Now showing items 481-500 of 1059

    • Multiple faces of succinate beyond metabolism in blood 

      Grimolizzi, Franco; Arranz, Lorena (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-28)
      Succinate is an essential intermediate of the tricarboxylic acid cycle that exerts pleiotropic roles beyond metabolism in both physiological and pathological conditions. Recent evidence obtained in mouse models shows its essential role regulating blood cell function through various mechanisms that include pseudohypoxia responses by hypoxiainducible factor-1α activation, post-translational modifications ...
    • Enterococcus faecium produces membrane vesicles containing virulence factors and antimicrobial resistance related proteins 

      Wagner, Theresa; Joshi, Bishnu; James Peter, Jessin Janice; Askarian, Fatemeh; Skalko-Basnet, Natasa; Hagestad, Ole Christian; Mekhlif, Ahmed; Wai, Sun Nyunt; Hegstad, Kristin; Johannessen, Mona (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-30)
      <i>Enterococcus faecium</i> is a commensal but also a bacteremia causing pathogen, which is inherently resistant to several antimicrobials and has a great ability to acquire new traits. Bacterial membrane vesicles (MVs) are increasingly recognized as a mode of cell-free communication and a way to deliver virulence factors and/or antimicrobial resistance determinants. These features make MVs interesting ...
    • Presence of high-endothelial venules correlates with a favorable immune microenvironment in oral squamous cell carcinoma 

      Wirsing, Anna Maria; Ervik, Ida Korsnes; Seppola, Marit; Uhlin-Hansen, Lars; Steigen, Sonja Eriksson; Hadler-Olsen, Elin Synnøve (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-07)
      Oral squamous cell carcinomas are associated with a poor prognosis, which may be partly due to functional impairment of the immune response. Lymphocyte recruitment to the tumor site is facilitated by high-endothelial venules, whereas expression of programmed-death ligand 1 (PD-L1) can impair T-cell function. Thus, we hypothesize that these factors are important in shaping the immune response in oral ...
    • CCL17/TARC and CCR4 expression in Merkel cell carcinoma 

      Rasheed, Kashif; Abdulsalam, Ibrahim Afolabi; Fismen, Silje; Grimstad, Øystein; Sveinbjørnsson, Baldur; Moens, Ugo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-31)
      Merkel cell carcinoma (MCC) is a rare, highly aggressive neuroendocrine skin cancer. In more than 80% of the cases, Merkel cell polyomavirus (MCPyV) is a causal factor. The oncogenic potential of MCPyV is mediated through its viral oncoproteins, large T antigen (LT) and small t antigen (sT). To investigate the role of cytokines in MCC, a PCR array analysis for genes encoding inflammatory cytokines ...
    • Nestin-expressing progenitor cells: function, identity and therapeutic implications 

      Bernal Mera, Aurora; Arranz, Lorena (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-14)
      The neuroepithelial stem cell protein, or Nestin, is a cytoskeletal intermediate filament initially characterized in neural stem cells. However, current extensive evidence obtained in in vivo models and humans shows presence of Nestin+ cells with progenitor and/or regulatory functions in a number of additional tissues, remarkably bone marrow. This review presents the current knowledge on the role ...
    • The role of NADPH oxidases in diabetic cardiomyopathy 

      Hansen, Synne Simonsen; Aasum, Ellen; Hafstad, Anne Dragøy (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-25)
      Systemic changes during diabetes such as high glucose, dyslipidemia, hormonal changes and low grade inflammation, are believed to induce structural and functional changes in the cardiomyocyte associated with the development of diabetic cardiomyopathy. One of the hallmarks of the diabetic heart is increased oxidative stress. NADPH-oxidases (NOXs) are important ROS-producing enzymes in the cardiomyocyte ...
    • Nephronectin mediates p38 MAPK‐induced cell viability via its integrin binding enhancer motif 

      Toraskar, Jimita Prashant; Magnussen, Synnøve; Chawla, Konika; Svineng, Gunbjørg; Steigedal, Tonje S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-30)
      Nephronectin (NPNT) is an extracellular matrix (ECM) protein involved in kidney development. We recently reported intracellular NPNT as a potential prognostic marker in breast cancer and that NPNT promotes metastasis in an integrin‐dependent manner. Here, we used reverse‐phase protein array (RPPA) to analyze NPNT‐triggered intracellular signaling in the 66cl4 mouse breast cancer cell line. The results ...
    • Cabazitaxel-loaded Poly(2-ethylbutyl cyanoacrylate) nanoparticles improve treatment efficacy in a patient derived breast cancer xenograft 

      Fusser, Markus; Øverbye, Anders; Pandya, Abhilash D.; Mørch, Ýrr Asbjørg; Borgos, Sven Even F.; Kildal, Wanja; Snipstad, Sofie; Sulheim, Einar; Fleten, Karianne Giller; Askautrud, Hanne Arenberg; Engebraaten, Olav; Flatmark, Kjersti; Iversen, Tore Geir; Sandvig, Kirsten; Skotland, Tore; Mælandsmo, Gunhild Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-04)
      The effect of poly(2-ethyl-butyl cyanoacrylate) nanoparticles containing the cytotoxic drug cabazitaxel was studied in three breast cancer cell lines and one basal-like patient-derived xenograft model grown in the mammary fat pad of immunodeficient mice. Nanoparticle-encapsulated cabazitaxel had a much better efficacy than similar concentrations of free drug in the basal-like patient-derived xenograft ...
    • Kartlegging av miljøgifter i sjøfuglegg fra Sklinna og Røst 

      Huber, Sandra; Nygård, Torgeir; Warner, Nicholas Alexander; Remberger, Mikael; Harju, Mikael; Uggerud, Hilde Thelle; Kaj, Lennart; Schalbach, Martin; Hanssen, Linda (Research report; Forskningsrapport, 2014)
      I dette kartleggingsprosjektet ble analysert konsentrasjonene til en lang rekke uorganiske og organiske miljøgifter, som metaller, organotinn, polysykliske aromatiske hydrokarboner, polyklorerte bifenyler og metabolitter, klorerte parafiner, klororganiske pesticider og andre pesticider, per- og polyfluoralkylstoffer, deklorane pluss, oktaklorostyren, organofosfor flammehemmere, bromerte flammehemmere, ...
    • Basal‐like breast cancer engages tumor‐supportive macrophages via secreted factors induced by extracellular S100A4 

      Prasmickaite, Lina; Tenstad, Ellen; Pettersen, Solveig; Jabeen, Shakila; Egeland, Eivind Valen; Nord, Silje; Pandya, Abhilash D.; Haugen, Mads Haugland; Kristensen, Vessela N.; Børresen-Dale, Anne-Lise; Engebråten, Olav; Mælandsmo, Gunhild Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-09)
      The tumor microenvironment (TME) may influence both cancer progression and therapeutic response. In breast cancer, particularly in the aggressive triple‐negative/basal‐like subgroup, patient outcome is strongly associated with the tumor's inflammatory profile. Tumor‐associated macrophages (TAMs) are among the most abundant immune cells in the TME, shown to be linked to poor prognosis and therapeutic ...
    • Voldsom sløsing med offentlige penger i vitenskapelig publisering 

      Smedsrød, Bård; Longva, Leif; Frantsvåg, Jan Erik (Chronicle; Kronikk, 2018-02-27)
      <i>Ingress</i>: Offentlig finansierte forskere skriver og kvalitetssikrer vitenskapelige artikler. Så tar et tidsskrift over alle økonomiske rettigheter. I neste omgang må forskerne kjøpe tilbake adgangen til de samme artiklene.
    • Synthesis, in vitro and in vivo biological evaluation of new oxysterols as modulators of the liver X receptors 

      Åstrand, Ove Alexander Høgmoen; Viktorsson, Elvar Örn; Kristensen, Aleksander Lim; Ekeberg, Dag; Røberg-Larsen, Hanne; Wilson, Steven Ray Haakon; Gabrielsen, Mari; Sylte, Ingebrigt; Rustan, Arild; Thoresen, G. Hege; Rongved, Pål; Kase, Eili Tranheim (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-26)
      Liver X Receptor (LXR) modulators have shown potential as drugs since they target genes affecting metabolism and fatty acid synthesis. LXR antagonists are of particular interest since they are able to reduce the synthesis of complex fatty acids and glucose uptake. Based on molecular modeling, five new cholesterol mimics were synthesized, where four contained a hydroxyl group in the 22-S-position. ...
    • Genetic variability in the sdrD gene in Staphylococcus aureus from healthy nasal carriers 

      Ajayi, Clement; Åberg, Espen; Askarian, Fatemeh; Sollid, Johanna U Ericson; Johannessen, Mona; Hanssen, Anne Merethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-16)
      <p><i>Background</i>: <i>Staphylococcus aureus</i> cell wall anchored Serine Aspartate repeat containing protein D (<i>sdrD</i>) is a member of the microbial surface component recognising adhesive matrix molecules (MSCRAMMs). It is involved in the bacterial adhesion and virulence. However the extent of genetic variation in <i>S. aureus sdrD</i> gene within isolates from healthy carriers are not ...
    • A gender specific improved survival related to stromal miR-143 and miR-145 expression in non-small cell lung cancer 

      Skjefstad, Kaja Konstanse; Johannessen, Charles; Grindstad, Thea K.W.; Kilvær, Thomas Karsten; Paulsen, Erna Elise; Pedersen, Mona Irene; Dønnem, Tom; Andersen, Sigve; Bremnes, Roy M.; Richardsen, Elin; Al-Saad, Samer; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-04)
      Micro RNAs (miRNA) are small non-coding RNAs that post-transcriptionally regulate gene expression. Dysregulation of miRNA cluster 143/145 has been reported in several malignancies, but their role in non-small cell lung cancer (NSCLC) remains elusive. This study investigates the prognostic impact of miR-143 and miR-145 in primary tumors and metastatic lymph nodes in NSCLC tissue. Tissue from 553 ...
    • IL-1β Promotes a New Function of DNase I as a Transcription Factor for the Fas Receptor Gene 

      Thiyagarajan, Dhivya; Pedersen, Hege Lynum; Seredkina, Natalya; Horvei, Kjersti Daae; Arranz, Lorena; Sonneveld, Ramon; Nijenhuis, Tom; van der Vlag, Johan; Rekvig, Ole Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-06)
      Recently we described that endonuclease inactive DNase I translocated into the nucleus in response to increased endogenous IL-1β expression. Here, we demonstrate impact and function of translocated DNase I in tubular cells. Effect of cytokines on expression level and nuclear localisation of DNase I and corresponding levels of Fas receptor (FasR) and IL-1β were determined by confocal microscopy, qPCR ...
    • Lupus nephritis: low urinary DNase I levels reflect loss of renal DNase I and may be utilized as a biomarker of disease progression 

      Pedersen, Hege Lynum; Horvei, Kjersti Daae; Thiyagarajan, Dhivya; Norby, Gudrun; Seredkina, Natalya; Moroni, Gabriella; Eilertsen, Gro Østli; Holdaas, Hallvard; Strøm, Erik Heyerdahl; Bakland, Gunnstein; Meroni, Pier Luigi; Rekvig, Ole Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-21)
      Renal DNase I is lost in advanced stages of lupus nephritis. Here, we determined if loss of renal DNase I reflects a concurrent loss of urinary DNase I, and whether absence of urinary DNase I predicts disease progression. Mouse and human DNase I protein and DNase I endonuclease activity levels were determined by western blot, gel, and radial activity assays at different stages of the murine and human ...
    • Mesenchymal stem cells and T cells in the formation of Tertiary Lymphoid Structures in Lupus Nephritis 

      Dorraji, Seyed Esmaeil; Hovd, Aud-Malin Karlsson; Kanapathippillai, Premasany; Bakland, Gunnstein; Eilertsen, Gro Østli; Figenschau, Stine; Fenton, Kristin Andreassen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-18)
      Tertiary lymphoid structures (TLS) develop in the kidneys of lupus-prone mice and systemic lupus erythematosus (SLE) patients with lupus nephritis (LN). Here we investigated the presence of mesenchymal stem cells (MSCs) in the development of TLS in murine LN, as well as the role of human MSCs as lymphoid tissue organizer (LTo) cells on the activation of CD4+ T cells from three groups of donors ...
    • ICAM1 expression is induced by proinflammatory cytokines and associated with TLS formation in aggressive breast cancer subtypes 

      Figenschau, Stine; Knutsen, Erik; Urbarova, Ilona; Fenton, Christopher Graham; Elston, Bryan; Perander, Maria; Mortensen, Elin Synnøve; Fenton, Kristin Andreassen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-06)
      Intratumoral formation of tertiary lymphoid structures (TLS) within the tumor microenvironment is considered to be a consequence of antigen challenge during anti-tumor responses. Intracellular adhesion molecule 1 (ICAM1) has been implicated in a variety of immune and inflammatory responses, in addition to associate with triple negative breast cancer (TNBC). In this study, we detected TLS in the ...
    • Mitochondrial genome variation of Atlantic cod 

      Jørgensen, Tor Erik; Karlsen, Bård Ove; Emblem, Åse; Breines, Ragna; Andreassen, morten; Rounge, Trine Ballestad; Nederbragt, Alexander Johan; Jakobsen, Kjetill Sigurd; Nymark, Marianne; Ursvik, anita; Coucheron, Dag H; Jakt, Lars Martin; Nordeide, Jarle Tryti; Moum, Truls Borg; Johansen, Steinar Daae (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-19)
      Objective:<br> The objective of this study was to analyse intraspecifc sequence variation of Atlantic cod mitochondrial DNA, based on a comprehensive collection of completely sequenced mitochondrial genomes. <br>Results:<br> We determined the complete mitochondrial DNA sequence of 124 cod specimens from the eastern and western part of the species’ distribution range in the North Atlantic Ocean. ...
    • Primary rat LSECs preserve their characteristic phenotype after cryopreservation 

      Mönkemöller, Viola; Mao, Hong; Hubner, Wolfgang; Heimann, Peter; Levy, Gahl; Huser, Thomas; Kaltschmidt, Barbara; Kaltschmidt, Christian; Øie, Cristina Ionica (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-02)
      Liver disease is a leading cause of morbidity and mortality worldwide. Recently, the liver non-parenchymal cells have gained increasing attention for their potential role in the development of liver disease. Liver sinusoidal endothelial cells (LSECs), a specialized type of endothelial cells that have unique morphology and function, play a fundamental role in maintaining liver homeostasis. Current ...