Leelamine hydrochloride, a tricyclic diterpene extracted from pine tree bark, inhibits the transcriptional activity of the androgen receptor, known to regulate fatty acid synthesis [2,3]. This compound acts as a cannabinoid receptor type 1 (CB1) agonist and suppresses SREBP1-regulated fatty acid/lipid synthesis in prostate cancer cells, irrespective of androgen receptor status.
Beauveriolide I is a cyclodepsipeptide that has been found inBeauveriaand an inhibitor of lipid droplet formation.1It 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.1,2Beauveriolide I also inhibits acyl-coenzyme A:cholesterol acyltransferase (ACAT) activity in mouse macrophage membranes (IC50= 6 μM).2
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)