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| Content Provider | MDPI |
|---|---|
| Author | Di Donato, Cristina Lavorgna, Margherita Fattorusso, Roberto Isernia, Carla Isidori, Marina Malgieri, Gaetano Piscitelli, Concetta Russo, Chiara Russo, Luigi Iacovino, Rosa |
| Abstract | Cyclodextrins are natural macrocyclic oligosaccharides able to form inclusion complexes with a wide variety of guests, affecting their physicochemical and pharmaceutical properties. In order to obtain an improvement of the bioavailability and solubility of 5-fluorouracil, a pyrimidine analogue used as chemotherapeutic agent in the treatment of the colon, liver, and stomac cancers, the drug was complexed with alpha- and beta-cyclodextrin. The inclusion complexes were prepared in the solid state by kneading method and characterized by Fourier transform-infrared (FT-IR) spectroscopy and X-ray powder diffractometry. In solution, the 1:1 stoichiometry for all the inclusion complexes was established by the Job plot method and the binding constants were determined at different pHs by UV-VIS titration. Furthermore, the cytotoxic activity of 5-fluorouracil and its complexation products were evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on MCF-7 (breast cancer cell line), Hep G2 (hepatocyte carcinoma cell line), Caco-2 (colon adenocarcinoma cell line), and A-549 (alveolar basal epithelial carcinoma cell line). The results showed that both inclusion complexes increased the 5-fluorouracil capability of inhibiting cell growth. In particular, 5-fluorouracil complexed with beta-cyclodextrin had the highest cytotoxic activity on MCF-7; with alpha-cyclodextrin the highest cytotoxic activity was observed on A-549. The IC50 values were equal to 31 and 73 µM at 72 h, respectively. Our results underline the possibility of using these inclusion complexes in pharmaceutical formulations for improving 5-fluorouracil therapeutic efficacy. |
| File Size | 4171776 |
| File Format | |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules21121644 |
| Journal | Molecules |
| Issue Number | 12 |
| Volume Number | 21 |
| Language | English |
| Publisher Date | 2016-12-01 |
| Access Restriction | Open |
| Subject Keyword | cyclodextrin 5-fluorouracil inclusion complex cytotoxicity |
| Content Type | Text |
| Resource Type | Article |
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