Related Experiment Video
Updated: Apr 14, 2026

Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
Published on: January 26, 2024
The role of extracellular vesicles in placental vascular complications
1Microvesicles Research Laboratory, Thrombosis and Hemostasis Unit, Department of Hematology, Rambam Health Care Campus; Haifa, Israel; Bruce Rappaport Faculty of Medicine, Technion, Israel Institute of Technology; Haifa, Israel.
Abstract:
Extracellular membrane vesicles (EVs) also termed microvesicles (MVs) are secreted from different cells, are present in the blood circulation under normal physiological conditions, and their levels increase in a wide range of disease states. EVs contain proteins, growth and apoptotic factors, DNA fragments, microRNAs as well as messenger RNAs (mRNAs); therefore, they may function as regulators in cell-cell communication and mediators of cell signaling during multiple biological processes. The current review focuses on the role of EVs in healthy pregnancy and gestational vascular complications and discusses the involvement of EVs in gene regulation, placental hemostasis and cell function that overall reflect the placental-maternal crosstalk.
Insights
Extracellular vesicles (EVs) are crucial for cell communication and signaling. This review explores their role in healthy pregnancy and gestational vascular complications, highlighting placental-maternal crosstalk.
Area of Science:
- Reproductive biology
- Cellular biology
- Biochemistry
Background:
- Extracellular vesicles (EVs), also known as microvesicles (MVs), are released by cells and found in circulation.
- EVs carry diverse biomolecules, including proteins, nucleic acids (DNA, microRNAs, mRNAs), and growth factors.
- Their levels are altered in various disease states, suggesting roles in pathology and physiology.
Purpose of the Study:
- To review the multifaceted roles of EVs in normal pregnancy.
- To examine the involvement of EVs in the pathophysiology of gestational vascular complications.
- To elucidate the mechanisms by which EVs mediate placental-maternal communication.
Main Methods:
- Literature review of existing research on EVs in pregnancy.
- Analysis of studies investigating EV content and function.
- Synthesis of data on EV involvement in placental hemostasis and gene regulation.
Main Results:
- EVs play significant roles in regulating gene expression, maintaining placental hemostasis, and influencing cell function during pregnancy.
- Altered EV profiles are associated with gestational vascular complications.
- EVs are key mediators of placental-maternal crosstalk.
Conclusions:
- EVs are vital components of intercellular communication during pregnancy.
- Understanding EV dynamics offers insights into healthy pregnancy and potential therapeutic targets for gestational vascular disorders.
- Further research into EVs can advance diagnostics and treatments for pregnancy complications.
Related Concept Videos
Development of Blood Vessels
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
Venous Thrombosis I: Introduction
Overview of Exosomes
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
Fetal Circulation
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Formation of the Platelet Plug
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...

