Definition
ChEBI: Beauveriolide I is a cyclodepsipeptide with formula C27H41N3O5. It was originally isolated from the fungus Beauveria sp. FO-6979 during a screening program for inhibitors of lipid droplet accumulation in murine macrophages. It is an inhibitor of acyl-CoA: cholesterol acyltransferase (ACAT) and effective at reducing atherogenic lesions of the artery and heart in mouse models. It has a role as a geroprotector, a fungal metabolite, an EC 2.3.1.26 (sterol O-acyltransferase) inhibitor, an antiatherogenic agent and an antiatherosclerotic agent. It is a macrocycle and a cyclodepsipeptide.
Biological Activity
Beauveriolide I is a cyclodepsipeptide that has been found in Beauveria and an inhibitor of lipid droplet formation.1 It inhibits lipid droplet formation when used at concentrations of 3 and 10 μM, as well as inhibits cholesterol synthesis (IC50 = 0.78 μM), in primary mouse peritoneal macrophages.1,2 Beauveriolide I also inhibits acyl-coenzyme A:cholesterol acyltransferase (ACAT) activity in mouse macrophage membranes (IC50 = 6 μM).2
References
1.Namatame, I., Tomoda, H., Si, S., et al.Beauveriolides, specific inhibitors of lipid droplet formation in mouse macrophages, produced by Beauveria sp. FO-6979J. Antibiot. (Tokyo)52(1)1-6(1999)
2.Namatame, I., Tomoda, H., Ishibashi, S., et al.Antiatherogenic activity of fungal beauveriolides, inhibitors of lipid droplet accumulation in macrophagesProc. Nat. Acad. Sci. USA101(3)737-742(2004)
