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Single cell transcriptional profiles of endothelial cells sorted from the hearts with ablation of Wnt/beta-catenin signaling activating cardiomyocytes and without ablation [scRNA-seq]

ABSTRACT: Single cell transcriptional profiles of endothelial cells sorted from the hearts with ablation of Wnt/beta-catenin signaling activating cardiomyocytes and without ablation [scRNA-seq]

PROVIDER: PRJNA926357 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23190058_1.fastq.gz	Fastqsanger.gz
	SRR23190058_2.fastq.gz	Fastqsanger.gz
	SRR23190059_1.fastq.gz	Fastqsanger.gz
	SRR23190059_2.fastq.gz	Fastqsanger.gz
	SRR23190060_1.fastq.gz	Fastqsanger.gz

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Single cell transcriptional profiles of endothelial cells sorted from the hearts with ablation of Wnt/beta-catenin signaling activating cardiomyocytes and without ablation [scRNA-seq]

Project description:To understand how Wnt/β-catenin signaling-activated cardiomyocytes (β-cat ON CMs) promote coronary vessel development, we performed single-cell RNA sequencing of endothelial cells (ECs) sorted from the hearts ablated β-cat ON CMs and those from control hearts, respectively. Our analyses indicated that β-cat ON CMs regulates coronary vessel development by promoting arterialization, a step in the transition of endocardial ECs to coronary ECs.

2024-08-23 | GSE223461 | GEO

Cardiac-specific β-catenin deletion dysregulates energetic metabolism and mitochondrial function in perinatal cardiomyocytes

Project description:β-Catenin signaling pathway regulates cardiomyocytes proliferation and differentiation, though its involvement in metabolic regulation of cardiomyocytes remains unknown. We used one-day-old mice with cardiac-specific knockout of β-catenin and neonatal rat ventricular myocytes treated with β-catenin inhibitor to investigate the role of β-catenin metabolism regulation in perinatal cardiomyocytes. Transcriptomics of perinatal β-catenin-ablated hearts revealed a dramatic shift in the expression of genes involved in metabolic processes. Further analysis indicated an inhibition of lipolysis and glycolysis in both in vitro and in vivo models. Finally, we showed that β-catenin deficiency leads to mitochondria dysfunction via the downregulation of Sirt1/PGC-1α pathway. We conclude that cardiac-specific β-catenin ablation disrupts the energy substrate shift that is essential for postnatal heart maturation, leading to perinatal lethality of homozygous β-catenin knockout mice.

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single cell transcriptomic analysis of embyronic hearts with fibroblast ablation

Project description:single cell transcriptomic analysis of embyronic hearts with fibroblast ablation

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Increased expression of NKG2D ligands in BrafV600E-driven thyroid cancer cells with β-catenin ablation

Project description:BRAFV600E mutation frequently occurs in papillary thyroid cancer (PTC). β-catenin, encoded by CTNNB1, is a key downstream component of canonical Wnt signaling pathway and is often overexpressed in PTC. BRAFV600E-driven PTC tumors rely on Wnt/β-catenin signaling to sustain their growth and progression. In the present study, we investigated the tumorigenicity of thyroid cancer cells derived from BrafV600E PTC mice after Ctnnb1 ablation (BVE-Ctnnb1null). Remarkably, the tumorigenic potential of BVE-Ctnnb1null tumor cells was lost in nude mice. RNA-Seq analysis of the BVE-Ctnnb1null tumor cells showed up-regulation of NKG2D receptor activating ligands (H60a, H60b, H60c, Raet1a, Raet1b, Raet1c, Raet1d, Raet1e and Ulbp1) and down-regulation of inhibitory MHC class I molecules H-2L and H-2K2 in the BVE-Ctnnb1null tumor cells. In vitro cytotoxicity assay demonstrated that BVE-Ctnnb1wt tumor cells were resistant to NK cell-mediated cytotoxicity whereas BVE-Ctnnb1null tumor cells were sensitive to NK cell-mediated killing. Furthermore, overexpression of any one of these NKG2D ligands in the BVE-Ctnnb1wt cell line resulted in significant reduction of tumor growth in nude mice. Our results indicate that active β-catenin signaling inhibits NK cell-mediated immune response against thyroid cancer cells. Targeting β-catenin signaling pathway may have significant therapeutic benefit for thyroid cancer by not only inhibiting tumor growth but also enhancing host immune surveillance.

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Consequences of fibroblast ablation in adult murine hearts

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RNA-sequencing of unstressed and pressure-overloaded C57 mouse hearts with single or combined ablation of PKCdelta and PKCepsilon

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Expression data from Ad-β-catenin-GFP or Ad-GFP infected cardiomyocytes

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