Structural Optimization and Improving Antitumor Potential of Moreollic Acid from Gamboge |
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| Authors: | Li-Zhi Cheng Dan-Ling Huang Min Liao Ke-Ming Li Zhao-Qiu Wu Yong-Xian Cheng |
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| Institution: | 1.State Key Laboratory of Natural Medicines, School of Biopharmacy, China Pharmaceutical University, Nanjing 211198, China;2.School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen 518060, China; (M.L.); (K.-M.L.);3.Institute for Inheritance-Based Innovation of Chinese Medicine, Marshall Laboratory of Biomedical Engineering, School of Pharmaceutical Sciences, Shenzhen University Health Science Center, Shenzhen 518060, China |
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| Abstract: | Moreollic acid, a caged-tetraprenylated xanthone from Gamboge, has been indicated as a potent antitumor molecule. In the present study, a series of moreollic acid derivatives with novel structures were designed and synthesized, and their antitumor activities were determined in multifarious cell lines. The preliminary screening results showed that all synthesized compounds selectively inhibited human colon cancer cell proliferation. TH12-10, with an IC50 of 0.83, 1.10, and 0.79 μM against HCT116, DLD1, and SW620, respectively, was selected for further antitumor mechanism studies. Results revealed that TH12-10 effectively inhibited cell proliferation by blocking cell-cycle progression from G1 to S. Besides, the apparent structure–activity relationships of target compounds were discussed. To summarize, a series of moreollic acid derivatives were discovered to possess satisfactory antitumor potentials. Among them, TH12-10 displays the highest antitumor activities against human colon cancer cells, in which the IC50 values in DLD1 and SW620 are lower than that of 5-fluorouracil. |
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| Keywords: | Gamboge structural optimization synthesis antitumor |
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