Filters
Technology
Platform
GSE55079
Rattus norvegicus
36 Downloadable Samples
Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Nkx6.1 regulates islet β-cell proliferation via Nr4a1 and Nr4a3 nuclear receptors.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment
View Samples- Rattus norvegicus
- 20 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
Loss of functional -cell mass is a hallmark of Type 1 and Type 2 diabetes, and methods for restoring these cells are needed. Nkx6.1 induces -cell proliferation, but the pathway by which Nkx6.1 activates -cell expansion has not been defined. Here we demonstrate that Nkx6.1 induces expression of the Nr4a1 and Nr4a3 orphan nuclear receptors, and that these factors are both necessary and sufficient for Nkx6.1-mediated -cell proliferation. Overexpression of the Nr4a receptors results in increased expression of key cell cycle inducers E2F1 and cyclin E1. Furthermore, Nr4a receptors induce components of the anaphase-promoting complex, including Ube2c.
Publication Title
Nkx6.1 regulates islet β-cell proliferation via Nr4a1 and Nr4a3 nuclear receptors.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment
View Samples- Rattus norvegicus
- 16 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
Loss of functional -cell mass is a hallmark of Type 1 and Type 2 diabetes, and methods for restoring these cells are needed. We have previously reported that overexpression of the homeodomain transcription factor Nkx6.1 in rat pancreatic islets induces -cell proliferation and enhances glucose-stimulated insulin secretion, but the pathway by which Nkx6.1 activates -cell expansion has not been defined. Here we demonstrate that Nkx6.1 induces expression of the Nr4a1 and Nr4a3 orphan nuclear receptors, and that these factors are both necessary and sufficient for Nkx6.1-mediated -cell proliferation. Consistent with this finding, global knockout of Nr4a1 results in a decrease in -cell area in neonatal and young mice. Overexpression of Nkx6.1 and the Nr4a receptors results in increased expression of key cell cycle inducers E2F1 and cyclin E1. Furthermore, Nkx6.1 and Nr4a receptors induce components of the anaphase-promoting complex, including Ube2c, resulting in degradation of the cell cycle inhibitor p21CIP1. These studies identify a new bipartite pathway for activation of -cell proliferation, suggesting several new targets for expansion of functional -cell mass.
Publication Title
Nkx6.1 regulates islet β-cell proliferation via Nr4a1 and Nr4a3 nuclear receptors.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment
View Samples- Mus musculus
- 32 Downloadable Samples
Illumina HiSeq 2500
Description
As somatic cells are converted to iPSCs, their chromatin undergoes wide-ranging rearrangements that affect the ratio of euchromatin-to-heterochromatin, DNA methylation patterns and the regulation of enhancers and promoters. The molecular machinery underlying this process remains largely unknown. Here, we show that Dppa2 and Dppa4, two thus far poorly characterized mES-specific factors, play a key role in resetting the epigenome to a pluripotent configuration. They function as a heterodimer, are induced in late reprogramming intermediates, and are required for reprogramming. When overexpressed with OSKM factors, Dppa2/4 yield reprogramming efficiencies exceeding 75% of the starting culture and accelerate reprogramming kinetics, generating iPSCs in as little as 4 days. When chromatinbound, Dppa2/4 initiate global chromatin decompaction via the DNA damage response pathway, which subsequently activates mES promoters and enhancers and enables an efficient progression to pluripotency. Our work provides critical insights into how the epigenome is remodeled during cell fate transitions. Overall design: Transcriptional regulation by the Dppa2 and Dppa4 investigated by ChIP-Seq and RNA-Seq
Publication Title
Dppa2/4 Facilitate Epigenetic Remodeling during Reprogramming to Pluripotency.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 16 Downloadable Samples
- IlluminaHiSeq1500
Description
RNA sequencing data of macrophages after differentiation in the presence of TPC1 thyroid cancer cell line Overall design: Co-incubation in trans-well system between TPC1 cell lines and human primary macrophages
Publication Title
Transcriptional and metabolic reprogramming induce an inflammatory phenotype in non-medullary thyroid carcinoma-induced macrophages.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Glomerular RNA comparison between wild-type and podocyte specific deletion of the PTIP gene in 1 month old kidneys. The PTIP gene was deleted using a floxed allele and a Podocin-Cre driver strain.
Publication Title
Altering a histone H3K4 methylation pathway in glomerular podocytes promotes a chronic disease phenotype.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 351 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Transcriptome analysis of Wnt3a-treated triple-negative breast cancer cells.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 176 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Transcriptome analysis of 130 breast cancer samples (41 TNBC; 30 Her2; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines.
Publication Title
Transcriptome analysis of Wnt3a-treated triple-negative breast cancer cells.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 175 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Transcriptome analysis of 130 breast cancer samples (41 TNBC; 30 Her2; 30 Luminal B and 29 Luminal A), 11 normal breast tissue samples and 14 TNBC cell lines.
Publication Title
Transcriptome analysis of Wnt3a-treated triple-negative breast cancer cells.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 35 Downloadable Samples
- Affymetrix Human Gene 1.1 ST Array (hugene11st)
Description
We analyzed the transcriptome of two different triple negative breast cancer (TNBC) cell lines to define a comprehensive list of Wnt target genes. Cells were treated with Wnt3a for 6h, 12h or 24h. We found up-regulated and down-regulated genes in response to Wnt3a treatment. They are involved in the Wnt pathway itself, and also in TGF, p53 and Hedgehog pathways. Thorough characterization of these novel potential Wnt target genes may reveal new regulators of the canonical Wnt pathway. The comparison of our list of Wnt target genes with those published in other cellular contexts confirms the notion that Wnt target genes are tissue-, cell line- and treatment-specific.
Publication Title
Transcriptome analysis of Wnt3a-treated triple-negative breast cancer cells.
Sample Metadata Fields
Cell line
View Samples