• Common gene expression signatures in Parkinson’s disease are driven by changes in cell composition 

      Sanchez Nido, Gonzalo; Dick, Fiona; Toker, Lilah; Petersen, Kjell; Alves, Guido Werner; Tysnes, Ole-Bjørn; Jonassen, Inge; Haugarvoll, Kristoffer; Tzoulis, Charalampos (Journal article; Peer reviewed, 2020-04-21)
      The etiology of Parkinson’s disease is largely unknown. Genome-wide transcriptomic studies in bulk brain tissue have identified several molecular signatures associated with the disease. While these studies have the potential ...
    • Comprehensive characterization of copy number variation (CNV) called from array, long- and short-read data 

      Lavrichenko, Ksenia; Johansson, Stefan; Jonassen, Inge (Journal article; Peer reviewed, 2021)
      Background SNP arrays, short- and long-read genome sequencing are genome-wide high-throughput technologies that may be used to assay copy number variants (CNVs) in a personal genome. Each of these technologies comes with ...
    • Early response evaluation by single cell signaling profiling in acute myeloid leukemia 

      Tislevoll, Benedicte Sjo; Hellesøy, Monica; Fagerholt, Oda Helen Eck; Gullaksen, Stein-Erik; Srivastava, Aashish; Birkeland, Even; Kleftogiannis, Dimitrios; Ayuda Duran, Pilar; Piechaczyk, Laure Isabelle; Tadele, Dagim Shiferaw; Skavland, Jørn; Panagiotis, Baliakas; Hovland, Randi; Andresen, Vibeke; Seternes, Ole Morten; Tvedt, Tor Henrik Anderson; Aghaeepour, Nima; Gavasso, Sonia; Porkka, Kimmo; Jonassen, Inge; Fløisand, Yngvar; Enserink, Jorrit; Blaser, Nello; Gjertsen, Bjørn Tore (Journal article; Peer reviewed, 2023)
      Aberrant pro-survival signaling is a hallmark of cancer cells, but the response to chemotherapy is poorly understood. In this study, we investigate the initial signaling response to standard induction chemotherapy in a ...
    • Exome Sequencing and Genetic Testing for MODY 

      Johansson, Stefan; Irgens, Henrik; Chudasama, Kishan K.; Molnes, Janne; Aerts, Jan; Knappskog, Per; Njølstad, Pål Rasmus; Roque, Francisco S.; Jonassen, Inge; Molven, Anders (Peer reviewed; Journal article, 2012-05-25)
      Context: Genetic testing for monogenic diabetes is important for patient care. Given the extensive genetic and clinical heterogeneity of diabetes, exome sequencing might provide additional diagnostic potential when standard ...
    • GBA2 mutations cause a Marinesco-Sjogren-like syndrome: Genetic and biochemical studies 

      Haugarvoll, Kristoffer; Johansson, Stefan; Rodriguez, Carlos E.; Boman, Helge; Haukanes, Bjørn Ivar; Bruland, Ove; Roque, Francisco; Jonassen, Inge; Blomqvist, Maria; Telstad, Wenche; Månsson, Jan-Eric; Knappskog, Per; Bindoff, Laurence (Peer reviewed; Journal article, 2017-01-04)
      Background: With the advent new sequencing technologies, we now have the tools to understand the phenotypic diversity and the common occurrence of phenocopies. We used these techniques to investigate two Norwegian families ...
    • Gene expression profile of oral squamous cell carcinomas from Sri Lankan betel quid users 

      Lunde, Mai Lill Suhr; Dysvik, Bjarte; Bruland, Ove; Warnakulasuriya, K. A. A. Saman; Amaratunga, Asoka N.; Jonassen, Inge; Vasstrand, Endre N.; Ibrahim, Salah Osman (Peer reviewed; Journal article, 2007-11)
      Oral squamous cell carcinoma (OSCC) is one of the major health problems in Sri Lanka and the disease is associated with the habit of Betel Quid (BQ) chewing. Using 35k oligo microarrays, we analyzed the gene expression ...
    • Gene expression profiles in rat brain disclose CNS signature genes and regional patterns of functional specialisation 

      Stansberg, Christine; Vik-Mo, Audun O.; Holdhus, Rita; Breilid, Harald; Srebro, Boleslaw; Petersen, Kjell; Jørgensen, Hugo A.; Jonassen, Inge; Steen, Vidar Martin (Peer reviewed; Journal article, 2007-04-04)
      Background: The mammalian brain is divided into distinct regions with structural and neurophysiological differences. As a result, gene expression is likely to vary between regions in relation to their cellular composition ...
    • Gene-methylation interactions: Discovering region-wise DNA methylation levels that modify SNP-associated disease risk 

      Romanowska, Julia; Haaland, Øystein Ariansen; Jugessur, Astanand; Gjerdevik, Miriam; Xu, Zongli; Taylor, Jack A.; Wilcox, Allen J; Jonassen, Inge; Lie, Rolv T.; Gjessing, Håkon K. (Journal article; Peer reviewed, 2020)
      Background Current technology allows rapid assessment of DNA sequences and methylation levels at a single-site resolution for hundreds of thousands of sites in the human genome, in thousands of individuals simultaneously. ...
    • Genes of cell-cell interactions, chemotherapy detoxification and apoptosis are induced during chemotherapy of acute myeloid leukemia 

      Øyan, Anne Margrete; Ånensen, Nina; Bø, Trond Hellem; Stordrange, Laila; Jonassen, Inge; Bruserud, Øystein; Kalland, Karl-Henning; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2009-03-05)
      Background: The molecular changes in vivo in acute myeloid leukemia cells early after start of conventional genotoxic chemotherapy are incompletely understood, and it is not known if early molecular modulations reflect ...
    • High accuracy mass spectrometry analysis as a tool to verify and improve gene annotation using Mycobacterium tuberculosis as an example 

      De Souza, Gustavo A.; Målen, Hiwa; Søfteland, Tina; Sælensminde, Gisle; Prasad, Swati; Jonassen, Inge; Wiker, Harald G. (Peer reviewed; Journal article, 2008-07-02)
      Background: While the genomic annotations of diverse lineages of the Mycobacterium tuberculosis complex are available, divergences between gene prediction methods are still a challenge for unbiased protein dataset generation. ...
    • LOCATOR: feature extraction and spatial analysis of the cancer tissue microenvironment using mass cytometry imaging technologies 

      Ehsani, Rezvan; Jonassen, Inge; Akslen, Lars Andreas; Kleftogiannis, Dimitrios (Journal article; Peer reviewed, 2023)
      Motivation Recent advances in highly multiplexed imaging have provided unprecedented insights into the complex cellular organization of tissues, with many applications in translational medicine. However, downstream ...
    • Protected sampling is preferable in bronchoscopic studies of the airway microbiome 

      Grønseth, Rune; Drengenes, Christine; Wiker, Harald G; Tangedal, Solveig; Xue, Yaxin; Husebø, Gunnar; Svanes, Øistein; Lehmann, Sverre; Aardal, Marit Elisabeth; Hoang, Tuyen; Kalananthan, Tharmini; Martinsen, Einar Marius Hjellestad; Leiten, Elise Orvedal; Aanerud, Marianne; Nordeide, Eli; Haaland, Ingvild; Jonassen, Inge; Bakke, Per S.; Eagan, Tomas Mikal (Journal article; Peer reviewed, 2017)
      The aim was to evaluate susceptibility of oropharyngeal contamination with various bronchoscopic sampling techniques. 67 patients with obstructive lung disease and 58 control subjects underwent bronchoscopy with ...
    • Repeated bronchoscopy in health and obstructive lung disease: is the airway microbiome stable? 

      Nielsen, Rune; Xue, Yaxin; Jonassen, Inge; Haaland, Ingvild; Kommedal, Øyvind; Wiker, Harald Gotten; Drengenes, Christine; Bakke, Per S.; Eagan, Tomas Mikal Lind (Journal article; Peer reviewed, 2021)
      Objective Little is known concerning the stability of the lower airway microbiome. We have compared the microbiota identified by repeated bronchoscopy in healthy subjects and patients with ostructive lung diseaseases ...
    • Tumour-associated glial host cells display a stem-like phenotype with a distinct gene expression profile and promote growth of GBM xenografts 

      Leiss, Lina Wik; Mutlu, Ercan; Øyan, Anne Margrete; Yan, Tao; Tsinkalovsky, Oleg; Sleire, Linda; Petersen, Kjell; Rahman, Mohummad Aminur; Johannessen, Mireille Kayitesi; Mitra, Siddharta S.; Jacobsen, Hege; Talasila, Krishna Mukharji; Miletic, Hrvoje; Jonassen, Inge; Li, Xingang; Brons, Nicolas H.C.; Kalland, Karl-Henning; Wang, Jian; Enger, Per Øyvind (Peer reviewed; Journal article, 2017-02-07)
      Background: Little is known about the role of glial host cells in brain tumours. However, supporting stromal cells have been shown to foster tumour growth in other cancers. Methods: We isolated stromal cells from patient-derived ...