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Mus musculus
6 Downloadable Samples
Description
BackgroundAcute coronary syndrome (ACS) is sometimes accompanied by accelerated coagulability, lipid metabolism, and inflammatory responses, which are not attributable to the cardiac events alone. We hypothesized that the liver plays a pivotal role in the pathophysiology of ACS. We simultaneously analyzed the gene expression profiles of the liver and heart during acute myocardial ischemia in mice.
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No associated publication
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Sex, Specimen part
View Samples- Mus musculus
- 10 Downloadable Samples
Description
Gan mice express Wnt1, Ptgs2, and Ptges, which develop inflammation-associated gastric tumors (Oshima et al, Gastroenterology 131: 1086, 2006). We examined the role of TNF-alpha in tumorigenesis by construction of TNF-/- Gan mice. We also examined genetic background difference in tumor phenotype by changing Gan mouse background from C57BL/6(B6) to BALB/c.
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No associated publication
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Specimen part
View Samples- Mus musculus
- 12 Downloadable Samples
Description
Optimal treatment for nonalcoholic steatohepatitis (NASH) has not yet been established, particularly for individuals without diabetes.
Publication Title
Metformin prevents and reverses inflammation in a non-diabetic mouse model of nonalcoholic steatohepatitis.
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Specimen part
View Samples- Mus musculus
- 4 Downloadable Samples
Description
In skeletal muscle differentiation, muscle-specific genes are regulated by two groups of transcription factors, the MyoD and MEF2 families, which work together to drive the differentiation process. Here we show that ERK5 regulates muscle cell fusion through Klf transcription factors. The inhibition of ERK5 activity suppresses muscle cell fusion with minimal effects on the expression of MyoD, MEF2, and their target genes. Promoter analysis coupled to microarray assay reveals that Klf-binding motifs are highly enriched in the promoter regions of ERK5-dependent upregulated genes. Remarkably, Klf2 and Klf4 expression are also upregulated during differentiation in an ERK5-dependent manner, and knockdown of Klf2 or Klf4 specifically suppresses muscle cell fusion. Moreover, we show that the Sp1 transcription factor links ERK5 to Klf2/4, and that nephronectin, a Klf transcriptional target, is involved in muscle cell fusion. Therefore, an ERK5/Sp1/Klf module plays a key role in the fusion process during skeletal muscle differentiation.
Publication Title
ERK5 regulates muscle cell fusion through Klf transcription factors.
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Cell line, Time
View Samples- Mus musculus
- 8 Downloadable Samples
Description
Forced expression of Bmi1 accelerated the self-renewal of hepatic stem/progenitor cells and eventually induced their transformation in an in vivo transplant model. The Ink4a/Arf locus, which encodes a cyclin-dependent kinase inhibitor, p16Ink4a, and a tumor suppressor, p19Arf, is a pivotal target of Bmi1. Therefore, it would be of importance to understand the contribution of the Ink4a/Arf locus to Bmi1 oncogenic functions in cancer and search for as-yet-unknown Bmi1 target genes other than Ink4a/Arf. We used microarrays to explore novel candidate downstream targets for Bmi1 in hepatic stem/progenitor cells
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No associated publication
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Specimen part
View Samples- Mus musculus
- 4 Downloadable Samples
Description
The polycomb group (PcG) proteins function in gene silencing through histone modifications. They form chromatin-associated multiprotein complexes, termed polycomb repressive complex (PRC) 1 and PRC2. These two complexes work in a coordinated manner in the maintenance of cellular memories through transcriptional repression of target genes. EZH2 is a catalytic component of PRC2 and trimethylates histone H3 at lysine 27 to transcriptionally repress the target genes. PcG proteins have been characterized as general regulators of stem cells, but recent works also unveiled their critical roles in cancer.
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No associated publication
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No sample metadata fields
View Samples- Mus musculus
- 2 Downloadable Samples
Description
Comparison between livers of FLS mice and livers of DS (DD shionogi) mice
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No associated publication
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Specimen part
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GSE12637- Mus musculus
- 2 Downloadable Samples
Description
This experiment is to identify genes that are regulated by pRb in AC61 cells. AC61 cells were derived from a C-cell adenocarcinoma developed in an Rb+/-N-ras-/- mouse.
Publication Title
Rb Regulates DNA damage response and cellular senescence through E2F-dependent suppression of N-ras isoprenylation.
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No sample metadata fields
View Samples- Mus musculus
- 2 Downloadable Samples
Description
To identify p45 target genes, we conducted gene expression profiling with p45-null megakaryocytes cultured from E14.5 fetal liver. Many genes encoding membrane proteins and enzymes related to platelet function, including Txas, Glycoprotein 6 (Gp6) and Selectin P (Selp), were repressed in the absence of p45. Considering the similar DNA binding specificity of p45 and Nrf2 in vitro, we expected p45 to activate cytoprotective genes that are established Nrf2 targets. However, the expression of numerous detoxifying enzymes and stress-responsive genes, including NAD(P)H:quinone oxidoreductase (Nqo1), were increased in the absence of p45.
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No associated publication
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Sex, Specimen part
View Samples- Mus musculus
- 2 Downloadable Samples
Description
Perilipin A (PeriA) exclusively locates on adipocyte lipid droplets and is essential for lipid storage and lipolysis. Adipocyte specific overexpression of PeriA caused resistance to diet-induced obesity and resulted in improved insulin sensitivity. In order to better understand the biological basis for this observed phenotype we performed DNA microarray analysis on white adipose tissue (WAT) from PeriA transgenic (Tg) and control wildtype (WT) mice.
Publication Title
Perilipin overexpression in white adipose tissue induces a brown fat-like phenotype.
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Sex, Specimen part
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