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Human Pluripotent Cell Derived Endothelial Cell Characterization

ABSTRACT: Human ES or iPS Cells were differentiated into endothelial cells (ECs) defined by expression of CD31 (PECAM1) and CD144 (VE-Cadherin) on the cell surface. All ES or iPS derived ECs were greater than 90% double positive for these two markers. These in vitro derived ECs were compared to each other and to ECs from primary cell sources; arterial (aortic Ecs), venous (saphenous vein) and lymphatic. ES and iPS cells were differentiated into Ecs using a directed differentiation protocol using sequential addition of growth factors to recapitulate endogenous differentiation (FGF, BMP4, Activin, VEGF). These ECs were grown until 21 days after the start of differentiation. Primary cells were obtained from a commercial vendor and grown to passage 3 to minimize cellular senescence and in vitro artifacts. The RNA was cleaned and DNAse digested on RNeasy columns (Qiagen, Valencia, CA). RNA was amplified, fragmented and labeled using NuGEN Technologies Applause Plus kits and the manufacturer's instructions. Labeled samples were then hybridized to Affymetrix Human Gene 1.0 ST GeneChips. The GeneChips were then washed and stained on Affymetrix 450 Fluidics Stations and scanned on an Affymetrix 3000 Scanner according to standard protocols.

ORGANISM(S): Homo sapiens

SUBMITTER: Deepak Srivastava

PROVIDER: E-GEOD-37631 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Human Pluripotent Cell Derived Endothelial Cell Characterization

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Project description:The developmental potential of human pluripotent stem cells suggests that they can produce disease-relevant cell types for biomedical research. However, substantial variation has been reported among pluripotent cell lines, which could affect their utility and clinical safety. Such cell-line specific differences must be better understood before one can confidently use embryonic stem (ES) or induced pluripotent stem (iPS) cells in translational research. Towards this goal we have established genome-wide reference maps of DNA methylation and gene expression for 20 previously derived human ES lines and 12 human iPS cell lines, and we have measured the in vitro differentiation propensity of these cell lines. This resource enabled us to assess the epigenetic and transcriptional similarity of ES and iPS cells and to predict the differentiation efficiency of individual cell lines. The combination of assays yields a scorecard for quick and comprehensive characterization of pluripotent cell lines. We used microarrays to compare the gene expression profiles between human ES cell lines, iPS cell lines, fibroblasts and embryoid bodies, and to identify cell-line specific outlier genes. 20 human ES cell lines (HUES1, HUES3, HUES6, HUES8, HUES9, HUES13, HUES28, HUES44, HUES45, HUES48, HUES49, HUES53, HUES62, HUES63, HUES64, HUES65, HUES66, H1, H7, H9), 12 human iPS cell lines (hiPS 11a, hiPS 11b, hiPS 11c, hiPS 15b, hiPS 17a, hiPS 17b, hiPS 18a, hiPS 18b, hiPS 18c, hiPS 20b, hiPS 27b, hiPS 27e), 6 fibroblast cell lines (hFib 11, hFib 15, hFib 17, hFib 18, hFib 20, hFib 27), 5 embryoid bodies (hEB16d HUES1, hEB16d HUES3, hEB16d HUES6, hEB16d HUES45, hEB16d H1)

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Expression data from undifferentiated and iPS cells differentiated to a myogenic fate [MYOG]

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