Blar i forfatter "Bremnes, Roy M."

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    • A gender specific improved survival related to stromal miR-143 and miR-145 expression in non-small cell lung cancer 

      Skjefstad, Kaja Konstanse; Johannessen, Charles; Grindstad, Thea K.W.; Kilvær, Thomas Karsten; Paulsen, Erna Elise; Pedersen, Mona Irene; Dønnem, Tom; Andersen, Sigve; Bremnes, Roy M.; Richardsen, Elin; Al-Saad, Samer; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-04)
      Micro RNAs (miRNA) are small non-coding RNAs that post-transcriptionally regulate gene expression. Dysregulation of miRNA cluster 143/145 has been reported in several malignancies, but their role in non-small cell lung cancer (NSCLC) remains elusive. This study investigates the prognostic impact of miR-143 and miR-145 in primary tumors and metastatic lymph nodes in NSCLC tissue. Tissue from 553 ...

    • High expression of CD20+ lymphocytes in soft tissue sarcomas is a positive prognostic indicator 

      Sørbye, Sveinung Wergeland; Kilvær, Thomas Karsten; Valkov, Andrey Yurjevich; Dønnem, Tom; Smeland, Eivind; Al-Shibli, Khalid Ibrahim; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel, 2012)
      The immune status is important in cancer patients. Tissue microarrays from 249 patients with soft tissue sarcomas were constructed. Immunohistochemistry was used to evaluate the CD3+, CD4+, CD8+, CD20+ and CD45+ lymphocytes in tumors. High density of CD20+ lymphocytes is an independent positive prognostic indicator for these patients.

    • High expression of microRNA‑126 relates to favorable prognosis for colon cancer patients 

      Selven, Hallgeir; Rasmussen Busund, Lill-Tove; Bremnes, Roy M.; Andersen, Sigve; Kilvær, Thomas Karsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-05)
      miR-126 has been identified both as a tumor suppressor and an oncogene in different types of cancer. The aim of this study was to investigate the prognostic impact of miR-126-expression in colon cancer patients. Tumor tissue from 452 patients operated for stage I–III colon cancer was retrospectively collected and tissue microarrays were constructed. miR-126 expression was evaluated by in situ ...

    • High expression of miR-17-5p in tumor epithelium is a predictor for poor prognosis for prostate cancer patients 

      Støen, Maria Jenvin; Andersen, Sigve; Rakaee, Mehrdad; Pedersen, Mona Irene; Ingebriktsen, Lise Martine; Bremnes, Roy M.; Dønnem, Tom; Lombardi, Ana Paola; Kilvær, Thomas Karsten; Rasmussen Busund, Lill-Tove; Richardsen, Elin (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-05)
      MicroRNAs (miRs) are small non-coding RNA molecules, which are involved in the development of various malignancies, including prostate cancer (PCa). miR-17-5p is considered the most prominent member of the miR-17-92 cluster, with an essential regulatory function of fundamental cellular processes. In many malignancies, up-regulation of miR-17-5p is associated with worse outcome. In PCa, miR-17-5p has ...

    • High expression of PDGFR-β in prostate cancer stroma is independently associated with clinical and biochemical prostate cancer recurrence 

      Nordby, Yngve; Richardsen, Elin; Rakaee, Mehrdad; Ness, Nora; Dønnem, Tom; Patel, Hitendra R.H.; Busund, Lill-Tove; Bremnes, Roy M.; Andersen, Sigve (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-02-24)
      Due to a lack of sufficient diagnostic tools to predict aggressive disease, there is a significant overtreatment of patients with prostate cancer. Platelet derived growth factors (PDGFs) and their receptors (PDGFRs) are key regulators of mesenchymal cells in the tumor microenvironment, and has been associated with unfavorable outcome in several other cancers. Herein, we aimed to investigate the ...

    • High miR-205 expression in normal epithelium is associated with biochemical failure - An argument for epithelial crosstalk in prostate cancer? 

      Nordby, Yngve; Richardsen, Elin; Ness, Nora; Dønnem, Tom; Patel, Hitendra R.H.; Busund, Lill-Tove; Bremnes, Roy M.; Andersen, Sigve (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-24)
      Due to insufficient prognostic tools, failure to predict aggressive prostate cancer (PC) has left patient selection for radical treatment an unsolved challenge. This has resulted in overtreatment with radical therapy. Better prognostic tools are urgently warranted. MicroRNAs (miRs) have emerged as important regulators of cellular pathways, resulting in altered gene expressions. miR-205 has previously ...

    • High number of kinome-mutations in non-small cell lung cancers associated with reduced immune response and poor relapse-free survival 

      Helland, Åslaug; Brustugun, Odd Terje; Nakken, Sigve; Halvorsen, Ann Rita; Dønnem, Tom; Bremnes, Roy M.; Busund, Lill-Tove; Sun, Jinchang; Lorenz, Susanne; Solberg, Steinar; Jørgensen, Lars Hilmar; Vodak, Daniel; Myklebost, Ola; Hovig, Eivind; Meza, Leonardo Zepeda (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-07)
      Lung cancer is the leading cause of cancer related death, and the past years’ improved insight into underlying molecular events has significantly improved outcome for specific subsets of patients. In particular, several new therapies that target protein kinases have been implemented, and many more are becoming available. We have investigated lung cancer specimens for somatic mutations in a targeted ...

    • High progesterone receptor expression in prostate cancer is associated with clinical failure 

      Grindstad, Thea; Andersen, Sigve; Al-Saad, Samer; Dønnem, Tom; Kiselev, Yury; Melbø-Jørgensen, Christian; Skjefstad, Kaja; Busund, Lill-Tove; Bremnes, Roy M.; Richardsen, Elin (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-27)
      Background Prostate cancer is a highly heterogeneous disease and one of the leading causes of mortality in developed countries. Specific prognostic and predictive markers for prostate cancer patients are still lacking. A causal relationship between androgens and the development of prostate cancer is generally considered biologically plausible, but androgens are not the sole effector in the ...

    • High tumor cell expression of microRNA-21 in node positive non-small cell lung cancer predicts a favorable clinical outcome 

      Stenvold, Helge; Dønnem, Tom; Andersen, Sigve; Al-Saad, Samer; Valkov, Andrey Yurjevich; Pedersen, Mona Irene; Busund, Lill-Tove; Bremnes, Roy M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • How Do Elderly Poor Prognosis Patients Tolerate Palliative Concurrent Chemoradiotherapy for Locally Advanced NoneSmall Cell Lung Cancer Stage III? A Subset Analysis From a Clinical Phase III Trial 

      Strøm, Hans Henrik; Bremnes, Roy M.; Sundstrøm, Stein Harald; Helbekkmo, Nina; Aasebø, Ulf (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-05)
      In a phase III trial of patients with unresectable stage III nonesmall-cell lung cancer and a poor prognosis, palliative concurrent chemoradiotherapy (CRT) provided a significantly better outcome than chemotherapy alone, except among performance status 2 patients. The results of the present exploratory subgroup analysis indicate that elderly patients with poor prognosis can also experience ...

    • The impact of MET, IGF-1, IGF1R expression and EGFR mutations on survival of patients with non-small-cell lung cancer 

      Al-Saad, Samer; Richardsen, Elin; Kilvær, Thomas Karsten; Dønnem, Tom; Andersen, Sigve; Rakaee, Mehrdad; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-25)
      Introduction: <br> To compare the efficacy of silver in situ hybridization (SISH) and immunohistochemistry (IHC) in detecting MET and IGF1R alterations and to investigate their prevalence and prognostic significance. A possible correlation between MET receptor expression, MET gene alterations and the two most frequent occurring EGFR gene mutations was also investigated. <br>Materials and ...

    • Independent and Tissue-Specific Prognostic Impact of miR-126 in Nonsmall Cell Lung Cancer 

      Dønnem, Tom; Lønvik, Kenneth; Eklo, Katrine; Berg, Thomas; Sørbye, Sveinung Wergeland; Al-Shibli, Khalid Ibrahim; Al-Saad, Samer; Andersen, Sigve; Stenvold, Helge; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Angiogenesis is pivotal in tumor development. Vascular endothelial growth factor-A (VEGF-A) is considered one of the most important angiogenic factors, but lately several microRNAs (miRs) have been associated with vascular development. miR-126 has been related to tumor angiogenesis and in the regulation of VEGF-A. The authors aimed to investigate the prognostic impact of miR-126 and its co-expression ...

    • Low Expression of miR-424-3p is Highly Correlated with Clinical Failure in Prostate Cancer 

      Richardsen, Elin; Andersen, Sigve; Al-Saad, Samer; Rakaee, Mehrdad; Nordby, Yngve; Pedersen, Mona Irene; Ness, Nora; Ingebriktsen, Lise; Fassina, Ambrogio; Tasken, Kristin Austlid; Millls, Ian; Dønnem, Tom; Bremnes, Roy M.; Rasmussen Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-23)
      Prostate cancer (PC) is a highly heterogenous disease and one of the leading causes of mortality in developed countries. Recently, studies have shown that expression of immune checkpoint proteins are directly or indirectly repressed by microRNAs (miRs) in many types of cancers. The great advantages of using miRs based therapy is the capacity of these short transcripts to target multiple molecules ...

    • Lymphangiogenic Markers and Their Impact on Nodal Metastasis and Survival in Non-Small Cell Lung Cancer--A Structured Review with Meta-Analysis. 

      Kilvær, Thomas Karsten; Paulsen, Erna-Elise; Hald, Sigurd; Wilsgaard, Tom; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-25)
      Background In non-small cell lung cancer (NSCLC), nodal metastasis is an adverse prognostic factor. Several mediating factors have been implied in the development of nodal metastases and investigated for predictive and prognostic properties in NSCLC. However, study results differ. In this structured review and meta-analysis we explore the published literature on commonly recognized pathways for ...

    • Metachronous Contralateral Testicular Cancer in the Cisplatin Era: A Population-Based Cohort Study 

      Hellesnes, Ragnhild; Myklebust, Tor Åge; Bremnes, Roy M.; Karlsdottir, Åsa; Kvammen, Øivind; Negaard, Helene Francisca Stigter; Tandstad, Torgrim; Wilsgaard, Tom; Fosså, Sophie Dorothea; Haugnes, Hege Sagstuen (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-23)
      PURPOSE - It is hypothesized that cisplatin-based chemotherapy (CBCT) reduces the occurrence of metachronous contralateral (second) germ cell testicular cancer (TC). However, studies including treatment details are lacking. The aim of this study was to assess the second TC risk, emphasizing the impact of previous TC treatment.<p> <p>PATIENTS AND METHODS - Based on the Cancer Registry of Norway, ...

    • MicroRNA 141 is associated to outcome and aggressive tumor characteristics in prostate cancer 

      Richardsen, Elin; Andersen, Sigve; Melbø-Jørgensen, Christian; Rakaee, Mehrdad; Ness, Nora; Al-Saad, Samer; Nordby, Yngve; Pedersen, Mona Irene; Dønnem, Tom; Bremnes, Roy M.; Rasmussen Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-23)
      A large number of miRNAs influence key cellular processes involved in prostate tumorigenesis. Previous studies have demonstrated high expression of miRNAs in human prostate cancer (PC) tissues and cell lines. In previous microarray data, we found miR-141 to be upregulated and miR-145 to be downregulated in PC. In this large PC cohort (n = 535), we explored the prognostic role of miR-141 and miR-145 ...

    • MicroRNA Signatures in Tumor Tissue Related to Angiogenesis in Non-Small Cell Lung Cancer 

      Dønnem, Tom; Fenton, Christopher Graham; Lønvik, Kenneth; Berg, Thomas; Eklo, Katrine; Andersen, Sigve; Stenvold, Helge; Al-Shibli, Khalid Ibrahim; Al-Saad, Samer; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Angiogenesis is regarded as a hallmark in cancer development, and anti-angiogenic treatment is presently used in non-small cell lung cancer (NSCLC) patients. MicroRNAs (miRs) are small non-coding, endogenous, single stranded RNAs that regulate gene expression. In this study we aimed to identify significantly altered miRs related to angiogenesis in NSCLC. From a large cohort of 335 NSCLC patients, ...

    • Monocarboxylate transporters 1-4 in NSCLC: MCT1 is an independent prognostic marker for survival 

      Eilertsen, Marte; Andersen, Sigve; Al-Saad, Samer; Kiselev, Yury; Dønnem, Tom; Stenvold, Helge; Pettersen, Ingvild; Al-Shibli, Khalid; Richardsen, Elin; Busund, Lill-Tove; Bremnes, Roy M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Muscle mass and association to quality of life in non-small cell lung cancer patients 

      Bye, Asta; Sjøblom, Bjørg; Wentzel-Larsen, Tore; Grønberg, Bjørn Henning; Baracos, Vickie E.; Hjermstad, Marianne Jensen; Aass, Nina Kathrine; Bremnes, Roy M.; Fløtten, Øystein; Jordhøy, Marit Slaaen (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-05-10)
      Background<br> Cancer wasting is characterized by muscle loss and may contribute to fatigue and poor quality of life (QoL). Our aim was to investigate associations between skeletal muscle index (SMI) and skeletal muscle radiodensity (SMD) and selected QoL outcomes in advanced non‐small cell lung cancer (NSCLC) at diagnosis.<p> Methods<br> Baseline data from patients with stage IIIB/IV NSCLC and ...

    • Mutasjonstesting ved ikke-småcellet lungekreft 

      Brustugun, Odd Terje; Helland, Åslaug; Fjellbirkeland, Lars; Kleinberg, Lilach; Ariansen, Sarah Louise; Jebsen, Peter Wilhelm; Scott, Helge; Dønnem, Tom; Bremnes, Roy M.; Berg, Thomas; Grønberg, Bjørn Henning; Dai, Hong Yan; Wahl, Sissel Gyrid Freim; Mangseth, Kjersti; Helgeland, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-04-30)
      Bakgrunn. Epidermal vekstfaktorreseptor (EGFR) tyrosinkinasehemmere (EGFR-TKI) er en relativt ny klasse legemidler til behandling av ikke-småcellet lungekreft. Den nasjonale faggruppen for lungekreft, Norsk Lunge Cancer Gruppe, anbefaler at pasienter med ikke-småcellet lungekreft testes for mutasjoner i EGFRgenet. Vi rapporterer her erfaringene som er gjort etter at slik testing ble innført i ...