Sökning: "Cell cycle arrest"

Visar resultat 1 - 5 av 180 avhandlingar innehållade orden Cell cycle arrest.

  1. 1. Sugar-modulated gene expression and cell division in cell culture and seedlings of A. thaliana

    Författare :Sabine Kunz; Leszek A. Kleczkowski; Alison Smith; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis thaliana; carbohydrates; cell culture; cell division; gene expression; homeostasis; live cell imaging; sugar-signals; sugar-analogues; Physiological Botany; fysiologisk botanik;

    Sammanfattning : Throughout their life cycle, plants adjust growth in response to their developmental and environmental situation within the limits of their energetic capacities. This capacity is defined by the local sugar availability, which is constantly modulated through synthesis, transport and consumption of sugar. LÄS MER

  2. 2. Optimizing experimental radioimmunotherapy : investigating the different mechanisms behind radiation induced cell deaths

    Författare :Theres Lindgren; David Eriksson; Torgny Stigbrand; Bo Stenerlöw; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mitotic catastrophe; senescence; cell cycle checkpoint; apoptosis; radiation; gene expression; p53; immunologi; Immunology; radiofysik; radiation physics;

    Sammanfattning : Background. Radiation therapy is an important treatment regimen for malignant disease. Radiation therapy uses ionizing radiation to induce DNA damage in tumor cells in order to kill them. LÄS MER

  3. 3. Coping with Stress : Regulation of the Caulobacter crescentus cell cycle in response to environmental cues

    Författare :Kristina Heinrich; Kristina Jonas; Emanuele Biondi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Caulobacter crescentus; bacteria; cell cycle; stress; filamentation; cell morphology; DNA replication; cell division; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : All organisms have to respond to environmental changes to maintain cellular and genome integrity. In particular, unicellular organisms like bacteria must be able to analyze their surroundings and rapidly adjust their growth mode and cell cycle program in response to environmental changes, such as changes in nutrient availability, temperature, osmolarity, or pH. LÄS MER

  4. 4. Mechanisms of Regulation of the Cell Cycle Inhibitor p21Waf1/Cip1 in TGF-β-Mediated Cell Growth Inhibition

    Författare :Katerina Pardali; Aristidis Moustakas; Carl-Hernrik Heldin; Marikki Laiho; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; TGF-β; cell cycle; p21; Smad; signal transduction; transcription; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi;

    Sammanfattning : TGF-β is the founding member of a multifunctional family of cytokines that regulate many aspects of cell physiology, including cell growth, differentiation, motility and death and play important roles in many developmental and pathological processes. TGF-β signals by binding to a heterotetrameric complex of type I and type II serine/threonine kinase receptors. LÄS MER

  5. 5. Roles of secreted bacterial factors in modulation of host cell signalling

    Författare :Eric Toh; Sun Nyunt Wai; Teresa Frisan; Staffan Bohm; Ann-Beth Jonsson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bacteria-host interaction; motility-associated killing factor A; outer membrane vesicles; cytolysin A; phosphatidylinositol 4-phosphate 5-kinase alpha; enhancer of zeste homologue 2; epigenetic modulation; Medical Cell Biology; medicinsk cellbiologi; mikrobiologi; Microbiology;

    Sammanfattning : Pathogenic bacteria employ several secretion systems to release or inject virulence factors that may alter host cell processes, generate a replicative niche, and aid bacterial survival in adverse environments. This thesis presents my investigations on how bacterial factors can modulate host cell signalling mechanisms. LÄS MER