D. Rukavina et Er. Podack, Abundant perforin expression at the maternal-fetal interlace: guarding thesemiallogeneic transplant!, IMMUNOL TOD, 21(4), 2000, pp. 160-163
The pregnant uterus harbors the highest concentration of perforin known to
occur in any physiological or pathological condition. This cytolytic molecu
le might therefore subserve an immune surveillance function protecting both
mother and fetus.