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MRNA expression profiles in far-infrared treated human endothelial precursor cells

ABSTRACT: High glucose impairs the angiogenic activities of late endothelial precursor cells (EPC). We found that far infrared (FIR) treatment restored partially the activity of late EPC. However, the mechanisms are unclear. We performed gene expression microarray analysis to assess the expression profiles of high glucose-treated late EPC with or without FIR treatment. Late EPCs isolated from peripheral blood were cultured in high glucose condition for 48 hours, and then treated with or without FIR radiation for 30 minutes. Total RNA were extracted and evaluated with the Affymetrix GeneChip Human U133 plus 2.0 arrays.

ORGANISM(S): Homo sapiens

SUBMITTER: Tse-Shun Huang

PROVIDER: E-GEOD-37044 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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microRNA expression profiles in far-infrared treated human endothelial precursor cells

Project description:High glucose impairs the angiogenic activities of late endothelial precursor cells (EPC). We found that far infrared (FIR) treatment restored partially the activity of late EPC. However, the mechanisms are unclear. We applied microRNA expression microarrays to assess the microRNA expression profiles of high glucose-treated late EPC with or without FIR treatment. Late EPCs isolated from peripheral blood were cultured in high glucose condition for 48 hours, and then treated with or without FIR radiation for 30 minutes. Total RNA were extracted and evaluated with the Agilent Human miRNA Oligo Microarray R14 V2 chips.

2014-04-03 | E-GEOD-37043 | biostudies-arrayexpress

mRNA expression profiles in far-infrared treated human endothelial precursor cells

2014-04-03 | GSE37044 | GEO

microRNA expression profiles in far-infrared treated human endothelial precursor cells

2014-04-03 | GSE37043 | GEO

Combined microRNA/mRNA transcriptome analysis reveals angiogenic microRNAs-genes pathway of human late endothelial precursor cells.

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2014-04-02 | E-GEOD-37046 | biostudies-arrayexpress

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. 3 samples, in duplicate: EPC, EPC_acLDL, and EPC_Late

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

Far Infrared Radiation Promotes Renal Proximal Tubule Cell Proliferation Functional Characteristics and Has Protective Effects against Cisplatin Nephrotoxicity

Project description:Far infrared radiation (FIR), a subdivision of the electromagnetic spectrum, has been proved to be beneficial for long-term effects of tissue healing, anti-inflammation, promoting growth, modulating sleep, acceleration of microcirculation, and pain relief. We attempt to study whether FIR would be beneficial for renal proximal tubule cell (RPTC) cultivation and renal tissue engineering. We observed the FIR effects on RPTCs, including cell viability, functional characteristics, immunofluorescence presentations, and subcellular findings. And the FIR protective effects would be further examined with HK-2 cell (Human proximal tubule cell line) against cisplatin, a nephrotoxic agent. Our study showed that daily exposure to FIR for 30 minutes could significantly increase rabbit RPTC viability in vitro assessed by MTT assay. FIR is not only beneficial in RPTC cell viability. RPTCs with FIR exposure presented higher expression of Na-K ATPase and GLUT1 (Glucose Transporter 1). The finding was documented with western blot analysis with statistical significance. With Q-PCR, CDK5R1, GNAS, NPPB, and TEK expressions were significantly enhanced. With HK-2 cell, the proximal tubule cell line, FIR had protective effects against cisplatin nephrotoxicity through reducing apoptosis. FIR is a potential photomodulation therapy to facilitate RPTC cultivation with higher cell viability and better functional chanacteristics and would possibly be applied in further nephrotoxicity protection and other cisplatin-sensitive cell protection.

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Gene expression patterns of distinct human endothelial precursor cells

Project description:Early EPCs (eEPCs) appear at less than 1 week in culture dishes, whereas late EPCs (LEPCs) appear late at 2-4 weeks. Distinct angiogenic properties between these two EPC subpopulations have been disclosed by the angiogenesis assay: late EPCs, but not eEPCs, form vascular networks de novo and are able to incorporate into vascular networks. On the contrary, eEPCs, but not late ones, indirectly augment tubulogenesis even when physically separated by a Transwell membrane, implying the involvement of a cytokine-based paracrine mechanism. Microarrays are great tools to M-bM-^@M-^\snapshotM-bM-^@M-^] the transcriptome profiles, and thus provide deeper insights into gene expressions and microRNA-gene interactions. Cord blood mononuclear cells (MNCs) were Histopaque-1077 isolated and plated in endothelial growth medium-2 on fibronectin-coated six-well plates at 37M-BM-0C. After 3 days of culturing, attached eEPCs appeared, and medium and nonadherent cells were removed. Thereafter, the medium were replaced every 2 days, and a certain number of eEPCs continued to grow into the LEPCs colonies, which emerge 2M-bM-^@M-^S4 weeks after the start of MNC culture. Total RNA of early and late EPCs were extracted and evaluated with Affymetrix GeneChip Human U133 plus 2.0

2014-04-03 | E-GEOD-37045 | biostudies-arrayexpress

Feeder-Independent Derivation of Induced-Pluripotent Stem Cells From Peripheral Blood Endothelial Progenitor Cells

Project description:The objective of this study was to reprogram peripheral blood-derived late-endothelial progenitor cells (EPCs) to a pluripotent state under feeder-free and defined culture conditions. Late-EPCs were retrovirally-transduced with OCT4, SOX2, KLF4, c-MYC, and iPSC colonies were derived in feeder-free and defined media conditions. EPC-iPSCs expressed pluripotent markers, were capable of differentiating to cells from all three germ-layers, and retained a normal karyotype. Transcriptome analyses demonstrated that EPC-iPSCs exhibit a global gene expression profile similar to human embryonic stem cells (hESCs). We have generated iPSCs from late-EPCs under feeder-free conditions. Thus, peripheral blood-derived late-outgrowth EPCs represent an alternative cell source for generating iPSCs. Six samples were analyzed. The gene expression profile of four iPS clones were compared to the H9 human embryonic stem cell line and the parent endothelial progenitor cell line.

2012-12-16 | E-GEOD-42947 | biostudies-arrayexpress

SScHuEx

Project description:To determine the gene expression profile of endothelial cells derived from endothelial progenitor (EPCs) issued from EPC-derived endothelial cells collected from 10 SSc patients (5 patients with the diffuse cutaneous subset and 5 patient with the limited cutaneous subset) and 5 healthy controls before and after hypoxic exposure.

2012-01-20 | E-MEXP-3075 | biostudies-arrayexpress

Genetic module and miRNome trait analyses reflect the distinct biological features of endothelial progenitor cells from different anatomic locations

Project description:Background: Endothelial progenitor cells (EPCs) play a fundamental role in post-natal vascular repair, yet EPCs from different anatomic locations possess unique biological properties. The underlying mechanisms are unclear. Method: We performed transcriptome analysis for EPCs isolated from 2 different sources: cord blood (CB) or adult peripheral blood (PB). Both gene expression microarray and small RNA sequencing (smRNA-seq) technologies were applied. Results: EPCs from CB expressed abundant genes involved in cell cycle, hypoxia signalling and blood vessel development, correlating with the phenotypes that CB-EPCs proliferated more rapidly, migrated faster, and formed tubule structure more efficiently. smRNA-seq further deciphered miRNome patterns in EPCs isolated from CB or PB: 54 miRNAs were enriched in CB-EPCs, while another 50 in PB-EPCs. Specifically, CB-EPCs expressed more angiogenic miRNAs such as miR-31, while PB-EPCs possessed more tumor suppressive miRNAs including miR-10a. Knocking down miR-31 levels in CB-EPCs suppressed cell migration and microtubule formation, while overexpressing miR-31 in PB-EPCs helped to recapitulate some of CB-EPC functions. Conclusion: Our results show the foundation for a more detailed understanding of EPCs from different anatomic sources. Stimulating the expression of angiogenic microRNAs or genes in EPCs of low activity (such as those from patients with cardiovascular diseases) might allow the development of novel therapeutic strategies. EPC from cord blood or peripheral blood that outgrown after 2-4 week culture were collected. The RNA are extracted and profiled by Affymetrix GeneChip U133 plus 2.0 expression array. This submission represents gene expression microarray component of study.

2012-09-21 | E-GEOD-39763 | biostudies-arrayexpress

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