Sökning: "Cell Nucleus metabolism"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden Cell Nucleus metabolism.

  1. 1. Micro-environmental control of tumor differentiation and invasiveness

    Författare :Caroline Gélabert; Aristidis Moustakas; Alexander Pietras; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cancer; cell signaling; TGFβ; non-coding RNAs; metabolism;

    Sammanfattning : The transforming growth factor β (TGFβ) family participates in embryonic development and adult tissue homeostasis. In early stages of tumorigenesis, TGFβ promotes cell cycle arrest and apoptosis; however, in advanced malignancies, TGFβ promotes tumor cell migration and metastasis via the induction of epithelial-tomesenchymal transition (EMT). LÄS MER

  3. 2. Interorganellar connectivity : From protein to lipid homeostasis

    Författare :Carlotta Peselj; Sabrina Büttner; Tim Levine; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interorganellar connectivity; nucleus; NVJs; chronic lipid bilayer stress; glucose and phosphate exhaustion; nutritional regimes; transmembrane chaperone; IPTP; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : Interorganellar connectivity is fundamental for the maintenance of organellar and cellular functionality and viability. This is achieved and maintained by a complex network of signaling cascades, vesicle trafficking between organelles as well as by establishment of direct physical contact at membrane contact sites (MCS). LÄS MER

  4. 3. The cell biology and catalytic properties of the nutrient-induced signaling endoprotease Ssy5

    Författare :António Martins; Per O. Ljungdahl; Bruno André; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nutrient sensing; signal transduction; regulated proteolysis; endoprotease; serine protease; substrate specificity; subcellular fractionation; Saccharomyces cerevisiae; Cell Biology; cellbiologi;

    Sammanfattning : Cells continuously sense and respond to changes in the presence, quality and quantity of external and internal nutrients. Specific signaling proteases have been identified based on their roles in processing or destruction of distinct sets of downstream effector proteins in response to environmental cues. LÄS MER

  5. 4. A molecular chaperone that governs membrane contact sites and lipid metabolism

    Författare :Sergi Tosal Castaño; Sabrina Büttner; W. Mike Henne; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Yeast; nucleus-vacuole junctions; proteostasis; unfolded protein response; fatty acid elongation; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : Transmembrane proteins represent almost one third of the total cellular proteome, and the majority of them requires translocation into the endoplasmic reticulum (ER) to be folded, sorted and transported to their final subcellular destination. High translational rates during exponential cell growth result in a massive influx of immature proteins into the ER, requiring rapid and accurate folding. LÄS MER

  7. 5. Studies of penta-decameric binding proteins: AP-4 and CBF-A

    Författare :Alaitz Aranburu; Immunologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; transplantation; Metabolism; serologi; metabolism; Biokemi; serology; Immunology; hnRNP H; NPM; CBF-A; AP-4; transcription; B cells; immunoglobulin; Immunologi;

    Sammanfattning : Each immunoglobulin (Ig) V gene segment contains an upstream promoter region. The octamer element and the TATA box are the only elements that are conserved in all Ig promoters. The presence of the octamer element is necessary, but not sufficient to support high levels of transcription. LÄS MER