p53 throws a wrench in the CRISPR/Cas9 gears

Of all the potential uses for genome editing via CRISPR/Cas9, perhaps the most exciting involves introducing therapeutic changes into human pluripotent stem cells (hPSCs) which can then be differentiated into many different cell types. A serious obstacle to such engineering is the finding that the tumor suppressor p53 inhibits CRISPR/Cas9 editing in hPSCs.