In 2015, a team of researchers led by Dr. Alexander Marson at the University of California, San Francisco successfully edited the genome of human T cells using a Cas9 ribonucleoprotein delivery method.
2015. godine, tim istraživača predvođen Aleksanderom Marsonom na Univerzitetu Kalifornije u San Francisku, uspešno je editovao genom ljudskih T ćelija primenom Cas9 ribonukleoproteinskog metoda isporuke.