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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (ATAC-Seq)

ABSTRACT: Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (ATAC-Seq)

PROVIDER: PRJNA1031237 | ENA |

REPOSITORIES: ENA

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (scRNA-Seq)

Project description:Wnt signalling is a critical determinant of cell lineage development. This study used Wnt dose-dependent induction programs to gain insights into molecular regulation of stem cell differentiation. We performed single cell RNA-sequencing of cells responding to a dose-escalation protocol with Wnt agonist CHIR-99021 during the exit from pluripotency to identify cell types and genetic activity driven by Wnt stimulation. Results of activated gene sets and cell types were then used to build a multiple regression model that predicts the efficiency of cardiomyocyte differentiation. Cross-referencing Wnt-associated gene expression profiles to the Connectivity Map database, we identified a novel property of the small molecule drug, tranilast. We found that tranilast synergistically activates Wnt signalling to promote cardiac lineage differentiation which we validate in vitro and in vivo. Our study provides an integrated workflow that links experimental datasets, prediction models and small molecule databases to identify novel drug-like compounds that control cell differentiation.

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (RNA-Seq)

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation

Project description:Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (RNA-Seq)

Project description:Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (RNA-Seq)

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (scRNA-Seq)

Project description:Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation (scRNA-Seq)

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Dose escalation of Wnt stimulation during the exit from pluripotency identifies tranilast as a small molecule regulator of cardiac mesoderm differentiation

Project description:This SuperSeries is composed of the SubSeries listed below.

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TBXT dose sensitivity and the decoupling of mesoderm specification from EMT progression in 2D human gastruloids

Project description:In the nascent mesoderm, levels of Brachyury (TBXT) expression must be precisely regulated to ensure cells exit the primitive streak and pattern the anterior-posterior axis, but how this varying dosage informs morphogenesis is not well understood. In this study, we define the transcriptional consequences of TBXT dose during early gastrulation using human induced pluripotent stem cell (hiPSC)-based models of early gastrulation and mesoderm differentiation. Multiomic single-nucleus RNA and single-nucleus ATAC sequencing reveal that TBXT is required for the temporal progression of epithelial-to-mesenchymal transition (EMT) in a dose-dependent manner and that this transition occurs independently of the acquisition of mesodermal identity. These results demonstrate that EMT can be decoupled from mesoderm development in the early gastrula and shed light on the mechanisms underlying human embryogenesis.

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Tbx3 Controls Dppa3 Levels and Exit from Pluripotency toward Mesoderm.

Project description:Tbx3, a member of the T-box family, plays important roles in development, stem cells, nuclear reprogramming, and cancer. Loss of Tbx3 induces differentiation in mouse embryonic stem cells (mESCs). However, we show that mESCs exist in an alternate stable pluripotent state in the absence of Tbx3. In-depth transcriptome analysis of this mESC state reveals Dppa3 as a direct downstream target of Tbx3. Also, Tbx3 facilitates the cell fate transition from pluripotent cells to mesoderm progenitors by directly repressing Wnt pathway members required for differentiation. Wnt signaling regulates differentiation of mESCs into mesoderm progenitors and helps to maintain a naive pluripotent state. We show that Tbx3, a downstream target of Wnt signaling, fine tunes these divergent roles of Wnt signaling in mESCs. In conclusion, we identify a signaling-TF axis that controls the exit of mESCs from a self-renewing pluripotent state toward mesoderm differentiation.

| S-EPMC4618439 | biostudies-literature

Tbx3 controls Dppa3 levels to regulate exit from pluripotency towards mesodermal lineage

Project description:Tbx3, a member of the T-box family, plays important roles in development, stem cells, nuclear reprogramming and cancer. Loss of Tbx3 induces differentiation in mouse embryonic stem cells (mESCs). However, we show that mESCs exist in an alternate stable pluripotent state in the absence of Tbx3. In-depth transcriptome analysis of this mESC state reveals Dppa3 as a direct downstream target of Tbx3. Also Tbx3 facilitates the cell fate transition from pluripotent cells to mesoderm progenitors by directly repressing Wnt pathway members required for differentiation. Wnt signaling regulates differentiation of mESCs into mesoderm progenitors and helps maintain a naïve pluripotent state. We show that Tbx3, a downstream target of Wnt signaling, fine-tunes these divergent roles of Wnt signaling in mESCs. In conclusion, we identify a signaling-TF axis that controls the exit of mESCs from a self-renewing pluripotent state towards mesoderm differentiation. ChIPSeq and RNASeq (population and single cell) was performed on the indicated cell lines. Replicates are indicated as needed. The mm9 genome assembly was used. For single cell mRNA-Seq preparation, SSEA1+DAPI- mESCs were sorted and collected.

2015-07-21 | E-GEOD-60066 | biostudies-arrayexpress

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