Review: Fetal antigens--identity, origins, and influences on the maternal immune system.
Pregnancy induces priming of the maternal cellular and humoral immune systems. The paternally-inherited fetal antigens that influence maternal T and B cells include both major and minor histocompatibility antigens - the same antigens that are problematic in allotransplantation. Animal models have facilitated our understanding of the lymphocyte responses to fetal antigens, and our appreciation of the parallel response in pregnant women is increasing. The physiologic properties of the placenta as well as trafficking of cells between mother and fetus allow ample opportunity for sampling of fetal proteins by the maternal immune system. Here, the current state of knowledge of fetal antigen-specific lymphocyte responses in pregnancy is reviewed.[1]References
- Review: Fetal antigens--identity, origins, and influences on the maternal immune system. Petroff, M.G. Placenta (2011) [Pubmed]
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