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Trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

ABSTRACT: Trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

PROVIDER: PRJNA910093 | ENA |

REPOSITORIES: ENA

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Vascular endothelial growth factor (VEGF) isoform regulation of early forebrain development

Project description:This work was designed to determine the role of the vascular endothelial growth factor A (VEGF) isoforms during early neuroepithelial development in the mammalian central nervous system (CNS), specifically in the forebrain. An emerging model of interdependence between neural and vascular systems includes VEGF, with its dual roles as a potent angiogenesis factor and neural regulator. Although a number of studies have implicated VEGF in CNS development, little is known about the role that the different VEGF isoforms play in early neurogenesis. We used a mouse model of disrupted VEGF isoform expression that eliminates the predominant brain isoform, VEGF164, and expresses only the diffusible form, VEGF120. We tested the hypothesis that VEGF164 plays a key role in controlling neural precursor populations in developing cortex. We used microarray analysis to compare gene expression differences between wild type and VEGF120 mice at E9.5, the primitive stem cell stage of the neuroepithelium. We quantified changes in PHH3-positive nuclei, neural stem cell markers (Pax6 and nestin) and the Tbr2-positive intermediate progenitors at E11.5 when the neural precursor population is expanding rapidly. Absence of VEGF164 (and VEGF188) leads to reduced proliferation without an apparent effect on the number of Tbr2-positive cells. There is a corresponding reduction in the number of mitotic spindles that are oriented parallel to the ventricular surface relative to those with a vertical or oblique angle. These results support a role for the VEGF isoforms in supporting the neural precursor population of the early neuroepithelium. Four samples each of E9.5 wildtype or VEGF120 mouse forebrain were analyzed with the Mouse 430 2.0 Affymetrix GeneChip

2011-12-01 | E-GEOD-30767 | biostudies-arrayexpress

Vascular endothelial growth factor (VEGF) isoform regulation of early forebrain development

2011-12-01 | GSE30767 | GEO

Trasncripional regulation by FOXO1 in Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

Project description:FOXO1 was involved in various biologucal processes. In endothelial cells, it has reported that FOXO1 was phosphorylated by PI3K-Akt signaling, and it was nuclear exclusion by short-term VEGF stimulation. This event turns off the expression of apoptosis-related genes, it protects the cell from apoptosis. On the other hand, long-term VEGF stimulation, FOXO1 re-entry into the nucleus and induces the expression of different genes. Therefore, to identify genes regulated by FOXO1 in long-term VEGF stimulation, we performed RNA-seq analysis of FOXO1-knockdowned human unbilical vein endothelial cells (HUVECs) by siRNA and 18h VEGF treatment.

2024-03-01 | GSE220504 | GEO

Single-cell trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

Project description:Single-cell trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

| PRJNA987984 | ENA

Trasncripional regulation by FOXO1 in Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

Project description:Trasncripional regulation by FOXO1 in Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

| PRJNA910094 | ENA

Trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

Project description:HUVEC cells were treated with human recombinant VEGF-A165 for either 0h or 18h. A total RNA sample was used for RNA-seq analysis.

2024-03-01 | GSE220505 | GEO

Single-cell trasncripional regulation by Vascular Endothelial Cell Growth Factor (VEGF) treatment in human endothelial cells

Project description:HUVEC cells were treated with human recombinant VEGF-A165 for either 0h or 18h. Whole cells were used for scRNA-seq analysis.

2024-03-01 | GSE235885 | GEO

Molecular biomarkers of neovascular age-related macular degeneration with incomplete response to anti-vascular endothelial growth factor treatment

Project description:The standard treatment for neovascular age-related macular degeneration (nAMD) consists of intravitreal anti-vascular endothelial growth factors (VEGF). However, for some patients, even maximal anti-VEGF treatment does notentirely suppress exudative activity. The goal of this study was to identify molecular biomarkers in nAMD with incomplete response to anti-VEGF treatment. Aqueous humor (AH) samples were collected from three groups of patients: 18 patients with nAMD responding incompletely to anti-VEGF, 19 patients affected by nAMD with normal treatment response, and 14 control patients without any retinopathy. Proteomic and multiplex analyses were performed on these samples. Proteomic analyses showed that nAMD patients with incomplete anti-VEGF response displayed an increased inflammatory response, complement activation, cytolysis, protein-lipid complex, and vasculature development pathways. Multiplex analyses revealed a significant increase of soluble vascular cell adhesion molecule-1 (sVCAM-1) [p=0.001], interleukin-6 (IL-6) [p=0.009], bioactive interleukin-12 (IL-12p40) [p=0.03], plasminogen activator inhibitor type 1 (PAI-1) [p=0.004], and hepatocyte growth factor (HGF)[p=0.004] levels in incomplete responders in comparison to normal treatment response. Interestingly, The same biomarkers showed a high intercorrelation with r2 values between 0.58 and 0.94. In addition, we confirmed by AlphaLISA the increase of sVCAM-1 [p<0.0001] and IL-6 [p=0.043] in incomplete responder group. Incomplete responders in nAMD are associated with activated angiogenic and inflammatory pathways. The residual exudative activity of nAMD despite maximal anti-VEGF treatment may be related to both angiogenic and inflammatory responses requiring specific adjuvant therapy.

2021-01-18 | PXD022471 | Pride

HMVEC cells treated with vascular endothelial growth factor, anthrax edema toxin, and an Epac activator

Project description:Human microvascular endothelial cells (HMVEC) treated with vascular endothelial growth factor (VEGF), Antrhax Edema Toxin (ET), or the Epac activator, 8-pCPT-2'-O-Me-cAMP (8CPT) Human microvascular endothelial cells (HMVEC) were treated with VEGF alone or VEGF in combination with either the the Epac-specific cAMP-mimetic, 8-pCPT-2'-O-Me-cAMP (8CPT), or anthrax edema toxin (ET), an adenylyl cyclase. ET or 8CPT can inhibit VEGF-mediated chemotaxis and angiogenesis. The goal of the study was to identify genes regulated by cAMP production (ET) or by activation of Epac/Rap (8CPT) that may mitigate the effects of VEGF treatment.

2009-08-25 | GSE17777 | GEO

Apelin promotes Vascular Endothelial Growth Factor-C (VEGF-C)-induced lymphangiogenesis and metastasis in prostate cancer

Project description:Prostate cancer is the most common cancer in men and is often associated with distant metastasis in its later stages. Lymphangiogenesis has been identified as a critical factor in cancer metastasis, and the adipokine apelin has been implicated in cancer progression and metastasis. However, researchers have yet to elucidate the mechanisms by which apelin regulates the key lymphangiogenic factor, Vascular Endothelial Growth Factor-C (VEGF-C), to promote distant metastasis in prostate cancer. This study identified a strong positive correlation between apelin levels and prostate cancer metastasis. Apelin stimulation was shown to upregulate VEGF-C expression, promoting the formation of new lymphatic vessels. Apelin treatment was also shown to downregulate miR-196a-5p expression via the proto-oncogene tyrosine kinase c-Src (c-Src) and Signal transducer and activator of transcription 3 (STAT3) signaling pathways, which regulates VEGF-C expression and lymphangiogenesis in prostate cancer cell lines. In an orthotopic mouse model, apelin inhibition prevented lymphangiogenesis and distant metastasis. These findings suggest that targeting apelin could be a promising therapeutic approach to preventing prostate cancer metastasis and lymphangiogenesis

2024-11-09 | GSE281393 | GEO

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