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The role of TERF2IP (Telomeric repeat binding factor 2-interacting protein) in regulating disturbed flow-induced changes of gene expression

ABSTRACT: To understand the function of TERF2IP in ECs, we isolated total RNAs from human aortic endothelial cells (HAECs) transfected with control or TERF2Ip siRNA and transcriptionally profiled them.

ORGANISM(S): Homo sapiens

PROVIDER: GSE119407 | GEO | 2019/06/21

REPOSITORIES: GEO

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The role of TERF2IP (Telomeric repeat binding factor 2-interacting protein) in regulating disturbed flow-induced changes of gene expression

Project description:The role of TERF2IP (Telomeric repeat binding factor 2-interacting protein) in regulating disturbed flow-induced changes of gene expression

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Splice Factor Polypyrimidine tract-binding protein 1 (Ptbp1) Primes Endothelial Inflammation in Atherogenic Disturbed Flow Conditions [Ptbp1]

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Transcription profiling of pig aortic endothelium taken from regions of disturbed and undisturbed flow

Project description:This study investigates the role of endothelial cell (EC) gene expression in the focal origin of atherosclerosis, particularly in response to local hemodynamics. Differential gene expression was profiled in EC isolated from athero-susceptible and athero-protected regions of the normal pig aorta. Specifically, a region of disturbed flow (DF, the inner aortic arch) was compared to a region of undisturbed flow (UF, descending thoracic aorta). Linearly amplified RNA was used to screen nylon filter arrays of 13,824 human cDNAs.

2006-07-21 | E-CBIL-17 | biostudies-arrayexpress

The role of MAGI1 (membrane-associated guanylate kinase with inverted domain structure-1) in regulating disturbed flow-induced changes of gene expression

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Effect of H2O2 and Collagen tripeptide (CTP) on endothelial cells and smooth muscle cells in cell culture

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ChIP-seq of H3K27acethylation of human aortic endothelial cells (HAECs) treated with Cobalt chloride (CoCl2)

Project description:Endothelial-to-mesenchymal transition (EndMT) is a fundamental process in vascular remodeling, and hypoxia is known to induce EndMT and involved in cardiovascular disease development. Cobalt chloride (CoCl2), a chemical inducer of hypoxia-inducible factor-1 (HIF-1) could influence cellular function and its differentiation. However, exact molecular mechanism how stabilization of HIF-1 by cobalt chloride in human primary ECs affects cellular behavior and EndMT process is largely unknown. In this study, we performed ChIP-seq for H3K27ac in human aortic endothelial cells (HAECs) treated with CoCl2

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Evidence for the importance of OxPAPC interaction with cysteines in regulating endothelial cell function

Project description:Oxidation products of 1-palmitoyl-2-arachidonoyl-sn-glycerol-2-phosphatidylcholine (PAPC), referred to as OxPAPC, accumulate in atherosclerotic lesions and regulate over 1000 genes in human aortic endothelial cells (HAEC). We previously demonstrated that OxPAPC covalently binds to a number of proteins in HAEC. The goal of these studies was to gain insight into the binding mechanism and determine if binding regulates activity. In whole cells N-acetylcysteine inhibited gene regulation by OxPAPC, and blocking cell cysteines with N-ethylmaleimide strongly inhibited OxPAPC binding. Using MS, we demonstrate that most of the binding of OxPAPC to cysteine is mediated by PEIPC. We also show that OxPAPC binds to a model protein, H-Ras, at cysteines previously shown to regulate activity in response to 15dPGJ2. This binding was observed with recombinant protein and in cells overexpressing H-Ras. 15dPGJ2 and OxPAPC increased H-Ras activity at comparable concentrations. Using microarray analysis, we demonstrate a considerable overlap of gene regulation by OxPAPC and 15dPGJ2 in HAEC, suggesting that some effects attributed to 15dPGJ2 may also be regulated by OxPAPC since OxPAPC lipids and 15dPGJ2 both accumulate in inflammatory sites. Overall, we provide evidence for the importance of OxPAPC-cysteine interactions in regulating HAEC function. Control, OxPAPC, and 15dPGJ2-treated HAECs Samples. 'Control' is media (1%FBS, 99%M199)-only treated HAECs. 15dPGJ2 and OxPAPC are treated with those respective compounds in media.

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RNA-Seq of human aortic endothelial cells with lysophosphatidylinositol against untreated controls

Project description:Vascular Innate immune cells, such as macrophages, elicit long-term T cell-, and B cell- immune responses, by expressing danger-associated molecular pattern (DAMP) receptors, T cell co-stimulation receptors and presenting antigens to the adaptive system through major histocompatibility complex (MHC)-II. Here, we investigated whether human aortic endothelial cells (HAECs) could also be “transdifferentiated” into innate immune cells after treatment of hyperlipidemia-upregulated DAMP molecules, lysophosphatidylinositol (LPI). HAECs were treated with vehicle control or lysophosphatidylinositol (16:0) (10µM) for 18 hours.

2018-05-16 | E-MTAB-6605 | biostudies-arrayexpress

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