Description
Aeruginosins are tetrapeptides found in cyanobacteria such as Microcystis aeruginosa. Like other cyanotoxins, aeruginosins inhibit serine proteases and protein phosphatases (PPs). In endothelial cells, aeruginosins decrease levels of IL-8 and ICAM-1 and inhibit NF-κB activity. Aeruginosins may also bind thrombin and exhibit antithrombotic activity.
References
Kapuścik A, Hrouzek P, Kuzma M, et al. Novel Aeruginosin-865 from Nostoc sp. as a potent anti-inflammatory agent. Chembiochem. 2013 Nov 25;14(17):2329-37. PMID: 24123716.
Silva-Stenico ME, Silva CS, Lorenzi AS, et al. Non-ribosomal peptides produced by Brazilian cyanobacterial isolates with antimicrobial activity. Microbiol Res. 2011 Mar 20;166(3):161-75. PMID: 20630723.
Wang G, Goyal N. Aeruginosin analogs and other compounds with rigid bicyclic structure as potential antithrombotic agents. Cardiovasc Hematol Agents Med Chem. 2009 Apr;7(2):147-65. PMID: 19355876.
Radau G, Gebel J, Rauh D. New cyanopeptide-derived low molecular weight thrombin inhibitors. Arch Pharm (Weinheim). 2003 Aug;336(8):372-80. PMID: 14502757.