Transcriptomics

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Cell cycle heterogeneity directs spontaneous 2C state entry and exit in mouse embryonic stem cells (RNA-Seq)


ABSTRACT: Mouse embryonic stem cells (ESCs) show cell-to-cell heterogeneity. A small fraction of 2-cell-like cells (2CLCs) marked by endogenous retrovirus activation emerge spontaneously. The 2CLCs are instable and they transit back to the pluripotent state without extrinsic stimulus. To understand how this bidirectional transition takes place, we performed single-cell RNA-seq on isolated 2CLCs which underwent 2C-like state exit and re-entry, and revealed a novel circular transitional process between 2C-like and pluripotent states. Mechanistically, we found that the cell cycle played an important role in mediating these transitions by regulating assembly of nucleolus and peri-nucleolar heterochromatin to influence 2C gene Dux expression. Collectively, our findings provide a roadmap of the 2C-like state entry and exit in ESCs and also a causal role of the cell cycle in promoting these transitions.

ORGANISM(S): Mus musculus

PROVIDER: GSE171258 | GEO | 2021/04/01

REPOSITORIES: GEO

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