New composites of betulin esters with arabinogalactan as highly potent anti-cancer agents
| Autor: | E. A. Spivak, Boris N. Kuznetsov, Anna S. Zamay, Svetlana A. Kuznetsova, Vladimir V. Boldyrev, Yu. N. Malyar, Tatyana P. Shakhtshneider, Nikolay V. Chesnokov, M. A. Mikhailenko, Tatiana N. Zamay |
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| Rok vydání: | 2015 |
| Předmět: |
Lung Neoplasms
Cell Survival Antineoplastic Agents Plant Science 01 natural sciences Biochemistry Galactans Analytical Chemistry Ehrlich ascites carcinoma chemistry.chemical_compound Arabinogalactan Cell Line Tumor Organic chemistry Humans Propidium iodide Viability assay Composite material Solubility Aqueous solution Betulin 010405 organic chemistry Organic Chemistry Esters Triterpenes 0104 chemical sciences 010404 medicinal & biomolecular chemistry chemistry Cancer cell Microscopy Electron Scanning Drug Screening Assays Antitumor |
| Zdroj: | Natural product research. 30(12) |
| ISSN: | 1478-6427 |
| Popis: | Betulin and its esters are the natural compounds with high in vitro cytotoxicity toward many cancer cells. However, the poor water solubility of these compounds has limited their applications. We prepared new composites of betulin esters using two methods, namely ball-milling of the mixtures of betulin esters with arabinogalactan and preparation of thin films of these mixtures by evaporating the aqueous solutions. These composites revealed higher water solubility as compared with the initial substances without losing the structural integrity and functionality. As a result, the new composites have shown much higher inhibitory effects against different cancer cell lines such as Ehrlich ascites carcinoma cells and lung carcinoma cells (A549) in comparison with the initial substances. The cell viability studies based on Annexin V and Propidium iodide probes have confirmed the high proapoptotic effect of betulin ester derivatives against cancer cells. |
| Databáze: | OpenAIRE |
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