CD47 and neoplasm: Notably, CD47 Y286F and CD47 K99/102R expression increased and decreased phagocytosis of the GFP‐expressing tumor cells by infiltrated tumor‐associated macrophages (TAMs), respectively, as detected by immunofluorescence staining of F4/80 a macrophage marker (Figure 6D,E and Figure S6D, Supporting Information, left table).