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Homo sapiens
11 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
We used microarrays to investigate changes in gene expression of human vascular endothelial cells (HUVEC) exposed to an apple extract enriched in procyanidins of low-medium molecular weight (dp3.9) to determine possible protective effects induced by these plant derived compounds on the endothelial cells.
Publication Title
Oligomeric procyanidins inhibit cell migration and modulate the expression of migration and proliferation associated genes in human umbilical vascular endothelial cells.
Sample Metadata Fields
No sample metadata fields
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SRP090189- Mus musculus
- 1 Downloadable Sample
Illumina HiSeq 2000
Description
Background: In order to become functionally competent but harmless mediators of the immune system, T cells undergo a strict educational program in the thymus, where they learn to discriminate between self and non-self. This educational program is, to a large extent, mediated by medullary thymic epithelial cells (mTECs) that have a unique capacity to express, and subsequently present a large fraction of body antigens. While the scope of promiscuously expressed genes by mTECs is well established, relatively little is known about the expression of variants that are generated by co- and post-transcriptional processes. Results: Our study reveals that in comparison to other cell types, mTECs display significantly higher levels of alternative splicing, as well as A-to-I and C-to-U RNA editing, which thereby further expand the diversity of their self-antigen repertoire. Interestingly, Aire, the key mediator of mTECs promiscuous gene expression, plays a limited role in the regulation of these transcriptional processes. Conclusions: Our results highlight RNA processing as another layer by which the immune system assures a comprehensive self-representation in the thymus which is required for the establishment of self-tolerance and prevention of autoimmunity. Identification of the number of genes expressed in Aire-KO MEChi Overall design: ~100ng of total RNA was isolated by Trizol extraction from MHC-II high mTECs from a pool of 3 Aire-KO mice. Poly-A-selected transcriptome libraries were generated using the non-directionnal TruSeq V3 RNA Sample Prep Kit (without additional pre-amplification) following the manufacturer''s protocols. Enrichment of DNA fragment with adapter molecules on both ends was done using 15 cycles of PCR amplification using the Illumina PCR mix and primer cocktail. Paired-end (2 × 100 bp) sequencing was performed using the Illumina HiSeq2000 machine.
Publication Title
Extensive RNA editing and splicing increase immune self-representation diversity in medullary thymic epithelial cells.
Sample Metadata Fields
Specimen part, Subject
View Samples- Homo sapiens
- 27 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
CLP1 controls the expression of Aire-sensitive genes with proximal pAs and their shortening in HEK293 cells
Publication Title
Aire-dependent genes undergo Clp1-mediated 3'UTR shortening associated with higher transcript stability in the thymus.
Sample Metadata Fields
Cell line
View Samples- Danio rerio
- 32 Downloadable Samples
- Affymetrix Zebrafish Genome Array (zebrafish)
Description
Analysis of the transcriptome of zebrafish mononuclear myogenic cells (zMNCs) during myogenic differentiation. The main goal is to identify the similarities of zMNC myogenic differentiation with that of mammalian myoblast differentiation. Critical time points were used to identify a switch from the activity of cell proliferation genes to myogenic structural genes.
Publication Title
Isolation and transcriptome analysis of adult zebrafish cells enriched for skeletal muscle progenitors.
Sample Metadata Fields
Specimen part, Time
View Samples- Homo sapiens
- 12 Downloadable Samples
- IlluminaHiSeq2000
Description
Advances in cellular reprogramming and stem cell differentiation now enable ex vivo studies of human neuronal differentiation. However, it remains challenging to elucidate the underlying regulatory programs because differentiation protocols are laborious and often result in low neuron yields. Here, we overexpressed two murine Neurogenin transcription factors in human induced pluripotent stem cells, and obtained neurons with bipolar morphology in four days at greater than 90% purity. The high purity enabled mRNA and microRNA expression profiling during neurogenesis, thus revealing the genetic programs involved in the transition from stem cell to neuron. These profiles were then analyzed to identify the regulatory networks underlying the differentiation of the neurons. Overall design: Paired end RNA sequencing of iPS cells (PGP1) at 0, 1, 3, and 4 days post- doxycycline induction of murine NGN1 and NGN2. This was done using an Illumina HiSeq, and reads were aligned to hg19
Publication Title
Rapid neurogenesis through transcriptional activation in human stem cells.
Sample Metadata Fields
No sample metadata fields
View Samples- Zea mays
- 4 Downloadable Samples
- Affymetrix Maize Genome Array (maize)
Description
At 35 DAP whole kernels (pericarp + endosperm + embryo) without glumes of green house grown ears of heterozygous (+/bt2-H2328), self-pollinated plants were visually divided into pools of phenotypically normal looking kernels (small indentation, slightly smaller than mutant kernels, genotype +/+ or +/bt2-H2328) and pools of phenotypically mutant kernels (plump, round kernels, slightly larger than normal kernels, genotype bt2-H2328/bt2-H2328). Pools consisted of 4 kernels. 3 different ears were used for a biological duplicate.
Publication Title
Transcriptional and metabolic adjustments in ADP-glucose pyrophosphorylase-deficient bt2 maize kernels.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 8 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Loss of Pggt1b leads to marked defects in thymocyte egress and T cell lymphopenia in peripheral lymphoid organs in vivo
Publication Title
Mevalonate metabolism-dependent protein geranylgeranylation regulates thymocyte egress.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Clariom S Array (clariomsmouse), Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Hippo/Mst signaling coordinates cellular quiescence with terminal maturation in iNKT cell development and fate decisions.
Sample Metadata Fields
Specimen part, Disease
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
Lysosomal cathepsins regulate an exquisite range of biological functions, and their deregulation is associated with inflammatory, metabolic and degenerative disease in humans. Here, we identified a key cell-intrinsic role for cathepsin B as a negative feedback regulator of lysosomal biogenesis and autophagy. Mice and macrophages lacking cathepsin B activity had increased resistance to the cytosolic bacterial pathogen Francisella novicida. Genetic deletion or pharmacological inhibition of cathepsin B downregulated mTOR activity and prevented cleavage of the lysosomal calcium channel TRPML1. These events drove transcription of lysosomal and autophagy genes via the transcription factor TFEB, which increased lysosomal biogenesis and activation of autophagy-initiation kinase ULK1 for clearance of the bacteria. Our results identified a fundamental biological function of cathepsin B in providing a checkpoint for homeostatic maintenance of lysosome population and basic recycling functions in the cell.
Publication Title
Cathepsin B modulates lysosomal biogenesis and host defense against Francisella novicida infection.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 4 Downloadable Samples
- Illumina Genome Analyzer IIx
Description
Background: Dendritic cells (DCs) are critical for regulating CD4 and CD8 T cell immunity, controlling Th1, Th2, and Th17 bias, generating inducible Tregs, and inducing tolerance. Multiple DC subsets have been identified in the mouse that are thought to have evolved to control these different immune outcomes. However, how these subsets differentially respond to inflammatory and/or tolerogenic signals in order to accomplish their divergent functionality remains unclear. Results: We analysed the responses of murine, splenic CD8 and CD11b DC subsets to in-vivo stimulation with lipopolysaccharide using RNA-Seq and systems biology approaches and observed responses are highly subset-specific. We reanalysed multiple datasets from the literature and show that these subset responses are obscured when analysing signaling at the population level. We show that the subset-specificity is due to the unique regulation of distinct TLR4 pathway modulators that ‘fine-tune’ a common TLR4 cascade rather and not due to major differences in signaling pathways or transcription factors. Conclusions: We propose the Pathway Modulation Model wherein common signaling pathways are regulated by unique sets of modulators allowing for distinct immune responses in closely related DC subsets. We extend these observations using analagous datasets from the literature and show that our model provides a global mechanism for generating cell subset-specific signaling in multiple subpopulations in mouse and man. Overall design: Splenic CD8 and CD11b DC subsets from LPS stimulated (10 pooled animals) and Control (5 pooled animals) mice were analysed by RNA-Seq.
Publication Title
A systems biology approach to the analysis of subset-specific responses to lipopolysaccharide in dendritic cells.
Sample Metadata Fields
Specimen part, Cell line, Subject, Time
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