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NOTO directs hIPSC-derived mesendoderm progenitors to a notochordal fate

ABSTRACT: NOTO transcription factor directs human induced pluripotent stem cell-derived mesendoderm progenitors to a notochordal fate

PROVIDER: PRJEB36475 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR3852350.fastq.gz	Fastqsanger.gz
	ERR3852360.fastq.gz	Fastqsanger.gz
	ERR3852370.fastq.gz	Fastqsanger.gz
	ERR3852351.fastq.gz	Fastqsanger.gz
	ERR3852361.fastq.gz	Fastqsanger.gz

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TBX3 Directs Cell-Fate Decision toward Mesendoderm.

Project description:Cell-fate decisions and pluripotency are dependent on networks of key transcriptional regulators. Recent reports demonstrated additional functions of pluripotency-associated factors during early lineage commitment. The T-box transcription factor TBX3 has been implicated in regulating embryonic stem cell self-renewal and cardiogenesis. Here, we show that TBX3 is dynamically expressed during specification of the mesendoderm lineages in differentiating embryonic stem cells (ESCs) in vitro and in developing mouse and Xenopus embryos in vivo. Forced TBX3 expression in ESCs promotes mesendoderm specification by directly activating key lineage specification factors and indirectly by enhancing paracrine Nodal/Smad2 signaling. TBX3 loss-of-function analyses in the Xenopus underline its requirement for mesendoderm lineage commitment. Moreover, we uncovered a functional redundancy between TBX3 and Tbx2 during Xenopus gastrulation. Taken together, we define further facets of TBX3 actions and map TBX3 as an upstream regulator of the mesendoderm transcriptional program during gastrulation.

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Retrospective analysis of mesendoderm progenitors that give rise to cardiac microtissues, multilineage and gut organoids

Project description:Bulk RNA-sequencing of the mesendoderm progenitors before aggregation. Mesendoderm progenitors aggregates can lead to the formation of cardiac microtissues, multilineage and gut organoids in different batches. Despite batch-to-batch differences in spheroid phenotype, all spheroids (n>200) within a single batch derived from the same initial differentiation of progenitor cells manifested identical morphologies and cellularity.

2021-06-15 | GSE153071 | GEO

NOTO Transcription Factor Directs Human Induced Pluripotent Stem Cell-Derived Mesendoderm Progenitors to a Notochordal Fate.

Project description:The founder cells of the Nucleus pulposus, the centre of the intervertebral disc, originate in the embryonic notochord. After birth, mature notochordal cells (NC) are identified as key regulators of disc homeostasis. Better understanding of their biology has great potential in delaying the onset of disc degeneration or as a regenerative-cell source for disc repair. Using human pluripotent stem cells, we developed a two-step method to generate a stable NC-like population with a distinct molecular signature. Time-course analysis of lineage-specific markers shows that WNT pathway activation and transfection of the notochord-related transcription factor NOTO are sufficient to induce high levels of mesendoderm progenitors and favour their commitment toward the notochordal lineage instead of paraxial and lateral mesodermal or endodermal lineages. This study results in the identification of NOTO-regulated genes including some that are found expressed in human healthy disc tissue and highlights NOTO function in coordinating the gene network to human notochord differentiation.

| S-EPMC7072849 | biostudies-literature

Mesendoderm induction

Project description:ES cells are differentiated into mesenderm cell linage by Activin A treatment. During this differentaition, gene expression profile of ES cells, day 4 mesendoderm cell, day 5 mesendoderm cells and mesoderm cells are examined.

2009-06-12 | E-MEXP-1672 | biostudies-arrayexpress

RNAseq and ChIPseq on Mouse Embryonic Stem Cells and Sorted Mesendoderm Progenitor Cells [ChIP-seq]

Project description:We mapped the enhancer and long non-coding transcriptional landscape during mesendoderm specification. Mesendodermal progenitors were sorted from differentiating ESCs according to Eomes expression. Enhancer usage was coordinated with mesendoderm-specific expression of key lineage-determining transcription factors. We demonstrated that many of these enhancers are associated with the expression of lncRNAs.

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RNAseq and ChIPseq on Mouse Embryonic Stem Cells and Sorted Mesendoderm Progenitor Cells [RNA-seq]

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Geminin represses mesendoderm cell fate acquisition in embryoid bodies

Project description:Geminin is a small nucleoprotein that neuralizes ectoderm in the Xenopus embryo. Geminin promotes neural fate acquisition of mouse embryonic stem cells: Geminin knockdown during neural fate acquisition decreased expression of neural precursor cell markers (Pax6, Sox1), while increasing expression of Pitx2, Lefty1 and Cited2, genes involved in formation of the mouse node. Here we differentiated mouse embryonic stem cells into embryoid bodies to study Geminin's ability to repress primitive streak mesendoderm fate acquisition. We used microarrays to define the sets of genes that are regulated by Geminin during cell fate acquisition in embryoid bodies, using Dox-inducible Geminin knockdown or overexpression mouse embryonic stem cell lines. ES cell lines for Geminin over-expression (GemOE) were treated without or with Dox from day 3 to day 5 of EB differentiation and were collected on days 4 or 5 for microarray analysis. Gem knockdown (KD) ES cell lines were treated without or with Dox from day 0 to day 4 of EB differentiation and were collected on day 4 for microarray analysis.

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Geminin represses mesendoderm cell fate acquisition in embryoid bodies

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Retrospective analysis of mesendoderm progenitors that give rise to cardiac microtissues, multilineage and gut organoids

Project description:Retrospective analysis of mesendoderm progenitors that give rise to cardiac microtissues, multilineage and gut organoids

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p53 coordinates Wnt and TGF-β inputs on mesendoderm differentiation genes

Project description:The TGF-β superfamily member Nodal triggers mesendoderm differentiation in embryonic stem (ES) cells. This transition however requires cooperating Wnt signaling inputs. Here we report that p53, a powerful tumor suppressor in adult tissues, orchestrates this cooperation. We show that p53, which is released from inhibition as mouse ES cells exit from pluripotency, acts as a direct inducer of Wnt3 expression. Wnt-activated Tcf3 then converges with Nodal-activated Smad transcriptional complexes on mesendoderm specification super-enhancers. p53 and its homolog p73 act redundantly in Wnt induction. When p53 and p73 are depleted, the ES cells fail to secrete autocrine Wnt ligands, Tcf and Nodal-activated Smads fail to bind to mesendoderm gene enhancers, and the cells adopt ectoderm rather than mesendoderm identity. Enforced Wnt3 expression or addition of Wnt3a rescues mesendoderm differentiation in p53/p73-depleted ES cells. Thus, independently of their established role as tumor suppressors that guard genome integrity in mature cells, p53 and p73 serve a primordial role in ES cell differentiation by driving a cooperation of Wnt and TGF-β transcriptional inputs on mesendoderm identity gene enhancers.

2017-01-06 | GSE70486 | GEO

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