During pregnancy, innate immune mechanisms at the maternal–fetal interface are important for protecting the developing fetus from pathogens. However, excessive immune activation can be harmful to the fetus, and these pathways must be properly regulated. Here, the authors discuss the growing understanding of the unique innate immune pathways that operate in the maternal and fetal compartments of the placenta.
- Yael Alippe
- Joshua Hatterschide
- Michael S. Diamond