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Transcriptome profile of ACE-expressing embryonic endothelial cells

ABSTRACT: Transcriptome profile of ACE-expressing embryonic endothelial cells

PROVIDER: PRJNA820760 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18505543.fastq.gz	Fastqsanger.gz
	SRR18505544.fastq.gz	Fastqsanger.gz
	SRR18505545.fastq.gz	Fastqsanger.gz
	SRR18505546.fastq.gz	Fastqsanger.gz
	SRR18505547.fastq.gz	Fastqsanger.gz

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Transcriptome profile of ACE-expressing embryonic endothelial cells

Project description:During embryonic development, blood cells emerge from a subset of specialized endothelial cells, named hemogenic endothelial cells (HECs) via a process known as endothelial-to-hematopoietic transition (EHT). A more thorough characterization of HECs is essential to guide the efforts to derive this population from human pluripotent stem cells (hPSCs), a critical step to generate therapeutic blood products in vitro. To identify specific human HEC markers, we performed transcriptomic analysis of 28-32-day human embryos, a developmental stage characterized by active EHT.

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Transcription profiling of mouse embryonic stem cells expressing VE-cadherin (CD144) during endothelial differentiation

Project description:Endothelial differentiation occurs during normal vascular development in the developing embryo. Mouse embryonic stem (ES) cells were used to further define the molecular mechanisms of endothelial differentiation. By flow cytometry a population of VEGF-R2 positive cells was identified as early as 2.5 days after differentiation of ES cells, and a subset of VEGF-R2 + cells, that were CD41+ positive at 3.5 days. A separate population of VEGF-R2+ stem cells expressing the endothelial-specific marker CD144 (VE-cadherin) was also identified at this same time point. Microarray analysis of >45,000 transcripts was performed on RNA obtained from cells expressing VEGF-R2, CD41, and CD144. Experiment Overall Design: We identified four populations of cells; cells expressing VEGF-R2 (day 2.5), CD41 expressing cells (day 3.5), cells expressing CD144 (VE-Cadherin, day 3.5), and cells expressing CD144 (day 6.5). In addition to this, we have also obtained the negative control cells at each time such as VEGF-R2 (day 2.5) negative, CD41 negative (day 3.5), CD144 negative (VE-Cadherin, day 3.5), and negative CD144 (day 6.5). RNA for the microarray experiments were obtained in duplicate from two separately conducted experiments using the murine embryonic stem cells..

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Gene expression analysis of embryonic stem cells expressing VE-cadherin (CD144) during endothelial differentiation

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RNA-Sequencing Quantitative Analysis of Mice Wild Type and Tg-ACE (ACE overexpression) Macrophages

Project description:In this study we compared transcriptome profiling (RNA-seq) in wild type vs. ACE overexpressiong Tg-ACE macrophages to identify differential gene expression/pathways.

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Transient ACE Inhibition Suppresses Future Fibrogenic Capacity and Heterogeneity of Cardiac Fibroblast Subpopulations

Project description:Transient angiotensin converting enzyme (ACE) inhibition in spontaneously hypertensive rats (SHR) protects against future injury-induced cardiac inflammation, fibrosis, and dysfunction. Here, we used single cell RNA sequencing (scRNA-Seq) to test the hypothesis that transient ACE inhibitor treatment would induce a persistent shift in hypertensive cardiac fibroblast subpopulations. Adult male SHRs (11 weeks old) were treated for 2 weeks with an ACE inhibitor, enalapril (30mg/kg/day, p.o.), or water (control) followed by a 2-week washout period (n=7/group). Cardiac fibroblasts were isolated from the left ventricle and subjected to scRNA-Seq. Nine clusters of fibroblasts (numbered 0-8) were identified with 98% of cells clustering into subsets 0-6. Transient treatment produced significant changes within and across clusters. Cluster 1 depicted the highly fibrogenic gene profile, with cluster 6 serving as a gateway to cluster 1. Transient ACE inhibition depleted the gateway and expanded cluster 0, which was the least fibrogenic profile. Moreover, within cluster 1 fibroblasts, ACE inhibition reduced expression of individual fibrosis genes (e.g. COL1A1, COL3A1, and FN1; all p<0.05). Clusters 2-5 reflected proliferative, moderately fibrogenic, translationally active, and lowly inflammatory subsets of fibroblasts, all of which exhibit attenuated fibrogenic gene expression after transient ACE inhibition. In conclusion, transient ACE inhibition shifts cardiac fibroblast subpopulations and degree of activation resulting in an overall reduced fibrogenic phenotype.

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Expression data of the endothelial-to-hematopoietic transition in E8.5 concepti

Project description:During development a specialised subset of endothelial cells, the haemogenic endothelium, undergo an endothelial-to-haematopoietic transition. This process critically involves the transcription factor Runx1. Here we have isolated a specific subpopulation of endothelial cells using a Runx1 enhancer-reporter transgenic mouse line (23GFP). We have compared the gene expression profile of this population to non-23GFP expressing endothelial cells and CD41 expressing haematopoietic progenitor cells to assess whether 23GFP expression marks a biologically distinct subset of endothelium. We used affymetrix microarrays to detail the global programme of gene expression underlying the different populations and identified a distinct expression profile of the 23GFP expressing endothelium. 23GFP transgenic mouse embryos were dissected free of the ectoplacental cone at embryonic day E8.5, pooled, and sorted into 23GFP- and 23GFP+ endothelial (VE-Cad+ Ter119- CD45- CD41-) and CD41+ haematopoietic cells (VE-Cad+ Ter119-CD45-CD41+23GFP+) cells by FACS. Triplicate samples for each cell population were analysed. cDNA synthesis, fragmentation, and hybridisation were performed by the Stanford Protein and Nucleic Acid Facility.

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