Sökning: "Cell lysis"

Visar resultat 1 - 5 av 93 avhandlingar innehållade orden Cell lysis.

  1. 1. Unique Solutions to Universal Problems : Studies of the Archaeal Cell

    Författare :Erik A. Pelve; Rolf Bernander; Sonja Verena Albers; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Archaea; Cdv; Cell cycle; Cell division; Cell lysis; Crenarchaea; ESCRT-III; Flow cytometry; Microarray; Microscopy; Nitrosopumilus; SIRV2; Sulfolobus; Thaumarchaea; Transcription; VAP; Virus; Biology with specialization in Molecular Evolution; Biologi med inriktning mot molekylär evolution;

    Sammanfattning : Archaea is one of the three domains of life and studies of archaeal biology are important for understanding of life in extreme environments, fundamental biogeochemical processes, the origin of life, the eukaryotic cell and their own, unique biology. This thesis presents four studies of the archaeal cell, using the extremophilic Sulfolobus and ocean living Nitrosopumilus as model systems. LÄS MER

  3. 2. Ultrasonic Fluid and Cell Manipulation

    Författare :Mathias Ohlin; Martin Viklund; Hans Hertz; Peter Glynne-Jones; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 3D cell culture; Acoustic streaming; Acoustofluidics; Cell manipulation; High-resolution imaging; Multi-well; Microplate; Natural killer cell; Piezo; Radiation force; Solid tumor; Solubilization; Spheroid; Standing wave; Temperature control; Transducer; Trapping; Ultrasonic; Fysik; Physics; Biological Physics; Biologisk fysik;

    Sammanfattning : During the last decade, ultrasonic manipulation has matured into an important tool with a wide range of applications, from fundamental cell biological research to clinical and industrial implementations. The contactless nature of ultrasound makes it possible to manipulate living cells in a gentle way, e.g. LÄS MER

  4. 3. Virus mediated induction of antibody independent cytotoxicity (VDCC) and enhancement of antibody dependent cytotoxicity (ADCC) in human lymphocytes in vitro

    Författare :Abdul-Razzak Alsheikhly; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : Addition in vitro of small amounts of paramyxoviruses (Mumps or Sendai) to lymphocytes from healthy human donors induces a strong and non-selective cytotoxicity against a variety of target cells (VDCC, virus dependent cellular cytotoxicity). VDCC-like reactions are believed to play a role in vivo in the defense against virus infection and/or the causation of the tissue lesions associated with virus disease. LÄS MER

  5. 4. Novel complement regulatory mechanisms in disease

    Författare :Emelie Holmquist; Malmö Proteinkemi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : The complement system is one of the most important defence mechanisms against bacteria and pathogens. It acts within the framework of both innate and adaptive immunity. LÄS MER

  7. 5. Studies of pore-forming bacterial protein toxins in Escherichia coli

    Författare :Constance Enow; Bernt Eric Uhlin; Sun Nyunt Wai; Mikael Rehn; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; molekylärbiologi; Molecular Biology;

    Sammanfattning : Escherichia coli, a Gram-negative bacterium, which can be classified into three groups: the commensal, intestinal pathogenic (IPEC) and extra-intestinal pathogenic (ExPEC) E. coli. The cytolysin A (ClyA) protein, a 34-kDa pore-forming toxin, encoded by a gene found in both non-pathogenic and pathogenic E. LÄS MER