Sökning: "Biomedical Radiation Science"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden Biomedical Radiation Science.

  1. 1. Colorectal cancer and radiation response : The role of EGFR, AKT and cancer stem cell markers

    Författare :Sara Häggblad Sahlberg; Bo Stenerlöw; Bengt Glimelius; Marika Nestor; Torgny Stigbrand; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; colorectal cancer; radiation; AKT; EGFR; cancer stem cells; CD133; CD44; Biomedical Radiation Science; Biomedicinsk strålningsvetenskap; Biologi med inriktning mot molekylär cellbiologi; Biology with specialization in Molecular Cell Biology;

    Sammanfattning : The primary treatment for colorectal cancer is surgery. Radiotherapy and chemotherapy, sometimes combined, are also frequently used to diminish recurrence risk. In response to radiation exposure, several cellular signaling cascades are activated to repair DNA breaks, prevent apoptosis and to keep the cells proliferating. LÄS MER

  3. 2. Radiation response in human cells : DNA damage formation, repair and signaling

    Författare :Ann-Sofie Gustafsson; Bo Stenerlöw; Andrzej Wojcik; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; DNA damage; DNA repair; DSB; NHEJ; DNA-PK; ionizing radiation; heat-labile sites; Biomedical Radiation Science; Biomedicinsk strålningsvetenskap;

    Sammanfattning : Ionizing radiation induces a range of different DNA lesions. In terms of mutation frequency and mammalian cell survival, the most critical of these lesions is the DNA double-strand break (DSB). DSB left unrepaired or mis-repaired may result in chromosomal aberrations that can lead to permanent genetic changes or cell death. LÄS MER

  4. 3. Molecular Radionuclide Imaging Using Site-specifically Labelled Recombinant Affibody Molecules : Preparation and Preclinical Evaluation

    Författare :Sara Ahlgren; Vladimir Tolmachev; Anna Orlova; Göran Hedenstierna; Joachim Feldwisch; Raymond Reilly; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; molecular radionuclide imaging; Affibody molecules; HER2; cancer detection; radiolabelling; technetium; indium; cobalt; SPECT; PET; Oncology; Onkologi; Diagnostic radiology; Diagnostisk radiologi; Radiation biology; Strålningsbiologi; Biomedical Radiation Science; Biomedicinsk strålningsvetenskap; Medicinsk vetenskap; Medical Science;

    Sammanfattning : Radionuclide molecular imaging is an emerging multidisciplinary technique that is used in modern medicine to visualise diseases at cellular and molecular levels. This thesis is based on five papers (I-V) and focuses on the development of site-specific radiolabelled recombinant anti-HER2 Affibody molecules and preclinical evaluations in vitro and in vivo of the labelled conjugates. LÄS MER

  5. 4. Production and biomedical use of non-conventional positron emitters

    Författare :Vladimir Tolmachev; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oncology; Onkologi; Oncology; Onkologi; Biomedical Radiation Science; biomedicinsk strålningsvetenskap;

    Sammanfattning : Positron Emission Tomography (PET) is a powerful diagnostic tool. So far, it has mainly been associated with the use of short-lived positron emitters with half-lives shorter than 2 h, like 11C and 18F. LÄS MER

  7. 5. Radioimmunotherapy in an Immunocompetent Tumor Model utilizing a 177Lu-mAb

    Författare :Erika Elgström; Tumörmikromiljö; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Radioimmunotherapy (RIT) is a therapeutic strategy in which radionuclides are conjugated to monoclonal antibodies that bind to tumor-associated antigens in the tumor, so that the decay of the radionuclide takes place inside the tumor. The aim of the research presented in this thesis was to investigate the effects of RIT (utilizing the radioconjugated antibody 177Lu-BR96) on an inoculated tumor and the development of metastases. LÄS MER