Inhibition of cell migrations by the linoleic acid oxygenation product 9S-hydroxy 10E,12Z octadecadienoic acid (9-HODE).

The linoleic acid metabolite 9S-HODE was prepared by means of tomato fruit lipoxygenase and purified by high-performance liquid chromatography (HPLC) to a high steric purity as judged by chiral-phase HPLC. 9S-HODE caused in the concentration range between 0.01 and 1 microM a strong dose-dependent inhibition of the migration of both cultured porcine aortic endothelial cells and of phytohaemagglutinin-stimulated human mononuclear cells. The effect was not observed with another polyenoic fatty acid metabolite, 15S-hydroperoxy-5Z,8Z,11Z,13E-eicosatetraenoic acid (15-HPETE). The results are discussed in the light of other biological actions of 9-HODE recently described.