Blar i Bergen Open Research Archive på forfatter "Espedal, Heidi"
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Bevacizumab treatment induces metabolic adaptation toward anaerobic metabolism in glioblastomas
Fack, Fred; Espedal, Heidi; Keunen, Olivier; Golebiewska, Anna; Obad, Nina; Harter, Patrick N.; Mittelbronn, Michel; Bähr, Oliver; Weyerbrock, Astrid; Stuhr, Linda Elin Birkhaug; Miletic, Hrvoje; Sakariassen, Per Øystein; Stieber, Daniel; Rygh, Cecilie Brekke; Lund-Johansen, Morten; Zheng, Liang; Gottlieb, Eyal; Niclou, Simone P.; Bjerkvig, Rolf (Peer reviewed; Journal article, 2015-01)Anti-angiogenic therapy in glioblastoma (GBM) has unfortunately not led to the anticipated improvement in patient prognosis. We here describe how human GBM adapts to bevacizumab treatment at the metabolic level. By performing ... -
Comparison of bone regenerative capacity of donor-matched human adipose–derived and bone marrow mesenchymal stem cells
Mohamed Ahmed, Samih; Yassin, Mohammed Ahmed; Elsebahy, Ahmad Rashad Saad Mohamed; Espedal, Heidi; Idris, Shaza Bushra M.; Finne-Wistrand, Anna; Vindenes, Hallvard; Mustafa, Kamal Babikeir Eln; Fristad, Inge (Journal article; Peer reviewed, 2020-11)Adipose-derived stem cells (ASC) have been used as an alternative to bone marrow mesenchymal stem cells (BMSC) for bone tissue engineering. However, the efficacy of ASC in bone regeneration in comparison with BMSC remains ... -
Current landscape and future perspectives in preclinical MR and PET imaging of brain metastasis
Aasen, Synnøve Nymark; Espedal, Heidi; Keunen, Olivier; Adamsen, Tom Christian Holm; Bjerkvig, Rolf; Thorsen, Frits (Journal article; Peer reviewed, 2021)Brain metastasis (BM) is a major cause of cancer patient morbidity. Clinical magnetic resonance imaging (MRI) and positron emission tomography (PET) represent important resources to assess tumor progression and treatment ... -
Feasibility and utility of MRI and dynamic 18F-FDG-PET in an orthotopic organoid-based patient-derived mouse model of endometrial cancer
Espedal, Heidi; Berg, Hege Fredriksen; Fonnes, Tina; Fasmer, Kristine Eldevik; Krakstad, Camilla; Haldorsen, Ingfrid S. (Journal article; Peer reviewed, 2021)Background: Pelvic magnetic resonance imaging (MRI) and whole-body positron emission tomography-computed tomography (PET-CT) play an important role at primary diagnostic work-up and in detecting recurrent disease in ... -
Imaging of preclinical endometrial cancer models for monitoring tumor progression and response to targeted therapy
Espedal, Heidi; Fonnes, Tina; Fasmer, Kristine Eldevik; Krakstad, Camilla; Haldorsen, Ingfrid S. (Peer reviewed; Journal article, 2019-11-27)Endometrial cancer is the most common gynecologic malignancy in industrialized countries. Most patients are cured by surgery; however, about 15% of the patients develop recurrence with limited treatment options. Patient-derived ... -
Lack of functional normalisation of tumour vessels following anti-angiogenic therapy in glioblastoma
Obad, Nina; Espedal, Heidi; Jirík, Radovan; Sakariassen, Per Øystein; Rygh, Cecilie Brekke; Lund-Johansen, Morten; Taxt, Torfinn; Niclou, Simone Pierrette; Bjerkvig, Rolf; Keunen, Olivier (Peer reviewed; Journal article, 2017)Neo-angiogenesis represents an important factor for the delivery of oxygen and nutrients to a growing tumour, and is considered to be one of the main pathodiagnostic features of glioblastomas (GBM). Anti-angiogenic therapy ... -
Lactate dehydrogenases promote glioblastoma growth and invasion via a metabolic symbiosis
Guyon, Joris; Fernandez-Moncada, Ignacio; Larrieu, Claire M; Bouchez, Cyrielle L; Pagano Zottola, Antonio C; Galvis, Johanna; Chouleur, Tiffanie; Burban, Audrey; Joseph, Kevin; Ravi, Vidhya M; Espedal, Heidi; Røsland, Gro Vatne; Daher, Boutaina; Barre, Aurélien; Dartigues, Benjamin; Karkar, Slim; Rudewicz, Justine; Romero-Garmendia, Irati; Klink, Barbara; Grützmann, Konrad; Derieppe, Marie-Alix; Molinié, Thibaut; Obad, Nina; Léon, Céline; Seano, Giorgio; Miletic, Hrvoje; Heiland, Dieter Henrik; Marsicano, Giovanni; Nikolski, Macha; Bjerkvig, Rolf; Bikfalvi, Andreas; Daubon, Thomas (Journal article; Peer reviewed, 2022)Lactate is a central metabolite in brain physiology but also contributes to tumor development. Glioblastoma (GB) is the most common and malignant primary brain tumor in adults, recognized by angiogenic and invasive growth, ... -
Near-Infrared Fluorescent Imaging for Monitoring of Treatment Response in Endometrial Carcinoma Patient-Derived Xenograft Models.
Fonnes, Tina; Strand, Elin; Fasmer, Kristine Eldevik; Berg, Hege Fredriksen; Espedal, Heidi; Sortland, Kristina; Stefansson, Ingunn; Bjørge, Line; Haldorsen, Ingfrid S.; Krakstad, Camilla; Mc Cormack, Emmet (Journal article; Peer reviewed, 2020)Imaging of clinically relevant preclinical animal models is critical to the development of personalized therapeutic strategies for endometrial carcinoma. Although orthotopic patient-derived xenografts (PDXs) reflecting ... -
Novel clearance of muscle proteins by muscle cells
Muslimovic, Aida; Friden, Vincent; Starnberg, Karin; Tenstad, Olav; Espedal, Heidi; Vukusic, Kristina; Nyström, Susanne; Wesén, Emelie; Esbjörner, Elin K; Granholm, Kristoffer; Lindahl, Bertil; Hammarsten, Ola (Journal article; Peer reviewed, 2020)Blood levels of cardiac troponins (cTn) and myoglobin are analysed when myocardial infarction (MI) is suspected. Here we describe a novel clearance mechanism for muscle proteins by muscle cells. The complete plasma clearance ... -
Patient-derived organoids reflect the genetic profile of endometrial tumors and predict patient prognosis
Berg, Hege Fredriksen; Hjelmeland, Marta Espevold; Lien, Hilde Eide; Espedal, Heidi; Fonnes, Tina; Srivastava, Aashish; Stokowy, Tomasz; Strand, Elin; Bozickovic, Olivera; Stefansson, Ingunn Marie; Bjørge, Line; Trovik, Jone; Haldorsen, Ingfrid S.; Høivik, Erling Andre; Krakstad, Camilla (Journal article; Peer reviewed, 2021)Background: A major hurdle in translational endometrial cancer (EC) research is the lack of robust preclinical models that capture both inter- and intra-tumor heterogeneity. This has hampered the development of new treatment ... -
Pretreatment of glioblastoma with bortezomib potentiates natural killer cell cytotoxicity through TRAIL/DR5 mediated apoptosis and prolongs animal survival
Gras Navarro, Andrea; Espedal, Heidi; Vareecal Joseph, Justin; Moncho, Laura Trachsel; Bahador, Marzieh; Gjertsen, Bjørn Tore; Kristoffersen, Einar Klæboe; Simonsen, Anne; Miletic, Hrvoje; Enger, Per Øyvind; Rahman, Mohummad Aminur; Enger, Martha Chekenya (Peer reviewed; Journal article, 2019-07-17)Background: Natural killer (NK) cells are potential effectors in anti-cancer immunotherapy; however only a subset potently kills cancer cells. Here, we examined whether pretreatment of glioblastoma (GBM) with the proteasome ... -
Repurposing 18F-FMISO as a PET tracer for translational imaging of nitroreductase-based gene directed enzyme prodrug therapy
Ruiz de Garibay, Gorka; García de Jalón, Elvira; Stigen, Endre; Lund, Kjetil B.; Popa, Mihaela-Lucia; Davidson, Ben; Mayoral Safont, Mireia; Rygh, Cecilie Brekke; Espedal, Heidi; Barrett, Torill; Haug, Bengt Erik; McCormack, Emmet (Journal article; Peer reviewed, 2021)Nitroreductases (NTR) are a family of bacterial enzymes used in gene directed enzyme prodrug therapy (GDEPT) that selectively activate prodrugs containing aromatic nitro groups to exert cytotoxic effects following gene ... -
Trifluoperazine prolongs the survival of experimental brain metastases by STAT3-dependent lysosome membrane permeabilization
Zhang, Xin; Ding, Kaikai; Ji, Jianxiong; Parajuli, Himalaya; Aasen, Synnøve Nymark; Espedal, Heidi; Huang, Bin; Chen, Anjing; Wang, Jian; Li, Xingang; Thorsen, Frits (Journal article; Peer reviewed, 2020)Brain metastasis is a major cause of mortality in melanoma patients. The blood-brain barrier (BBB) prevents most anti-tumor compounds from entering the brain, which significantly limits their use in the treatment of brain ...