Generation of Tumor-associated Cytotoxic T Lymphocytes Requires Interleukin 4 from CD8+ T Cells

Abstract

Activation of tumor-associated CD8(+) cytotoxic T lymphocytes (CTLs) often requires antigen representation, e.g., by dendritic cells (DCs), and CD4(+) T cell help. Previously, we showed that CTL-mediated tumor immunity required interleukin 4 (IL-4) during the immunization but not effector phase. To determine the source and target cells of IL-4, we performed… (More)

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