20-carboxy Arachidonicacid (20-COOH-AA) is the major metabolite of 20-HETE that is produced in renal tubular epithelial, endothelial, and microvascular smooth muscle cell cultures. This ω-oxidation conversion can take place using purified alcohol dehydrogenases three and four or by microsomes containing recombinant human CYP4F3B. Like 20-HETE, 20-COOH-AA inhibits ion transport in the kidneys. It also produces vasorelaxation of porcine coronary microvessels constricted with endothelin. 20-COOH-AA binds to isolated ligand binding domains of peroxisome proliferator-activated receptor α (PPARα) (Kd = 0.87 ± 0.12 μM) and PPARγ (Kd = 1.7 ± 0.5 μM), and is a dual activator of PPARα and PPARγ in a transiently transfected COS-7 cell reporter system.
5,6-dehydro Arachidonicacid is an analog of arachidonicacid with an acetylene in the 5,6 position. It inhibits 5-LO in rat basophilic leukemia cells, with a Ki value of 15 μM. In guinea pig leukocytes, 5-LO is inhibited by 5,6-dehydro arachidonicacid with an IC50 value of 10 μM.
Arachidonicacid leelamide is a phospholipase A2 inhibitor. Phospholipase A is a hydrolase responsible for the release of arachidonicacid from the sn2 position of phospholipids. The released arachidonicacid is then converted to mediators of inflammation