Mouse inbred strains differ in many aspects of their phenotypes, and it is known that gene expression does so too. This gives us an opportunity to isolate the genetic aspect of variation in expression and compare it to other phenotypic variables. We have investigated these issues using an eight-strain expression profile comparison with four replicates per strain on Affymetrix MGU74av2 GeneChips focusing on one well-defined brain tissue (the hippocampus). We identified substantial strain-specific variation in hippocampal gene expression, with more than two hundred genes showing strain differences by a very conservative criterion. Many such genetically driven differences in gene expression are likely to result in functional differences including differences in behaviour. A large panel of inbred strains could be used to identify genes functionally involved in particular phenotypes, similar to genetic correlation. The genetic correlation between expression profiles and function is potentially very powerful, especially given the current large-scale generation of phenotypic data on multiple strains (the Mouse Phenome Project). As an example, the strongest genetic correlation between more than 200 probe sets showing significant differences among our eight inbred strains and a ranking of these strains by aggression phenotype was found for Comt, a gene known to be involved in aggression.
Hippocampal gene expression profiling across eight mouse inbred strains: towards understanding the molecular basis for behaviour.
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View SamplesDrd2 regulates striatal gene networks.
Suppression of neuroinflammation by astrocytic dopamine D2 receptors via αB-crystallin.
Specimen part
View SamplesNeurons were made from H9 ESCs using a directed differentiation protocol in spinner flasks. After 86 DIV, cells were dissociated and run through the 10X Genomics Chromium single cell RNAseq platform.
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Sex, Age, Specimen part, Cell line
View SamplesBackground: microRNAs (miRNAs) are approximately 21 nucleotide non-coding transcripts capable of regulating gene expression. The most widely studied mechanism of regulation involves binding of the miRNA to a target mRNA, usually in its 3 untranslated region (UTR). As a result, translation of the target mRNA is inhibited and sometimes the mRNA itself can be de-stabilized. The inhibitory effects of miRNAs have been linked to many diverse cellular processes including malignant proliferation and apoptosis, development and differentiation, metabolic processes and neural plasticity. We asked whether endogenous fluctuations in a set of mRNA and miRNA profiles contain correlated changes that are statistically distinguishable from the many other fluctuations in the data set.
Detection of a microRNA signal in an in vivo expression set of mRNAs.
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View SamplesIn the absence of NR4A2 in T cells mice do not develop early acute EAE, but only a late chronic disease. We examined the mechanism by which NR4A2 can control the pathogencity of T cells in CNS autoimmune disease.
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Specimen part
View SamplesTranscriptomic analysis of microRNA populations present within the developing wing and haltere appendage primordia of the model organism Drosophila melanogaster
No associated publication
Sex, Specimen part, Cell line
View SamplesGene expression profiling in rat lumbar spinal cord following ventral root avulsion in the two inbred rat strains.
Genetically determined susceptibility to neurodegeneration is associated with expression of inflammatory genes.
Sex, Specimen part, Time
View SamplesOverexpression of a transcription factor Pbx1a under tetracycline control (tet-on) in neuro2a cell line. Comparison of induced (expressing) vs non-induced (non-expressing) cells.
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Cell line
View SamplesThere have been few studies that have focused on the periplaque regions surrounding demyelinated plaques, especially in spinal cords. Areas of incomplete demyelination have been demonstrated but poorly studied. The present study aimed to analyze the molecular immunopathology of periplaque demyelinated lesions (PDLs) in the spinal cord of patients with secondary progressive multiple sclerosis (MS).
Tissue remodeling in periplaque regions of multiple sclerosis spinal cord lesions.
Sex, Specimen part
View SamplesADARs are RNA editing enzymes that catalyze the deamination of adenosine to inosine in double-stranded RNAs. In mammals, there are two isoforms of ADAR1 including a p110 isoform, which is constitutively and ubiquitously expressed, and a p150 isoform regulated by an IFN-inducible promoter. The mutation in ADAR1 gene causes Aicardi-Goutieres syndrome (AGS), a severe autoimmune disease in human. Furthermore, the significant decrease in RNA-editing activity was found in the p150 isoform mutant associated with AGS. In this study, we will perform transcriptome-wide analysis and identify the targets of ADAR1p150 isoform.
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Cell line
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