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https://www.readbyqxmd.com/read/28748833/identification-and-characterization-of-differentially-expressed-genes-from-human-microglial-cell-samples-infected-with-japanese-encephalitis-virus
#1
Manoj Kumar Gupta, Santosh Kumar Behera, Budheswar Dehury, Namita Mahapatra
BACKGROUND & OBJECTIVES: Limited studies have been reported on Japanese encephalitis (JE) with reference to microarray data analysis. The present study involved an in silico approach for identification and characterization of differentially expressed genes in human microglial cell (CHME3) samples, infected with P20778 strain of Japanese encephalitis virus (JEV). METHODS: Gene expression data (GSE57330) belonging to mRNA expression profile of CHME3 cells infected with JEV, was downloaded from the gene expression omnibus (GEO) database, processed and normalized by robust multichip averaging (RMA) method using affy packages of R...
April 2017: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28747560/germline-variations-at-jak2-tert-hbs1l-myb-and-mecom-and-the-risk-of-myeloproliferative-neoplasms-in-taiwanese-population
#2
Yi-Hao Chiang, Yu-Cheng Chang, Huan-Chau Lin, Ling Huang, Chun-Chia Cheng, Wei-Ting Wang, Hung-I Cheng, Nai-Wen Su, Caleb Gon-Shen Chen, Johnson Lin, Yi-Fang Chang, Ming-Chih Chang, Ruey-Kuen Hsieh, Wen-Chien Chou, Ken-Hong Lim, Yuan-Yeh Kuo
Germline variations at JAK2, TERT, HBS1L-MYB and MECOM have been found to associate with myeloproliferative neoplasms (MPNs) in European populations. Whether these germline variations are associated with MPNs in Taiwanese population is obscure. Here we aimed to evaluate the association of five germline variations (JAK2 46/1 haplotype tagged by rs12343867, JAK2 intron 8 rs12339666, TERT rs2736100, HBS1L-MYB rs9376092 and MECOM rs2201862) and the risk of MPNs in Taiwanese population. A total of 178 MPN patients (109 essential thrombocythemia, 54 polycythemia vera and 15 primary myelofibrosis) were enrolled into this study...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28744014/low-burden-tp53-mutations-in-chronic-phase-of-myeloproliferative-neoplasms-association-with-age-hydroxyurea-administration-disease-type-and-jak2-mutational-status
#3
B Kubesova, S Pavlova, J Malcikova, J Kabathova, L Radova, N Tom, B Tichy, K Plevova, B Kantorova, K Fiedorova, M Slavikova, V Bystry, J Kissova, B Gisslinger, H Gisslinger, M Penka, J Mayer, R Kralovics, S Pospisilova, M Doubek
The multistep process of TP53 mutation expansion during myeloproliferative neoplasm (MPN) transformation into acute myeloid leukemia (AML) has been documented retrospectively. It is currently unknown how common TP53 mutations with low variant allele frequency (VAF) are, whether they are linked to hydroxyurea (HU) cytoreduction, and what disease progression risk they carry. Using ultra-deep next-generation sequencing, we examined 254 MPN patients treated with HU, interferon alpha-2a or anagrelide and 85 untreated patients...
July 24, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28742207/socs3-overexpression-enhances-adm-resistance-in-bladder-cancer-t24-cells
#4
M-Z Li, D-H Lai, H-B Zhao, Z Chen, Q-X Huang, J Situ
OBJECTIVE: JAK-STAT3 signaling pathway widely participates in cell proliferation and apoptosis. Suppressor of cytokine signaling 3 (SOCS3) is a negative regulator of JAK-STAT3. SOCS3 downregulation is associated with drug resistance in breast cancer and leukemia. However, its role in bladder cancer drug resistance is still unclear. This study established ADM resistant bladder cancer cell model to investigate the role of SOCS3-JAK/STAT3 signaling pathway ADM resistance. MATERIALS AND METHODS: ADM drug resistant cell line T24/ADM was established...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28737134/nephrotic-syndrome-in-primary-myelofibrosis-with-renal-extramedullary-hematopoiesis-and-glomerulopathy-in-the-jak-inhibitor-era
#5
Rachele Del Sordo, Rachele Brugnano, Carla Covarelli, Gioia Fiorucci, Franca Falzetti, Giorgio Barbatelli, Emidio Nunzi, Angelo Sidoni
Primary myelofibrosis (PMF) is an uncommon form of myeloproliferative neoplasm (MPN) characterized by a proliferation of predominantly megakaryocytes and granulocytes in the bone marrow that, in fully-developed disease, is associated with reactive deposition of fibrous connective tissue, extramedullary hematopoiesis (EMH), and splenomegaly. Kidney involvement is rare and clinically presents with proteinuria, nephrotic syndrome, and renal insufficiency. Renal damage can be due to EMH and glomerulopathy. Renal EMH presents three patterns: infiltration of the interstitium with possible renal failure caused by functional damage of parenchyma and vessels, infiltration of capsule and pericapsular adipose tissue, and sclerosing mass-like lesions that can cause hydronephrosis and hydroureter with obstructive uropathy and renal failure...
July 24, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28737053/efficacy-of-baricitinib-in-the-treatment-of-rheumatoid-arthritis
#6
Christophe Richez, Marie-Elise Truchetet, Marie Kostine, Thierry Schaeverbeke, Bernard Bannwarth
although the outcome for patients with rheumatoid arthritis (ra) has improved in the past decades, adequate disease control cannot be achieved in a substantial proportion of patients. new drugs with a novel mechanism of action, may represent a valuable addition to the current armamentarium. Areas covered: This review focuses on the pharmacodynamics and pharmacokinetics of baricitinib. Furthermore, the article summarizes and comments the drug's efficacy and safety profile in RA patients. Expert opinion: Baricitinib is an oral targeted synthetic (ts) disease-modifying antirheumatic drug (DMARD) that mainly inhibits JAK1 and JAK2...
July 27, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28734796/clonal-composition-of-human-ovarian-cancer-based-on-copy-number-analysis-reveals-a-reciprocal-relation-with-oncogenic-mutation-status
#7
Kazuko Sakai, Masayo Ukita, Jeanette Schmidt, Longyang Wu, Marco De Velasco, Alan Roter, Luis Jevons, Kazuto Nishio, Masaki Mandai
Intratumoral heterogeneity of cancer cells remains largely unexplored. Here we investigated the composition of ovarian cancer and its biological relevance. A whole-genome single nucleotide polymorphism array was applied to detect the clonal composition of 24 formalin-fixed, paraffin-embedded samples of human ovarian cancer. Genome-wide segmentation data consisting of the log2 ratio (log2R) and B allele frequency (BAF) were used to calculate an estimate of the clonal composition number (CC number) for each tumor...
July 19, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28733560/mir-122-socs1-jak2-axis-regulates-allergic-inflammation-and-allergic-inflammation-promoted-cellular-interactions
#8
Kyeonga Noh, Misun Kim, Youngmi Kim, Hanearl Kim, Hyuna Kim, Jaehwan Byun, Yeongseo Park, Hansoo Lee, Yun Sil Lee, Jongseon Choe, Young Myeong Kim, Dooil Jeoung
The regulatory role of suppressor of cytokine signaling 1 (SOCS1) in inflammation has been reported. However, its role in allergic inflammation has not been previously reported. SOCS1 mediated in vitro and in vivo allergic inflammation. Histone deacetylase-3 (HDAC3), a mediator of allergic inflammation, interacted with SOCS1, and miR-384 inhibitor, a positive regulator of HDAC3, induced features of allergic inflammation in an SOCS1-dependent manner. miRNA array analysis showed that the expression of miR-122 was decreased by antigen-stimulation...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28733177/transjugular-local-thrombolysis-with-without-tips-in-patients-with-acute-non-cirrhotic-non-malignant-portal-vein-thrombosis
#9
Christoph Klinger, Bettina Riecken, Arthur Schmidt, Andrea De Gottardi, Benjamin Meier, Jaime Bosch, Karel Caca
BACKGROUND & AIMS: Therapeutic anticoagulation is the standard treatment in patients with acute non-cirrhotic portal vein thrombosis (PVT). In critically ill patients, anticoagulation only may not suffice to achive rapid and stable recanalization. This study evaluates efficacy and safety of transjugular interventional therapy in acute non-cirrhotic PVT. METHODS: This retrospective study includes 17 consecutive patients with acute noncirrhotic, non-malignant PVT...
June 27, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28732559/socs-1-is-involved-in-tnf-%C3%AE-induced-mitochondrial-dysfunction-and-apoptosis-in-renal-tubular-epithelial-cells
#10
Chunyang Du, Fang Yao, Yunzhuo Ren, Yunxia Du, Jinying Wei, Haijiang Wu, Huijun Duan, Yonghong Shi
Tumor necrosis factor-α (TNF-α) is suggested to induce mitochondrial dysfunction and apoptosis of renal tubular epithelial cells that possibly exacerbates renal function in chronic kidney disease (CKD). Here we investigated whether suppressor of cytokine signaling-1 (SOCS-1), an inhibitor of cytokine signaling, was involved in TNF-α-induced human renal tubular epithelial cells (HKCs) oxidative stress and apoptosis. TNF-α promoted the protein and mRNA expression of SOCS-1 in a time and dose dependent manner, along with increased cell apoptosis and activation of apoptosis signal regulating kinase-1(ASK1) in HKCs...
June 30, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28732065/direct-targets-of-pstat5-signalling-in-erythropoiesis
#11
Kevin R Gillinder, Hugh Tuckey, Charles C Bell, Graham W Magor, Stephen Huang, Melissa D Ilsley, Andrew C Perkins
Erythropoietin (EPO) acts through the dimeric erythropoietin receptor to stimulate proliferation, survival, differentiation and enucleation of erythroid progenitor cells. We undertook two complimentary approaches to find EPO-dependent pSTAT5 target genes in murine erythroid cells: RNA-seq of newly transcribed (4sU-labelled) RNA, and ChIP-seq for pSTAT5 30 minutes after EPO stimulation. We found 302 pSTAT5-occupied sites: ~15% of these reside in promoters while the rest reside within intronic enhancers or intergenic regions, some >100kb from the nearest TSS...
2017: PloS One
https://www.readbyqxmd.com/read/28730475/characterization-of-ligand-binding-to-pseudokinases-using-a-thermal-shift-assay
#12
Isabelle S Lucet, James M Murphy
The protocol herein describes a robust and proven method for the measurement of pseudokinase-ligand interaction using a fluorescence-based thermal shift assay (TSA). Pseudokinases are kinase-like proteins that have recently emerged as crucial regulatory modules of signal transduction pathways and may well represent a novel class of drug targets. However, unlike kinases, the regulatory activity of pseudokinases is mainly conferred through protein-protein interactions. Understanding the mechanisms that underlie pseudokinase conformational changes through ligand binding and how such conformational changes can tune signaling pathways is a necessary step to unravel their biological functions...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28729389/severe-energy-deficit-up-regulates-leptin-receptors-leptin-signaling-and-ptp1b-in-human-skeletal-muscle
#13
Ismael Perez-Suarez, Jesus Gustavo Ponce-Gonzalez, Jaime de La Calle-Herrero, Jose Losa-Reyna, Marcos Martin-Rincon, David Morales-Alamo, Alfredo Santana, Hans-Christer Holmberg, Jose A L Calbet
In obesity, leptin receptors (OBR) and leptin signaling in skeletal muscle are down-regulated. To determine whether OBR and leptin signaling are up-regulated with a severe energy deficit fifteen overweight men were assessed before (PRE), after 4 days of caloric restriction (3.2 Kcal/kg BW/day) in combination with prolonged exercise (CRE) (8h walking + 45min single-arm cranking/day) to induce an energy deficit of ~5500 Kcal/d, and following 3 days of control diet (isoenergetic) and reduced exercise (CD). During CRE, the diet consisted solely of whey protein (n=8) or sucrose (n=7) (0...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28728747/endothelial-to-mesenchymal-transition-in-bone-marrow-and-spleen-of-primary-myelofibrosis
#14
Benedetta Gaia Erba, Cristian Gruppi, Monica Corada, Federica Pisati, Vittorio Rosti, Niccolo' Bartalucci, Jean-Luc Villeval, Alessandro Maria Vannucchi, Giovanni Barosi, Alessandra Balduini, Elisabetta Dejana
Primary myelofibrosis is characterized by the development of fibrosis in the bone marrow that contributes to ineffective hematopoiesis. Bone marrow fibrosis is the result of a complex and not yet fully understood interaction among megakaryocytes, myeloid cells, fibroblasts, and endothelial cells. Here, we report that >30% of the endothelial cells in the small vessels of the bone marrow and spleen of patients with primary myelofibrosis have a mesenchymal phenotype, which is suggestive of the process known as endothelial-to-mesenchymal transition (EndMT)...
August 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28725653/calr-positive-myeloproliferative-disorder-in-a-patient-with-ph-positive-chronic-myeloid-leukemia-in-durable-treatment-free-remission-a-case-report
#15
Irene Dogliotti, Carmen Fava, Anna Serra, Enrico Gottardi, Filomena Daraio, Francesca Carnuccio, Emilia Giugliano, Monica Bocchia, Giuseppe Saglio, Giovanna Rege-Cambrin
Current diagnostic criteria for Philadelphia-negative myeloproliferative neoplasia (MPN) have been redefined by the discovery of Janus kinase 2 (JAK2), myeloproliferative leukemia (MPL) and calreticulin (CALR) genetic alterations. Only few cases of coexistence of CALR-mutated MPN and Philadelphia-positive chronic myeloid leukemia (CML) have been described so far. Here we report the case of a patient with CML diagnosed in 2001, treated with imatinib and pegylated interferon (IFN) frontline. She reached complete molecular remission (CMR) and discontinued imatinib, maintaining treatment free remission...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28724798/hepatic-jak2-protects-against-atherosclerosis-through-circulating-igf-1
#16
Tharini Sivasubramaniyam, Stephanie A Schroer, Angela Li, Cynthia T Luk, Sally Yu Shi, Rickvinder Besla, David W Dodington, Adam H Metherel, Alex P Kitson, Jara J Brunt, Joshua Lopes, Kay-Uwe Wagner, Richard P Bazinet, Michelle P Bendeck, Clinton S Robbins, Minna Woo
Atherosclerosis is considered both a metabolic and inflammatory disease; however, the specific tissue and signaling molecules that instigate and propagate this disease remain unclear. The liver is a central site of inflammation and lipid metabolism that is critical for atherosclerosis, and JAK2 is a key mediator of inflammation and, more recently, of hepatic lipid metabolism. However, precise effects of hepatic Jak2 on atherosclerosis remain unknown. We show here that hepatic Jak2 deficiency in atherosclerosis-prone mouse models exhibited accelerated atherosclerosis with increased plaque macrophages and decreased plaque smooth muscle cell content...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28722170/activation-of-the-b-cell-receptor-successively-activates-nf-%C3%AE%C2%BAb-and-stat3-in-chronic-lymphocytic-leukemia-cells
#17
Uri Rozovski, David M Harris, Ping Li, Zhiming Liu, Preetesh Jain, Ivo Veletic, Alessandra Ferrajoli, Jan Burger, Philip Thompson, Nitin Jain, William Wierda, Michael J Keating, Zeev Estrov
In chronic lymphocytic leukemia (CLL) cells, both interleukin-6 (IL-6) and the B-cell receptor (BCR) activate Janus kinase 2 (JAK2) and induce the phosphorylation of signal transduction and activator of transcription 3 (STAT3) on tyrosine 705 residues. However, whereas IL-6 phosphorylates STAT3 within 15 minutes, stimulation of the BCR with anti-immunoglobulin M (IgM) antibodies phosphorylates STAT3 in 2-4 hours. Here we show that this process takes longer because it requires transcriptional activity of NF-κB...
July 19, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28721072/cxcl12-suppresses-cisplatin-induced-apoptosis-through-activation-of-jak2-stat3-signaling-in-human-non-small-cell-lung-cancer-cells
#18
Meng Wang, Tie Lin, Yicun Wang, Song Gao, Zhaoyang Yang, Xuan Hong, Gongyan Chen
AIMS: Poor efficacy of chemotherapy drugs in non-small-cell lung cancer (NSCLC) is the key reason for the failure of treatment, but the mechanism of this remains largely unknown. Stromal cell-derived factor 1-alpha (SDF-1α/CXCL12) is a small chemotactic cytokine protein that plays an important role in tumor progression. In this study, we investigated the anti-apoptotic mechanism of the CXCL12/CXCR4 axis in response to cisplatin, a commonly used chemotherapeutic drug, in human lung adenocarcinoma A549 cells...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28715864/in-vitro-and-in-vivo-anticancer-activity-of-2-acetyl-benzylamine-isolated-from-adhatoda-vasica-l-leaves
#19
C Balachandran, Y Arun, B Sangeetha, V Duraipandiyan, S Awale, N Emi, S Ignacimuthu, P T Perumal
One of the important aims of drug discovery for cancer is to find therapeutic agents from natural products that are effective and safe for cancer treatment. In the current study, an alkaloid, 2-acetyl-benzylamine, isolated from Adhatoda vasica, was screened for potent anticancer properties against leukemia cells. We used seven different types of leukemia cells such as CEM, NB-4, MOLM-14, Jurkat, IM-9, K562 and HL-60 for cytotoxic studies. 2-acetyl-benzylamine showed significant cytotoxic properties against MOLM-14 and NB-4 cells with IC50 values of 0...
July 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28713982/protective-effects-of-socs3-overexpression-in-high-glucose%C3%A2-induced-lung-epithelial-cell-injury-through-the-jak2-stat3-pathway
#20
Wei-Na Duan, Zhong-Yuan Xia, Min Liu, Qian Sun, Shao-Qing Lei, Xiao-Jing Wu, Qing-Tao Meng, Yan Leng
Previous studies have suggested that the Janus kinase (JAK)/signal transducers and activators of transcription (STAT) pathway is involved in hyperglycemia‑induced lung injury. The present study aimed to investigate the roles of suppressor of cytokine signaling3 (SOCS3) in the regulation of JAK2/STAT3 activation following high glucose (HG) treatment in A549 human pulmonary epithelial cells. Cell viability was evaluated using Cell Counting Kit-8 and lactate dehydrogenase assays. HG‑induced inflammatory injury in A549 cells was assessed through the evaluation of interleukin‑6 (IL‑6) and tumor necrosis factor‑α (TNF‑α) levels using ELISA...
September 2017: Molecular Medicine Reports
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