Design, synthesis and cytotoxic effect of hydroxy- and 3-alkylaminopropoxy-9,10-anthraquinone derivatives |
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Authors: | Teng Chi-Huang Won Shen-Jeu Lin Chun-Nan |
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Institution: | School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan 807, ROC. |
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Abstract: | In previous paper, we have reported the synthesis and the cytotoxic effect of 1,3-dihydroxy-9,10-anthraquinone derivatives. For further design of more potent compounds, a new series of 1-hydroxy-3-(3-alkylaminopropoxy)-9,10-anthraquinones and 3-(3-alkylaminopropoxy)-9,10-anthraquinones have been synthesized. The cytotoxicity of synthetic compounds were evaluated against human Hep G2, Hep 3B and HT-29 cells. Almost all compounds indicated significant inhibitory activity against Hep G2, Hep 3B and HT-29 cell lines in vitro. Compound 5 exhibited selective cytotoxicity against Hep G2 in a concentration-dependent manner with ED50 value of 1.23 +/- 0.05 microM. Structure-activity analysis revealed that most of the 1-hydroxy-3-(3-alkylamino-2-hydroxypropoxy)-9,10-anthraquinone showed stronger cytotoxic effects than those of 1-hydroxy-3- or 3-(3-alkylaminopropoxy)-9,10-anthraquinones against Hep 3B cell line in vitro. A sub-G1 cell stage and DNA fragmentation in MCF-7 cells were significantly observed after 72 h incubation with selective compound 16. The results show that 16 causes cell death by apoptosis. |
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