Epigenetic memory in induced pluripotent stem cells
2010
Pluripotent stem cells can be generated in the laboratory through somatic cell nuclear transfer (generating nuclear transfer embryonic stem cells, ntESCs) or transcription-factor-based reprogramming (producing induced pluripotent stem cells, iPSCs). These methods reset the methylation signature of the genome — but to what extent? Here it is found that mouse iPSCs 'remember' the methylation status of their tissue of origin, but the methylation of ntESCs is more similar to that of naturally produced ES cells.
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