ArticleIn vitro cellular & developmental biology. Animal2024
The role of MDM2 in angiogenesis: implications for endothelial tip cell formation.
Article in In vitro cellular & developmental biology. Animal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In the present study, we examined the role of MDM2 in the angiogenesis process and its potential association with the sprouting of endothelial tip cells. To address this, we performed hypoxia-treated gastric cancer cells (HGC-27) to quantitative RT-PCR and Western blot analysis to measure the levels of MDM2 and VEGF-A mRNA and protein expression. Subsequently, we employed siRNA to disrupt MDM2 expression, followed by hypoxia treatment. The expression levels of MDM2 and VEGF-A mRNA and protein were subsequently reassessed. Additionally, ELISA was utilized to quantify the secretion levels of VEGF-A in each experimental group. A conditioned medium derived from HGC-27 cells treated with different agents was employed to assess its influence on the formation of EA.hy926 endothelial tip cells, using various techniques including Transwell plates migration assays, wound healing experiments, vascular formation assays, scanning electron microscopy, and immunofluorescence staining. These findings demonstrated that the in vitro knockdown of MDM2 in the conditioned medium exhibited significant inhibitory effects on endothelial cell migration, wound healing, and vascular formation. Additionally, the intervention led to a reduction in the presence of CD34
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