Blar i forfatter "Pedersen, Mona Irene"

Viser treff 1-14 av 14

    • Evaluation of the proliferation marker Ki-67 in a large prostatectomy cohort 

      Richardsen, Elin; Andersen, Sigve; Al-Saad, Samer; Rakaee, Mehrdad; Nordby, Yngve; Pedersen, Mona Irene; Ness, Nora; Grindstad, Thea K.W.; Movik, Ingeborg; Dønnem, Tom; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      The tumor proliferation index marker Ki-67 is strongly associated with tumor cell proliferation, growth and progression, and is widely used in routine clinicopathological investigation. Prostate cancer is a complex multifaceted and biologically heterogeneous disease, and overtreatment of localized, low volume indolent tumors, is evident. Here, we aimed to assess Ki-67 expression and related ...

    • Evaluation of the proliferation marker Ki-67 in a large prostatectomy cohort. 

      Richardsen, Elin; Andersen, Sigve; Al-Saad, Samer; Rakaee, Mehrdad; Nordby, Yngve; Pedersen, Mona Irene; Ness, Nora; Grindstad, Thea K.W.; Movik, Ingeborg; Dønnem, Tom; Bremnes, Roy M.; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      The tumor proliferation index marker Ki-67 is strongly associated with tumor cell proliferation, growth and progression, and is widely used in routine clinicopathological investigation. Prostate cancer is a complex multifaceted and biologically heterogeneous disease, and overtreatment of localized, low volume indolent tumors, is evident. Here, we aimed to assess Ki-67 expression and related ...

    • Expression and function of the miR-143/145 cluster in vitro and in vivo in human breast cancer 

      Johannessen, Charles; Moi, Line; Kiselev, Yury; Pedersen, Mona Irene; Dalen, Stig Manfred; Braaten, Tonje; Busund, Lill-Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-26)
      MicroRNAs (miRNAs) are small non-coding RNAs that function as post-transcriptional regulators of gene expression and are dysregulated in cancer. Studies of miRNAs to explore their potential as diagnostic and prognostic markers are of great scientific interest. Here, we investigate the functional properties and expression of the miR-143/145 cluster in breast cancer (BC) in vitro and in vivo. The ER ...

    • Expression of miR-24-1-5p in Tumor Tissue Influences Prostate Cancer Recurrence: The PROCA-life Study 

      Stikbakke, Einar; Wilsgaard, Tom; Haugnes, Hege Sagstuen; Pedersen, Mona Irene; Knutsen, Tore; Støyten, Martin; Giovannucci, Edward; Eggen, Anne Elise; Thune, Inger; Richardsen, Elin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-23)
      The role of miR-24-1-5p and its prognostic implications associated with prostate cancer are mainly unknown. In a population-based cohort, the Prostate Cancer Study throughout life (PROCA-life), all men had a general health examination at study entry and were followed between 1994 and 2016. Patients with available tissue samples after a prostatectomy with curative intent were identified (n = 189). ...

    • 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 IRS-1, RUNX3 and SMAD4 Are Positive Prognostic Factors in Stage I–III Colon Cancer 

      Selven, Hallgeir; Rasmussen Busund, Lill-Tove; Andersen, Sigve; Pedersen, Mona Irene; Lombardi, Ana Paola Giometti; Kilvær, Thomas Karsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-24)
      Colon cancer is a common malignancy and a major contributor to human morbidity and mortality. In this study, we explore the expression and prognostic impact of IRS-1, IRS-2, RUNx3, and SMAD4 in colon cancer. Furthermore, we elucidate their correlations with miRs 126, 17-5p, and 20a-5p, which are identified as potential regulators of these proteins. Tumor tissue from 452 patients operated for stage ...

    • High expression of miR-17-5p and miR-20a-5p predicts favorable disease-specific survival in stage I-III colon cancer 

      Selven, Hallgeir; Kilvær, Thomas Karsten; Andersen, Sigve; Rasmussen Busund, Lill-Tove; Pedersen, Mona Irene; Lombardi, Ana Paola (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-30)
      In many types of cancer, microRNAs (miRs) are aberrantly expressed. The aim of this study was to explore the prognostic impact of miR-17-5p and miR-20a-5p in colon cancer. Tumor tissue from 452 stage I-III colon cancer patients was retrospectively collected and tissue microarrays constructed. miR-17-5p and miR-20a-5p expression was evaluated by in situ hybridization and analyzed using digital ...

    • 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 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)

    • Impact of microvessel patterns and immune status in NSCLC: a non-angiogenic vasculature is an independent negative prognostic factor in lung adenocarcinoma 

      Paulsen, Erna-Elise; Andersen, Sigve; Rakaee, Mehrdad; Pedersen, Mona Irene; Lombardi, Ana Paola; Pøhl, Mette; Kilvær, Thomas Karsten; Rasmussen Busund, Lill-Tove; Pezzella, Francesco; Dønnem, Tom (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-26)
      Introduction: Non-small cell lung carcinomas (NSCLC) exhibit different microvessel patterns (MVPs). Basal (BA), diffuse (DA) and papillary (PA) patterns show signs of angiogenesis (new blood vessels), while an alveolar pattern indicates that tumors are co-opting existing normal vessels (non-angiogenic alveolar, NAA). NAA tumor growth is known to exist in NSCLC, but little is known about its prognostic ...

    • Laeverin Protein Expression in Normal and Preeclamptic Placentas using Tissue Microarray Analysis 

      Nystad, Mona; Sitras, Vasilis; Nordbakken, Cecilie Valborg; Pedersen, Mona Irene; Acharya, Ganesh (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-21)
      <p><i>Introduction - </i>Laeverin is a placenta‐specific protein that is normally expressed in the plasma membrane of human trophoblasts. In previous studies, we showed higher expression levels of laeverin gene in preeclamptic compared with normal placentas and found that laeverin protein was ectopically expressed in the cytoplasm of the preeclamptic placentas. Our objective was to investigate ...

    • 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 ...

    • Machine learning-based immune phenotypes correlate with STK11/KEAP1 co-mutations and prognosis in resectable NSCLC: a sub-study of the TNM-I trial 

      Rakaee, Mehrdad; Andersen, S.; Giannikou, K.; Paulsen, Erna-Elise; Kilvær, Thomas Karsten; Rasmussen Busund, Lill-Tove; Berg, Thomas; Richardsen, Elin; Lombardi, Ana Paola; Adib, E.; Pedersen, Mona Irene; Tafavvoghi, Masoud; Wahl, Sissel Gyrid Freim; Petersen, R.H.; Bondgaard, A.L.; Yde, C.W.; Baudet, C.; Licht, P.; Lund-Iversen, Marius; Grønberg, Bjørn Henning; Fjellbirkeland, Lars; Helland, Åslaug; Pøhl, M.; Kwiatkowski, D.J.; Dønnem, Tom (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-24)
      Background - We aim to implement an immune cell score model in routine clinical practice for resected non-small-cell lung cancer (NSCLC) patients (NCT03299478). Molecular and genomic features associated with immune phenotypes in NSCLC have not been explored in detail.<p> <p>Patients and methods - We developed a machine learning (ML)-based model to classify tumors into one of three categories: ...

    • 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 ...