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Transcriptional analysis of intermediates during human primed and naïve reprogramming.

ABSTRACT: Transcriptional analysis of intermediates during human primed and naïve reprogramming.

PROVIDER: PRJNA629766 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11680300.fastq.gz	Fastqsanger.gz
	SRR11680301.fastq.gz	Fastqsanger.gz
	SRR11680302.fastq.gz	Fastqsanger.gz
	SRR11680303.fastq.gz	Fastqsanger.gz
	SRR11680304.fastq.gz	Fastqsanger.gz

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Transcriptional analysis of intermediates during human primed and naïve reprogramming.

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Project description:Single cell analysis provides clarity unattainable with bulk approaches. Here we apply single cell RNA-seq to a newly established BMP4 induced mouse primed to naive transition (Bi-PNT) system and show that the reset is not a direct reversal of cell fate but through developmental intermediates. We first show that mEpiSCs bifurcate into c-Kit+ naïve and c-Kit- placenta-like cells, among which, the naive branch undergoes further transition through a primordial germ cell-like cells (PGCLCs) intermediate capable of spermatogenesis in vivo. Indeed, deficiency of Prdm1/Blimp1, the key regulator for PGC specification, blocks the induction of PGCLCs and naïve cells. Instead, Gata2 knockout arrests placenta-like fate, but facilitates the generation of PGCLCs. Our results not only reveal a newly cell fate dynamics between primed and naive states at single-cell resolution, but also provide a model system to explore mechanisms involved in regaining germline competence from primed pluripotency.

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Single Cell Sequencing Reveals Early PGC-like Intermediates During Mouse Primed to Naïve Transition

Project description:Single Cell Sequencing Reveals Early PGC-like Intermediates During Mouse Primed to Naïve Transition

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Defining Essential Regulators of Naïve Human Pluripotent Cell Reprogramming

Project description:Defining how human pluripotent cell identity is controlled and in particular how naïve pluripotency is acquired during cell reprogramming is crucial for the future applications of pluripotent stem cells. However, the regulatory pathways of naïve cell reprogramming remain incompletely understood. Here, we used genome-wide CRISPR-Cas9 screening to identify novel regulators of primed to naïve pluripotent stem cell reprogramming, including genes that are essential for reprogramming and genes that normally impede reprogramming and whose targeted deletion led to enhanced reprogramming. Integrated analysis defined specific chromatin complexes and signalling pathways as critical regulators of naïve reprogramming, and were largely distinct from regulators of somatic cell reprogramming. Mechanistically, PRC1.3 and PRDM14 are jointly required to transcriptionally repress developmental and gene regulatory factors to ensure naïve cell reprogramming. Additionally, small molecule inhibitors of reprogramming impediments increased the efficiency of naïve cell reprogramming, and are of practical benefit that can improve on current reprogramming methods. Taken together, we have identified novel regulators controlling the establishment of naïve pluripotency in human cells, which will open up new ways to exploit the full potential of pluripotent stem cells. These results also provide new insights into mechanisms that destabilise and reconfigure cell identity during cell state transitions.

2022-04-06 | PXD023547 | Pride

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