Homo sapiens
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PROVIDER: PRJNA184700 | ENA |
REPOSITORIES: ENA
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Project description:Human induced pluripotent stem (iPS) cells derived from somatic cells of patients hold great promise for modelling human diseases. Dermal fibroblasts are frequently used for reprogramming, but require an invasive skin biopsy and a prolonged period of expansion in cell culture prior to use. Here, we report the derivation of iPS cells from multiple human blood sources including peripheral blood mononuclear cells (PBMCs) harvested by routine venipuncture. Peripheral blood-derived human iPS lines are comparable to human embryonic stem (ES) cells with respect to morphology, expression of surface antigens, activation of endogenous pluripotency genes, DNA methylation and differentiation potential. Analysis of Immunoglobulin and T-cell receptor gene rearrangement revealed that some of the PBMC iPS cells were derived from T-cells, documenting derivation of iPS cells from terminally differentiated cell types. Importantly, peripheral blood cells can be isolated with minimal risk to the donor and can be obtained in sufficient numbers to enable reprogramming without the need for prolonged expansion in culture. Reprogramming from blood cells thus represents a fast, safe and efficient way of generating patient-specific iPS cells.
2010-06-10 | GSE22167 | GEO
Project description:Human induced pluripotent stem (iPS) cells derived from somatic cells of patients hold great promise for modelling human diseases. Dermal fibroblasts are frequently used for reprogramming, but require an invasive skin biopsy and a prolonged period of expansion in cell culture prior to use. Here, we report the derivation of iPS cells from multiple human blood sources including peripheral blood mononuclear cells (PBMCs) harvested by routine venipuncture. Peripheral blood-derived human iPS lines are comparable to human embryonic stem (ES) cells with respect to morphology, expression of surface antigens, activation of endogenous pluripotency genes, DNA methylation and differentiation potential. Analysis of Immunoglobulin and T-cell receptor gene rearrangement revealed that some of the PBMC iPS cells were derived from T-cells, documenting derivation of iPS cells from terminally differentiated cell types. Importantly, peripheral blood cells can be isolated with minimal risk to the donor and can be obtained in sufficient numbers to enable reprogramming without the need for prolonged expansion in culture. Reprogramming from blood cells thus represents a fast, safe and efficient way of generating patient-specific iPS cells. We isolated RNA from multiple human blood sources including peripheral blood mononuclear iPS cells, multiple somatic cells and iPS cells and human embryonic cells and hybridized them to Affymetrix gene expression microarrays.
2010-06-23 | E-GEOD-22167 | biostudies-arrayexpress
Project description:T lymphocytes can be generated from T-cell-derived induced pluripotent stem cells (T-iPS). We used microarrays to better elucidate their phenotype and compare their gene expression profile to that of known lymhoid subsets from peripheral blood.
2013-08-06 | GSE47920 | GEO
Project description:T lymphocytes can be generated from T-cell-derived induced pluripotent stem cells (T-iPS). We used microarrays to better elucidate their phenotype and compare their gene expression profile to that of known lymhoid subsets from peripheral blood. Total mRNA was extracted from T-iPS-derived T cells at day 30-35 of differentiation and from sorted peripheral blood lymphoid subpopulations. Total RNA was amplified and labelled following the standard Affymetrix protocol (Affymetrix, Santa Clara, CA, USA). The labeled complementary RNA was then fragmented and hybridized to Affymetrix GeneChip arrays HG-U133 plus 2.0.
2013-08-06 | E-GEOD-47920 | biostudies-arrayexpress
Project description:The objective of this study was to reprogram peripheral blood-derived late-endothelial progenitor cells (EPCs) to a pluripotent state under feeder-free and defined culture conditions. Late-EPCs were retrovirally-transduced with OCT4, SOX2, KLF4, c-MYC, and iPSC colonies were derived in feeder-free and defined media conditions. EPC-iPSCs expressed pluripotent markers, were capable of differentiating to cells from all three germ-layers, and retained a normal karyotype. Transcriptome analyses demonstrated that EPC-iPSCs exhibit a global gene expression profile similar to human embryonic stem cells (hESCs). We have generated iPSCs from late-EPCs under feeder-free conditions. Thus, peripheral blood-derived late-outgrowth EPCs represent an alternative cell source for generating iPSCs. Six samples were analyzed. The gene expression profile of four iPS clones were compared to the H9 human embryonic stem cell line and the parent endothelial progenitor cell line.
2012-12-16 | E-GEOD-42947 | biostudies-arrayexpress
Project description:Reprogramming of somatic cells provides potential for the generation of specific cell types, which could be a key step in the study and treatment of human diseases. In vitro reprogramming of somatic cells into a pluripotent embryonic stem (ES) cellM-bM-^@M-^Slike state has been reported by retroviral transduction of murine fibroblasts using four embryonic transcription factors or through cell fusion of somatic and pluripotent stem cells. The generation of reprogrammed pluripotent cells using a somatic cell donor source such as bone marrow (BM) or peripheral blood is of particular therapeutic interest because of the relative ease of harvesting these cell types. Here we show that mouse adult BM mononuclear cellsM-oM-<M-^HBM MNCsM-oM-<M-^Iare competent as donor cells and can be reprogrammed into pluripotent ES cell-like cells. We isolated BM MNCs and embryonic fibroblasts (MEFs) from Oct4-EGFP transgenic mice, fused them with ES cells and infected them with retroviruses expressing Oct4, Sox2, Klf4, and c-Myc. Fused BM cells formed more ES-like colonies than did MEFs. Infected BM cells gave rise to iPS cells, although transduction efficiencies were not high. It was more efficient to pick up iPS colonies as compared with MEFs. BM-derived iPS (BM iPS) cells expressed embryonic stem cell markers, formed teratomas, and contributed to chimera mice with germline development. Clonal analysis revealed that BM iPS clones had diversity, although some clones were found to be genetically identical with different phenotypes. Here we demonstrate, for the first time, the induction of pluripotent cells directly from hematopoietic tissue. Gene expression profiling was performed in mouse BMMNCs, ES and BMMNC derived iPS cell lines.
2009-07-02 | E-GEOD-15775 | biostudies-arrayexpress
Project description:The Human Induced Pluripotent Stem Cells Initiative (HipSci) project brings together diverse constituents in genomics, proteomics, cell biology and clinical genetics to create a UK national induced pluripotent stem cell (iPS cell) resource and use it to carry out cellular genetic studies. In this sub-study we performed Expression analysis using the using RNAseq of fibroblasts, peripheral blood mononuclear cells (PBMCs) and induced pluripotent stem cells (iPS cells) generated from the skin biopsies or blood of healthy volunteers. This experiment includes the data and expands the metadata from two obsolete ArrayExpress accessions (E-ERAD-216 and E-ERAD-327) for use in the Expression Atlas. For samples derived from E-ERAD-216 the raw data is stored in the European Genome-Phenome Archive (EGA) and is subject to access control. Data from E-ERAD-327 is stored in the European Nucleotide Archive (ENA) and is publicly available.
2016-06-22 | E-MTAB-4748 | biostudies-arrayexpress
Project description:Disease-specific induced pluripotent stem (iPS) cells have been used for a model to analyze pathogenesis of the disease. We generated iPS cells derived from a fibroblastic cell line of ataxia telangiectasia (AT-iPS cells). In analysis of AT-iPS cells, the human wild-type iPS cell line (MRC5-iPS) was generated and cultured in the same conditions as the diseased iPS cell lines. It is an ideal control cell line for the disease and patient-specific iPS cell lines. Because MRC5-iPS cells exhibited considerable chromosomal abnormalities in vitro, we performed a structural alteration analysis by using a SNP genotyping array for MRC5-iPS cell line, Tic, at passage 15, passage 30, and passage 37.
2013-07-23 | GSE49082 | 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:Background and aim: Human Induced pluripotent stem (iPS) cells have been derived from dermal fibroblasts, keratinocytes and blood cells by ectopic expression of defined transcription factors.1–5 Application of this approach in human cells would have enormous potential and generate patient-specific pluripotent stem cells to accelerate the implementation of stem cells for clinical treatment of degenerative diseases. In the present study, we investigated whether genetically marked human mesenchymal cells of gut mesentery may give rise to iPS cells. Methods: We used lentiviruses to express Oct4, Sox2, Nanog in mesenchymal cells of gut mesentery, then generated iPS cells were identified in many aspects including morphology, pluripotent markers, global gene expression profile, DNA methylation status at pluripotent cell-specific genes, embryoid bodies and terotomas formation. Results: The resulting iPS cells from mesenchymal cells of gut mesentery were similar to human embryonic stem (ES) cells in morphology, proliferation, surface antigens, gene expression, and epigenetic status of pluripotent cell-specific genes. Furthermore, these cells could differentiate into cell types of the three germ layers in vitro and in teratomas. DNA fingerprinting showed that the human iPS cells were derived from the donor cells and are not a result of contamination.
2009-09-26 | GSE18180 | GEO