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Related Concept Videos

Development of Immunocompetence01:22

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Special Features of Adaptive Immunity01:20

Special Features of Adaptive Immunity

The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Transcytosis of IgG01:15

Transcytosis of IgG

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...
What is the Immune System?01:38

What is the Immune System?

Overview
Introduction to Lymphatic and Immune System01:23

Introduction to Lymphatic and Immune System

Immunity is a crucial biological concept about our body's inherent capacity to prevent infections and diseases. A complex network of cells and tissues collectively known as the immune system facilitates this natural defense mechanism. The immune system plays an integral role in maintaining our health and well-being, shielding us from potential health threats.
The immune responses can be categorized into two types: innate and adaptive. Innate immunity comprises nonspecific defenses we are born...

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Related Experiment Video

Updated: Jun 14, 2026

Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface
07:51

Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface

Published on: May 21, 2015

The immune system in pregnancy: a unique complexity.

Gil Mor1, Ingrid Cardenas

  • 1Department of Obstetrics, Gynecology and Reproductive Sciences, Reproductive Immunology Unit, School of Medicine, Yale University, New Haven, CT 06520, USA. gil.mor@yale.edu

American Journal of Reproductive Immunology (New York, N.Y. : 1989)
|April 7, 2010
PubMed
Summary

Pregnancy's immune response varies by pathogen, not a universal immune suppression. Understanding specific pathogen interactions with the fetal/placental unit is crucial for accurate maternal and fetal health guidelines.

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Last Updated: Jun 14, 2026

Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface
07:51

Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface

Published on: May 21, 2015

Isolation of Leukocytes from the Human Maternal-fetal Interface
08:19

Isolation of Leukocytes from the Human Maternal-fetal Interface

Published on: May 21, 2015

Isolation of Uterine Innate Lymphoid Cells for Analysis by Flow Cytometry
09:02

Isolation of Uterine Innate Lymphoid Cells for Analysis by Flow Cytometry

Published on: October 14, 2021

Area of Science:

  • Reproductive Immunology
  • Infectious Disease Immunology
  • Maternal-Fetal Medicine

Background:

  • Pregnancy involves complex immune adaptations, not simple immune suppression.
  • Generalizing pregnancy as high-risk for infections is inaccurate and hinders treatment guidelines.
  • Existing concepts, like pregnancy as transplantation, have oversimplified the field.

Purpose of the Study:

  • To challenge the generalized view of pregnancy immunology.
  • To emphasize pathogen-specific interactions with the fetal-placental unit.
  • To advocate for new approaches in reproductive immunology for better clinical outcomes.

Main Methods:

  • Review and re-evaluation of classical concepts in pregnancy immunology.
  • Analysis of pathogen tropism and placental immune responses.
  • Focus on the fetal-placental unit's interaction with specific infectious agents.

Main Results:

  • The maternal immune system's response is pathogen-dependent, not uniformly suppressed.
  • Generalized assumptions about pregnancy immunity impede effective pandemic response.
  • Pathogen-specific interactions dictate maternal susceptibility and disease severity.

Conclusions:

  • Accurate guidelines require understanding each pathogen's unique interaction with the mother-fetus unit.
  • Re-evaluating established immunological concepts is necessary for clinical advancement.
  • New approaches in reproductive immunology are vital for maternal and fetal well-being.