5,12dihete

Leukotriene B4 (LTB4) 是一种通过 5-脂氧合酶途径从花生四烯酸衍生而来的化合物，可介导某些炎症和免疫反应。Leukotriene B4 诱导中性粒细胞胞外陷阱阻碍肺孢子菌的清除。

5(S),12(S)-DiHETE is a natural bioactive lipid derived from arachidonic acid . It is synthesized by glycogen-induced rabbit peritoneal polymorphonuclear leukocytes (PMNLs) incubated with AA. 5(S),12(S)-DiHETE can be produced by successive oxygenation of AA by 5-lipoxygenase (5-LO) in platelets and 12-LO in leukocytes. It can also be synthesized from 12(S)-HETE by 5-LO, in the presence of 5-LO activating protein (FLAP), activated with calcium ionophore. 5(S),12(S)-DiHETE is an epimer of leukotriene B4 that is weakly chemotactic for PMNL.