Gianluca Scroccu
Anti-inflammatory sesquiterpene lactones from Onopordum illyricum L. (Asteraceae), an Italian medicinal plant
SANNA, CINZIA;BALLERO, MAURO;
2017-01-01
Abstract
Onopordum illyricum L. is a medicinal plant used in the Mediterranean area as antipyretic for the treatment of respiratory and urinary inflammations and to treat skin ulcers. Repeated chromatographic purification of O. illyricum aerial parts led to the isolation of six known sesquiterpenes, which were evaluated for the inhibition of the pro-inflammatory transcription factors NF-κB and STAT3 and for the activation of the transcription factor Nrf2, which regulates the cellular antioxidant response. Structure–activity relationships were interpreted by the NMR-based cysteamine assay. The sesquiterpene lactone vernomelitensin significantly inhibited NF-κB and STAT3, showing also a significant Nrf2 activation. Accordingly, the cysteamine assay selected vernomelitensin as the most reactive of the isolated sesquiterpenes, identifying the α,β-unsaturated aldehyde moiety as responsible for the higher (re)activity.File | Dimensione | Formato | |
---|---|---|---|
2017_ Onopordum illyricum_Fitoterapia.pdf Solo gestori archivio
Tipologia: versione editoriale
Dimensione 545.81 kB
Formato Adobe PDF
|
545.81 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.