Sökning: "cell-mediated cytotoxicity"
Visar resultat 1 - 5 av 39 avhandlingar innehållade orden cell-mediated cytotoxicity.
1. Triggering and mechanisms of natural killer cell mediated cytotoxicity
Sammanfattning : Natural killer (NK) cells are innate immune cells that contribute to defense against infected and transformed cells by target cell killing and cytokine release. In addition, data suggest that NK cells contribute to immune homeostasis and reproduction. LÄS MER
2. Flow cytometric methods for assessment of cell-mediated immune responses
Sammanfattning : The aim of this thesis was to develop and improve flow cytometry-based methods for assessment of cellmediated immune responses (CMI) induced by natural infection or vaccination. Traditionally, the measurement of anti genspecific cellular immune responses has been based on the use of complex, labourintensive, and less informative bulkresults assays (51Cr-release, 3 3H-thymidin uptake and Limiting dilution assay, LDA). LÄS MER
3. Molecular specificities of NK cell-mediated recognition of human tumor cells
Sammanfattning : Natural killer (NK) cells have been implicated in tumor immune surveillance and can reject transformed cells expressing ligands for activating NK cell receptors and low levels of HLA class I. Although NK cells are well known for their ability to kill tumor cells, relatively few studies have addressed the molecular specificity of NK cell-mediated recognition of freshly isolated human tumor cells. LÄS MER
4. On cellular immunology in chronic idiopathic thrombocytopenic purpura (ITP)
Sammanfattning : Chronic idiopathic thrombocytopenic purpura (ITP) is an acquired autoimmune disease characterized by a low platelet count and mucocutaneous bleedings. Chronic ITP is considered to be mediated by autoantibodies leading to premature destruction of platelets in the reticuloendothelial system. LÄS MER
5. Human intestinal T lymphocytes : a comparative analysis of phenotype and function in normal and inflamed mucosa
Sammanfattning : The epithelial lining of the gut must allow immediate contact with beneficial components as nutrients and normal microflora. At the same time it runs the constant risk of attack from pathogenic microbes and noxious agents. LÄS MER