CD47 and leukemia: <i>In vivo</i> studies evaluated biodistribution, tumor infiltration, and efficacy in Nalm-6 systemic leukemia and 1806-luc subcutaneous ovarian cancer models.<h4>Results</h4>Rlip coating stably presented CD47, functionally impairing macrophage phagocytosis and enhancing peripheral persistence without altering memory subsets, activation markers, or cytotoxicity.