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Abstract Title:

Structure-activity relationships of diverse xanthones against multidrug resistant human tumor cells.

Abstract Source:

Bioorg Med Chem Lett. 2017 Feb 1 ;27(3):447-449. Epub 2016 Dec 20. PMID: 28065566

Abstract Author(s):

Qiwen Wang, Chenyao Ma, Yun Ma, Xiang Li, Yong Chen, Jianwei Chen

Article Affiliation:

Qiwen Wang

Abstract:

Thirteen xanthones were isolated naturally from the stem of Securidaca inappendiculata Hassk, and structure-activity relationships (SARs) of these compounds were comparatively predicted for their cytotoxic activity against three human multidrug resistant (MDR) cell lines MCF-7/ADR, SMMC-7721/Taxol, and A549/Taxol cells. The results showed that the selected xanthones exhibited different potent cytotoxic activity against the growth of different human tumor cell lines, and most of the xanthones exhibited selective cytotoxicity against SMMC-7721/Taxol cells. Furthermore, some tested xanthones showed stronger cytotoxicity than Cisplatin, which has been used in clinical application extensively. The SARs analysis revealed that the cytotoxic activities of diverse xanthones were affected mostly by the number and position of methoxyl and hydroxyl groups. Xanthones with more free hydroxyl and methoxyl groups increased the cytotoxic activity significantly, especially for those with the presence of C-3 hydroxyl and C-4 methoxyl groups.

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Sayer Ji
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