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Capturing totipotency in human cells through spliceosomal repression

ABSTRACT: Capturing totipotency in human cells through spliceosomal repression

PROVIDER: PRJNA939202 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23634100_1.fastq.gz	Fastqsanger.gz
	SRR23634100_2.fastq.gz	Fastqsanger.gz
	SRR23635500_1.fastq.gz	Fastqsanger.gz
	SRR23635500_2.fastq.gz	Fastqsanger.gz
	SRR23634101_1.fastq.gz	Fastqsanger.gz

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Mouse totipotent stem cells captured and maintained through spliceosomal repression

Project description:Since the establishment of the first embryonic stem cells (ESCs), in vitro culture of totipotent cells functionally and molecularly comparable to in vivo blastomeres with embryonic and extraembryonic developmental potency is unviable. Spliceosomes are responsible for mRNA splicing and maturation. Here, we report that spliceosomal repression in mouse ESCs drives pluripotent-to-totipotent state transition. Using the splicing inhibitor Pladienolide B, we realize in vitro culturing of totipotent ESCs comparable to 2- and 4-cell blastomeres at molecular levels for long-time passages, which are therefore termed as totipotent blastomere-like cells (TBLCs). Mouse chimeric assays combined with single-cell RNA-seq technology demonstrate that TBLCs own a robust bidirectional development capability to generate multiple embryonic and extraembryonic cell lineages. Mechanically, spliceosomal repression causes widespread splicing inhibition of pluripotent genes, whereas the totipotent genes featured with few short introns are efficiently spliced and transcriptionally activated. Our study provides a principle for capturing and maintenance of totipotent stem cells.

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