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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

Neonatal immune responses to microbial stimuli: is there an influence of maternal allergy?

Petra Amoudruz1, Ulrika Holmlund, Vivianne Malmström

  • 1Department of Immunology, Wenner-Gren Institute, Stockholm University, Stockholm, Sweden.

The Journal of Allergy and Clinical Immunology
|June 9, 2005
PubMed

Insights

Maternal allergy may impact infant immune responses. Cord blood monocytes from infants born to mothers with allergies show reduced TLR2/TLR4 expression and lower IL-6 response to microbial stimuli, suggesting altered immune development.

Area of Science:

  • Immunology
  • Allergy Research
  • Perinatal Health

Background:

  • Environmental factors are implicated in atopic allergy development.
  • Maternal allergy during pregnancy may influence fetal immune system development.
  • The in utero environment's role in immune programming is critical.

Purpose of the Study:

  • To investigate immune cell responses in newborns based on maternal allergy status.
  • To compare cord blood mononuclear cell (CBMC) responses to microbial stimuli.
  • To understand how maternal allergy affects infant immune cell function.

Main Methods:

  • Collected cord blood mononuclear cells (CBMCs) and maternal peripheral blood mononuclear cells (PBMCs).
  • Stimulated cells in vitro with lipopolysaccharide (LPS) and peptidoglycan.
  • Analyzed cell surface receptor expression (TLR2, TLR4, CD14) and cytokine/chemokine release (IL-6, TNF-alpha, etc.).

Main Results:

  • CBMCs from infants of mothers with allergy exhibited lower TLR2 and TLR4 expression compared to maternal cells.
  • CBMCs from infants of mothers with allergy showed a reduced IL-6 response to peptidoglycan.
  • These differences were observed both before and after microbial stimulation.

Conclusions:

  • Maternal allergy influences the immune response of cord blood monocytes and CBMCs.
  • Infants born to mothers with allergies may have monocytes with a diminished capacity to respond to microbial stimuli.
  • Findings suggest a potential link between maternal allergy and altered neonatal immune programming.
Abstract

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