Table 2.

Classes of autacoids

Class of autacoid	Examples
Small molecules	NO, ATP, adenosine, serotonine, histamine
Peptides	Neuropeptides, endothelin, vasoactive intestinal peptide, gastrin
Proteins	Growth factors, interleukins, cytokines, leptin, matrix metalloproteases, galanin, bradykinin, kallikrein
Sugars	N-acetylglucosamine, heparin, adenosine
Glycolipids	Glycosphingolipides, gangliosides, ceramides
Lipids	Phospholipids, N-acylethanolamides endocannabinoids, resolvins, protectins, maresins, lipoxins