14,15-Leukotriene D4 - CAS 75290-64-1

14,15-Leukotriene D4 (14,15-LTD4) is a member of an alternate class of LTs synthesized by a pathway involving the dual actions of 15- and 12-lipoxygenases (15- and 12-LOs) on arachidonic acid via 15-HpETE and 14,15-LTA4 intermediates. 14,15-LTD4 is classified as an eoxin (EXD4), because it is formed mostly by eosinophils. However, mast cells and nasal polyps can synthesize 14,15-LTD4 as well. Little is known about the physiological actions of 14,15-LTD4. It has weak contractile activity on both guinea pig ileum and pulmonary parenchyma in contrast to the effects of 5-LO-derived LTs. However, in an in vitro permeability assay, 14,15-LTD4 can increase vascular permeability of human endothelial cell monolayers, with similar potency to that of 5-LO-derived LTs, resulting in plasma leakage, a hallmark of inflammation.

Endogenous Metabolite, Others

Metabolism, Others

75225

C25H40N2O6S

496.66

CCCCC[C@H](O)[C@H](SC[C@H](N)C(=O)NCC(O)=O)\C=C\C=C\C=C/C\C=C/CCCC(O)=O

-20°C

Ice Packs

Small Compound