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Expression data from aortic smooth muscle cells (AoSMC) and myofibroblasts (FB) isolated respectively from the ascending aortas and the aortic valves of bicuspid (BAV) and tricuspid aortic valve (TAV) patients

ABSTRACT: AoSMC and FB were cultured and exposed to transforming growth factor beta1 (TGFb1) prior to the exon array analysis The objective was to study the TGFb responsivness, at the gene expression level, in AoSMC and FB form BAV and TAV patients

ORGANISM(S): Homo sapiens

PROVIDER: GSE61128 | GEO | 2015/01/15

SECONDARY ACCESSION(S): PRJNA260294

REPOSITORIES: GEO

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Expression data from aortic smooth muscle cells (AoSMC) and myofibroblasts (FB) isolated respectively from the ascending aortas and the aortic valves of bicuspid (BAV) and tricuspid aortic valve (TAV) patients

Project description:AoSMC and FB were cultured and exposed to transforming growth factor beta1 (TGFb1) prior to the exon array analysis The objective was to study the TGFb responsivness, at the gene expression level, in AoSMC and FB form BAV and TAV patients 54 samples in total were generated from biopsies obtained from 23 different individuals. We performed paired analyses to compare the un-treated (c) versus the TGFb1 (t1) treated cells, for each patient

2015-01-15 | E-GEOD-61128 | biostudies-arrayexpress

Gene expression in aortic aneurysms associated with tricuspid and bicuspid valves

2007-06-28 | GSE5180 | GEO

Transcription profiling of human patients with aortic aneurysms associated with tricuspid and bicuspid valves

Project description:Patients with bicuspid aortic valve (BAV) have increased risk of thoracic ascending aortic aneurysm (AscAA) and dissection compared to those with a normal tricuspid aortic valve (TAV). The present study was undertaken to evaluate whether differences in gene expression exist in aortas from BAV and TAV patients with AscAA. Experiment Overall Design: Aneurysmal tissue of ascending aorta was collected from 13 patients with bicuspid aortic valve (BAV) and 12 patients with tricuspid aortic valve (TAV). Patients were selected on the basis of aortic diameter, age and other disease conditions. Patients with giant cell aortitis, cardiovascular abnormalities, inherited connective tissue disorders such as Marfan and Ehlers-Danlos syndrome were excluded from the study. RNA was extracted using Invitrogen RNA extraction kit and shown to be of adequate quality before application to Affymetrix microarray U133A gene chips probing for over 16,000 genes per chip. Two different methods of data analysis were performed: a linear model and GeneSpring.

2009-02-07 | E-GEOD-5180 | biostudies-arrayexpress

MiRNA microarray analysis of human bicuspid and tricuspid aortic valve leaflet tissues

2011-06-24 | GSE30197 | GEO

MiRNA microarray analysis of human bicuspid and tricuspid aortic valve leaflet tissues

Project description:Bicuspid aortic valve (BAV) is a common congenital cardiac anomaly, with an estimated incidence of 1-2%. It is responsible for the greatest burden of aortic valve disease in patients younger than 70 years in North America. We performed microRNA profiling in end-stage valve leaflets with BAV and TAV. Patients undergoing elective aortic valve replacement for aortic stenosis at St. Michael’s Hospital, University of Toronto, between June 2010 and June 2011 were enrolled. Aortic valve leaflets were obtained intraoperatively from patients with congenital bicuspid (BAV; N=10) and tricuspid aortic valves (TAV; N=10) at the time of valve replacement. Leaflets were flash frozen in liquid nitrogen. MiRNA was isolated using the miRNeasy kit (Qiagen, Hilden, Germany) according to the manufacturer`s instructions. For miRNA microarray analysis, total RNA was directly labeled with biotin and hybridized to the GenoExplorer microRNA human array containing 1583 human miRNA probes (Genosensor, Tempe, AZ) and the fluorescent signals were then scanned using a GenePix 4000b Biochip. The average of 3 mean fluorescence signal intensities for each miRNA probe was normalized to that for tRNAmet. Precursor miRNAs detected at 2-fold greater than background were considered to be expressed. Data were analyzed with GenePix 5.0 software, provided by GenoSensor Corp.

2011-06-24 | E-GEOD-30197 | biostudies-arrayexpress

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.

2016-09-22 | GSE83453 | GEO

Biomechanics of Aortic Dissection: A Comparison of Aortas Associated With Bicuspid and Tricuspid Aortic Valves.

Project description: Not available

| S-EPMC7792273 | biostudies-literature

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.

2016-09-22 | GSE76717 | GEO

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

2016-09-22 | GSE76712 | GEO

The extracellular matrix landscape identifies different etiologies behind bicuspid and tricuspid aortic valve degeneration

Project description:The molecular basis of aortic valve degeneration (AVD) is unclear. The extracellular matrix (ECM) of the valve is in dynamic reciprocity with its surrounding microenvironment and contains molecular traits of the pathophysiological processes. We compared abundances of ECM proteins from excised valve tissues of 88 patients with isolated AVD of normal tricuspid (TAV) and congenital bicuspid aortic valves (BAV) by employing a new method for protein preparation and quantitative mass-spectrometry analysis.

2023-09-03 | PXD025002 | Pride

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