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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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The NIH Human Pluripotent Stem Cell Database (Affymetrix, mRNA)

ABSTRACT: To broaden the appeal of the NIH Stem Cell Database, we analyzed a subset of undifferentiated human embryonic stem cell lines (5 lines in duplicate) on the Affymetrix platform. One standard culture protocol was used in conjunction with rigorous quality control. Expanded description of methods used and are available at: http://stemcelldb.nih.gov. 12 samples: 10 human ESC (UNDIFFiferentiated) and 2 processing controls (UniRef).

ORGANISM(S): Homo sapiens

SUBMITTER: Kory Johnson

PROVIDER: E-GEOD-33789 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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StemCellDB: the human pluripotent stem cell database at the National Institutes of Health.

Mallon Barbara S BS Chenoweth Josh G JG Johnson Kory R KR Hamilton Rebecca S RS Tesar Paul J PJ Yavatkar Amarendra S AS Tyson Leonard J LJ Park Kyeyoon K Chen Kevin G KG Fann Yang C YC McKay Ronald D G RD

Stem cell research 20120926 1

Much of the excitement generated by induced pluripotent stem cell technology is concerned with the possibility of disease modeling as well as the potential for personalized cell therapy. However, to pursue this it is important to understand the 'normal' pluripotent state including its inherent variability. We have performed various molecular profiling assays for 21 hESC lines and 8 hiPSC lines to generate a comprehensive snapshot of the undifferentiated state of pluripotent stem cells. Analysis ...[more]

PMID: 23117585

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The NIH Human Pluripotent Stem Cell Database

Project description:This SuperSeries is composed of the following subset Series: GSE32923: The NIH Human Pluripotent Stem Cell Database (Agilent, mRNA) GSE33789: The NIH Human Pluripotent Stem Cell Database (Affymetrix, mRNA) GSE34199: The NIH Human Pluripotent Stem Cell Database (Agilent, miRNA) GSE34869: The NIH Human Pluripotent Stem Cell Database (Illumina, methylation) GSE35157: The NIH Human Pluripotent Stem Cell Database (Illumina, snp) GSE35735: The NIH Human Pluripotent Stem Cell Database (Agilent, cgh) Refer to individual Series

2012-10-31 | E-GEOD-34200 | biostudies-arrayexpress

The NIH Human Pluripotent Stem Cell Database (Agilent, mRNA)

Project description:To better understand the extent to which induced pluripotent stem cells (iPSCs) faithfully recapitulate the characteristics of embryonic stem cells (ESCs) under (undiff)erentiated condition, KSR condition and FBS condition and how both compare to somatic tissues under these conditions, we employed whole-genome transcriptome analysis on all twenty one hESC lines available on the pre-2008 NIH Human Pluripotent Stem Cell Registry, eight human iPSCs derived at NIH by retroviral transduction of human fibroblasts and twenty human somatic tissues. One standard culture protocol was used in conjunction with rigorous quality control. Expanded description of methods used and are available at: http://stemcelldb.nih.gov. 230 samples: 44 human ESC (UNDIFF), 16 human iPSC (UNDIFF) 44 human ESC (KSR), 15 human iPSC (KSR), 44 human ESC (FBS), 15 human iPSC (FBS), 1 human Brain, 1 human Placenta, 1 human Skeletal Muscle, 1 human Heart, 1 human Liver, 1 human Lung, 1 human Kidney, 1 human Esophagus, 1 human Ovary, 1 human Testes, 1 human Spleen, 1 human Adipose, 1 human Thyroid, 1 human Thymus, 1 human Small Intestine, 1 human Prostate, 1 human Cervix, 1 human Colon, 1 human Bladder, 1 human Trachea) and 32 processing controls (UniRef).

2012-10-31 | E-GEOD-32923 | biostudies-arrayexpress

Comparison of the molecular profiles of human embryonic and isogenic induced pluripotent stem cells. [Illumina]

Project description:Many studies have compared the genetic and epigenetic profiles of human induced pluripotent stem cells (hiPSCs) to human embryonic stem cells (hESCs) and yet the picture remains unclear. To address this, we derived a population of neural precursor cells (NPCs) from the H1 (WA01) hESC line and generated isogenic iPSC lines by reprogramming. The gene expression and methylation profile of three lines were compared to the parental line and intermediate NPC population. We found no gene probe with expression that differed significantly between hESC and iPSC samples under undifferentiated or differentiated conditions. Analysis of the global methylation pattern also showed no significant difference between the two PSC populations. Both undifferentiated populations were distinctly different from the intermediate NPC population in both gene expression and methylation profiles. One point to note is that H1 is a male line and so extrapolation to female lines should be cautioned. However, these data confirm our previous findings that there are no significant differences between hESCs and hiPSCs at the gene expression or methylation level. 12 samples: 1 human NPC, 5 human ESC (UNDIFF), 6 human iPSC (UNDIFF)

2014-01-01 | E-GEOD-51747 | biostudies-arrayexpress

The NIH Human Pluripotent Stem Cell Database (Agilent, miRNA)

Project description:MicroRNA profiling was performed on RNA samples matched to those included in the NIH Human Pluripotent Stem Cell Database (Series GSE32923). Twenty undifferentiated human embryonic stem cell lines and 4 human tissues were analyzed. Expanded descriptions of methods used are available at: http://stemcelldb.nih.gov. 49 samples: 38 human ESC (UNDIFFerentiated), 1 human Brain, 1 human Heart, 1 human Liver, 1 human Ovary and 7 processing controls (UniRef).

2012-10-31 | E-GEOD-34199 | biostudies-arrayexpress

Induction of IL-17+ T-cells by HIV-Tat protein is mediated via Vascular Endothelial Growth Factor Receptor-2

Project description:Anti-retroviral therapy (ART) has transformed human immunodeficiency virus (HIV) infection from a fatal illness to a chronic condition by controlling viral replication and restoring immune function. However, chronic T-cell activation can be observed in 20-35% of individuals on ART, resulting in an immune reconstitution inflammatory syndrome (IRIS) [1-3]. IRIS involving the CNS can result in permanent disability and death [4]. Tat is a viral protein produced in HIV-infected cells and released into the extracellular space [5]. We show that the secreted-Tat protein activated uninfected T-cells in an antigen-independent manner without inducing proliferation. Notably, Tat induced the secretion of IL-17 from T-cells and increased the percentage of T-cells with a Th17 phenotype. T-cell activation was independent of the T-cell receptor but dependent on endocytosis of Tat and activation of vascular endothelial growth factor receptor 2 (VEGFR2). Tat induced global changes in histone acetylation and increased HIV infection in non-replicating T-cells. Furthermore, in an individual with CNS IRIS, Tat expressing infiltrates and secretion of IL-17 was detected in the absence of viral replication in the brain. Thus Tat can induce T-cell activation in a paracrine and autocrine manner resulting in propagation of inflammation and increased virulence. 12 Human samples in 6 pairs: 6 Human T cell HIV tat exposed 0hrs, 6 Human T cell HIV tat exposed 24hrs

2013-08-02 | E-GEOD-44460 | biostudies-arrayexpress

Maternal immune activation by LPS selectively alters specific gene expression profiles of interneuron migration and oxidative stress in the fetus without triggering a fetal immune response.

Project description:Maternal immune activation is a risk factor for the development of schizophrenia and autism. Infections during pregnancy activate the mother's immune system and alter the fetal environment with sub-sequence effects of CNS function and behavior in the offspring, but the cellular and molecular links between infection-induced altered fetal development and risk for neuropsychiatric disorders are unknown. We investigated the immunological, molecular, and behavioral effects of MIA in the offspring of pregnant Sprague-Dawley rats given an intraperitoneal (0.25 mg/kg) injection of lipopolysaccharide (LPS) on embryonic day 15. LPS significantly elevated pro-inflammatory cytokines in maternal serum, amniotic fluid, and fetal brain at 4 h, and levels decreased but remained elevated at 24 h. Offspring born to LPS-dams exhibited reduced social and exploration behaviors as juveniles and young adults. Whole genome microarray analysis of the fetal brain at 4 h post maternal LPS was performed to elucidate possible molecular mechanisms by which MIA effects the fetal brain. We observed dysregulation of 3,285 genes in restricted functional categories, with increased mRNA expression of cellular stress and cell death genes and reduced expression of developmentally-regulated and brain-specific genes, specifically those that regulate neuronal migration of GABAergic interneurons. 19 Fetal Rat Brain Samples: 10 (-) LPS, 9 (+) LPS.

2012-07-25 | E-GEOD-34058 | biostudies-arrayexpress

Retinoid X Receptor activation reverses the age-related deficiency in myelin debris phagocytosis and enhances remyelination

Project description:The efficiency of central nervous system (CNS) remyelination declines with age. This is in part due to an age-associated decline in the phagocytic removal of myelin debris, which contains inhibitors of oligodendrocyte progenitor cell differentiation. In this study we show that expression of genes involved in the retinoid X receptor (RXR) pathway are decreased with aging in myelin-phagocytosing cells. Loss of RXR function in young macrophages mimics aging by delaying remyelination after experimentally-induced demyelination, while RXR agonists partially restore myelin debris phagocytosis in aged macrophages. The FDA-approved RXR agonist bexarotene, when used in concentrations achievable in human subjects, caused a reversion of the gene expression profile in aging human monocytes to a more youthful profile. These results reveal the RXR pathway as a positive regulator of myelin debris clearance and a key player in the age-related decline in remyelination that may be targeted by available or newly-developed therapeutics. 24 Human CD14+ monocyte-sorted PBMC samples representing 4 Healthy Volunteers (HV) and 4 Multiple Sclerosis (MS) patients under 3 different treatment conditions. Condition 1 = (-) Phagocystosis (-) Bexarotene. Condition 2 = (+) Phagocystosis (-) Bexarotene. Condition 3 = (+) Phagocystosis (+) Bexarotene.

2015-11-04 | E-GEOD-66988 | biostudies-arrayexpress

Therapeutic antiviral T cells noncytopathically clear persistently infected microglia after conversion into antigen-presenting cells

Project description:Several viruses can infect the mammalian nervous system and induce neurological dysfunction. Adoptive immunotherapy (AI) is an approach that involves administration of antiviral T cells and has shown promise in clinical studies for the treatment of peripheral virus infections in humans such as cytomegalovirus, Epstein-Barr virus, and adenovirus, among others. Clearance of neurotropic infections, on the other hand, is particularly challenging because the central nervous system (CNS) is relatively intolerant of immunopathological reactions. Therefore, it is essential to develop and mechanistically understand therapies that noncytopathically eradicate pathogens from the CNS. Here, we used mice persistently infected from birth with lymphocytic choriomeningitis virus (LCMV) to demonstrate that therapeutic antiviral T cells can completely purge the persistently infected brain without causing blood brain barrier breakdown or tissue damage. Mechanistically, this is accomplished through a tailored release of chemoattractants that recruit antiviral T cells, but few pathogenic innate immune cells such as neutrophils and inflammatory monocytes. Upon arrival, T cells enlisted the support of nearly all brain resident myeloid cells (microglia) by converting them into CD11c+ antigen-presenting cells (APCs) – a cell population also found in the brain of a human immunodeficiency virus infected patient. Two-photon imaging studies revealed that antiviral CD8+ and CD4+ T cells interacted directly with CD11c+ microglia and induced STAT1 signaling, but did not initiate programmed cell death. We propose that noncytopathic CNS viral clearance can be achieved by therapeutic antiviral T cells reliant on restricted chemoattractant production and interactions with apoptosis-resistant microglia. 6 Mouse Microglia-sorted Brain Samples: 3 (-) AI, 3 (+) AI.

2015-06-22 | E-GEOD-66421 | biostudies-arrayexpress

Comparison of the molecular profiles of human embryonic and isogenic induced pluripotent stem cells. [Agilent]

Project description:Many studies have compared the genetic and epigenetic profiles of human induced pluripotent stem cells (hiPSCs) to human embryonic stem cells (hESCs) and yet the picture remains unclear. To address this, we derived a population of neural precursor cells (NPCs) from the H1 (WA01) hESC line and generated isogenic iPSC lines by reprogramming. The gene expression and methylation profile of three lines were compared to the parental line and intermediate NPC population. We found no gene probe with expression that differed significantly between hESC and iPSC samples under undifferentiated or differentiated conditions. Analysis of the global methylation pattern also showed no significant difference between the two PSC populations. Both undifferentiated populations were distinctly different from the intermediate NPC population in both gene expression and methylation profiles. One point to note is that H1 is a male line and so extrapolation to female lines should be cautioned. However, these data confirm our previous findings that there are no significant differences between hESCs and hiPSCs at the gene expression or methylation level. 22 samples: 1 human NPC, 2 human ESC (UNDIFF), 5 human iPSC (UNDIFF), 2 human ESC (EB_ecto), 5 human iPSC (EB_ecto), 2 human ESC (EB_mesend), 5 human iPSC (EB_mesend)

2014-01-01 | E-GEOD-51561 | biostudies-arrayexpress

Comparison of the molecular profiles of human embryonic and isogenic induced pluripotent stem cells.

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-01-01 | E-GEOD-51748 | biostudies-arrayexpress