Table 1. Summary of esterified eicosanoids generated by mammalian cells, and their actions, where known.
EXOGENOUS: | ||
Cell Type | Species generated | Function |
Epithelial cells | 16-, 17-, 18-, 19-, 20- HETE- PE/PS/PI/PC 15-HETE-PI/PE 12-HETE-PI/PE/PC/PS 5-HETE-PE/PC |
|
Endothelial cells | 5-HETE-PC 12-HETE-PC 15-HETE-PI 16-, 17-, 18-, 19-, 20- HETE- PE/PS/PI/PC |
Inhibits histamine- and arachidonate- stimulated production of PGE2 and 6- ketoPGF1α in human endothelial cells. |
Neutrophils | 15-HETE-PC/PI | |
Murine macrophages | 15-HETE-PC/PI | |
Human peripheral blood mononuclear cells |
12-HETE-PI | |
ENDOGENOUS: | ||
Platelets | 12-HETE-PE/PC | Enhances coagulation of platelets |
Murine macrophages | 12-HETE-PE PGE2-G 2-AG PGH2-G, which is then converted to PGD2-G, PGE2- D, PGF2α-G and PGI2-G. PGE2-AEA |
Calcium mobilization and activation of the ERK/MAPK pathway. Inhibits LPS/IFNγ-induced IL-12 and IL- 23 expression in microglia and macrophages by reducing expression of IL-12p40. |
Human peripheral blood monocytes |
15-HETE-PE | Inhibition of LPS-induced G-CSF and TNFα generation my human monocytes. Inhibition of NET formation by neutrophils. Promotes MUC5AC formation by |
Neutrophils | 5-HETE-PE/PC | Inhibition of NET formation. Enhances IL-8 and superoxide generation by neutrophils. |
Leprosy lesions, low density lipoproteins |
PC-esterified isoprostanes | Exacerbate leprosy infection Increase MCP-1, IL-8 generation via PPARa in endothelial cells, increase monocyte binding to endothelium. |