Five studies show that disabling p53, an essential tumour-suppressor protein, improves the efficiency of stem-cell production. Although these observations catapult p53 into the centre of stem-cell study, time will tell whether they represent a promise or a warning. iPS cells were first produced three years ago6 from the enforced manifestation of genes encoding four transcription… Continue reading Five studies show that disabling p53, an essential tumour-suppressor protein, improves