Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Undifferentiated mouse embryonic stem cells, differentiated nestin-positive cells and fibroblast feeder layer.

ABSTRACT: Embryonic stem (ES) cells and ES cell-derived progeny characterized by nestin expression (including neural progenitors) were studied (three independent experiments). The mouse ES cell line R1 was cultured on a feeder layer of mouse embryonic fibroblasts (FL). ES cells were differentiated into nestin-positive cells for 4+8 days and 4+11 days according to the differentiation protocol by Rolletschek et al. (Mechanisms of Development 105, 93-104, 2001). The study was performed with three independent cell cultures (= triplicates). RNA was prepared from both undifferentiated ES cells and ES cell-derived nestin-positive cells, and from fibroblast feeder cells. Keywords = ES cell Keywords = nestin positive cells Keywords = feeder layer Keywords: other

ORGANISM(S): Mus musculus

PROVIDER: GSE2375 | GEO | 2005/09/17

SECONDARY ACCESSION(S): PRJNA91531

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Transcription profiling of mouse undifferentiated embryonic stem cells, differentiated nestin-positive cells and fibroblast feeder layer.

Project description:Embryonic stem (ES) cells and ES cell-derived progeny characterized by nestin expression (including neural progenitors) were studied (three independent experiments). The mouse ES cell line R1 was cultured on a feeder layer of mouse embryonic fibroblasts (FL). ES cells were differentiated into nestin-positive cells for 4+8 days and 4+11 days according to the differentiation protocol by Rolletschek et al. (Mechanisms of Development 105, 93-104, 2001). The study was performed with three independent cell cultures (= triplicates). RNA was prepared from both undifferentiated ES cells and ES cell-derived nestin-positive cells, and from fibroblast feeder cells.

2008-06-12 | E-GEOD-2375 | biostudies-arrayexpress

Mus musculus

Project description:Undifferentiated mouse embryonic stem cells, differentiated nestin-positive cells and fibroblast feeder layer.

| PRJNA91531 | ENA

Gene Expression Analysis of Neural Stem Cells

Project description:Tissue from the telencephalon was isolated from E13.5 BALB/C mouse and allowed to culture as neurospheres in the presence of FGF2. These cultures were assessed for undifferentiated neural stem cells by the expression of Nestin and were found to be ~98% Nestin positive. Comparisons of these nestin positive neural stem cells will be made to R1 ES cells to identify the genes that are important in totipotent, self-renewing ES cells vs. commitment to the multipotent, self-renewing neural stem cell phenotype. Keywords: other

2005-12-09 | GSE3768 | GEO

Maintenance of undifferentiated mouse ES cells in suspension by the serum and feeder-free defined culture condition

Project description:Mouse embryonic stem (ES) cells are indispensable for gene targeting approaches to study gene functions and regulations, the production of animal models for human diseases, and in vitro cell differentiation studies. The proven pluripotency of ES cells is expected to allow their therapeutic use for regenerative medicine. We present here a novel suspension culture method that facilitates the proliferation of pluripotent ES cells without feeder cells. The culture medium is free of either animal-derived or synthetic serum, and contains very low amounts of peptidic or proteinaceous materials, which are favorable for therapeutic use. ES cells showed sustained proliferation in the suspension culture, and their undifferentiated state and pluripotency were experimentally verified. DNA microarray analyses showed a close relationship between the elevated expression of genes related to cell adhesions and activation of the WNT signaling pathway. We suggest that this suspension culture condition provides a better alternative to the conventional attached cell culture condition, especially for possible therapeutic use, by limiting the exposure of ES cells to feeder cells and animal products. Keywords: reference design,replicate design

2008-09-02 | GSE9022 | GEO

Comparison between Nestin+ and Nestin- Ptch1 deficient GNPs

Project description:The intermediate filament protein Nestin serves as a biomarker for stem cells and has been used to identify subsets of cancer stem-like cells. However, the mechanistic contributions of Nestin to cancer pathogenesis are not understood. Here we report that Nestin binds the hedgehog pathway transcription factor Gli3 to mediate the development of medulloblastomas of the hedgehog subtype. In a mouse model system, Nestin levels increased progressively during medulloblastoma formation resulting in enhanced tumor growth. Conversely, loss of Nestin dramatically inhibited proliferation and promoted differentiation. Mechanistic investigations revealed that the tumor-promoting effects of Nestin were mediated by binding to Gli3, a zinc finger transcription factor that negatively regulates hedgehog signaling. Nestin binding to Gli3 blocked Gli3 phosphorylation and its subsequent proteolytic processing, thereby abrogating its ability to negatively regulate the hedgehog pathway. Our findings show how Nestin drives hedgehog pathway-driven cancers and uncover in Gli3 a therapeutic target to treat these malignancies. Nestin+ and Nestin- GNPs (granule neuron precursors) were purified from Nestin-CFP/Math1-Cre/Ptch1-loxp cerebella at postnatal day 4 by FACs, and total RNA from these two cell populations were extracted, and then labeled and hybridized to Affymetrix Mouse Genome 430 2.0 arrays.

2016-08-09 | E-GEOD-84392 | biostudies-arrayexpress

Nestin positive cells vs human islets

Project description:A monolayer of human nestin positive cells grown in culture using bFGF and EGF was compared to hand picked isolated islets.

2014-10-31 | E-MTAB-3049 | biostudies-arrayexpress

Comparison between Nestin+ and Nestin- Ptch1 deficient GNPs

2016-08-09 | GSE84392 | GEO

Gene expression of human corneal epithelial cells grown with irradiated human fibroblasts or irradiated mouse 3T3 feeder layer .

Project description:human corneal epithelial cells were isolated from healthy human donor eyes. Cells were cultured with irradiated 3T3 (i3T3) murine fibroblast feeder cells, irradiated human corneal fibroblasts (iHFL) or without feeder layer

2019-12-12 | GSE141841 | GEO

Methanol fixed feeder layers altered the pluripotency and metabolism of bovine pluripotent stem cells

Project description:The pluripotency maintenance of pluripotent stem cells (PSCs) cultured in vitro requires the suitable microenvironment, which is commonly provided by the feeder layer. However, the preparation of feeder layer is time consuming and labor exhaustive. More importantly, the feeder cells treated with mitomycin or gamma-ray irradiation brings heterologous contamination to stem cells. The feeder-free PSC cultures are associated with high costs because of the requirement for additional supplements and special media. In this study, we characterize the pluripotency and metabolic status of bovine ESCs-F7 (classic bESCs lines, abbreviated as F7), which were cultured on methanol fixed mouse embryonic fibroblasts (MT-MEFs) or mitomycin C treated MEFs (1M-MEFs). MT-MEFs could be reused several times and were highly resistant to digestive enzymes. The relative expression levels of pluripotent markers were different between F7 cultured on MT-MEFs (marked as MT-F7) and those cultured on the 1M-MEFs (1M-F7). The long-term cultured MT-F7 cells formed embryoid bodies in vitro, showing the ability to differentiate into endodermal, ectodermal, and mesodermal germ layers like 1M-F7. RNA-sequencing analysis showed that the replacement of the feeder layer from 1M-MEFs to MT-MEFs lead to a novel steady transition of the F7, which included alteration of the expression patterns of genes that regulate pluripotency and metabolism. Further, the long-term cultured bovine expanded pluripotent stem cells (bEPSCs) on MT-MEFs (MT-bEPSCs) formed classical colonies, maintained pluripotency, and demonstrated elevated level of metabolic activity. In conclusion, this study demonstrated that methanol-fixed MEFs were efficient feeder layer that maintain the unique pluripotency and the distinctive metabolic characteristics of the bPSCs cultured in vitro.

2022-05-01 | GSE199731 | GEO

Quantitative proteomics links the intermediate filament nestin to vemurafenib resistance in melanoma cell lines

Project description:Targeted inhibition of mutated kinases using selective MAP kinase inhibitors in malignant melanoma often results in temporary improvement of the metastatic disease followed by rapid development of resistance. To gain insights in molecular processes that govern resistance, we performed SILAC-based quantitative proteomics profiling of vemurafenib-resistant and -sensitive melanoma cells. Among downregulated proteins in vemurafenib-resistant cell lines we detected multiple proteins involved in cytoskeletal organization and signaling, including the intermediate filament nestin, which was one of the most down-regulated proteins. Previous studies showed that nestin is expressed in various types of solid tumors and its abundance correlates with malignant phenotype of transformed cells. However, the role of nestin in cancer cells with regard to acquired resistance is still poorly understood. We performed CRISPR/Cas9 knockout of the nestin gene (NES) in vemurafenib-sensitive cells and showed that loss of nestin leads to increased cellular proliferation and colony formation upon treatment with BRAF and MEK inhibitors. Moreover, nestin depletion led to increased invasiveness and metalloproteinase activity similar to resistant phenotype of melanoma cells. Finally, phosphoproteome analysis revealed that nestin depletion influenced signaling through integrin and PI3K-Akt-mTOR pathways and led to increased focal adhesion kinase expression and phosphorylation. Taken together, our results reveal that nestin is associated with acquired vemurafenib resistance in melanoma cell lines.

2019-05-14 | PXD010683 | Pride

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data