Cytotoxic Quinones from the Roots of Aloe dawei.

Citation:
Yenesew A, Sunnerhagen, P., Erdelyi M, Abdissa N, Induli, M., Fitzpatrick P, Alao JP, Landberg G. "Cytotoxic Quinones from the Roots of Aloe dawei." Molecules. 2014;19,:3264-3273.

Abstract:

Seven naphthoquinones and nine anthraquinones were isolated from the roots of Aloe dawei by chromatographic separation. The purified metabolites were identified by NMR and MS analyses. Out of the sixteen quinones, 6-hydroxy-3,5-dimethoxy-2-methyl-1,4-naphthoquinone is a new compound. Two of the isolates, 5,8-dihydroxy-3-methoxy-2-methylnaphthalene-1,4-dione and 1-hydroxy-8-methoxy-3-methylanthraquinone showed high cytotoxic activity (IC₅₀ 1.15 and 4.85 µM) on MCF-7 breast cancer cells, whereas the others showed moderate to low cytotoxic activity against MDA-MB-231 (ER Negative) and MCF-7 (ER Positive) cancer cells.

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