Similar Datasets
Project description:Differentially expressed genes between osteochondroprogenitor sub-populations
| PRJNA270937 | ENA
Project description:Heterogeneity among hiPSC-MuPCs
| PRJNA820042 | ENA
Project description:Extracellular Vesicles (EV) are an attractive therapy to boost cardiac regeneration. Nevertheless, identification of EV and corresponding cell platform(s) suitable for therapeutic application, is still a challenge. Here, we isolated EV from key stages of the human induced pluripotent stem cell-cardiomyocyte (hiPSC-CM) differentiation and maturation, i.e., from hiPSC (hiPSC-EV), cardiac progenitors (CPC-EV), immature (CMi-EV) and mature (CMm-EV) cardiomyocytes, with the aim of identifying a promising cell biofactory for EV production, and pinpoint the genetic signatures of bioactive EV. EV were characterized in terms of expression of specific markers, yield, and size. Bioactivity was assessed in human umbilical vein endothelial cells (HUVEC) and hiPSC-CM. Small RNA-Seq was performed to identify the differentially expressed miRNA in the four EV groups. Bioactivity assays showed increased tube formation and migration in HUVEC treated with hiPSC-EV compared to EV from committed cell populations. hiPSC-EV also significantly increased hiPSC-CM proliferation. Global miRNA expression profiles corroborated an EV-miRNA pattern indicative of stem cell to cardiomyocyte specification. A stemness maintenance miRNA cluster upregulated in hiPSC-EV was found to target the PTEN/PI3K/AKT pathway. Moreover, hiPSC-EV treatment mediated PTEN suppression and increased AKT phosphorylation. Overall, our findings validate hiPSC as suitable cell biofactories for EV production for cardiac regenerative applications.
2022-06-01 | GSE179323 | GEO
Project description:Genes differentially expressed between NEUROG3-Venus positive and negative hiPSC line differentiated to pancreatic endocrine progenitors [RNA-Seq]
| PRJNA743030 | ENA
Project description:The Purpose of this series of experiments is to identify copy number variations, duplications, and deletions in human induced pluripotent stem (hiPSC) cell lines. Genomic DNA of different human induced pluripotent stem cell lines are extracted and hybridized to NimbleGen CGH microarray, using genomic DNA of hESC H1 or H9 as common reference. Difference between different stem cell lines will be revealed.
2012-01-07 | E-GEOD-33484 | biostudies-arrayexpress
Project description:To identify cell-populations within human iPSC-derived long-term self-renewing neural epithelial stem cells (hiPSC-lt-NES cells) which retain capacities to generate undesired grafts, we established single cell-derived hiPSC-lt-NES cell clones and performed gene expression microarray analysis.
2023-06-04 | GSE166051 | GEO
Project description:To identify cell-populations within human iPSC-derived long-term self-renewing neural epithelial stem cells (hiPSC-lt-NES cells) which retain capacities to generate undesired grafts, we performed gene expression microarray analysis.
2023-06-04 | GSE225719 | GEO
Project description:Transcriptome analysis of RNA extracted from human induced pluripotent stem cell (hipsc)-derived neurons exposed to botulinum neurotoxin type A1 (BoNT/A1) and an atoxic derivative, BoNT/A ad. Botulinum neurotoxin type A1 (BoNT/A1) is a potent protein toxin responsible for the potentially fatal human illness botulism. Despite this, the long-lasting flaccid muscle paralysis caused by BoNT/A has led to its rise as a powerful and versatile bio-pharmaceutical. The flaccid paralysis is due to specific cleavage of SNAREs by BoNTs inside neurons. However, potential effects of BoNTs on intoxicated neurons besides the cleavage of SNAREs have not been studied in detail. In this study we investigated by microarray analysis the effects of BoNT/A and a catalytically inactive derivative (BoNT/A ad) on the transcriptome of human induced pluripotent stem cell (hiPSC)-derived neurons at 2 days and 2 weeks after exposure. While there were only minor changes in expression levels at 2 days post exposure, at 2 weeks post exposure 492 genes were differentially expressed more than 2-fold in BoNT/A1-exposed cells when compared to non-exposed populations, and 682 genes were differentially expressed in BoNT/A ad-exposed cells. The vast majority of genes were similarly regulated in BoNT/A1 and BoNT/A ad-exposed neurons, and the few genes differentially regulated between BoNT/A1 and BoNT/A ad-exposed neurons were regulated less than 3.5 fold. These data indicate a similar response of neurons to BoNT/A1 and BoNT/A ad exposure. The most highly regulated genes in cells exposed to either BoNT/A1 or BoNT/A ad are involved in neurite outgrowth and calcium channel sensitization. 18 samples were used for this project: 6 populations were exposed to BoNT/A1, 6 to BoNT/A ad, and 6 were non-exposed. All exposures lasted for 48h, at which point 3 samples of each exposure group were harvested (2d condition), and the remaining 3 samples were grown for an additional 12d (2wk condition). Analysis was performed using the Affymetrix HG U133 Plus 2.0 array, and data was extracted using the Affymetrix Expression Console v 1.2.0.20 software
2014-09-15 | E-GEOD-58149 | biostudies-arrayexpress
Project description:Purpose: To identify transcriptomic features of hiPSC-derived cells with a good capability to generate retinal organoids Methods: Human induced pluripotent stem cell (hiPSC) samples were collected at two time points for RNA sequencing (day zero and seven, each time point in triplicate). Cell pellets were collected and flash frozen. Total RNA was extracted by a phenol/chloroform method using TRIzol LS reagent (ThermoFisher Scientific, MA) according to the manufacturer's guidelines. tRNA was treated with DNAse I prior to library preparations being performed for RNAsequencing. Results: Human iPSC lines show variation in their ability to differentiate into a neuroectodermal/early eye field phenotype. This study identified a panel of signature transcripts that were differentially expressed at seven days of differentiation, between lines of low- and high-retinal propensity. Conclusions: This study provides a gene profile that identifies which hiPSC-derived cells have a good capability to generate retinal organoids. This allows for the analysis of retinal propensity by quantitative PCR within the first seven days of differentiation.
2023-06-21 | GSE192665 | GEO
Project description:Illumina RNA sequencing to assmeble a transcriptome for the oyster Ostrea lurida and identify genes signficantly differentially expressed among three populations of oysters that differ in their tolerance of low salinity. Our new transcripmotme provides an important genomic resource for future work in this species of conservation concern. Genes differentially expressed between oyster populations provide insight into mechanisms underlying different low salinity tolerances.
2018-04-28 | GSE98355 | GEO