eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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4/2018
vol. 43
 
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abstract:
Experimental immunology

Preconception immunization can modulate intracellular Th2 cytokine profile in offspring: in vivo influence of interleukin 10 and B/T cell collaboration

Marília Garcia de Oliveira, Aline Aparecida de Lima Lira, Fábio da Ressureição Sgnotto, Amanda Harumi Sabô Inoue, Alberto José da Silva Duarte, Jefferson Russo Victor

(Centr Eur J Immunol 2018; 43 (4): 378-388)
Online publish date: 2018/12/31
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Introduction
In the last few years our group has been studying the mechanisms involved in the inhibition of allergy in offspring mediated by preconception maternal immunization, but these mechanisms are not fully understood. Such mechanisms that we have studied aimed at the passive transfer of maternal antibodies and its influence on offspring immune status.

Aim of the study
To evaluate whether maternal immunization could modulate intracellular Th1/Th2 profiles in offspring.

Material and methods
C57BL/6 female wild type mice (WT), interleukin (IL)-10-/- or CD28-/- mice were immunized or not with ovalbumin (OVA) and were mated with respective lineage males and offspring were evaluated at 3 days old (d.o.), 20 d.o., or 20 d.o. after neonatal immunization.

Results
Preconception OVA immunization induced a marked reduction in IL-4 secretion by TCD4+ cells of WT offspring when compared with offspring from non-immunized mothers. The maternal immunization of IL-10-/- mice induced an increase in the TCD4+IL-4+ percentage in offspring and a reduction in TCD4+IFN-+ cells. The maternal immunization in CD28-/- mice induced augment IL-4 intensity in 3 and 20 d.o. offspring TCD4+ cells.

Conclusions
Our results reveal that maternal immunization with OVA can down-regulate the Th2 pattern in offspring and this regulation is dependent on IL-10 and B/T cell collaboration.

keywords:

allergy, OVA, maternal fetal-interface, IL-10, Th1/Th2 balance, B cells

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