Now showing items 1-19 of 19

    • Amplification of the 20q Chromosomal Arm Occurs Early in Tumorigenic Transformation and May Initiate Cancer 

      Tabach, Yuval; Kogan-Sakin, Ira; Buganim, Yosef; Solomon, Hilla; Goldfinger, Naomi; Hovland, Randi; Ke, Xi-Song; Øyan, Anne Margrete; Kalland, Karl-Henning; Rotter, Varda; Domany, Eytan (Public Library of Science, 2011-01-31)
      Duplication of chromosomal arm 20q occurs in prostate, cervical, colon, gastric, bladder, melanoma, pancreas and breast cancer, suggesting that 20q amplification may play a causal role in tumorigenesis. According to an ...
      Peer reviewedJournal article
    • Androgen receptor as potential therapeutic target in metastatic endometrial cancer 

      Tangen, Ingvild Løberg; Onyango, Therese Bredholt; Kopperud, Reidun Kristin; Berg, Anna; Halle, Mari Kyllesø; Øyan, Anne Margrete; Werner, Henrica Maria Johanna; Trovik, Jone; Kalland, Karl-Henning; Salvesen, Helga Birgitte; Krakstad, Camilla (Impact Journals, 2016-06-30)
      Purpose: The expression and involvement of estrogen (ER) and progesterone receptor (PR) is extensively studied in endometrial cancer. Androgen receptor (AR) is a hormone receptor less studied in female cancers, and we here ...
      Journal article
    • Aneuploidy related transcriptional changes in endometrial cancer link low expression of chromosome 15q genes to poor survival 

      Mauland, Karen Klepsland; Wik, Elisabeth; Høivik, Erling Andre; Kusonmano, Kanthida; Halle, Mari Kyllesø; Berg, Anna; Haugland, Hans Kristian; Øyan, Anne Margrete; Kalland, Karl-Henning; Stefansson, Ingunn Marie; Akslen, Lars A.; Krakstad, Camilla; Trovik, Jone; Werner, Henrica Maria Johanna; Salvesen, Helga Birgitte (Impact Journals, 2017)
      Aneuploidy is a widely studied prognostic marker in endometrial cancer (EC), however, not implemented in clinical decision-making. It lacks validation in large prospective patient cohorts adjusted for currently standard ...
      Journal article
    • ATAD2 overexpression links to enrichment of B-MYBtranslational signatures and development of aggressive endometrial carcinoma 

      Krakstad, Camilla; Tangen, Ingvild Løberg; Høivik, Erling Andre; Halle, Mari Kyllesø; Berg, Anna; Werner, Henrica Maria Johanna; Ræder, Maria B.; Kusonmano, Kanthida; Zou, June; Øyan, Anne Margrete; Stefansson, Ingunn; Trovik, Jone; Kalland, Karl-Henning; Chen, Hong-Wu; Salvesen, Helga Birgitte (Impact Journals, 2015)
      We have explored the potential for clinical implementation of ATAD2 as a biomarker for aggressive endometrial cancer by investigating to what extent immunohistochemical (IHC) staining for ATAD2 is feasible, reflects clinical ...
      Journal article
    • Context dependent regulatory patterns of the androgen receptor and androgen receptor target genes 

      Olsen, Jan R; Azeem, Waqas; Hellem, Margrete R; Marvyin, Kristo; Hua, Yaping; Qu, Yi; Li, Lisha; Lin, Biaoyang; Ke, XI- S; Øyan, Anne Margrete; Kalland, Karl-Henning (BioMed Central, 2016-07-04)
      Background Expression of the androgen receptor (AR) is associated with androgen-dependent proliferation arrest and terminal differentiation of normal prostate epithelial cells. Additionally, activation of the AR is required ...
      Journal article
    • Epithelial to Mesenchymal Transition of a Primary Prostate Cell Line with Switches of Cell Adhesion Modules but without Malignant Transformation 

      Ke, Xi-Song; Qu, Yi; Goldfinger, Naomi; Rostad, Kari; Hovland, Randi; Akslen, Lars A.; Rotter, Varda; Øyan, Anne Margrete; Kalland, Karl-Henning (Public Library of Science, 2008-10-13)
      Background: Epithelial to mesenchymal transition (EMT) has been connected with cancer progression in vivo and the generation of more aggressive cancer cell lines in vitro. EMT has been induced in prostate cancer cell ...
      Peer reviewedJournal article
    • Expression of circadian clock genes and proteins in urothelial cancer is related to cancer-associated genes 

      Litlekalsøy, Jorunn; Rostad, Kari; Kalland, Karl-Henning; Høstmark, Jens G.; Laerum, Ole D. (2016-07-27)
      Background: The purpose of this study was to evaluate invasive and metastatic potential of urothelial cancer by investigating differential expression of various clock genes/proteins participating in the 24 h circadian ...
      Journal article
    • Gene expression in tumor cells and stroma in dsRed 4T1 tumors in eGFP-expressing mice with and without enhanced oxygenation 

      Moen, Ingrid; Jevne, Alison Charlotte; Wang, Jian; Kalland, Karl-Henning; Chekenya, Martha; Akslen, Lars A.; Sleire, Linda; Enger, Per Øyvind; Reed, Rolf K.; Øyan, Anne Margrete; Stuhr, Linda Elin Birkhaug (BioMed Central Ltd., 2012-01-17)
      Background The tumor microenvironment is pivotal in tumor progression. Thus, we aimed to develop a mammary tumor model to elucidate molecular characteristics in the stroma versus the tumor cell compartment by global gene ...
      Peer reviewedJournal article
    • 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 (BioMed Central, 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 ...
      Journal article
    • Global profiling of histone and DNA methylation reveals epigenetic-based regulation of gene expression during epithelial to mesenchymal transition in prostate cells 

      Ke, Xi-Song; Qu, Yi; Cheng, Yang; Li, Wen-Cheng; Rotter, Varda; Øyan, Anne Margrete; Kalland, Karl-Henning (BioMed Central, 2010-11-25)
      Background: Previously we reported extensive gene expression reprogramming during epithelial to mesenchymal transition (EMT) of primary prostate cells. Here we investigated the hypothesis that specific histone and DNA ...
      Journal article
    • HER2 expression patterns in paired primary and metastatic endometrial cancer lesions 

      Halle, Mari Kyllesø; Tangen, Ingvild Løberg; Berg, Hege Fredriksen; Hoivik, Erling A; Mauland, Karen Klepsland; Kusonmano, Kanthida; Berg, Anna; Hurtado, Antoni; Kalland, Karl-Henning; Øyan, Anne Margrete; Stefansson, Ingunn; Vintermyr, Olav Karsten; Werner, Henrica Maria Johanna; Haldorsen, Ingfrid S.; Trovik, Jone; Salvesen, Helga Birgitte; Krakstad, Camilla (Nature Publishing Group, 2017-11-23)
      Background: Despite successful implementation of drugs targeting the human epidermal growth factor receptor 2 (HER2) receptor in breast and gastric cancers, the potential of HER2 as a therapeutic target in other cancers ...
      Journal article
    • High BMI is significantly associated with positive progesterone receptor status and clinico-pathological markers for non-aggressive disease in endometrial cancer 

      Mauland, Karen Klepsland; Trovik, Jone; Wik, Elisabeth; Ræder, Maria B.; Njølstad, Tormund Salvesen; Stefansson, Ingunn Marie; Øyan, Anne Margrete; Kalland, Karl-Henning; Bjørge, Tone; Akslen, Lars A.; Salvesen, Helga Birgitte (Nature Publishing Group, 2011)
      Background: Endometrial cancer incidence is increasing in industrialised countries. High body mass index (BMI, kg m−2) is associated with higher risk for disease. We wanted to investigate if BMI is related to ...
      Journal article
    • High-Throughput Mutation Profiling of Primary and Metastatic Endometrial Cancers Identifies KRAS, FGFR2 and PIK3CA to Be Frequently Mutated 

      Krakstad, Camilla; Birkeland, Even; Seidel, Danila; Kusonmano, Kanthida; Petersen, Kjell; Mjøs, Siv; Høivik, Erling Andre; Wik, Elisabeth; Halle, Mari Kyllesø; Øyan, Anne Margrete; Kalland, Karl-Henning; Werner, Henrica Maria Johanna; Trovik, Jone; Salvesen, Helga Birgitte (Public Library of Science, 2012-12-27)
      Background: Despite being the most common pelvic gynecologic malignancy in industrialized countries, no targeted therapies are available for patients with metastatic endometrial carcinoma. In order to improve treatment, ...
      Peer reviewedJournal article
    • Hyperoxic Treatment Induces Mesenchymal-to-Epithelial Transition in a Rat Adenocarcinoma Model 

      Moen, Ingrid; Øyan, Anne Margrete; Kalland, Karl-Henning; Tronstad, Karl Johan; Akslen, Lars A.; Chekenya, Martha; Sakariassen, Per Øystein; Reed, Rolf K.; Stuhr, Linda Elin Birkhaug (Public Library of Science, 2009-07-28)
      Tumor hypoxia is relevant for tumor growth, metabolism and epithelial-to-mesenchymal transition (EMT). We report that hyperbaric oxygen (HBO) treatment induced mesenchymal-to-epithelial transition (MET) in a dimetyl-a-b ...
      Journal articlePeer reviewed
    • Integrated Genomic Analysis of the 8q24 Amplification in Endometrial Cancers Identifies ATAD2 as Essential to MYC-Dependent Cancers 

      Ræder, Maria B.; Birkeland, Even; Trovik, Jone; Krakstad, Camilla; Shehata, Shyemaa; Schumacher, Steven; Zack, Travis I.; Krohn, Antje; Werner, Henrica Maria Johanna; Moody, Susan E.; Wik, Elisabeth; Stefansson, Ingunn; Holst, Frederik; Øyan, Anne Margrete; Tamayo, Pablo; Mesirov, Jill P.; Kalland, Karl-Henning; Akslen, Lars A.; Simon, Ronald; Beroukhim, Rameen; Salvesen, Helga Birgitte (Public Library of Science, 2013-02-05)
      Chromosome 8q24 is the most commonly amplified region across multiple cancer types, and the typical length of the amplification suggests that it may target additional genes to MYC. To explore the roles of the genes most ...
      Peer reviewedJournal article
    • KRAS gene amplification and overexpression but not mutation associates with aggressive and metastatic endometrial cancer 

      Birkeland, Even; Wik, Elisabeth; Mjøs, Siv; Høivik, Erling Andre; Trovik, Jone; Werner, Henrica Maria Johanna; Kusonmano, Kanthida; Petersen, Kjell; Ræder, Maria B.; Holst, Frederik; Øyan, Anne Margrete; Kalland, Karl-Henning; Akslen, Lars A.; Simon, Ronald; Krakstad, Camilla; Salvesen, Helga Birgitte (Cancer Research UK and Nature Publishing Group, 2012)
      BACKGROUND: Three quarter of endometrial carcinomas are treated at early stage. Still, 15 to 20% of these patients experience recurrence, with little effect from systemic therapies. Homo sapiens v-Ki-ras2 Kirsten rat ...
      Peer reviewedJournal article
    • Lipocalin 2 expression is associated with aggressive features of endometrial cancer 

      Mannelqvist, Monica; Stefansson, Ingunn; Wik, Elisabeth; Kusonmano, Kanthida; Ræder, Maria B.; Øyan, Anne Margrete; Kalland, Karl-Henning; Moses, Marsha A.; Salvesen, Helga Birgitte; Akslen, Lars A. (BioMed Central, 2012-05-06)
      Background: Increased expression of lipocalin 2 (LCN2) has been observed in several cancers. The aim of the present study was to investigate LCN2 in endometrial cancer in relation to clinico-pathologic phenotype, angiogenesis, ...
      Journal article
    • Switch in FOXA1 status associates with endometrial cancer progression 

      Tangen, Ingvild Løberg; Krakstad, Camilla; Halle, Mari Kyllesø; Werner, Henrica Maria Johanna; Øyan, Anne Margrete; Kusonmano, Kanthida; Petersen, Kjell; Kalland, Karl-Henning; Akslen, Lars A.; Trovik, Jone; Rodriguez, Antoni Hurtado; Salvesen, Helga Birgitte (Public Library of Science, 2014-05-21)
      Background: The transcription factor Forkhead box A1 (FOXA1) is suggested to be important in hormone dependent cancers, although with little data for endometrial cancer. We investigated expression levels of FOXA1 in primary ...
      Journal article
    • 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 (BioMed Central, 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 ...
      Journal article