Blar i forfatter "Pettersen, Solveig"

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    • Basal‐like breast cancer engages tumor‐supportive macrophages via secreted factors induced by extracellular S100A4 

      Prasmickaite, Lina; Tenstad, Ellen; Pettersen, Solveig; Jabeen, Shakila; Egeland, Eivind Valen; Nord, Silje; Pandya, Abhilash D.; Haugen, Mads Haugland; Kristensen, Vessela N.; Børresen-Dale, Anne-Lise; Engebråten, Olav; Mælandsmo, Gunhild Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-09)
      The tumor microenvironment (TME) may influence both cancer progression and therapeutic response. In breast cancer, particularly in the aggressive triple‐negative/basal‐like subgroup, patient outcome is strongly associated with the tumor's inflammatory profile. Tumor‐associated macrophages (TAMs) are among the most abundant immune cells in the TME, shown to be linked to poor prognosis and therapeutic ...

    • Breast cancer patient-derived explant cultures recapitulate in vivo drug responses 

      Pettersen, Solveig; Øy, Geir Frode; Egeland, Eivind Valen; Juell, Siri; Engebråten, Olav; Mælandsmo, Gunhild Mari; Prasmickaite, Lina (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-22)
      Assessment of drug sensitivity in tumor tissue ex vivo may significantly contribute to functional diagnostics to guide personalized treatment of cancer. Tumor organoid- and explant-cultures have become attractive tools towards this goal, although culturing conditions for breast cancer (BC) tissue have been among the most challenging to develop. Validation of possibilities to detect concordant responses ...

    • Design, synthesis and biological evaluation of 6‐substituted quinolines derived from cabozantinib as c‐Met inhibitors 

      Lien, Vegard Torp; Pettersen, Solveig; Haugen, Mads Haugland; Olberg, Dag Erlend; Mælandsmo, Gunhild Mari; Klaveness, Jo (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-15)
      Based on the cabozantinib scaffold, novel c‐Met inhibitors were rationalized from the limited knowledge of structure‐activity relationships for the quinoline 6‐position. Emphasis was given to modifications capable of engaging in additional polar interactions with the c‐Met active site. In addition, <i>ortho</i>‐fluorinations of the terminal benzene ring were explored. Fifteen new molecules were ...

    • Detection of phenotype-specific therapeutic vulnerabilities in breast cells using a CRISPR loss-of-function screen 

      Barkovskaya, Anna; Goodwin, Craig; Seip, Kotryna; Hilmarsdòttir, Bylgja; Pettersen, Solveig; Stalnecker, Clint; Engebraaten, Olav; Briem, Eirikur; Der, Channing J; Moestue, Siver Andreas; Guðjónsson, Þórarinn; Mælandsmo, Gunhild Mari; Prasmickaite, Lina (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-24)
      Cellular phenotype plasticity between the epithelial and mesenchymal states has been linked to metastasis and heterogeneous responses to cancer therapy, and remains a challenge for the treatment of triple-negative breast cancer (TNBC). Here, we used isogenic human breast epithelial cell lines, D492 and D492M, representing the epithelial and mesenchymal phenotypes, respectively. We employed a CRISPR-Cas9 ...

    • Metabolic reprogramming supports the invasive phenotype in malignant melanoma 

      Bettum, Ingrid Johanne; Gorad, Saurabh Sayajirao; Barkovskaya, Anna; Pettersen, Solveig; Moestue, Siver Andreas; Vasiliauskaite, Kotryna; Tenstad, Ellen; Øyjord, Tove Ragnhild; Risa, Øystein; Nygaard, Vigdis; Mælandsmo, Gunhild; Prasmickaite, Lina (Journal article; Tidsskriftartikkel, 2015)
      Invasiveness is a hallmark of aggressive cancer like malignant melanoma, and factors involved in acquisition or maintenance of an invasive phenotype are attractive targets for therapy. We investigated melanoma phenotype modulation induced by the metastasis-promoting microenvironmental protein S100A4, focusing on the relationship between enhanced cellular motility, dedifferentiation and metabolic ...

    • Nuclear Legumain Activity in Colorectal Cancer 

      Haugen, Mads Haugland; Johansen, Harald Thidemann; Pettersen, Solveig; Solberg, Rigmor; Brix, Klaudia; Flatmark, Kjersti; Mælandsmo, Gunhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The cysteine protease legumain is involved in several biological and pathological processes, and the protease has been found over-expressed and associated with an invasive and metastatic phenotype in a number of solid tumors. Consequently, legumain has been proposed as a prognostic marker for certain cancers, and a potential therapeutic target. Nevertheless, details on how legumain advances ...