Preconception allergen sensitization can induce B10 cells in offspring: a potential main role for maternal IgG.
Allergy Asthma Clin Immunol 2017;
13:22. [PMID:
28428801 PMCID:
PMC5392917 DOI:
10.1186/s13223-017-0195-8]
[Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 04/08/2017] [Indexed: 11/18/2022] Open
Abstract
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.
Electronic supplementary material
The online version of this article (doi:10.1186/s13223-017-0195-8) contains supplementary material, which is available to authorized users.
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