The presence of immune cells in the placental bed is important for both mother and child.
Although various immune cells can be found in the placental bed, such as regulatory T cells
and dendritic cells, uterine NK cells and macrophages are the most prominent immune cells
in the placental bed in early pregnancy. uNK cell and macrophage numbers in the placental
bed decrease in the third trimester. These cells seem to be specifically adapted for their
function and environment. uNK cells do not show cytotoxic activity, but are producers of …