CD47 and neoplasm: Consistent with inhibited tumor regrowth and antibody penetration in the combined treatments, increased macrophage-mediated phagocytosis on tumor cells was evidenced in combined treatment with ET and anti-CD47 antibody (Fig. 8a, b and Supplementary Fig. 15), although radiation with ET or anti-CD47 treatment also inspired a certain level of macrophage infiltration and phagocytosis on the tumor cells.