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GSE74677
Mus musculus
8 Downloadable Samples
Description
To examine the role of SPS1 in mammals, we generated a Sps1 knockout mouse and found that systemic SPS1 deficiency was embryonic lethal. Embryos were clearly underdeveloped by E8.5 and virtually reabsorbed by E14.5. Removal of Sps1 specifically in hepatocytes using Albumin-cre preserved viability, but significantly affected expression of a large number of mRNAs involved in cancer, embryonic development and the glutathione system. Particularly notable was the extreme deficiency of glutaredoxin 1 (GLRX1) and glutathione-S-transferase omega 1. To assess these phenotypes at the cellular level, we targeted the removal of SPS1 in F9 cells, a mouse embryonal carcinoma cell line, which recapitulated changes in the glutathione system proteins. We further found that several malignant characteristics of SPS1-deficient F9 cells were reversed, suggesting that SPS1 has a role in supporting and/or sustaining cancer. In addition, the increased ROS levels observed in F9 SPS1/GLRX1 deficient cells were reversed and became more like those in F9 SPS1 sufficient cells by overexpressing mouse or human GLRX1. The results suggest that SPS1 is an essential mammalian enzyme with roles in regulating redox homeostasis and controlling cell growth.
Publication Title
Selenophosphate synthetase 1 is an essential protein with roles in regulation of redox homoeostasis in mammals.
Sample Metadata Fields
Sex, Specimen part
View Samples- Mus musculus
- 51 Downloadable Samples
Description
To characterize genes, pathways, and transcriptional regulators enriched in the mouse cornea, we compared the expression profiles of whole mouse cornea, bladder, esophagus, lung, proximal small intestine, skin, stomach, and trachea.
Publication Title
The Ets transcription factor EHF as a regulator of cornea epithelial cell identity.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 4 Downloadable Samples
Description
-catenin signaling is required for hair follicle development, but it is unknown whether it is sufficient to activate expression of hair follicle genes in embryonic skin. To address this we profiled gene expression in dermis from E15.5 KRT14-Cre Ctnnb1(Ex3)fl/+ embryos carrying an activating mutation in epithelial beta-catenin, and control littermate embryos.
Publication Title
Molecular heterogeneity in acute renal allograft rejection identified by DNA microarray profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 4 Downloadable Samples
Description
-catenin signaling is required for hair follicle development, but it is unknown whether it is sufficient to activate expression of hair follicle genes in embryonic skin. To address this we profiled gene expression in epidermis from E15.5 KRT14-Cre Ctnnb1(Ex3)fl/+ embryos carrying an activating mutation in epithelial beta-catenin, and control littermate embryos.
Publication Title
Molecular heterogeneity in acute renal allograft rejection identified by DNA microarray profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 3 Downloadable Samples
Description
-catenin signaling is required for hair follicle development, but it is unknown whether it is sufficient to activate expression of hair follicle genes in embryonic skin. To address this we profiled gene expression in skin dissected from E14.5 KRT14-Cre Ctnnb1(Ex3)fl/+ embryos carrying an activating mutation in epithelial beta-catenin, and control littermate embryos.
Publication Title
Molecular heterogeneity in acute renal allograft rejection identified by DNA microarray profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 5 Downloadable Samples
Description
Several studies have shown that bone mineral density (BMD), a clinically measurable predictor of osteoporotic fracture, is the sum of genetic and environmental influences. In addition, serum IGF-1 levels have been correlated to both BMD and fracture risk. We previously identified a Quantitative Trait Locus (QTL) for Bone Mineral Density (BMD) on mouse Chromosome (Chr) 6 that overlaps a QTL for serum IGF-1. The B6.C3H-6T (6T) congenic mouse is homozygous for C57BL/6J (B6) alleles across the genome except for a 30 cM region on Chr 6 that is homozygous for C3H/HeJ (C3H) alleles. This mouse was created to study biology behind both the BMD and the serum IGF-1 QTLs and to identify the gene(s) underlying these QTLs. Female 6T mice have lower BMD and lower serum IGF-1 levels at all ages measured. As the liver is the major source of serum IGF-1, we examined differential expression in the livers of fasted female B6 and 6T mice by microarray.
Publication Title
A chromosomal inversion within a quantitative trait locus has a major effect on adipogenesis and osteoblastogenesis.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 29 Downloadable Samples
Description
The gene expression profile of peripheral Foxp3+ natural regulatory T cells isolated from Foxp3/EGFP bicistronic mice was compared to that of in vitro-induced regulatory T cells and to CD4+ conventional (Foxp3-) T cells. The role of the regulatory T cell transcription factor Foxp3 in shaping the transcriptosomes of natural and induced regulatory T cells was analyzed using mice expressing a mutant FOXP3-EGFP fusion protein (Foxp3deltaEGFP).
Publication Title
A central role for induced regulatory T cells in tolerance induction in experimental colitis.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 16 Downloadable Samples
Description
Lineage commitment during Embryonic Stem Cells (ESCs) differentiation is controlled not only by a gamut of transcription factors but also by epigenetic events, mainly histone deacetylation and promoter DNA methylation. Moreover, the DNA demethylation agent 5-Aza-2-deoxycytidine (AzadC) has been widely described in the literature as an effective chemical stimulus used to promote cardiomyogenic differentiation in various stem cell types; however, its toxicity and instability complicate its use. Thus, the purpose of this study was to examine the effects of zebularine, a stable and non-toxic DNA cytosine methylation inhibitor, on ESCs differentiation. Herein are the Affymetrix Expression data obtained from RNA of murine ESCs treated with zebularine.
Publication Title
Zebularine regulates early stages of mESC differentiation: effect on cardiac commitment.
Sample Metadata Fields
Specimen part, Cell line, Treatment
View Samples- Mus musculus
- 20 Downloadable Samples
Description
Inflammation has pleiotropic effects on carcinogenesis and tumor progression. Signaling through the adaptor protein MyD88 promotes carcinogenesis in several chemically induced cancer models. Interestingly, we observed a protective role for MyD88 in the development of AOM/DSS colitis-associated cancer. The inability of Myd88-/- mice to heal ulcers generated upon injury creates an inflammatory environment that increases the frequency of mutations and results in a dramatic increase in adenoma formation and cancer progression. Susceptibility to colitis development and enhanced polyp formation were also observed in Il18-/- mice upon AOM/DSS treatment, suggesting that the phenotype of MyD88 knockouts is in part due to their inability to signal through the IL-18 receptor. This study revealed a previously unknown level of complexity surrounding MyD88 activities downstream of different receptors that differentially impact tissue homeostasis and carcinogenesis.
Publication Title
MyD88-mediated signaling prevents development of adenocarcinomas of the colon: role of interleukin 18.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 18 Downloadable Samples
Description
We analyzed expression changes between JAK2V617F positive bone marrow cells and JAK2V617F negative cells
Publication Title
Autocrine Tnf signaling favors malignant cells in myelofibrosis in a Tnfr2-dependent fashion.
Sample Metadata Fields
Specimen part, Treatment
View Samples