PGE2 at certain concentrations exerts a proapoptotic effect on bovine NK cells7.
Blockade of EP1–4 receptors does not prevent the PGE2-induced apoptosis of NK cells.
PGE2 at certain concentrations impairs the proliferation of NK cells in cattle.
Anti-proliferative action of PGE2 on bovine NK cells is mediated via the EP4 receptor