Norbert Roos

Image of Norbert Roos
Norwegian version of this page
Phone +47 22856191
Mobile phone +47 90524798
Room U141
Username
Visiting address Blindernveien 31 0371 Oslo
Postal address Postboks 1066 Blindern 0316 Oslo

Research interest

The electron microscopy unit was established to provide up-to-date methodology for the observation of biological specimens in both the transmission and scanning electron microscope. In order to achieve this goal we established and developed new methods over the years and provide now a broad spectrum of methods for our users. Our main research interest is the low temperature observation of fully-hydrated specimens and especially immuno-cytochemistry on ultrathin cryosections in the transmission electron microscope. We use these methods to study the cell biology and structure of viruses particularly of fish pathogens.

My contributions in the field of biological electron microscopy have been published in international journals  and resulted in a book written for the Royal Microscopy Handbook Series. I have successfully established a national and international network of collaborations with other laboratories. The collaboration aims at improving teaching in this field and offering advanced practical courses for participants worldwide and at developing new methodological approaches to specimen preparation and electron microscopy of biological specimens and to understand basic cellular mechanisms such as e.g.membrane trafficking and virus assembly. 

 

Teaching

MBV 4030, MBV4110/9110, international courses (EMBO Practical Courses, Nordic Council Courses, FEBS Advanced Courses)

Publications

  • Stephan, Mareike; Broeker, Nina; Saragliadis, Athanasios; Roos, Norbert; Linke, Dirk & Barbirz, Stefanie (2020). In vitro Analysis of O-Antigen-Specific Bacteriophage P22 Inactivation by Salmonella Outer Membrane Vesicles. Frontiers in Microbiology. ISSN 1664-302X. 11. doi: 10.3389/fmicb.2020.510638. Full text in Research Archive
  • Skottvoll, Frøydis Sved; Berg, Henriette Engen; Bjørseth, Kamilla; Lund, Kaja; Roos, Norbert & Bekhradnia, Sara [Show all 13 contributors for this article] (2018). Ultracentrifugation versus kit exosome isolation: nanoLC-MS and other tools reveal similar performance biomarkers, but also contaminations. Future science OA. ISSN 2056-5623. 5(1). doi: 10.4155/fsoa-2018-0088. Full text in Research Archive
  • Wessel, Øystein; Braaen, Stine; Alarcon, Marta; Haatveit, Hanne Merethe; Roos, Norbert & Markussen, Turhan [Show all 9 contributors for this article] (2017). Infection with purified Piscine orthoreovirus demonstrates a causal relationship with heart and skeletal muscle inflammation in Atlantic salmon. PLOS ONE. ISSN 1932-6203. 12(8). doi: 10.1371/journal.pone.0183781. Full text in Research Archive
  • Høydahl, Lene Støkken; Nilssen, Nicolay Rustad; Gunnarsen, Kristin Støen; du Pré, Marie Fleur; Iversen, Rasmus & Roos, Norbert [Show all 11 contributors for this article] (2016). Multivalent pIX phage display selects for distinct and improved antibody properties. Scientific Reports. ISSN 2045-2322. 6. doi: 10.1038/srep39066. Full text in Research Archive
  • Tandberg, Julia Isabel; Lagos Rojas, Leidy Ximena; Langlete, Petter; Berger, Eva Kathrin; Rishovd, Anne-Lise & Roos, Norbert [Show all 9 contributors for this article] (2016). Comparative Analysis of Membrane Vesicles from Three Piscirickettsia salmonis Isolates Reveals Differences in Vesicle Characteristics. PLOS ONE. ISSN 1932-6203. 11. doi: 10.1371/journal.pone.0165099. Full text in Research Archive
  • Nesset, Cecilie Kåsi; Kong, Xiang Yi; Damme, Markus; Schjalm, Camilla; Roos, Norbert & Løberg, Else Marit [Show all 7 contributors for this article] (2016). Age-dependent development of liver fibrosis in Glmp (gt/gt) mice. Fibrogenesis & Tissue Repair. ISSN 1755-1536. 9(5). doi: 10.1186/s13069-016-0042-4.
  • Pedersen, K.W.; Kierulf, B.; Oksvold, M.P.; Li, M.; Vlassov, A. & Roos, Norbert [Show all 8 contributors for this article] (2015). Direct Isolation of Exosomes from Cell Culture: Simplifying Methods for Exosome Enrichment and Analysis. Translational Biomedicine. ISSN 2172-0479. 6(2:18), p. 1–9.
  • Iversen, Hildegunn; Lindbäck, Toril; L'Abee-Lund, Trine Marie; Roos, Norbert; Aspholm, Marina & Arnesen, Lotte Pia Stenfors (2015). The gut bacterium Bacteroides thetaiotaomicron influences the virulence potential of the enterohemorrhagic Escherichia coli0103:H25. PLOS ONE. ISSN 1932-6203. 10(2), p. 1–23. doi: 10.1371/journal.pone.0118140. Full text in Research Archive
  • Brudal, Espen; Lampe, Elisabeth Opsjøn; Reubsaet, Leon; Roos, Norbert; Hegna, Ida Kristin & Thrane, Ida Marie [Show all 8 contributors for this article] (2015). Vaccination with outer membrane vesicles from Francisella noatunensis reduces development of francisellosis in a zebrafish model. Fish and Shellfish Immunology. ISSN 1050-4648. 42(1), p. 50–57. doi: 10.1016/j.fsi.2014.10.025.
  • Momtazi, Leva; Bagheri Fam, Shahla; Singh, Gurvinder; Hofgaard, Antje; Hakkarainen, Minna & Glomm, Wilhelm [Show all 10 contributors for this article] (2014). Synthesis, characterization, and cellular uptake of magnetic nanocarriers for cancer drug delivery. Journal of Colloid and Interface Science. ISSN 0021-9797. 433, p. 76–85. doi: 10.1016/j.jcis.2014.07.013.
  • Fenaroli, Federico; Westmoreland, David; Benjaminsen, Jørgen; Kolstad, Terje R Selnes; Skjeldal, Frode Miltzow & Meijer, Annemarie H. [Show all 12 contributors for this article] (2014). Nanoparticles as Drug Delivery System against Tuberculosis in Zebrafish Embryos: Direct Visualization and Treatment. ACS Nano. ISSN 1936-0851. 8(7), p. 7014–7026. doi: 10.1021/nn5019126.
  • Vik, Åshild; Anonsen, Jan Haug; Aas, Finn Erik; Hegge, Finn Terje; Roos, Norbert & Koomey, Michael [Show all 7 contributors for this article] (2014). Type IV pilus assembly proficiency and dynamics influence pilin subunit phospho-form macro- and microheterogeneity in Neisseria gonorrhoeae. PLOS ONE. ISSN 1932-6203. 9(5). doi: 10.1371/journal.pone.0096419. Full text in Research Archive
  • Kong, Xiang Yi; Nesset, Cecilie Kåsi; Damme, Markus; Løberg, Else Marit; Lübke, Torben & Mæhlen, Jan [Show all 13 contributors for this article] (2014). Loss of lysosomal membrane protein NCU-G1 in mice results in spontaneous liver fibrosis with accumulation of lipofuscin and iron in Kupffer cells. Disease Models and Mechanisms. ISSN 1754-8403. 7(3), p. 351–362. doi: 10.1242/dmm.014050. Full text in Research Archive
  • Kalluru, Raja Sab; Fenaroli, Federico; Westmoreland, David; Ulanova, Lilia; Maleki, Atoosa & Roos, Norbert [Show all 15 contributors for this article] (2013). Polylactide-co-glycolide-rifampicin-nanoparticles efficiently clear Mycobacterium bovis BCG infection in macrophages and remain membrane-bound in phago-lysosomes. Journal of Cell Science. ISSN 0021-9533. 126(14), p. 3043–3054. doi: 10.1242/jcs.121814.
  • Seidl, Sebastian; Braun, Ursula Barbara; Roos, Norbert; Shaohua, Li; Lüdtke, Timo H.-W. & Kispert, Andreas [Show all 7 contributors for this article] (2013). Phenotypical Analysis of Atypical PKCs In Vivo Function Display a Compensatory System at Mouse Embryonic Day 7.5. PLOS ONE. ISSN 1932-6203. 8(5). doi: 10.1371/journal.pone.0062756.
  • Santarella-Mellwig, Rachel; Pruggnaller, Sabine; Roos, Norbert; Mattaj, Ian W. & Devos, Damien P. (2013). Three-Dimensional Reconstruction of Bacteria with a Complex Endomembrane System. PLoS Biology. ISSN 1544-9173. 11(5), p. 1–9. doi: 10.1371/journal.pbio.1001565.
  • Vik, Åshild; Aspholm, Marina; Anonsen, Jan Haug; Børud, Bente; Roos, Norbert & Koomey, Michael (2012). Insights into type IV pilus biogenesis and dynamics from genetic analysis of a C-terminally tagged pilin: a role for O-linked glycosylation. Molecular Microbiology. ISSN 0950-382X. 85(6), p. 1166–1178. doi: 10.1111/j.1365-2958.2012.08166.x.
  • Nilssen, Nicolay Rustad; Frigstad, Terje; Pollmann, Sylvie; Roos, Norbert; Bogen, Bjarne & Sandlie, Inger [Show all 7 contributors for this article] (2012). DeltaPhage-a novel helper phage for high-valence pIX phagemid display. Nucleic Acids Research (NAR). ISSN 0305-1048. 40(16). doi: 10.1093/nar/gks341. Full text in Research Archive
  • Haugland, Øyvind; Mikalsen, Aase; Nilsen, Pål; Lindmo, Karine; Thu, Beate Julie & Eliassen M., Trygve [Show all 9 contributors for this article] (2011). Cardiomyopathy Syndrome of Atlantic Salmon (Salmo salar L.) Is Caused by a Double-Stranded RNA Virus of the Totiviridae Family. Journal of Virology. ISSN 0022-538X. 85(11), p. 5275–5286. doi: 10.1128/JVI.02154-10.
  • Løset, Geir Åge; Roos, Norbert; Bogen, Bjarne & Sandlie, Inger (2011). Expanding the Versatility of Phage Display II: Improved Affinity Selection of Folded Domains on Protein VII and IX of the Filamentous Phage. PLOS ONE. ISSN 1932-6203. 6(2). doi: 10.1371/journal.pone.0017433. Full text in Research Archive
  • Farkas, Julia; Christian, Paul; Alberto Gallego-Urrea, Julián; Roos, Norbert; Hassellöv, Martin & Tollefsen, Knut-Erik [Show all 7 contributors for this article] (2011). Uptake and effects of manufactured silver nanoparticles in rainbow trout (Oncorhynchus mykiss) gill cells. Aquatic Toxicology. ISSN 0166-445X. 101(1), p. 117–125. doi: 10.1016/j.aquatox.2010.09.010.
  • Schiøtz, Berit Lyng; Roos, Norbert; Rishovd, Anne-Lise & Gjøen, Tor (2010). Formation of autophagosomes and redistribution of LC3 upon in vitro infection with infectious salmon anemia virus. Virus Research. ISSN 0168-1702. 151(1), p. 104–107. doi: 10.1016/j.virusres.2010.03.013.
  • Farkas, Julia; Christian, Paul; Urrea, Julian Alberto Gallego; Roos, Norbert; Hassellöv, Martin & Tollefsen, Knut-Erik [Show all 7 contributors for this article] (2010). Effects of silver and gold nanoparticles on rainbow trout (Oncorhynchus mykiss) hepatocytes. Aquatic Toxicology. ISSN 0166-445X. 96(1), p. 44–52. doi: 10.1016/j.aquatox.2009.09.016.
  • Salomonsson, Emelie; Forsberg, A; Roos, Norbert; Holz, C; Maier, B & Koomey, Michael [Show all 7 contributors for this article] (2009). Functional analyses of pilin-like proteins from Francisella tularensis: complementation of type IV pilus phenotypes in Neisseria gonorrhoeae. Microbiology (Reading). ISSN 1350-0872. 155, p. 2546–2559. doi: 10.1099/mic.0.028183-0.
  • Posthuma, CC; Pedersen, Ketil Winther; Lu, Z; Joosten, RG; Roos, Norbert & Zevenhoven-Dobbe, JC [Show all 7 contributors for this article] (2008). Formation of the arterivirus replication/transcription complex: a key role for nonstructural protein 3 in the remodeling of intracellular membranes. Journal of Virology. ISSN 0022-538X. 82, p. 4480–4491.
  • Aas, Finn Erik; Winther-Larsen, Hanne C; Wolfgang, Matthew; Frye, Stephan; Løvold, Cecilia & Roos, Norbert [Show all 8 contributors for this article] (2007). Substitutions in the N-terminal alpha helical spine of Neisseria gonorrhoeae pilin affect type IV pilus assembly, dynamics and associated functions. Molecular Microbiology. ISSN 0950-382X. 63, p. 69–85. doi: 10.1111/j.1365-2958.2006.05482.x.
  • Winther-Larsen, Hanne C; Wolfgang, Matthew; van Putten, JPM; Roos, Norbert; Aas, Finn Erik & Jacobsen, Wolfgang Mathias [Show all 8 contributors for this article] (2007). Pseudomonas aeruginosa type IV pilus expression in Neisseria gonorrhoeae: Effects of pilin subunit composition on function and organelle dynamics. Journal of Bacteriology. ISSN 0021-9193. 189(18), p. 6676–6685. doi: 10.1128/JB.00407-07.
  • Sporstol, Marita; Mousavi, Darbi Seyed Ali; Eskild, Winnie; Roos, Norbert & Berg, Trond (2007). ABCAI, ABCGI and SR-BI: hormonal regulation in primary rat hepatocytes and human cell lines. BMC Molecular Biology. ISSN 1471-2199. 8. doi: 10.1186/1471-2199-8-5.
  • Roos, Norbert; Webster, Paul & Griffiths, Gareth Wyn (2006). Use of ultrathin cryo- and plastic sections for immunocytochemistry. In Celis, Julio E. (Eds.), Cell biology. A laboratory handbook. 3rd ed. Elsevier. ISSN 978-0-12-164733-9. p. 299–305.
  • Aas, Finn Erik; Winther-Larsen, Hanne C; Wolfgang, Matthew; Frye, Stephan Alfons; Løvold, Cecilia & Roos, Norbert [Show all 8 contributors for this article] (2006). Substitutions in the N-terminal alpha helical spine of Neisseria gonorrhoeae pilin affects Type IV pilus assembly, dynamics and associated functions. Molecular Microbiology. ISSN 0950-382X. 63(1), p. 69–85.
  • Malerød, Lene; Sporstol, Marita; Juvet, Lene Kristine; Mousavi, Darbi Seyed Ali; Gjøen, Tor & Berg, Trond [Show all 8 contributors for this article] (2005). Bile acids reduce SR-BI expression in hepatocytes by a pathway involving FXR/RXR, SHP, and LRH-1. Biochemical and Biophysical Research Communications - BBRC. ISSN 0006-291X. 336(4), p. 1096–1105.
  • Berg, Trond; Norum, Kaare Reidar; Roos, Norbert & Blomhoff, Rune (2004). Intralobular distribution of vitamin A-storing lipid droplets in hepatic stellate cells. Special reference to polar bear and arctic fox. Comparative Hepatology. ISSN 1476-5926. 3.
  • Senoo, Haruki; Wake, Kenjiro; Wold, Heidi Libæk; Higashi, Nobuyo; Imai, Katsuyuki & Moskaug, Jan Øivind [Show all 14 contributors for this article] (2004). Decreased Capacity for Vitamin A Storage in Hepatic Stellate Cells for Arctic Animals. Comparative Hepatology. ISSN 1476-5926. 3(1), p. 18–18.
  • Higashi, Nobuyo; Imai, Katsuyuki; Sato, Mitsuru; Sato, Takeya; Kojima, Naosuke & Miura, Mitsutaka [Show all 14 contributors for this article] (2004). Intralobular Distribution of Vitamin A-Storing Lipid Droplets in Hepatic Stellate Cells with Special Reference to Polar Bear and Arctic Fox. Comparative Hepatology. ISSN 1476-5926. 3(1).
  • Kindberg, Grete M.; Tolleshaug, Helge; Roos, Norbert & Skotland, Tore (2003). Hepatic clearance of Sanazoid perflourobutane microbubbles by Kupffer cells does not reduce the ability of the liver to phagocytose or degrade albumin microspheres. Cell and Tissue Research. ISSN 0302-766X. 312, p. 49–54.
  • Mallardo, Massimo; Leithe, Edward; Schleich, Sybille; Roos, Norbert; Doglio, Laura & Locker, Jacomine Krijnse (2002). Relationship between Vaccinia virus intracellular cores, early mRNAs, and DNA replication sites. Journal of Virology. ISSN 0022-538X. 76(10), p. 5167–5183.
  • Doglio, Laura; de Marco, Ario; Schleich, Sybille; Roos, Norbert & Krijnse Locker, Jacomine (2002). The Vaccinia virus E8R gene product: a viral membrane protein that is made early in infection and packaged into the virions´core. Journal of Virology. ISSN 0022-538X. 76(19), p. 9773–9786.
  • Senoo, Haruki; Imamura, Kazuyuki; Higashi, Nobyuo; Wake, Kenjiro; Nojima, N. & Miura, Mitsutaka [Show all 13 contributors for this article] (2001). Transport and hepatic storage of vitamin A in arctic animals. In Wisse, E; Knook, D.L.; Zanger, R De & Arthur, K. (Ed.), Cells of the hepatic sinusoid. Kupffer Cell Foundation, Leiden, The Netherlands. p. 207–209.
  • Sato, Mitsuru; Miura, Mitsutaka; Kojima, Naosuke; Higashi, Nobyuo; Imamura, Kazuyuki & Sato, Takeya [Show all 14 contributors for this article] (2001). Nuclear deviation in hepatic parenchymal cells on sinusoidal surfaces in artcic animals. Cell structure and function. ISSN 0386-7196. 26, p. 71–77.
  • Snijder, Eric J.; Tool, Hans van; Roos, Norbert & Pedersen, Ketil Winther (2001). Non-structural proteins 2 and 3 interact to modify host cell membranes during the formation of the arterivirus replication complex. Journal of General Virology. ISSN 0022-1317. 82, p. 985–994.
  • Griffiths, Gareth O.; Wepf, Roger; Wendt, Thomas; Krijnse-Locker, Jacomine; Cyrklaff, Marek & Roos, Norbert (2001). Structure and Assembly of Intracellular Mature Vaccinia Virus: Isolated-Particle Analysis. Journal of Virology. ISSN 0022-538X. 75(22), p. 11034–11055.
  • Griffiths, Gareth O.; Roos, Norbert; Schleich, Sybille & Krijnse-Locker, Jacomine (2001). Structure and Assembly of Intracellular Mature Vaccinia Virus: Thin-Section Analysis. Journal of Virology. ISSN 0022-538X. 75(22), p. 11056–11070.
  • Oksvold, Morten Pedersen; Skarpen, Ellen; Lindeman, Birgitte; Roos, Norbert & Huitfeldt, Henrik (2000). Immunocytochemical localization of She and activated EGF receptor in early endosomes after EGF stimulation of HeLa cells. Journal of Histochemistry and Cytochemistry. ISSN 0022-1554. 48(1), p. 21–33.
  • Pedersen, Ketil Winther; Snijder, Eric J.; Schleich, Sybille; Roos, Norbert; Griffiths, Gareth O. & Locker, Jacomine Krijnse (2000). Characterization of vaccinia virus intracellular cores: implications for viral uncoating and core structure. Journal of Virology. ISSN 0022-538X. 74(8), p. 3525–3536.
  • Hammarstedt, Maria; Wallengren, Kristina; Pedersen, Ketil Winther; Roos, Norbert & Garoff, Henrik (2000). Minimal exclusion of plasma membrane proteins during retroviral envelope formation. Proceedings of the National Academy of Sciences of the United States of America. ISSN 0027-8424. 97(13), p. 7527–7532.
  • Senoo, H; Imai, K; Wake, K; Wold, Heidi Libæk; Moskaug, Jan Øivind & Kojima, N [Show all 14 contributors for this article] (1999). Vitamin A-storing system in mammals and birds in arctic area: a study in the Svalbard archipelego. In Wisse, E; Knook, D.L.; de Zanger, R & Fraser, R (Ed.), Cells of the hepatic sinusoid. Kupffer Cell Foundation. ISSN 90-803856-2-X. p. 34–35.
  • Pedersen, Ketil Winther; Meer, Y. van der ; Roos, Norbert & Snijder, Eric J. (1999). Open reading frame 1a-encoded subunits of the arterivirus replicase induce endoplasmic reticulum-derived double-membrane vesicles which carry the viral replication complex. Journal of Virology. ISSN 0022-538X. p. 2016–2026.
  • Roos, Norbert & Griffiths, Gareth Wyn (1998). Use of ultrathin cryo-and plastic sections for immunoelectron microscopy. In Celis, Julio E. (Eds.), Cell Biology: A Laboratory Handbook. Academic Press. ISSN 0-12-164728-5. p. 332–339.
  • Brech, Andreas; Kjeken, Rune; Emblemsvåg, Marianne Synnes; Berg, Trond; Roos, Norbert & Prydz, Kristian (1998). Endocytosed ricin and asialoorosomucoid follow different intracellular pathways in hepatocytes. Biochimica et Biophysica Acta. ISSN 0006-3002. 1373(1), p. 195–208.
  • Nagy, Nina; Holven, Kirsten B.; Roos, Norbert; Senoo, Haruki; Kojima, Naosuke & Norum, Kaare Reidar [Show all 7 contributors for this article] (1997). Storage of vitmain A in extrahepatic stellate cells in normal rats. Journal of Lipid Research. ISSN 0022-2275. 38, p. 645–658.
  • Nagy, Nina Elisabeth; Holven, Kirsten Bjørklund; Roos, Norbert; Senoo, Haruki; Kojima, Naosuke & Norum, Kaare Reidar [Show all 7 contributors for this article] (1997). Storage of vitamin A in extrahepatic stellate cells in normal rats. Journal of Lipid Research. ISSN 0022-2275. 38, p. 645–658.
  • Brech, Andreas; Løvdahl, T; Kjekken, Rune; Roos, Norbert & Berg, Trond (1996). Density shift of endocytic vesicles induced by uptake of colloidal gold particles in rat hepatocytes. Zeitschrift für Gastroenterologie - German Journal of Gastroenterology. ISSN 0044-2771. 34, p. 79–80.
  • Roos, Norbert; Cyrklaff, Marek; Cudmore, Sally; Blasco, Rafael; Krijnse-Locker, Jacomine & Griffiths, Gareth Wyn (1996). A novel immunogold cryoelectron microscopic approach to investigate the structure of the intracellular and extracellular forms of vaccinia virus. EMBO Journal. ISSN 0261-4189. 15(10), p. 2343–2355.
  • Kjekken, Rune; Brech, Andreas; Løvdal, Torunn; Roos, Norbert & Berg, Trond (1995). Involvement of early amd late lysosomes in the degradation of mannosylated ligands by rat liver endothelial cells. Experimental Cell Research. ISSN 0014-4827. 216, p. 290–298.
  • Fengsrud, Monica ; Roos, Norbert; Berg, Trond; Liou, Willisa; Slot, Jan W & Seglen, Per O. (1995). Ultrastructural and immunocytochemical characterization of autophagic vacoules in isolated hepatocytes: Effects of vinblastine and asparagine on vacoule distributions. Experimental Cell Research. ISSN 0014-4827. 221, p. 504–519.
  • Holen, Ingunn; Gordon, Paul B.; Strømhaug, Per E.; Berg, Trond Olav; Fengsrud, Monica & Brech, Andreas [Show all 9 contributors for this article] (1995). Inhibition of asialoglycoprotein endocytosis and degradation in rat hepatocytes by protein phosphatase inhibitors. Biochemical Journal. ISSN 0264-6021. 311, p. 317–326.
  • Roos, Norbert & Griffiths, Gareth Wyn (1994). Use of ultrathin cryo-and plastic sections for immunoelectron microscopy. In Celis, Julio E. (Eds.), Cell Biology: A Laboratory Handbook. Academic Press. ISSN 0-12-164716-1. p. 168–176.
  • Ørvim, Una; Roald, Helge Einar; Stephens, Roos W; Roos, Norbert & Sakariassen, Kjell S. (1994). Tissue factor-induced coagulation triggers platelet thrombus formation as efficiently as fibrillar collagen at arterial blood flow conditions. Arteriosclerosis and thrombosis. ISSN 1049-8834. 14, p. 1976–1983.
  • Brorson, Sverre Henning; Roos, Norbert & Skjørten, Fredrik (1994). Antibody penetration into LR-white sections. Micron. ISSN 0968-4328. 25(5), p. 453–460.
  • Cyrklaff, Marek; Roos, Norbert; Gross, H & Dubochet, Jacque (1994). Particle-surface interaction in thin vitrified films for cryo-electron microscopy. Journal of Microscopy. ISSN 0022-2720. 175, p. 135–142.
  • Senoo, H; Smeland, Sigbjørn; Stang, Espen; Roos, Norbert; Berg, Trond & Norum, Kaare [Show all 7 contributors for this article] (1993). Stellate cells take up retinol-binding protein. In Knook, D.L. & Wisse, E (Ed.), Cells of the hepatic sinusoid. The Kupffer Cell Foundation. ISSN 90-800079-5-1. p. 423–425.
  • Gudmundsen, Ola; Roos, Norbert; Berg, Trond & Nenseter, Marit Sofie (1993). The role of nonparenchymal liver cells in the uptake of plasma LDL and beta-VLDL in cholesterol-fed rabbits. In Knook, D.L. & Wisse, E (Ed.), Cells of the hepatic sinusoid. The Kupffer Cell Foundation. ISSN 90-800079-5-1. p. 461–464.
  • Berg, Trond; Brech, Andreas; Kjeken, Rune & Roos, Norbert (1993). Prelysosomal degradation in rat liver endothelial cells. In Knook, D.L. & Wisse, E (Ed.), Cells of the hepatic sinusoid. The Kupffer Cell Foundation. ISSN 90-800079-5-1. p. 426–430.
  • Gudmundsen, Ola; Berg, Trond; Roos, Norbert & Nenseter, Marit Sofie (1993). Hepatic uptake of beta-VLDL in cholesterol-fed rabbits. Journal of Lipid Research. ISSN 0022-2275. 34, p. 589–600.
  • Senoo, Haruki; Smeland, Sigbjørn; Malaba, Lucie; Bjerknes, Tove; Stang, Espen & Roos, Norbert [Show all 9 contributors for this article] (1993). Transfer or retinol-binding protein from HepG2 human hepatoma cells to cocultured rat stellate cells. Proceedings of the National Academy of Sciences of the United States of America. ISSN 0027-8424. 90, p. 3616–3620.
  • Brech, Andreas; Magnusson, Sigurdur; Stang, Espen; Berg, Trond & Roos, Norbert (1993). Receptor-mediated endocytosis of ricin in rat liver endothelial cells: An immonocytochemical study. European Journal of Cell Biology. ISSN 0171-9335. 60, p. 154–162.
  • Berg, Trond; Magnusson, Sigurdur; Stang, Espen & Roos, Norbert (1992). Receptor-mediated endocytosis in liver endothelial cells. Evidence of lysosomal heterogeneity. In Courtoy, Pierre J. (Eds.), Endocytosis: From cell biology to health, disease and therapy. Springer. ISSN 3-540-53146-7. p. 239–245.
  • Rappersberger, Klemens; Roos, Norbert & Stanley, John R. (1992). Immunological and biochemical identification of the Pemphigus Foliaceous autoantigen within desmosomes. Journal of Investigative Dermatology. ISSN 0022-202X. 99(3), p. 323–330.
  • Stang, Espen; Krause, Jürgen; Seydel, W; Berg, Trond & Roos, Norbert (1992). Endocytosis and intracellular processing of tissue-type plasminogen activator by rat liver cells in vivo. Biochemical Journal. ISSN 0264-6021. 282, p. 841–851.
  • Stang, Espen; Roos, Norbert; Schlüter, Michael; Berg, Trond & Krause, Jürgen (1992). Evidence for carbohydrate-independent endocytosis of tissue-type plasminogen activator by liver cells. Biochemical Journal. ISSN 0264-6021. 285, p. 799–804.
  • Nenseter, Marit Sofie; Gudmundsen, O.; Roos, Norbert; Mælandsmo, Gunhild Mari; Drevon, Christian A & Berg, Trond (1992). Role of liver endothelial and Kupffer cells in clearing low density lipoprotein from blood in hypercholesterolemic rabbits. Journal of Lipid Research. ISSN 0022-2275. p. 867–877.

View all works in Cristin

  • Vogel, Anne Ilse Maria; Winther-Larsen, Hanne Cecilie; Roos, Norbert; Lale, Rahmi & Hohmann-Marriott, Martin Frank (2018). A novel function of type IV pili in iron uptake in Synechococcus sp. PCC 7002.
  • Vogel, Anne Ilse Maria; Winther-Larsen, Hanne Cecilie; Roos, Norbert; Lale, Rahmi & Hohmann-Marriott, Martin Frank (2018). Conductive Type IV pili play an important role for iron acquisition in the marine cyanobacterium Synechococcus sp. PCC 7002 .
  • Vogel, Anne Ilse Maria; Winther-Larsen, Hanne Cecilie; Roos, Norbert; Lale, Rahmi & Hohmann-Marriott, Martin Frank (2018). Function of type IV pili in iron acquisition in Synechococcus sp. PCC 7002.
  • Vogel, Anne Ilse Maria; Winther-Larsen, Hanne Cecilie; Roos, Norbert; Lale, Rahmi & Hohmann-Marriott, Martin Frank (2018). Function of type IV pili in iron acquisition in Synechococcus sp. PCC 7002.
  • Vogel, Anne Ilse Maria; Winther-Larsen, Hanne Cecilie; Roos, Norbert; Lale, Rahmi & Hohmann-Marriott, Martin Frank (2018). Function of type IV pili in iron acquisition in Synechococcus sp. PCC 7002.
  • Wessel, Øystein; Braaen, Stine; Alarcon, Marta; Haatveit, Hanne Merethe; Roos, Norbert & Markussen, Turhan [Show all 9 contributors for this article] (2017). Infection with purified Piscine orthoreovirus demonstrates a causal relationship with heart and skeletal muscle inflammation in Atlantic salmon.
  • Brudal, Espen; Milton, Debra L; myrtennäs, Kerstin; Roos, Norbert; Griffiths, Gareth Wyn & Winther-Larsen, Hanne C. (2014). A degenerative Type IV pilus like system is functional and required for virulence in the fish pathogen Francisella noatunensis subsp. noatunensis.
  • Vik, Åshild; Anonsen, Jan Haug; Aas, Finn Erik; Hegge, Finn Terje; Roos, Norbert & Koomey, Michael [Show all 7 contributors for this article] (2014). Type IV pilus assembly proficiency and dynamics influence pilin subunit phospho-form marcro- and microheterogeneity in Neisseria gonorrhoeae.
  • Lystad, Alf Håkon; Sporstol, Marita; Foroughi, Masoud; Roos, Norbert; Berg, Trond & Eskild, Winnie (2009). Regulation of VEGF expression by vitamin D i hepatic stellate cells - possible attenuation by the nuclear receptor coregulator NCY-G1.
  • Lystad, Alf Håkon; Sporstol, Marita; Foroughi, Masoud; Roos, Norbert; Berg, Trond & Eskild, Winnie (2009). Regulation of VEGF expression by vitamin D in hepatic stellate cells - possible attenuation by the nuclear receptor coregulator NCU-G1.
  • Farkas, Julia; Christian, P.; Hylland, Ketil ; Ellesat, Kathrin; Roos, Norbert & Urrea, J. [Show all 9 contributors for this article] (2009). Effects of Silver and Gold nanoparticles on rainbow trout (Oncorhynchus mykiss) hepatocytes.
  • Salomonsson, Emelie; Koomey, Michael; Roos, Norbert; Forsberg, Åke & Winther-Larsen, Hanne C (2007). Exploring the role of virulence-associated pilin proteins from Francisella tularensis using heterologous expression in Neisseria.
  • Salomonsson, Emelie; Koomey, Michael; Roos, Norbert; Forsberg, Åke & Winther-Larsen, Hanne C (2007). Knowledge about the bioterrorism class A agent Francisella tularensis by utilizing Neisseria gonorrhoeae.
  • Kåsi, Cecilie; Sporstol, Marita; Roos, Norbert; Berg, Trond & Eskild, Winnie (2007). NUCLEAR RECEPTORS IN HEPATIC STELLATE CELL ACTIVATION.
  • Winther-Larsen, Hanne C; Løvold, Cecilia; Wolfgang, Matthew; van Putten, JPM; Roos, Norbert & Aas, Finn Erik [Show all 10 contributors for this article] (2006). Microbial hair-extention.
  • Winther-Larsen, Hanne C; Heiniger, Ryan W; Roos, Norbert; Egge-Jacobsen, Wolfgang; van Putten, JPM & Koomey, Michael [Show all 7 contributors for this article] (2006). Dynamics of Type IV pili Biogenesis in Pseudomonas aeruginosa.
  • Winther-Larsen, Hanne C; Heiniger, Ryan; Roos, Norbert; van Putten, JPM; Koomey, Michael & Wolfgang, Matthew (2006). Dynamics of Type IV pilus biogenesis in Pseudomonas aeruginosa.
  • Løvold, Cecilia; Aas, Finn Erik; Winther-Larsen, Hanne C; Egge-Jacobsen, Wolfgang; Hegge, Finn Terje & Roos, Norbert [Show all 8 contributors for this article] (2005). Mutant analysis of dca: a gene encoding a putative transferase that mediates phosphoethanolamine and phosphocholine modifications of the Type IV pili in Neisseria gonorrhoeae.
  • Winther-Larsen, Hanne C; Løvold, Cecilia; Wolfgang, Matthew; van Putten, JPM; Roos, Norbert & Aas, Finn Erik [Show all 10 contributors for this article] (2005). Pseudomonas aeruginosa PAK Type IV pili expression in Neisseria gonorrhoeae complements Tfp associated functions.
  • Aas, Finn Erik; Løvold, Cecilia; Winther-Larsen, Hanne C; Jacobsen, Wolfgang Mathias; Roos, Norbert & Koomey, John Michael (2004). Characterization of dca, a gene involved in posttranslational modification of Neisseria gonorrhoeae Type IV Pili with phosphoethanolamine and phosphocholine.
  • Winther-Larsen, Hanne C; Løvold, Cecilia; Aas, Finn Erik; Roos, Norbert & Koomey, John Michael (2004). Complementation of both transformation competence and human cell adherence by hetrologous expression of the Pseudomonas aeruginosa Type IV pilin sunbunit in Neisseria gonorrhoea.
  • Winther-Larsen, Hanne C; Løvold, Cecilia; Aas, Finn Erik; Roos, Norbert & Koomey, John Michael (2004). Complementation of both transformation competence and human cell adherence by hetrologous expression of the Pseudomonas aeruginosa Type IV pilin sunbunit in Neisseria gonorrhoea.
  • Winther-Larsen, Hanne C; Løvold, Cecilia; Aas, Finn Erik; Roos, Norbert & Koomey, John Michael (2004). Complementation of both transformation competence and human cell adherence by hetrologous expression of the Pseudomonas aeruginosa Type IV pilin sunbunit in Neisseria gonorrhoea.
  • Oksvold, Morten Pedersen; Skarpen, Ellen; Roos, Norbert & Huitfeldt, Henrik (1999). Immunocytochemical localization of ligand-activated phosphorylated EGFR in endosomes. Proceedings of the American Association of Cancer Research. ISSN 0197-016X. 40.
  • Senoo, Haruki; Imamura, Kazuyuki; Wake, Kenjiro; Wold, Heidi L.; Moshaug, Jan Øivind & Kojima, Naosuke [Show all 14 contributors for this article] (1998). Vitamin A-storing system in mammals and birds in the arctic area - a study in the Svalbard archipelago.
  • Brech, Andreas; Løvdahl, T; Kjeken, R; Roos, Norbert & Berg, Trond (1996). Density shift of endocytic vesicles induced by uptake of colloidal gold particles in rat hepatocytes. Zeitschrift für Gastroenterologie - German Journal of Gastroenterology. ISSN 0044-2771. 34, p. 79–80.
  • Roos, Norbert; Cyrklaff, Marek; Cudmore, Sally; Krijnse-Locker, Jacomine; Blasco, Rafael & Griffiths, Gareth Wyn (1995). Cryo EM immunocytochemical analysis of the two infectious forms of vaccinia virus. European Journal of Cell Biology. ISSN 0171-9335. p. 108–109.
  • Roos, Norbert (1992). Book review. Ultramicroscopy. ISSN 0304-3991. 40, p. 191–194.

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Published Nov. 4, 2010 2:47 PM - Last modified Jan. 25, 2013 10:16 AM

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