Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA341590 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Identification of the expression pattern of miRNAs of AF-MSCs compared with differentiated AF-MSCs into adipocyte-like cells (AL cells). Significantly, the miRNAs that were found to be more than 2 fold up- or down-regulated on one or more slides were considered as differentially expressed candidates. The miRNA profile revealed 13 differentially expressed miRNAs between AF-MSCs and AL cells. MiR-26a was identified in high expression levels in AL cells indicating a critical role in the process of adipogenesis.
2017-02-01 | GSE86388 | GEO
Project description:Transcriptional profiling of human amniotic fluid-derived mesenchymal stem cells (AF-MSCs) comparing normal condition-cultured AF-MSCs with hypoxia condition-culture AF-MSCs ES cells. The latter improves the proliferation and survival of AF-MSCs, and makes AF-MSCs secret more growth factors. Goal was to determine the effects of hypoxia condition on global AF-MSCs gene expression. Two-condition experiment, Nor AF-MSCs vs. Hypo AF-MSCs. Experimantal replicates: 2 (1-1 vs. 1-2; 2-1 vs. 2-2). Biological replicates: 2 normal replicates, 2 treated replicates.
2013-12-18 | E-GEOD-53402 | biostudies-arrayexpress
Project description:Human amniotic fluid cells (AFCs) are immune-privileged with low immunogenicity and anti-inflammatory properties. Furthermore, they are high proliferative and have a broad differentiation potential, making them amenable for cell replacement therapies. Amniotic fluid (AF) is routinely obtained via amniocentesis. It contains heterogeneous populations of foetal-derived differentiated and undifferentiated progenitor cells including mesenchymal stem cells (MSCs). AF-derived mesenchymal stem cells (AF-MSCs) can self-renew and have a high proliferation and differentiation potential. In this study, we isolated AFCs from AF obtained during Caesarean sections (C-sections) and characterized them. The AFCs showed typical MSCs characteristics in relation to morphology, in vitro differentiation potential, cell surface marker expression and secreted factors. Subpopulations of AF-MSCs expressed several pluripotency-associated markers such as stage specific embryonic antigen 4 (SSEA4), c-Kit, TRA-1-60 and TRA-1-81, making them reprogrammable to induced pluripotent stem cells (iPSCs) without the use of ectopic gene expression. Additionally, they express the mesenchymal marker - Vimentin and multipotency-associated stem cell marker - CD133. Furthermore, the transcriptome and secretome analyses showed significant overlap with bone marrow-derived MSCs. C-section-derived AFMSCs can be routinely obtained without any risk to the foetus. Patient-specific AF-MSCs can be used for personalized cell therapies and disease modelling.
2018-01-12 | GSE100448 | GEO
Project description:Amniotic fluid has been proposed as an easily available source of cells for numerous applications in regenerative medicine and tissue engineering. The use of amniotic fluid cells in biomedical applications necessitates their unequivocal characterization; however, the exact cellular composition of amniotic fluid and the precise tissue origins of these cells remain largely unclear. Using cells cultured from human amniotic fluid of the second trimester from a healthy fetus and fetuses with spina bifida aperta, we have performed single-cell RNA sequencing to characterize the tissue origin and marker expression of cultured amniotic fluid cells at the single-cell level. Our analysis identified nine different cell types of stromal, epithelial and immune cell phenotype, and from various fetal tissue origins, demonstrating the heterogeneity of the cultured amniotic fluid cell population at single-cell resolution. Further, our data question the presence of pluripotent stem cell populations in cultured AF, and provide a comprehensive list of markers for the characterization of its various progenitor and terminally differentiated cell types. Our study highlights the relevance of single-cell analysis approaches for the characterization of amniotic fluid cells in order to harness their full potential in biomedical research and clinical applications.
2023-07-05 | GSE206696 | GEO
Project description:Mesenchymal stromal cells (MSC) are currently being evaluated in numerous preclinical and clinical cell-based therapy studies. Furthermore, there is an increasing interest in exploring alternative uses of these cells in disease modelling, pharmaceutical screening and regenerative medicine by applying reprogramming technologies. However, the limited availability of MSCs from various sources, restricts their use. Term amniotic fluid has been proposed as an alternative source of MSCs. Previously, only low volumes of term fluid and its cellular constituents have been collected, and current knowledge of the MSCs derived from this fluid is limited. In this study, we collected amniotic fluid at term using a novel collection system and evaluated amniotic fluid MSC content and their characteristics, including their feasibility to undergo cellular reprogramming.
2017-08-31 | GSE101602 | GEO
Project description:The raw files of the proteomics dataset are N=18 and a brief description of the files is shown below:
AF1 raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 1
AF2.raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 2
AFA1.raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 3
AFA2.raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 4
AFB1.raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 5
AFB2.raw: exosomes derived from Amniotic Fluid-Mesenchymal Stromal cells 6
HL1A.raw: exosomes derived from Hepatocyte like cells 1
HL1B.raw: exosomes derived from Hepatocyte like cells 2
HL2A.raw: exosomes derived from Hepatocyte like cells 3
HL2B.raw: exosomes derived from Hepatocyte like cells 4
HL3A.raw: exosomes derived from Hepatocyte like cells 5
HL3B.raw: exosomes derived from Hepatocyte like cells 6
HPLA1.raw: exosomes derived from Hepatic Progenitor-like cells 1
HPLA2.raw: exosomes derived from Hepatic Progenitor-like cells 2
HPLB1.raw: exosomes derived from Hepatic Progenitor-like cells 3
HPLB2.raw: exosomes derived from Hepatic Progenitor-like cells 4
HPLA.raw: exosomes derived from Hepatic Progenitor-like cells 5
HPLB.raw: exosomes derived from Hepatic Progenitor-like cells 6
Raw files analysis was performed with Proteome Discoverer 1.4 (Thermo) software package, using the Sequest search engine and the Uniprot human (Homo sapiens) reviewed database, downloaded on December 15, 2017, including 20,243 entries. The search was performed using carbamidomethylation of cysteine as static and oxidation of methionine as dynamic modifications. Two missed cleavage sites, a precursor mass tolerance of 10 ppm and fragment mass tolerance of 0.05 Da were allowed. False discovery rate (FDR) validation was based on q value: target FDR : 0.05. Label free quantification was performed by utilizing the precursor ion area values exported from the total ion chromatogram as defined by the Proteome Discoverer v. 1.4.0.288 (Thermo Scientific). Output files from Proteome Discoverer were processed with R programming language for statistical computing (version 4.0.3).
The following comparisons were made: AF vs HL, AF vs HPL and HL vs HPL.
The msf files are N=18 and have the same name as the raw files above.
| MSV000092848 | MassIVE
Project description:This SuperSeries is composed of the following subset Series: GSE30064: Cultured human amniotic fluid-derived mesenchymal stromal cells [PIQOR data] GSE30065: Cultured human amniotic fluid-derived mesenchymal stromal cells [miRXplore data] Refer to individual Series
2011-06-18 | E-GEOD-30066 | biostudies-arrayexpress
Project description:Myofibroblast activation is a cellular response elicited by a variety of physiological or pathological insults whereby cells initiate a coordinated response intended to eradicate the insult and then revert back to a basal state. However, an underlying theme in various disease states is persistent myofibroblast activation that fails to resolve. Based on multiple observations, we hypothesized that the secreted factors harvested from co-culturing amniotic stem cells might mimic the anti-inflammatory state that cell-free amniotic fluid (AF) elicits. We optimized an amnion epithelial and amniotic fluid cell co-culture system, and tested this hypothesis in the context of myofibroblast activation. However, we discovered that co-cultured amniotic cell conditioned media (coACCM) and AF have opposing effects on myofibroblast activation: coACCM activates the epithelial-mesenchymal transition (EMT) and stimulates gene expression patterns associated with myofibroblast activation, while AF does the opposite. Intriguingly, purified extracellular vesicles (EVs) from AF are necessary and sufficient to activate EMT and inflammatory gene expression patterns, while the EV-depleted AF potently represses these responses. In summary, these data indicate that coACCM stimulates myofibroblast activation, while AF represses it. We interpret these findings to suggest that coACCM, AF, and fractionated AF represent unique biologics that elicit differential cellular responses correlated with a wide variety of pathological states, and therefore could have broad utility in the clinic and the lab.
2022-08-19 | MSV000090160 | MassIVE
Project description:We have discovered that GBS significantly remodels its transcriptome in response to exposure to human amniotic fluid. A large number of the affected genes are of unknown function, which means that much remains to be learned about the full influence of amniotic fluid on GBS. The majority of the observed changes in transcripts affects genes involved in basic bacterial metabolism and is connected to AF composition and nutritional requirements of the bacterium. The observation that many genes encoding adhesions are down-regulated, and genes encoding known virulence factors such as a hemolysin and a potent IL-8 proteinase are up-regulated likely have consequences for the outcome of host-pathogen interactions. Streptococcus agalactiae, serotype III strain NEM316 was grown in human amniotic fluid. Samples of bacteria were collected in mid log, late log and stationary growth phases and were used for RNA isolation for microarray analysis
2010-05-18 | E-GEOD-14456 | biostudies-arrayexpress