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Zfp296 knockout enhances chromatin accessibility and induces a unique state of pluripotency in embryonic stem cells [RNA-seq-1]

ABSTRACT: Zfp296-KO ESCs grew as flat colonies and could not form teratomas, but could contribute to germline-competent chimeric mice. To analyze the molecular mechanisms causing these unique phenotypes, we compared gene expression profiles among wild-type (WT), Zfp296-KO, and Zfp296-rescue ESCs by RNA-seq.

ORGANISM(S): Mus musculus

PROVIDER: GSE231392 | GEO | 2023/07/24

REPOSITORIES: GEO

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Zfp296 knockout enhances chromatin accessibility and induces a unique state of pluripotency in embryonic stem cells [RNA-seq-2]

Project description:Zfp296-KO ESCs grew as flat colonies and could not form teratomas, but could contribute to germline-competent chimeric mice. To analyze the molecular mechanisms causing these unique phenotypes, we compared gene expression profiles among wild-type (WT), Zfp296-KO, and Zfp296-rescue ESCs by RNA-sequencing.

2023-07-24 | GSE231393 | GEO

Zfp296 knockout enhances chromatin accessibility and induces a unique state of pluripotency in embryonic stem cells [ChIP-seq]

Project description:Zfp296 KO profoundly affects the gene expression patterns of ESCs. ZFP296 belongs to the C2H2-type ZF family. To map the ZFP296 binding sites across the whole genome, chromatin immunoprecipitation DNA-sequencing (ChIP-seq) was performed.

2023-07-24 | GSE231411 | GEO

NuRD-interacting protein ZFP296 regulates genome-wide NuRD localization and differentiation of mouse embryonic stem cells

Project description:The Nucleosome Remodeling and Deacetylase (NuRD) complex plays an important role in gene expression regulation, stem cell self-renewal, and lineage commitment. Yet little is known about the dynamics of NuRD during cellular differentiation. Here, we study these dynamics using genome-wide profiling and quantitative interaction proteomics in mouse embryonic stem cells (ESCs) and neural progenitor cells (NPCs). The genomic targets of NuRD are highly dynamic during differentiation, with most binding occurring at cell-type specific promoters and enhancers. We identify ZFP296 as a novel, ESC-specific NuRD interactor that also interacts with the SIN3A complex. ChIP-sequencing in Zfp296 knockout (KO) ESCs reveals decreased NuRD binding both genome-wide and at ZFP296 binding sites, although this has little effect on the transcriptome. Nevertheless, Zfp296 KO ESCs exhibit delayed induction of lineage-specific markers upon differentiation to embryoid bodies. In summary, we identify an ESC-specific NuRD interacting protein which regulates genome-wide NuRD binding and cellular differentiation.

2018-10-11 | PXD010512 | Pride

NuRD-interacting protein ZFP296 regulates genome-wide NuRD localization and differentiation of mouse embryonic stem cells (RNA-seq)

2018-10-10 | GSE117288 | GEO

NuRD-interacting protein ZFP296 regulates genome-wide NuRD localization and differentiation of mouse embryonic stem cells (ChIP-seq)

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Zfp296 knockout enhances chromatin accessibility and induces a unique state of pluripotency in embryonic stem cells [ATAC-seq]

Project description:To explore the molecular mechanism underlying transcriptional repression by ZFP296, we performed genome-wide analysis of chromatin accessibility (ATAC-seq).

2023-07-24 | GSE231410 | GEO

TP53 promotes lineage commitment of human embryonic stem cells through ciliogenesis and sonic hedgehog signaling [RNA-Seq]

Project description:H9 WT ESCs or TP53 KO (Clone 1) ESCs were injected subcutaneously into mice for teratoma formation. 6-8 weeks later, teratomas were isolated and total RNA was purified. TruSeq library preparation kit from Illumina was used to make libraries for RNA-Seq. NGS sequencing on Illumina NextSeq 500 was performed and data was analyzed to determine changes in transcriptome between WT and TP53 KO teratoma cells.

2022-02-16 | GSE168678 | GEO

Comparison of RNA sequencing profiles in domed and flat colonies of ocular surface epithelial stem cells induced from human pluripotent stem cell

Project description:RNA-seq analysis revealed that genes associated with lacrimal gland development, such as BARX2, SIX1, SIX2, SOX9, and KRT15, were upregulated in domed colonies compared to flat colonies. In flat colonies, mucosal epithelial keratin, KRT13 and the corneal epithelial progenitor cell markers, CDH2 and NGFR were up-regulated, along with YAP1 and its downstream genes, CTGF and CYR61, which are involved in epithelial development.

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Nanotopography guides morphology and spatial patterning of induced pluripotent stem cell colonies

Project description:The role of topographic cues in controlling commitment of induced pluripotent stem cells (iPSCs) is largely unknown. Here we demonstrate that groove-ridge nanostructures induce the elongation of iPSC colonies, guide the orientation of apical actin fibers and direct the polarity of cell division. Elongation of iPSC colonies impacts also on the intrinsic molecular patterning which seems to be orchestrated starting from the rim of the colonies. We followed the hypothesis that nanotopography directly modulates the transcriptional program of iPSC, further to guiding the overall spatial organization of the colonies. Single iPSC were seeded on flat (PI flat) and nanostructured polyimide (PI 650) and gene expression profiles were analyzed after three days. No significant differences were observed when cells were kept under culture conditions that sustained pluripotency. Then, we analyzed gene expression changes upon two weeks of multi-lineage differentiation. Many genes revealed significant expression changes in the course of differentiation and this was more pronounced on PI flat as compared to PI 650. Comparison of iPSC that were either differentiated on flat or nanostructured biomaterials revealed differential expression of several genes. Noteworthy, among significantly regulated genes, the biggest fold change on PI 650 versus PI flat after differentiation was observed in ANKRD1, which is one of the best readouts of YAP/TAZ activity. Our study suggests that nanotopography impacts on orientation and organization of iPSC colonies and highlight a possible interaction between mechanosensors and mechanotransducers.

2017-09-18 | GSE84848 | GEO

Derivation of authentic porcine embryonic stem cells using defined culture conditions

Project description:Pig embryonic stem cells (ESCs) have been considered as an important candidate for preclinical researches on human therapy. However, the lack of understanding of pig pluripotent networks has hampered establishment of authentic pig ESCs. Here, we report that FGF2, ACTVIN, and WNT signaling is essential for maintaining pig pluripotency in vitro. Pig ESC lines derived by stimulating three signlaings formed colonies of flattened monolayer morphology. Newly derived ESCs were stably maintained over an extended period, and were capable of forming teratomas comprising three germ layers. Immunostaining showed that the stem cells expressed pluripotency markers including OCT4, SOX2, NANOG, SSEA1, and SSEA4. Transcriptome analysis showed that pig ESCs were developmentally similar to late epiblasts of preimplantation embryos and in terms of biological functions resembled human rather than mouse ESCs. However, the pig ESCs had distinct features such as coexpression of SSEA1 and SSEA4, two active X chromosomes, and a unique transcriptional pattern. In conclusion, we successfully derived authentic pig ESCs using novel cell culture conditions. Our findings will facilitate both the development of large animal models for human stem cell therapy and the generation of pluripotent stem cells from other domestic animals for agricultural use.

2019-07-08 | GSE120031 | GEO

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