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GSE4648
Mus musculus
198 Downloadable Samples
Affymetrix Murine Genome U74A Version 2 Array (mgu74av2)
Description
We report a genome-wide survey of early responses of the mouse heart transcriptome to acute myocardial infarction (AMI). For three regions of the left ventricle (LV), namely ischemic/infarcted tissue (IF), the surviving LV free wall (FW) and the interventricular septum (IVS), 36,899 transcripts were assayed at six time points from 15 min to 48 h post-AMI in both AMI and sham surgery mice. For each transcript, temporal expression patterns were systematically compared between AMI and sham groups, which identified 515 AMI-responsive genes in IF tissue, 35 in the FW, 7 in the IVS, with three genes induced in all three regions. Using the literature, we assigned functional annotations to all 519 nonredundant AMI-induced genes and present two testable models for central signaling pathways induced early post-AMI. First, the early induction of 15 genes involved in assembly and activation of the activator protein-1 (AP-1) family of transcription factors implicates AP-1 as a dominant regulator of earliest post-ischemic molecular events. Second, dramatic increases in transcripts for arginase 1 (ARG1), the enzymes of polyamine biosynthesis and protein inhibitor of nitric oxide synthase (NOS) activity indicates that NO production may be regulated, in part, by inhibition of NOS and coordinate depletion of the NOS substrate, L-arginine. ARG1 was the single most highly induced transcript in the database (121-fold in IF region) and its induction in heart has not been previously reported.
Publication Title
Earliest changes in the left ventricular transcriptome postmyocardial infarction.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 30 Downloadable Samples
- Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Gene expression effects of glucocorticoid and mineralocorticoid receptor agonists and antagonists on normal human skeletal muscle.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 18 Downloadable Samples
- Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
To define the direct gene expression changes in normal human skeletal muscle with mineralocorticoid and glucocorticoid receptor agonist and antagonist treatment.
Publication Title
Gene expression effects of glucocorticoid and mineralocorticoid receptor agonists and antagonists on normal human skeletal muscle.
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
To uncover whether aldosterone induces gene expression changes through mineralocorticoid or glucocorticoid receptors and determine if eplerenone and spironolactone could block aldosterone induced gene expression to the same extent
Publication Title
Gene expression effects of glucocorticoid and mineralocorticoid receptor agonists and antagonists on normal human skeletal muscle.
Sample Metadata Fields
Sex, Specimen part
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
VAChT KDHOM mice have a 70% decrease in the vesicular acetylcholine transporter (VAChT) and this leads to a systemic decrease in ACh release and cardiac dysfunction.
Publication Title
An analysis of the myocardial transcriptome in a mouse model of cardiac dysfunction with decreased cholinergic neurotransmission.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Rattus norvegicus
- 9 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
The mineralocorticoid aldosterone mainly produced by the adrenal gland is essential for life but an abnormal excessive secretion causes severe pathological effects including hypertension and target organ injury in the heart and kidney. The aim of this study was to determine the gene regulatory network triggered by aldosterone secretagogues in a non transformed cell system. Freshly isolated rat adrenal zona glomerulosa cells were stimulated with the two main aldosterone secretagogues, angiotensin II and potassium, for two hours and subjected to whole genome expression studies using multiple biological and bioinformatics tools. Several genes were differentially expressed by Ang II (n=133) or potassium (n=216). Genes belonging to the nucleic acid binding and transcription factor activity categories were significantly enriched. A subset of the most regulated genes were confirmed by real-time RT-PCR and then their expression analyzed in time curve studies. Differentially expressed genes were grouped according to their time-response expression pattern and their promoter regions analyzed for common regulatory transcription factors binding sites. Finally, data mining with gene promoters, transcription factors and literature databases were performed to generate gene interaction networks for either Ang II or potassium. This study provides for the first time a complete study of the genes that are regulated, and the interaction between them, by aldosterone secretagogues in rat adrenal cells. Increasing our knowledge of adrenal physiology and gene regulation in non transformed cell systems would lead us to a better approach for discovery of candidate genes involved pathological conditions of the adrenal cortex.
Publication Title
Gene expression profile in rat adrenal zona glomerulosa cells stimulated with aldosterone secretagogues.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 91 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
PURPOSE
Publication Title
Gene expression profiling reveals novel biomarkers in nonsmall cell lung cancer.
Sample Metadata Fields
Specimen part, Disease
View Samples- Homo sapiens
- 9 Downloadable Samples
- Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
To test for a function effect of mineralocorticoid receptor modulation in skeletal muscle, global gene expression analysis was conducted on human myltubes treated with a mineralocorticoid receptor agonist or antagonist.
Publication Title
Mineralocorticoid receptors are present in skeletal muscle and represent a potential therapeutic target.
Sample Metadata Fields
Sex
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
To identify the gene expression differences in skeletal muscles resulting from treatment of dystrophic mice with spironolactone plus lisinopril
Publication Title
Mineralocorticoid receptors are present in skeletal muscle and represent a potential therapeutic target.
Sample Metadata Fields
Sex, Age, Treatment
View Samples- Caenorhabditis elegans
- 5 Downloadable Samples
Illumina HiSeq 2000
Description
Transciptomic analysis of germline tumor cells to understand the role of autophagy and neuronal differentiation in lifespan extension. Overall design: Methods: Worms were grown on control L444 seeded plates or gld-1 RNAi seeded plates and subjected to RNA isolation and sequencing using standard Illumina protocols. Conclusions: Fasting of animals expressing tumors increases their lifespan two-fold through autophagy and modular changes in transcription as well as metabolism.
Publication Title
Autophagy and modular restructuring of metabolism control germline tumor differentiation and proliferation in C. elegans.
Sample Metadata Fields
Subject
View Samples