Prostaglandins and inflammatory cell movement in vitro.

The prostaglandins PGE1, E2, F2alpha, and A1, had no significant cell migration inhibitory or chemotactic activity for guinea pig peritoneal exudate cells when tested in vitro using respectively the capillary tube cell migration test and the Boyden chamber test for chemotaxis. PGE1 and PGE2 also did not affect the positive chemotactic action of lymphokine. The proposed role of prostaglandins as chemotactic agents in inflammatory responses therefore should be treated with some caution.