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GSE8013
Rattus norvegicus
8 Downloadable Samples
Affymetrix Rat Expression 230A Array (rae230a)
Description
The study was performed using primary rat hepatocyte in culture from 4 adult male Sprague-Dawley rats to investigate the changes in gene expression under low dose (4M) and short exposure (3hrs) of cadmium chloride. By comparing the gene expression profiles of control and cadmium-treated cells, the most dramatic and significant changes were for those genes associated with transcriptional regulation, antioxidant response and control of protein integrity. Changes in other genes involved in cellular physiological responses such as inflammation, growth and apoptosis were also observed. Results were further confirmed by quantitative real time polymerase chain reaction (qRT-PCR).
Publication Title
Early sensing and gene expression profiling under a low dose of cadmium exposure.
Sample Metadata Fields
Time
View Samples- Homo sapiens
- 46 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Idiopathic pulmonary fibrosis (IPF) and non-specific interstitial pneumonia (NSIP) are the 2 most common forms of idiopathic interstitial pneumonia. Response to therapy and prognosis are remarkably different. The clinical-radiographic distinction between IPF and NSIP may be challenging. We sought to investigate the gene expression profile of IPF vs. NSIP
Publication Title
Comprehensive gene expression profiling identifies distinct and overlapping transcriptional profiles in non-specific interstitial pneumonia and idiopathic pulmonary fibrosis.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
An RB-EZH2 Complex Mediates Silencing of Repetitive DNA Sequences.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 26 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Pulmonary arterial hypertension (PAH) is the best characterized and most studied type of pulmonary hypertension, classified as Group I according to the international guidelines, and hemodinamically defined as pre-capillary pulmonary hypertension. Our analysis was focused on the role of the osteopontin gene in the transcriptional profile of PAH.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Upon G1-S transition, cyclin-dependent kinases (CDKs) phosphorylate the retinoblastoma tumor suppressor protein (pRB) to release E2F transcription factors, which activate transcriptional programs, required for S-phase entry. Beyond the G1-S transition, pRB activity remains poorly understood. Our lab has discovered that pRB retains exclusive binding to E2F1 through an alternate E2F1-specific binding site at the pRB c-terminus independent of CDK phosphorylation. We have developed a gene-targeted mouse model that is defective for the E2F1-specific interaction. We are exploring the function of this complex through genome-wide binding and expression profiling. Overall, this work suggests an alternate pRB-E2F1 complex persists independent of CDK phosphorylation to establish regions of constitutive heterochromatin
Publication Title
An RB-EZH2 Complex Mediates Silencing of Repetitive DNA Sequences.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 9 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
The retinoblastoma protein (pRB) is best known for regulating cell proliferation through E2F transcription factors. In this report we investigate the properties of a targeted mutation that disrupts pRB interactions with the transactivation domain of E2Fs. Mice that carry this mutation endogenously (Rb1G) are defective in regulating E2F target genes. Surprisingly, cell cycle regulation in Rb1G/G MEFs strongly resembles that of wild type. In a serum deprivation induced cell cycle exit, Rb1G/G MEFs display a similar magnitude of E2F target gene derepression as Rb1-/-, even though Rb1G/G cells exit the cell cycle normally. Interestingly, cell cycle arrest in Rb1G/G MEFs is responsive to p16 expression, indicating that the G-pRB protein can be activated in G1 to arrest proliferation through non-E2F mechanisms. Some Rb1G/G mice die neonatally with a muscle degeneration phenotype, while the others live a normal lifespan with no evidence of spontaneous tumor formation. Histological analysis reveals discrete examples of hyperplasia in the mammary epithelium, but most tissues appear normal while being accompanied by derepression of pRB regulated E2F targets. This suggests that non-E2F, pRB dependent pathways may have a more relevant role in proliferative control than previously identified.
Publication Title
A retinoblastoma allele that is mutated at its common E2F interaction site inhibits cell proliferation in gene-targeted mice.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 24 Downloadable Samples
- Affymetrix Mouse Gene 1.1 ST Array (mogene11st)
Description
Analysis of kidneys from 12 week BPH/2J hypertensive and age matched normotensive BPN/3J controls - males and females. The results provide insights into the genes that are involved in hypertension in both males and females, as well as highlight mechanisms that underlye sex differences in hypertension.
Publication Title
Identification of genes with altered expression in male and female Schlager hypertensive mice.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Disease stage
View Samples- Arabidopsis thaliana
- 12 Downloadable Samples
- Arabidopsis Gene 1.0 ST Array (aragene10st)
Description
Genome-wide transcriptome analysis was carried out in root tissue of Arabidopsis seedlings treated with gold (Au) as Chloroauric acid (HAuCl4). This study demonstrated remarkable changes in root transcriptome within the 12 h exposure. Most of the genes differentially expressed were related to glutathione binding, methylations, secondary metabolism, sugar metabolism, ABA, ethylene, auxin related signalling, transport and signal-transduction pathways.
Publication Title
Genome wide transcriptome analysis reveals ABA mediated response in Arabidopsis during gold (AuCl(-) 4) treatment.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 2886 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Consider the problem of designing a panel of complex biomarkers to predict a patient's health or disease state when one can pair his or her current test sample, called a target sample, with the patient's previously acquired healthy sample, called a reference sample. As contrasted to a population averaged reference, this reference sample is individualized. Automated predictor algorithms that compare and contrast the paired samples to each other could result in a new generation of test panels that compare to a person's healthy reference to enhance predictive accuracy. This study develops such an individualized predictor and illustrates the added value of including the healthy reference for design of predictive gene expression panels. The objective is to predict each subject's state of infection, e.g., neither exposed nor infected, exposed but not infected, pre-acute phase of infection, acute phase of infection, post-acute phase of infection. Using gene microarray data collected in a large-scale serially sampled respiratory virus challenge study, we quantify the diagnostic advantage of pairing a person's baseline reference with his or her target sample.
Publication Title
An individualized predictor of health and disease using paired reference and target samples.
Sample Metadata Fields
Specimen part, Subject, Time
View Samples- Homo sapiens
- 711 Downloadable Samples
- Affymetrix Human Transcriptome Array 2.0 (hta20)
Description
African-American individuals of the GENOA cohort
Publication Title
Genetic Architecture of Gene Expression in European and African Americans: An eQTL Mapping Study in GENOA.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples