This SuperSeries is composed of the SubSeries listed below.
Gene Array Analyzer: alternative usage of gene arrays to study alternative splicing events.
Age, Specimen part
View SamplesThe latest version of microarrays released by Affymetrix, the GeneChip Gene 1.0 ST Arrays (gene arrays), are designed in a similar fashion as exon arrays, which enables to identify differentially expressed exons, rather than only the expression level of whole transcripts. Here, we propose an extension, Gene Array Analyzer (GAA), to our previously published Exon Array Analyzer (EAA). GAA enables to analyse gene arrays on exon level and therefore supports to identify alternative splicing with gene arrays. To show the applicability of GAA, we used gene arrays to profile alternative splice events during the development of the heart. Further re-analysis of published gene arrays could show, that some of these splice events reoccur under pathological conditions. The web interface of GAA is user friendly, functional without set up and freely available at http://GAA.mpi-bn.mpg.de.
Gene Array Analyzer: alternative usage of gene arrays to study alternative splicing events.
Age, Specimen part
View SamplesIngestion of collagen peptide elicits beneficial effects on the body. Improvement of blood lipid is one of the effects, but its mechanism remains unclear. Male BALB/cCrSlc mice were bred with the AIN-93M diet containing 14% casein or AIN-93M-based low-protein diet containing 10% casein or diet containing 6% casein+4% collagen peptide (n=12/group) for 10 weeksTotal, free, and esterified cholesterol levels in the blood decreased in the collagen peptide group. DNA microarray analysis of the liver revealed that expression of the genes related to lipid metabolic process, such as PPAR signaling pathway and fatty acid metabolism, increased in the collagen peptide group compared to the 10% casein group. In contrast, expression of the genes related to unfolded protein response (UPR) and protein level of phospho-IRE1 decreased. Our data suggest that lipid metabolism in the liver was altered by collagen ingestion, which probably results in the decreased levels of blood cholesterol.
Collagen peptide ingestion alters lipid metabolism-related gene expression and the unfolded protein response in mouse liver.
Sex, Age, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
A systems immunology approach identifies the collective impact of 5 miRs in Th2 inflammation.
No sample metadata fields
View SamplesAllergic asthma is a chronic inflammatory disease dominated by a CD4+ T helper 2 (Th2) cell signature. The immune response amplifies in self-enforcing loops, promoting Th2-driven cellular immunity and leaving the host unable to terminate inflammation. Posttranscriptional mechanisms, including miRNAs, are pivotal in maintaining immune-homeostasis. Since an altered expression of various miRNAs has been associated with T cell-driven diseases, including asthma, we hypothesized that miRNAs control mechanisms ensuring Th2 stability and maintenance in the lung. We isolated murine CD4+ Th2 cells from allergic inflamed lungs and profiled gene and microRNA expression.
A systems immunology approach identifies the collective impact of 5 miRs in Th2 inflammation.
No sample metadata fields
View SamplesWe found a new spontaneous mutant mouse, laggard, characterized by general weakness in movements and retardation in growth.
Kif14 mutation causes severe brain malformation and hypomyelination.
Specimen part
View SamplesAnalysis to find splicing variants that are differentially expressed in a highly metastatic stomach cancer cell line, MKN45P, versus its parental cell line, MKN45
Identification of a novel protein isoform derived from cancer-related splicing variants using combined analysis of transcriptome and proteome.
Specimen part, Cell line
View SamplesMicroglia are key regulators of inflammatory response after stroke and brain injury. Here we profiled the microglia transcriptome isolated from a spontaneously hypertensive rat model of focal cerebral ischemia.
Transcriptomic characterization of microglia activation in a rat model of ischemic stroke.
Sex, Age
View SamplesWFS1 gene is coding protein with unknown function but its functional deficiency causes different neuropsychiatric and neuroendocrine syndromes. In the present study we aimed to find the functional networks influenced by the Wfs1 deficiency in the hypothalamus. We performed gene expression profiling (Mouse Gene 1.0 ST Arrays) in Wfs1 deficient mice (ko). Modified t-statistics was used for comparison of groups (wt vs ko). Functional annotation of the alterations in RNA levels was performed with Ingenuity Pathway Analysis. 305 genes were differentially expressed with nominal p-value less than 0.01. FDR adjusted p-values were significant (0.007) only for two genes C4b (t=9.66) and Wfs1 (t=-9.03). However, several genes related to the G-protein signalling were very close to the FDR adjusted significance. For instance, Rgs4 (regulator of G-protein signalling 4) was down-regulated (-0.34, t=-5.4) in Wfs1 deficient mice. Changes in Rgs4 and C4B expression were confirmed by QRT-PCR. In humans, Rgs4 is in the locus for bipolar disease (BPD) and its expression is down-regulated in BPD. C4b is the gene related to the neurodegenerative diseases. In conclusion, hypothalamic gene expression profiling indicates alterations in some functionally relevant molecular pathways explaining the clinical syndrome in the Wolfram syndrome patients.
Hypothalamic gene expression profile indicates a reduction in G protein signaling in the Wfs1 mutant mice.
Specimen part
View SamplesBackground: It is recognized that atherosclerosis can regresses at least in animal models. However, little is known about the mechanisms. We induced regression of advanced atherosclerosis in apolipoprotein E deficient (APOE/) mice and studied underlying mechanisms. Unexpectedly, our study led to the role of interleukin-7 (IL-7) in atherogenesis.
Interleukin-7 induces recruitment of monocytes/macrophages to endothelium.
Sex, Age
View Samples