Now showing items 1-10 of 10

    • Asialoglycoprotein Receptor (ASGP-R) is Liver Parenchymal Cells is Involved in Elimination of Recombinant Human TFPI 

      Appa, Rupa Shree; Øie, Cristina Ionica; Brodin, Ellen; Hansen, John-Bjarne; Smedsrød, Bård (Preprint; Manuskript; Peer reviewed, 2010)
      We here report on a study carried out to determine the early clearance kinetics, and organ, cell(s) and receptor(s) responsible for the clearance of full length TFPI purified from BHK cells (TFPI<sup>BHK</sup>). Following intravenous administration, <sup>125</sup>I-TFPI<sup>BHK</sup> was cleared with a biphasic elimination curve, and with a significantly slower t<sub>1/2</sub>α compared to recombinant ...
    • Effect of Unfractionated Heparin on TFPI Elimination 

      Appa, Rupa Shree; Øie, Cristina Ionica; Hilden, Ida; Brodin, Ellen; Smedsrød, Bård; Hansen, John-Bjarne (Preprint; Manuskript; Peer reviewed, 2010)
      Background: Tissue factor pathway inhibitor (TFPI) plays an important role for the anticoagulant effect of heparin. Depletion of intravascular TFPI by treatment with unfractionated heparin (UFH), and not by low molecular weight heparin (LMWH), has been suggested to explain the superiority of LMWH in treatment of both arterial and venous thrombosis. The present study was undertaken to investigate ...
    • FITC conjugation markedly enhances hepatic clearance of N-formyl peptides 

      Øie, Cristina Ionica; Snapkov, Igor; Elvevold, Kjetil; Sveinbjørnsson, Baldur; Smedsrød, Bård (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-05)
      In both septic and aseptic inflammation, N-formyl peptides may enter the circulation and induce a systemic inflammatory response syndrome similar to that observed during septic shock. The inflammatory response is brought about by the binding of N-formyl peptide to formyl peptide receptors (FPRs), specific signaling receptors expressed on myeloid as well as non-myeloid cells involved in the ...
    • Genome-wide analysis of DNA methylation and gene Expression patterns in purified, uncultures human liver cells and activated hepatic stellate cells 

      Taghdouini, Adil El; Sørensen, Anita Løvstad; Reiner, Andrew Henry; Coll, Mar; Verhulst, Stefaan; Mannaerts, Inge; Øie, Cristina Ionica; Smedsrød, Bård; Najimi, Mustapha; Sokal, Etienne; Luttun, Aernout; Sancho-Bru, Pau; Collas, Philippe; Grunsven, Leo A van (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-31)
      <p>Background & Aims: Liver fibrogenesis – scarring of the liver that can lead to cirrhosis and liver cancer – is characterized by hepatocyte impairment, capillarization of liver sinusoidal endothelial cells (LSECs) and hepatic stellate cell (HSC) activation. To date, the molecular determinants of a healthy human liver cell phenotype remain largely uncharacterized. Here, we assess the transcriptome ...
    • In vitro generation of functional liver organoid-like structures using adult human cells 

      Ramachandran, Sarada Devi; Schirmer, Katharina; Münst, Bernhard; Heinz, Stefan; Ghafoory, Shahrouz; Wölfl, Stefan; Simon-Keller, Katja; Marx, Alexander; Øie, Cristina Ionica; Ebert, Matthias P.; Walles, Heike; Braspenning, Joris; Breitkopf-Heinlein, Katja (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-21)
      In this study we used differentiated adult human upcyte1 cells for the in vitro generation of liver organoids. Upcyte1 cells are genetically engineered cell strains derived from primary human cells by lenti-viral transduction of genes or gene combinations inducing transient proliferation capacity (upcyte1 process). Proliferating upcyte1 cells undergo a finite number of cell divisions, i.e., ...
    • The influence of oxygen tension on the structure and function of isolated liver sinusoidal endothelial cells 

      Martinez, Inigo Zubiavrre; Warren, A; Le Couteur, D.G.; Nedredal, Geir Ivar; Øie, Cristina Ionica; Johansen, oddmund; Smedsrød, Bård (Journal article; Tidsskriftartikkel; Peer reviewed, 2008)
    • Multimodal super-resolution optical microscopy visualizes the close connection between membrane and the cytoskeleton in liver sinusoidal endothelial cell fenestrations 

      Mönkemöller, Viola; Øie, Cristina Ionica; Hubner, Wolfgang; Huser, Thomas Rolf; McCourt, Peter Anthony (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Liver sinusoidal endothelial cells (LSECs) act as a filter between blood and the hepatocytes. LSECs are highly fenestrated cells; they contain transcellular pores with diameters between 50 to 200 nm. The small sizes of the fenestrae have so far prohibited any functional analysis with standard and advanced light microscopy techniques. Only the advent of super-resolution optical fluorescence microscopy ...
    • New insights into the clearance of tissue factor pathway inhibitor (TFPI) and unfractionated heparin (UFH) 

      Øie, Cristina Ionica (Doctoral thesis; Doktorgradsavhandling, 2010-11-05)
      ”Hvor mye?”, ”Hvor ofte?” og ”Hvor lenge?” er sentrale spørsmål i studier av legemidler. For å finne en optimal behandling trenger man kunnskap om et legemiddels opptak, fordeling i kroppen, og nedbryting. Øie sitt prosjekt viser at leveren spiller en nøkkelrolle i nedbrytningen av to sentrale substanser som hemmer blodlevring (antikoagulantia), heparin og tissue factor pathway inhibitor (TFPI). ...
    • Primary rat LSECs preserve their characteristic phenotype after cryopreservation 

      Monkemoller, 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 ...
    • Rat liver sinusoidal endothelial cells (LSECs) express functional low density lipoprotein receptor-related protein-1 (LRP-1) 

      Øie, Cristina Ionica; Appa, Rupa Shree; Hilden, Ida; Petersen, Helle Heibroch; Gruhler, Albrecht; Smedsrød, Bård; Hansen, John-Bjarne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The low density lipoprotein receptor-related protein-1 (LRP-1) is a large, multifunctional endocytic receptor from the LDL receptor family, highly expressed in liver parenchymal cells (PCs), neurons, activated astrocytes, and fibroblasts. The aim of the study was to investigate if liver sinusoidal endothelial cells (LSECs), highly specialized scavenger cells, express LRP-1. To address this question, ...