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Immuno and Infection
Final
| Question | Answer |
|---|---|
| Transduction | Transfer of bacterial genetic info using bacteriophage. Generalized and specialized |
| Transposition | insertion of genetic information into genome may carry additional info disrupt normal gene or insert new info |
| Intracellular bacterial infection | Th1 mediated DTH, CTLs and ADCC |
| Extracellular bacterial infection | Th2 ab mediated response; opsonization, C', ADCC |
| Innate response to Bacteria | Inflamation - phagocytic cells, C' Mac lysis if unencapsulated Gram -/ cell wall-less |
| Id Ag specific T cells | MHC class I tetramers; bound to biotinylated avidin |
| Cytotoxicity Assay | 51Cr release assay; 51Cr added to infected target cell lysed? by CD8; measure release --> effective killing? |
| Microtoxicity assay | Trypan blue test; Anti-HLA for MHCI; |
| TGF-beta | secreted by platelets, macrophages, lymphocytes and mast cells. Fxn: stimulate epithelial and mesenchymal growth. Downregulates proinflamatory activities. Induces IgA class switching |
| IL-1 | •Secreted by mono, macro, dendritic, endothelial, B and other •major role in the development of innate response |
| IL-2 | •Secreted by activated T cells |
| IL-3 | •Secreted by T cells, NK cells, eosinophils and mast cells |
| IL-4 | •Secreted by T cells, NK cells and mast cells– Regulates some stages of hematopoiesis |