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Next Generation Sequencing analysis of control and serotonin, pergolide and dexfenfluramine treated tricuspid valves

ABSTRACT: Next Generation Sequencing analysis of control and serotonin, pergolide and dexfenfluramine treated tricuspid valves

PROVIDER: PRJNA449943 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6995030.fastq.gz	Fastqsanger.gz
	SRR6995040.fastq.gz	Fastqsanger.gz
	SRR6995021.fastq.gz	Fastqsanger.gz
	SRR6995031.fastq.gz	Fastqsanger.gz
	SRR6995022.fastq.gz	Fastqsanger.gz

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Next Generation Sequencing analysis of control and serotonin, pergolide and dexfenfluramine treated tricuspid valves

Project description:Identify biological processes leading to heart valve disease upon long-term oral administration of serotonin, pergolide and dexfenfluramine Transcriptome profiling of tricuspid valves isolated from the drug treateds rabbit groups and compared to control rabbits using RNA sequencing Distinct patterns of differentially expressed genes (DEGs) highlight common and specific biological processes of drug treatment in tricuspid valves

2020-06-29 | GSE113082 | GEO

Microarray-based gene expression on human aortic valves

Project description:Aortic valves are collected from patients with severe aortic valve stenosis undergoing aortic valve replacement at the Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec City, Canada. From this biobank collection, transcriptomic analyses from 240 aortic valves were performed. All valves were tricuspid and had a fibro-calcific remodeling score of 3 or 4. RNA was extracted from valve leaflets and gene expression evaluated using the Illumina HumanHT-12 v4 Expression BeadChip. The main objective of this study was to perform a large-scale expression quantitative trait loci (eQTL) mapping study on human aortic valves.

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Cellular landscapes of non-diseased human cardiac valves from end-stage heart failure-explanted heart

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Gene expression profile of calcified bicuspid, tricuspid and normal human aortic valves

Project description:The objective of this study was to identify genes differentially expressed between calcified bicuspid aortic valves (BAV) and tricuspid valves with (TAVc) and without (TAVn) aortic valve stenosis. Ten human BAV and nine TAVc were collected from male who underwent primary aortic valve replacement. Eight TAVn were obtained from male who underwent heart transplantation. mRNA levels were measured using Illumina HumanHT-12 v4 Expression BeadChip and compared between valve groups.

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Differential Requirement for DICER1 Activity during the Development of Mitral and Tricuspid Vlaves

Project description:Mitral and tricuspid valves are essential for unidirectional blood flow in the heart. They are derived from similar cell sources, and yet congenital dysplasia affecting both valves is clinically rare, suggesting the presence of differential regulatory mechanisms underlying their development. We specifically inactivated Dicer1 in the endocardium during cardiogenesis and found that Dicer1-deletion caused congenital mitral valve stenosis and regurgitation, while it had no impact on other valves. We showed that hyperplastic mitral valves were caused by abnormal condensation and extracellular matrix (ECM) remodeling. Our single-cell RNA Sequencing analysis revealed impaired maturation of mesenchymal cells and abnormal expression of ECM genes in mutant mitral valves. Furthermore, expression of a set of miRNAs that target ECM genes was significantly lower in tricuspid valves compared to mitral valves, consistent with the idea that the miRNAs are differentially required for mitral and tricuspid valve development. We thus reveal miRNA-mediated gene regulation as a novel molecular mechanism that differentially regulates mitral and tricuspid valve development, thereby enhancing our understanding of the non-association of inborn mitral and tricuspid dysplasia observed clinically.

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RNA Expression Profile of Calcified Bicuspid, Tricuspid and Normal Human Aortic Valves by RNA Sequencing [TAV]

Project description:Purpose: The molecular mechanisms leading to premature development of aortic valve stenosis (AS) in individuals with a bicuspid aortic valve (BAV) are unknown. The objective of this study was to identify genes differentially expressed between calcified BAV and tricuspid valves with (TAVc) and without (TAVn) calcification using RNA sequencing (RNA-Seq). Methods: Ten human calcified BAV and nine TAVc were collected from men who underwent aortic valve replacement. Eight TAVn were obtained from men who underwent heart transplantation. mRNA levels were measured using the Illumina HiSeq 2000 system. Reads were aligned with TopHat. Cuffdiff, DESeq, edgeR, and SAMSeq were used to compare gene expression. Genes with adjusted P < 0.05 in the four methods were called differentially expressed. Pathway analysis was performed with IPA. Results: Two genes were up-regulated and none were down-regulated in BAV compared to TAVc. There were 462 genes up-regulated and 282 down-regulated in BAV compared to TAVn. Compared to TAVn, 329 genes were up- and 170 were down-regulated in TAVc. Conclusions: This is the first transcriptome study on calcified and normal aortic valves using RNA-Seq. BAV and TAVc have a highly similar expression profile. These results contribute to our molecular understanding of AS and the identification of new therapeutic targets that are urgently needed to prevent, slow the development or treat AS in patients with bicuspid and tricuspid valves.

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RNA Expression Profile of Calcified Bicuspid, Tricuspid and Normal Human Aortic Valves by RNA Sequencing [BAV]

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Next generation sequence analysis

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Expression data from static and cyclic stretched porcine aortic heart valves

Project description:We explored the hypothesis that Serotonin (5HT) receptor signaling, that can be enhanced with 5HT transporter blockade with Fluoxetine (Fluox), in the aortic valve may vary based upon the biomechanical activity of the aortic valve leaflet. We used Affymetrix microarrays to study gene expression profiling of Porcine Aortic Valves (PAV) incubated under organ culture conditions for 24 hours in either a static state or with 10% cyclic stretch, simulating physiologic leaflet motion. PAV in the bioreactor with or without stretch were exposed to 5HT along or the combination 5HT plus Fluox. Fresh porcine aortic valves were obtained from a local abattoir. The three leaflets were excised from each valve and a rectangular section of tissue 15x10 mm was isolated from the central region of each valve cusp. These samples were randomized and assigned to one of four groups. The experimental groups were: 1) Static conditions with no agents added; 2) Cyclic stretch conditions with no agents added; 3) Static conditions with 5HT plus Fluox added; and 4) Cyclic stretch conditions with 5HT plus Fluox added.

2010-05-27 | E-GEOD-21663 | biostudies-arrayexpress

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