This set consists of small RNAs sequenced from two replicates of wildtype and two replicates of RDR6-15 knockout Arabidopsis thaliana Col-0 leaf samples. RDR6 is required for the production of tasRNAs (trans-acting small RNAS) and so tags associated with the tasRNA loci should be severely down-regulated or absent in the knockout compared to wildtype. The set can thus be used as containing known true positives for testing differential expression detection methods. Overall design: Examination of smRNA in 2 replicates wildtype and 2 replicates RDR6-15 knockout
baySeq: empirical Bayesian methods for identifying differential expression in sequence count data.
Specimen part, Subject
View SamplesThe ability for cut tissues to join together and form a chimeric organism is a remarkable property of many plants, however, grafting is poorly characterized at the molecular level. To better understand this process we monitored genome-wide temporal and spatial gene expression changes in grafted Arabidopsis thaliana hypocotyls. Tissues above and below the graft rapidly developed an asymmetry such that many genes were more highly expressed on one side than the other. This asymmetry correlated with sugar responsive genes and we observed an accumulation of starch above the graft that decreased along with asymmetry once the sugar-transporting vascular tissues reconnected. Despite the initial starvation response below the graft, many genes associated with vascular formation were rapidly activated in grafted tissues but not in cut and separated tissues indicating that a recognition mechanism activated that was independent of functional vascular connections. Auxin which is transported cell-to-cell, had a rapidly elevated response that was symmetric, suggesting that auxin was perceived by the root within hours of tissue attachment to activate the vascular regeneration process. A subset of genes were expressed only in grafted tissues, indicating that wound healing proceeded via different mechanisms depending on the presence or absence of adjoining tissues. Such a recognition process could have broader relevance for tissue regeneration, inter-tissue communication and tissue fusion events. Overall design: We analyzed the poly-adenylated transcriptomes of Arabidopsis thaliana hypocotyle tissue during grafting. Our dataset contains 82 strand-specific samples, whereas each condition is represented by two biological replicates.
Transcriptome dynamics at <i>Arabidopsis</i> graft junctions reveal an intertissue recognition mechanism that activates vascular regeneration.
Subject
View SamplesWe identified PHF5A as a functional synthetic-lethal hit in glioblastoma stem cells compared to normal neural stem cells. We wanted to perform analysis of RNA isoforms present in glioblastoma or normal neural stem cells with or without PHF5A depletion. We performed shRNA knockdown of PHF5A or used non-silencing shRNA as a control, selected infected cells with puromycin, and isolated RNA for sequencing. Overall design: We analyzed RNA from either normal neural stem cells or two different glioblastoma specimens aster either control knockdown, or two different shRNA sequences against the PHF5A gene transcript.
Genome-wide RNAi screens in human brain tumor isolates reveal a novel viability requirement for PHF5A.
No sample metadata fields
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 Samples