What question did this study set out to answer?

To determine if VEGF and hypoxia independently regulate MDR1 expression in endothelial cells and to investigate MDR1's role in angiogenesis.

VEGF and Hypoxia Independently Induce MDR1 Expression to Promote Endothelial Cell Angiogenesis

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Investigates VEGF and hypoxia regulating MDR1 expression in endothelial cells, suggesting new therapeutic targets for angiogenesis-related diseases.

To determine if VEGF and hypoxia independently regulate MDR1 expression in endothelial cells and to investigate MDR1's role in angiogenesis.
Human umbilical vein endothelial cells (HUVECs) were treated with VEGF or exposed to hypoxia.
MDR1 mRNA and protein expression were assessed using quantitative real-time PCR and Western blotting.
Functional assays included migration, invasion, tube formation, and cell viability after MDR1 manipulation.
Hypoxia-inducible factor 1-alpha (HIF-1α) was overexpressed to assess its role in regulating MDR1.
VEGF induced MDR1 expression in a dose- and time-dependent manner.
MDR1 overexpression enhanced endothelial migration, invasion, tube formation, and cell viability.
MDR1 knockdown reduced VEGF-induced angiogenic responses.
Hypoxia and HIF-1α overexpression also significantly increased MDR1 expression independently of VEGF.

Choi et al. (2026) studied this question.

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View Full Paper

Ask AI

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Authors

Investigates VEGF and hypoxia regulating MDR1 expression in endothelial cells, suggesting new therapeutic targets for angiogenesis-related diseases.

To determine if VEGF and hypoxia independently regulate MDR1 expression in endothelial cells and to investigate MDR1's role in angiogenesis.
Human umbilical vein endothelial cells (HUVECs) were treated with VEGF or exposed to hypoxia.
MDR1 mRNA and protein expression were assessed using quantitative real-time PCR and Western blotting.
Functional assays included migration, invasion, tube formation, and cell viability after MDR1 manipulation.
Hypoxia-inducible factor 1-alpha (HIF-1α) was overexpressed to assess its role in regulating MDR1.
VEGF induced MDR1 expression in a dose- and time-dependent manner.
MDR1 overexpression enhanced endothelial migration, invasion, tube formation, and cell viability.
MDR1 knockdown reduced VEGF-induced angiogenic responses.
Hypoxia and HIF-1α overexpression also significantly increased MDR1 expression independently of VEGF.

Choi et al. (2026) studied this question.

View Full Paper

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