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Related Concept Videos

EPS and iPS Cells in Disease Research01:21

EPS and iPS Cells in Disease Research

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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Related Experiment Video

Updated: Jun 15, 2025

Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
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Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles

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A Novel Stem Cell Model to Study Preeclampsia Endothelial Dysfunction.

Yanming Wu1, Tianyanxin Sun1, Pedro Medina2

  • 1Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA.

Reproductive Sciences (Thousand Oaks, Calif.)
|August 23, 2024
PubMed
Summary
This summary is machine-generated.

Researchers developed a patient-specific endothelial cell model using induced pluripotent stem cells to study preeclampsia. This model revealed impaired nitric oxide release and cell function when exposed to preeclamptic sera, aiding research into endothelial dysfunction.

Keywords:
Endothelial dysfunctionHypertensionInduced pluripotent stem cells (iPSCs)PreeclampsiaPregnancy

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Area of Science:

  • Obstetrics and Gynecology
  • Cardiovascular Biology
  • Stem Cell Biology

Background:

  • Preeclampsia affects 5-7% of pregnancies globally, with maternal endothelial dysfunction as a key factor.
  • Understanding preeclampsia pathogenesis is limited by the scarcity of patient-specific endothelial cells for research.
  • A robust in vitro model is needed to investigate patient-specific endothelial dysfunction in preeclampsia.

Purpose of the Study:

  • To establish a renewable, patient-specific in vitro endothelial cell (EC) model for preeclampsia research.
  • To investigate the impact of sera from different pregnancy states on endothelial cell function.
  • To enable mechanistic studies of endothelial dysfunction in preeclampsia on a patient-specific basis.

Main Methods:

  • Induced pluripotent stem cells (iPSCs) from normotensive pregnancies were differentiated into endothelial cells (ECs).
  • Patient-derived iPSC-ECs were exposed to pooled sera from normotensive pregnancies, preeclamptic pregnancies, and non-pregnant controls.
  • Endothelial functions including nitric oxide (NO) release, cell migration, tube formation, and viability were assessed.

Main Results:

  • Preeclamptic sera significantly reduced nitric oxide (NO) release compared to controls.
  • Endothelial cell migration and tube formation were impaired by preeclamptic sera.
  • Cell viability was unaffected by any sera treatment, and results were consistent across patient-specific lines.

Conclusions:

  • Patient-derived iPSC-ECs provide a novel model for studying preeclampsia.
  • This model facilitates exploration of maternal endothelial health and circulating factors in preeclampsia.
  • The model aids in dissecting the mechanisms of endothelial dysfunction in preeclampsia.