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BIBTEX RIS

Preconception allergen sensitization can induce B10 cells in offspring: a potential main role for maternal IgG

2017; BioMed Central; Volume: 13; Issue: 1 Linguagem: Inglês

10.1186/s13223-017-0195-8

1710-1492

Marília Garcia de Oliveira, Luana de Mendonça Oliveira, Aline Aparecida de Lima Lira, Fábio da Ressureição Sgnotto, Alberto José da Silva Duarte, Maria Notomi Sato, Jefferson Russo Victor,

Pregnancy and Medication Impact

The mechanisms through which allergies can be inhibited after preconception immunization with allergens are not fully understood. We aimed to evaluate whether maternal immunization can induce a regulatory B (B10) cell population in offspring in concert with allergy inhibition.C57BL/6 females were or were not immunized with OVA and were mated with normal WT males. Their offspring were evaluated at 3 days of age or 20 days after neonatal immunization. Human peripheral B cells from atopic and non-atopic individuals were also evaluated.Preconception OVA immunization induced B10 cells in offspring, and IL-10 production appeared to be critical for FcγRIIB upregulation in offspring B cells. Murine and human IL-10-producing B cells responded in vitro to IgG according to the atopic repertoire of the cells.Our results reveal that maternal immunization induces allergen-specific B10 cells in offspring and a pivotal role for the IgG repertoire in IL-10 production by murine and human B cells.