What question did this study set out to answer?

To determine whether increased placental release of soluble VEGFR-1 impairs vascular endothelial growth factor and placenta growth factor signaling, thereby inhibiting angiogenesis in preeclampsia.

October 8, 2004Circulation ResearchOpen Access

Elevated Placental Soluble Vascular Endothelial Growth Factor Receptor-1 Inhibits Angiogenesis in Preeclampsia

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Authors

SAShakil AhmadAston University AAAsif AhmedBirmingham City University

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Implication

Ex vivo study reveals elevated placental sVEGFR-1 suppresses angiogenesis in preeclampsia, suggesting a novel therapeutic target.

Key Points

To determine whether increased placental release of soluble VEGFR-1 impairs vascular endothelial growth factor and placenta growth factor signaling, thereby inhibiting angiogenesis in preeclampsia.
Analyzed conditioned media from normal and preeclamptic placental villous explants cultured in vitro under normoxic, hypoxic, and tumor necrosis factor-alpha-stimulated conditions.
Assessed endothelial cell migration and capillary tube formation in vitro using conditioned media, exogenous sVEGFR-1 supplementation, and sVEGFR-1 immunoprecipitation.
Preeclamptic villous explants demonstrated a four-fold increase in sVEGFR-1 release, decreasing VEGF/sVEGFR-1 and PlGF/sVEGFR-1 ratios by 53% and 70%, respectively, relative to normal pregnancies.
Exposure to hypoxia (P<0.001) and tumor necrosis factor-alpha (P<0.01) significantly amplified sVEGFR-1 secretion in normal explants.
Preeclamptic conditioned medium significantly reduced endothelial cell migration and tube formation compared to normal medium (P<0.001), while immunoprecipitation of sVEGFR-1 restored both functions to normal levels (P<0.001).

Cite This Study

Ahmad et al. (2004) studied this question.

synapsesocial.com/papers/69d9b7f60d540cafc58373c8 https://doi.org/10.1161/01.res.0000147365.86159.f5

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Elevated Placental Soluble Vascular Endothelial Growth Factor Receptor-1 Inhibits Angiogenesis in Preeclampsia

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Key Points

Cite This Study

Elevated Placental Soluble Vascular Endothelial Growth Factor Receptor-1 Inhibits Angiogenesis in Preeclampsia

Discussion

Member takes

Implication

Key Points

Cite This Study

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