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Gene expression data from human induced pluripotent stem cells, induced pluripotent stem cell-derived human neural stem/progenitor cells, and iPSC-derived cerebral cortical neurons

ABSTRACT: Embryonic stem cells are pluripotent and possess the ability to differentiate into numerous lineages during the developmental process. In similarity to embryonic stem cells, human induced pluripotent stem cells (iPSCs) possess the potential to differentiate into multiple lineages making them an excellent research tool. We generated iPSCs from multiple donors and also differentiated iPSCs from these donors into human neural stem/progenitor cells (NSCs). We used human transcriptome arrays to detail the programme of gene expression underlying NPC induction and identified distinct classes of up-regulated genes during this process. Human induced pluripotent stem cells (iPSCs) can be used to create neurons in vitro. This microarray allows researchers to check the expression of their gene of interest in iPSC-derived neurons and compare the gene expression profile of iPSC-derived neurons to other cell types or primary human tissue.

ORGANISM(S): Homo sapiens

PROVIDER: GSE61358 | GEO | 2014/09/12

SECONDARY ACCESSION(S): PRJNA260838

REPOSITORIES: GEO

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Project description:Epigenetic memory in induced pluripotent stem cells (iPSCs), with regards to their somatic cell type of origin, might lead to variations in their differentiation capacities. In this context, iPSCs from human CD34+ hematopoietic stem cells (HSCs) might be more suitable for hematopoietic differentiation than commonly used fibroblast-derived iPSCs. To investigate the influence of an epigenetic memory on the ex vivo expansion of iPSCs into erythroid cells, we compared iPSCs from human neural stem cells (NSCs) and human cord blood-derived CD34+ HSCs and evaluated their potential for differentiation into hematopoietic progenitor and mature red blood cells (RBCs). Although genome-wide DNA methylation profiling at all promoter regions demonstrates an epigenetic memory of iPSCs with regards to their somatic cell type of origin, we found a similar hematopoietic induction potential and erythroid differentiation pattern. All human iPSC lines showed terminal maturation into normoblasts and enucleated RBCs, producing predominantly fetal hemoglobin. Differences were only observed in the growth rate of erythroid cells, which was slightly higher in the CD34+ HSC-derived iPSCs. More detailed methylation analysis of the hematopoietic and erythrocyte promoters identified similar CpG methylation levels in the CD34+ iPSCs and NSC iPSCs, which confirms their comparable erythroid differentiation potential. To investigate the influence of an epigenetic memory on the ex vivo expansion of iPSCs into erythroid cells, we compared iPSCs from human neural stem cells (NSCs) and human cord blood-derived CD34+ HSCs and evaluated their potential for differentiation into hematopoietic progenitor and mature red blood cells (RBCs). RNA samples for microarray analysis were prepared using RNeasy columns (Qiagen, Germany) with on-column DNA digestion. 300ng of total RNA per sample was used as the input in the linear amplification protocol (Ambion), which involved the synthesis of T7-linked double-stranded cDNAs and 12hrs of in vitro transcription incorporating the biotin-labeled nucleotides. Purified and labeled cRNA was then hybridized for 18hrs onto HumanHT-12 v4 expression BeadChips (Illumina, USA) following the manufacturer's instructions. After the recommended washing, the chips were stained with streptavidin-Cy3 (GE Healthcare) and scanned using the iScan reader (Illumina) and the accompanying software. The samples were exclusively hybridized as biological replicates. 8 samples were analyzed: CD34 1, Human CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) population 1, 1 replicate CD34 2, Human CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) population 2, 1 replicate CD34 OSiPS 1, Human Human two factors (POU5F1, SOX2) induced Pluripotent Cell (iPSC) reprogrammed from CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) induced Pluripotent Cell (iPSC) population 1, 1 replicate CD34 OSKMiPS 1, Human Human four factors (POU5F1, SOX2, KLF4, CMYC) induced Pluripotent Cell (iPSC) reprogrammed from CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) induced Pluripotent Cell (iPSC) population 1, 1 replicate CD34 OSiPS 2, Human Human two factors (POU5F1, SOX2) induced Pluripotent Cell (iPSC) reprogrammed from CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) induced Pluripotent Cell (iPSC) population 2, 1 replicate CD34 OSKMiPS 2, Human Human four factors (POU5F1, SOX2, KLF4, CMYC) induced Pluripotent Cell (iPSC) reprogrammed from CD34+ Cord blood CD34+ Hematopoyetic Stem Cell(HSC) induced Pluripotent Cell (iPSC) population 2, 1 replicate H1, Human H1 embryonic stem cell (ESC), 1 replicate H9, Human H9 embryonic stem cell (ESC), 1 replicate

Project description:Induced pluripotent stem cells (iPSCs) hold great promise for in vitro disease modeling and cell replacement therapy for Parkinson’s disease (PD). Both applications crucially require an in-depth profiling of the disease-relevant, iPSC-derived cell type. Midbrain dopaminergic (mDA) neurons derived from pluripotent stem cells are of substantial interest because of their instrumental value for PD therapy. IPSC-derived mDA neuron-like cells have been generated, however, detailed genetic and epigenetic characterization of strictly purified in vitro generated DA neurons has so far lagged behind. We generated mouse Pitx3gfp/+ iPSC-derived DA neurons that, after fluorescent activated cell sorting (FACS) allowed comprehensive comparison to mesodiencephalic dopaminergic (mdDA) neurons from Fac-sorted Pitx3gfp/+ ventral midbrains. We performed detailed analysis of global gene expression and genome-scale DNA methylation of CpG islands (CGIs) by reduced representation bisulfite sequencing. The reprogramming pathway from fibroblasts to iPSCs left parental cell footprints for both gene expression and DNA methylation. However, most gene expression patterns of iPSC-derived DA neurons closely resembled that of primary mdDA neurons with the strongest correlations for mdDA specific genes. Also, for DNA methylation patterns, high similarities were found for the vast majority of CGIs when comparing primary mdDA neurons with iPSC-derived DA neurons. Additionally, we found de novo DNA methylation during in vitro differentiation for hundreds of genes specifically in lineage-committed neural precursors that persisted in iPSC-derived DA neurons. Our study provides novel detailed characteristics of iPSC-derived DA neurons in comparison to the primary cell type. These findings add important information to our knowledge about these biomedically highly valuable, in vitro generated neurons. Microarray expression study comparing 3 samples of facs-sorted, Pitx3-gfp positive cells from each experimental group to a common reference consisting of adult mouse midbrain RNA. Each sample was analysed in normal and opposite dye orientation.

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Gene expression data from human induced pluripotent stem cells, induced pluripotent stem cell-derived human neural stem/progenitor cells, and iPSC-derived cerebral cortical neurons

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