Fibrinogen and its oxidized form induce interleukin-8 [correction of interleukin-2] production in cultured endothelial cells of human vessels.

Oxidized fibrinogen was more potent than native fibrinogen in inducing interleukin-8 production in primary culture of human endothelial cells. The optimal concentration of oxidized fibrinogen was 3 mg/ml. The optimal time of UV irradiation was 17 min. Secretion of interleukin-8 was maximum during culturing of endothelial cells in a serum-free medium.