Abstract: The instant disclosure is directed to methods for generating stem cell-derived immune cells with enhanced function. Disclosed herein are methods for modifying a stem or progenitor cell capable of differentiating into an immune cell to inhibit the function of at least one gene selected from DGK? and DGK?, and directing differentiation of that stem or progenitor cells towards enhanced immune cells. Also disclosed herein are immune cells or stem cells made by the present methods, as well as the use of immune cells in therapeutic treatment.