IL15 and neuroblastoma: Since GD2.CAR-NKTs co-expressing IL-15 have been proved to be effective in pediatric patients with neuroblastoma, we compared GD2.CAR.IL15 NKTs with GD2.CAR(I)IL12 and GD2.CAR(I)IL12.TM in the neuroblastoma murine model at the lowest dose of CAR-NKTs.