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Related Concept Videos

Hormonal Regulation01:33

Hormonal Regulation

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The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
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Transcytosis of IgG01:15

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Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis.
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
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Related Experiment Video

Updated: Jan 13, 2026

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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Immune Cells in Preeclampsia.

Nathan Campbell1, Marcus Robbins1, Hellen Nembaware1

  • 1Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA.

International Journal of Molecular Sciences
|January 10, 2026
PubMed
Summary
This summary is machine-generated.

Preeclampsia involves pregnancy-induced hypertension linked to chronic inflammation. Immune cells like T cells, B cells, and macrophages contribute to placental and organ damage, suggesting immunotherapy as a potential treatment.

Keywords:
B cellsNK cellsT cellsautoimmunityimmunologymacrophagespreeclampsia

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Area of Science:

  • Immunology
  • Obstetrics
  • Pathophysiology

Background:

  • Preeclampsia (PE) is characterized by new-onset hypertension during pregnancy.
  • PE is associated with chronic inflammation in the placenta and systemically.
  • Placental ischemia in PE triggers anti-angiogenic factors and inflammatory mediators, leading to organ damage.

Purpose of the Study:

  • To investigate the role of the immune system in preeclampsia pathophysiology.
  • To explore immune cell involvement in placental and systemic inflammation during PE.
  • To identify potential therapeutic targets within the immune system for improved maternal and fetal outcomes.

Main Methods:

  • Review of existing literature on immune cell function in preeclampsia.
  • Analysis of inflammatory mediators and cellular pathways implicated in PE.
  • Examination of the contribution of T cells, B cells, Natural Killer cells, and macrophages.

Main Results:

  • T helper cells promote chronic inflammation and activate B cells to produce autoantibodies.
  • Natural Killer cells shift towards a cytotoxic phenotype, contributing to tissue damage.
  • Macrophages polarize to proinflammatory subtypes, exacerbating inflammation and tissue damage.

Conclusions:

  • The immune system plays a critical role in preeclampsia development and progression.
  • Immune dysregulation contributes to placental, renal, and vascular damage in PE.
  • Targeting immune pathways offers a promising strategy for therapeutic interventions in preeclampsia.