Gene expression of Ethanol-treated hepatocytes from WT and transglutaminase 2 knockout mice
Role of transglutaminase 2 in liver injury via cross-linking and silencing of transcription factor Sp1.
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View SamplesWaldenstom macroglobulinemia (WM) with 6q del is still unknown. In the present study, we analyzed gene expression signiture of WM with 6q del.
Gene Expression Profile Signature of Aggressive Waldenström Macroglobulinemia with Chromosome 6q Deletion.
Specimen part, Disease
View SamplesTAZ-deficient mice have the abnormalities in the lung development. We expect the comparison of the gene expression profiles of TAZ-deficient and wild-type lungs would reveal the underlying mechanisms.
Transcriptional coactivator with PDZ-binding motif is essential for normal alveolarization in mice.
No sample metadata fields
View SamplesThe onset of the liver inflamentation in the Sox17+/- embryos.
Sox17 haploinsufficiency results in perinatal biliary atresia and hepatitis in C57BL/6 background mice.
Specimen part
View SamplesGene expression in self-renewing epithelial tissues is controlled by cis- and trans-activating regulatory factors that mediate responses to exogenous agents capable of causing tissue damage, infection, inflammation, or tumorigenesis. We used network construction methods to analyze the genetic architecture of gene expression in normal mouse skin in a cross between tumor-susceptible Mus musculus and tumor-resistant Mus spretus. We demonstrate that gene expression motifs representing different constituent cell types within the skin such as hair follicle cells, haematopoietic cells, and melanocytes are under separate genetic control. Motifs associated with inflammation, epidermal barrier function and proliferation are differentially regulated in mice susceptible or resistant to tumor development. The intestinal stem cell marker Lgr5 is identified as a candidate master regulator of hair follicle gene expression, and the Vitamin D receptor (Vdr) links epidermal barrier function, inflammation, and tumor susceptibility.
Genetic architecture of mouse skin inflammation and tumour susceptibility.
No sample metadata fields
View SamplesExpression profile of liver of ICR mice (13-week old) treated with control diet (CRF-1) or CRF-1 containing 500 ppm diosgenin for 4 weeks.
Chemoprevention of azoxymethane/dextran sodium sulfate-induced mouse colon carcinogenesis by freeze-dried yam sanyaku and its constituent diosgenin.
Specimen part, Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
DNA methylation profiling of embryonic stem cell differentiation into the three germ layers.
Sex, Specimen part
View SamplesEmbryogenesis is tightly regulated by multiple levels of epigenetic systems such as DNA methylation, histone modification, and chromatin remodeling. DNA methylation patterns are erased in primordial germ cells and in the interval immediately following fertilization. Subsequent reprogramming occurs by de novo methylation and demethylation. Variance of DNA methylation patterns between different cell types is not well understood. Here, using methylated DNA immunoprecipitation and tiling array technology, we have comprehensively analysed DNA methylation patterns at proximal promoter regions in mouse embryonic stem (ES) cells, ES cell-derived early germ layers (ectoderm, endoderm and mesoderm) and four adult tissues (brain, liver, skeletal muscle and sperm). Most of the methylated regions in the three germ layers and in the three adult somatic tissues are shared in common. This commonly methylated gene set is enriched in germ cell associated genes that are generally transcriptionally inactive in somatic cells. We also compared DNA methylation patterns with global mapping of histone H3 lysine 4/27 trimethylation, and found that gain of DNA methylation correlates with loss of histone H3 lysine 4 trimethylation. Taken together, our findings indicate that differentiation from ES cells to the three germ layers is accompanied by an increase in the number of commonly methylated DNA regions and that these tissue-specific alterations are present for only a small number of genes. Our findings indicate that DNA methylation at the proximal promoter regions of commonly methylated genes act as an irreversible mark which fixes somatic lineage by repressing transcription of germ cell specific genes.
DNA methylation profiling of embryonic stem cell differentiation into the three germ layers.
Sex, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Obesity resistance and increased hepatic expression of catabolism-related mRNAs in Cnot3+/- mice.
Sex, Specimen part
View SamplesEpigenetically silenced Ink4a-Arf locus is activated by loss of H3K27me3 in cellular senescence, where secreted factor expression is also involved. Here we analyzed epigenome and transcriptome alteration during Ras-induced senescence using mouse embryonic fibroblast (MEF). Seventeen genes with H3K27me3 loss and H3K4me3 gain showed marked upregulation, including p16Ink4a and Bmp2, a secreted factor for BMP/SMAD signal. Smad6, specific BMP/SMAD pathway inhibitor, was identified as the only one gene showing de novo H3K27 trimethylation with H3K4me3, resulting in strong repression. Ras-activated cells senesced with SMAD1/5/8 phosphorylation, and they escaped from senescence with decreased SMAD1/5/8 phosphorylation when introducing Smad6 or knocking-down Bmp2.
Activation of Bmp2-Smad1 signal and its regulation by coordinated alteration of H3K27 trimethylation in Ras-induced senescence.
Specimen part, Treatment
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