CD47 and neoplasm: Treatment with ouabain or CD47 Ab alone affected tumor progression, whereas the combination treatment (combo) significantly shrank the tumor volume in both the A549‐bearing mouse model (Ctrl: 557.2 ± 108.1 mm3 vs. combo: 106.7 ± 42.24 mm3) and the H1975‐bearing mouse model (Ctrl: 1299 ± 123.1 mm3 vs. combo: 371 ± 95.58 mm3) (Figure 2C,D).