Catalpalactone

Catalpalactone exhibits high antitermitic, and cytotoxic activities, it exhibits potent inhibitory effects on lipopolysaccharide-induced NO synthesis in RAW 264.7 cells , with IC50 values of 9.80 microM. Catalpalactone can inhibit dopamine biosynthesis by reducing tyrosine hydroxylase (TH) and aromatic-l-amino acid decarboxylase (AADC) activities and enhance L-DOPA- induced cytotoxiciy in PC12 cells. Catalpalactone also exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol 13-acetate (TPA) -induced Epstein-Barr virus early antigen (EBV-EA) activation in Raji cells.