In a separate OS model using MG63 cells (s.c. inoculated) and PB‐derived EphA2‐CAR‐NK cells for treatment (Figure 5F), primary tumour growth was markedly inhibited in the EphA2‐CAR‐NK cell group (Figure 5G), accompanied by a notable survival benefit (Figure 5H). The gene discussed is EPHA2; the disease is neoplasm.