Recently, I have been trying to perform CRISPR knock-in on NK-92 cells using AAV to deliver the donor template. I found that some literature reports AAV6 can transduce NK-92 cells; however,in my pre-test of AAV transduction, the percentage of GFP+ cells was less than 2%. Has anyone had experience using AAV to transduce NK-92 cells? Which serotypes would you recommend?