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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

Immunological aspects of human amniotic fluid cells: implication for normal pregnancy

Wei-Hua Yan1, Aifen Lin, Xue-Jiao Chen

  • 1Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical College, Linhai, Zhejiang 317000, PR China. yanwhcom@yahoo.com

Cell Biology International
|October 9, 2007
PubMed

Insights

Amniotic fluid cells (AFCs) are active immune cells crucial for pregnancy. They express specific human leukocyte antigens (HLA) and produce cytokines like interleukin-6 (IL-6), with HLA-DR expression inducible by interferon-gamma (IFN-γ).

Area of Science:

  • Immunology
  • Reproductive Biology
  • Cell Biology

Background:

  • Amniotic fluid cells (AFCs) are vital for prenatal diagnosis but their immunological properties remain underexplored.
  • Understanding the mechanisms of normal pregnancy requires detailed knowledge of AFC functions.

Purpose of the Study:

  • To investigate the immunological characteristics of AFCs, focusing on cytokine production and human leukocyte antigen (HLA) expression.
  • To elucidate the implications of these immunological aspects for pregnancy maintenance.

Main Methods:

  • Analysis of HLA expression in 86 AFC samples before and after in vitro culture.
  • Quantification of cytokine production in AFC culture supernatants using flow cytometry.
  • Assessment of interferon-gamma (IFN-γ) induced HLA-DR expression in cultured AFCs.

Main Results:

  • Both fresh and cultured AFCs express HLA class I and HLA-G, but not HLA-DR.
  • Cultured AFCs predominantly secrete the cytokine interleukin-6 (IL-6).
  • IFN-γ treatment induced HLA-DR expression on cultured AFCs in a dose-dependent manner.

Conclusions:

  • AFCs are functionally active immune cells with significant roles in pregnancy.
  • Their cytokine production and HLA expression profile contribute to the maternal-fetal interface and immune regulation during gestation.

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