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Antiproliferative Activity of Lignans from Olea ferruginea: In Vitro Evidence Supported by Docking Studies
Abdur Rauf1,2, Umer Rashid3, Aniqa Atta4
1Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, 11671 Riyadh, Saudi Arabia.
Background:
The aim of the current study was to investigate the anticancer potential of bioactive compounds isolated from the leaves of Olea ferruginea (O. ferruginea). Lignans from O. ferruginea were previously described to possess antibacterial, antileishmanial, and antioxidant properties. Nevertheless, the antiproliferative activity of cycloolivil (1), ferruginan (2), and ferruginan A (3) have not been investigated in depth.
Methods:
The compounds were isolated from the ethyl acetate fraction of the leaves extract of O. ferruginea. The isolated molecules were evaluated for their anticancer activity against U-87 MG malignant glioma cells. In parallel, molecular docking studies were also performed to investigate the interaction of the compounds with a duplex DNA sequence and epidermal growth factor receptor (EGFR).
Results:
In vitro tests showed that all three compounds inhibit U-87 MG malignant glioma cell proliferation dose-dependently in the µM range, and ferruginan A (3) was highlighted as the most promising compound of the set. Molecular docking studies showed that the compounds could interfere with double stranded DNA possessing a cisplatin 1,2-d(GpG) intrastrand cross-link and EGFR.
Conclusions:
Overall, the findings suggest that the tested compounds from O. ferruginea may represent a starting point for the identification of novel tools to inhibit glioma cell proliferation.
