• Complement factor 5 blockade reduces porcine myocardial infarction size and improves immediate cardiac function 

      Pischke, Søren Erik; Gustavsen, Alice; Orrem, Hilde Lang; Egge, Kjetil Hagene; Courivaud, Frederic A. A.; Fontenelle, Hugues; Despont, Alain; Bongoni, Anjan K.; Rieben, Robert; Tønnessen, Tor Inge; Nunn, Miles A.; Scott, Helge; Skulstad, Helge; Barratt-Due, Andreas; Mollnes, Tom Eirik (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03-03)
      Inhibition of complement factor 5 (C5) reduced myocardial infarction in animal studies, while no benefit was found in clinical studies. Due to lack of cross-reactivity of clinically used C5 antibodies, different inhibitors were used in animal and clinical studies. Coversin (Ornithodoros moubata complement inhibitor, OmCI) blocks C5 cleavage and binds leukotriene B4 in humans and pigs. We hypothesized ...
    • IL-6 receptor inhibition by tocilizumab attenuated expression of C5a receptor 1 and 2 in non-ST-elevation myocardial infarction 

      Orrem, Hilde Lang; Nilsson, Per; Pischke, Søren Erik; Kleveland, Ola; Yndestad, Arne; Ekholt, Karin; Damås, Jan Kristian; Espevik, Terje; Bendz, Bjørn; Halvorsen, Bente; Gregersen, Ida; Wiseth, Rune; Andersen, Geir Øystein; Ueland, Thor; Gullestad, Lars; Aukrust, Pål; Barratt-Due, Andreas; Mollnes, Tom Eirik (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-12)
      <p><i>Background</i>: Elevated interleukin-6 (IL-6) and complement activation are associated with detrimental effects of inflammation in coronary artery disease (CAD). The complement anaphylatoxins C5a and C3a interact with their receptors; the highly inflammatory C5aR1, and the C5aR2 and C3aR. We evaluated the effect of the IL-6 receptor (IL-6R)-antagonist tocilizumab on the expression of the ...
    • Soluble IL-1 receptor 2 is associated with left ventricular remodelling in patients with ST-elevation myocardial infarction 

      Orrem, Hilde Lang; Shetelig, Christian; Ueland, Thor; Limalanathan, Shanmuganathan; Nilsson, Per; Husebye, Trygve Guttorm; Aukrust, Pål; Seljeflot, Ingebjørg; Hoffmann, Pavel; Eritsland, Jan; Mollnes, Tom Eirik; Andersen, Geir Øystein; Yndestad, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-28)
      <p><i>Background</i>: The inflammatory response following myocardial infarction (MI) is prerequisite for proper healing of infarcted tissue, but can also have detrimental effects on cardiac function. Interleukin (IL)-1α and IL-1β are potent inflammatory mediators and their bioactivity is tightly regulated by IL-1 receptor antagonist (IL-1ra) and soluble (s) IL-1 receptors (R). We aimed to examine ...