Filters
Technology
Platform
Mus musculus
16 Downloadable Samples
Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
The thymus constitutes the primary lymphoid organ for the majority of T cells. The phosphatidyl-inositol 3 kinase (PI3K) signaling pathway is involved in lymphoid development. Defects in single components of this pathway prevent thymocytes from progressing beyond early T cell developmental stages. Protein kinase B (PKB) is the main effector of the PI3K pathway. To determine whether PKB mediates PI3K signaling in early T cell development, we characterized PKB knockout thymi. Our results reveal a significant thymic hypocellularity in PKBalpha-/- neonates and an accumulation of early thymocyte subsets in PKBalpha-/- adult mice. The latter finding is specifically attributed to the lack of PKBalpha within the lymphoid component of the thymus. Microarray analyses show that the absence of PKBalpha in early thymocyte subsets modifies the expression of genes known to be involved in pre-TCR signaling, in T cell activation, and in the transduction of interferon-mediated signals. This report highlights the specific requirements of PKBalpha for thymic development.
Publication Title
Deletion of PKBalpha/Akt1 affects thymic development.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples
GSE13124- Homo sapiens
- 2 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Transcriptional expression data for bioactive small molecules for mechanism identification.
Publication Title
Identification of a novel topoisomerase inhibitor effective in cells overexpressing drug efflux transporters.
Sample Metadata Fields
No sample metadata fields
View Samples- Anopheles gambiae
- 44 Downloadable Samples
Illumina HiSeq 2000
Description
Malaria infection renders humans more attractive to Anopheles gambiae sensu lato mosquitoes than uninfected people. The mechanisms remain unknown. Here, we show that an isoprenoid precursor produced by Plasmodium falciparum, (E)-4-hydroxy-3-methyl-but-2-enyl pyrophosphate (HMBPP), affects A. gambiae s.l. blood meal seeking and feeding behaviors, as well as susceptibility to infection. HMBPP acts indirectly by triggering human red blood cells to increase the release of CO2, aldehydes, and monoterpenes, which together enhance vector attraction, and stimulate vector feeding. When offered in a blood meal, HMBPP modulates neural, antimalarial, and oogenic gene transcription without affecting mosquito survival or fecundity, while in a P. falciparum infected blood meal, sporogony is increased. Overall design: Differential expression was quantified from whole body of mosquitoes in biological triplicates at 1, 3, 6 and 24 hours post treatment with either RBCs or hmbRBCs.
Publication Title
A key malaria metabolite modulates vector blood seeking, feeding, and susceptibility to infection.
Sample Metadata Fields
Subject, Time
View Samples GSE53631- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Microarray based mRNA profiling was used to charactarize and compare the gene expression in cells grown as monolayer or spheroids.
Publication Title
Induction of mitochondrial dysfunction as a strategy for targeting tumour cells in metabolically compromised microenvironments.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Microarray based mRNA profiling was used to charactarize the response to the compound VLX600 in cells grown as spheroids. Cells used was colon cancer cells HCT116 and HCT116HIF1a knock-out.
Publication Title
Induction of mitochondrial dysfunction as a strategy for targeting tumour cells in metabolically compromised microenvironments.
Sample Metadata Fields
Cell line, Treatment
View Samples- Caenorhabditis elegans
- 18 Downloadable Samples
- Affymetrix C. elegans Genome Array (celegans)
Description
LIN-35 is the single C. elegans ortholog of the mammalian pocket protein family members, pRb, p107, and p130. To gain insight into the roles of pocket proteins during development, a microarray analysis was performed with lin-35 mutants. Stage-specific regulation patterns were revealed, indicating that LIN-35 plays diverse roles at distinct developmental stages. LIN-35 was found to repress the expression of many genes involved in cell proliferation in larvae, an activity that is carried out in conjunction with E2F. In addition, LIN-35 was found to regulate neuronal genes during embryogenesis and targets of the intestinal-specific GATA transcription factor, ELT-2, at multiple developmental stages. Additional findings suggest that LIN-35 functions in cell cycle regulation in embryos in a manner that is independent of E2F. A comparison of LIN-35-regulated genes with known fly and mammalian pocket-protein targets revealed a high degree of overlap, indicating strong conservation of pocket protein functions in diverse phyla. Based on microarray results and our refinement of the C. elegans E2F consensus sequence, we were able to generate a comprehensive list of putative E2F-regulated genes in C. elegans. These results implicate a large number of genes previously unconnected to cell cycle control as having potential roles in this process.
Publication Title
Transcriptome profiling of the C. elegans Rb ortholog reveals diverse developmental roles.
Sample Metadata Fields
No sample metadata fields
View Samples- Caenorhabditis elegans
- 6 Downloadable Samples
- Affymetrix C. elegans Genome Array (celegans)
Description
Our slr-2 dataset showed strong overrepresentation of genes previously identified in a serial analysis of gene expression (SAGE) intestinal library (McGhee et al., 2006) (p << 0.01); 812 genes were common to both data sets. Consistent with the deregulation of intestinal genes, we observed repression of several important metabolic pathways, including the TOR and insulin signaling networks, suggesting that slr-2(ku297) mutants experience metabolic stress. We also compared differentially regulated genes in slr-2 and lin-35 single mutants. Again, we saw a statistically significant overlap (p-value < 0.01); 261 genes were present in both data sets. Strikingly, > 75% of genes common both datasets showed expression changes in the same direction, although the common dataset contained an approximately equal mixture of up and downregulated genes. Furthermore, more than fifty genes common to the lin-35 and slr-2 datasets are known to have intestinal-associated functions. That some of these common intestinal genes were absent from the gut SAGE library could be due to differences in the developmental stage of the animals assayed (adults versus L1s) as well as experimental approaches (SAGE versus microarrays)
Publication Title
Coordinated regulation of intestinal functions in C. elegans by LIN-35/Rb and SLR-2.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 24 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Daytime variation of perioperative myocardial injury in cardiac surgery and its prevention by Rev-Erbα antagonism: a single-centre propensity-matched cohort study and a randomised study.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 19 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Nuclear receptor Reverb alpha is a component of circadian rythm which could be evolved in cardioprotection strategy. We test if pharmacological modulation of these target could be suitable for cardioprotection after ischemia reperfusion injury
Publication Title
Daytime variation of perioperative myocardial injury in cardiac surgery and its prevention by Rev-Erbα antagonism: a single-centre propensity-matched cohort study and a randomised study.
Sample Metadata Fields
Specimen part
View Samples- Drosophila melanogaster
- 8 Downloadable Samples
- Affymetrix Drosophila Genome 2.0 Array (drosophila2)
Description
We address the function of HEXIM, an inhibitor of the general transcriptional elongation regulator P-TEFb which regulates the transcriptional status of many developmental genes, during Drosophila development. We showed that HEXIM knockdown mutants display organs development failure. In the wing disc, it induces apoptosis and affects Hh signaling. The continuous death of proliferative cells is compensated by apoptosis-induced cell proliferation, in a manner similar to that of differentiated cells, together with high levels of Hh and Ci. We completed this analysis with microarrays to characterize the molecular phenotype of HEXIM knockdown during eye differentiation.
Publication Title
Functional Interaction between HEXIM and Hedgehog Signaling during Drosophila Wing Development.
Sample Metadata Fields
Specimen part
View Samples