CD4+ and CD8+ T cells isolated from wild-type and Foxo1-deficient mice were analyzed by global gene expression profiling with Affymetrix array MOE 430 2.0. Results indicate Foxo1 regulates the expression of genes encoding positive regulators of T cell activation, differentiation, homeostasis, cell adhesion, cell migration, and cellular stress responses.
An essential role of the Forkhead-box transcription factor Foxo1 in control of T cell homeostasis and tolerance.
Specimen part
View SamplesWe found that Hopx is required for the function of DC-induced regulatory T cells in vivo. We used microarrays to identify relevant Hopx-targets in such cells after antigenic re-challenge in vivo.
The transcription cofactor Hopx is required for regulatory T cell function in dendritic cell-mediated peripheral T cell unresponsiveness.
Specimen part
View SamplesPurpose: To compare the transcriptomes of IL-21-expressing, IL-21 and IL-4-expressing, and IL-4 expressing follicular helper T (Tfh) cells and Th2 cells in the spleen at 8 days following helminth infection Methods: Cell sorting of the populations was done for CD4+B220-CD44hiCXCR5hiPD-1hi cells of the various types, followed by mRNA purification. Overall design: CD4+Splenic T cell mRNA profiles 8 days post-infection of IL-21/IL-4 dual reporter mice with Nippostrongylus brasiliensis were generated by mRNA sequencing using Illumina HiSeq 2000.
TFH cells progressively differentiate to regulate the germinal center response.
Specimen part, Subject
View SamplesMicroarray analysis of Myd88-/-Trif-/- and Myd88-/-Rip2-/- macrophage responses to WT or dotA mutant L. pneumophila.
Type IV secretion-dependent activation of host MAP kinases induces an increased proinflammatory cytokine response to Legionella pneumophila.
No sample metadata fields
View SamplesExpression profiling in hippocampal neurons to identify activity-regulated genes controlled by MEF2
Genome-wide analysis of MEF2 transcriptional program reveals synaptic target genes and neuronal activity-dependent polyadenylation site selection.
No sample metadata fields
View SamplesExpression profiling in hippocampal neurons to identify genes upregulated in response to ectopic MEF2 activation by MEF2-VP16-ER
Genome-wide analysis of MEF2 transcriptional program reveals synaptic target genes and neuronal activity-dependent polyadenylation site selection.
No sample metadata fields
View SamplesExpression profiling in whole rat forebrain in response to exposure of animals to a novel environment
Genome-wide analysis of MEF2 transcriptional program reveals synaptic target genes and neuronal activity-dependent polyadenylation site selection.
No sample metadata fields
View SamplesIn this study, we examined differential gene expression in nave human CD4+ T cells, as well as in effector Th1, Th17-negative and Th17-enriched CD4- T cell subsets. We observed a marked enrichment for increased gene expression in effector CD4+ T cells compared to naive CD4+ among immune-mediated disease oci genes. Within effector T cells, expression of disease-associated genes was increased in Th17-enriched compared to Th17-negative cells.
Effector CD4+ T cell expression signatures and immune-mediated disease associated genes.
Specimen part
View SamplesCell communication within tissues is mediated by multiple paracrine signals including growth factors, which control cell survival and proliferation. Cells and the growth factors they produce and receive constitute a circuit, yet the design features of cell circuits involved in tissue homeostasis are unknown. Here we used computational and experimental approaches to characterize the features of cell circuits based on growth factor exchange between macrophages and fibroblasts, two cell types found in most mammalian tissues. We found that the macrophage-fibroblast cell circuit is stable and robust to perturbations. We employed analytical screening of all possible two-cell circuit topologies and defined the circuit features sufficient for stability, including environmental constraint and negative feedback regulation. Moreover, we discovered that cell-cell contact was essential for the stability of the macrophage-fibroblast circuit. These findings highlight general principles of cell circuit design, and provide a new perspective on quantitative understanding of tissue homeostasis. Overall design: 1 sample of murine embryonic fibroblast and 1 sample murine bone marrow derived macrophages are analyzed for their expression of growth factors and growth factor receptors
Circuit Design Features of a Stable Two-Cell System.
Specimen part, Cell line, Subject
View SamplesCaspases, proteolytic enzymes involved in cell death could play a role independent of cell death in the developing heart
Executioner Caspase-3 and 7 Deficiency Reduces Myocyte Number in the Developing Mouse Heart.
Age, Specimen part
View Samples