NK cells as the missing link between anti-cancer chemotherapy and CD8 T cell responses

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Cytotoxic chemotherapy is the standard of care for most tumors but it rarely cures. The immune system has the capacity to destroy malignant cells but tumors usually evade immune destruction. Combination of chemo- immunotherapy may change this. DNA damage in tumor cells, caused by chemotherapy, induces expression of a set of molecules that activate Natural Killer cells. These cells can then activate anti-tumor T cells. Therapies that enhance this pathway may induce sustained anti-tumor effects.