Sökning: "phagocytosis"

Visar resultat 26 - 30 av 204 avhandlingar innehållade ordet phagocytosis.

  1. 26. Multiple functions of YopN in the Yersinia pseudotuberculosis type III secretion system : from regulation to in vivo infection

    Författare :Sarp Bamyaci; Åke Forsberg; Edouard Galyov; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Type III secretion system; Yersinia; YopN; virulence; phagocytosis; mouse infection; secretion kinetics;

    Sammanfattning : The type 3 secretion systems (T3SSs) are virulence mechanisms used by various Gram-negative bacteria to overcome the host immunity. They are often target-cell contact induced and activated. Activation results in targeting of virulence effector substrates into host cells. LÄS MER

  3. 27. Interactions between Streptococcus pyogenes and the Human Immune System

    Författare :Maria Weineisen; Lunds universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; serology; transplantation; Immunologi; serologi; virologi; mykologi; Immunology; mycology; Mikrobiologi; bakteriologi; virology; Biomedicinska vetenskaper; Neutrophils; Streptococcus pyogenes; Biomedical sciences; Phagocytosis; bacteriology; Microbiology; Integrins;

    Sammanfattning : Streptococcus pyogenes is a common human pathogen causing mild infections such as tonsillitis and pharyngitis, but is also the cause of life-threatening conditions. To be able to infect the human host, S. pyogenes express different virulence factors. The surface-expressed M protein is a major virulence factor of S. LÄS MER

  4. 28. Commensal microbes, immune reactivity and childhood inflammatory bowel disease

    Författare :Cecilia Barkman; Göteborgs universitet; []
    Nyckelord :Inflammatory bowel disease; IBD; Pediatric; Childhood; Microbiota; T cells; B cells; cytokine; IL-12; monocytes; phagocytosis; intracellular signaling pathway; Crohn s disease; ulcerative colitis; children; flora;

    Sammanfattning : Inflammatory bowel disease (IBD) is characterized by chronic and relapsing intestinal inflammation of unknown etiology, but immune activation by the commensal microbiota probably plays a major role. The two major categories of IBD are ulcerative colitis and Crohn’s disease. LÄS MER

  5. 29. Immunity & the butterfly : A functional genomic study of natural variation in immunity

    Författare :Naomi L.P. Keehnen; Christopher W. Wheat; Brian Lazzaro; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; eco-immunology; functional genomics; transcriptomics; innate immunity; selection dynamics; melanization; phagocytosis; population genetics; Pieris napi; populationsgenetik; Population Genetics;

    Sammanfattning : Butterflies are ubiquitous and abundant, occurring in a wide variety of environments that contain diverse microbial communities with varied pathogenic pressures. These pathogens and parasites present a constant threat to organisms, and have led to the evolution of complex and intricate immune responses. LÄS MER

  7. 30. Functional characterization of pro-angiogenic neutrophils

    Författare :Jalal Lomei; Mia Phillipson; Gustaf Christoffersson; Johan Kreuger; Lars Olaf Cardell; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; angiogenesis; leukocytes; neutrophils; pro-angiogenic neutrophils; islets transplantation; intravital microscopy; aortic ring assay; phagocytosis; ROS production; hypoxia; vascular permeability; neutrophil recruitment; Medical Cell Biology; Medicinsk cellbiologi;

    Sammanfattning : The vascular system stretches throughout the body to provide oxygen, nutrition, and to remove waste products from cell metabolism. Angiogenesis, formation of new blood vessels by sprouting from pre-existing vessels, is one of the main mechanisms involved in blood vessel formation. LÄS MER