Chemically modified guide RNAs enhance CRISPR-Cas genome editing in human primary cells


Ayal Hendel, Rasmus O Bak, Joseph T Clark, Andrew B Kennedy, Daniel E Ryan, Subhadeep Roy, Israel Steinfeld, Benjamin D Lunstad, Robert J Kaiser, Alec B Wilkens, Rosa Bacchetta, Anya Tsalenko, Douglas Dellinger, Laurakay Bruhn & Matthew H Porteus

Nature Biotechnology 33, 985–989 (2015), Published online 29 June 2015

CRISPR-Cas-mediated genome editing relies on guide RNAs that direct site-specific DNA cleavage facilitated by the Cas endonuclease. Here we report that chemical alterations to synthesized single guide RNAs (sgRNAs) enhance genome editing efficiency in human primary T cells and CD34+ hematopoietic stem and progenitor cells.

Have a question? Let’s chat.