GEO DataSets

(Submitter supplied) Although unstable atherosclerosis in the carotid bifurcation is a significant etiology behind ischemic stroke, clinical imaging methods to distinguish stable from vulnerable lesions are lacking and selection of patients for stroke-preventive intervention still relies on surrogate variables with moderate predictive power, such as the degree of luminal narrowing. Here we combined clinical and diagnostic imaging information by comuted tomography to select patients with calcified plaques for large scale molecular analysis, in an effort to increase our understanding of the pathophysiology behind carotid plaque instability as related to patient- and plaque- phenotype.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17586

40 Samples

Download data: CEL

(Submitter supplied) BACKGROUND: The vast majority of thoracic aortic aneurysms (TAAs) are observed either together with a bicuspid aortic valve (BAV), a common congenital disorder, or in idiopathic cases such as patients with a normal tricuspid aortic valve (TAV). The main objective of our study was to identify shared and unique gene expression properties underlying the aortic dilation of BAV and TAV patients. METHODS AND RESULTS: Tissue biopsies for RNA and histological analyses were obtained from aorta of non-dilated (<40mm) and dilated (>45mm) aorta of BAV and TAV patients (in total 131 patients). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL5175

96 Samples

Download data: CEL

(Submitter supplied) A biobank collection of carotid plaque samples taken from patients undergoing endarterectomy operations.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

223 Samples

Download data: CEL

(Submitter supplied) One pending issue in cardiovascular epigenetics is whether cerebrovascular events, a major complication of atherosclerosis, are associated with any specific DNA methylation changes in the carotid plaque. To clarify that topic, we profiled the DNA methylomes of human symptomatic carotid plaques (SCPs) obtained from patients who suffered cerebrovascular events (n=19) and asymptomatic counterparts (ACP; n=19) with a high-density microarray (~485,000 CpG sites, Illumina), and crossed DNA methylation data with RNAseq-based expression data from an independent SCP set (n=8). more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

38 Samples

Download data: TXT

(Submitter supplied) Background Rupture or erosion of advanced atherosclerotic lesions with a resultant myocardial infarction or stroke are the leading worldwide cause of death. However, we have a very limited understanding of the identity, origin, and function of many cells that make up late stage atherosclerotic lesions, as well as the mechanisms by which they control plaque stability. Methods and Results Using RNAseq and ChIPseq of advanced atherosclerotic lesions from mice, we provide evidence SMC-specific Klf4- versus Oct4-knockout ApoE-/- mice showed virtually opposite genomic signatures and putative SMC Klf4 or Oct4 target genes play an important role regulating SMC phenotypic changes. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platforms:

GPL16417 GPL13112

22 Samples

Download data: NARROWPEAK, TXT

(Submitter supplied) Smooth muscle cells were treated with platelet derived growth factor (PDGF-BB) and S100A4 protein to decipher the mechanisms by which they contribute to smooth muscle cell phenotypic transition. We report that PDGF-BB treatment upregulates genes related to growth response or to extracellular matrix component proteases, while S100A4 upregulates pro-inflammatory genes. When used in combination, PDGF-BB and S100A4 show synergistic action by enhancing the upregulation of genes already affected by S100A4 and by inducing the upregulation of genes exclusive for this condition.

Organism:

Sus scrofa

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22475

12 Samples

Download data: TXT

(Submitter supplied) This experiment tests the hypothesis that interleukin-1 promotes SMC phenotypic modulation to a distinct inflammatory state relative to the growth factor PDGF-DD.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

4 Samples

Download data: CEL

(Submitter supplied) In order to determine a mechanism through which TGF-b/Smad3 promote these effects, Affymetrix gene expression arrays were performed on primary rat SMCs infected with Smad3 and stimulated with TGF-b or infected with GFP alone. More than 200 genes were differentially expressed (>2.0 fold change, p<0.05) in TGF-b/Smad3 stimulated SMCs. We then performed GO term enrichment analysis using the DAVID bioinformatics database and found that TGF-b/Smad3 activated the expression of multiple genes related to either development or cell differentiation, several of which have been shown to be associated with multipotent stem or progenitor cells.

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL6247

6 Samples

Download data: CEL, CHP, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23126

12 Samples

Download data: CEL

(Submitter supplied) Transcriptomics analysis of human coronary artery smooth muscle cells cultured in osteogenic medium (OM) to induce a mineralized extracellular matrix. To study the underlying molecular mechanisms driving vascular calcification, we analyzed the transcriptome of osteogenic medium (OM)-calcified human coronary artery smooth muscle cells on day 7.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL23126

6 Samples

Download data: CEL

(Submitter supplied) Transcriptomics analysis of human coronary artery smooth muscle cells cultured in calcium-phosphate medium (CaP) to induce a mineralized extracellular matrix. To study the underlying molecular mechanisms driving vascular calcification, we analyzed the transcriptome of calcium-phosphate calcified human cronary aortic smooth muscle cells on day 3.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL23126

6 Samples

Download data: CEL

(Submitter supplied) We report dynamic temporal and spatial smooth muscle cell phenotype modulation using aortic single cell RNA sequencing in a murine model of Marfan syndrome (Fbn1C1041G/+) and littermate controls. Aortic root/ascending aortic tissue samples from both genotypes were studied at 4 and 24 weeks of age. The non-aneurysmal descending thoracic aorta was also studied at 24 weeks. Finally human aortic tissue from a Marfan syndrome patient undergoing aneurysm repair surgery was studied.

Organism:

Mus musculus; Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL20301 GPL21103

8 Samples

Download data: CSV

(Submitter supplied) Aryl-hydrocarbon receptor protects against endochondral ossification of modulated smooth muscle cells in atherosclerosis Introduction: Smooth muscle cells (SMC) play a critical role in atherosclerosis. The Aryl hydrocarbon receptor (AHR) is an environment-sensing transcription factor that contributes to vascular development, and has been implicated in coronary artery disease (CAD) risk. We hypothesized that AHR can affect atherosclerosis by regulating phenotypic modulation of SMC. more...

Organism:

Homo sapiens; Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL24676 GPL21103 GPL20301

34 Samples

Download data: BW, TXT

(Submitter supplied) Atherosclerotic plaque rupture is the etiology of ischemic stroke and myocardial infarction. Ribosome-depleted total RNA was sequenced from carotid plaques obtained from patients undergoing carotid endarterectomy with high-grade stenosis and either 1) a carotid-related ischemic cerebrovascular event within the previous 5 days ('recently ruptured,' n=6) or 2) an absence of a cerebrovascular event ('asymptomatic,' n=5). more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

11 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

18 Samples

Download data: CEL

(Submitter supplied) MiR-30e represses the osteogenic program in mesenchymal stem cells (MSCs) and smooth muscle cells (SMCs) by targeting IGF2, and drives their differentiation into adipogenic or smooth muscle lineage, respectively.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

6 Samples

Download data: CEL

(Submitter supplied) MiR-30e represses the osteogenic program in mesenchymal stem cells (MSCs) and smooth muscle cells (SMCs) by targeting IGF2, and drives their differentiation into adipogenic or smooth muscle lineage, respectively.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

6 Samples

Download data: CEL

(Submitter supplied) MiR-30e represses the osteogenic program in mesenchymal stem cells (MSCs) and smooth muscle cells (SMCs) by targeting IGF2, and drives their differentiation into adipogenic or smooth muscle lineage, respectively.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

6 Samples

Download data: CEL

(Submitter supplied) Tissue Factor Pathway Inhibitor-2 is Induced by Fluid Shear Stress in Vascular Smooth Muscle Cells and Affects Cell Proliferation and Survival Introduction: Vascular smooth muscle cells (SMCs) are exposed to fluid shear stress (FSS) after interventional procedures such as balloon-angioplasty. Whereas the effects of hemodynamic forces on endothelial cells are explored in detail, the influence of FSS on smooth muscle cell function is poorly characterized. more...

Organism:

Rattus norvegicus

Type:

Expression profiling by array

Platform:

GPL1355

6 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens; Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL24247 GPL24676

17 Samples

Download data: TXT