Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA93683 | ENA |
REPOSITORIES: ENA
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Project description:Human umbilical vein endothelial cells (HUVEC) or the human macrophage cell line, Mono-Mac-6, treated with Leukotriene D4 for 1 hour
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Project description:Human umbilical vein endothelial cells (HUVEC) or the human macrophage cell line, Mono-Mac-6, treated with Leukotriene D4 for 1 hour Keywords = Leukotriene-Transcriptome Keywords = Mono-Mac-6 Keywords = HUVEC Keywords: other
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Project description:Myeloid Angiogenic Cells (MACs) were infected with the intracellular, bacterial pathogen Bartonella henselae (B.h.). Infected cells were seeded onto Matrigel coated plates. While uninfected cells showed no phenotypic changes and died over time, infected cells showed strong phenotypic changes and developed into complex 2D chord networks over the course of long term culture (eg 49d). To examine the changes in gene expression associated with the development of the B.h.dependent chord formation phenotype, RNA was isolated from MACs shortly after isolation (d4) and from cells of the chord structures (+B.h. Matrigel). As primary endothelial cells are also know to form chord networks when cultured on Matrigel, a sample of human umbilical vein endothelial cells (HUVECs) cultured on Matrigel for 12hr was also included in the analysis as a control. myeloid angiogenic cells (MACs) from three donors were compared d4 after isolation with MACs infected with Bartonella henselae and cultured on Matrigel coated plates for up to 49 days, 1 sample from human umbilical cord vein endothelial cells (HUVECs) cultured for 12hr on Matrigel coated plates were also included as a control.
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Project description:Untargeted proteomics dataset of human dermal blood endothelial cells (HDBECs), human umbilical vein endothelial cells (HUVECs), human dermal lymphatic endothelial cells (HDLECs) and intestinal lymphatic endothelial cells (iLECs) in proliferation and quiescence.
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Project description:We quantified differential microRNA (miRNA) expression in Human umbilical vein endothelial cells （HUVECs）response to Angiogenin (ANG) treatment.These data were used to determine which miRNAs are altered on ANG in Human umbilical vein endothelial cells.
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Project description:Confluent human umbilical vein endothelial cells (HUVECs) were exposed to Thrombin (2 U/mL) for 2 hours. Ribosomal profiling via gradient centrifugation and fractionation was used to separate monosome, or under-translated, and polysome, or actively translated, mRNA species that were then used to probe cDNA arrays, a process known as Translation State Array Analysis (TSAA). Four samples were obtained from these experiments, Control Monosome, Control Polysome, Thrombin Monosome, and Thrombin Polysome. Using the normalized signal intensities from the GeneFilters, we calculated a translation index, or measure of movement of an mRNA molecule from the monosome to the polysome fraction upon stimulation. This calculation was made as follows: (thrombin polysome/thrombin monosome)/(control polysome/control monosome). Translational indices greater than 2.5 (upregulated) or lower than 0.4 (downregulated) were chosen for further study. TSAA data suggests that JunB is translationally regulated by thrombin stimulation. Immunocytochemistry, western blotting and RT-PCR were used to verify the results of TSAA. Keywords: Translation State Array Analysis
2006-05-31 | GSE4919 | GEO
Project description:Cysteinyl leukotrienes (cysLT), i.e. LTC4, LTD4, and LTE4, are lipid mediators derived from the 5-lipoxygenase pathway. The cysLT receptors cysLT1-R and cysLT2-R are expressed on different target cells and mediate inflammatory reactions in tissue- and LT-R-specific ways. Though endothelial cells (ECs) predominantly express cysLT2-Rs, their role in vascular biology remains to be defined. To delineate cysLT2-R´s action, we stimulated human umbilical vein EC with 100 nM LTD4 for 60 min, determined gene signatures by microarrays, and characterized the resulting EC phenotypes. As controls, we compared LTD4-induced genes with those induced by 10 nM thrombin, a prototype vasoactive activator of EC that binds to protease-activated receptor 1 (PAR-1). Following application of stringent filters 37 LTD4-upregulated genes were identified (> 2.5fold stimulation). Surprisingly, most of the LTD4-regulated genes were also induced by thrombin and expression of cysLT2-R- and PAR-1-regulated genes strongly correlated (Pearson correlation coefficient: r = 0.90). Moreover, LTD4 + thrombin, when added together, augmented expression of LTD4- or thrombin-stimulated genes (Wilcoxon signed rank test: p < 0.01). Prominently induced genes that may play roles in vascular injury were studied in detail: Early growth response (EGR) and nuclear receptor subfamily 4 group A; E-selectin; CXC ligand 2; interleukin 8 (IL-8); a disintegrin-like and metalloprotease (reprolysin type) with thrombospondin type 1 motif 1 (ADAMTS-1); and tissue factor (TF). Transcripts of these genes peaked at approximately 60 min, were unaffected by the cysLT1-R antagonist montelukast, and were superinduced by cycloheximide. The EC phenotype was markedly altered: LTD4 induced de novo synthesis of EGR1 protein and EGR1 localized in the nucleus in LTD4-stimulated cells; LTD4 upregulated IL-8 formation and secretion; and LTD4 raised TF protein and TF-dependent EC pro-coagulant activity. These data show that cysLT2-R activation results in a pro-inflammatory EC phenotype through activation of immediate-early genes that resemble those induced by PAR-1. As LTD4 and thrombin are formed concomitantly during vascular injury and pro-thrombotic states, cysLT2-R and PAR-1 may collaborate in vivo to mediate vascular injury and repair. Keywords: Leukotriene Transcriptome, Thrombin Transcriptome, HUVEC, Immediate-Early Gene Expression, Cysteinyl Leukotriene 2 Receptor Gene Signature in HUVEC
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