Journal
CELL
Volume 184, Issue 6, Pages 1486-1499Publisher
CELL PRESS
DOI: 10.1016/j.cell.2021.02.031
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Funding
- SAMANA Kay MGH Research Scholars award
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Neonates rely on maternal antibodies transferred via the placenta and breast milk for protection, with breast milk antibodies playing important roles in preventing infections, supporting the selection of commensals, and promoting tolerizing immunity.
Neonates are born with an immature immune system and rely on the transfer of immunity from their mothers. Maternal antibodies are transferred via the placenta and breast milk. Although the role of placentally transferred immunoglobulin G (IgG) is established, less is known about the selection of antibodies transferred via breast milk and the mechanisms by which they provide protection against neonatal disease. Evidence suggests that breast milk antibodies play multifaceted roles, preventing infection and supporting the selection of commensals and tolerizing immunity during infancy. Here, we discuss emerging data related to the importance of breast milk antibodies in neonatal immunity and development.
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