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Global gene expression pattern difference between the high density and the regular density cultured rat bone marrow cells

ABSTRACT: In vitro expansion of endothelial progenitor cells (EPCs) remains a challenge in stem cell research and its application. We hypothesize that high density culture is able to expansion EPCs from bone marrow by mimicking cell-cell interactions of the bone marrow niche. To test the hypothesis, rat bone marrow cells were either cultured in high density by seeding or cultured in regular density. Flow cytometric analyses of the cells cultured for 15 days showed that high density cells exhibited smaller cell size and higher levels of marker expression related to EPCs when compared to regular density cultured cells. Global gene expression pattern difference between the high density and the regular density cultured cells was analyzed by a microarray assay.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE49510 | GEO | 2013/08/03

SECONDARY ACCESSION(S): PRJNA214078

REPOSITORIES: GEO

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Global gene expression pattern difference between the high density and the regular density cultured rat bone marrow cells

Project description:In vitro expansion of endothelial progenitor cells (EPCs) remains a challenge in stem cell research and its application. We hypothesize that high density culture is able to expansion EPCs from bone marrow by mimicking cell-cell interactions of the bone marrow niche. To test the hypothesis, rat bone marrow cells were either cultured in high density by seeding or cultured in regular density. Flow cytometric analyses of the cells cultured for 15 days showed that high density cells exhibited smaller cell size and higher levels of marker expression related to EPCs when compared to regular density cultured cells. Global gene expression pattern difference between the high density and the regular density cultured cells was analyzed by a microarray assay. Gene expression in rat bone marrow cells was measured at 15 days after high density culture or regular density cluture. 2 independent experiments were performed using different high density(HD) cultured cells for each experiment and bone marrow cells in regular density(RD) were used as a control.

2013-08-03 | E-GEOD-49510 | biostudies-arrayexpress

Rattus norvegicus

Project description:Global gene expression pattern difference between the high density and the regular density cultured rat bone marrow cells

| PRJNA214078 | ENA

Mouse Endothelial Progenitor Cell (EPC) Lines - Illumnia Array

Project description:Mouse EPCs were harvested from lung tissue and cultured in hypoxic chambers (2% FiO2) for 48 hrs and then transferred to regular incubators. Cell lines were then stained for the uptake of the acetylated form of low density lipoprotein. These cells were then sorted by flow cytometry and labeled as EPC_acLDL cells. Finally, high passage EPC_acLDL cells (p16-20) were collected and labeled as EPC_late cells. The three cell lines were then grown up, harvested, and RNA isolated and submitted in duplicate for Illumina array analysis of gene expression.

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Mouse Endothelial Progenitor Cell (EPC) Lines - Illumnia Array

2013-12-30 | E-GEOD-53681 | biostudies-arrayexpress

Genome-wide chromatin accessibility changes in cultured primary human monocytes cultured at low density and high density.

Project description:ATAC sequencing of primary human monocytes cultured at low and high density. Monocytes isolated from PBMCs of 3 healthy donors were cultured at low density (1 x 10^6 cells/mL) or at high density (1 x10^7 cells/mL) for 24hrs and harvested for ATAC sequencing. Protein expression of FcgR2b is higher on monocytes in high density conditions compared to low density conditions, where expression is negligble. This study provides information on genome-wide chromatin accessibility changes that occur in high density culture in order to study associations with FcgR2b expression.

2022-04-13 | GSE166100 | GEO

Transcriptomic analysis of endothelial progenitor cells (EPCs) isolated from mice exposed to concentrated air pollution particles (CAPS) [miRNA-seq]

Project description:Mice were exposed to filtered air or CAPs for 30 days and then bone marrow-derived EPCs isolated and cultured for 12 days. RNAs isolated from these mice were used for RNA seq analysis.

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Transcriptomic analysis of endothelial progenitor cells (EPCs) isolated from mice exposed to concentrated air pollution particles (CAPS) [mRNA-seq]

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Expression data from human healthy CD133+ bone marrow EPCs

Project description:Systemic lupus erythematosus (SLE) is characterized by increased vascular risk due to premature atherosclerosis independent of traditional risk factors. We previously proposed that interferon-α plays a crucial role in premature vascular damage in SLE. IFN-α alters the balance between endothelial cell apoptosis and vascular repair mediated by endothelial progenitor cells (EPCs) and myeloid circulating angiogenic cells (CACs). Here we demonstrate that IFN-α promotes an antiangiogenic signature in SLE and control EPCs/CACs, characterized by transcriptional repression of IL-1α and β, IL-1 receptor 1 and vascular endothelial growth factor A (VEGF-A) and upregulation of IL-1 receptor antagonist (IL-1RN) and the decoy receptor IL1-R2. IL-1β promotes significant improvement in the functional capacity of lupus EPCs/CACs, therefore abrogating the deleterious effects of IFN-α. We used microarrays to analyze the effect of IFNα on peripheral blood EPCs/CACs and on bone marrow EPCs exposed to proangiogenic stimulation. Human healthy EPCs from bone marrow were isolated and cultured under proangiogenic stimulation; after IFNa incubation or not, RNA was extracted and processed for hybridization on Affymetrix microarrays.

2011-04-13 | E-GEOD-26951 | biostudies-arrayexpress

Expression data from human healthy and lupus EPCs/CACs, and healthy CD133+ bone marrow EPCs

Project description:Systemic lupus erythematosus (SLE) is characterized by increased vascular risk due to premature atherosclerosis independent of traditional risk factors. We previously proposed that interferon-α plays a crucial role in premature vascular damage in SLE. IFN-α alters the balance between endothelial cell apoptosis and vascular repair mediated by endothelial progenitor cells (EPCs) and myeloid circulating angiogenic cells (CACs). Here we demonstrate that IFN-α promotes an antiangiogenic signature in SLE and control EPCs/CACs, characterized by transcriptional repression of IL-1α and β, IL-1 receptor 1 and vascular endothelial growth factor A (VEGF-A) and upregulation of IL-1 receptor antagonist (IL-1RN) and the decoy receptor IL1-R2. IL-1β promotes significant improvement in the functional capacity of lupus EPCs/CACs, therefore abrogating the deleterious effects of IFN-α. We used microarrays to analyze the effect of IFNα on peripheral blood EPCs/CACs and on bone marrow EPCs exposed to proangiogenic stimulation. This SuperSeries is composed of the SubSeries listed below. Human healthy and lupus EPCs and CACs from PBMCs, and healthy EPCs from bone marrow, were isolated and cultured under proangiogenic stimulation; after IFN-α incubation or not, RNA was extracted and processed for hybridization on Affymetrix microarrays.

2011-04-13 | E-GEOD-23203 | biostudies-arrayexpress

The role of CD11c in dendritic cells

Project description:We cultured bone marrow derived dendritic cells from WT and CD11c KO mice. Then, a group of bone marrow dendritic cells were stimulated with LPS overnight. We obtained bone marrow derived dendritic cells with or without LPS stimulation and analyzed proteomics profiles.

2024-01-26 | PXD048907 | iProX

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