Blar i NTNU Open på forfatter "Sporsheim, Bjørnar"

Viser treff 1-20 av 20

    • ALKBH3 partner ASCC3 mediates P-body formation and selective clearance of MMS-induced 1-methyladenosine and 3-methylcytosine from mRNA 

      Wollen, Kristian Lied; Hagen, Lars; Vågbø, Cathrine Broberg; Rabe, Renana; Iveland, Tobias Solli; Aas, Per Arne; Sharma, Animesh; Sporsheim, Bjørnar; Erlandsen, Hilde O.; Palibrk, Vuk; Bjørås, Magnar; Fonseca, Davi de Miranda; Mosammaparast, Nima; Slupphaug, Geir (Peer reviewed; Journal article, 2021)
      Background: Reversible enzymatic methylation of mammalian mRNA is widespread and serves crucial regulatory functions, but little is known to what degree chemical alkylators mediate overlapping modifcations and whether cells ...

    • Allyl isothiocyanate depletes glutathione and upregulates expression of glutathione S-transferases in Arabidopsis thaliana 

      Øverby, Anders; Stokland, Ragni Adelsten; Åsberg, Signe Elisabeth; Sporsheim, Bjørnar; Bones, Atle M. (Journal article; Peer reviewed, 2015-04-22)
      Allyl isothiocyanate (AITC) is a phytochemical associated with plant defense in plants from the Brassicaceae family. AITC has long been recognized as a countermeasure against external threats, but recent reports suggest ...

    • Allyl isothiocyanate inhibits actin mediated intracellular transport in Arabidopsis thaliana. 

      Sporsheim, Bjørnar; Øverby, Anders; Bones, Atle M. (Journal article; Peer reviewed, 2015-12-07)
      Volatile allyl isothiocyanate (AITC) derives from the biodegradation of the glucosinolate sinigrin and has been associated with growth inhibition in several plants, including the model plant Arabidopsis thaliana. However, ...

    • Cholesterol crystals activate the lectin complement pathway via ficolin-2 and mannose-binding lectin: Implications for the progression of atherosclerosis 

      Pilely, Katrine; Rosbjerg, Anne; Genster, Ninette; Gál, Peter; Pál, Gábor; Halvorsen, Bente; Holm, Sverre; Aukrust, Pål; Bakke, Siril Skaret; Sporsheim, Bjørnar; Nervik, Ingunn; Niyonzima, Nathalie; Bartels, Emil D.; Stahl, Gregory L.; Mollnes, Tom Eirik; Espevik, Terje; Garred, Peter (Journal article, 2016)
      Cholesterol crystals (CC) play an essential role in the formation of atherosclerotic plaques. CC activate the classical and the alternative complement pathways, but the role of the lectin pathway is unknown. We hypothesized ...

    • Cholesterol crystals and NLRP3 mediated inflammation in the uterine wall decidua in normal and preeclamptic pregnancies 

      Silva, Gabriela; Gierman, Lobke; Rakner, Johanne Johnsen; Stødle, Guro; Mundal, Siv Boon; Thaning, Astrid Josefin; Sporsheim, Bjørnar; Elschot, Mattijs; Collett, Karin; Bjørge, Line; Aune, Marie Hjelmseth; Thomsen, Liv Cecilie Vestrheim; Iversen, Ann-Charlotte (Peer reviewed; Journal article, 2020)
      Preeclampsia is a hypertensive and inflammatory pregnancy disorder associated with cholesterol accumulation and inflammation at the maternal-fetal interface. Preeclampsia can be complicated with fetal growth restriction ...

    • Cholesterol crystals use complement to increase NLRP3 signaling pathways in coronary and carotid atherosclerosis 

      Niyonzima, Nathalie; Bakke, Siril S.; Gregersen, Ida; Holm, Sverre; Sandanger, Øystein; Orrem, Hilde Lang; Sporsheim, Bjørnar; Ryan, Liv; Kong, Xiang Yi; Dahl, Tuva Børresdatter; Skjelland, Mona; Sørensen, Kirsten; Rokstad, Anne Mari A.; Yndestad, Arne; Latz, Eicke; Gullestad, Lars; Andersen, Geir Øystein; Damås, Jan Kristian; Aukrust, Pål; Mollnes, Tom Eirik; Halvorsen, Bente; Espevik, Terje (Peer reviewed; Journal article, 2020)
      Background: During atherogenesis, cholesterol precipitates into cholesterol crystals (CC) in the vessel wall, which trigger plaque inflammation by activating the NACHT, LRR and PYD domains-containing protein 3 (NLRP3) ...

    • Complement activation by cholesterol crystals triggers a subsequent cytokine response 

      Niyonzima, Nathalie; Halvorsen, Bente; Sporsheim, Bjørnar; Garred, Peter; Aukrust, Pål; Mollnes, Tom Eirik; Espevik, Terje (Journal article; Peer reviewed, 2017)
      In the host a diverse collection of endogenous danger signals is constantly generated consisting of waste material as protein aggregates or crystalline materials that are recognized and handled by soluble pattern recognition ...

    • Glycine inhibits NINJ1 membrane clustering to suppress plasma membrane rupture in cell death 

      Borges, Jazlyn P.; Sætra, Ragnhild Sofie Ragnhildstveit; Volchuk, Allen; Bugge, Marit; Devant, Pascal; Sporsheim, Bjørnar; Kilburn, Bridget R.; Evavold, Charles L.; Kagan, Jonathan C.; Goldenberg, Neil M.; Flo, Trude Helen; Steinberg, Benjamin Ethan (Peer reviewed; Journal article, 2022)
      First recognized more than 30 years ago, glycine protects cells against rupture from diverse types of injury. This robust and widely observed effect has been speculated to target a late downstream process common to multiple ...

    • Highly variable effect of sonication to dislodge biofilm-embedded Staphylococcus epidermidis directly quantified by epifluorescence microscopy: an in vitro model study 

      Sandbakken, Erik Thorvaldsen; Witsø, Eivind; Sporsheim, Bjørnar; Egeberg, Kjartan Wøllo; Foss, Olav A.; Hoang, Linh; Bjerkan, Geir; Løseth, Kirsti; Bergh, Kåre (Peer reviewed; Journal article, 2020)
      Background In cases of prosthetic joint infections, culture of sonication fluid can supplement culture of harvested tissue samples for correct microbial diagnosis. However, discrepant results regarding the increased ...

    • The imaging of guard cells of thioglucosidase (tgg) mutants of Arabidopsis further links plant chemical defence systems with physical defence barriers 

      Ahuja, Ishita; Kissen, Ralph; Hoang, Linh; Sporsheim, Bjørnar; Halle, Kari Krizak; Wolff, Silje Aase; Ahmad, Samina Jam Nazeer; Ahmad, Jam Nazeer; Bones, Atle M. (Journal article; Peer reviewed, 2021)
      The glucosinolate-myrosinase system is a well-known plant chemical defence system. Two functional myrosinase-encoding genes, THIOGLUCOSIDASE 1 (TGG1) and THIOGLUCOSIDASE 2 (TGG2), express in aerial tissues of Arabidopsis. ...

    • Increased levels of legumain in plasma and plaques from patients with carotid atherosclerosis 

      Lunde, Ngoc Nguyen Dieu; Holm, Sverre; Dahl, Tuva Børresdatter; Inass, Elyouncha; Sporsheim, Bjørnar; Gregersen, Ida; Abbas, Azhar; Skjelland, Mona; Espevik, Terje; Solberg, Rigmor; Johansen, Harald Thidemann; Halvorsen, Bente (Journal article; Peer reviewed, 2017)
      Background and aims The cysteine protease legumain has been shown to be up-regulated in unstable atherosclerotic plaques. This study aims to further elucidate legumain in atherosclerosis, by examining legumain in plasma ...

    • Legumain is upregulated in acute cardiovascular events and associated with improved outcome – potentially related to anti-inflammatory effects on macrophages 

      Lunde, Ngoc Dieu Nguyen; Gregersen, Ida; Ueland, Thor; Shetelig, Christian; Holm, Sverre; Kong, Xiang Yi; Michelsen, Annika; Otterdal, Kari; Yndestad, Arne; Broch, Kaspar; Gullestad, Lars; Nyman, Tuula Anneli; Bendz, Bjørn; Eritsland, Jan; Hoffmann, Pavel; Skagen, Karolina Ryeng; Gonçalves, Isabel; Nilsson, Jan; Grenegård, Magnus; Poreba, Marcin; Drag, Marcin; Seljeflot, Ingebjørg; Sporsheim, Bjørnar; Espevik, Terje; Skjelland, Mona; Johansen, Harald Thidemann; Solberg, Rigmor; Aukrust, Pål; Björbacka, Harry; Andersen, Geir Øystein; Halvorsen, Bente (Peer reviewed; Journal article, 2019)
      Background and aims We have previously found increased levels of the cysteine protease legumain in plasma and plaques from patients with carotid atherosclerosis. This study further investigated legumain during acute ...

    • Mitochondrial C5aR1 activity in macrophages controls IL-1β production underlying sterile inflammation 

      Niyonzima, Nathalie; Rahman, Jubayer; Kunz, Natalie; West, Erin; Freiwald, Tilo; Desai, Jigar V.; Merle, Nicolas; Gidon, Alexandre; Sporsheim, Bjørnar; Lionakis, Michail S.; Evensen, Kristin; Lindberg, Beate; Skagen, Karolina; Skjelland, Mona; Singh, Parul; Haug, Markus; Ruseva, Marieta M.; Kolev, Martin; Bibby, Jack; Marshall, Olivia; O’Brien, Brett; Deeks, Nigel; Afzali, Behdad; Clark, Richard J.; Woodruff, Trent M.; Pryor, Mylton; Yang, Zhi-Hong; Remaley, Alan T.; Mollnes, Tom Eirik; Hewitt, Stephen M.; Yan, Bingyu; Kazemian, Majid; Kiss, Mate G.; Binder, Christoph J.; Halvorsen, Bente; Espevik, Terje; Kemper, Claudia (Peer reviewed; Journal article, 2021)
      While serum-circulating complement destroys invading pathogens, intracellularly active complement, termed the “complosome,” functions as a vital orchestrator of cell-metabolic events underlying T cell effector responses. ...

    • Patient derived colonoids as drug testing platforms-Critical importance of oxygen concentration 

      Skovdahl, Helene Kolstad; Gopalakrishnan, Shreya; Svendsen, Tarjei Dahl; Granlund, Atle van Beelen; Bakke, Ingunn; Ginbot, Zekarias; Thorsvik, Silje; Flatberg, Arnar; Sporsheim, Bjørnar; Ostrop, Jenny; Mollnes, Tom Eirik; Sandvik, Arne Kristian; Bruland, Torunn (Peer reviewed; Journal article, 2021)
      Treatment of inflammatory bowel disease (IBD) is challenging, with a series of available drugs each helping only a fraction of patients. Patients may face time-consuming drug trials while the disease is active, thus there ...

    • Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice 

      Guragain, Prashanna; Sporsheim, Bjørnar; Skjesol, Astrid; Båtnes, Anna Solvang; Olsen, Yngvar; Bones, Atle M.; Winge, Per (Peer reviewed; Journal article, 2020)
      Phenylalanine hydroxylase (PAH) is a crucial enzyme involved in tyrosine biosynthesis, having roles in neurological and physiological processes. The purpose of PAH has received little attention in crustaceans despite ...

    • Proteomic analysis reveals mechanisms underlying increased efficacy of bleomycin by photochemical internalization in bladder cancer cells 

      Gederaas, Odrun Arna; Sharma, Animesh; Mbarak, Saide; Sporsheim, Bjørnar; Høgset, Anders; Bogoeva, Vanya; Slupphaug, Geir; Hagen, Lars (Peer reviewed; Journal article, 2023)
      Photochemical internalization (PCI) is a promising new technology for site-specific drug delivery, developed from photodynamic therapy (PDT). In PCI, light-induced activation of a photosensitizer trapped inside endosomes ...

    • Quantitative 3-D colocalization analysis as a tool to study the intracellular trafficking and dissociation of pDNA-chitosan polyplexes 

      Reitan, Nina Kristine; Sporsheim, Bjørnar; Bjørkøy, Astrid; Strand, Sabina P.; Davies, Catharina De Lange (Journal article; Peer reviewed, 2012)
      Multichannel microscopy is frequently used to study intermolecular interactions and spatial relationships between biomolecules and organelles or vesicles in cells. Based on multichannel images, quantitative colocalization ...

    • Quantitative confocal laser scanning microscopy: optimization for in vivo and in vitro analysis of intracellular transport 

      Sporsheim, Bjørnar (Doctoral thesis at NTNU;978-82-326-1163-8, Doctoral thesis, 2015)

    • The TLR4 adaptor TRAM controls the phagocytosis of Gram-negative bacteria by interacting with the Rab11-family interacting protein 2 

      Skjesol, Astrid; Yurchenko, Mariya; Bösl, Korbinian; Gravastrand, Caroline S.; Nilsen, Kaja Elisabeth; Grøvdal, Lene Melsæther; Agliano, Federica; Patane, Francesco; Lentini, Germana; Kim, Hera; Teti, Giuseppe; Sharma, Aditya Kumar; Kandasamy, Richard Kumaran; Sporsheim, Bjørnar; Starheim, Kristian K.; Golenbock, Douglas T.; Stenmark, Harald; McCaffrey, Mary; Espevik, Terje; Husebye, Harald (Journal article; Peer reviewed, 2019)
      Phagocytosis is a complex process that eliminates microbes and is performed by specialised cells such as macrophages. Toll-like receptor 4 (TLR4) is expressed on the surface of macrophages and recognizes Gram-negative ...

    • The TLR4 adaptor TRAM controls the phagocytosis of Gram-negative bacteria by interacting with the Rab11-family interacting protein 2 

      Skjesol, Astrid; Yurchenko, Mariya; Bösl, Korbinian; Gravastrand, Caroline S.; Nilsen, Kaja Elisabeth; Grøvdal, Lene Melsæther; Agliano, Federica; Patane, Francesco; Lentini, Germana; Kim, Hera; Teti, Giuseppe; Sharma, Aditya Kumar; Kandasamy, Richard Kumaran; Sporsheim, Bjørnar; Starheim, Kristian K.; Golenbock, Douglas T.; Stenmark, Harald; McCaffrey, Mary; Espevik, Terje; Husebye, Harald (Peer reviewed; Journal article, 2019)
      Phagocytosis is a complex process that eliminates microbes and is performed by specialised cells such as macrophages. Toll-like receptor 4 (TLR4) is expressed on the surface of macrophages and recognizes Gram-negative ...