Journal
NATURE COMMUNICATIONS
Volume 5, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms4678
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Funding
- The Japanese Society for the Promotion of Science
- The Ministry of Education, Culture, Sports, Science and Technology
- The Leading Project of the Ministry of Education, Culture, Sports, Science and Technology
- World-Leading Innovative Research and Development on Science and Technology (First Program) of The Japanese Society for the Promotion of Science
- Grants-in-Aid for Scientific Research [24116703, 24657144] Funding Source: KAKEN
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During mammalian embryonic development, the primitive streak initiates the differentiation of pluripotent epiblast cells into germ layers. Pluripotency can be reacquired in committed somatic cells using a combination of a handful of transcription factors, such as OCT3/4, SOX2, KLF4 and c- MYC (hereafter referred to as OSKM), albeit with low efficiency. Here we show that during OSKM- induced reprogramming towards pluripotency in human cells, intermediate cells transiently show gene expression profiles resembling mesendoderm, which is a major component of the primitive streak. Based on these findings, we discover that forkhead box H1 (FOXH1), a transcription factor required for anterior primitive streak specification during early development, significantly enhances the reprogramming efficiency of human fibroblasts by promoting their maturation, including mesenchymal to epithelial transition and the activation of late pluripotency markers. These results demonstrate that during the reprogramming process, human somatic cells go through a transient state that resembles mesendoderm.
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