Expression data from iPSCs, iPSC-derived neurons, PBMC-derived Monocytes, PBMC-derived Macrophages, PBMC-derived induced microglia
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ABSTRACT:
PROVIDER: PRJNA508401 | ENA |
REPOSITORIES: ENA
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Project description:iPSCs, iPSC-derived neurons, PBMC-derived Monocytes, PBMC-derived Macrophages, PBMC-derived induced microglia
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Project description:Corneal endothelial cells (CECs) are critical to maintaining clarity of the cornea. This study was initiated to develop peripheral blood mononuclear cells (PBMC)-originated induced pluripotent stem cells (iPSCs)-derived CECs. We isolated PBMC and programmed the mononuclear cells to generate iPSCs. Subsequently, the PBMC-originated iPSCs were differentiated to CECs. The morphology of differentiating iPSCs was examined at regular intervals by phase contrast microscopy. In parallel, the expression of pluripotent, and CECs-associated markers was investigated by quantitative real-time PCR (qRT-PCR). The molecular architecture of the iPSCs-derived CECs and human corneal endothelium (CE) were examined by mass spectrometry-based proteome sequencing. The PBMC-originated iPSCs expressed pluripotent-specific markers at levels similar to expression in H9 human embryonic stem cells (hESCs). Phase contrast microscopy illustrated that iPSCs-derived CECs are tightly adherent, exhibiting a hexagonal-like shape, one of the cardinal characteristics of CECs. The CECs-associated markers were expressed at many orders of magnitude higher in iPSCs-derived CECs at days 13, 20, and 30 compared to their respective levels in iPSCs. Importantly, only residual expression levels of pluripotency markers were detected in iPSCs-derived CECs. Mass spectrometry-based proteome profiling identified 10,575 proteins in iPSCs-derived CECs. In parallel, we completed proteome profiling of the human CE identifying 6345 proteins. Of these, 5763 proteins were identified in the iPSCs-derived CECs suggesting a 90.82% overlap between the iPSCs-derived CECs and human CE proteomes. Importantly, cryopreservation of iPSCs-derived CECs did not affect the tight adherence of CECs, and their hexagonal-like shape while expressing high levels of CECs-associated markers. We have successfully developed a personalized approach to generate CECs that closely mimic the molecular architecture of the human CE. To the best of our knowledge, this is the first report describing the development of PBMC-originated, iPSCs-derived CECs.
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Project description:Differentiation of pluripotent cells to generate lentoid bodies is important for the understanding of the lens development and investigating the processes critical for lens morphogenesis. This Study was initiated to investigate a comprehensive proteome profiling of the peripheral blood mononuclear cell (PBMC)-originated, induced pluripotent stem cell (iPSC)-derived lentoid bodies through mass spectrometry-based protein sequencing. Briefly, a small aliquot of blood sample was ascertained to collect PBMCs that were reprogrammed to iPSCs using the Sendai-virus delivery system. The PBMC-originated, iPSCs were differentiated into lentoid bodies employing the “fried egg” method using feeder-free conditions. The quantitative real-time PCR (qRT-PCR) confirmed the expression of lens-associated markers, which exhibited at least an order magnitude increased expression in lentoid bodies at differentiation day 25. Subsequently, the total cellular protein was extracted from lentoid bodies at day 25, digested with trypsin, fractionated into 24 fractions and subjected to an mass spectrometry-based label-free quantitative proteomics. mass spectrometry-based proteome profiling revealed 9,473 proteins in iPSC-derived lentoid bodies at differentiation day 25. In here, we report a comprehensive proteome of PBMC-originated, iPSC-derived lentoid bodies at day 25, which will help in better understanding processes critical for the development of the ocular lens.
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Project description:Differentiation of pluripotent stem cells into lentoid bodies is important for the understanding of the lens development and investigating the processes critical for lens morphogenesis. This Study was initiated to investigate a comprehensive proteome profiling of the peripheral blood mononuclear cell (PBMC)-originated, induced pluripotent stem cell (iPSC)-derived lentoid bodies through mass spectrometry-based protein sequencing. Briefly, a small aliquot of blood sample was ascertained to collect PBMCs that were reprogrammed to iPSCs using the Sendai-virus delivery system. The PBMC-originated, iPSCs were differentiated into lentoid bodies employing the “fried egg” method using feeder-free conditions. The quantitative real-time PCR (qRT-PCR) confirmed the expression of lens-associated markers, which exhibited at least an order magnitude increased expression in lentoid bodies at differentiation day 35. Subsequently, the total cellular protein was extracted from lentoid bodies at day 35, digested with trypsin, fractionated into 96 fractions and subjected to an mass spectrometry-based label-free quantitative proteomics. mass spectrometry-based proteome profiling revealed 9,717 proteins in iPSC-derived lentoid bodies at differentiation day 35. In here, we report a comprehensive proteome of PBMC-originated, iPSC-derived lentoid bodies at day 35, which will help in better understanding processes critical for the development of the ocular lens.
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Project description:In this dataset, we studied human dopaminergic neuron differenation from induced pluripotent stem cells (iPSCs). We included the gene expression data obtained from iPSCs and iPSC-derived dopaminergic neurons. This dataset is used to predict chromatin accessibility in iPSCs and iPSC-derived neurons using BIRD (Big data Regression for predicting DNase I hypersensitivity).
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Project description:PURPOSE: The goal of this study was to develop a lot release assay for iPSC residuals following directed differentiation of iPSCs to retinal pigment epithelial (RPE) cells. METHODS: RNA Sequencing (RNA Seq) of iPSCs and RPE derived from them was used to identify pluripotency markers downregulated in RPE cells. Quantitative real time PCR (qPCR) was then applied to assess iPSC residuals in iPSC-derived RPE. The limit of detection (LOD) of the assay was determined by performing spike-in assays with known quantities of iPSCs serially diluted into an RPE suspension. RESULTS: ZSCAN10 and Lin28a were among 8 pluripotency markers identified by RNA Seq as downregulated in RPE. Based on copy number and expression of pseudogenes and lncRNAs ZSCAN10 and Lin28a were chosen for use in qPCR assays for residual iPSCs. Reverse transcription PCR indicated generally uniform expression of ZSCAN10 and Lin28a in 21 clones derived from 8 iPSC donors with no expression of either in RPE cells derived from 5 donor lines. Based on qPCR, ZSCAN10 and Lin28a expression in iPSCs was generally uniform. The LOD for ZSCAN10 and Lin28a in qPCR assays was determined using spike in assays of RPE derived from 2 iPSC lines. Analysis of DDCt found the limit of detection to be <0.01% of cells, equivalent to <1 iPSC / 10,000 RPE cells in both iPSC lines. CONCLUSIONS: qPCR for ZSCAN10 and Lin28a detects <1 in 10,000 residual iPSCs in a population of iPSC-derived RPE providing an adequate LOD of iPSC residuals for lot release testing.
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Project description:We show that Retinal pigment epithelium (RPE) secreted-factor, pigment epithelium derived factor (PEDF) secreted/derived from primary or iPSC-derived retinal pigment epithelium (RPE)RPE, dramatically inhibitsed the cell growth of iPSCs. PEDF was detected abundantly in culture supernatant media of primary and iPSC-derived RPE. We examined the gene expression in primary RPE and iPS-derived RPE. Two samples: RPE derived from 253G1 iPSC, Primary RPE.
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