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ScRNA seq of the hESC line H9 differentiated to retinal pigment epithelium at two different time points

ABSTRACT: scRNA seq of the hESC line H9 differentiated to retinal pigment epithelium at two different time points

PROVIDER: PRJEB35403 | ENA |

REPOSITORIES: ENA

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scRNA seq of the hESC line H9 differentiated to retinal pigment epithelium at two different time points

Project description:We differentiated the human embryonic stem cell line H9 into retinal pigment epithelium (RPE) cells, to assess their transcriptomic profiles over time in culture. In-depth molecular analysis was performed by single cell RNA-Sequencing to access the molecular signature of RPE cells grown and harvested at two time points in culture (30 days and 369 days post passaging). We performed high-resolution comparisons at subpopulation and single-cell levels, to assess gene expression pathway signatures in RPE cells and upon aging in vitro. The hESC line H9 was grown to 70-80% confluence, transitioned to E6 medium for 2 days, with supplementation of N2 from day 2 until day 33. On day 33, medium was switched to RPEM (alpha-MEM, N1 supplement, 5% FBS, NEAA, Pen Strep Glutamine, taurine-hydrocortisone-triiodo-thyronin (THT)) for an additional 32 days. Cells were enzymatically passaged using 0.25% Trypsin EDTA and plated at 75,000 cells/cm2 on Matrigel growth factor reduced pre-coated plates (P1). Cells were subsequently harvested at day 30 (sample \\"YOUNG\\") and day 369 (sample \\"AGED\\"). Both samples were sorted for live cells using PI on a BD FACS Aria. Cells were centrifuged at 300g for 5 min and resuspended in PBS containing 0.04% BSA to a concentration of ~800-1000 cells/ µl. Approximately 17,400 cells were loaded onto a 10X chip single Cell 3′ Chips along with the reverse transcription master mix as per the manufacturer's protocol for the Chromium Single Cell 3′ v2 Library for a target recovery of 10,000 cells. Samples were then processed for sc Seq.

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Project description:transcriptional profiling of H9 human embronic stem cells (hESC) and hESC derived retinal pigment epithelium (RPE)

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transcriptional profiling of H9 human embronic stem cells (hESC) and hESC derived retinal pigment epithelium (RPE)

Project description:RPE was derived from hESC based on the protocol described in Zhu et al. PlosOne. 2013.

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Homo sapiens strain:H9 hESC line

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Project description:In this study, we generated wildtype H9 hESC derived cardiomyocytes (CM) and neural stem cells (NSC) by in vitro differentiation. Global gene expression profiles were compared among undifferentiated H9 hESC and the derived CM and NSC. Comparison of global gene expression profiles of undifferentiated H9 hESC and the derived CM and NSC populations.

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Comparison of stem-cell derived retinal pigment epithelia (RPE) with human fetal retina pigment epithelium

Project description:Retinal Pigment Epithelium (RPE) derived from two human embryonic stem cell lines, H1 and H9, were compared with human fetal RPE (hfRPE) using RNA-seq. Nominally, the transcriptome of H1-derived RPE showed greater overlap with hfRPE. For cells maintained in the medium used to differentiate RPE, 6.2% (H1-RPE) and 4.2% (H9-RPE) of the transcripts were expressed in amounts that were statistically different from hfRPE (false discovery rate: 5%). After adaptation to the serum-free medium, SFM-1, only 1.0 % (H1-RPE) and 1.9% (H9-RPE) were expressed in amounts that were statistically different. For RPE signature genes, statistical differences were observed for 1.0 % (H1-RPE) and 1.9% (H9-RPE) of the transcripts. For some barrier-function related mRNAs the statistical differences were greater than these small differences would predict. For adhesion proteins and plasma membrane transporters, the differences were as great as 6.9% and 4.3%, respectively. After adaptation to SFM-1, the statistical differences between H1- and H9-RPE were only 0.4% for all transcripts, 1.4% for signature genes, and 0.7% for membrane transporters. No statistical differences were observed for the transcripts related to tight junctions, adhesion junctions or ion channels. In summary, SFM-1 promoted the maturation of stem cell-derived RPE, and the statistical difference between two stem cell lines was minimal. RNA sequencing of hfRPE from three fetuses (reference sample) and three independent isolates of RPE derived from the H1, and three from the H9, human embryonic stem cell (hESC) lines. The cultures were maintained in a serum-free medium, SFM-1. Comparisons were also made to cultures maintained in the medium used to differentiate the cells, KSR.

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