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https://www.readbyqxmd.com/read/28532995/histological-subtypes-of-hepatocellular-carcinoma-are-related-to-gene-mutations-and-molecular-tumour-classification
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28521727/comparative-genomic-analysis-of-innate-immunity-reveals-novel-and-conserved-components-in-crustacean-food-crop-species
#12
Alvina G Lai, A Aziz Aboobaker
BACKGROUND: Growing global demands for crustacean food crop species have driven large investments in aquaculture research worldwide. However, large-scale production is susceptible to pathogen-mediated destruction particularly in developing economies. Thus, a thorough understanding of the immune system components of food crop species is imperative for research to combat pathogens. RESULTS: Through a comparative genomics approach utilising extant data from 55 species, we describe the innate immune system of the class Malacostraca, which includes all food crop species...
May 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28521411/reduced-rkip-expression-levels-are-associated-with-frequent-non-small-cell-lung-cancer-metastasis-and-stat3-phosphorylation-and-activation
#13
Ansheng Wang, Guixin Duan, Chengling Zhao, Yuan Gao, Xuegang Liu, Zuyi Wang, Wei Li, Kangwu Wang, Wei Wang
The current study examined the role of Raf kinase inhibitor protein (RKIP) in non-small cell lung cancer (NSCLC) metastasis. A total of 100 patients with NSCLC were recruited following pathological diagnosis in the First Affiliated Hospital of Bengbu Medical College. The patients were classified and statistically analyzed according to their clinicopathological characteristics and tumor-node-metastasis stage. Paired tumor tissue and adjacent non-tumor tissue samples were subject to pathological diagnosis and western blot analysis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515507/implementing-a-tech-check-tech-program-at-a-university-health-system
#14
Scott A Tarver, Javier Palacios, Reed Hall, A Crystal Franco-Martinez
Background: Tech-Check-Tech (TCT) allows a pharmacy technician to perform the final check of medications prepared by another technician. The effect of a TCT program on the time required to process medications in a hospital pharmacy has not been previously reported. Objective: To evaluate the effect of implementing a TCT program on the time required to prepare, check, and deliver medications to automated medication supply systems (AMSS) located throughout an academic medical center. Methods: The primary outcome was the difference in mean total time required to process AMSS medications between pre- and post-implementation periods...
April 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/28513614/recurrent-somatic-jak-stat-pathway-variants-within-a-runx1-mutated-pedigree
#15
Kiran Tawana, Jun Wang, Péter A Király, Krisztián Kállay, Gábor Benyó, Marianna Zombori, Judit Csomor, Ahad Al Seraihi, Ana Rio-Machin, András Matolcsy, Claude Chelala, Jamie Cavenagh, Jude Fitzgibbon, Csaba Bödör
Germline variants within the transcription factor RUNX1 are associated with familial platelet disorder and acute leukemia in over 40% of carriers. At present, the somatic events triggering leukemic transformation appear heterogeneous and profiles of leukemia initiation across family members are poorly defined. We report a new RUNX1 family where three sisters harboring a germline nonsense RUNX1 variant, c.601C>T (p.(Arg201*)), developed acute myelomonocytic leukemia (AML) at 5 years of age. Whole-exome sequencing of tumor samples revealed all three siblings independently acquired variants within the JAK-STAT pathway, specifically targeting JAK2 and SH2B3 (a negative regulator of JAK2), while also sharing the 46/1 haplotype linked with sporadic JAK2-positive myeloproliferative neoplasms...
May 17, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28511927/coordinated-regulation-of-ifitm1-2-and-3-genes-by-an-ifn-responsive-enhancer-through-long-range-chromatin-interactions
#16
Ping Li, Ming-Lei Shi, Wen-Long Shen, Zhang Zhang, De-Jian Xie, Xiang-Yuan Zhang, Chao He, Yan Zhang, Zhi-Hu Zhao
Interferon-induced transmembrane protein (IFITM) 1, 2 and 3 are a family of interferon (IFN)-induced transmembrane proteins that block entry of a broad spectrum of pathogens. However, the transcriptional regulation of these genes, especially whether there exists any enhancers and their roles during the IFN induction process remain elusive. Here, combining episomal luciferase reporter assay and in vivo genome editing, we identified an IFNβ-responsive enhancer located 35kb upstream of IFITM3 gene promoter upregulating the IFNβ-induced expression of IFITM1, 2 and 3 genes, thus contributing to IFNβ-mediated resistance to influenza A virus (IAV) infection...
May 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28511114/bergapten-prevents-lipopolysaccharide-induced-inflammation-in-raw264-7-cells-through-suppressing-jak-stat-activation-and-ros-production-and-increases-the-survival-rate-of-mice-after-lps-challenge
#17
Yi Zhou, Jing Wang, Weidong Yang, Xiaowen Qi, Lei Lan, Lan Luo, Zhimin Yin
Bergapten (BG) is a cumarine-derivate compound in many medicinal plants. Here, in vitro and in vivo experimental results indicated that BG possesses anti-inflammatory properties, Based on this, we further investigated the precise molecular mechanisms of BG in LPS-stimulated inflammation response. Studies revealed that BG inhibited LPS-stimulated productions of TNF-α, IL-1β, IL-6, PGE2 and NO as well as the expression of iNOS and COX-2, and at the same time, it increased LPS-induced release of IL-10 in a dose-dependent manner in RAW264...
May 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28510479/increased-expression-of-p22phox-mediates-airway-hyperresponsiveness-in-an-experimental-model-of-asthma
#18
Chandran Nagaraj, Hans Michael Haitchi, Akos Heinemann, Peter Howarth, Andrea Olschewski, Leigh M Marsh
AIM: Chronic airway diseases such as asthma are associated with increased production of reactive oxygen species (ROS) and oxidative stress. Endogenous NADPH oxidases are a major source of superoxide in lung, but their underlying role in asthma pathology is poorly understood. We sought to characterize the involvement of NADPH oxidase in allergic asthma by studying the role of CYBA (p22phox) in human asthma and murine house dust mite (HDM)-induced allergic airway inflammation. RESULTS: Increased expression and localisation of p22-PHOX was observed in biopsies of asthmatic patients...
May 16, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28508651/sugar-breathing-glycopolymersomes-for-regulating-glucose-level
#19
Yufen Xiao, Hui Sun, Jianzhong Du
Diabetes mellitus is a chronic, life-threatening illness that affects people of every age and ethnicity. It is a long-suffering pain for those who are affected and must regulate their blood glucose level by frequent subcutaneous injection of insulin every day. Herein, we propose a non-insulin and antidiabetic-drug-free strategy for regulating blood glucose level by a nano-sized "sugar sponge" which is a lectin-bound glycopolymersome capable of regulating glucose due to the dynamic recognition between the lectin and different carbohydrates...
May 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28506695/d816v-mutation-in-the-kit-gene-activation-loop-has-a-greater-cell-proliferative-and-anti-apoptotic-ability-than-n822k-mutation-in-core-binding-factor-acute-myeloid-leukemia
#20
Ikuko Omori, Hiroki Yamaguchi, Koichi Miyake, Noriko Miyake, Tomoaki Kitano, Koiti Inokuchi
In core binding factor-acute myeloid leukemia (CBF-AML), there have been conflicting reports regarding the status as an unfavorable prognostic factor of mutation in the KIT gene, whose significance therefore remains unclear. We have reported previously that prognosis differs between the KIT D816V and N822K mutations. In the present study, we undertook an in vitro comparison of the cell-proliferative and anti-apoptotic ability of D816V and N822K. We transduced these KIT mutations into the IL-3-dependent cell line TF-1 (TF-1 KIT(D816V), TF-1 KIT(N822K))...
May 12, 2017: Experimental Hematology
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