Background: 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. Methods: 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. Results: 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. Conclusions: 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.
CITATION STYLE
de Oliveira, M. G., Oliveira, L. de M., de Lima Lira, A. A., da Ressureição Sgnotto, F., Duarte, A. J. da S., Sato, M. N., & Victor, J. R. (2017). Preconception allergen sensitization can induce B10 cells in offspring: A potential main role for maternal IgG. Allergy, Asthma and Clinical Immunology, 13(1). https://doi.org/10.1186/s13223-017-0195-8
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