Kadsulignan L shows in vitro antiviral effects on hepatitis B virus. It also shows moderate platelet-activating factor (PAF) antagonistic activities with the IC50 value of 2.6 x 10(-5) M.
Piperolactam C possesses anti-platelet aggregation activity in vitro. It can inhibit the growth of the fungi Cladosporium sphaerospermum and C. cladosporioides.
Cryptomeridiol is a potential skin-whitening agent, exhibits melanogenesis inhibitory activity on α-MSH-stimulated B16 melanoma cells. Cryptomeridiol has low activity against A. niger, T. mentagrophytes, and C. albicans. (-)-Cryptomeridiol also exhibits a significant and concentration-dependent inhibitory effect on PAF receptor binding, with inhibitory concentration (IC)(50) values of 17.5 uM.
Futoenone and a series of its derivatives have shown inhibitory activities against matrix metalloproteinases, the molecular modelings of these compounds indicate the preferred binding of the P2' site of the enzymes. Neolignan derivative compounds of the 2,4-diaryl-1,3-dithiolane and futoenone variety exhibit both platelet activating factor receptor(PAF)and 5-lipoxygenase antagonist activity.
Pinusolide is a platelet activating factor ( PAF) antagonist, it may prove of therapeutic value in the treatment of hypotension, it has antileukemic potential, and could be used to treat neurodegenerative diseases. Pinusolide attenuates blockade of insulin signaling by enhancing IRS-1 tyrosine phosphorylation by the activating the AMPK pathway, indicates the targeting of AMPK represents a new therapeutic strategy for hyperglycemia-induced insulin resistance and type 2 diabetes.
Myrianthic acid shows anticancer activity, it shows inhibitory activities on foam cell formation in human monocyte-derived macrophages induced by acetylated low-density lipoproteins at a 50 uM concentration. Myrianthic acid is equivalently inhibitive as acetylsalicylic acid (IC50: 57.0 microM) on epinephrine induced platelet aggregation.
Aristolactam BIII possesses anti-platelet aggregation activity in vitro, it also shows significant cytotoxic activity (IC50 values < 4 microg mL) against P-388, HT-29 and A549 cell lines in vitro.