title: The interleukin-1 receptor antagonist influences interleukin-1 effects in rat and mouse.
abstract: In this work we have focused on the ability of interleukin-1 to induce an acute phase protein response and a degranulation of polymorphonuclear leukocytes in vivo. The capacity of the interleukin-1 receptor antagonist to influence these events was also investigated. It was shown that interleukin-1 induced an acute phase protein response in rats and mice. In rats alpha(2)-macroglubolin levels were increased in plasma after an interleukin-1 injection whereas alpha(1)-inhibitor-3 decreased in plasma. In the mice plasma amyloid P was increased. The interleukin-1 receptor antagonist blocked the increase of alpha(2)-macroglobulin and plasma amyloid P in a dose dependent way while the effect on the alpha(1)-inhibitor-3 decrease was less pronounced. Interleukin-1 led to polymorphonuclear leukocyte degranulation in vivo as measured by increased cathepsin G plasma levels. The interleukin-1 receptor antagonist could influence the early phase of this degranulation.
authors.affiliation: Department of Surgical Pathophysiology University of Lund, Malmö General Hospital Malmö S-214 01 Sweden.
authors.forename: P
authors.initials: P
authors.lastname: Bjrök
authors.forename: K
authors.initials: K
authors.lastname: Ohlsson