RESUMEN
A new flavonone, named as (2R, 3S)-pinobanksin-3-cinnamate(1), together with six known compounds, pinocem-brin (2), pinobanksin (3), 3-O-acetylpinobanksin (4), galangin (5), kumatakenin(6), and 3-methylkaempferol (7), were isolated from a 95% ethanol extract of seeds of Alpinia katsumadai through a combination of various chromatographic techniques, including silica gel and Sephadex LH-20. The structure of compound 1 was elucidated by spectroscopic data analysis. Compound 1 exhibits a potent neuroprotective effect against the corticosterone-damaged PC12 cells, which may be underlying the effect by scavenging intracellular ROS.
Asunto(s)
Alpinia/química , Colestenonas/farmacología , Cinamatos/farmacología , Fármacos Neuroprotectores/farmacología , Semillas/química , Animales , Muerte Celular/efectos de los fármacos , Colestenonas/química , Colestenonas/aislamiento & purificación , Cinamatos/química , Cinamatos/aislamiento & purificación , Fragmentación del ADN/efectos de los fármacos , Fármacos Neuroprotectores/química , Fármacos Neuroprotectores/aislamiento & purificación , Estrés Oxidativo/efectos de los fármacos , Células PC12 , Ratas , Especies Reactivas de Oxígeno/metabolismoRESUMEN
Two new compounds, named as (2R,3S)-pinobanksin-3-cinnamate (1), and 15alpha-hydroxy-(22E,24R)-ergosta-3,5,8(14),22-tetraen-7-one (2), were isolated from the endophytic fungus Penicillium sp. FJ-1 of Acanthus ilicifolius Linn. Their structures were elucidated on the basis of spectroscopic analysis. Additionally, compound 1 exhibited potent neuroprotective effects on corticosterone-damaged PC12 cells, and compound 2 showed potent cytotoxicity on glioma cell lines.