5(s)​​hpete

5(S)-Hydroperoxyeicosatetraenoic acid (5(S)-HpETE) is a monohydroperoxy polyunsaturated fatty acid (PUFA) generated by the enzymatic conversion of arachidonic acid via 5-lipoxygenase (5-LO). Subsequently, 5(S)-HpETE undergoes metabolism to form leukotriene A4 (LTA4), which serves as a pivotal intermediate in the synthesis of leukotrienes (LTs).

15(S)-HpETE 是在 15-脂氧合酶途径中形成的花生四烯酸的产物，抑制血管生成。15(S)-HpETE 可在细胞中上调 CD31、E-选择素和基因选择素的表达。

1-Stearoyl-2-15(S)-HpETE-sn-glycero-3-PC is a phospholipid that contains stearic acid at the sn-1 position and 15(S)-HpETE at the sn-2 position. It is produced via oxidation of 1-stearoyl-2-arachidonoyl-sn-glycero-3-PC by 15-lipoxygenase (15-LO). 1-Stearoyl-2-15(S)-HpETE-sn-glycero-3-PC is toxic to human umbilical vein endothelial cells (HUVECs) when used at a concentration of 100 μM.

1-Stearoyl-2-15(S)-HpETE-sn-glycero-3-PE is a phospholipid that contains stearic acid at the sn-1 position and 15(S)-HpETE at the sn-2 position. It is produced via oxidation of 1-stearoyl-2-arachidonoyl-sn-glycero-3-PE by 15-lipoxygenase (15-LO). 1-Stearoyl-2-15(S)-HpETE-sn-glycero-3-PE (0.6 and 0.9 μM) increases ferroptotic cell death in wild-type and Acsl4 knockout Pfa1 mouse embryonic fibroblasts (MEFs) treated with the GPX4 inhibitor RSL3.

The lipoxins are trihydroxy fatty acids containing a 7,9,11,13-conjugated tetraene. Lipoxin A4 (LXA4) was first described as a metabolite of 15-HpETE and or 15-HETE when added in vitro to isolated human leukocytes. The material obtained in this manner consists of at least four distinct isomers: 5(S), 6(S); 5(S), 6(R); and the 11-trans and 11-cis isomers of each of these. 6(S)-LXA4 is one of the original four metabolites first identified by Serhan, Nicolaou, and Samuelsson. It was considered to be an artifact by these authors because it lacked the potency of the 5(S),6(R) isomer with respect to contraction of isolated guinea pig lung parenchymal strips. It has not been possible to isolate natural LXA4 from humans or other mammals in amounts sufficient for determination of absolute stereochemistry. Most authors refer to LXA4 as the 5(S)

15(S)-HETrE is the hydroxy-trienoic acid resulting from 15-lipoxygenation of dihomo-γ-linolenic acid . It is an inhibitor of 5-LO in human PMNL with an IC50 value of 4.6 μM. In RBL cells, 15(S)-HETrE inhibits 5-LO, but is about 1 20 as potent as 15(S)-HpETE.

5(R)-HETE is a rare lipoxygenase product of arachidonic acid. Nearly all plant and animal 5-LOs produce 5(S)-HETE, but the presence of a 5(R)-LO and the synthesis of 5(R)-HpETE and 5(R)-HETE have been confirmed in oocytes of the bivalve mollusk, S. solidissima. 5(R)-HETE is more potent than the (S)-enantiomer as a chemotactic agent for human neutrophils.

12(S)-HpETE（12-羟基二十碳四烯酸）是花生四烯酸在12-脂氧合酶（12-LOX）作用下生成的过氧化代谢产物。​能剂量依赖性地刺激细胞内Ca2+释放（效用低于12-HETE），还能通过其对内皮细胞的作用参与血管张力的调节，诱导血管平滑肌细胞c-Fos和c-Jun蛋白的表达，增加AP-1（ activating protein 1）的活性。