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Induction of meiosis from human pluripotent stem cells

ABSTRACT: Induction of meiosis from human pluripotent stem cells

PROVIDER: PRJNA1117000 | ENA |

REPOSITORIES: ENA

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Induction of meiosis from human pluripotent stem cells

Project description:An in vitro model of human meiosis would accelerate research into this important reproductive process and development of therapies for infertility. We have developed a method to induce meiosis starting from male or female human pluripotent stem cells. We demonstrate that DNMT1 inhibition, retinoid signaling activation, and overexpression of regulatory factors (anti-apoptotic BCL2, and pro-meiotic HOXB5, BOLL, or MEIOC) rapidly activates meiosis, with leptonema beginning at 6 days, zygonema at 9 days, and pachynema at 12 days. Immunofluorescence microscopy shows key aspects of meiosis, including chromosome synapsis and sex body formation. The meiotic cells express genes similar to meiotic oogonia in vivo, including all synaptonemal complex components and machinery for meiotic recombination. These findings establish an accessible system for inducing human meiosis in vitro.

2024-06-01 | GSE268385 | GEO

Polycomb Repressive Complex 2 Restricts Human Naive Pluripotent Stem Cell to Trophoblast Fate Induction

Project description:Human naive pluripotent stem cells have unrestricted lineage potential. Underpinning this property, naive cells are thought to lack chromatin-based lineage barriers. However, this assumption has not been tested. Here, we apply multi-omics to comprehensively define the chromatin-associated proteome, histone post-translational modifications and transcriptome of human naive and primed pluripotent stem cells. Integrating the chromatin-bound proteome and histone modification data sets reveals differences in the relative abundance and activities of distinct chromatin modules, identifying a strong enrichment of Polycomb Repressive Complex 2 (PRC2)-associated H3K27me3 in naive pluripotent stem cell chromatin. Single-cell approaches and human blastoid models reveal that PRC2 activity acts as a chromatin barrier restricting the differentiation of naive cells towards the trophoblast lineage, and inhibiting PRC2 promotes trophoblast fate induction and cavity formation. Our results establish that human naive pluripotent stem cells are not epigenetically unrestricted, but instead possess chromatin mechanisms that oppose the induction of alternative cell fates.

2022-05-06 | PXD028111 | Pride

Induction of trophoblast stem cells from human pluripotent stem cells

Project description:Induction of trophoblast stem cells from human pluripotent stem cells

| PRJNA559732 | ENA

Induction of meiosis by embryonic gonadal somatic cells differentiated from pluripotent stem cells

Project description:Induction of meiosis by embryonic gonadal somatic cells differentiated from pluripotent stem cells

| PRJNA752274 | ENA

Induction of trophoblast stem cells from human pluripotent stem cells [ATAC-seq]

Project description:Induction of trophoblast stem cells from human pluripotent stem cells [ATAC-seq]

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Induction of human trophoblast stem-like cells from primed pluripotent stem cells

Project description:Induction of human trophoblast stem-like cells from primed pluripotent stem cells

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Induction of trophoblast stem cells from human pluripotent stem cells [RNA-seq]

Project description:Induction of trophoblast stem cells from human pluripotent stem cells [RNA-seq]

| PRJNA559736 | ENA

Induction of trophoblast stem cells from human pluripotent stem cells [ChIP-seq]

Project description:Induction of trophoblast stem cells from human pluripotent stem cells [ChIP-seq]

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Investigation of signaling requirements underlying cardiac induction of human pluripotent stem cells

Project description:Investigation of signaling requirements underlying cardiac induction of human pluripotent stem cells

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Transgene directed induction of a human embryo model from pluripotent stem cells

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