. However, the prognostic value of STATs family in ovarian cancer patients remains unclear...
May 23, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28532995/histological-subtypes-of-hepatocellular-carcinoma-are-related-to-gene-mutations-and-molecular-tumour-classification
#10
Julien Calderaro, Gabrielle Couchy, Sandrine Imbeaud, Giuliana Amaddeo, Eric Letouzé, Jean-Frédéric Blanc, Christophe Laurent, Yacine Hajji, Daniel Azoulay, Paulette Bioulac-Sage, Jean-Charles Nault, Jessica Zucman-Rossi
BACKGROUND AND AIMS: Our increasing understanding of hepatocellular carcinoma (HCC) biology holds promise for personalized care, however its translation into clinical practice requires a precise knowledge of its relationship to tumour phenotype. METHODS: We aimed at investigating molecular-phenotypic correlations in a large series of HCC. To this purpose, 343 surgically resected HCC were investigated by pathological review, immunohistochemistry, gene expression profiling and sequencing...
May 19, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28532174/subsequent-thoracic-cancers-among-patients-diagnosed-with-lung-cancer-a-seer-database-analysis
#11
Omar Abdel-Rahman, Winson Cheung
BACKGROUND: Population-based data on the development of subsequent thoracic cancers following the initial diagnosis of lung cancer are scarce. We evaluated this clinical scenario in lung cancer patients registered within the Surveillance, Epidemiology and End Results (SEER) database. METHODS: The SEER database (1988-2013) was queried using the SEER*Stat program to determine the clinico-pathological features of lung cancer patients who develop subsequent thoracic cancers as well as the characteristics of these subsequent cancers...
May 22, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28529955/identification-of-transcriptional-modules-and-key-genes-in-chickens-infected-with-salmonella-enterica-serovar-pullorum-using-integrated-coexpression-analyses
#12
Bao-Hong Liu, Jian-Ping Cai
Salmonella enterica Pullorum is one of the leading causes of mortality in poultry. Understanding the molecular response in chickens in response to the infection by S. enterica is important in revealing the mechanisms of pathogenesis and disease progress. There have been studies on identifying genes associated with Salmonella infection by differential expression analysis, but the relationships among regulated genes have not been investigated. In this study, we employed weighted gene coexpression network analysis (WGCNA) and differential coexpression analysis (DCEA) to identify coexpression modules by exploring microarray data derived from chicken splenic tissues in response to the S...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28528355/increased-retinol-free-rbp4-contributes-to-insulin-resistance-in-gestational-diabetes-mellitus
#13
Yanmin Chen, Ping Lv, Mengkai Du, Zhaoxia Liang, Menglin Zhou, Danqing Chen
PURPOSE: Retinol-binding protein 4 (RBP4) is a circulating retinol transporter that is strongly associated with insulin resistance. The aim of this study was to evaluate the RBP4 and retinol level in rat model of gestational diabetes mellitus and the relationship between retinol-free RBP4 (apo-RBP4), retinol-bound RBP4 (holo-RBP4) and insulin resistance. METHODS: Pregnant rats were administered streptozotocin to induce diabetes. The RBP4 and retinol levels were evaluated in GDM and normal pregnant rats...
May 20, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28527256/-stat3-activation-by-hypoxia-in-in-vitro-models-of-cervix-cancer-and-endothelial-cells
#14
Óscar Ortega, Alejandro Ondo-Méndez, Ruth Garzón
INTRODUCTION: The biological behavior of cancer cells is influenced by the tumor microenvironment in which they develop. In this context, stressor stimuli such as hypoxia are considered critical for tumor development and therapeutic management. Cellular response to various stimuli is evidenced in the activation of intracellular signaling pathways such as JAK/STAT, which is one of the most important for its effects in differentiation and cell proliferation. OBJECTIVE: To evaluate the condition of the JAK/STAT pathway through the expression/activation of the STAT3 protein in cervix cancer cells (HeLa) and endothelial cells (EA...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28525901/direct-inhibition-of-stat-signaling-by-platinum-drugs-contributes-to-their-anti-cancer-activity
#15
Stanleyson V Hato, Carl G Figdor, Susumu Takahashi, Anja E Pen, Altuna Halilovic, Kalijn F Bol, Angela Vasaturo, Yukie Inoue, Nienke de Haas, Dagmar Verweij, Carla M L Van Herpen, Johannes H Kaanders, Johan H J M van Krieken, Hanneke W M Van Laarhoven, Gerrit K J Hooijer, Cornelis J A Punt, Akira Asai, I Jolanda M de Vries, W Joost Lesterhuis
Platinum-based chemotherapeutics are amongst the most powerful anti-cancer drugs. Although their exact mechanism of action is not well understood, it is thought to be mediated through covalent DNA binding. We investigated the effect of platinum-based chemotherapeutics on signaling through signal transducer and activator of transcription (STAT) proteins, which are involved in many oncogenic signaling pathways. We performed in vitro experiments in various cancer cell lines, investigating the effects of platinum chemotherapeutics on STAT phosphorylation and nuclear translocation, the expression of STAT-modulating proteins and downstream signaling pathways...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525837/differentially-expressed-jak-stat-signaling-pathway-genes-and-target-micrornas-in-the-spleen-of-necrotic-enteritis-afflicted-chicken-lines
#16
Anh Duc Truong, Deivendran Rengaraj, Yeojin Hong, Cong Thanh Hoang, Yeong Ho Hong, Hyun S Lillehoj
The JAK signal transducer and STAT signaling pathway is an important regulator of cell proliferation, differentiation, survival, motility, apoptosis, immune response, and development. In this study, we used RNA-Sequencing, qRT-PCR, and bioinformatics tools to investigate the differential expression of JAK-STAT pathway genes, their interactions, and regulators in the spleen of two genetically disparate chicken lines (Marek's disease-resistant line 6.3 and MD-susceptible line 7.2) induced necrotic enteritis (NE) disease by co-infection with Eimeria maxima and Clostridium perfringens...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28523588/advances-in-the-development-of-janus-kinase-inhibitors-in-inflammatory-bowel-disease-future-prospects
#17
Mathurin Flamant, Josselin Rigaill, Stephane Paul, Xavier Roblin
Inflammatory bowel disease (IBD) is caused by a dysregulation of the immune system, inducing the production of proinflammatory cytokines and adhesion molecules. A better understanding of the mucosal immune response in IBD has led to the development of new drugs directed at inflammatory cytokines and leukocyte-trafficking molecules. Beyond tumor necrosis factor antagonists and anti-integrin molecules, which act by blocking the interaction between gut-specific lymphocytes and their receptor on vascular endothelium, the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling pathway represents a new target in IBD...
May 18, 2017: Drugs
https://www.readbyqxmd.com/read/28522855/phosphoserine-aminotransferase-1-is-associated-to-poor-outcome-on-tamoxifen-therapy-in-recurrent-breast-cancer
#18
Tommaso De Marchi, Mieke A Timmermans, Anieta M Sieuwerts, Marcel Smid, Maxime P Look, Nicolai Grebenchtchikov, Fred C G J Sweep, Jan G Smits, Viktor Magdolen, Carolien H M van Deurzen, John A Foekens, Arzu Umar, John W Martens
In a previous study, we detected a significant association between phosphoserine aminotransferase 1 (PSAT1) hyper-methylation and mRNA levels to outcome to tamoxifen treatment in recurrent disease. We here aimed to study the association of PSAT1 protein levels to outcome upon tamoxifen treatment and to obtain more insight in its role in tamoxifen resistance. A cohort of ER positive, hormonal therapy naïve primary breast carcinomas was immunohistochemically (IHC) stained for PSAT1. Staining was analyzed for association with patient's time to progression (TTP) and overall response on first-line tamoxifen for recurrent disease...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522827/involvement-of-gata1-and-sp3-in-the-activation-of-the-murine-sting-gene-promoter-in-nih3t3-cells
#19
Yan-Yan Xu, Rui Jin, Guo-Ping Zhou, Hua-Guo Xu
Stimulator of Interferon Gene (STING) is a key mediator of innate immune signaling. STING plays a pivotal role in the pathogenesis of many diseases including infectious diseases, auto-immune diseases and cancer. Many studies have been carried out recently in the field of STING-regulated pathway, however, rarely of transcriptional mechanisms. To characterize the murine STING (mSTING) promoter, we cloned a series of different nucleotide sequences of the 5'-flanking region of the mSTING gene. Transient transfection of promoter-reporter recombinant plasmids and luciferase assay illustrated the region (-77/+177) relative to the transcription start site (TSS) of the mSTING gene was sufficient for full promoter activity...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522550/suppression-of-microrna-135b-5pprotects-againstmyocardial-ischemia-reperfusion-injury-by-activatingjak2-stat3-signaling-pathway-in-mice-duringsevofluraneanesthesia
#20
Xiao-Juan Xie, Dong-Mei Fan, Kai Xi, Ya-Wei Chen, Peng-Wei Qi, Qian-Hui Li, Liang Fang, Li-Gang Ma
The study aims to explore the effects of miR-135b-5p on myocardial ischemia/reperfusion (I/R) injuries by regulating JAK2/STAT signaling pathway by mediating inhalation anesthesia with sevoflurane. A sum of 120 healthy Wistar male mice was assigned into six groups. Left ventricular ejection fraction (LVEF) and left ventricular shortening fraction (LVSF) were detected. Cardiomyocyte apoptosis was determined by TUNEL assay. MiR-135b-5p expression, mRNA and protein expression of p-STAT3, p-JAK2, STAT3, JAK2, Bcl2 and Bax were detected by qRT-PCR and Western blotting...
May 18, 2017: Bioscience Reports
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