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GSE13877
Homo sapiens
36 Downloadable Samples
Illumina human-6 v2.0 expression beadchip
Description
In the following experiment, three different hESC cell lines (HES2, MEL1 and H9) were grown in the presence of KOSR, KOSR or mTESR containing media respectively. KOSR (Knockout serum replacement medium) is a standard media allowing the growth of hESC without the need for manual passaging - Enzymatic passaging is used instread. mTESR (Ludwig et al., 2007) is a media allowing the growth of hESC on matrigel with enzymatic passaging. At day 7 after passaging, these cells were FACs sorted for the presence of GCTM-2 and CD9 into 4 distinct fractions (p4: GCTM-2-neg, CD9-neg; p5: GCTM-2-low, CD9-low; p6: GCTM-2-medium, CD9-medium and p7: GCTM-2-high, CD9-high). For each cell line-subfraction combination, RNA was harvested and subject to microarray.
Publication Title
Identification of human embryonic stem cell surface markers by combined membrane-polysome translation state array analysis and immunotranscriptional profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 12 Downloadable Samples
- Illumina human-6 v2.0 expression beadchip
Description
HES2 ESCs were grown in standard ES culture conditions. After 1 week, these cells were FACs sorted for the presence of GCTM-2 and CD9.
Publication Title
Identification of human embryonic stem cell surface markers by combined membrane-polysome translation state array analysis and immunotranscriptional profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 6 Downloadable Samples
- Illumina human-6 v2.0 expression beadchip
Description
The membrane fraction and the cytosolic fraction of HES2 cells were collected and subjected to microarray. The experiment was performed in triplicate
Publication Title
Identification of human embryonic stem cell surface markers by combined membrane-polysome translation state array analysis and immunotranscriptional profiling.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 6 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
Ascorbate activates CD30 expression and causes widespread specific demethylation of the epigenome of serum free cultured hESC.
Publication Title
Vitamin C promotes widespread yet specific DNA demethylation of the epigenome in human embryonic stem cells.
Sample Metadata Fields
Age, Specimen part
View Samples- Homo sapiens
- 24 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
Two independent induced pluripotent stem cell lines: ES4CL1 (derived from foreskin) and MR90C2 (derived from lung Fibroblast) were maintained on inactivated mouse embryonic fibroblast (MEF) feeder cells in the presence of ESC media containing DMEM, 20% knock-out serum replacement with 100ng/mL of bFGF. 7 days after seeding, cells were harvested in TrypLE Express and FACs sorted using antibodies detecting the presence of cell surface antigens GCTM-2 and CD9.
Publication Title
Identification of unsafe human induced pluripotent stem cell lines using a robust surrogate assay for pluripotency.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 12 Downloadable Samples
- Illumina human-6 v2.0 expression beadchip
Description
HES4 hESC were cultured in serum media and maintained on a layer of mouse embryonic fibroblast feeder cells at a density of 6 x 104 cells/cm2. For differentiation: hESC were differentiated for a total of 14 days. Differentiation was induced by passaging 4 human ES cell pieces onto 12 well plates seeded with 0.67 x 10E4 cells/cm2. Cells were maintained in media containing 20% FCS for 2 days before media containing 5% FCS was used. Reduced serum media was changed every second day for the remaining 12 days
Publication Title
Subfractionation of differentiating human embryonic stem cell populations allows the isolation of a mesodermal population enriched for intermediate mesoderm and putative renal progenitors.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 54 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Down syndrome (DS) is the most frequent cause of human congenital mental retardation. Cognitive deficits in DS result from perturbations of normal cellular processes both during development and in adult tissues, but the mechanisms underlying DS etiology remain poorly understood. To assess the ability of iPSCs to model DS phenotypes, as a prototypical complex human disease, we generated bona-fide DS and wild-type (WT) non-viral iPSCs by episomal reprogramming. DS iPSCs selectively overexpressed chromosome 21 genes, consistent with gene dosage, which was associated with deregulation of thousands of genes throughout the genome. DS and WT iPSCs were neurally converted at >95% efficiency, and had remarkably similar lineage potency, differentiation kinetics, proliferation and axon extension at early time points. However, at later time points DS cultures showed a two-fold bias towards glial lineages.
Publication Title
Integration-free induced pluripotent stem cells model genetic and neural developmental features of down syndrome etiology.
Sample Metadata Fields
Sex, Specimen part, Disease, Disease stage, Cell line
View Samples- Homo sapiens
- 79 Downloadable Samples
- Sentrix Human-6 Expression BeadChip
Description
The functional consequences of missense variants in disease genes are difficult to predict. We assessed if gene expression profiles could distinguish between BRCA1 or BRCA2 pathogenic truncating and missense mutation carriers and familial breast cancer cases whose disease was not attributable to BRCA1 or BRCA2 mutations (BRCAX cases). 72 cell lines from affected women in high-risk breast-ovarian families were assayed after exposure to ionising irradiation, including 23 BRCA1 carriers, 22 BRCA2 carriers, and 27 BRCAX individuals. A subset of 10 BRCAX individuals carried rare BRCA1/2 sequence variants considered to be of low clinical significance (LCS). BRCA1 and BRCA2 mutation carriers had similar expression profiles, with some subclustering of missense mutation carriers. The majority of BRCAX individuals formed a distinct cluster, but BRCAX individuals with LCS variants had expression profiles similar to BRCA1/2 mutation carriers. Gaussian Process Classifier predicted BRCA1, BRCA2 and BRCAX status with a maximum of 62% accuracy, and prediction accuracy decreased with inclusion of BRCAX samples carrying an LCS variant, and inclusion of pathogenic missense carriers. Similarly, prediction of mutation status with gene lists derived using Support Vector Machines was good for BRCAX samples without an LCS variant (82-94%), poor for BRCAX with an LCS (40-50%), and improved for pathogenic BRCA1/2 mutation carriers when the gene list used for prediction was appropriate to mutation effect being tested (71-100%). This study indicates that mutation effect, and presence of rare variants possibly associated with a low risk of cancer, must be considered in the development of array-based assays of variant pathogenicity.
Publication Title
BRCA1 and BRCA2 missense variants of high and low clinical significance influence lymphoblastoid cell line post-irradiation gene expression.
Sample Metadata Fields
Sex, Age
View Samples- Mus musculus
- 37 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
The long term objective is to create an encyclopedia of the expression levels of all genes in multiple components of the developing kidney. The central thesis is straightforward. The combination of laser capture microdissection (LCM) plus microarray analysis offers a powerful, efficient and effective method for the creation of a global gene expression atlas of the developing kidney. Microarrays with essentially complete genome coverage can be used to quantitate expression levels of every gene in laser capture microdissected components of the developing kidney. The ensuing rapid read-out provides an expression atlas that is more sensitive, more economical and more complete than would be possible by in situ hybridizations alone.
Publication Title
Analysis of early nephron patterning reveals a role for distal RV proliferation in fusion to the ureteric tip via a cap mesenchyme-derived connecting segment.
Sample Metadata Fields
Sex
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Our laboratory's interest is in understanding the molecular principles that underlie the regional organization of the mammalian metanephric kidney. Our goal is to generate a detailed spatial map of the cellular expression of selected regulatory genes during mammalian kidney development. The goal of this study is to identify a population of genes that are enriched in the renal vesicle (RV) and its derivatives using Wnt4 mutants.
Publication Title
Analysis of early nephron patterning reveals a role for distal RV proliferation in fusion to the ureteric tip via a cap mesenchyme-derived connecting segment.
Sample Metadata Fields
Sex
View Samples