• An 18-Gene signature for vascular invasion is associated with aggressive features and reduced survival in breast cancer 

      Mannelqvist, Monica; Wik, Elisabeth; Stefansson, Ingunn; Akslen, Lars A. (Peer reviewed; Journal article, 2014-06-06)
      Aims: Vascular invasion by tumor cells is known to be important for cancer progression. By microarray and qPCR analyses, we earlier identified an 18-gene signature associated with vascular involvement in endometrial cancer. ...
    • 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 (Peer reviewed; Journal article, 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 ...
    • Breast cancer stromal elastosis is associated with mammography screening detection, low Ki67 expression and favourable prognosis in a population-based study 

      Chen, Ying; Klingen, Tor Audun; Wik, Elisabeth; Aas, Hans; Vigeland, Einar; Liestøl, Knut; Garred, Øystein; Mæhlen, Jan; Akslen, Lars A.; Lømo, Jon (Peer reviewed; Journal article, 2014-12-19)
      Background: Mammography screen-detected breast cancers have a better prognosis than predicted from established prognostic markers. A search for additional features that are characteristic for these tumours and their prognosis ...
    • 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) ...
    • Characterization of FGD5 expression in primary breast cancers and lymph node metastases 

      Valla, Marit; Mjønes, Patricia; Engstrøm, Monica J; Ytterhus, Borgny; Bordin, Diana Lilian; van Loon, Barbara; Akslen, Lars A.; Vatten, Lars Johan; Opdahl, Signe; Bofin, Anna M. (Peer reviewed; Journal article, 2018)
      Faciogenital dysplasia 5 (FGD5) amplification drives tumor cell proliferation, and is present in 9.5% of breast cancers. We describe FGD5 expression, assess associations between FGD5 amplification and FGD5 expression, and ...
    • Clinical Efficacy and Safety of Bevacizumab Monotherapy in Patients with Metastatic Melanoma: Predictive Importance of Induced Early Hypertension 

      Schuster, Cornelia; Eikesdal, Hans Petter; Puntervoll, Hanne; Geisler, Jürgen; Geisler, Stephanie; Molven, Anders; Akslen, Lars A. (Peer reviewed; Journal article, 2012-06-15)
      Background: VEGF driven angiogenesis plays a key role in cancer progression. We determined the clinical efficacy of bevacizumab monotherapy in patients with metastatic melanoma. Methods and Findings: Thirty-five patients ...
    • Concomitant inactivation of the p53- and pRB- functional pathways predicts resistance to DNA damaging drugs in breast cancer in vivo 

      Knappskog, Stian; Berge, Elisabet Ognedal; Chrisanthar, Ranjan; Geisler, Stephanie; Staalesen, Vidar; Leirvaag, Beryl; Yndestad, Synnøve; de Faveri, Elise Norheim; Karlsen, Bård Ove; Wedge, David C.; Akslen, Lars A.; Lilleng, Peer Kåre; Løkkevik, Erik; Lundgren, Steinar; Østenstad, Bjørn; Risberg, Terje; Mjaaland, Ingvil; Aas, Turid; Lønning, Per Eystein (Peer reviewed; Journal article, 2015-10)
      Chemoresistance is the main obstacle to cancer cure. Contrasting studies focusing on single gene mutations, we hypothesize chemoresistance to be due to inactivation of key pathways affecting cellular mechanisms such as ...
    • The effect on melanoma risk of genes previously associated with telomere length 

      Iles, Mark M.; Bishop, D. Timothy; Taylor, John C.; Hayward, Nicholas K.; Brossard, Myriam; Cust, Anne E.; Dunning, Alison M.; Lee, Jeffrey E.; Moses, Eric K.; Akslen, Lars A.; Andresen, Per Arne; Avril, Marie-Francoise; Azizi, Esther; Scarra, Giovanna Bianchi; Brown, Kevin M.; Debniak, Tadeusz; Elder, David E.; Friedman, Eitan; Ghiorzo, Paola; Gillanders, Elizabeth M.; Goldstein, Alisa M.; Gruis, Nelleke A.; Hansson, Johan; Harland, Mark; Helsing, Per; Hočevar, Marko; Höiom, Veronica; Ingvar, Christian; Kanetsky, Peter A.; Landi, Maria Teresa; Lang, Julie L.; Lathrop, G. Mark; Lubinski, Jan; Mackie, Rona M.; Martin, Nicholas G.; Molven, Anders; Montgomery, Grant W.; Novakovic, Srdian; Olsson, Håkan; Puig, Susana; Puig-Butille, Joan Anton; Radford-Smith, Graham L.; Randerson-Moor, Juliette; Study Group, SDH; van der Stoep, Nienke; van Doorn, Remco; Whiteman, David C.; MacGregor, Stuart; Pooley, Karen A.; Ward, Sarah V.; Mann, Graham J.; Amos, Christopher I.; Pharoah, Paul D.P.; Demenais, Florence; Law, Matthew H.; Bishop, Julia A. Newton; Barrett, Jennifer H. (Peer reviewed; Journal article, 2014)
      Telomere length has been associated with risk of many cancers, but results are inconsistent. Seven single nucleotide polymorphisms (SNPs) previously associated with mean leukocyte telomere length were either genotyped or ...
    • Endothelial microvascular networks affect gene-expression profiles and osteogenic potential of tissue-engineered constructs 

      Pedersen, Torbjørn Østvik; Blois, Anna L; Xing, Zhe; Xue, Ying; Sun, Yang; Finne-Wistrand, Anna; Akslen, Lars A.; Lorens, James B.; Leknes, Knut N.; Fristad, Inge; Mustafa, Kamal Babikeir Eln (Peer reviewed; Journal article, 2013-05-17)
      Introduction: A major determinant of the potential size of cell/scaffold constructs in tissue engineering is vascularization. The aims of this study were twofold: first to determine the in vitro angiogenic and osteogenic ...
    • 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 (Peer reviewed; Journal article, 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 lines, ...
    • Evaluation of Ki67 expression across distinct categories of breast cancer specimens: A Population-based study of matched surgical specimens, core needle biopsies and tissue microarrays 

      Knutsvik, Gøril; Stefansson, Ingunn; Aziz, Sura Mohammed; Arnes, Jarle; Eide, Johan; Collett, Karin; Akslen, Lars A. (Peer reviewed; Journal article, 2014-11-06)
      Introduction: Tumor cell proliferation in breast cancer is strongly prognostic and may also predict response to chemotherapy. However, there is no consensus on counting areas or cut-off values for patient stratification. ...
    • Expression of Heat Shock Protein 27 in Melanoma Metastases Is Associated with Overall Response to Bevacizumab Monotherapy: Analyses of Predictive Markers in a Clinical Phase II Study 

      Schuster, Cornelia; Akslen, Lars A.; Straume, Oddbjørn (Journal article, 2016-05-11)
      The aim of this study was to identify potential predictive biomarkers in 35 patients with metastatic melanoma treated with anti-angiogenic bevacizumab monotherapy in a clinical phase II study. The immunohistochemical ...
    • Expression of thyroid transcription factor-1 is associated with a basal-like phenotype in breast carcinomas 

      Klingen, Tor Audun; Chen, Ying; Suhrke, Pål; Stefansson, Ingunn; Gundersen, Marian D.; Akslen, Lars A. (Peer reviewed; Journal article, 2013-05-15)
      Background: The differential diagnosis between primary and secondary breast cancers might be difficult, especially in poorly differentiated tumors. Thyroid Transcription Factor-1 (TTF-1) has been regarded as a reliable ...
    • FGD5 amplification in breast cancer patients is associated with tumor proliferation and a poorer prognosis 

      Valla, Marit; Engstrøm, Monica J; Ytterhus, Borgny; Hansen, Åse Kristin Skain; Akslen, Lars A.; Vatten, Lars Johan; Opdahl, Signe; Bofin, Anna M. (Peer reviewed; Journal article, 2017-04)
      Purpose: Proliferation is a hallmark of cancer. Using a combined genomic approach, FGD5 amplification has been identified as a driver of proliferation in Luminal breast cancer. We aimed to describe FGD5 copy number change ...
    • Fine mapping of genetic susceptibility loci for melanoma reveals a mixture of single variant and multiple variant regions 

      Barrett, Jennifer H.; Taylor, John C.; Bright, C; Harland, Mark; Dunning, Alison M; Akslen, Lars A.; Andresen, Per Arne; Avril, Marie-Francoise; Azizi, Esther; Scarra, Giovanna Bianchi; Brossard, Myriam; Brown, Kevin M.; Debniak, Tadeusz; Elder, David E.; Friedman, Eitan; Ghiorzo, Paola; Gillanders, Elizabeth M.; Gruis, Nelleke A.; Hansson, Johan; Helsing, Per; Hočevar, Marko; Höiom, Veronica; Ingvar, Christian; Landi, Maria Teresa; Lang, Julie L.; Lathrop, G. Mark; Lubinski, Jan; Mackie, Rona M.; Molven, Anders; Novakovic, Srdjan; Olsson, Håkan; Puig, Susana; Puig-Butille, Joan Anton; van der Stoep, Nienke; van Doorn, Remco; van Workum, Wilberg; Goldstein, Alisa M.; Kanetsky, Peter A.; Pharoah, Paul D.P.; Demenais, Florence; Hayward, Nicholas K.; Bishop, Julia A. Newton; Bishop, D. Timothy; Iles, Mark M. (Peer reviewed; Journal article, 2015-08-14)
      At least 17 genomic regions are established as harboring melanoma susceptibility variants, in most instances with genome-wide levels of significance and replication in independent samples. Based on genome-wide single ...
    • FOXC2 expression and epithelial–mesenchymal phenotypes are associated with castration resistance, metastasis and survival in prostate cancer 

      Børretzen, Astrid; Gravdal, Karsten; Haukaas, Svein Andreas; Beisland, Christian; Akslen, Lars A.; Halvorsen, Ole Johan (Peer reviewed; Journal article, 2019)
      Epithelial–mesenchymal transition (EMT) is important for tumour cell invasion and metastasis and is a feature of aggressive carcinomas. EMT is characterised by reduced E‐cadherin and increased N‐cadherin expression ...
    • 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 (Peer reviewed; Journal article, 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 ...
    • 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 (Peer reviewed; Journal article, 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 clinico-pathological ...
    • High mortality due to cutaneous melanoma in norway: A study of prognostic factors in a nationwide cancer registry 

      Robsahm, Trude Eid; Helsing, Per; Nilssen, Yngvar; Vos, Linda; Rizvi, Syed Mohammad Husain; Akslen, Lars A.; Veierød, Marit Bragelien (Peer reviewed; Journal article, 2018-05-09)
      Purpose: The purpose of this study was to examine why Norway has the highest rate of mortality due to cutaneous melanoma (CM) in Europe. The Norwegian Malignant Melanoma Registry (NMMR) enables the study of clinical and ...
    • Hormone receptor loss in endometrial carcinoma curettage predicts lymph node metastasis and poor outcome in prospective multicentre trial 

      Trovik, Jone; Wik, Elisabeth; Werner, Henrica Maria Johanna; Krakstad, Camilla; Helland, Harald; Vandenput, Ingrid; Njølstad, Tormund Salvesen; Stefansson, Ingunn; Marcickiewicz, Janusz; Tingulstad, Solveig; Staff, Anne Cathrine; Amant, Frédéric; Akslen, Lars A.; Salvesen, Helga Birgitte (Peer reviewed; Journal article, 2013-11)
      Background: Preoperative histologic examination of tumour tissue is essential when deciding if endometrial cancer surgery should include lymph node sampling. We wanted to investigate if biomarkers could improve prediction ...