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Related Experiment Video

Updated: Jun 4, 2025

Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
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Venous Endothelial Cell Transcriptomic Profiling Implicates METAP1 in Preeclampsia.

Maria A Pabon1, Robert M Weisbrod2, Claire Castro3

  • 1Cardiovascular Division (M.A.P., J.M.B., S.D., M.F.D.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.

Circulation Research
|December 27, 2024
PubMed
Summary
This summary is machine-generated.

This study identified METAP1 as a key factor in preeclampsia. Higher METAP1 expression in endothelial cells (ECs) increases preeclampsia risk and impairs blood vessel formation, offering new therapeutic targets.

Keywords:
RNA sequenceendothelial cellsendotheliumpreeclampsiapregnancy

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Isolation and Profiling of Human Primary Mesenteric Arterial Endothelial Cells at the Transcriptome Level
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Area of Science:

  • Endocrinology
  • Vascular Biology
  • Genetics

Background:

  • Preeclampsia is a pregnancy hypertensive disorder linked to endothelial dysfunction.
  • The precise mechanisms driving endothelial dysfunction in preeclampsia are not fully understood.
  • This research explores novel molecular pathways in endothelial cells (ECs) implicated in preeclampsia.

Purpose of the Study:

  • To investigate potential novel mechanisms of endothelial cell (EC) dysfunction in preeclampsia.
  • To identify and validate key genes involved in preeclampsia pathophysiology using transcriptional profiling and genetic analysis.

Main Methods:

  • Human venous endothelial cells (ECs) were isolated from preeclamptic and normotensive postpartum individuals.
  • Transcriptional profiling compared gene expression between groups.
  • Vascular-specific Mendelian randomization and in vitro functional assays validated candidate genes.

Main Results:

  • A significant association was found between higher genetically predicted METAP1 expression and increased preeclampsia risk.
  • METAP1 overexpression in ECs reduced angiogenesis and cell proliferation.
  • METAP1 influenced the expression of key preeclampsia-related genes, including VEGFA, FLT1, INHBA, and IL1B.

Conclusions:

  • Elevated METAP1 expression in vascular endothelial cells (ECs) is causally linked to preeclampsia risk.
  • METAP1 exhibits anti-angiogenic and pro-inflammatory effects in ECs, consistent with preeclampsia pathology.
  • Ex vivo EC transcriptomics can uncover novel preeclampsia mechanisms, aiding in prevention and treatment strategies.