T cell mediated immunity to Mycobacterium tuberculosis |
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Authors: | Stenger S Modlin R L |
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Affiliation: | Institut fuer Klinische Mikrobiologie, Immunologie und Hygiene Universitaet Erlangen D-91054 Erlangen Germany. |
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Abstract: | Recent advances in the characterization of the protective immune response to mycobacteria have highlighted the central role of phenotypically and functionally distinct subsets of T cells. These T cell subsets not only contribute to host defense by the secretion of macrophage-activating cytokines, but also by lysing the host cell. Besides releasing intracellular pathogens, which can then be taken up and killed by newly recruited macrophages, it has now been demonstrated that lysis of infected targets by one subset of cytolytic T cells can directly kill Mycobacterium tuberculosis. |
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