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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...
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.
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Teratogenicity01:07

Teratogenicity

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Infertility in Females01:28

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Related Experiment Video

Updated: Jun 13, 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

Fetal rejection: infertility and immunity.

Jacek R Wilczynski1

  • 1Polish Mother's Health Center Research Institute, Department of Gynecological Surgery, 281/289 Rzgowska Street, 93-338 Lódz, Poland. jrwil@post.pl

Expert Review of Clinical Immunology
|May 19, 2010
PubMed
Summary

Immune system defects reacting to fetal cells may cause recurrent pregnancy loss. Further research is needed to understand the distinct immunological mechanisms and autoantibodies involved in recurrent spontaneous abortions and recurrent early pregnancy failures.

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Last Updated: Jun 13, 2026

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Published on: October 13, 2023

Area of Science:

  • Reproductive immunology
  • Maternal-fetal immunology

Background:

  • Defective immune responses to fetal alloantigens are linked to recurrent spontaneous abortions (RSAs) and recurrent early pregnancy failures (REPFs).
  • REPFs are observed in couples with unexplained infertility and recurrent implantation failures post-in vitro fertilization.
  • While antiphospholipid syndrome is a known cause of pregnancy loss, the specific roles of various autoantibodies in RSA and REPF remain unclear.

Purpose of the Study:

  • To explore the immunological underpinnings of recurrent pregnancy loss.
  • To investigate the distinct mechanisms in RSAs and REPFs.
  • To evaluate the role of autoantibodies in these conditions.

Main Methods:

  • Review of existing literature on immunological factors in recurrent pregnancy loss.
  • Analysis of potential genetic backgrounds for RSA and REPF.
  • Examination of the contribution of autoantibodies.

Main Results:

  • Immunological mechanisms in RSA and REPF appear distinct.
  • A genetic basis for both syndromes is suspected but not yet identified.
  • The precise role of various autoantibodies in RSA and REPF requires further elucidation.

Conclusions:

  • Understanding the specific immune reactions and autoantibodies is crucial for diagnosing and treating recurrent pregnancy loss.
  • The effectiveness and safety of current immunotherapies for distinct forms of pregnancy loss warrant critical re-evaluation.