Blar i Bergen Open Research Archive på forfatter "Naume, Bjørn"
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Baseline microvessel density predicts response to neoadjuvant bevacizumab treatment of locally advanced breast cancer
Krüger, Kristi; Silwal-Pandit, Laxmi; Wik, Elisabeth; Straume, Oddbjørn; Stefansson, Ingunn Marie; Borgen, Elin; Garred, Øystein; Naume, Bjørn; Engebråten, Olav; Akslen, Lars Andreas (Journal article; Peer reviewed, 2021)A subset of breast cancer patients benefits from preoperative bevacizumab and chemotherapy, but validated predictive biomarkers are lacking. Here, we aimed to evaluate tissue-based angiogenesis markers for potential ... -
An independent poor-prognosis subtype of breast cancer defined by a distinct tumor immune microenvironment
Tekpli, Xavier; Lien, Tonje Gulbrandsen; Røssevold, Andreas Hagen; Nebdal, Daniel J.H.; Borgen, Elin; Ohnstad, Hege Oma; Kyte, Jon A; Vallon-Christersson, Johan; Fongaard, Marie; Due, Eldri Undlien; Svartdal, Lisa Gregusson; Sveli, My Anh Tu; Garred, Øystein; Frigessi Di Rattalma, Arnoldo; Sahlberg, Kristine Kleivi; Sørlie, Therese; Russnes, Hege Elisabeth Giercksky; Naume, Bjørn; Kristensen, Vessela N. (Peer reviewed; Journal article, 2019)How mixtures of immune cells associate with cancer cell phenotype and affect pathogenesis is still unclear. In 15 breast cancer gene expression datasets, we invariably identify three clusters of patients with gradual levels ... -
Low Z-4OHtam concentrations are associated with adverse clinical outcome among early stage premenopausal breast cancer patients treated with adjuvant tamoxifen
Helland, Thomas; Naume, Bjørn; Hustad, Steinar; Bifulco, Ersilia; Kvaløy, Jan Terje; Sætersdal, Anna Barbro; Synnestvedt, Marit; Lende, Tone Hoel; Gilje, Bjørnar; Mjaaland, Ingvil; Weyde, Kjetil; Blix, Egil Støre; Wiedswang, Gro; Borgen, Elin; Hertz, Daniel Louis; Janssen, Emiel; Mellgren, Gunnar; Søiland, Håvard (Journal article; Peer reviewed, 2021)Low steady‐state levels of active tamoxifen metabolites have been associated with inferior treatment outcomes. In this retrospective analysis of 406 estrogen receptor‐positive breast cancer (BC) patients receiving adjuvant ... -
NR2F1 stratifies dormant disseminated tumor cells in breast cancer patients
Borgen, Elin; Rypdal, Maria Christine; Sosa, Maria Soledad; Renolen, Anne; Schlichting, Ellen; Lønning, Per Eystein; Synnestvedt, Marit; Aguirre-Ghiso, Julio; Naume, Bjørn (Peer reviewed; Journal article, 2018-10-16)Background: The presence of disseminated tumor cells (DTCs) in bone marrow (BM) is an independent prognostic factor in early breast cancer but does not uniformly predict outcome. Tumor cells can persist in a quiescent state ... -
Persistence of disseminated tumor cells after neoadjuvant treatment for locally advanced breast cancer predicts poor survival
Mathiesen, Randi Margit Ruud; Borgen, Elin; Renolen, Anne; Løkkevik, Erik; Nesland, Jahn M.; Anker, Gun; Østenstad, Bjørn; Lundgren, Steinar; Risberg, Terje; Mjaaland, Ingvil; Kvalheim, Gunnar; Lønning, Per Eystein; Naume, Bjørn (Peer reviewed; Journal article, 2012-08-14)Introduction: Presence of disseminated tumor cells (DTCs) in bone marrow (BM) and circulating tumor cells (CTC) in peripheral blood (PB) predicts reduced survival in early breast cancer. The aim of this study was to determine ... -
Serum concentrations of active tamoxifen metabolites predict long-term survival in adjuvantly treated breast cancer patients
Helland, Thomas; Henne, Nina; Bifulco, Ersilia; Naume, Bjørn; Borgen, Elin; Kristensen, Vessela N.; Kvaløy, Jan Terje; Lash, Timothy L; Grenaker, Grethe Irene; van Schaik, RHN; Janssen, Emiel; Hustad, Simon Steinar; Lien, Ernst Asbjørn; Mellgren, Gunnar; Søiland, Håvard (Peer reviewed; Journal article, 2017-11-28)Background: Controversies exist as to whether the genetic polymorphisms of the enzymes responsible for the metabolism of tamoxifen can predict breast cancer outcome in patients using adjuvant tamoxifen. Direct measurement ...