Here, we present a protocol to genetically modify primary or expanded human natural killer (NK) cells using Cas9 Ribonucleoproteins (Cas9/RNPs). By using this protocol, we generated human NK cells deficient for transforming growth factor–b receptor 2 (TGFBR2) and hypoxanthine phosphoribosyltransferase 1 (HPRT1).
Naeimi Kararoudi, M., Dolatshad, H., Trikha, P., Hussain, S. A., Elmas, E., Foltz, J. A., Moseman, J. E., Thakkar, A., Nakkula, R. J., Lamb, M., Chakravarti, N., McLaughlin, K. J., Lee, D. A. Generation of Knock-out Primary and Expanded Human NK Cells Using Cas9 Ribonucleoproteins. J. Vis. Exp. (136), e58237, doi:10.3791/58237 (2018).