Responses of CD8(+) T cells to intracellular bacteria.
Recent studies of CD8(+) T cell responses against intracellular bacteria have provided insights into the relevance of the exogenous and endogenous MHC class I presentation pathways during the priming and effector stages. The capacity of these organisms to deliver vaccine antigens, either as bacterial protein or as plasmid DNA expressed by host antigen-presenting cells, has been investigated. Ongoing studies of CD8(+) T cell effector functions suggest the existence of novel pathways of resistance to bacterial infection. These results, together with advances in our understanding of nonclassical MHC class I presentation, reveal the impact of pathogen biology on host immunity to infection.
Department of Microbiology, Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City 52242, USA. john-harty@uiowa.edu.
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JT
Harty
M J
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Bevan
D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology; D001419:Bacteria / Q000276:immunology*; D001424:Bacterial Infections / Q000276:immunology*; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology*; D006801:Humans
D000942:Antigens, Bacterial