8(s)hete

8(S)-HETE is a major lipoxygenase product in PMA-treated murine epidermis. It activates mouse keratinocyte protein kinase C with an IC50 of 100 μM. 8(S)-HETE also activates PPARα selectively at concentrations as low as 0.3 μM. Stereochemical assignment of the (S) enantiomer is based on comparison of chiral HPLC retention times to published results.

8(S),15(S)-DiHETE is formed when 15(S)-HETE is subjected to further oxidation by 15-LO. It causes eosinophil chemotaxis with an ED50 value of 1.5 μM but is not chemotactic for neutrophils. 8(S),15(S)-DiHETE antagonizes the hyperalgesic activity of 8(R),15(S)-DiHETE and LTB4 in the rat hind paw pain model.

8(S)-HETrE is a monohydroxy polyunsaturated fatty acid produced by rabbit neutrophil lipoxygenase when dihomo-γ-linolenic acid is used as a substrate. Although the biological activities of 8(S)-HETrE have not been well characterized, it is expected to behave similarly to 8(S)-HETE .

CAY10514 is an aromatic analog of 8(S)-HETE. It acts as a dual agonist of PPARα and PPARγ with EC50 values of 0.173 and 0.642 μM, respectively.