Building on the success of the adoptive immunotherapy of cancer

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Adoptive immunotherapy for cancer: building on success. Substantial progress has been made in our understanding of the molecular and cellular bases of T cell mediated anti-tumor responses. T cells are potent effectors of the adaptive anti-tumor immune response. Some target antigens recognized by tumor-reactive CD8+ T cells are mutated antigens. The molecular signals that modulate T cell activation, function and memory are being elucidated. Both positive and negative signals from co-stimulatory molecules have been shown to shape the anti-tumor response. Cytokines, including those with receptors that contain the common cytokine-receptor gamma chain have been shown to alter the programming of effector CD8+ T cells. We are also characterizing the metabolic characteristics of T cells that are capable of destroying tumor. In addition, we have studied the mechanisms that tumor cells use to escape recognition by T cells.