Conversely, NP can deliver immunostimulatory cargo: a nanocapsule platform successfully packaged and delivered the T-cell-attracting chemokine CCL21, enhancing immune infiltration and tumor growth inhibition in lung cancer models [204], a strategy readily adaptable for CXCL10 to convert immune-cold tumors into hot ones. The gene discussed is CXCL10; the disease is lung carcinoma.