GPT and neoplasm: To evaluate the therapeutic potential of the iNK cells in vivo, we established a human tumor xenograft animal model by transplanting the luciferase-expressing A1847 (A1847-luci+) cells (2 × 105 cells/mouse) into NCG (a commercial NOD/ShiLtJGpt-Prkdcem26Cd52Il2rgem26Cd22/Gpt strain) mice on Day –1.