Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1195242 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The molecular characteristics of EPSCs have long been debated. While human EPSCs (hEPSCs) resemble eight-cell and morula-stage embryos, mouse EPSCs (mEPSCs) more closely resemble post-implantation epiblasts. This study explores the developmental potential and molecular characteristics of porcine expanded pluripotent stem cells (pEPSCs), uncovering their unique transcriptional heterogeneity and similarities to both morula and post-implantation epiblast stages. By performing single-cell transcriptomic analysis, three distinct subpopulations (C1, C2, and C3) were identified, corresponding to totipotency, naïve pluripotency, and primed pluripotency. The use of dual fluorescence reporter systems highlighted transitions between these states, resembling embryonic development. Key findings reveal a dynamic balance model of LEUTX and OTX2 in regulating pluripotency transition that OTX2 promotes the shift from totipotency to primed pluripotency by promoting pluripotency and lineage-priming genes, while LEUTX enhances totipotency by activating totipotency genes. LEUTX-overexpressing cells demonstrated enhanced developmental potential and stability in vitro. The study established a conserved framework for understanding state transitions mediated by OTX2 and LEUTX, with implications for regenerative medicine, developmental biology, and highlight the potential of pEPSCs in agricultural and biomedical applications.
2025-07-01 | GSE283792 | GEO
Project description:Extended pluripotent or expanded potential stem cells (EPSCs) possess the superior developmental potential to embryonic stem cells (ESCs). However, the molecular underpinning of their in vitro maintenance is not well defined. We comparatively studied transcriptome, chromatin accessibility, active histone modification chromatin marks and relative proteomes of ESCs and the two well-established EPSCs to probe the molecular foundation of their unique developmental potential. We found a great overlap in the transcriptomic and chromatin accessibility profiles and reliance on pluripotency factors Oct4, Sox2, and Nanog for self-renewal between ESCs and EPSCs. Importantly, we identified a subset of genomic, transcriptomic, and proteomic signatures that distinguish EPSCs from ESCs in transcriptional and translational regulation as well as epigenetic and metabolic control. We also identified molecular differences between the two well-established EPSCs. Our study provides a rich resource for dissecting the regulatory network underlying the developmental potency of EPSCs and exploring alternative states of totipotency. This SuperSeries is composed of the SubSeries listed below.
2022-07-19 | GSE201305 | GEO
Project description:Extended pluripotent or expanded potential stem cells (EPSCs) possess the superior developmental potential to embryonic stem cells (ESCs). However, the molecular underpinning of their in vitro maintenance is not well defined. We comparatively studied transcriptome, chromatin accessibility, active histone modification chromatin marks and relative proteomes of ESCs and the two well-established EPSCs to probe the molecular foundation of their unique developmental potential. We found a great overlap in the transcriptomic and chromatin accessibility profiles and reliance on pluripotency factors Oct4, Sox2, and Nanog for self-renewal between ESCs and EPSCs. Importantly, we identified a subset of genomic, transcriptomic, and proteomic signatures that distinguish EPSCs from ESCs in transcriptional and translational regulation as well as epigenetic and metabolic control. We also identified molecular differences between the two well-established EPSCs. Our study provides a rich resource for dissecting the regulatory network underlying the developmental potency of EPSCs and exploring alternative states of totipotency.
2022-07-19 | GSE201302 | GEO
Project description:Extended pluripotent or expanded potential stem cells (EPSCs) possess the superior developmental potential to embryonic stem cells (ESCs). However, the molecular underpinning of their in vitro maintenance is not well defined. We comparatively studied transcriptome, chromatin accessibility, active histone modification chromatin marks and relative proteomes of ESCs and the two well-established EPSCs to probe the molecular foundation of their unique developmental potential. We found a great overlap in the transcriptomic and chromatin accessibility profiles and reliance on pluripotency factors Oct4, Sox2, and Nanog for self-renewal between ESCs and EPSCs. Importantly, we identified a subset of genomic, transcriptomic, and proteomic signatures that distinguish EPSCs from ESCs in transcriptional and translational regulation as well as epigenetic and metabolic control. We also identified molecular differences between the two well-established EPSCs. Our study provides a rich resource for dissecting the regulatory network underlying the developmental potency of EPSCs and exploring alternative states of totipotency.
2022-07-19 | GSE201301 | GEO
Project description:Despite intensive efforts, establishing porcine embryonic stem cells have been challenging. We recently derived mouse expanded potential stem cells (EPSCs) from individual blastomeres by inhibiting the activity of critical molecular pathways that predisposes lineage differentiation in the mouse preimplantation embryo. EPSCs had enriched molecular signatures of blastomeres and possessed the developmental potency to all embryonic and extraembryonic cell lineages. In this study, we report the derivation of porcine EPSC (pEPSC) lines either directly from preimplantation embryos or by reprogramming fetal fibroblasts. Under similar culture conditions, human ESCs and iPSCs can be converted, or somatic cells are directly reprogrammed, to EPSCs (hEPSCs) that display the molecular and functional attributes reminiscent of pEPSCs. Here, we performed Single-Cell RNA-seq experiments to characterise the transcriptional heterogeneity of the EPSCs.
2019-04-01 | E-MTAB-7254 | biostudies-arrayexpress
Project description:Extended pluripotent or expanded potential stem cells (EPSCs) possess the superior developmental potential to embryonic stem cells (ESCs). However, the molecular underpinning of their in vitro maintenance is not well defined. We comparatively studied transcriptome, chromatin accessibility, active histone modification chromatin marks and relative proteomes of ESCs and the two well-established EPSCs to probe the molecular foundation of their unique developmental potential. We found a great overlap in the transcriptomic and chromatin accessibility profiles and reliance on pluripotency factors Oct4, Sox2, and Nanog for self-renewal between ESCs and EPSCs. Importantly, we identified a subset of genomic, transcriptomic, and proteomic signatures that distinguish EPSCs from ESCs in transcriptional and translational regulation as well as epigenetic and metabolic control. We also identified molecular differences between the two well-established EPSCs. Our study provides a rich resource for dissecting the regulatory network underlying the developmental potency of EPSCs and exploring alternative states of totipotency.
2022-07-19 | GSE201303 | GEO
Project description:Despite intensive efforts, establishing porcine embryonic stem cells have been challenging. We recently derived mouse expanded potential stem cells (EPSCs) from individual blastomeres by inhibiting the activity of critical molecular pathways that predisposes lineage differentiation in the mouse preimplantation embryo. EPSCs had enriched molecular signatures of blastomeres and possessed the developmental potency to all embryonic and extraembryonic cell lineages. In this study, we report the derivation of porcine EPSC (pEPSC) lines either directly from preimplantation embryos or by reprogramming fetal fibroblasts. Under similar culture conditions, human ESCs and iPSCs can be converted, or somatic cells are directly reprogrammed, to EPSCs (hEPSCs) that display the molecular and functional attributes reminiscent of pEPSCs. Here, we performed ChIP-seq experiments of H3K4me3 and H3K27me3 to characterise the epigenetic signatures of the EPSCs.
2019-04-01 | E-MTAB-7252 | biostudies-arrayexpress
Project description:Despite intensive efforts, establishing porcine embryonic stem cells have been challenging. We recently derived mouse expanded potential stem cells (EPSCs) from individual blastomeres by inhibiting the activity of critical molecular pathways that predisposes lineage differentiation in the mouse preimplantation embryo. EPSCs had enriched molecular signatures of blastomeres and possessed the developmental potency to all embryonic and extraembryonic cell lineages. In this study, we report the derivation of porcine EPSC (pEPSC) lines either directly from preimplantation embryos or by reprogramming fetal fibroblasts. Under similar culture conditions, human ESCs and iPSCs can be converted, or somatic cells are directly reprogrammed, to EPSCs (hEPSCs) that display the molecular and functional attributes reminiscent of pEPSCs. Here, we performed RNA-seq experiments to characterise the transcriptional signatures of the EPSCs.
2019-04-01 | E-MTAB-7253 | biostudies-arrayexpress
Project description:Cell fate transitions in mammalian stem cell systems have often been associated with transcriptional heterogeneity, however existing data have failed to establish a functional or mechanistic link between the two phenomena. Experiments in unicellular organisms support the notion that transcriptional heterogeneity can be used to facilitate adaptability to environmental changes and have identified conserved chromatin-associated factors that modulate levels of transcriptional noise. By inhibiting the paradigmatic histone acetyl-transferase, and candidate noise modulator, Kat2a (yeast orthologue Gcn5) in mouse embryonic stem cells, we show destabilisation of pluripotency-associated gene regulatory networks through increased global and locus-specific transcriptional heterogeneity. Functionally, network destabilisation associates with reduced pluripotency and accelerated mesendodermal differentiation, with increased probability of transitions into lineage commitment. Thus, we functionally link transcriptional heterogeneity to cell fate transitions through manipulation of the histone acetylation landscape of mouse embryonic stem cells and establish a general paradigm that could be exploited in other normal and malignant stem cell fate transitions.
2019-01-20 | GSE114797 | GEO
Project description:Although extended pluripotent stem cells (EPSCs) have the potential to form both embryonic and extraembryonic lineages, how their transcriptional regulatory mechanism differs from that of embryonic stem cells (ESCs) remains unclear. Here, we discovered that YY1 binds to specific open chromatin regions in EPSCs. Yy1 depletion in EPSCs leads to a gene expression pattern more similar to that of ESCs than control EPSCs. Moreover, Yy1 depletion triggers a series of epigenetic crosstalk activities, including changes in DNA methylation, histone modifications and high-order chromatin structures. Yy1 depletion in EPSCs disrupts the enhancer-promoter (EP) interactions of EPSC-specific genes, including Dnmt3l. Yy1 loss results in DNA hypomethylation and dramatically reduces the enrichment of H3K4me3 and H3K27ac on the promoters of EPSC-specific genes by upregulating the expression of Kdm5c and Hdac6 through facilitating the formation of CCCTC-binding factor (CTCF)-mediated EP interactions surrounding their loci. Furthermore, single-cell RNA sequencing (scRNA-seq) experiments revealed that YY1 is required for the derivation of extraembryonic endoderm (XEN)-like cells from EPSCs in vitro. Together, this study reveals that YY1 functions as a key regulator of multidimensional epigenetic crosstalk associated with extended pluripotency.
2022-04-18 | GSE157720 | GEO