Inactivation of ERK/MAPK signaling in developing postmitotic cortical excitatory neurons results in a significent loss of Ctip2 positive layer 5 neurons and axon projections. Microarray dada revealed the reduced levels of a vast majority of layer V specific transcripts.
Layer specific and general requirements for ERK/MAPK signaling in the developing neocortex.
Specimen part
View SamplesWe assessed the gene expression profile of purified CD205+CD8+ Dendritic Cells isolated from murine spleens.
NOD2 modulates immune tolerance via the GM-CSF-dependent generation of CD103<sup>+</sup> dendritic cells.
Sex, Age, Specimen part
View SamplesWe addressed changes in gene expression profile in response to
Role of PUG1 in inducible porphyrin and heme transport in Saccharomyces cerevisiae.
No sample metadata fields
View SamplesUsing RNA sequencing (Illumina Hi-Seq 2000 sequencer) we report the transcriptome profile of primary human chondrocytes isolated from patients with hip osteoarthritis (OA), and the transcriptome response of these cells to 4h stimulation with IL-1ß (1ng/ml). In total, 983 long non-coding RNAs (lncRNAs) were identified, which included 642 intergenic lncRNAs (lincRNAs), 124 antisense and pseudogenes. Less than 4% of the identified lncRNAs overlapped with putative eRNAs regions, and visual inspection showed that they were uni-directional and multi-exonic. Upon IL-1ß stimulation 499 protein-coding genes were differentially expressed, and 158 lncRNAs were differentially expressed, including 92 lincRNAs, 13 antisense and 18 psudogenes. This study demonstrates that IL-1ß induces a rapid and widespread change in the transcriptome of the primary human OA chondrocyte. Overall design: RNA sequencing analysis of primary human chondrocytes isolated from n=3 patients with hip osteoarthritis, with and without 4h IL-1b (1ng/ml) stimulation
Long Intergenic Noncoding RNAs Mediate the Human Chondrocyte Inflammatory Response and Are Differentially Expressed in Osteoarthritis Cartilage.
No sample metadata fields
View SamplesWe report single-cell transcriptional assessment and functional circuit characterization of neuron types within the mouse entopeduncular nucleus (EP) Overall design: Transcriptional profilingof EP neurons from P60-70 C57BL/6 male mice; three types were identified, characterized, and incorporated into a synaptic-circuit model of basal ganglia please note that Replicate 2 was lost experimentally and not included, so n=3 replicates total
Genetically Distinct Parallel Pathways in the Entopeduncular Nucleus for Limbic and Sensorimotor Output of the Basal Ganglia.
Sex, Specimen part, Cell line, Subject
View SamplesIron is an essential cofactor for enzymes involved in numerous cellular processes. We analyzed the metabolomes and transcriptomes of yeast grown in iron-rich and iron-poor media to determine which biosynthetic processes are altered when iron availability falls.
Metabolic response to iron deficiency in Saccharomyces cerevisiae.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
MicroRNA and transcriptome analysis in periocular Sebaceous Gland Carcinoma.
Specimen part
View SamplesSamples were taken from patients undergoing cancer excision for pagetoid (wide) sebaceous gland carcinoma (SGC) and different individuals undergoing excision for nodular (local) SGC.
MicroRNA and transcriptome analysis in periocular Sebaceous Gland Carcinoma.
Specimen part
View SamplesWe used expression quantitative trait locus mapping in the laboratory rat (Rattus norvegicus) to gain a broad perspective of gene regulation in the mammalian eye and to identify genetic variation relevant to human eye disease. Of >31,000 gene probes represented on an Affymetrix expression microarray, 18,976 exhibited sufficient signal for reliable analysis and at least 2-fold variation in expression among 120 F2 rats generated from an SR/JrHsd x SHRSP intercross. Genome-wide linkage analysis with 399 genetic markers revealed significant linkage with at least one marker for 1,300 probes (alpha = 0.001; estimated empirical false discovery rate = 2%). Both contiguous and noncontiguous loci were found to be important in regulating mammalian eye gene expression. We investigated one locus of each type in greater detail and identified putative transcription-altering variations in both cases. We found an inserted cREL binding sequence in the 5' flanking sequence of the Abca4 gene associated with an increased expression level of that gene, and we found a mutation of the gene encoding thyroid hormone receptor beta 2 associated with a decreased expression level of the gene encoding short-wave sensitive opsin (Opn1sw). In addition to these positional studies, we performed a pairwise analysis of gene expression to identify genes that are regulated in a coordinated manner and used this approach to validate two previously undescribed genes involved in the human disease Bardet-Biedl syndrome. These data and analytic approaches can be used to facilitate the discovery of additional genes and regulatory elements involved in human eye disease.
Regulation of gene expression in the mammalian eye and its relevance to eye disease.
No sample metadata fields
View SamplesGene expression profiling is an important tool in the development of medical countermeasures against chemical warfare agents (CWAs). Non-human primates (NHPs), specifically the rhesus macaque (Macaca mulatta), the cynomologus macaque (Macaca fascicularis) and the African green monkey (Chlorocebus aethiops), are vital models in the development of CWA prophylactics, therapeutics, and diagnostics. However, gene expression profiling of these NHPs is complicated by the fact their genomes are not completely sequenced, and that no commercially available oligonucleotide microarrays (genechips) exist. We, therefore, sought to determine whether gene expression profiling of NHPs could be performed using human genechips. Whole blood RNA was isolated from each species and used to generate genechip probes. Hybridization of the NHP samples to human genechips (Affymetrix Human U133 Plus 2.0) resulted in comparable numbers of transcripts detected compared with human samples. Statistical analysis revealed intraspecies reproducibility of genechip quality control metrics; interspecies comparison between NHPs and humans showed little significant difference in the quality and reproducibility of data generated using human genechips. Expression profiles of each species were compared using principal component analysis (PCA) and hierarchical clustering to determine the similarity of the expression profiles within and across the species. The cynomologus group showed the least intraspecies variability, while the human group showed the greatest intraspecies variability. Intraspecies comparison of the expression profiles identified probesets that were reproducibly detected within each species. Each NHP species was found to be dissimilar to humans; the cynomologus group was the most dissimilar. Interspecies comparison of the expression profiles revealed probesets that were reproducibly detected in all species examined. These results show that human genechips can be used for expression profiling of NHP samples and provide a foundation for the development of tools for comparing human and NHP gene expression profiles.
Comparison of non-human primate and human whole blood tissue gene expression profiles.
No sample metadata fields
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