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GSE14843
Mus musculus
6 Downloadable Samples
Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
BackgroundAcute coronary syndrome (ACS) is sometimes accompanied by accelerated coagulability, lipid metabolism, and inflammatory responses, which are not attributable to the cardiac events alone. We hypothesized that the liver plays a pivotal role in the pathophysiology of ACS. We simultaneously analyzed the gene expression profiles of the liver and heart during acute myocardial ischemia in mice.
Publication Title
Altered hepatic gene expression profiles associated with myocardial ischemia.
Alternate Accession IDs
Sample Metadata Fields
Sex, Specimen part
View Samples- Homo sapiens
- 2 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutations have shown a dramatic response to EGFR inhibitors (EGFR-TKI). EGFR T790M mutation and MET amplification have been recognized as major mechanisms of acquired resistance to EGFR-TKI. Therefore, MET inhibitors have recently been used in NSCLC patients in clinical trials. In this study, we tried to identify the mechanism of acquired resistance to MET inhibitor. We analyzed the antitumor effects of two MET inhibitors, PHA-665752 and crizotinib, in 10 NSCLC cell lines. EBC1 cells with MET amplification were the only cells that were sensitive to both MET inhibitors. We established PHA-665752-resistant EBC1 cells, namely EBC1-R cells. EBC1-R cells showed overexpression of ATP-binding cassette sub-family B member 1 (ABCB1) as well as phosphorylation of MET. EBC1-R cells grew as cell spheres that exhibited cancer stem cell-like (CSC) properties and epithelial mesenchymal transition (EMT). The levels of two miRNAs, miR-374a and miR-138 which targeted ABCB1, were decreased in EBC1-R cells. ABCB1 siRNA and ABCB1 inhibitor elacridar could reduce sphere numbers and suppress EMT. Elacridar could also reverse the resistance to PHA-665752 in EBC1-R cells. Our study demonstrated that ABCB1 overexpression which was associated with CSC properties and EMT was involved in the acquired resistance to MET inhibitor. Inhibition of ABCB1 might be a novel therapeutic strategy for NSCLC patients with acquired resistance to MET inhibitor.
Publication Title
Inhibition of ABCB1 Overcomes Cancer Stem Cell-like Properties and Acquired Resistance to MET Inhibitors in Non-Small Cell Lung Cancer.
Alternate Accession IDs
Sample Metadata Fields
Cell line
View Samples- Rattus norvegicus
- 15 Downloadable Samples
Illumina HiSeq 4000
Description
Metabolic syndrome is a collection of interconnected risk factors including obesity, insulin resistance, dyslipidemia and high blood pressure. Desirably, an effective pharmacotherapy for the medical condition should be able to target multiple risk factors concurrently. Based on our literature review and preliminary studies, ellagitannin geraniin, which is a polyphenolic compound, can confer many health benefits related to metabolic syndrome, but the underlying mechanism is unclear. Thus, we aim to explore the molecular pathways of the natural product using transcriptomic analysis. As for the experimental design, Sprague Dawley rats were given starch-based control diet (CD) or high-fat diet (HFD) for 8 weeks to induce metabolic syndrome. Then, some of the rats from HFD group were treated with ellagitannin gerannin (25 mg/kg/day) via oral gavage for 4 weeks. Other rats from the CD and HFD groups were treated with vehicle (10% w/v glucose solution) via the same approach. At the end of the experiment, total RNA was isolated from the liver for sequencing to compare the transcriptomes between groups.
Publication Title
No associated publication
Alternate Accession IDs
None
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 4 Downloadable Samples
- IlluminaGenomeAnalyzerIIx
Description
Human inactive X chromosome (Xi) forms a compact structure called the Barr body, which is enriched in repressive histone modifications such as trimethylation of histone H3 Lys9 (H3K9me3) and Lys27 (H3K27me3). These two histone marks are distributed in distinct domains, and XIST (X inactive specific transcript) preferentially colocalizes with H3K27me3 domains. Here, we show that Xi compaction requires HBiX1, a heterochromatin protein 1 (HP1)–binding protein, and SMCHD1 (structural maintenance of chromosomes hinge domain containing 1), both of which are enriched throughout the Xi chromosome. HBiX1 localization to H3K9me3 and XIST-associated H3K27me3 (XIST-H3K27me3) domains was mediated through interactions with HP1 and SMCHD1, respectively. Furthermore, HBiX1 was required for SMCHD1 localization to H3K9me3 domains. Depletion of HBiX1 or SMCHD1, but not Polycomb repressive complex 2 (PRC2), resulted in Xi decompaction, similarly to XIST depletion. Thus, the molecular network involving HBiX1 and SMCHD1 links the H3K9me3 and XIST-H3K27me3 domains to organize the compact Xi structure.
Publication Title
No associated publication
Alternate Accession IDs
None
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Four conditions of cultured CD8+ T cells were analyzed with Affymetrix HG-U133-Plus-2.0 microarrays.
Publication Title
Detection of self-reactive CD8⁺ T cells with an anergic phenotype in healthy individuals.
Alternate Accession IDs
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 1 Downloadable Sample
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
We have found that some tumor infiltrating lymphocytes in colorectal cancer (CRC) tumor expressed low intensity of FOXP3 with flow cytometry assays, resulting in the presence of certain amount of tumor infiltrating FOXP3lo cells in subpopulation of CRC tumor tissues. To clarify different gene expression paterns between CRC tumors with high FOXP3lo cell infiltration and without these cell infilrtraion, we performed microarray analyses with total mRNA extracted from whole tumor tissues with high FOXP3lo cell infiltration (n=2) and low FOXP3lo cell infiltration (n=2). Comparison of gene expression profiles revealed that genes involved in immune responses and inflammation were significantly up-regulated in tumor with high FOXP3lo cell infiltration.
Publication Title
No associated publication
Alternate Accession IDs
Sample Metadata Fields
Specimen part, Disease
View Samples- Saccharomyces cerevisiae
- 35 Downloadable Samples
- Illumina HiSeq 2000
Description
This study aims at using RNA-Seq to characterize effects of ribavirin on whole transcriptomes of S. cerevisiae strains containing dsRNA virus-like particles.
Publication Title
No associated publication
Alternate Accession IDs
None
Sample Metadata Fields
Specimen part, Disease, Cell line
View Samples- Arabidopsis thaliana
- 6 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Global gene expression patterns were compared among wild-type Col-0, teb, atr, teb atr of A. thaliana using shoot apices.
Publication Title
No associated publication
Alternate Accession IDs
None
Sample Metadata Fields
Age, Specimen part, Time
View Samples- Arabidopsis thaliana
- 4 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Comparison of Arabidopsis wild-type developing seeds grown under sulfur-deficient condition vs Arabidopsis wild-type developing seeds grown under control condition.
Publication Title
No associated publication
Alternate Accession IDs
None
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 1 Downloadable Sample
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
The aim to the study was to elucidate the character of odontogenic epithelial cells from epithelial cell rests of Malassez in comparison with gingival epithelial cells by carrying out a geome-wide expression analysis.
Publication Title
No associated publication
Alternate Accession IDs
Sample Metadata Fields
Specimen part, Cell line
View Samples