In combination with rhIL-2, exp_GAIA integrates endogenous NK activity with induction of long-lasting, CD8+T cell-dependent antitumor immunity via a CCR5-CCL3-NK-IFN-γ-CD8 pathway, reinforced ICD with CRT exposure. These findings support exp_GAIA+rhIL-2 as a new NK-based strategy for durable control of solid tumors.