15(s) hede

15(S)-HEDE is produced from 11Z,14Z-eicosadienoic acid by 15-LO. 15(S)-HEDE is an inhibitor of RBL-1 cell 5-LO with an IC50 value of 26 μM.

15-OxoEDE, generated through the oxidation of 15-HEDE, effectively inhibits 5-LO in RBL-1 cells with an IC50 of 55 µM, approximately half as potent as 15(S)-HEDE. Additionally, another related oxo-eicosanoid, 5-oxoETE, is produced from 5(S)-HETE via a specific dehydrogenase, exhibiting significant inflammatory activity.