Browsing Bergen Open Research Archive by Author "Gjertsen, Bjørn Tore"

Now showing items 1-20 of 65

    • 4-Alkylated Silver–N-Heterocyclic Carbene (NHC) Complexes with Cytotoxic Effects in Leukemia Cells 

      Sandtorv, Alexander Harald; Leitch, Calum; Bedringaas, Siv Lise; Gjertsen, Bjørn Tore; Bjørsvik, Hans-Rene (Peer reviewed; Journal article, 2015-08-06)
      Computational chemistry has shown that backbone-alkylated imidazoles ought to be efficient ligands for transition metal catalysts with improved carbene-to-metal donation. In this work, such alkylated imidazoles were ...

    • The absent/low expression of CD34 in NPM1-mutated AML is not related to cytoplasmic dislocation of NPM1 mutant protein 

      Pianigiani, Giulia; Rocchio, Francesca; Peruzzi, Sara; Andresen, Vibeke; Bigerna, Barbara; Sorcini, Daniele; Capurro, Michela; Gjertsen, Bjørn Tore; Sportoletti, Paolo; Di Ianni, Mauro; Martelli, Maria Paola; Brunetti, Lorenzo; Falini, Brunangelo (Journal article; Peer reviewed, 2022)

    • The added value of multi-state modelling in a randomized controlled trial: The HOVON 102 study re-analyzed 

      Bakunina, Katerina; Putter, Hein; Versluis, Jurjen; Koster, Eva A. S.; van der Holt, Bronno; Manz, Markus G.; Breems, Dimitri A.; Gjertsen, Bjørn Tore; Cloos, Jacqueline; Valk, Peter J. M.; Passweg, Jakob; Pabst, Thomas; Ossenkoppele, Gert J.; Löwenberg, Bob; Cornelissen, Jan J.; de Wreede, Liesbeth C. (Journal article; Peer reviewed, 2022)
      Clofarabine is an active antileukemic drug for subgroups of patients with acute myeloid leukemia (AML). Multi-state models can provide additional insights to supplement the original intention-to-treat analysis of randomized ...

    • Administration Methods of Mesenchymal Stem Cells in the Treatment of Burn Wounds 

      Jenssen, Astrid Bjørke; Mohamed-Ahmed, Samih Salah Eldin Mahgoub; Kankuri, Esko; Brekke, Ragnvald Ljones; Guttormsen, Anne Berit; Gjertsen, Bjørn Tore; Mustafa, Kamal Babikeir Elnour; Almeland, Stian Kreken (Journal article; Peer reviewed, 2022)
      Cellular therapies for burn wound healing, including the administration of mesenchymal stem or stromal cells (MSCs), have shown promising results. This review aims to provide an overview of the current administration methods ...

    • Anti-proliferative activity of the NPM1 interacting natural product avrainvillamide in acute myeloid leukemia 

      Andresen, Vibeke; Erikstein, Bjarte Skoe; Mukherjee, Herschel; Sulen, Andre; Popa, Mihaela Lucia; Sørnes, Steinar; Reikvam, Håkon; Chan, Kok-Ping; Hovland, Randi; McCormack, Emmet; Bruserud, Øystein; Myers, Andrew G.; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2016-12-01)
      Mutated nucleophosmin 1 (NPM1) acts as a proto-oncogene and is present in ~30% of patients with acute myeloid leukemia (AML). Here we examined the in vitro and in vivo anti-leukemic activity of the NPM1 and chromosome ...

    • Bi-specific TCR-anti CD3 redirected T-cell targeting of NY-ESO-1- and LAGE-1-positive tumors 

      McCormack, Emmet; Adams, Katherine J.; Hassan, Namir J.; Kotian, Akhil; Lissin, Nikolai M.; Sami, Malkit; Mujic, Maja; Osdal, Tereza; Gjertsen, Bjørn Tore; Baker, Deborah; Powlesland, Alex S.; Aleksic, Milos; Vuidepot, Annelise; Morteau, Olivier; Sutton, Deborah H.; June, Carl H.; Kalos, Michael; Ashfield, Rebecca; Jakobsen, Bent K. (Peer reviewed; Journal article, 2012-12)
      NY-ESO-1 and LAGE-1 are cancer testis antigens with an ideal profile for tumor immunotherapy, combining up-regulation in many cancer types with highly restricted expression in normal tissues and sharing a common HLA-A*0201 ...

    • Bimodal expression of potential drug target CLL-1 (CLEC12A) on CD34+ blasts of AML patients 

      Ngai, Lok Lam; Ma, Connie Y.; Maguire, Orla; Do, An D.; Robert, Alberto; Logan, Aaron C.; Griffiths, Elizabeth A.; Nemeth, Michael J.; Green, Cherie; Pourmohamad, Tony; van Kuijk, Bo J.; Snel, Alexander N.; Kwidama, Zinia W.; Venniker-Punt, Bianca; Cooper, James; Manz, Markus G.; Gjertsen, Bjørn Tore; Smit, Linda; Ossenkoppele, Gert J.; Janssen, Jeroen J. W. M.; Cloos, Jacqueline; Sumiyoshi, Teiko (Journal article; Peer reviewed, 2021)
      Objectives This study aims to retrospectively assess C-lectin-like molecule 1 (CLL-1) bimodal expression on CD34+ blasts in acute myeloid leukemia (AML) patients (total N = 306) and explore potential CLL-1 bimodal ...

    • Bortezomib administered prior to temozolomide depletes MGMT, chemosensitizes glioblastoma with unmethylated MGMT promoter and prolongs animal survival 

      Rahman, Mohummad Aminur; Gras Navarro, Andrea; Brekke, Jorunn; Engelsen, Agnete; Bindesbøll, Christian; Sarowar, Shahin; Bahador, Marzieh; Bifulco, Ersilia; Goplen, Dorota; Waha, Andreas; Lie, Stein Atle; Gjertsen, Bjørn Tore; Selheim, Frode; Enger, Per Øyvind; Simonsen, Anne; Enger, Martha Chekenya (Peer reviewed; Journal article, 2019-08-15)
      Background Resistance to temozolomide (TMZ) is due in part to enhanced DNA repair mediated by high expression of O6-methyl guanine DNA methyltransferase (MGMT) that is often characterised by unmethylated promoter. Here, ...

    • Camptothecin and khat (Catha edulis Forsk.) induced distinct cell death phenotypes involving modulation of c-FLIPL, Mcl-1, procaspase-8 and mitochondrial function in acute myeloid leukemia cell lines 

      Bredholt, Therese; Dimba, Elizabeth A. O.; Hagland, Hanne; Wergeland, Line; Skavland, Jørn; Fossan, Kjell Ove; Tronstad, Karl Johan; Johannessen, Anne Christine; Vintermyr, Olav Karsten; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2009-11-13)
      Background: An organic extract of the recreational herb khat (Catha edulis Forsk.) triggers cell death in various leukemia cell lines in vitro. The chemotherapeutics camptothecin, a plant alkaloid topoisomerase I inhibitor, ...

    • CD24-targeted fluorescence imaging in patient-derived xenograft models of high-grade serous ovarian carcinoma 

      Kleinmanns, Katrin; Bischof, Katharina; Anandan, Shamundeeswari; Popa, Mihaela Lucia; Akslen, Lars A.; Gjertsen, Bjørn Tore; Karlsen, Ida; Fosse, Vibeke Samuelsen; Bjørge, Line; Mc Cormack, Emmet (Journal article; Peer reviewed, 2020)
      Background The survival rate of patients with advanced high-grade serous ovarian carcinoma (HGSOC) remains disappointing. Clinically translatable orthotopic cell line xenograft models and patient-derived xenografts (PDXs) ...

    • A cell competition-based small molecule screen identifies a novel compound that induces dual c-Myc depletion and p53 activation 

      Tadele, Dagim Shiferaw; Robertson, Joseph; Crispin, Richard; Herrera, Carmen; Chlubnová, Markéta; Piechaczyk, Laure Isabelle; Ayuda-Duran, Maria del Pilar; Singh, Sachin Kumar; Gedde-Dahl, Tobias; Fløisand, Yngvar; Skavland, Jørn; Wesche, Jørgen; Gjertsen, Bjørn Tore; Enserink, Jorrit (Journal article; Peer reviewed, 2021)
      Breakpoint Cluster Region-Abelson kinase (BCR–Abl) is a driver oncogene that causes chronic myeloid leukemia and a subset of acute lymphoid leukemias. Although tyrosine kinase inhibitors provide an effective treatment for ...

    • Cell therapy induced regeneration of severely atrophied mandibular bone in a clinical trial 

      Gjerde, Cecilie Gudveig; Mustafa, Kamal Babikeir Eln; Hellem, Sølve; Rojewski, Markus; Gjengedal, Harald; Yassin, Mohammed Ahmed Alamin Yousif; Feng, Xin; Skaale, Siren G; Berge, Trond Inge; Rosén, Annika; Shi, Xieqi; Ahmed, Aymen B; Gjertsen, Bjørn Tore; Schrezenmeier, Hubert; Layrolle, Pierre (Journal article; Peer reviewed, 2018)
      Background Autologous grafting, despite some disadvantages, is still considered the gold standard for reconstruction of maxillofacial bone defects. The aim of this study was to evaluate bone regeneration using bone ...

    • Cerebrospinal fluid proteome shows disrupted neuronal development in multiple sclerosis 

      Mosleth, Ellen Færgestad; Vedeler, Christian Alexander; Liland, Kristian Hovde; McLeod, Anette; Bringeland, Gerd Haga; Kroondijk, Liesbeth; Berven, Frode Steingrimsen; Lysenko, Artem; Rawlings, Christopher J.; El-Hajj Eid, Karim; Opsahl, Jill Anette; Gjertsen, Bjørn Tore; Myhr, Kjell-Morten; Gavasso, Sonia (Journal article; Peer reviewed, 2021-02-18)
      Despite intensive research, the aetiology of multiple sclerosis (MS) remains unknown. Cerebrospinal fluid proteomics has the potential to reveal mechanisms of MS pathogenesis, but analyses must account for disease ...

    • Chronic Myeloid Leukemia Relapsing 25 Years after Allogenic Stem Cell Transplantation 

      Reikvam, Håkon; Skavland, Jørn; Gullaksen, Stein-Erik; Hovland, Randi; Gedde-Dahl, Tobias; Bruserud, Øystein; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2018-09-23)
      Chronic myeloid leukemia (CML) is a myeloproliferative disorder in which neoplastic cells exhibit the Philadelphia chromosome and the related oncoprotein BCR-ABL1. Allogeneic stem cell transplantation (allo-SCT) was ...

    • Colony stimulating factor 1 receptor in acute myeloid leukemia 

      Sletta, Kristine Yttersian; Marin, Oriol Castells; Gjertsen, Bjørn Tore (Journal article; Peer reviewed, 2021)
      Acute myeloid leukemia (AML) is an aggressive heterogeneous blood cancer derived from hematopoietic stem cells. Tumor-stromal interactions in AML are of importance for disease development and therapy resistance, and bone ...

    • The combination of valproic acid, all-trans retinoic acid and low-dose cytarabine as disease-stabilizing treatment in acute myeloid leukemia 

      Fredly, Hanne Kristin; Ersvær, Elisabeth; Kittang, Astrid Marta Olsnes; Tsykunova, Galina; Gjertsen, Bjørn Tore; Bruserud, Øystein (Peer reviewed; Journal article, 2013-08-01)
      Background: A large proportion of patients with acute myeloid leukemia (AML) are not fit for intensive and potentially curative therapy due to advanced age or comorbidity. Previous studies have demonstrated that a subset ...

    • A Comparison of p53 Isoform Profiles and Apoptosis Induced by Camptothecin or a Herbal Khat Extract (Catha Edulis (Vahl) Forssk. ex Endl.) in Leukemic Cell Lines: Exploring Cellular Responses in Therapy Development 

      Onyango, Therese Bredholt; Hjelle, Sigrun Margrethe; Haaland, Ingvild; Vintermyr, Olav Karsten; Johannessen, Anne Christine; Gjertsen, Bjørn Tore (Journal article; Peer reviewed, 2020)
      Khat (Catha edulis (Vahl) Forssk. ex Endl.) is habitually used as a natural stimulant by millions of people, but is associated with adverse effects on gastrointestinal, cardiovascular and central neural systems. At the ...

    • Correlation analysis of two-dimensional gel electrophoretic protein patterns and biological variables 

      Van Belle, Werner; Ånensen, Nina; Haaland, Ingvild; Bruserud, Øystein; Høgda, Kjell-Arild; Gjertsen, Bjørn Tore (BMC Bioinformatics 7(198), Peer reviewed; Journal article, 2006-04-10)
      Background: Two-dimensional gel electrophoresis (2DE) is a powerful technique to examine post-translational modifications of complexly modulated proteins. Currently, spot detection is a necessary step to assess relations ...

    • Cross-Species Functional Genomic Analysis Identifies Resistance Genes of the Histone Deacetylase Inhibitor Valproic Acid 

      Forthun, Rakel Brendsdal; SenGupta, Tanima; Skjeldam, Hanne Kim; Lindvall, Jessica Margareta; McCormack, Emmet; Gjertsen, Bjørn Tore (Peer reviewed; Journal article, 2012-11-14)
      The mechanisms of successful epigenetic reprogramming in cancer are not well characterized as they involve coordinated removal of repressive marks and deposition of activating marks by a large number of histone and DNA ...

    • ctDNA detected by ddPCR reveals changes in tumour load in metastatic malignant melanoma treated with bevacizumab 

      Forthun, Rakel Brendsdal; Hovland, Randi; Schuster, Cornelia; Puntervoll, Hanne Eknes; Brodal, Hans Petter; Namløs, Heidi Maria; Aasheim, Lars Birger; Meza, Leonardo Zepeda; Gjertsen, Bjørn Tore; Knappskog, Stian; Straume, Oddbjørn (Peer reviewed; Journal article, 2019)
      Bevacizumab is included in an increasing number of clinical trials. To find biomarkers to predict and monitor treatment response, cancer and angiogenesis relevant mutations in tumour and circulating tumour DNA (ctDNA) were ...