Azorellane diterpenoids from Laretia acaulis inhibit nuclear factor‐kappa B activity

• DOI: 10.1002/ptr.2218
• Publication Date: 2007-07-12T14:54:18Z
• Authors: Jorge Borquez; Luis A. Loyola; Glauco Morales; Aurelio San‐Martín; Raquel Roldan; Nieves Marquez; Eduardo Muñoz
• Keywords: Inflammation; 0301 basic medicine; Laretia acaulis; Azorellane diterpenoids; Molecular Structure; Tumor Necrosis Factor-alpha; NF-kappa B; NF-κB; Jurkat Cells; Structure-Activity Relationship; 03 medical and health sciences; Humans; Diterpenes; Apiaceae

AbstractTranscription factor NF‐κB plays a key role in the inducible expression of genes mediating proinflammatory effects, and is thus an important target for the development of antiinflammatory drugs. Laretia acaulis (Cav.) Gill et Hook (Apiaceae) is a medicinal plant used in the high Andes mountains for different ailments such as diabetes, inflammation and for general pain. In addition to the known azorellanol (2) and 7‐deacetylazorellanol (4), 13‐epiazorellanol (1) was also isolated from the aerial part of this plant. Its structure was based on spectroscopic comparison with azorellanol (2) and by chemical characterization. While compounds 2 and 4 showed potent anti‐NF‐κB activity by targeting the activity of the IκBα kinase, compound 1 was completely inactive highlighting the importance of position 13 in the biological activities of this class of tetracyclic diterpenoids. Copyright © 2007 John Wiley & Sons, Ltd.