Sökning: "phagocyte"
Visar resultat 11 - 15 av 29 avhandlingar innehållade ordet phagocyte.
11. Reactive oxygen species as signalling molecules in immunity
Sammanfattning : Cytotoxic lymphocytes such as natural killer (NK) cells and subsets of T cells are key components of the host defense against malignancy and infection. Earlier studies have demonstrated that NK cells and several phenotypes of T cells become dysfunctional and apoptotic after exposure to autologous monocyte/macrophages and other phagocytes. LÄS MER
12. Regulation of innate and adaptive immune responses by Gram-positive and Gram-negative bacteria
Sammanfattning : Bacteria are classified as Gram-positive or Gram-negative, depending on their cell wall structure. The role of the bacterial cell wall in immune regulation is the focus of the current work. Most Gram-positive bacteria stimulate monocytes to produce large amounts of IL-12. LÄS MER
13. Inflammatory mediator response to Gram-positive and Gram-negative bacteria in vitro and in middle ear infections
Sammanfattning : Based on the structure of the cell wall, bacteria are divided into Gram-positive and Gram-negative. While the cell wall of Gram-positive bacteria is thick, the cell wall of Gram-negatives is very thin and surrounded by an outer membrane with LPS. LÄS MER
14. Human dendritic cells : a study of early events during pathogen recognition and antigen endocytosis
Sammanfattning : The mononuclear phagocyte cell system includes monocytes, macrophages anddendritic cells which are important cells in order to recognize, ingest, destroyand also present part of a pathogen to T-lymphocytes in order to activate theadaptive immune system. Dendritic cells (DCs) stand out in their ability tostimulate T-lymphocytes and are also believed to be important to keeptolerance for “self-antigens”. LÄS MER
15. The Role of Reactive Oxygen Species in Animal Models of Autoimmunity
Sammanfattning : Reactive oxygen species (ROS) produced by the phagocyte NADPH oxidase complex are important in the killing of invading pathogens. Lately, a role of ROS has been suggested in regulation of the immune system. LÄS MER