Long-Chain Acetylenic Ketones from the Micronesian Sponge Haliclona sp. Importance of the 1-yn-3-ol Group for Antitumor Activity |
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| Authors: | Guang-Xiong Zhou Tadeusz F Molinski |
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| Institution: | Department of Chemistry, University of California, Davis, California 95616, USA. Tel. (530) 752-6358, Fax (530) 752-8995 |
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| Abstract: | Two new long-chain C33 polyacetylenic compounds, halicynones A and B were isolated from the marine sponge Haliclona sp. along with known analogs. The known compound pellynol A possessing a 1-yn-3-ol terminus, exhibited strong antitumor activity against the human colon tumor cell line HCT-116 (IC50 0.026 μg/mL), however, the corresponding 1-yn-3-one, halicynone A, was inactive, which suggests an important role for the terminal 1-yn-3-ol functional group in mediating cytotoxic activity. |
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| Keywords: | Porifera ene-yne HCT-116 cytotoxic activity polyacetylene pellynol |
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