Cytosolic localization of Listeria monocytogenes triggers an early IFN-gamma response by CD8+ T cells that correlates with innate resistance to infection.

Abstract excerpt

IFN-gamma is critical for innate immunity against Listeria monocytogenes (L. monocytogenes), and it has long been thought that NK cells are the major source of IFN-gamma during the first few days of infection. However, it was recently shown that a significant number of CD44highCD8+ T cells also secrete IFN-gamma in an Ag-independent fashion within 16 h of infection with L. monocytogenes. In this report, we showed...

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