Gene expression of genetically related and unrelated human embryonic stem cell lines
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE15294 | GEO | 2009/03/20
SECONDARY ACCESSION(S): PRJNA116585
REPOSITORIES: GEO
Similar Datasets
Project description:Gene expression of sibling human ES cell lines are more similar to each other than unrelated cell lines. Undifferentiated human embryonic stem cells were used for analysis. We sought to determine whether genetic differences underly variations between different human ES cell lines. Sibling cell lines that are genetically closer than non-sibling cell provided the opportunity to determine this. We found that sibling cell lines are more similar in their gene expression patterns than unrelated cell lines. 16 Samples. HUES 55-58 are related, so are HUES 50 and HUES51, and so are HUES 62 and HUES 63.
2009-03-19 | E-GEOD-15294 | biostudies-arrayexpress
Project description:3 different ES cell lines were compared in order to determine whether there are significant expression profile differences between ES cell lines, or whether the constraints of maintaining pluripotency in culture force a similar expression profile on cell lines derived from disparate sources. Our results indicate that the latter is more likely. We identified 21 genes that were significantly differentially regulated, either on comparison with the pooled control, or on direct comparison of individual ES cell line data from different slides. Using semi-quantitative RT-PCR on 3 separate isolates from each cell line, we have confirmed 4 of these genes as consistently differentially regulated, Hprt, and 3 others. We would conclude therefore that different ES cell lines at the same passage number in identical culture conditions show very similar expression profiles. Keywords: cell type comparison
2007-08-03 | GSE8625 | GEO
Project description:Induced pluripotent stem cells (iPSC) were prepared from multiple subjects with Ataxia-telangiectasia (A-T). iPSC were prepared from activated T-cells using commercial Sendai virus to deliver reprogramming factors. ATM protein-expressing and non-expressing cultures would found in multiple sub-lines (sub-lines are generated from distinct founder colonies of cells) from a single subject (Q3). Genetic analysis determined that all sub-lines originated from the same subject and were likely the product of spontaneous reversion by gene correction. To compare gene expression profiles, three iPSC samples were assayed: (1) A reverted ATM+/- subline from subject Q3, (2) An ATM-/- subline from subject Q3, and (3) An iPSC line from an unrelated ATM-/- subject, Q1. Analysis reveals that the majority of significantly-different genes between the unrelated ATM-/- line (Q1SA) and the reverted ATM+/- line (Q3SC) was due to genetic variation between individuals. A more focused set of contrasting genes could be identified between the isogenic Q3-derived lines (Q3SA, ATM-/-, vs. Q3SC, ATM+/-). The 206 transcripts that are significantly different point to a differential regulation of p53-associated pathways.
2015-11-19 | GSE71878 | GEO
Project description:Remarkably little is known about the transcriptional profiles of human embryonic stem (ES) cells or the molecular mechanisms that underlie their pluripotency. To identify commonalties among the transcriptional profiles of different human pluripotent cells and to search for clues into the genesis of human germ cell tumors, we compared the expression profiles of human ES cell lines, human germ cell tumor cell lines and tumor samples, somatic cell lines, and testicular tissue samples by using cDNA microarray analysis. Hierarchical cluster analysis of gene expression profiles showed that the five independent human ES cell lines clustered tightly together, reflecting highly similar expression profiles. The gene expression patterns of human ES cell lines showed many similarities with the human embryonal carcinoma cell samples and more distantly with the seminoma samples. We identified 895 genes that were expressed at significantly greater levels in human ES and embryonal carcinoma cell lines than in control samples. These genes are candidates for involvement in the maintenance of a pluripotent, undifferentiated phenotype. An all pairs experiment design type is where all labeled extracts are compared to every other labeled extract. Keywords: all_pairs
2005-12-29 | GSE3921 | GEO
Project description:Hematopoiesis generated from human embryonic stem cells (ES) and induced pluripotent stem cells (iPS) are unprecedented resources for cell therapy. We compared hematopoietic differentiation potentials from ES and iPS cell lines originated from various donors and derived them using integrative and non-integrative vectors. Significant differences in differentiation toward hematopoietic lineage were observed among ES and iPS. The ability of engraftment of iPS or ES-derived cells in NOG mice varied among the lines with low levels of chimerism. iPS generated from ES cell-derived mesenchymal stem cells (MSC) reproduce a similar hematopoietic outcome compared to their parental ES cell line. We were not able to identify any specific hematopoietic transcription factors that allow to distinguish between good versus poor hematopoiesis in undifferentiated ES or iPS cell lines. However, microarray analysis showed genes differentially expressed in ES and iPS cell lines according to their hematopoietic potential. These results demonstrate the influence of genetic background in variation of hematopoietic potential rather than the reprogramming process.
2015-11-17 | GSE75051 | GEO
Project description:Induced pluripotent stem cells (iPSC) were prepared from multiple subjects with Ataxia-telangiectasia (A-T). iPSC were prepared from activated T-cells using commercial Sendai virus to deliver reprogramming factors. ATM protein-expressing and non-expressing cultures would found in multiple sub-lines (sub-lines are generated from distinct founder colonies of cells) from a single subject (Q3). Genetic analysis determined that all sub-lines originated from the same subject and were likely the product of spontaneous reversion by gene correction. To compare gene expression profiles, three iPSC samples were assayed: (1) A reverted ATM+/- subline from subject Q3, (2) An ATM-/- subline from subject Q3, and (3) An iPSC line from an unrelated ATM-/- subject, Q1. Analysis reveals that the majority of significantly-different genes between the unrelated ATM-/- line (Q1SA) and the reverted ATM+/- line (Q3SC) was due to genetic variation between individuals. A more focused set of contrasting genes could be identified between the isogenic Q3-derived lines (Q3SA, ATM-/-, vs. Q3SC, ATM+/-). The 206 transcripts that are significantly different point to a differential regulation of p53-associated pathways. Total cellular RNA was prepared from each iPSC culture. Different passage numbers or sister cultures were used as replicates (n=2).
2015-11-19 | E-GEOD-71878 | biostudies-arrayexpress
Project description:Gene expression of genetically related and unrelated human embryonic stem cell lines
| PRJNA116585 | ENA
Project description:3 different ES cell lines were compared in order to determine whether there are significant expression profile differences between ES cell lines, or whether the constraints of maintaining pluripotency in culture force a similar expression profile on cell lines derived from disparate sources. Our results indicate that the latter is more likely. We identified 21 genes that were significantly differentially regulated, either on comparison with the pooled control, or on direct comparison of individual ES cell line data from different slides. Using semi-quantitative RT-PCR on 3 separate isolates from each cell line, we have confirmed 4 of these genes as consistently differentially regulated, Hprt, and 3 others. We would conclude therefore that different ES cell lines at the same passage number in identical culture conditions show very similar expression profiles. Keywords: cell type comparison Cardiff University Array Facility NIA 15K slides were used in conjunction with 3 different RNA isolates from each of the ES cell lines. A pooled control was assembled using equal quantities of cells from each cell line, RNA was extracted and labelled, for use on every slide. Fluor switches were carried out, and 12 replicates were used for each cell line (3 biological replicates). The ES cell lines were each derived from different sources; IMT11 cells are derived from 129 strain mice. HM1 cells are also derived from 129 mice, but are missing a functional copy of Hprt. SHBl6.3 cells are derived from the less permissive C57Bl6/J mouse strain. Data were analysed as described in the GSM submissions.
2007-08-03 | E-GEOD-8625 | biostudies-arrayexpress
Project description:Knowledge of both the global chromatin structure and the gene expression programs of human embryonic stem (ES) cells and induced pluripotent stem (iPS) cells should provide a robust means to assess whether the genomes of these cells have similar pluripotent states. Recent studies have suggested that ES and iPS cells represent different pluripotent states with substantially different gene expression profiles. We describe here a comparison of global chromatin structure and gene expression data for a panel of human ES and iPS cells. Genome-wide maps of nucleosomes with histone H3K4me3 and H3K27me3 modifications indicate that there is little difference between ES and iPS cells with respect to these marks. Gene expression profiles confirm that the transcriptional programs of ES and iPS cells show very few consistent differences. Although some variation in chromatin structure and gene expression was observed in these cell lines, these variations did not serve to distinguish ES from iPS cells. Examination of gene expression in 7 human ES cell lines, 8 human iPS cell lines, and 2 fibroblast cell line2.
2010-08-09 | E-GEOD-23402 | biostudies-arrayexpress
Project description:Knowledge of both the global chromatin structure and the gene expression programs of human embryonic stem (ES) cells and induced pluripotent stem (iPS) cells should provide a robust means to assess whether the genomes of these cells have similar pluripotent states. Recent studies have suggested that ES and iPS cells represent different pluripotent states with substantially different gene expression profiles. We describe here a comparison of global chromatin structure and gene expression data for a panel of human ES and iPS cells. Genome-wide maps of nucleosomes with histone H3K4me3 and H3K27me3 modifications indicate that there is little difference between ES and iPS cells with respect to these marks. Gene expression profiles confirm that the transcriptional programs of ES and iPS cells show very few consistent differences. Although some variation in chromatin structure and gene expression was observed in these cell lines, these variations did not serve to distinguish ES from iPS cells. Examination of two histone modifications (H3K4me3 and H3K27me3) in 6 human ES cell lines, 8 human iPS cell lines, and 1 fibroblast cell line.
2010-08-09 | E-GEOD-23455 | biostudies-arrayexpress