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Cytotoxic Sesquiterpene Lactones From the Aerial Parts of Inula Aucheriana Publisher Pubmed



Gohari AR1 ; Mosaddegh M2 ; Naghibi F2 ; Eslamitehrani B2 ; Pirani A2 ; Hamzeloomoghadam M3 ; Read RW4
Authors

Source: Anais da Academia Brasileira de Ciencias Published:2015


Abstract

Inula aucheriana DC is a member of the family Asteraceae which is known to produce cytotoxic secondary metabolites noted as sesquiterpene lactones. In the present study, sesquiterpene lactones inuchinenolide B, 6-deoxychamissonolide (stevin) and 14-acetoxy-1p,5a,7oH-4p-hydroxy-guai-9(10),11(13)-dien-12,8a-olide were isolated from I. aucheriana. Inuchinenolide B and 14-acetoxy-1p,5a,7aH-4p-hydroxy-guai-9(10),11(13)-dien-12,8a-olide were further evaluated by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay to demonstrate cytotoxic activity with IC50 values of (56.6, 19.0), (39.0, 11.8), and (55.7, 15.3) |ig/mL against HepG-2, MCF-7 and A-549 cells, respectively. The cytotoxic activity of the two evaluated sesquiterpene lactones partly explains the cytotoxic activity that was previously observed for the extracts of Inula aucheriana. The isolated compounds could be further investigated in cancer research studies. © 2015, Academia Brasileira de Ciencias. All rights reserved.
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