Thymic antigen-presenting cells (APCs), including thymic dendritic cells (t-DCs) and medullary thymic epithelial cells (mTECs) have been described to play a critical role in thymic Treg generation. Our findings could show that both these thymic APCs can induce a more pronounced demethylation of Foxp3 and other Treg-specific epigenetic signature genes in developing Tregs when compared to splenic DCs. In order to elucidate the unique properties of thymic APCs, gene expression profiling was performed in comparison to splenic DCs. Transcriptome analysis of thymic APCs revealed differential expression of costimulatory molecules that could be involved in stable Treg generation. Importantly, both mTEC- and t-DC- induced alloantigen-specific Tregs displayed significantly higher efficacy in prolonging skin allograft acceptance when compared to alloantigen-specific Tregs generated by splenic DCs. Overall design: Thymic APCs, including mTECs and t-DCs and splenic DCs were isolated ex vivo from thymus as CD45-EpCAM+Ly51- (mTECs) and CD45+EpCAM-CD11chiLin- (t-DCs) and from spleen as CD11chiLin- (splenic DCs) (Lin is defined as CD90, CD49b, F4/80 and CD19), respectively.
Unique properties of thymic antigen-presenting cells promote epigenetic imprinting of alloantigen-specific regulatory T cells.
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View SamplesWe compared the seedling transcription profiles to determine the effects of loss-of-function of the BRX gene of Arabidopsis. BRX is required for optimal root growth. We compared seedlings of a loss-of-function line (brx) with its control background (Sav-0). Because the loss-of-function line was derived from introgression, a brx line that was complemented by a transgenic wild type copy of BRX was also included as a control. This line (rescued brx) allows the identification of expression differences that are due to introgression drag. See Mouchel et al. 2004, Genes & Dev. Vol. 18, p. 700 for a detailed description. We also compared to response of the different genotypes to the application of the phytohormones brassinolide (BL) and indole acetic acid (IAA)
BRX mediates feedback between brassinosteroid levels and auxin signalling in root growth.
Age, Compound, Time
View SamplesWe recently reported that single-cell derived isogenic subclones of SKMEL5 cells have differential initial sensitivity to BRAF-inhibitors. In order to probe differences among these subclones, we selected three subclones with unique drug responses: progressing (SK-MEL-5 SC10), stationary (SK-MEL-5 SC07), and regressing (SK-MEL-5 SC01) and performed RNASeq. This study examines differentially expressed genes (DEGs) among the subclones to identify the molecular basis for initial differences in drug sensitivity. Overall design: Transcriptomics analysis between single-cell derived isogenic subclones of BRAF-mutated melanoma cell line, SK-MEL-5
A Nonquiescent "Idling" Population State in Drug-Treated, BRAF-Mutated Melanoma.
Specimen part, Cell line, Subject
View SamplesPromoter hypermethylation and transcriptional silencing is a common epigenetic mechanism of tumour suppressor inactivation in cancer, including malignant brain tumours.
Epigenetic genome-wide analysis identifies BEX1 as a candidate tumour suppressor gene in paediatric intracranial ependymoma.
Specimen part, Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Chromatinized protein kinase C-θ directly regulates inducible genes in epithelial to mesenchymal transition and breast cancer stem cells.
Cell line, Treatment
View SamplesEpithelial to mesenchymal transition (EMT) is activated during cancer invasion and metastasis, enriches for cancer stem cells (CSCs), and contributes to therapeutic resistance and disease recurrence. The epithelial cell line MCF7, can be induced to undergo EMT with the induction of PKC by PMA. 5-10% of the resulting cells have a CSC phenotype. This study looks at the transcriptome of these cells and how it differs from cells with a non-CSC phenotype.
Chromatinized protein kinase C-θ directly regulates inducible genes in epithelial to mesenchymal transition and breast cancer stem cells.
Cell line, Treatment
View SamplesEffect of the ablation of connexin 30 in the stria vascularis
Connexin30 deficiency causes instrastrial fluid-blood barrier disruption within the cochlear stria vascularis.
Age, Specimen part, Disease, Time
View SamplesComparison of gene expression profile of Ewing sarcoma cells which have an exchange of the endogenous EWS/FLI1 to either wild-type or a turnover-deficient mutant EWS/FLI1. Most target genes are saturated as only a few target genes are soly driven by increasing protein amount.
Proteasomal Degradation of the EWS-FLI1 Fusion Protein Is Regulated by a Single Lysine Residue.
No sample metadata fields
View SamplesRNA-seq analysis from young and pre-glaucomatous DBA/2J retinal ganglion cells and control (age and sex-matched, D2-Gpnmb+) retinal ganglion cells Overall design: Retinal ganglion cell mRNA from 4 month (young) and 9 month (pre-glaucomatous) DBA/2J mice and age and sex-matched D2-Gpnmb+ controls
Nicotinamide and WLD<sup>S</sup> Act Together to Prevent Neurodegeneration in Glaucoma.
Cell line, Treatment, Subject
View SamplesExpression profiling of mRNA abundance in the adult mouse olfactory epithelium during replacement of OSNs forced by the bilateral ablation of the olfactory bulbs. The experiment was done on 6 week old male C57Bl/6 mice. Olfactory epithelium tissue samples were collected on days 1, 5, and 7 after bulbectomy. The cellular processes activated by bulbectomy include apoptosis of mature olfactory sensory neurons, infiltration of macrophages and dendritic cells, stimulation of proliferation of basal cell progenitors, and differentation of new sensory neurons.
Transcriptional changes during neuronal death and replacement in the olfactory epithelium.
No sample metadata fields
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