USMLE (Fach) / Immunology (Lektion)
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Cytokines secreted by Th1 cells
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Interferon-γ: - Secreted by NK cells and T cells in response to antigen or IL-12 from macrophages. - Stimulates macrophages to kill phagocytosed pathogens.- Inhibits differentiation of Th2 cells.
- Also activates NK cells to kill virus-infected cells. - Increases MHC expression and antigen presentation by all cells.
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