Lipid-derived lipoxins are produced at the site of vascular and mucosal inflammation where they down-regulate polymorphonuclear leukocyte recruitment and function. 5(S),6(R),15(R)-Lipoxin A4 (5(S),6(R),15(R)-LXA4) is derived from the aspirin-triggered formation of 15(R)-HETE from arachidonic acid. 5(S),6(R),15(R)-LXA4 inhibits LTB4-induced chemotaxis, adherence, and transmigration of neutrophils with twice the potency of LXA4 demonstrating activity in the nM range. The anti-inflammatory effects of aspirin may be ascribed in part to the ability of 5(S),6(R),15(R)-LXA4 to regulate leukocyte function.
产品描述
An aspirin-triggered lipoxin that inhibits LTB4-induced chemotaxis, adherence, and transmigration of the neutrophils with twice the potency of LXA4 demonstrating activity in the nM range